JPH01300239A - Display controller - Google Patents

Abstract

PURPOSE:To make sufficient kinds of display with a small number of data and to make even free displays which are not under a rule of encoding by making a display based upon 1st encoded display control data and a display based upon a 2nd unencoded display control data selectively. CONSTITUTION:A display control data output means outputs three kinds of data, e.g. the 1st display control data which are encoded, the 2nd display control data which are not encoded and control displays in display segment units, and indication data which indicates either of the 1st and 2nd display control data. Further, a selecting means selects which displays based upon the 1st and 2nd display control mode is made according to the indication data. Then the 1st display control data is generated by a camera itself and the 2nd display control data is inputted from an IC card loaded on the camera. Consequently, sufficient kinds of displays can be made with a small number of data and free displays which are not under the rule of encoding can be made.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display control device for a camera or the like, and more particularly to a display control device for numerical display.

2. Description of the Related Art Cameras generally display numerical values such as shutter speed and aperture value. For example, shutter speed is displayed in a 4-digit, 7-segment display. Therefore, although it is possible to display numerical values from 0 to 9999, only about 33 of them are used in practice. Therefore, in order to reduce the amount of data, the display control signal is encoded and the display is controlled using, for example, a 5-bit signal.

However, in this case, predetermined rules are required for encoding. Therefore, it is not possible to perform a different display midway through (after the rules are determined), and in order to do so, it is necessary to control each segment.

By the way, there is a tendency for IC cards to be introduced in cameras in order to expand their functions, and it is conceivable that these IC cards will be added one after another later on in addition to those initially provided. In such a case, sending the above-mentioned coded signal (display data) from the IC card will cause the problem that the display cannot be performed.

An object of the present invention is to solve such problems in a display control device designed to reduce display control data.

One Step to Solve the Problems To achieve the above object, the display control device of the present invention includes coded first display control data, uncoded first display control data that controls display for each display segment, display control data output means for outputting three types of data: display control data No. 2 and instruction data indicating which of the first display control data and the second display control data is to be used; and the first display control data. a decoding means for decoding data and creating control data for each display segment; a display means having a segment-configured display element and displaying based on the data decoded by the decoding means or the second control data; and a selection means for selecting based on which of the first and second display control data a display is to be performed based on the instruction data.

Further, when the present invention is configured as a display control device for a camera, the first display control data is formed by the camera itself,
The second display control data may be input from an IC card attached to the camera.

According to such a configuration, when encoded first display control data is input, the selection means selects the first display control data based on the instruction data indicating that the data is the first display control data. It acts to create a state in which display is performed based on display control data. As a result, the display means performs a display based on the first display control data decoded by the decoding means.

Next, when non-coded second display control data is input, the selection means selects a display based on the second display control data by instruction data indicating that the data is the second display control data. acts to create a state in which As a result, the display means performs a display based on the second display control data.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, an embodiment in which the present invention is applied to a camera will be described.

FIG. 1 is a circuit block diagram of the camera of this embodiment. In the figure, (μC) is the control of the entire camera.

A microcomputer (hereinafter referred to as a "microcomputer") that performs various calculations has an E''PROM, and internal writing and reading can be performed freely.

(＾Fct) is a focus detection circuit that performs focus detection, and consists of a CCD, an integral control circuit, and a ＾/D conversion circuit.
Information on the subject is obtained for three distance measurement areas, which will be described later, and this information is A/D converted and output to a microcomputer (μC). (1,0+) is an auxiliary light emitting element that emits light toward the subject to enable focus detection when the brightness is low and focus cannot be detected.

(LM) is a photometry circuit that performs photometry for four areas (described later), converts the photometry values from A/D to microcontroller (
μC) as luminance information. (DISPC) is a display control circuit that inputs display data and display control signals from a microcomputer (μC) and causes a display section (DISP+) on the top surface of the camera body and a display section (DISP+) in the viewfinder to perform a predetermined display.

In this embodiment, the IC card (CD) includes a custom card that allows you to change and select camera modes depending on the user, and controls various functions of the camera (AE program, AE mode, AF mode, etc.) depending on the shooting situation. There are 4 types of M410 cards: 4 program cards that automatically determine the settings, 4 function cards that add special functions, and a memory card that stores shooting data.

These cards will be explained in detail later. (ST
) is the electronic flash device, (IF) is the camera microcontroller (μ
C) and an interface provided between the electronic flash device (ST).

(STC) is a light control circuit that receives reflected light from a subject during flash emission that has passed through a photographic lens (not shown), and stops the flash emission when the appropriate exposure amount is reached.

(LE) is a lens circuit provided in the lens and outputs information specific to the interchangeable lens to the microcomputer (μC) of the camera. (
LECN) is a lens drive control circuit that drives the photographic lens based on focus detection information. (ENC) is a converter that detects the rotation of the motor that drives the lens, and outputs the lens output to the microcomputer (μC) at each predetermined rotation angle. Ru. The microcomputer (μC) counts these pulses, detects the amount of extension from the current position (1), and detects the distance from this amount of extension (number of extension pulses (CT)).

(TvcT) is a shutter control circuit that controls the shutter based on a control signal from a microcomputer (μC); (A
(VCT) is an aperture control circuit that controls the aperture based on a control signal from a microcomputer (μC), and (MD) is a film winding circuit that controls the aperture based on a control signal from a microcomputer (μC).
This is a motor control circuit that controls rewinding. (BZ)
is a buzzer that warns you when the shutter speed reaches a speed that causes camera shake. (E) is a battery that serves as a power source;
DC/DC is a DC/DC converter to stabilize the voltage (vnn) supplied to the microcontroller, (D,) ~ (
D4) is a group of diodes that provides a voltage lower than the voltage (VDD) to the microcontroller when the DC/DC converter is off, reducing power consumption.The hardware of the camera microcontroller (μC) operates at this low voltage. Because it can operate,
An interrupt occurs, but the microcomputer (μCZ) on the IC card (CD) cannot be driven at this low voltage. (R1)
(c++) is a reset resistor and capacitor for resetting the microcomputer (μC) when the battery is installed. (TrI) is a power supply transistor that supplies power to a part of the circuit described above.

Next, to explain the switches, (S*t) is a battery installation switch that turns OFF when a battery is installed, and when a battery is installed and the switch (SIIE) turns OFF.
When it becomes FF, "L" is applied to the terminal (RE) of the microcomputer (μC).
A signal changing from level to rH to level is applied, and the microcomputer (μC) executes a routine described below. (So) is the exposure mode change switch for the normally open button 2.
), the exposure mode is changed. (sF) is a function change switch with two buttons that are always open, and the function can be changed (for example, switching between continuous shooting and single shooting) by operating this switch and the up switch (Sup) and down switch (Sdn). . (Sco) is a card switch with two buttons that are normally open when a card is installed, and is used to enable/disable functions by the card or to change data settings on a card other than a program card. Yes (details will be explained later). (Sco
s) is a card data setting switch that is operated when transitioning to data settings when a card is installed. (Sl) is a switch for performing preparatory operations necessary for shooting such as photometry and AF operation. Then, press the first release button (not shown).
It turns ON with a stroke. The above switch (SEX),
(SFLIN), (SC11).

When any one of (Scos) and (St) is operated and turned ON, an interrupt (INTI), which will be described later, is executed.

(SN) is a main switch for enabling the camera to operate, and when this switch is turned on or off, an interrupt (IN'h), which will be described later, is executed.

(SMLIF) is ONL when mirror up is completed.
, a switch that turns OFF when the shutter mechanism is charged and the mirror is lowered.

(S,) is a release switch operated when performing a shadowing operation, and is turned on when the second stroke (deeper than the first stroke) of the release button is pressed.

(SW.) is a one-frame switch that is turned ON when one frame of film is wound. (SA!L) is a switch for performing AE lock (n exit vine) and is composed of a normally open bush switch. (SAF/)l) is a focus adjustment mode switch that switches between AF and manual focus adjustment.

(S,) is a normally open change data selection switch for selecting data to be changed. (SSELF) is a normally open button switch that sets the selfie mode when taking selfies. When this mode is set and the release switch (S2) is turned on, selfie photography starts (SAV) is an aperture change switch that changes the aperture value by operating this switch and operating the up switch or down switch when the exposure mode is M mode (manual mode). Switch above (SAV) in M mode
When there is no operation, the shutter speed is changed by operating the up switch or down switch. (SFL
M) is a film detection switch that detects whether or not film is loaded, and is placed on the film rail surface near the spool chamber, and is turned off when film is present. (SllC) is a back cover closure detection switch that turns ON when the 11 cover is closed and turns OFF when it is opened.
C) executes an interrupt routine to be described later. (S,W
) is a switch to start film rewind,
When operated, ONL executes an interrupt routine to be described later, and turns OFF when the back cover is opened. (sea) is IC
This is an IC card installation switch that turns OFF when a card (CO) is installed, and when turned OFF, resets the microcomputer (μCz) of the IC card (CD). (X) is a so-called X contact, which is turned OFF when the shutter completes one curtain fastening, reaches 0IJL, and the release member (not shown) is turned off.

(Sup) is a normally open up switch that changes or adds data to be changed, and (Sdn) is a normally open down switch that also performs subtraction.

When changing the aperture value in M mode, turn the aperture change switch (SAv) ON and operate (Sup) and (Sdn) to increase or decrease the aperture value, and turn the aperture change switch O.
The FF, (Sup), and (Sdn) functions function to increase and decrease the shutter speed, respectively. When the up switch (Sup) + down switch (Sdn) is operated, the terminals (IPto) and (IP□) are respectively "L".
Detected by becoming level. In Figure 1, the line (Wl) common to each of the above switches is the ground potential point (GN
D).

Table 1 summarizes the above-mentioned switches and their functions.

Next, before explaining the operation of the camera of this embodiment, four types of IC cards used here will be explained.

(1) Custom card; This IC card allows the photographer to select the functions (controllable functions) of the camera that are necessary for the photographer (delete those that are considered unnecessary), or to select functions alternatively. The intention of the photographer.

The aim is to provide cameras that are compatible with photographic techniques. Additionally, unnecessary functions can be omitted, resulting in a camera that is simplified and has good operability when changing modes. Next, the explanation regarding this card and the display contents performed for it will be explained.

First, to select the function of this IC card, there is a choice between (i) exposure mode selection and (ii) function.

(iii) There is a relationship due to the operation of a switch on the lens side.

First, the exposure modes related to the exposure mode selection in (i) above are: (b-1) Program mode (P mode) (b-2) Aperture priority mode (A mode) (b-3) Manual mode (M mode) ) (b-4) Shutter priority mode (S
As a basic rule, the P mode is always set, and the remaining three modes (A, M, and S modes) can be selected in combination. Therefore, there are eight combinations, and among the four mode displays (however, PROGRAM is represented by P) shown in FIG. 2(a), when setting the mode, the display of the selected combination is The dots around the 0 character (or numeric value) are displayed as shown in Figure (b), and the selected exposure mode is displayed during shadowing [Figure 2 (c) (A mode selection)]. It shows blinking.

Details will be described later. The entire display is shown in FIG. 2(a) for reference.

Next, (ii) FI function has the presence/absence of the camera shake buzzer, and when setting this, the number 3 in the display shown in Figure 2 (d) indicates the presence or absence of the camera shake buzzer. / indicates nothing,
The value "1" on the film counter indicates the presence of a buzzer, and the value "2" indicates no buzzer.

(iii) The relationship depending on the operation of the lens side switch is that which AF (autofocus) mode is selected when the switch provided on the lens side (described later) is operated. The modes are: ■ First, when the switch is not operated, (E4) One shot in the entire area using multiple points/spots (follow-up judgment after focusing) ■ When the switch is operated (E-2) Focus lock (E-3) spot AF (E-4) Continuous AP
t-3J numerical value r3. becomes r2J, and the blinking display “1”
” will be “1” to “3”, but this blinking display will be “1” to “3”.
"3" corresponds to the above "E-2" to rE-4, respectively (the diagram is omitted and will be explained in detail at the time of setting).

The selection numbers and functions are shown in Table 2.

In addition, in (i) to (II[) above, by turning on the card key once when setting the mode, (1) to (nl
) modes are selected in sequence, and by pressing the amplifier switch or down switch, the function (set value) in that mode is selected. Modes (1) to (II[), respectively.
and functions can be set cyclically.

(I [) Program card: As a program card, you can set the shooting scene and determine the AF mode (continuous/one shot/lll distance!IJA) AE shutter speed and aperture according to the situation of the scene or subject. It was created for the purpose of performing the shadows according to the scene (details will be described later).

(I[l) Function card: (3-1) H/S card ((Highlight/Shadow)
card) This card makes white objects whiter and black objects darker, and overshoots the exposure value obtained by the camera by a certain value (+
2.0) (highlight), under (-2゜0)
(Shadow), and insert this card (H
/S selection) and the operation of the AH rotor switch.

(3-2) AP bracket card This card allows you to adjust the exposure obtained with the camera to
Exposure can be performed by shifting 0.3, 0, 5, and 1 steps toward the underside (details will be described later).

(3-3) Auto-shift card This card attempts to change the scene effect (depth or speed) by changing the combination of aperture value and shutter speed with respect to the exposure value.

(3-4) By driving the focusing lens during deformation card exposure,
This produces a soft focus effect or an inter-exposure zoom effect.

(TV) Data memory card: This is used to store shooting data, including: ・Film counter ・Control aperture value ・Control shutter speed ・Exposure compensation value ・AE mode ・Lens information (focal length and aperture FNO) ・Film sensitivity Data can be stored in memory, and these data can be viewed using the LCD display on the camera body (details will be described later).

Next, the operation of the camera is explained by the microcomputer (C
) will be explained based on the flowchart, and each part will be explained in detail as necessary.

When the battery (E) is installed, the battery installation switch (SR1
) becomes OFF, rL is applied to the terminal (Rε), and “
When a signal that changes to the "H" level is input and turns on the DC/DCC/formater, the built-in clock starts oscillating and the IC card (C
A clock is also sent to D) from the microcomputer (μC).

In addition, at the time of interrupt, DC/DCC/expression-ta is ON.

And the start of the clock is done automatically by a hard circuit. Next, the microcomputer (μC) is shown in Figure 3 (RESET
) routine.

First, the microcomputer (μC) prohibits all interruptions to this flow (11100) and sets all output terminals other than the DC/DC converter control (PWO) to the "L" level (11105). In addition, the flags in RAM [Table 8 (
(described later)] and all RAM (registers) are reset (I110), thereby setting the exposure mode to P mode.

Spot/multi-point AF is set as multi-point AF mode, single shooting (S)/continuous shooting (C) is set as single shooting (S), mode in which no exposure compensation is performed, and others are set.

Next, in step (1115), the number of films (J) and film sensitivity (Sv) stored in the E"FROM are read out and transferred to a predetermined RAM. After that, the main switch (SN) is in the ON state. (11120). If the main switch is in the OFF state, (rPa = 'HJ), step (+
1125) and turn the power supply transistors (T, l) to O.
FF (4=rLJ) and performs data communication (Vl) of serial data with the card.

Here, serial data communication will be briefly explained. A serial communication command sends a signal to the other party to start data transfer (in the case of a card, C3CD-
=rHJ'), followed by the serial clock for transfer (
SCK) is output from the camera. The output side (camera or other party) outputs one bit of data in synchronization with the rising edge of this clock, and the input side (the other party or camera) inputs one bit of data in synchronization with the falling edge of the clock. By repeating this eight times (8 bits), one data transfer is completed, and by repeating this as many times as necessary, the necessary data can be obtained. Data communication with the lens (LE) 9 Data communication with the display control circuit (DISPC)
The same applies to data communication with the sub-flash device (ST).

Here, the data communication (Vl) with the above IC card is
It is shown and explained in Figure (f). In this communication, first the terminal (C
5CD) as rH, and requests communication (1270).

Next, data indicating data communication (νI) is set, the camera is set on the output side, and data communication of data indicating communication (Vl) is performed (I272, ~1
1277), when this is completed, next set the camera on the input side, wait for data to be set on the IC card side (I280.11282), perform data communication (
1285), and after inputting the data, the terminal (CSCD) is set to "L" to indicate the end of communication (1286). From the data input in this way, the camera's microcontroller (μC)
It is determined whether or not it is safe to sleeve (stop) the camera.
D) the lock and voltage required for the operation of the IC card (
(Van), these clocks and voltages are not sent during the operation of the IC card (when the camera sleeves, the clock stops and the voltage drops), and the IC card's microcontroller (IC3) This is to prevent this from happening, since predetermined signal processing (writing control to E''FROM) cannot be executed.

Returning to FIG. 3, the determination described above in step (1135),
In other words, the microcomputer (PC) in the power source determines whether it is allowed to sleep or not based on the input data, and if it is allowed to sleep at this point, it allows all interrupts in step (It140) and sleeps. do. This sleeve is used to stop the clock and turn off the DC/DCC/actuator in a hardware manner. If sleeve is not possible, step (1)
145), wait 30m5ec, then step (11130)
) and repeat the same process.

Next, an explanation will be given of an interrupt (INT) caused by turning the main switch (I8) ON or OFF.

First, it is determined in step (1147) whether or not the interrupt is due to the ON of the switch (SN), and if the interrupt is not due to the ON (, IPh = 'HJ), (INTl
) interrupts (1240), set display data (all lights off at this time) (11245), communicate data with the display microcomputer of the display control circuit (DISPC) at step (1250), and step (1125) Proceed to and perform the same processing as above. Through data communication, the display microcomputer inputs data to turn off all lights, thereby turning off all data (see Fig. 2(e)). Note that control of the display microcomputer will be described later.

On the other hand, in step (4147) the main switch (STI)
) is ON, in step (11150) the interrupt of CINT, ) is enabled, and in the next step (+11
Display data is set (standby display) in step 55), and data is exchanged with the display microcomputer in step 1160. Through this data communication, the display microcomputer performs the display shown in Fig. 2). In this second figure), the P mode is selected as the E mode, and it is shown that there is no exposure compensation, single shot mode, multi-point distance measurement, card function ON, and the number of films is 5.

Next, the camera's microcomputer (μC) has a terminal (IPs) of
Is it at “L” level (switch SEMI 5tus+
It is determined in step (1170) whether any one of SCD+5cos+Sl is ON), and if it is not at the "L" level, the process proceeds to step (11125), where the sleeve is controlled as described above. r L J level,
Proceed to step (#180), set a flag (OFF) to hold the power for 5 seconds, and execute the subroutine (S, ON) to be described later (1190).Next, the terminal (IF5) is set to " Determine whether the level is “L” (1
1200), step (1200) if r L J level
After setting the card request signal (DSPREQ) to O in step 03), the process proceeds to step (11180), and step (a180)
) and (#190) are repeated. rl-, if the level is not (that is, if none of the above five switches are operated), the process proceeds to step (1205), determines whether or not the power hold flag (OFF) is set, and sets it. If so, reset and start the power hold timer in step (11215), and proceed to the next step (11215).
At step 1220), the flag (OFF) is reset and the process proceeds to step (1235). Even when the power hold flag (OFF) is not set, the process proceeds to step (11235), and it is determined whether there is a signal requesting repeating the S, ON loop from the IC card (CD), and if there is, the process proceeds to step (11235). returns to step (#190). This happens when the display by the display microcomputer is controlled based on data from the IC card, such as during data setting, and even though the user wants to see the display, the camera's power supply is turned off for 5 seconds. This is done to prevent the display from automatically changing to standby when the hold is terminated, making the display inconvenient for use. If there is no repeat request, step (112
37), it is determined whether or not the timer has elapsed for 5 seconds.

If the elapsed time has elapsed, the process advances to step (11150), from standby display to sleeve control, and on the other hand, if the elapsed time has not elapsed, the flow from (S, ON) in step (11190) is repeated.

When an IC card (CD) is installed in the camera, in step (11172) a display request signal (
DSPREQ) is set in step (#172), the flow proceeds to step (11180) and subsequent steps.

Next, the routine (Sl) for controlling photometry, AP, and display will be explained with reference to FIG.

First, (INTI) interrupts for this flow are prohibited (11400). This is because if the third interrupt (INTI) occurs during the main control, the control operation will not proceed further. Next, (+1405) is the microcontroller (μ
By setting the s=child (pw) of C) to "H" level and applying a low level to the base of the PNP transistor (Try) via the inverter (IN, ), the transistor (Try) is turned ONL and the photometry circuit. (LM), AF circuit (
AFct), etc. Next, the lens circuit (LE
) to input information specific to the interchangeable lens (1410).

This is shown in FIG. 10 and explained. First, the terminal (C5L
[RH, level 1600), perform serial communication as many times as necessary to input information from the lens (#6
05), the circuit inside the lens is shown and explained in Fig. 4(a).The clock input from the camera is counted by the decoder (2) and an address signal is created. At this time, when the predetermined address is reached, the lens data changes due to zooming, so the focal length is detected by the encoder (3) that detects the focal length, and the address circuit (5)
The address is changed depending on the focal length mentioned above, and predetermined data is output to the camera body. Switch (So
) is a lens side switch (
(Refer to FIG. 4(b)), and since this also requires changing the data, the address is changed.

The address thus set is output to the ROM (6). ROM (6) outputs data based on the specified address. This output is converted into a serial signal by a parallel-to-serial converter circuit (7) and is applied to the camera body.

Next, lens information will be explained. As shown in Table 11, the lens information sent to the camera body includes the lens attachment signal, the lens's open aperture value (8VO) + the lens's maximum aperture value (^Vaax), the amount of aperture from ω to near, Focal length 9 report, (lens drive amount/defocus amount) conversion coefficient, ON/OFF of the above lens side switch (SQ),
Indicates whether or not to drive the lens (LOK)
etc., and is input to the RAM at the address in the body shown in the table. This signal (LOK) changes from rl to "0" in response to a situation in which AF cannot be performed. The camera body receives this signal and stops the motor.

On the other hand, on the lens (10) side, there is a ROM as shown in Table 9.
and address structure. (A) and (B) store two similar data in the same ROM that differ only in S, relationship, and LOK relationship.

Conventionally, lens information has been relatively small, and a plurality of types of lens information with the same function can be stored in one ROM, and the lens information can be switched depending on the lens used. In this case, the amount of information per lens is fixed, and the required ROM is determined accordingly. In such a case, creating (increasing) new data indicating that the switch is ON or OFF requires two additional steps when data is changed by changing the address in the ROM according to the ON or OFF of the switch. Byte (011,0F
F) is required. If there is room in the ROM, 06M, 08. as shown in Table 10. Increase the 2 bytes and turn off the lens side switch (So).
Change the address according to ON and 06. , 08) I. However, when there is no such margin, as shown in Table 9, the ROM provided for multiple types (in this example, (B)) is turned on.
.

Assume that the data other than the data changed by OFF is the same,
This can be done by selecting (A) or (B) depending on whether the switch is OFF or ON. However, in this case, this RO
There are fewer types of lenses that can be used for M. For the lenses in Table 9, if the lens side switch (S, ) is OFF, 06. , 0fi, 08i, or vice versa, 16M and 17H (b.

= Sail AF motor stop) is now sent. Note that (XXX) in the address indicates address data that changes depending on the amount of extension of the zoom or focusing lens, and is input from the encoders (3) and (4).

The signal (LOX) in the lens indicates that the lens is not for focus detection. Upon receiving this signal, the camera body side prohibits AF operation (lens drive) and performs only focus detection operation. For example, when a zoom lens with macro is set to macro mode, AF operation is prohibited and address 07. (Table 10), 08)1 (Table 9), and when not in macro mode, data at addresses 09□ (Table 10) and 07N (Table 9) are sent as AF operation permission.

Now, a lens with the function of the above switch (So),
Even when attached to an old camera that does not read this bit (because it is new data), this lens side switch (S,)
(However, the latter two of the functions changed by the IC card - focus lock, continuous, spot AF selection - cannot be done because the rC card is not an old camera. (Only focus lock is possible), and if the LOK signal is disabled from AF in response to the above switch (So) being turned on, AF operation will be prohibited and only focus detection will be performed, assuming that the old camera is a lens that cannot perform AF. . To do this, use the above switch (
B in Table 9 when S, ) is turned on.

In Table 10, 07. , 08. , and the switch (So
) is OFF, A in Table 9 and 06 in Table 10.
．． l and 07M.

09H may be changed respectively.

Regarding the control on the camera side, it is only necessary to determine whether or not to inhibit AF when reading the lens data, and to control whether or not to inhibit AF, so a description thereof with reference to the drawings will be omitted.

After entering the lens information described above, the terminal (C3
LE) is set to "L" level and returns (1610).

Returning to FIG. 6, the microcomputer (μC) continues to perform data communication (1) with the card at step (a413).

In this data communication (1), the camera switch status,
Sends AE mode and control data from the camera to the IC card.

The contents are shown in the CA-C0 table (see the first communication column), and data communication (I) is shown in FIG. 5 (al).

The method of communication is the data communication (Vl
), the difference is that data is communicated (1
), and the subsequent data communication (SIO) is performed three times, and the camera side is the output side in this communication as well. Note that the use of these data will be described later.

Next, the microcomputer (μC) inputs electronic flash device information from the electronic flash device (ST) (1415). The information includes a guide number (GN) that indicates the amount of light emitted.

There are two pieces of information indicating the switch 0N10FF. Here, the electronic flash device used in this example will be explained.

FIG. 8(a) shows a circuit diagram of the electronic flash device.

(DI) is a capacitor for preventing reverse charging, and (C,) is a capacitor with a large capacity for back amplifier.

(μC3) is a microcomputer that performs sequence control, (T
M) is a detection circuit that detects the width of a pulse indicating the type of serial communication from the camera body and outputs a signal indicating the type of communication to the microcomputer (PCI). (D/D) is a boost circuit that converts low voltage to high voltage, and is powered by a microcontroller (μC3).
(OX)
is a rectifier diode, (CM) is a main capacitor + that stores energy from the booster circuit, (LEC) is a light emission control circuit that controls light emission, and (DISP) is a display circuit, as shown in Figure 8 etc. This indicates whether or not the power is on (status B where boosting of voltage and data communication with the camera can be performed by a signal). When it is on, "ON" is displayed, and when it is off, nothing is displayed. (Ilo C
G) is an input/output switching circuit that switches input/output for communication with the camera. (S, 4) is a normally open bush switch that turns the power ON and OFF; when the power is ON, it is switched to F, and when the power is F, it is switched to ON. (MON
T) is a circuit that monitors the amount of light emission itself, and when it comes to the amount of light emission of 2 of the total light emission, it is rH.

Output a signal. (Lo) is a normally open switch that switches the light emission amount between 2 and full light emission.
Switches to 2□ full light emission every time N is pressed.

A microcomputer (μ) that controls the sequence of this electronic flash device
A flowchart of step C) is shown and explained from FIG. 8(c) onwards.

When the above power switch (SN) is operated, the microcomputer (
A signal that changes from "H" (the terminal is pulled up internally) to "L" is manually input to the microcontroller (μC3).
3) is interrupted, and the microcomputer (μCS) executes the flowchart shown in FIG. 8(c). In this flowchart, first a flag (O
NF) is set (ISTI)
O), when set (ONF 1), resets this flag and sets the terminal (OPZ) to "L" level to stop boosting, turns off the ON display and goes to sleep (
IIST20-m5T40). When the above flag (ONF) is not set, the flag (ONF) is set as an operation by turning the power from OFF to ON, and the terminal (OPZ
) as the rH level and start boosting the voltage (#5T50.
l5T60). Then, it displays ON (l5T70
)0 Next, reset the timer and start it.ll5T80
), wait for 5 minutes to elapse (IIST90), and when 5 minutes have elapsed, proceed to (IST20), perform the same control as turning off the power, and go to sleep.

Next, the interrupt processing (INT) performed when the camera requests data communication for sending data from the electronic flash device to the camera is shown in FIG. 8(d) and will be described. First, when a rH signal with a pulse width (T, I) is sent from the camera, the detection circuit (TM) detects this time ('r
+) and outputs a signal that changes from the "L" level to the (lNT, ) terminal of the microcomputer (μC3). The microcontroller (μC3) is 1. By inputting this change signal, the interrupt processing of 口NT, ) is performed.

Note that the terminal (φl) is always working when the battery is installed, and the microcontroller (μC3) is connected via this terminal (φ1).
A clock is sent from the timer detection circuit (TM) to the timer detection circuit (TM).

The microcomputer (μC3) first resets the timer by setting the terminal (OPI) to the rHj level, and sets all outputs of the timer to the "LJ level, and does not respond to any signal input to the timer (IIsTllo). ), and it is determined in step (IST120) whether or not the flag (ONF) indicating power ON is set, and if it is set, the data communication bit (STS, ) is set to r
To set it to lJ (l5T130), set the terminal (OP2) to rH level in step (IST140) to start boosting, and proceed to step (IST180).On the other hand, if it is not set, reset the above bit (STS +). Proceed to step (IS7180) (l5T13
0). If the signal for canceling the guide number restriction is input from the camera, the process proceeds to step (llsT183), and control for canceling the canid number restriction is performed. When the signal is not input, the guide number limit switch (L
o) is turned on, and if it is turned on (IP/"L"), a flag (LOLM) indicating this restriction is set.
TF) is sent (l5T1
30.1lsT182).

Reset this when it is set and terminal (Op,
) is set to "L" level to prohibit the light emission stop signal from the monitor circuit (MON?) from being input to the light emission control circuit (llsT183.ll5T184).

If the flag (LOLMTF) is not set, it is set, the terminal (OP4) is set to rH'' level to permit light emission limitation, and communication data (STS3) is set (15T130. to 115T187). When the switch (LO) is not turned on, the step (llsT
190).

Note that this step (llsT190) requires step (l
5T130) and (IS7187).

In step (IST190), the electronic flash device (ST)
As the output side, the terminal (1/QC) is set to the "H" level in order to indicate the output to the input/output switching circuit (IloCG).

The above-mentioned beep) (STS, ) signal and electronic flash device (ST
) (IST200), wait for the data communication clock (SCK) to be sent from the camera body, and then wait for the clock (SIJ) to be sent. In synchronization with this, communication is controlled to output data through the terminals (S,, t) and the input/output switching circuit (IloCC) (lsT210).
. When this is completed, the terminal (OPI) is set to the "L" level (l5T220), the above-mentioned timer is reset, and the pulse width from the camera can be detected at any time.

When a signal with a pulse width (T2) is input from the camera, the timer (TM) sets the (FC) terminal to the "H" level.

The microcomputer (μCS) manually inputs this to the terminal (IP+),
The process proceeds from step (IIST230) to (IIST240).

In the step (IIST240), the terminal (OPI) is set to the rH level as described above, and the terminal (,1/QC) indicating input/output control is set to the "L" level (IST25).
0), the electronic flash device is controlled to be on the input side. Then, camera data sent from the camera in synchronization with the communication clock (SCK) is input to the terminal (S I N) through the input/output circuit (IloCC), and read into a predetermined register (RAM) ( IIST260.ll
5T270), and the terminal (OP I ) is set to the "L" level to enable reception of pulses from the camera (IST280). As input data, the presence/absence of light emission, the presence/absence of forced OFF of the power supply, the presence/absence of forced ON of the power supply, and the presence/absence of light emission restriction release are input.

In step (IST290), it is determined whether or not the power is forced on based on the input data. If it is not forced ON, proceed to (llsT330). On the other hand, when indicating forced ON, the flag (ONF) indicating the power BoN is set, the terminal (OP is set to r) (J level, voltage boosting is started, ON is displayed, and the process proceeds to step (IST330) (II
ST300-11sT320).

In step (llsT330), it is determined whether or not the power is forcibly turned off based on data from the camera. Force O
When it is FF, the microcontroller (μC3) turns off the ON display and
The flag (ON) indicating power OFF is reset, and the terminal (OP) is set to "L" level to stop boosting and go to sleep (l5T420 to 1lsT440).On the other hand, if it is not forced OFF, proceed to step (l5T340),
The timer is reset and started, and it is determined whether 5 minutes have elapsed (llsT350). When 5 minutes have elapsed, the process advances to step (l5T420) and the same control as for forced OFF is performed. If 5 minutes have not elapsed, it is determined whether exposure control has been entered (15T360), and if exposure control has not been entered, the process returns to step (llsT350) and repeats steps (llsT350) and (15T360).
The signal from the camera indicating that exposure control has entered is
This is a signal with a pulse width (T, ) input through the terminal (STY). The detection circuit (TM) detects this and sets the terminal (EC) to rH level. When this signal is input, the microcomputer (μC3) resets and starts the timer (l5T370), and when indicating the light emission, the terminal (
OP3) is set to r)('' level (llsT400), and when no light is emitted, the terminal (OP3) is set to rL'' level.
Proceed to step (l5T412) respectively, this step (
IIST412) waits for the time (50 m5 ec) from turning on the switch (S2) until the shutter's front curtain completes travel +α (emission time of the electronic flash device), and then connects the terminal (O
P + ) is set to "L" (1lsT415), so that even if an interrupt pulse from the camera comes in, it can be processed, and the process proceeds to the switch (#5T80) in FIG. 8(c).

In the circuit of FIG. 8(a), the AND circuit (ANDI) is designed to operate only during the exposure control operation, and is adapted to receive a dimming completion signal. The AND circuit determines whether or not to permit the light emission signal sent from the camera.Based on the signal from the camera, the microcontroller (μC3) sets the terminal (OP3) to "HJ/'LJ."

Next, the interface circuit is shown in FIG. 9 and will be explained.

A signal (C3ST) indicating the type of data communication to the electronic flash device (ST) (the pulse width changes depending on the type).

The communication clock (to SC) and the signal indicating the completion of dimming are sent to the electronic flash device (ST) through an OR circuit (OR).
supplied to When the first curtain of the shutter completes running,
The contact (χ) is ON (this is the charging operation during winding)
(FF), and a high level "H" signal is output from the terminal (XT).

(IloCG) is an input/output switching circuit.
The direction of data communication (input or output) to the electronic flash device (ST) is switched according to the signal from the electronic flash device (ST).

In Fig. 11(a), the camera's microcomputer (μC) outputs a pulse with a width of a certain period (1,) to the terminal (C5FL) in order to communicate data with the electronic flash device (input on the camera side). Set the /QC terminal to the "FL" level, wait for the electronic flash device to set data with the input/output circuit on the input side, and input data once by serial communication (116
50-11655).

Return to Figure 6 and step the AF mode (1141?)
Determine. The subroutine for determining the mode of this meter is the seventh one.
First, from the lens information, it is determined whether or not the above-mentioned lens side switch (So) is turned on (114000). Reset/Start Special <(1
start from 0 seconds), and set the flag (starting from 0 seconds) at step (114005)
OFF), and determine whether the card function is ON or OFF based on the 0N10FF signal of the card function input through data communication (■) (described later) (#4゜0
7).

If the card function is OFF, the EzFR inside the camera
Based on the OM information, the AF is controlled in the previously stored AF mode.

On the other hand, if the card function is ON, it is determined whether or not it is a custom card, and if it is not a custom card, the AF mode is controlled based on the information in the E"FROM inside the camera.

If it is a custom card, the AF set in the card entered from the card during data communication (IV) (described later)
AF control is performed based on the information.

The control is the same when determining the AF mode with the E"PROM in the camera, and when determining the AF mode with the E"FROM in the custom card, only the data used is different, so the explanation will be based on the E"PROM in the camera. ”This is done only when deciding the AP mode using FROM.

The microcomputer (μC) reads information from the E"FROM in the camera and determines whether the AP mode is the focus lock mode or not in step (114010).

Here, in the focus lock mode, the focus lock bit (Fbin) is set by the switch (S,).
is set, the bit (Fbl3) indicating the auxiliary light mode is reset, and furthermore, when the tracking mode is displayed, the flag (following F) is reset to turn off the display (14020 to 14030).

This is because in the focus lock mode, since AP operation is prohibited, there is no need for subsequent AP operation, so the emission of the auxiliary light required for this is prohibited, and the power is dissipated.

The tracking display is also wasteful since the lens is not driven and the tracking operation cannot be performed after the focus is locked, so the tracking flag is reset and turned off.

Next, determine whether the AP mode is spot AF (
14035), this step (#4035) is also reached when the focus lock mode is not set in the above step (414010). If it is a spot AP, it is determined in step (14036) whether or not the flag (SQONF) indicating that the switch (S,) is turned on and this flow has passed for the first time is set, and whether or not it is set. If not, proceed to step (14037) and pick the contents of the bit (Fbt) in order to memorize the multi-point/spot mode before the switch (SQ) was turned on.
FblS), reset the above flag (SQONF) #4038), set spot mode in step (!14040), Fbt=1), step (11404)
Proceed to 5). Also, if the flag (SQONF) is set, skip steps (14037) and proceed to step (14045), or proceed to step (11404).
In step 5), it is determined whether or not it is continuous AF, and if it is continuous AF, a bit indicating this (F
bs.1) is set (114050), the bit (Fbl3) indicating the auxiliary light is reset in step (#4055), and the process returns. It is now assumed that the auxiliary light mode for the continuous AP is prohibited in consideration of power saving. If the focal point #A section is continuous and still, and the auxiliary light is emitted every time focus detection (integration) is performed, the battery that is the power source will be exhausted quickly, and the number of films that can be photographed will decrease. This is because If it is not a continuous AP in step (114045), return immediately. In addition, in the flow when the switch (So) is on, the IC card can be used with focus lock, spot AF, or continuous AP.
For example, if the focus is locked in step (14010), NO will be obtained in both steps (114035) and (14045).

・In the above step (14000), press the switch on the lens side (
If So) is OFF, the process advances to step (14060). In this step (114060), the bit (Fbin) indicating the focus lock function is reset.

The spot AP is selected by the switch (S,), and it is determined whether the control is to be performed immediately after the switch (S,) is turned off by whether or not the flag (SQONF) is set (114065). If so, by transferring the contents of the bit (bus) to the bit (bt), the multiple points/spots before being selected by the spot AP by the switch (S,) are obtained (14070). Then, the flag (SQONF) is reset and step (1408
Proceed to 7). When the flag (SQONF) is not set in step (14065), it is determined whether the IC card (close-up card) is a forced spot 8F, and if it is a forced spot AP, the bit (Fbz) is set to indicate the spot AP. Set the step (11408
Proceed to 7). If it is not forced spot AF, step (
#4085) and proceeds to step (14087). Next, in step (14087), it is determined whether it is forced continuous AF based on the signal input from the card (sports card), and if it is forced continuous AP, a bit (Fb,) indicating this is determined.
bit (Fbl) to disable auxiliary light mode by setting
3) and return (114088.11)
4089), when not strong elf continuous,
The bit (Fbl) is reset (#4090) to indicate one-shot AP, and the process returns.

After determining the above F mode, the microcomputer (μC) performs card data communication (n) with the IC card (CD) in order to determine the type of the IC card (CD) (#420
). Regarding this card data communication (n), Fig. 5(b)
Explain with reference to.

This data communication first sends data indicating data communication (II) from the camera to the card (one serial communication) (#320 to 1327), and then the camera becomes the input side (m330) and waits (m332). L, perform serial communication 10 times to obtain IO byte data (m3
35).

To briefly explain the contents of this data, the first 4 bytes are data for controlling individual functions of the camera depending on the card (details will be described later).

Next 5th. The 6th byte is a missing byte, and the 7th byte is a missing byte. During the subsequent data communication (■) (camera input), the 8th hide
This specifies the number of data to be output and the start address, and is called the ``direct specification address type.'' Next 9th. The 10th byte is used to input the necessary data by specifying the group of data to be output to communication (■) and communication (IV). In particular, the 9th byte is for communication (■)
), the 10th byte indicates communication (IV), and this is called a "group designation type". These two designation methods are specified by the third byte bit (b) of the four bytes above.
In step 6), data communication is performed by switching between cards and sending only the necessary data, thereby efficiently reducing time. Then, returning to FIG. 6, it is determined whether or not the AF prohibition data input in communication (II) is set (1425). The terminal (Ips) indicates whether the start switch (S,) is turned on or not.
Judgment is made based on the level of (m427). When the above switch (Sl) is turned on (IP, "L" level), the AP is controlled (+1429) and the switch (S
, ) sets the flag (S, 0NF) indicating ON of (
m430).

When the silence prohibition data is set based on the data input from the card in communication (II), or when self-timekeeping is in progress, or when the switch (sl) is set to 0FF (rP
When s = 'HJ level), a signal to stop the AP drive motor is output to the lens control circuit (LECN) to stop the lens drive in order to prohibit the unauthorized operation (11431), AI' Please set a flag (AFNF) to indicate that 1435) is not being performed.
(St) (7) Reset the flag (S, 0NF) indicating ON (1437). When the data setting mode is set like this, AF! By prohibiting II control and giving priority to data setting, AF operation is prevented from being performed even if the AP start switch (Sl) is accidentally pressed during data setting. Note that when the flag (AFNF) is set, the signal (AEFLAG b+) indicating that image magnification data cannot be used is
0" and outputs when data is communicated to the card (I[[).

Here, regarding the above-mentioned AP control, FIGS. 12(a) to 1
The flowchart shown in FIG. 2(5) will be explained with reference to FIG. 14, which shows the focus detection range in one shadow screen. At that time, the photometry range will also be explained.

First, in FIG. 14, an outer rectangle 021 indicates a photographing screen. Among them, (LM,) to (LM4) indicate the photometry range, and (AFL) to (AF,) indicate the focus detection range.

Regarding the focus detection range, the camera has a spot/focus detection range.
Multi-point AP can be switched; when spot AF is selected, AP is performed based on subject information in the focus detection range (AFL), and when multi-point AF is selected, the above three ranges (AP , ) to (AFt), AP is performed so that the subject closest to the camera is brought into focus. Hereinafter, (AFL) is the first island, (AF
, ) will be called the second island, and (AF,) will be called the third island.

To explain the AF control shown in the flowchart of FIG. 12(a), first, in order to detect whether the AP start switch (Sl) is pressed for the first time, a flag (S, 0NF) is determined and set. If not, it is assumed that it is pressed for the first time, and the flag indicating focus (AFEF), the flag indicating low contrast scan inhibition (LSIHF), and the flag indicating the beginning of low contrast scan (LSFI) are reset (11702, 11703, 1704) and proceeds to step (m705).The low contrast scan and these flags will be described later. When set, the process directly proceeds to steps (m705) to (1704) without passing through step (1702). Then, it is determined whether the lens is attached based on the input signal from the lens (1705), and step (11705)
), if the lens is not attached, a flag (AFNF) indicating that AP is not being performed is set and the process returns (11800).

If a lens is attached, forced AF mode (even if manual focus adjustment is selected by operation) will force AF mode.
mode and enables lens drive by motor)
Determine whether or not is selected by the card (11
707), step (1171) if it is forced AP mode.
1). On the other hand, if it is not the forced AP mode, check whether the focus adjustment mode is AP mode or M mode by checking the terminal (I).
P+. ) is determined by the level of #710), AP-
When the mode is t-1, it is determined by the bit (Fb+4) whether the focus lock mode is selected in the subf7 block (+1711). When in M mode,
In step (11798), disable the auxiliary light mode (F
b+2=0), after executing the manual focus subroutine (Miocus) in the next step (1799), a flag (AFNF) indicating that AP is not being performed
11800), and judge whether or not the focus is 17.
80), if it is in focus, set the flag (API!F) 1781), if it is not in focus, reset it (17B2
), return.

This manual focus subroutine is shown in Figure 12 (
As shown and explained in d), first, a flag (MFF) indicating manual focus is set, and integration control is performed to control integration and execute data dump.

In manual focus, a flag (AP) indicating the second island among the three islands in the AF area
2F), calculate the day focus amount (OF, ) of this island, and use this as the day focus amount,
Return (114100-114110).

The integral control subroutine in the above step (114101) is shown in FIG. 12(b) and will be explained first.
When the focus cannot be detected (LCONF=1) or when it is not in the auxiliary light mode (Fb13=o), the process proceeds to step (#4163) without emitting the auxiliary light (11415).
0,114155). When the focus is not detectable and the auxiliary light mode is activated, the light is emitted before the start of integration.
In order to emit light for a certain period of time, the terminal (OLD) is set at rH level for a certain period of time, and the process proceeds to step (114163) (114150 to #4160).

In step (114163), the feed amount (number of feed pulses), curran l-(CT), is read, and (CTI
) to the 0th order, and after the integration is finished, read the count (CT) again and set it as (CTC) (+1
4165゜薯4167), calculate the average of (CTI) and (C'h), input (dump) the data as (CT, 2), and return (114168.14170)
.

Returning to FIG. 12(a), if manual focus adjustment is not selected in step (1710) or forced AF mode is selected in step (1707), check whether focus lock mode is selected in step (#711). judge.

As a result of the determination in steps (11710) and (1711), if focus lock is selected by the switch (S,) in AP mode, the lens drive is stopped in step (1712) and whether or not the focus is focused is determined. Flag (AF
It is determined whether EF) is set (1713), and if it is set, the process proceeds to step (1F714), controls the M focus, and then returns to step (1780).
Proceed to.

If it has not been set, proceed to step (1799). Here, focus is determined by using the distance data of the subject at the time of focus ( This is because we want to determine the photometric value using the image magnification (used for image magnification).

In step (1710) of FIG. 12(a), it is determined that it is AP, and in the next step (1711), when the focus is not locked (Fb14.0), step (+17
15) indicates that AP is not being performed (AFN
F), and at the same time, a flag (MFF) indicating manual focus is reset in step (1717). The microcomputer (IC) controls the accumulation (integration) of the charge generated in the ranging CCD according to the amount of incident light, and after the integration is completed, the integrated value is converted into digital data and the data obtained is input (+1720). . Then step (+1
730) to detect whether it is a spot AP (F of function data
b2), and if it is spot AP (Fbt=1), the process advances to step (11735) to execute the spot 8F subroutine shown in FIG. 12(d). In this subroutine, a flag (AP2F) indicating that AF is being performed is set based on the second island, and the day focus amount (DF) of the second island is set based on the input data.
This is calculated as the day focus amount for lens driving (114102 to #4110).

On the other hand, when the multi-point AF-E mode is selected in step (11730) in FIG. 10(a), step (11730)
11740) and executes the normal F control subroutine shown in step 10 (C). At that time, 1. Second
．． The day focus amount (DF) of the third island is calculated, and among the above, the day focus amount for the subject closest to the camera is calculated (Squid 4200 to 14215).

The subroutine for determining the day focus amount is shown in FIG. If the object is closer to the camera than the focus position of the lens), it indicates a positive day focus amount, and its absolute value indicates the size of the day focus.To detect the subject closest to the camera, three islands are It is sufficient to detect the maximum (including positive and negative) day focus amount among the day focus amounts, and it is assumed that the main subject exists in the focus detection area.

In FIG. 12(f), the microcomputer (μC) first resets the flag indicating the island (APIF-AF3F), detects the largest day focus island, and converts the detected island day focus amount into the lens driving day focus amount. , the above flag (
081 Set AFIF-AP3F) and return
0-11865).

After calculating the day focus amount, it is checked in step (11745) of FIG. If it is low, focus detection is disabled) If focus detection is not possible, proceed to step (#747) to determine whether or not it was in the auxiliary light mode, and if it was in the auxiliary light mode, further focus detection is performed. Since it is useless to do so, set a flag (LCONF) indicating this ($752), reset a flag indicating the follow mode (described later) (#755), and return. In step (1747), if it is not the auxiliary light mode, the process proceeds to step (1757) to detect whether the brightness is low,
When the brightness is not low, it is useless to emit auxiliary light, so low contrast scan control is performed. Low contrast scanning refers to performing focus detection while driving the lens to search for a focus detectable area when focus cannot be detected.

To explain this as shown in FIG. 12 (5), it is determined whether a flag (LSIHF) indicating that a focus detectable area was not obtained even though low contrast scanning was performed is set (114400). . When it is set, it is useless to perform low contrast scan any more, so return. When it is not set, it is determined whether a signal indicating prohibition of low contrast scanning is input from the card (114405). If it is input, return without performing relow control scan. If it is not input, determine whether the flag (LSFI) indicating that this flow has been executed is set.
4410), If it is not set, please set it.14415), The flag indicating the feeding direction (FW
F) (14420), and the lens drive amount n is set to a positive value (K large) larger than the maximum lens extension amount (#4425) to drive the lens extension. When the flag (LSFI) is set, it is determined whether the lens has reached the extreme end of extension or the extreme end of extension (+14430), and if it has not come, return. If this occurs, stop the lens (14430), and determine whether or not it was extended before stopping (+144
40). In order to detect this extreme end, a hard timer (not shown) is working, and this hard timer is reset and started every time a pulse from the encoder is received.

When this timer has counted a certain period of time, the lens is determined to be in a state in which it cannot be driven, and the extreme end of extension or the end of retraction Wk is detected. And if it is a payout (
Fl=1) To reset this 14445), this time, to control the renormalization, set the lens drive amount to -(K large)
As (+14450), return. When the flag is not set, it is useless to perform low-contrast scanning any further even if both extension and retraction are performed, so a flag (LSIHF) is set to indicate this (#4455) and the process returns. And (+17
52), the process proceeds to step (11752), and the same processing as described above is performed.

On the other hand, if the brightness is low in step (#757) of FIG. 12(a), it is determined in step (1758) whether or not the mode is in which the auxiliary light from the card is prohibited, and if it is in the prohibited mode, the process proceeds to step (11752). Proceeding to prohibit AP based on auxiliary light emission, if the mode is not prohibited, the auxiliary light mode (Fb, !=1) is set in step (1760), and the process proceeds to step (11755).

Next, if the microcomputer (μC) is not unable to detect the focus,
Reset the flag (LCONF) (11762), determine whether or not it is in focus from the lens drive day focus amount in step (+1765), and if it is in focus, set the flag (AFEF) indicating the in-focus state (1767). ) and set the flag (AFEIF) and execute step (1755
).

If it is not in focus at step (1765), step (
+1775) to execute a subroutine for lens drive control, and then return. This subroutine is the 12th subroutine.
As shown in Figure (e), the flag (
Determine whether tracking F) is set (114
24B), switch (I4330) if in tracking mode.
). One-shot AP when the flag (tracking F) is not set (-Once in focus, subsequent lens driving is stopped, and focus detection may also be stopped at this time)
(11
4250), if one shot is silent (Fb, = 0), it is determined whether or not the flag (AF[!F) indicating focus is set or not, and if it is not focused,
Alternatively, in the case of a continuous meter (Fbl-1), the process proceeds to step (14340) via steps (neck 4330) and (I4335), and the lens drive is controlled. In step (114330), a flag indicating focus is set ( AFE
F) is reset, the lens drive amount is determined in step (114335), the lens is driven in step (+14340), and the process returns. Note that this step (114
340) is driven by a lens drive circuit (LECN
) is achieved by driving the lens by a value corresponding to the drive amount (N).

Fig. 12 (To explain the above-mentioned lens drive amount determination subroutine shown in the barrel, the microcomputer (μC) should determine whether the flag (following F) indicating the tracking mode is set or not (114341), and it is not set. Sometimes it advances to step (cloud 4345), and when the flag (following F) is set, it moves to the day focus I (DF) obtained this time.
) is set to ([1Fl) (gi 4342), and the day focus amount 0F=OF+(DF-DFt) (
Leaf! (DP
I) as (Dh) and proceed to step (44345),
In step (14345), the lens drive amount (N) is determined by multiplying the determined day focus amount by a value. Read the number of lens extension pulses at that time and set it as (C70), calculate ΔCT as the amount of movement of the lens from the center of integration using ΔCT3 CT + t, subtract ΔCT from the above N to find the lens drive amount at the end of the calculation, and return. Do (114
346) ~ (11434B).

In step (14255), when the flag (AF[!F) indicating focus is set, proceed to step (14257), and force one-shot AP
It determines whether or not it is, and returns immediately if forced one-shot AF is used. This prohibits follow-up mode during forced one-shot AP. When the tracking mode is the normal one-shot AF mode that is not prohibited, it is determined whether the flag (AFEIF) indicating when the focus is achieved from an out-of-focus state is set (I4260). First, in step (14265), the preparation process for tracking determination (determining whether the subject is moving) resets the registers (DF) and (DFa) that memorize the day focus amount, and stores the same registers. The obtained day focus amount (DF) is stored in (DF l') (14270), and the variable (
N) should be set to O (4275), above (AFEI
F) is reset (14280) and returns.

In step (14260), after focusing (AFEF
1) When performing focus detection from the second time onwards (AFEIF
0), proceeds to step (14285), and sequentially stores the day focus amount in the register that stores the day focus amount [The contents of the register (Dh) are stored in the register (DF
:+), the contents of the register (OF +) are transferred to the register (OF +).
apz), and memorize the obtained day focus amount (OF) in the register (DPI)] Add 1 to the variable (N), and check if this (N) is 2 or more, that is, focus detection has been performed three times after focusing. If it is within 2 times, the lens is not driven and returns (#4285 to #4305).

In step (#4305), if it has been performed three or more times (N22), proceed to step (14310),
The day focus amount is calculated from the average of the past three day focus amounts (the average of the contents stored in the register), and in the next step (114315) it is determined whether this value is greater than or equal to a predetermined value. This means that it has been determined in the past three focus detections whether the subject is moving at a predetermined speed (on the image plane). When the value is less than the predetermined value, it is assumed that the subject is not moving, and the tracking flag is reset (143).
20), Return.

This flag is used for display (infinder). On the other hand, when the day focus amount is more than a predetermined value,
When the subject is moving, the flag (
Set tracking F) (+14325), calculate the amount of lens drive, drive the lens, and return (14330).
．． 114340).

Here, the display in the finder regarding focus detection will be explained based on the display in the finder shown in FIG. When it is set based on F), the green LED lights up, and when it is not set (focus F.0), it turns off. Further, when the focus cannot be detected (LCONF=1), the red LED is blinked, and when it is not (LCONF, O), it is turned off. (102) indicates the focus detection area, and when the internal area (102) is displayed, indicates the spot AP,
When only the outer region (102b) is used, multi-point distance measurement is shown. (103) is displayed when the mode for continuous AF or tracking mode is indicated (following F=1), and is turned off when the mode is not continuous AF or tracking mode. (104) rAF/MJ is AF display in AF mode (AFNF=0), and in other cases (A
FNF=1) performs M display. In addition, the AP switch (S,
) is OFF (S, 0FF=0), the display in the viewfinder is turned off.

Returning to FIG. 6 again, the microcomputer (μC) controls changes to various data by operating various key switches (11440).

This is illustrated and explained in FIG. 15. Based on the data input from the card, whether or not the display control mode (data setting) is in progress can be determined from the data input in communication (II).
5) If the mode is display control mode from the card (during data setting), return.

When not in display control mode, a flag (SLP) indicating that time is being measured in self mode is set to indicate that time is being measured in self mode.
) is set (11907)
. Return when the cent is. If not set, it is determined whether the exposure mode change switch (S, ) is turned on (1910), and if it is turned on, the process proceeds to the change subroutine (#915) and returns (details will be described later). The above switch (S,) is O
If not, the process advances to step (11920) to determine whether the function change switch (SFUN) is turned on. And this switch (SFIIN)
is ON, the subroutine for that change (1
925).

Here, the above two subroutines are shown and explained in FIGS. 16 and 18, respectively. First, the exposure mode is changed.
Each time the up switch (Sup) is turned on, the process progresses cyclically from P-4A → S → M and then back to P. Each time the down switch (S, dn) is turned on, the process progresses cyclically. It progresses sequentially like P←A-5←M, and after P, it goes to M, and so on, cyclically in the opposite direction to the above-mentioned up direction. The exposure mode is changed according to the data set by the IC card (CD), and unselected modes are skipped.

To explain this with reference to FIG.
) is 0N1 of the card function input in data communication (II)
Based on the 0FF signal, it is determined whether the card function is ON or not (itooo). If it is not ON, the camera enters control. If it is ON, it is determined whether it is a custom card or not (11001), and if it is not a custom card, it is determined in step (111002) whether or not a forced P mode signal is input from the camera, and if it is forced P mode, it is determined whether the card is a custom card or not.
As the mode (11003), if it is not the 0 forced mode that returns, it enters the in-camera control that determines the AE mode within the settable AE modes stored in E''FROM in the camera.On the other hand, if it is a custom card ,
Data sent through data communication (IV) (EEC5T
M, , 0.1), the AE mode is determined among the configurable AE modes stored in the card.

The only difference in the selection of P, A, S, and M modes is the data to be selected (camera E"FROM, card data), and the selection control is exactly the same, so the explanation will be based on the E" in the camera.
Control is performed only using FROM data. The microcomputer (μC) determines whether the up switch (Sup) - is turned on in step (+11004). If it is not turned on, the process proceeds to step (11055); if it is turned on, it proceeds to step (#1005). )
Proceed to (Fb.)( of the RAM function data (Fbn).
Fb, ) to determine whether P mode is currently selected as the control exposure mode, and if so, proceed to step [010) and check internal E'' to determine whether A mode is selectable. Judgment is made by FROM.
If selected, change the exposure mode from P to A.
015), functional data (Fba, Fb,) (0,0
) to (0,1) and return (#1015)
. In step (11010), when it is determined that A mode is disabled, step (11010)
11025), it is determined whether the S mode is selected, and if the S mode is not selected, the process further advances to step (11040) to check whether the M mode is selected, and the selection is sequentially made possible. It searches for a mode, and if there is a mode that is selectable, it is set. Then, when the A, S, and M modes are not selectable, that is, when only the P mode is selectable, the P mode is selected (11050).

Similarly, when A mode is selected as the full control exposure mode (pbo, pb+=0.1), it is determined whether S mode is selectable, and when it is not selectable, M mode is selected. The exposure mode is determined to be selectable, the exposure mode is changed to the selectable mode, the bits (pbo) and (Fbl) are changed, and the process returns (111020 to 1030).

Now, when S mode is selected as the control exposure mode (pba, Fbl-1, 1), it is determined whether M mode is selected, and if it is selected, it is set as M mode, and if it is not selected, it is set as M mode. returns to P mode (11035 to 11045). When the control exposure mode is not S mode, that is, when it is M mode, then P mode is selected. This is because the P mode is always selected in this embodiment.

In step (111055), the down switch (S
dn) is turned on, the same control as the up switch (Sup) described above is performed, except that the direction of changing the exposure mode is different, so a description thereof will be omitted.

In addition, both switches (Sup) (Sdn) are OFF.
If F, do nothing and return.

Next, the function change switch (S□,) shown in Fig. 17 is turned on.
Explain the control when The microcomputer (μC) executes the flow after the step (11205) in which data should be changed. The microcomputer (μC) must determine whether the switch (Ssi) indicating the function to be changed is turned on.
1205), if it is ON, determine the function to be changed from the bit (Fb9.Fb, .) 11225
), +/- → S/C → S/A, and after S/^ is 10/
The data of the bits (Fbl, Fb, .) are changed cyclically by returning to -.

In step (111205), the switch (SsE
) is not ON, step (111265
).

In step (111265), the up switch (Sup
) is turned on, and if it is turned on, the data (Fbl,
Fb.

. ), if the function is in +/- mode, the exposure compensation amount (ΔEv) is set to 0 in (11285).
．． A subroutine that adds 5 and determines its size (11
1287), this subroutine is shown in FIG. 18. If the correction amount (ΔEv) is positive, data Fbi, Fbs-0, 1 is set as a positive correction, and if it is a negative correction, data Fba, Fbs are set. ”=1., O, and if the correction is zero, the data Fba, Fbs are assumed to be no correction.
= 0.0 and return (111350 to 111
370).

Returning to FIG. 17, in S/C mode, data (F
bz) to determine whether the current mode is single shooting (S) or quick shooting, change the data so that it is opposite to the current mode (111295), and return. When it is not in either of the above two modes (toward mode, S/C mode), that is, when it is in S/A mode, the current mode is Spot A.
Data (Fb2) whether it is P (S) or multi-point AP (A)
The data (Fbz) is changed to be the opposite of the current mode (111300), and the process returns.

In step (111265), the amplifier switch (S
up) is not ON, step (111305
), it is determined whether the down switch (Sdn) is turned on, and if it is not turned on, the process returns. O
If it is set to N, the flow is the same as when the up switch (Sup) is on, except that 0.5Ev is subtracted from the exposure compensation amount (ΔEν) in +/- mode, so the explanation is as follows. Omit (111310-11340)
.

Returning to Figure 12, exposure mode change switch (st, I)
.

If both function change switches (SFUN) are OFF, the up switch (Sup) and down switch (Sd
The process advances to step (+1927) showing a subroutine for changing the aperture value (Av) and shutter speed (Tv) according to n).

This subroutine is shown in FIGS. 22(a) and 22(b), and will be explained first.
step (11800) is ON or not.
), and if it is not turned on, step (118
The process proceeds to step 05) and determines whether or not the down switch (Sdn) is turned on. If it is not turned on, the process returns. When the up switch (Sup) is turned on,
Proceeding from step (11800) to step (11810), it is determined whether or not the M mode is set. When the mode is M mode (Fb, pb, = 1.O), the process proceeds to step (11811), and it is determined whether or not the aperture change switch is turned on. If it is turned on, step (#1830) described later is performed. ) and if it is not turned on,
Step to change shutter speed (Ilt850)
Proceed to.

First, I will explain how to change the shutter speed.
t850), add 0.5E, and step (11855
).In step (111855), it is determined whether the set shutter speed exceeds the maximum speed (Tvn+ax), and only if it exceeds, the shutter speed is limited to the maximum speed. +11860) Return. If not, skip step (111860) and return.

If the mode is not the M mode in step (111810), it is determined whether the mode is the P mode or the A mode in steps (11815) and (11820). When in P mode (Fbo, +.0.0), it is determined whether P shift is prohibited (11817), and if it is prohibited, returns. If it is not prohibited, proceed to step (11830). Step (11830)
Then, 0.5Ev is added to the aperture value (Av), and it is determined whether this exceeds the maximum controllable aperture value (Avmax) (cloud 1835). If it exceeds the aperture value (Av), set the maximum aperture value (Avmax) (111840); if it does not exceed it, do nothing and proceed to step (11845) to check whether or not it is in P mode. If the mode is determined to be P mode, the process advances to step (111879) in the flowchart of FIG. 22(b). Returns if not in P mode. Step (111815
) and not in P mode (Fbo, +≠0. O
), to determine whether it is in A mode or not 11B20)
, if the A mode (Fbo, Fbl = 0.O), the process proceeds to step (11830) and increases the aperture value (Av), and if neither, that is, the S mode (FbO, Fbl = 1. 1) is the step (tt823
) and control to increase the shutter speed (Tv).

When the down switch (Sdn) is turned on in step (11805), step (1
1865), determines whether the mode is M mode, and
mode (Fb,, Fbl = 1.0), it is determined whether the aperture change switch (SAv) is turned on (111877). If it is turned on, the process proceeds to step (11885) to change the aperture. If not,
The process advances to step (111905) to change the shutter speed. In step (111905), subtract 0.5 Ev from the set shutter speed and determine whether this is slower than the minimum shutter speed (Tvmin) of the camera (+11907), and if it is slower, limit the shutter speed to the minimum shutter speed (111908). ), otherwise it returns without doing anything. When it is determined in step (#1877) that the aperture change mode is selected (SAVON).

In step (11885), 0.5Ev is subtracted as a reduction in the aperture value (Av), and then in step (111890
) to determine whether the value is smaller than the open aperture value (Ava), and if it is smaller, the aperture value is changed to the open aperture value (^V(1
) and nt895).

In the step (+11890), the aperture value (Av
) is not smaller than the open aperture value (Avo), step (111895) is skinned and step (11
900). If the determination in this step (111900) is that the mode is P, the process proceeds to the control flow for increasing the aperture value (111850 to 111860) shown in FIG. 21(a) described above, and if it is not the P mode, the process returns.

If it is not the M mode in step (111865), it is determined whether the mode is P in step (+11870). Here, when in P mode (Fbo, r
-0°0), determine whether P shift is prohibited or not (It1872), and return if prohibited.

If not prohibited, proceed to step (11885); if not in P mode in step (11B70) (Fb++, +≠0.0), step (8187)
Proceed to step 5) to determine whether the mode is A mode, and if it is the A mode, proceed to the flow for controlling the aperture value reduction from step (111885) onward; otherwise, it is determined that the mode is S mode and proceed to step (11879). Proceed to , and control the shutter speed down.

In FIG. 15, after controlling the settings of (Av) and (Tv), it is determined whether the normally open self-switch (Ssttr) has been turned on. When OFF (IP+i:'H
J) returns immediately.

The self subroutine when ON (IP+z・[L”) is shown and explained in FIG. 19.
If SELF F) is set, reset it (11945) to exit self mode, and if it is not set, reset flag (S11945) to exit self mode.
ELF) and return (1950).

After completing the data setting control shown in FIG. 15 as described above, the microcomputer (μC) moves to step (
11440) to step (1445), photometric data is input from the photometric circuit (LM) and a spot n light value used for exposure is created. Here, the creation of photometric values will be explained with reference to the photometric range shown in FIG. 14 and the flowchart of manual and creation of photometric data of the microcomputer (μC) shown in FIG.

In FIG. 20, the microcomputer (μC) first determines in step (+11600) whether or not a flag (AELF) indicating AE lock is set, and then
LF) is set, the photometric value is not updated and the process returns. When the flag (AELF) is not set, the terminal (CSLM) is set to r)('' level, the photometric circuit (IJ) is commanded to output photometric data, and serial communication is performed (11605, 116).
10).

Through this communication, the luminance values of the four photometric ranges (B-1 to B-4) shown in FIG. 14 are input. When communication is completed, set the terminal (CSL board) to "L" level (11615)
.

Next, in step (11617), enter the value of Bv in 1ive, and in step (11618), set BVAVE after (
11622), it is determined whether a flag (AFNF) indicating that the mode is not in AP mode is set, and further, in step (111624) it is determined whether or not a flag (LCONF) indicating that focus detection is not possible is set. death,
If either one of them is set, the process advances to step (11660) and the small photometry range in the center (
The flag (Ll'h) is the subonto value (Bvsp)
When AFNF) and (LCONF) are not set, the distance is calculated from the feeding pulse, and based on the calculated distance information and focal length information, the image magnification β is calculated from β=focal length/distance (11625). In the next step (11630), it is determined whether this image magnification β is greater than or equal to a predetermined value (K), and the size of the subject occupying the possession screen is determined. If it is greater than or equal to the predetermined value, it is assumed that the subject is large, and in step (11640) each photometry range (LM
I), (LM2), (LM3) brightness value (BV1
).

The average of (BVri, (BV3)) is the spot photometric value (Bvs
p).

When the image magnification β is less than a predetermined value, the photometric range including the focus detection range used for focus detection is set to the photometric value of the main subject (B
In this embodiment, which flag (AFIF-AP3
The range is determined by whether F) is set, and if the flag (APIF) is set, the photometry range (
Luminance value (Bv+) of LM I ), flag (AP2F)
is set, the brightness value (Bvz) of the photometry range (LM, ) is set, and when neither flag is set, that is, when the day focus amount of the third island (AF 3) is selected. The brightness values (BV3) of the photometry range (LM3) are each set as a spot photometry value (Bvsp) (111645 to 111665).

After determining the spot photometry value in this way, the microcontroller (
μC) proceeds to step (11450) in FIG. 6 and performs control regarding AE lock, which will be explained with reference to the flowchart shown in FIG. 21.

First, in step (#1740), it is determined whether the ^E lock switch (SAEL) is turned on,
If it is not turned on, the flag (AELF) is reset (+11755). When it is ON, set the flag (AELF) +11745) and reset and start the power retention timer (T1).5175
0), the spot photometric value 8V□ is the spot value (B□, )
(#1752) Return. Like this A
When the E-lock switch (Satv) is turned on, the power is maintained.

In FIG. 6, after completing this AE lock control, the microcomputer (μC) performs data communication with the card for the third time in step (1455). To explain this data communication with reference to FIG. 5(C), the microcomputer (μC) determines whether there is communication (III) based on the signal input from the card, When to return.

It is empty when no card is installed. Communication (I [
If there is [), the terminal (CSCD) is set to "H" level (1350), data is set (+1352), and the data is output to the IC card (CD) (1355).

Next, it communicates once (s357) and waits (113).
60) Execute the data output subroutine (1362) and after completing the data output, set the terminal (CSCD) to the "L" level (1365) and return.

This data output subroutine is shown in FIG. 5(g) and will be explained. First, it is determined from the data communicated during communication (II) whether or not it is a group designation (1362-1). If it is a group designation (sports card).

snap card, etc.), group designation Go, Gr, Gx,
Controls output of Gs group data to the card. First, set the address for group G1362-
2) Perform serial communication 15 times (11362-3).

Go, G+: Gz, Ga data is lens drive and AE
In the data for calculation, G, Lpmax...--1-- Lens maximum extension amount, and then group G, communicate whether data is necessary or not (
If) is determined based on the data obtained (+1362-4). Return if not needed. G. if necessary.

Please set the address G of the data of 11362-5),
Serial communication is performed three times (11362-6). Next, G
It is determined whether data No. 2 is necessary or not, and if necessary, address G2 is set and serial communication is performed twice. Next, it is determined whether the data in G3 is necessary, and if so, address G3 is set, serial communication is performed once, and the process returns. If the group is not specified, set the address based on the address with the necessary data entered manually from the card (11362-7), and perform serial communication for the number of times of serial communication manually entered from the card (#362).
-8), there is no addressing type in communication (III).

After completing the above-mentioned card data communication (I[[) in FIG. 6, the microcomputer (μC) proceeds to the step (+1460) and performs exposure calculation here.

The flow of this control is shown and explained in Figs. 23 to 27. In Fig. 23, the microcomputer (μC) first forces the light emission signal, which is the output data to the electronic flash device, to 1° 0N=O
, forced 0FF=0. GN control release/initial setting to 0 (12000 to 2003), then step (11
2004), it is determined from the input lens data whether the lens is attached, and if it is not attached, the photometry value (BV□) of the photometry range (LM4) is determined as in the actual aperture photometry.
Add film sensitivity (Sv) and exposure compensation value (ΔEv) to (instead of this, the overall averaged photometric value may be used), calculate the shutter speed, and return (12005)
. If a lens is attached, the data input from the card should be used to determine whether it is in forced P mode or not.12006
), in the case of forced P mode, returns without performing exposure calculation.If not in forced mode, exposure calculation according to each exposure mode is performed (112010 to 112040).

Therefore, the exposure calculation for P mode is shown in Figures 24(a) to (C).
To explain it as shown in the figure, the microcomputer (μC) first
In step (12100) of Figure (a), the backlight condition is determined by checking whether the difference between the photometry value (BV□) of the photometry range (LM4) and the spot photometry value (Bvsp) obtained in step (1445) is 2Ev or more. Determine whether or not (11210
0). If it is 2Ev or more, it is determined in step (#2105) whether an electronic flash device is installed (switch SM of the electronic flash device is ON), and if it is installed, the control exposure value (Ev) is set. Photometric value (B) of photometric range (LM4)
V□), etc., Ev = BvA, +Avo +Sv −
Calculate by 1+ΔEv (#2115).Here, subtracting 1 is to make the background look like backlight by 1[! This is to make it a geoover. In addition, I am trying to properly expose the main subject using a flash from an electronic flash device. and aperture value (A
V), the program proceeds to the subroutine (12120) of program I that determines the shutter speed (TV), and further proceeds to step (1).
2170) sets forced ON and returns. To explain the program (2) shown in FIG. 24(b), the shutter speed control value (Tvc) is adjusted to Tv=7 (
SS=1/125), and the aperture value (AV) is the exposure value (E
Find it by subtracting 7 (shutter speed) from v), determine whether this aperture value (AV) is larger than 7 (F・11), and if it is, limit the control aperture value (AvC) to 7. (12215), and if the aperture value (Av) is 7 or less, the calculated aperture value (AV) is set to the open aperture value (Avo
), and if it is, set the open aperture value (Avo) to the control aperture value (AvC) 112225
), if it is not small, the calculated value (Av) is changed to the control aperture value (
Avc) (12230), and set it to l to release the GN restriction of the electronic flash device (#2235).
At the same time, a light emission signal is set (12240), and the process returns. This is because the aperture is retracted and the GN
This is because if you limit the main subject, it may not be possible to photograph the main subject properly with strobe light.
It is also taken into consideration that the photographer's intentions are not very clear.

Returning to FIG. 24(a), in step (12105), if the electronic flash device (FL) is not installed, the control exposure value (Ev) is adjusted to the spot value ( Bvsp) etc., Ev = Bv
Find by sp + Avo + Sv + ΔEv (12130)
, aperture value (Av), and shutter speed (Tv) The program proceeds to subroutine (*2135) of program (*2135) and returns via step (+12170).

This subroutine is shown and explained in FIG. 24(C).
First, in step (112250), set the aperture value (Av) to Av
= 5/8Ev-25/8, and this aperture value (A
V) is larger than the maximum aperture value (^νwax) of the lens (112255), and if it is, the maximum aperture value (Avmax) is set as the control aperture value (Avc) (112255).
2260), proceed to step (#2280), and in step (s2255), when the aperture (+ft (Av)) is less than or equal to the maximum aperture value (Avmax), determine whether the aperture value (Av) is smaller than the open aperture value (AV0). If it is small, the open aperture value (Avo) is changed to the control aperture value (Avc).
, if it is not small, change the calculated aperture value (Av) to the control aperture value (
Avc) and proceed to step (+12280) (#2
265-112275).

In step (112280), the shutter speed (Tv
) is obtained by subtracting the control aperture value (AvC) from the exposure value (Ev), and in the next step (112285) it is determined whether this is greater than the maximum shutter speed (Tvmax), and if it is, the control Shutter speed (Tvc)
(Tvma 112293), if it is not slow, set the calculated shutter speed (Tv) to the control shutter speed (Tvc).
2295), reset the light emission signal to prohibit light emission (=
O) and return (11229B).

Returning to FIG. 24(a), in step (12100), when the BVAII BVSIIIO difference is less than 2,
Assuming that there is no backlight condition, proceed to step (+12145), and calculate the average photometric value (B) of the photometric range (LMl) to (LM4).
Find the exposure value (Ev) from v, +BV2-toBv, +BV4)/4, and set the aperture value (Av) using the program ■ above.
and determine the shutter speed (Tv) (112150),
The shutter speed (Tv) is the camera shake warning speed (TV
= 6.1/60) (121
55) When the speed is less than the camera shake warning speed, it should be determined whether or not an electronic flash device is installed.12160
), if it is attached, execute strobe light emission program I (12165) and return.

When not installed (including electric flash device Ban),
In step (112170), force ON is set and the process returns. If the camera shake is less than the warning, return without doing anything.

Next, Fig. 25 shows a flowchart for determining the aperture value (Av) and shutter speed (Tv) in A mode. If so, set the control shutter speed (Tvc) to 7 (1/125) and set aperture value (
Av) is returned as the control aperture value (Avc) (1
2300.112305 and 112345). If it is not installed, the exposure value (Ev) is calculated from the average metering value, and the shutter speed (T) is calculated by subtracting the set aperture value from this exposure value (Ev) (12315.1232
0). Then, in the next step (112325), it is determined whether the shutter speed (Tv) is larger than the maximum controllable shutter speed (Tvmax), and if it is larger, the maximum shutter speed (Tvmax) is determined in step (I2330).
Tvmax) is set as the control shutter speed (Tvc) and the process proceeds to step (12345).

If not, the lowest controllable speed (Tvmin
) in step (12331), and if the speed is low, in step (12333)
7vmin) as the control shutter speed (Tvc),
If the speed is not lower than (Tvmin), step (12
335) to control the calculated value (Tv) and shutter speed (Tv
c), proceed to step (12345).

In step (112345), the set aperture value (Av) is made to become the control aperture value (Avc).

Next, to explain the control in S mode as shown in FIG. 26, first, in step (112400), the exposure value (E
v) is calculated from the average photometric value, etc., and it is determined in step (+12405) whether or not an electronic flash device is attached. If it is attached, the shutter speed (Tv) is determined to be 7 or less in step (112415). If it is 7 or less, set shutter speed (Tv) is set as control shutter speed (Tvc) (112420), and if it exceeds 7, synchronized speed 7 is set as control shutter speed (Tvc), and step (112420) is determined. 12430).

In step (112430), the aperture value (AV) is obtained by subtracting the control shutter speed (Tvc) from the determined exposure value (Ev), and this aperture value (Ay) is determined as the maximum aperture value (Av
If it is smaller, the control aperture value (Avc) is changed to the open aperture (fi(112435)).
avo) (I2440) and return. on the other hand,
If the aperture value (AV) is not smaller than the open aperture value (Avo), it is determined whether it is larger than the maximum aperture value (Avmax) (12445), and if it is larger, the maximum aperture value (Avmax) is controlled as the aperture value. (AvC) Toshiki 1245
0), if it is not larger, the calculated aperture value (Av) is set as the control aperture value (Avc) (I2455) and the process returns.

In step (12405), if it is not attached, the set shutter speed (Tv) is set as the control shutter speed (Tvc) (12460), step (1
12430) and executes the subsequent flow.

Next, when in M mode (see Figure 27), step (
112515) to the control aperture value (Avc), and the next step (12520)
Control the shutter speed (Tv) with Shutter speed (Tv
Return as c).

Returning to FIG. 6, after completing the exposure calculation (+1460), the camera's microcomputer (μC) determines whether there is a signal requesting an extension of the time required for communication (■) from the card (#461). If there is, wait for 10m5ec (114
63), if there is no requested signal, do nothing and perform the fourth data communication with the IC card (CD) (1
465). This request signal is sent because the computation time is long in the case of a deformation card. FIG. 5(d) shows a flowchart of this control. First, it is determined whether communication (IV) is necessary or not.
), and if it is not necessary, return. If necessary, the terminal (CSCD) is set to rH level (+1367), serial communication is performed with the IC card (CD) (11375), and the IC card is notified that the IC card is on the output side. Now, wait for a while (1377), use the camera as the input side to perform serial communication, and input data from the IC card (CD) (1138).
2) When this data communication is completed, the terminal (C3CD) is
Return to "L" level.

The data input subroutine in step (13B2) is shown in FIG. Set the register address for data input to the address input from the card (11382-11), perform serial communication as many times as input from the card (1382-12),
Return.

When specifying a group, each communication number (Go
, Gt, Gz), the address of the input register in the camera is set, and serial communication is performed a predetermined number of times. The contents of the data are as follows for the addressing type: (i) for a custom card, for the card;

(ii) Bracket card, H/S card ΔAv
-.-Amount of aperture shift ΔTv -.-Amount of shutter speed shift Next, the case of group designation will be explained.

Go... Display data during setting -...-9 serial communications G2---Δ LP'-- Lens drive pulse -...-1 serial communication Return to Figure 6.
After completing data communication (IV) with the card, the microcomputer (
μC) outputs data to the electronic flash device (ST) (1
1467). This is shown and explained in FIG. 11(b).
The microcomputer (μC) first determines whether the card function is ON based on the data input from the card.1467-
1) If it is not ON, proceed to step (1467-10). When it is ON, it is forced ON based on the electronic flash device control signal input from the card.

Forced OFF, GN restriction release 1 light emission step (It467-2) (1467-4) (1467-
6) When it is determined in (1467-8) and the control signals indicate forced ON, forced OFF, GN restriction release, or non-emission, step them (11467-3).

(1467-5), (1467-7), (1476
-9), and when the above four are not shown, (11467-3°).

(11467-5”)+ (11467-7”) (1
467-9°) and reset the signals respectively at step (11
467-10). In step (#467-10), the terminal (C3FL) is set to the HJ level for a certain period of time (T) to indicate that the camera is in data output mode to the electronic flash device.
CG) as the output side (rHJ), wait for the predetermined processing within the electronic flash device, and then perform serial communication once (
11467-11-11467-13).

When data communication with this electronic flash device is completed in Figure 6,
The microcomputer (μC) executes the card control flow of step (#470). This flow describes how to determine whether or not to control the camera using an IC card (in this case, a program card) based on the input data, and how the camera operates when this is done. To explain it as shown in Figure 28, a microcomputer (μC) is first an IC.
In step (112610), it is determined whether the camera is controlled by the card based on the data manually input from the card;
If the camera is not controlled by the card (CDPNP=O
) returns.

If it is determined that the camera is controlled by an IC card, it is determined whether the data input in communication (IV) is the aperture (AV) and shutter speed (Tv), and
) (TV) data, control aperture value (Avc)
, control shutter speed (Tvc) + film sensitivity (S
V) is determined based on the data input from the IC card (12615 to 112630).

If the above data is not (Av), (Tv) data, it is determined whether or not it is (ΔAV), (ΔTv) data (12635), and (ΔAv) + (ΔT
If the data is not v), return. (ΔAY),
(ΔTv) data, control aperture value (Avc)
(ΔaV) is added to the control shutter speed (Tvc
) to (ΔTV), and film sensitivity (SV ) to (Δ
Sv) and return (12640-11265
0).

In FIG. 6, after completing the routine for determining and controlling the camera using the IC card (+1470), the process moves to display control (11471).

Table 5 shows the contents of data sent from the microcomputer (μC) to the display control circuit, which will be explained below.

There are two display modes: (i) a mode in which display is performed based on display data on the camera side; and (ii) a mode in which display is performed based on display data on the card side.

When displaying on the camera side, it must be possible to control all displays shown in FIG. 2(a). At this time, display data such as shutter speed, aperture value, number of film sheets, etc.
Normally, the code is sent from the camera to the display control device, and the display control device decodes it to control the lighting and extinguishment of the necessary segments. This allows the amount of display data to be reduced. For example, the shutter speed has a 4-digit, 7-segment display, but if you want to control this for each segment, you will need 28 bits of data. When encoding, change the value of this shutter speed to 1
/4000 (display is 4000) ~ 30S (display is 3
0II) and 0.5EV stage, there are 35 types.

In terms of the number of bits, 5 bits is sufficient. Therefore, when controlling on the camera side, it is more advantageous to encode numerical values and send them because the amount of data used for data transfer is reduced.

However, in this case, predetermined rules are required for encoding. Therefore, in the middle (after deciding the rules)
It is not possible to display a different representation from the To do this, it is necessary to control each segment. There are 10 IC cards in this embodiment, but if additional IC cards are to be added in the future, sending the coded signal (display data) as described above will result in the inconvenience of not being able to display it. I will do it. Therefore, in this embodiment, data from a card is displayed segment by segment without being encoded.

Here, regarding the data in the memory of the display control device shown in Table 5, first we will explain the display data sent from the camera side. encoded and stored in memory.

Aperture value (DP, A) ・・−・−・−−−−Data for one aperture value is encoded and stored in memory.

AE mode (DPio) ------be, b+
is input to one of the currently set modes P, ^, S, and M.

Number of films (DP411) . . . Coded data of the number of films is stored in memory, and BO and BO are control data for turning on, turning off, and blinking this data.

Batokan/Season display (DP, H) - This is data that displays the Patokan mark and the Vero sign, and bo is lit.

This is control data indicating that the light is turned off.

Card display (DP6N, DP7M) ・・・・・・・・・
tll+ bl (address DP a 11) is data for turning on and off the display of +/- of exposure compensation,
tls+ b6 (address DPis) controls the selection of single shooting/continuous shooting and turns off the display, bo, br (address D
hH) is control data for flashing, lighting, and turning off the card display, 1) 4+ bs (address DPffH) is multipoint A
The F/spot AP switching display and light-off control are shown respectively.

Data change display (DPIIN) - Indicates the location of the place indicating data change and control of lighting/extinguishing.

Control data (DP911.OP□)・-Data indicating the camera sequence, bo-・All lights off (main switch 0FF) bl・-
・Standby (main switch ON, S, 0
FF) br--Card display b s--Initial load b4--S, ON b,--Rewinding,--One shot AP b,...-H68F (Manual AP) DPao bo
-Self mode LED indicator display (DPCII)
-・bo・−・Presence/absence of focus display, −・Presence/absence of focus detection bl・−Presence/absence of tracking mode bs′−−1 Multipoint Presence/absence of AP b4−・AP /M are shown respectively.

Next, the display control data on the card side will be explained.

DP, engineering --- Data of the leftmost 7 segments indicating the shutter speed (b, ~bi) b, ... "+" 1 (vertical bar) DP! M.--The data of the second 7-segment from the left end indicating the shutter speedb, -.- (horizontal bar) of "+" DPSN...-The data of the third 7-segment from the left end indicating the shutter speed b 'r' - Control of card display DP4) l'' - Data of the fourth 7 segment from the left end indicating the shutter speed DPSN...Data of the 7 segment from the left end indicating the aperture display (bo to b, ) b 'r' - Control of DPt,, I"' - Data of the 7 segments at the right end indicating the aperture display DPtII - - Data of the 7 segments of the first digit of the number of films bl - - ^ b, -1・h b4−・−3 b , −p b, −・−Patokan b, −・DP when displaying based on data from Vero Card
It is 0 except when b2=1 in 911.

Now, when we number the segments as shown in Figure 98,
b0 to b correspond to ■ to ■, for example, r3. When you want to display 'b?', the signal lights up ■■■■■. '-...-boJ is '*11010
11J (1 indicates lighting, O indicates off).

When blinking data, the display data may be changed from "1→0→1" every certain blinking period.

(Regarding this flashing, we have omitted the explanation of the data change on the card side, and only show the displayed content.
It is well known to perform the above-mentioned control).

Data other than the data shown above is not controlled by the card (therefore, the light is off).

A flowchart of the display microcomputer that controls this display is shown in FIG. 29(b) and will be described. Display control circuit (DI
SPC) to the camera microcontroller (μC) terminal (CSDI
When a signal that changes from "L" to rl (J) from SP) is input, the interrupt shown in Figure 29 (b) is executed, and 12 bytes of display data from the camera (see Table 5) are serially communicated. (10-5).It is determined from the input control data whether or not the mode is all off mode.110-
10) If the mode is all lights out (OP, engineering+b+
・1), All lights are turned off with nothing displayed (In-15).

If it is not in all lights off mode (DPIK, be・0), determine whether it is in standby mode or not (110-20)
, when in standby mode (DPqo +t11
・1) Display the currently set AE mode in DPo
Display based on Nosu, , b (ItD-25). D
Card display and DPI based on PhH and DhH information
Cursor (Δ) based on the data in the IN data change display
) position and turns off the rest (110-30
-10-40), an example of which is shown in FIG. 29(C). Figure 29 (C) shows P mode with card function.

Δ mark (cursor) at the exposure compensation position, no exposure compensation function,
It shows the display of single shooting mode and multi-point AP.

If it is not the standby mode in the step (110-20), it is determined whether or not it is the initial load (1
10-45). When the initial load is (DP, 0
, b, = 1), displays only the film number display (DPqo), and the Batkan/Perot display, and turns off the others (
ID-50 to ID-60), Figure 29(d) shows that the film is loaded and is in the initial load. A "-" symbol indicates the number of films being rewound at that time.

When not rewinding, determine whether a card is displayed (1
0-70), when displaying cards (DPq, I, bz
・1), Shutter speed based on DPIK-DP, H data.

Aperture, AE mode, Pato campero, number of film C
The display of ARD is controlled for each segment. The display of this card will be explained in detail later. Step (110-
If it is determined in step 70) that the card display mode is not set, the process proceeds to step (110-105), where it is determined whether the switch (S,) is turned on or not. (+1O-110), and when it is not turned on, the display in the finder is not performed, and each step (110)
-115).

Here, based on the DP and H information, this is decoded to display the shutter speed (SS), the DhH information is decoded to display the aperture value, the DPZN ba and b+ data are decoded to display the AE mode, The number of films is displayed based on DP and H, and the number of films is displayed based on DP□.

Card-related display based on DP6H178 information,
Display of data change (Δ) based on information of 0P8H, D
P, H's b□by, DP+. A quiet mode based on , Nosu.

Display self (ID-115 to key D-155)
An example of this is shown in FIG. 29(a), which shows a flowchart of display control (creation of display data) on the camera side. First, in step (12700), it is determined whether or not card display control is being performed. If it is card display control, the mode is set to output the information input from the card as is, and serial communication is performed 12 times (112705 to 2730). on the other hand,
When not controlling the card display, the mode outputs coded data created by the camera (shutter speed, aperture value, number of films, etc. - see Figure 29 (e)).
112710), serial communication is performed 12 times (112
720), Next, in step (112735), it is determined whether the card side has the authority to control the buzzer based on the data input from the card, and if the card side has the control authority, the camera shake from the card is determined. Determine whether there is a warning signal (82740). If it is a camera shake warning, a buzzer warning is issued (I2745) regardless of whether or not there is a buzzer warning by the custom card, and step (12765) is issued.
) Proceed to step (12765) 0 If it is not a camera shake warning, proceed to step (12765) without issuing a buzzer warning. If the card does not have the buzzer control authority, it is determined whether the shutter speed determined by the camera is less than 6 (112750), and if it is not, the process proceeds to step (I2765). If it is less than 6, it is determined whether the card function is turned on based on the data input in communication (II), and if it is not turned on, it is determined whether or not there is a buzzer warning based on the data in E"FROM in the camera. 12754), a buzzer warning is issued if there is, and if not, the buzzer warning is not issued and the process proceeds to step (112765).

If the card function is ON, determine whether it is a custom card (112758) L. If it is not a custom card, proceed to camera control and perform the control described above. If it is a custom card, input from the card. Based on the data of the communication (IV) that occurred, it is determined whether or not there is a buzzer (112760), and if there is, the buzzer alert is activated1.
2756), proceed to step (+12765), and if there is no buzzer warning, proceed to step (112765). In step (12765), it is determined whether or not there is a write control signal from the custom card to the E"PROM, and when there is a signal, data from the custom card is written in communication (IV) (112770), and step Proceed to (m2775). When there is no write control signal, skip step (m2770) and proceed to step (112775).

Step (12775) is a subroutine for setting the mode.

Here, the subroutine for the above mode setting is shown in Figure 29 (f
), here, it is determined whether the currently set mode of the camera is in the newly set mode or not, and if it is not, it is moved to another set mode. There is. For example, if A mode is currently selected for exposure, but if A mode is removed from the exposure mode selection by an IC card, the A mode remains as before.
It would be strange to display and control the mode, so this is prevented.

Now, in the flow of Fig. 29(f), the microcomputer (IC)
), first check whether the settable exposure mode has been changed.
Compare the FROM data and the data input from the IC card (CD) to determine whether they are different (113203), and if they are different (that is, there has been a change), the data will be changed to force the exposure mode to P mode. (Fbo, Fb+)
Set to (0,0) (13205) and return.

After completing the display control (11471) described above in FIG. 6, the microcomputer (μC) proceeds to step (+1472) and determines whether self-timekeeping is in progress, and if it is in progress (SLP-1). It is determined whether 10 seconds have elapsed (+1474). If 10 seconds have elapsed, the process proceeds to step (11490) to perform exposure control. If 10 seconds have not elapsed, the process returns to step (1180). When not in self-timekeeping (5LP=O), step (m473
), it is determined whether the release switch (S2) is turned on or not, and if it is not turned on (IPg=
'H'), the process advances to step (1520), permits all interrupts, and returns. When it is turned on (I
It is necessary to determine whether or not release prohibition data obtained through communication (tl) is set in h='LJ) (11475), and if it is set, step (1
1520). On the other hand, when there is no cent,
Check whether self mode is selected or not.147
6) If it is not selected (SELFF=0), proceed to step (11481).

When selected (SELFF = 1), set the flag (SLP) indicating self-timekeeping (11477), reset and start the timing timer (separate from power retention) (m478), and set the flag to maintain power supply. (
OFF) is set (11479), the AE lock flag (AELF) is set (11480), the measured value is fixed, and the process proceeds to step (11180).

Step (11) to proceed to step (1475) in FIG. 6 when not in self mode (IP+!='HJ)
481), manual focus mode (MFF
= 1 (focus lock or manual focus adjustment using only focus detection)], and if it is manual focus mode, proceed to step (m490); if not, proceed to step (m490).
In step (1485), it is determined whether or not a flag (AF[!F) indicating focus is set, and if it is not set, the process returns through step (1520). When set, the above AF
Proceed to step (+1490) to disable all interrupts, and then proceed to step (11492) as when not in mode.
Communicate (V) with the card. This is shown and explained in FIG. 5(e).

First, the microcomputer (μC) determines the presence/absence of communication (V), and if there is no communication, returns, and if there is, the terminal (C3C
Set D) to "H" level (m390), set data indicating communication (V) +1391), set the camera side as output (11392), perform serial communication once (11393), then Set the data, use the camera side as output, and perform serial exchange once. I'm looking forward to the time 1
394), camera side as input 11385), serial exchanged 8 times (11396), terminal (C5CD)
is set to "L" level (11397) and returns.

This data is data for the memory card memory.

Here, the data contents are shown and explained in the CA-C0 table: (i) Number of films (ii) Open FNO (ij) Control F value (1v) Control shutter speed (v) Exposure compensation value (vi) Exposure mode (vi) Exposure mode (VIM) film sensitivity. After completing the communication (V), the microcomputer (μC) proceeds to step (#495) and performs exposure control (described later), and then winds the film one frame in step (11500) (this will also be described later). ), release switch (
It is determined in step (11505) whether SZ) is ON or not, and if it is ON (Ih='LJ), it is determined whether a forced snapshot signal from the card is being input.

If it is done manually, proceed to step (1515).
If it is not input, it is determined in step (1510) whether or not it is a quick shooting mode, and if it is a continuous shooting mode (F
b3 = 1), all interrupts are enabled in step (+1515) and the process proceeds to the SO3 routine. If the mode is not continuous shooting mode (pb3 = O), the process returns to step (1505) and the release switch (S2) is turned off. When the interrupt is turned off, all interrupts are enabled in step (11520) and the process returns.

Next, the exposure control subroutine of step (+1495) is shown in FIG. 30(a) and will be described. First step (
It2805) connects the terminal (CSST) between (t,) and rl(
J level to indicate to the electronic flash device (ST) that it is in exposure mode.

Then, the film sensitivity (Sv) is output after D/^ conversion as analog data to the light control circuit (STC) (+
2810).

In the next step (12815), the control aperture value (Avc
) to perform aperture control and start mirror up. Next, the lens is driven during release. This is the 30th
As shown in Figure (b), first it is determined whether the card function is ON or not (12822-0), and if it is ON, there is a snap drive bit signal indicating lens drive during release inputted from the IC card. Step (12822
-1), and if there is no signal indicating card function OFF or snap drive, proceed to step (s2822-4) and wait for mirror up to be completed. ”) Return. When the above signal is present, the lens drive amount (Δ
n) (12822-3), stop the lens (12B22-4), and wait for mirror up to be completed (112822-5). Mirror up is completed (
IPt.・Return “L”).

Next, return to FIG. 30(a) and control the shutter speed (a2825).
Perform LI [control] (112830) and return. To explain this as shown in FIG. 30(C), first it is determined whether the card function is ON or not (12830-0).
, returns if it is OFF. If it is ON, determine whether there is a snap drive bit signal.112830-
1) In some cases, drive the lens by an amount (-Δn) opposite to the above (112830-2) to stop the lens.
-4), return. When there is no signal of the above bit, it is determined whether or not a default card is inserted (112830-5). Returns if it is not a deformed force card. In the case of a deforming force card, the number of count pulses (CNT) at the current position of the driven lens is set as CT"112830-6), and the difference (Δn) from the lens position before driving (CT") is calculated. (12830-7) Step (112830-2)
, performs the same control as described above, and returns.

The Tv control routine in step (s2825) in FIG. 30(a) is shown in FIG. 30(d) and will be explained first. First, the microcomputer (μC) changes Tv to exposure time (T) (12835) and then changes the exposure time to The measurement timer is reset and started (12836), the first act (not shown) is started (+2837), and it is determined whether the card function is ON or not (12838). If it is OFF, the exposure time (T ) to wait for the progress (12846). On the other hand, if it is ON, it is determined whether it is a defocusing card (112839), and if it is a defocusing card, the pulse currant at the current position of the lens is
T' is memory L (12840), exposure time (
T) becomes T/4 (112841). T/4
Then, it is necessary to detect the driving direction to the far side or the near side from the information of (ΔLp) inputted from the card (112842), set the direction accordingly, and drive the lens at the highest speed (112845). At this time, the counter that monitors the lens extension position is still operating. At this time, or when it is not a deforming force card, the exposure time (T) is reached (12846), and if it becomes T, the second act (not shown) will start running (12847) and the running will be completed. Wait for a while (1284B), then stop the lens drive motor (112849).
, return.

31(a) and b), step (15) of FIG.
00) is a flowchart showing the control for winding one frame of the film shown in FIG. To explain this, the third
In Figure 1 (a), the microcomputer (μC) outputs a motor hoisting signal to the motor control circuit (MD), and the timer (T,
) to reset start (12850.12855
).

This timer winds the film to the last frame,
This is a timer to detect when the film is stretched. The microcomputer (μC) switches (Swb) to indicate that one frame has been wound in the step (I2860).
If it is not ON, it is determined in step (112865) whether 2 seconds have passed in this state, and if 2 seconds have passed, the motor is stopped (112870). ), assuming that the film is taut, control the film tautness (I2875).
, Next, set the cancel signal to 1 to cancel bracketing or auto shift that is continuous shooting 1287
6) Perform data communication (11287?) and return. The above-mentioned tight subroutine is shown in Fig. 31 (b
), it outputs a signal to reverse the motor (12930) and also outputs a film detection switch (SF
Wait until Lll) turns OFF (I2935)
When the switch is turned OFF, a motor stop control (12955) is performed to wind up the film into the cartridge chamber, and then the process returns.

Returning to FIG. 31(a), when the one-frame winding completion switch (Swo ON) is turned on in step (12860), the motor is stopped in step (12880), and then in step (12885). Determine whether or not there is film, and if so, in step (112890>, count number (N,) of the counter indicating the number of film shots
Increment by 1 and step (12900)
Proceed to.

If there is no film, proceed directly to step (I2900) without changing (Nl). Step (1112900)
Now, write this number of films (N,) into E''PROM.

Next, when the back cover close detection switch (SaC) or the rewind switch (SaW) is operated, the terminal (INT
A pulse signal is input to 2), and the microcomputer (μC)
Execute the interrupt (INTz) shown in the figure. In the flow shown in the same figure, the microcomputer (μC) first prohibits interrupts to this flow (13000), and then steps (13000) after L.
113005), it is detected whether the rewind switch (S) is turned on. If it is ON, in step (113010) the rewind routine shown in FIG. 0
If the 0 rewind switch (S), which allows interrupts and returns in step (13100), is not turned on, it is assumed that the back cover opening switch (sun) is turned on, and the bracket function or auto shift is set to 0. To restore the function, the cancel signal (used in data communication 1) is set to O (13012), and the process proceeds to step (113015), where it is determined whether or not a film exists. If there is no film, therefore, the film detection switch (SFL, ) is OFF.
In the case of F, the process proceeds to step (13100) via the step (13011). On the other hand, if the film is present (that is, when 5FLII is ON), the terminal (
Set the terminal (C5DX) to the "HJ" level, perform serial communication with the film sensitivity reading circuit (DX), input the film sensitivity data (Sv) and the number of film exposures (N), and when the communication is finished, set the terminal (C5DX) to "L". ” level (1
13020-13030), and the number (Nl) is -2
13035), then the terminal (CSDIS
P) is set to rH level, performs serial communication with the display control circuit (It3045), outputs a signal indicating initial load (DP9Hb+==1) and data on the number of films, thereby indicating the number of films (N1). Do not display anything other than data. When serial communication is finished, the terminal (C3DISP) is set to "L" level (113
050). The value of the number of films (Nt) is displayed using two 7 segments. Next, the microcomputer (μC) outputs a signal indicating motor winding to the winding control circuit (113055), waits for one frame to be wound (113060), and switches the one frame winding switch (SWO) to the winding control circuit (113055).
) is ON, add 1 to the number of films (N1),
It is determined whether or not it has become 1. If it has not become 1, the process returns to step (113040). If it is 1,
Proceed to step (n3075), stop the motor, and proceed to step (113095). And step (1
13095), the number of films (N1) and the film sensitivity are written to a predetermined address in the E2FROM, and after the writing is completed, all interrupts are enabled (#3100) and the process returns.

Here, in this embodiment, setting and resetting of flags and bit 1. It should be added that it is the same as O.

In the above, the microcomputer (μC) on the camera side of this embodiment
Although various flowcharts have been explained with a focus on the operations, the control operations on the side of the IC card attached to this camera will also be explained using flowcharts. In addition, each type of card will be explained. IC card (CD)
A microcomputer (μCt) with a built-in E"FROM is built into the .

First, we will explain the operation of custom cards.

(1) Custom card When the IC card is inserted into the camera, the microcontroller (μC2) of the custom card executes the reset routine shown in Figure 33, resets all flag 1 registers (RAM), and stores data in the E"PROM. Information is stored in RAM (EEC5TM.

1) and sleeve it (C-5, C40).

Next, when the camera sends a signal that changes from "L" to rH to the card's terminal (C3CD), the card
Execute the interrupt shown in the figure. Here, the card synchronizes with the clock sent from the camera and performs serial communication once to input data indicating the type of communication (C-15).
.

From the data from this communication, determine the type.C-2
0), communication (+), use the card as the data input side C-25), perform serial communication (C-30), and receive data (see CA--CD) from the camera.

C-35) Sleeve to execute the data setting subroutine based on this data.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a custom card table.

In communication (If): ・Does the card perform display control? C5II-1-b4
・Card function 0N10FF C5II-1
-BS・Communication (V) None (・O) CS I
I-2-b.

・Release prohibited CS■-2-b.

・AF prohibited csn~2-b.

・E”P writing C3II-3-b
z・Tv' Av display data (=0) cs
II-3-bi・Communication ([V) Yes (・1)
C5■-3-b4・Communication (III) None (・0)
C5n-3-BS・Communication type
C5n-3-bi/photometry loop repetition
CS II-3-b.

・Custom card (=1) C3II-3
All signals other than the -bs signal are set to "0", and those marked with * in the table are set to "1" or "0" depending on the situation, and when it is "l", the control is 1oN, and when rQ, it is OFF.

For fixed items, determine rO, +, rlJ. In communication (II), in addition to that, the number of direct address type communication data (2 times) in communication (■), the address (C5II-7, 8), Communication in group communication (I [
Since there is no I), C5II −9−(b+ , bz)=
0゜O9 communication (IV) is only for display, so C5II -
10-b+・1° Otherwise, mark "O".

Note that in the above table, any data may be stored in the blank areas.

In communication (IV), RA uses data of functions that can be changed.
It's in M.

In the communication (Vl), a signal indicating whether or not the sleeve is available is sent.

Next, the data setting subroutine is shown in FIG. 35(a) and explained. First, steps (C-146) to (C44)
9), set the display control data to "0" and set the release prohibition (
・0), prohibition of AP prohibition (・0), prohibition of photometry loop repetition (-○), and then step (C
-150), it is determined whether the write signal of E"FROM in communication (n) is 1, and if it is "1", it is assumed that the write data has already been output to the camera last time, and this is set to "0". -155), proceed to step (C-160).

If it is "0", do nothing and proceed to step (C-160). Next, it is determined in step (C-160) whether or not the DISIIEQ (request for card name display) signal obtained in communication (1) is [l], and if it is "1", the display control data Set to "l", set card display function 0N10FF to 0N (1), do not write E"P (0), set group designation data to (0) (C-170 to C-19
5). Next, it is determined whether the flag (SIF) is set (C-200), and if it is not set, this flow is passed for the first time, and the flag (STF) is set.
(C-205), reset and start the timer (C-210), and proceed to step (C-2).
Proceed to step 15). If the flag (STF) is set, jump directly to step (C-215).

In step (C-215), it is determined whether the timer has elapsed for 10 seconds. If 10 seconds have not passed,
Photometry loop repetition signal rl, Toshiki C-220)
, sets the card display base and data for displaying only the card (C-222), and returns. This display is the 37th
As shown in the figure. - On the other hand, if 10 seconds have passed, the flag (Sr
F) is reset, the display control data is set to "0", and C-226, C-227) is returned.

If DISREQ is 0 in step (C-160) above, proceed to step (C462) and set tps to "L".
(i.e. switch Scs + 5FLIN + Se
Determine whether any of D+ Sc++i + S+ is ON) and reset the display flag (display F) that indicates control to display the card name when it is "L".C-163
), r If not LJ, proceed to step (C-165) without doing anything. This step (C-165)
After resetting the flag (SIF), the process proceeds to step (C-260) of FIG. 35, etc., and it is determined whether the self signal obtained in communication (n) is "1" or not.

When the value is "1", a return is made to prohibit control by camera switch operation (card related). When the self signal is not “1”, press the card setting switch (See
s ) is turned on (C-265
). When it is ON (signal = 1), it is determined in step (C-270) whether or not a flag (Scos IF) indicating that the signal has passed through is sent, and if it is set, the step is directly executed. Proceed to (C-276), and if it is not set, set it (C-27)
5), proceed to step (C-276).

In this step (C-276), it is determined whether or not it is being set, and if it is not being set, it jumps to step (C-405) and performs display control to enter the setting mode.

If setting is in progress (SETF=1), the operation returns without performing display control, since the operation was performed to exit setting.

When the switch is OFF in step (C-265),
Proceed to step (C-280) and set the flag (Seas I
Determine whether or not F) is set, and if not set, proceed to step (C-310). If it is set, please reset it.C-285)
It is determined in step (C-290) whether the flag (SETF) indicating that data is being set is set, and if it is set, it is reset.C-295)
, E"PR write signal (E" in camera and card
Write signal to FROM) to 1 (C-300)
, step (C-310
). This exits the setting process and causes the camera to write the data from the card to the E''FROM inside the camera.

If the flag (SETF) indicating that setting is in progress is not set, set it (C-305) to enter data setting mode and proceed to step (C-310). If it is inside (SETF=1)
, determine whether the card switch (SCD) is turned on or not based on the communication (It) data C-315),
If it is turned on (Sc.

81) Determine whether or not the flag (ScalF) indicating that the vehicle has passed through this point is set (C-320), and if it is sent, proceed to step (C-345).

If it is not set, set it in step (C-325).5cDIF=1), then in the next step (
C-330) change mode 1 → 2 → 3 → 1...- and 1
Then proceed to step (C-310).

Here, change mode 1 is - AE mode combination selection 2 is... AP mode selection 3 is... - presence/absence of camera shake warning buzzer. In the above step (C-315), the card switch (ScD) If is not turned on (ScnJ),
In step (C-335), it is determined whether or not the flag (SColF) is set, and if it is not set, it is determined that no operation has been performed, and step (C-345) is performed.
When set to , the switch (see) is ON.
Assuming that the flag has turned OFF from
-340) and then step (C-345)
Proceed to.

In step (C-345), the up switch (sup
) is ON or not, and if it is ON, (Su, 1), determine whether the mode is 1 or not.C
-350), when mode is 1, 1→2...7→8...
・Proceed as follows, and after 8, return to 1 and proceed (C-355
), where 1 in mode 1 is PASM 2 is PSM 3 is PAS 4 is PAM 5 is PA 6 is PS 7 is PM 8 is P. When the mode is 2, the process advances from 1 to 2 to 3, and after 3, the process returns to 1 (C-365).

Here, 1 is focus lock, 2 is continuous AF, and 3 is spot AF.When the mode is not 2, that is, when it is 3, it is 1←→
2 (C-370).

Here, 1--hand wave warning buzzer is present 2---hand wave warning buzzer is not present. Once you have finished making changes within each mode, step (
Proceed to C-405), up switch (S, p) is OFF
When F, it is determined whether the down switch (Sd, 1) is turned on (C-375), and if it is not turned on, the process proceeds to step (C-405). When it is turned on, the direction of change is just the opposite of that of the above switches (S, . . .), so the explanation will be omitted.

After completing the processing of (S, , ) and (St-), the process proceeds to step (C-405) and subsequent steps, and display control/1. Release prohibited・1. AP prohibited・1. Group specification・0. Repeat photometry loop ・Set the display data during data setting and return. Note that the display during this setting will be described later. As a result, the camera performs the function of continuing display regardless of display control by the card, release prohibition, AP prohibition, and camera power hold timer.

In step (C-310) above, setting is not in progress (SET
F・0), step (C) in FIG.
C-430) and turn on the card switch (sce)
card switch (SCO)
is OFF, this flag (
SCIIF) and determine whether the display flag (display F) is set or not (C-462), and return if it is not set. When it is set, the process proceeds to step (C-170) in FIG. 35(a), and the display of the card name is controlled. Above step (C-4
30), determine whether the flag (ScsF) indicating that the card has passed through when the card switch (Scn) is ON is set (C-435), and if it is set, the switch is continuously operated. Step (
Proceed to C-462).

If the flag (ScJ) is not set, please set it (C-440), next step (C-445)
Determine whether the card function is currently turned on with O
If it is N, it is turned OFF (communication H data) (C-450), the display flag (display F) is reset (C-451), and the process returns. Conversely, if it is OFF, turn it ON (communication ■ data) in step (C-455), set the display flag (display F) in step (C-456), and proceed to step (C-170). Proceed to control the card name display.

Returning to FIG. 34, if it is not communication (1) in step (C-20), it is determined in step (C-40) whether or not communication is (II), and if communication is (II), the above settings are applied. Set the card side as the output side to output data to the camera, perform serial communication 10 times, and sleep (C-45, C
-50).

If it is not communication (II), it is determined in step (C-55) whether or not communication is (IV), and if it is communication (IV), the card is set as the output side (C-60), and whether the group is specified or not. shall be determined in step (C-65), and display data shall be output when a group is specified (C-70)
, set the address and perform serial communication 9 times (C-
75), proceed to step (C-90). When not specifying a group (direct address specification), function change data (E
Specify the address of ECSTM) (C-80), perform serial communication twice (C-85), and proceed to step (C-90).
). In step (C-90), it is determined whether the E"FROM write signal is set, and if it is set, the 2-byte data of EECTSH is sent to E"FROM.
A write control signal is output to write to a predetermined address in the ROM (C-95). Writing to E"PROM is done by hardware, and the microcontroller (μC) only needs to send a control signal. Then, the write end signal (this signal is automatically set by the hardware configuration when writing is completed) must be reset. C-100) Sleep. When there is no write signal, sleep immediately. Step (C-100)
When communication (IV) is not detected in 55), it is assumed that communication is (■), and first determine whether writing has been completed using the above completion signal, and if it has been completed, set the sleep enable signal. C-110), End If not, set the sleep disable signal (C-115), proceed to step (C-120), and set (C-120) as the data output side.
120), performs serial communication according to the clock from the camera (C-125), and goes to sleep.

Fig. 34 shows the display contents at the time of setting.

When you press the card set key in the normal display mode (A), the rCuS displays the custom card as shown in (B).
rl is displayed at the exposure mode AMSP and number of films for all t-IJ, and the card mark also flashes. If the card setting key is turned OFF in this state,
Enter exposure mode combination settings. As shown in (C) to (J), from the above display, the exposure mode is displayed with a flashing display of the selected mode and a flashing value of the number of films, and by turning on the up/down key, the direction shown in the figure is shown. Then, the combination of exposure modes and the value of the number of film sheets change.

Furthermore, when the card key is turned on, the mode is indicated by the switch (S,) as shown in (K) to (M).
'Cu5t-2'.When the up/down key is turned on, the number of films changes as 1-→2←-3←-1.0 When the card key is turned on, (N),
By turning on the "rcust -3" and the up/down keys like (0), the value of the number of films changes from 1 to 12. Go to the next card key ON exposure mode setting.

In this state, press the card set key to return to normal display.

Next, the operation of the data memory card will be explained.

(2) Data memory card When this card is attached to the camera, it executes the reset routine shown in FIG. 38, resets all flags and registers (RAM), and goes to sleep (D-5).

Next, when the camera sends a signal that changes from "L" to r)IJ to the card's terminal (CSCD), the card
9. Execute the interrupt shown in Figure 9. Here, the card must synchronize with the clock sent from the camera and input data indicating the type of communication (perform serial communication once (D-10).
).

From the data from this communication, determine the type D-1
5) For communication (1), use the card as the data input side and perform serial communication to receive data from the camera (CA←
- CD table)) is taken (D-20, D-25).

Based on this data, a subroutine for display control is executed in step (D-30), and the computer goes to sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a data memory card table.

In communication (II): ・Does the card control the display? C5II-1-bn
・Card function 0N10FF CS I[-1
-BS・Communication (V) Yes (・1) CS n
-2-bz/Release prohibited CS■-
2-b3・AF prohibited CS If
-2-by・Tv' Av/display data (=0)
C3II-3-bs・Communication (IV)
C5n -3-b4・No communication (III) (・0
) C5It -3-bs・Group specification・Communication type (・O) C5II-3
-b4・Photometering loop repeat C5rl -3
All signals other than the -by signal are set to "Oj." In the table, the * mark is set to "1" or "0" depending on the case, and when it is "1", the control is ON, and when rOJ, it is OFF.

For fixed items, rQ,, rl, are determined in advance. In communication (II), since there is no communication (III) in group communication other than that, C3It -9-(bl,
bt)・0,0. Communication (IV) is only for display, so C5
II-10-b.

・l, otherwise set to "0".

Any data may be included in blank areas in the table.

In the communication (Vl), a signal indicating whether or not the sleeve is available is sent.

In communication (V), data for memory is sent from the camera.

The data setting subroutine is shown in FIG. 40 and will be explained. First, in steps (D-150) to (D-155), the display control data is set to "0" and the release prohibition is prohibited (-0) 1.
Initially set to AF prohibition prohibition (・0), DISI? obtained from communication (1)? It is determined in step (D-160) whether or not the EQ (request for card name display) signal is "1", and if it is "1", the display control data is set to "1" and the card is displayed. (D-170), then step (D
-200) to determine whether the flag (SIF) is set, and if it is not set, this flag should be set as this flow is passed for the first time.D-205)
, the timer is reset and started in step (D-210), and the process proceeds to step (D-215). Flag (SI
Even when F) is set, step (D-21
In this step (D-215), proceeding to 5), it is determined whether or not the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, the photometry loop repetition signal is set to "1" (D-220), the card display base and data for only card display are set (D-222), and the process returns. This display is shown in FIG. 41 0)).

On the other hand, if 10 seconds have elapsed, the flag (SIF) is reset, the display control data is set to "OJ", and the process returns.

In step (D-160), DISRE[l=O, proceed to step (D-162) and set tps・“L”.
(i.e. switch SEX' + 5FU) l + S
Determine whether any of cnt 5cos + S'+ is ON) and reset the display flag (display F) that indicates the control to display the card name when rl, J.D-
163), if it is not rLJ, do nothing and proceed to step (D-165), this step (D-16)
After resetting the flag (SIF) in step 5), Fig. 40 (
Proceed to step b) (El-260) and communicate (■)
It is determined whether the self signal obtained in step 1 is "1" or not. When it is "l" here, camera switch operation (card related)
Returns to prohibit control by. When the self signal is not rlJ, the card setting switch (S, □) is set to O.
It is determined whether or not N has been set (D-265). When it is ON (signal = 1), it is determined in step (D-270) whether or not a flag (Scos IF) indicating that the signal has passed through is set, and if it is set, the step is directly executed. Proceed to (D-276), and if it is not set, set it (D-275) and then proceed to step (D-276).

In this step (D-276), change mode is set to 1 (
(described later), and then in step (D-277) set the number of sheets to 1 (
(to be described later), the process proceeds to step (D-405), and display control is performed by entering the setting mode.

When the switch is OFF in step (D-265),
Proceed to step (D-280) and set the flag (Sees I
It is determined whether or not F) is set, and if it is not set, the process proceeds to step (D-310). If it is set, please reset it D-285)
, it is determined whether or not a flag (SETF) indicating that data is being set is set (D-290), and if it is set, it is reset (D-295) and the process proceeds to step (D-310).

If the flag (SETF) indicating that setting is in progress is not set, set it (D-305), enter the data setting mode, and proceed to step (D-310). If it is inside (SETF=1)
, it is determined from the data of communication (II) whether the card switch (SCO) is turned on or not in step (D-315), and if it is turned on (Sc++=1), a flag ( ScolF) is set (D-320), if it is set, proceed to step (D-342); if not set, proceed to step (D-325) to set it. 5CDTF=1), in the next step (D-330), advance the change mode by 1 → 2 → 3 → 1-, and step (D
-342).

Here, change mode 1 is - shank speed, aperture value, mode display, number of film sheets, card mark flashing display 2 is - film sensitivity 1 exposure compensation value, number of film sheets, card flashing display 3 is... Interchangeable lens Focal length, aperture F of interchangeable lenses
8°, number of films, and flashing card mark.

If the card switch is not turned on (Scn・0)
, determine whether the flag (SCDIF) is set (D-335), and if it is not set, assume that no operation has been performed and proceed directly to step (D-342).
, the switch (See) is set to O.
Assuming that it goes from N to OFF, step this flag (
D-340) and then step (D-342).
).

In step (D-342), it is determined whether or not there is data (for example, shutter speed data) at an address indicating the first number of films in the E"FROM memory.

If this data is not present, it is assumed that a new memory card has been inserted, and in step (D-344) the memory card is set to n-1 (first card) and the process proceeds to step (D-405). If there is data, the process advances to step (D-345). Step (D
-345), it is determined whether the up switch (S, ,) is turned on, and if it is turned on, the up switch (S, ,
1) In step (D-355), the number of films at that time is incremented by one as follows: 1→2→-・35→36→1-. After changing the number of films in this manner, the process proceeds to step (D-405).

In step (D-345), the up switch (Su
, ) is OFF, the process proceeds to step (D-375) and it is determined whether the down switch (Sd, l) is ON. When the down switch (S4.) is turned on, the change is the same as when the above-mentioned up switch (S-) is turned on, except that the direction of change is reversed, so the explanation will be omitted.

Up switch (Su,) and down switch (S4,
, ), the process proceeds to step (D-405) and subsequent steps, and display control/1. Release prohibited・1. AP prohibited/
1 degree photometry loop repetition/step as 1 (D-42
Proceed to 6).

In this step (D-426), it is determined whether or not there is data on the number of films to be displayed by checking whether there is data (for example, shutter speed data) at an address corresponding to the number of films in the E''PROM. Here, if such data exists, display data is set in step (D-427) according to the contents of the memory in the E''PROM corresponding to the number of films and the change mode (this display will be described later). If there is no data, set specific data (D-428).

This set of specific data is shown in FIG. 40(d), and the display contents will be explained with reference to ■ in FIG. 41(C).
First, determine what the change mode is, and step (D4
2B-1) and mode l, six 7s to display numerical values.
Set display data (data l) for displaying the segment as r---i (0428-2), step (04
2B-3), set display data (data 2) that sets the two 7-segment displays from the right end to "-" and turns off the others (042B-3).
-4), if it is mode 3, set display data such as "L----" where the leftmost segment is set to "L" indicating lens information, and the remaining 5 7 segments are displayed as bars ( 0428-5).

After setting each display data, each returns. It should be noted that the camera performs functions such as display control based on card data, release prohibition, f-f prohibition, and a function of continuing display regardless of the camera's power hold timer.

In the above step (D-310), the setting is not in progress (SET
If it is determined that F=0), step (C) in FIG.
D-430) and turn on the card switch (scn)
The card switch (Sco)
Returns when is OFF.

When the card switch (see) is ON, the display flag (display F) is set (D-433) and the display shown in Fig. 40 (
Proceeding to step a) (D-170), the card name is displayed.

This data memory card has a card function of 0N10F.
F is ignored and data is memorized when a card is installed), and instead, a card switch (SCD
) is operated, the card name is displayed.

Returning to FIG. 39, when it is not communication (1), communication (If)
D-35), and when communication (II), set the card to the output side to output the data set above to the camera D-40), and perform serial communication 10 times (D-40). -45) Sleep.

If it is not communication (II), proceed to step (D-50) to determine whether or not communication is (IV), and if it is communication (IV), set the card to the output side (D-85) and display the data. D-90), sets the address, performs serial communication nine times (D-95), and goes to sleep.

When there is no communication (IV), it is determined whether there is communication (V) or not (D-55), and when it is communication (V), the data is input to the input side (low 60), and serial communication is performed (D-65). Input memory data from the camera.

Among the input data, check whether there is data on the number of films (N≠0) or not (N = O) in step (D-7).
0) and there is no data indicating the number of films,
It assumes that no film is loaded and returns without storing the shooting data. If there is data indicating the number of films, proceed to step (D-73) and select the N+1th film (
If there is no data in the E2FROM, the number of films (N-
1) Set the number of X8 bytes as the write start address and the number of data as 8, output a control signal to write the input 8 bytes, and reset the end signal (D-76 to D-
80). If there is data for the N+1 film, write the 8 bytes of the above input data and the predetermined 8 bytes of data to the next 8 bytes using the number of films (N-1) x 8 bytes (SIO input byte). Set the start address of E"FROM, set the number of data to 16 (D-75), and output a write signal.As for the shutter speed, of the four 7-segment displays for this display, only the right end is "-"
is the data to be displayed, and the data is not to be displayed as the aperture. Also, for film sensitivity, there are 4 segments that display the film sensitivity (same part as the shutter speed above)
Among them, only the rightmost two segments are data for displaying "-" and are data not to be displayed as exposure correction. The lens data is 4 which displays the focal length.
Among the three segments, the rightmost three segments are set as data to be displayed as "-1", and data is set that is not displayed as the open aperture value. Set the film sensitivity to N+1 (direction) data. This means, for example, 12
This allows you to see this when shooting with the darkest film. In other words, it indicates the end point of the photographic data for the previous film. As a result, it is possible to prompt the user to prevent overwriting, and also to know the delimitation point between old and new data.

The display contents are shown in ◯O of Fig. 41(C). When there is no data at the address for the next number of films (for example, when a new IC card is inserted), the symbol ■ is displayed.

When there is data, the display will be as shown in ■ according to the mode. O is a normal data display, which will be described later.

An example of a data memory card will now be described with reference to FIG. 41(C). As shown in FIG. 41(d), first, the first shadow of only 12 sheets is applied to a new film using a card, and then another film is inserted and the 17th to 3rd
It is assumed that up to the 6th film has been photographed using the card, and that the 15th to 24th films of another film have been photographed. At this time, the displayed data is: 0 display for 1st to 12th frames (normal display), 13th and 14th frames display ■, 15th to 24th frames display O, 25th frame display ■, 26th to 36th frames display O becomes.

If there is no communication (V) in step (D-55), communication (
Vr), first judge whether writing has been completed using the above completion signal D-100), and if it has been completed, set the sleeve enable signal in step (D-105), and if it has not been completed, proceed to step D-100). (D-110
) to set the sleep-disabled signal and step (
Proceed to D-115) and perform serial communication according to the clock from the camera as the data output side (D-120
) to sleep.

FIG. 41(a) shows the display contents at the time of setting.

When you press the card set key in the normal display mode (A), the shutter speed, aperture value, AE mode, and rl for the number of films for the first frame will be displayed as shown in (B). is displayed and the card mark flashes.

As shown in (C) and (D), by turning on the up/down key, the camera moves in the direction shown in the figure, increasing the number of film sheets (36) or decreasing it (2), and changing the shutter speed and aperture at that number of sheets. The value and AE mode are displayed sequentially.

Furthermore, when the card key is turned on, 400 (film sensitivity) and +0.5 (exposure compensation value) are displayed as shown in (E), and the film sensitivity and exposure for the number of films are displayed by operating the up/down keys. The correction value will be displayed.

Next, when the card key is turned on, the focal length and aperture F value according to the number of films are set to 1105 (focal length) at (F).
, 4 (open F-number), and further by turning on the up/down key, the value of the number of film sheets changes, and the focal length and aperture F-number corresponding to the number of films are displayed.

Then, the process returns to (B) with the next card machine ON operation. In this state, press the card set key to return to normal display.

Next, the operation of sports cards will be explained.

(3) Sports card When the sports card is attached to the camera, it executes the 42nd reset routine and stores the flags and registers (RAM).
The computer resets everything and goes to sleep (S-5).

Next, connect the camera to the sports car which terminal (C5CD).
When a signal changing from LJ to r)IJ is sent, the sports card executes the interrupt shown in FIG. Here, the sports card performs serial communication once in synchronization with the clock sent from the camera to input data indicating the type of communication (S-15).

From the data from this communication, determine the type.S-2
0), communication (1), set the card as the data input side and perform serial communication (S-30) to receive data (see CA←-CD table) from the camera.

Based on this data, a data setting subroutine is executed and S-35) goes to sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a sports card table.

In communication (TI), ・Auxiliary light prohibited (・1) CS I[-
1-b.

・FL forced 0FF (=1) C3ff
-1-bi・GN restriction release (=1) C
5lt-1-bt・Whether or not the card performs display control C
3I[-1-b4・Card function 0N10FF
C5II-1-bs・With/without manual buzzer
CS■-1-b.

・P shift prohibited (=1) cs U −
2-b.

・Forced P mode (=1) C3n -2
-b.

・Noth V communication (=O) C5n -2
-bt・AF continuous (・1) C3
If -2-bs・Forced A F (=1)
csIf-3-b.

・Tv' Av/display data C3ll-
3-bt・No. ■Communication Yes (・1) CS
II-3-b4・No. ■Communication Yes (・1)
C3U -3-bs・Group specification (・O)
C5Tl-3-b.

・Photometering loop repetition C3U-3-bq
・Hand shake buzzer control (・1) cs n −
All signals other than the 4-be signal are set to "0", and the * mark in the table is set to "1" or "0" depending on the time, and when it is "1", the control is ON, and when rOJ, it is OFF.

For those that have been decided, please refer to r04. In communication ([[), specify group 1 of communication (III) in addition to C3ll-9-bt・1.rl. Communication (IV) consists of two pieces of display control data, so C3I[-1
0-b,, b,=1°1. Otherwise, it is set to "0".

Any data can be stored in the blank areas.

In communication (Vl), a signal indicating that the sleeve is available is sent.

This is because there is no write control to E''FROM.

The data setting subroutine is shown in FIG. 44(a) and will be explained. In step (S-150), display control data
OJ is initially set, and in the next step (S-160) it is determined whether the DISREQ (card name display request) signal obtained in communication (1) is "1", and if it is "1" If so, set the display control data to 'IJ' and set the card display function to 0.
Set N10FF to 0N (1) (S-170 to S-18
5). Next, in step (S-200), the flag (SI
Determine whether or not F) is set, and if not, set this flag as going through this flow for the first time (S-205), reset and start the timer (S-210), and proceed to step (S-215)
Proceed to. Even when the flag (SIF) is set, the process proceeds to step (S-215). Ste Nbu (S-2
In 15), it is determined whether or not the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, set the photometry loop repeat signal to "1" (S-220) and set the card display group and data for only card display (S-22).
2) Return. This display is shown in FIG. - way,
When 10 seconds have elapsed, the 1 photometry loop repeat signal is
0'' (S-225), reset the flag (SIF) (S-226), set the display control data to 0 (S-227), and return.

When DISREQ=O in step (S-160), I
PS= rLJ (Sts + 5FLIN + S
co + 5 cos * Determine whether any of S+ is ON) S-162), reset the display flag (display F) indicating control to display the card name when "rL" S-163) If it is not "L", proceed to step (S-165) without doing anything, and proceed to the flag (SI
Reset F). Thereafter, the process proceeds to the 44th step (b) (S-260), and it is determined whether the self signal obtained in the communication (II) is "1" or not.

When the value is "1", a return is made to prohibit control by camera switch operation (card related). When the self signal is not rlJ, step (C) in FIG.
S-430) and turn on the card switch (SCD)
The card switch (Sco)
When the flag (SCDF) is OFF, this flag (SCDF) is reset (S-460), and then it is determined whether the display flag (SCDF) is set (S-465), and if it is not set, the process returns. If it has been set, the process advances to step (S-170), where control B for displaying the card name is performed. At step (S-430), card switch (
scn) is ON, a flag (
Step (SCIIF) is set or not.
-435), and if it is set, it is assumed that the switch is being operated and the process proceeds to step (S-465). If it is not set, please set it S-4
40) It is determined in the next step (S-445) whether or not the card function is currently ON, and if it is ON, it is set as OFF (communication H data) (S-450).
) Return. If it is OFF, turn this on (communication H
data) and proceeds to step (S-170), where card name display control is performed.

Returning to Fig. 43, when it is not communication (1), communication (It)
When communication (II) is set, the card is set as the output side to output the data set above to the camera, and serial communication is performed 10 times (S-50).
) to sleep.

If it is not communication (II), determine whether it is communication (I[[) or not. S-51). If it is communication (I[[), use the card side as input (S-52) and start serial communication. The process is repeated 15 times (S-53) to input camera data, and in the next step (S-54) data for controlling the camera is calculated (including exposure calculation), and the process goes to sleep. This calculation will be described later. If it is not communication (I[[), determine whether it is communication (■) S-55), if it is communication (rV), set the card to the output side S-60), and determine whether it is display control. S-65), display control outputs display data (5-TO), sends the address and performs serial communication 9 times (S-75), and sleeps when not in 0 display control (5-TO). Tv, AV data), Tv
, Av data address is specified, serial communication is performed four times (S-85), and sleep is performed.

When it is not communication (rV), it is assumed that it is communication (Vl),
First, with the card as the output side, serial communication is performed according to the clock from the camera (S-125), and the card goes to sleep.

Next, referring to FIG. 45, the step of FIG. 43 (S-54
)'s 8ε (exposure) calculation will be explained.

■Calculate the reference value T□ of shutter speed in order to sound the buzzer to warn of camera shake.

A lens with a long focal length is likely to cause camera shake no matter how fast the shutter speed is, so the longer the focal length, the faster the TvH.

zFz = 16 X Iogzf150 +56(f
; Lens focal path 1iii (sleep)) TvM-1,25X
(zFz 56)/16 + 5.875 for example f
=105 mm Tvo';7.2 (SS 'r
143) f -210ma+Tvo';8.5 (
SS #353) In ■, calculate TvM in the same way as in ■.

This is to warn you if Tv becomes extremely slow even with a wide-angle lens.

zFz=16X Iogzf150+56 (r: focal length of lens (mm))? ,,=1.125 X(zFz-56)/16+5
．． 875 For example f = 35mm Tv++'i5.
3 (SS !; 37) Even if the focal length r of the F=2.80 lens is short, the camera shake warning buzzer Bz will sound when using an extremely slow shutter speed.On the other hand, if f is long, the buzzer Bz will sound when the shutter speed is faster than a certain level. Limit T□ to prevent it from ringing.

Calculate the shank velocity at the bending point of the QAE calculation diagram.

When the focal length f is f < 50 mm, there is little chance of camera shake, so set the aperture to a slightly narrow line.

When f≧50m+a, if the subject is close and appears large, the line is changed depending on the image magnification to increase the shutter speed assuming a moving subject.

Then, when image magnification data cannot be used (AEFLAG of input data during communication (In) = O), Tvf at the bending point is uniformly set to rvr-to. When it can be used (
b, = 1), β>1150 Tvr=11 2/100≦β<1150 Tvf=10β<1/1
00 Tvt=9.

When the spot key is turned on (AFL=1),
Exposure value EVs is calculated from spot brightness (BVc) - BVt brightness -, and when the spot key is OFF (^EL = 0), exposure value EVS is calculated from brightness (BVs) - main subject brightness -. do.

Then, the maximum aperture value (AVmax) + minimum (AVmi)
n orAV, ), maximum shutter speed (TVmay
), the EVs obtained above from the minimum (TVmin) exceeds the control limit (AVmax x TVmax or AVo
+TVmin), the above limit value is set and the process proceeds to camera shake determination.

When the above limit value is set, shutter speed TV = EVs - AVo, TVc = T
V, AVc = AV.

Then, the process proceeds to camera shake determination, but if the TV is below the bending point (TVF) of the program diagram and the TV exceeds the bending point (vF), the slope of the AE calculation is changed depending on the focal length of the O lens.

If the focal length is long, use a line that increases the shank speed to prevent camera shake.

If the focal length is short, consider the depiction and set the aperture to a narrow line.

The program line mentioned above f-38 cabinet F=2.8 f = 105mm F = 4.5 f = 210w F = 4 Figure 46 shows what is written about the three lenses.

Here, each three-tree line of f = 105m and f = 210mm is β<1/100.1150<β≦ from the top.
1/100, β≦1150.

When the aperture value AV obtained in this way exceeds AVmay, the shutter speed T is set as AVc = AVmax.
Let Vc=EVs-AVmaxz. Calculated aperture value A
When V does not exceed AVmay, TV = EVs
- It is determined whether the TV determined by AV exceeds Tl/wax, and if it does not, AVc = AV, T
Let Vc = TV, and let Vc = TV
max, and recalculate the control aperture value AVc from AVc = EVs - TVmax.

[F] When camera shake occurs, communication (I
I) signal (S ll-1-bt) is set to 1, and when the hand is not shaking, this signal (s U-1-bt) is set to 0.

And the communication (IV) signal CTl? LB focus (b
. ) is set to O to prohibit flash emission.

Next, the operation of the auto depth card will be explained.

An auto-depth card is a card that allows you to focus on both the main subject and the background.The main subject is placed in front of the depth of field, and the background is brought into focus as much as possible.

(4) Auto depth card When the auto depth card is attached to the camera, it executes the glue set routine in Figure 48 and sets the flag.

Register (1? Reset all eight assistants 0-5),
Go to sleep.

Next, connect the camera to the auto depth card terminal (C5CD)
When a signal changing from "L" to "rH" is sent to the auto-depth card, the auto-depth card executes the interrupt shown in FIG.

Here, the auto-depth card synchronizes with the clock sent from the camera and performs serial communication once to input data indicating the type of communication (0-15), and determines the type from the data from this communication. 0-20),
If it is communication (1), set the card to the data input side and set it to 0.
-25), performs serial communication (0-30) and receives data (see CA-CD table) from the camera. Execute the data setting subroutine based on this data.
35) Sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using an auto-depth card table.

In communication (II): ・FL forced ON C3n-1-b
l・GN restriction release (・1) 'C3n-
1-bi・Whether the card performs display control CS If-
1-L・Card function 0N10FF C5I
f-1-bs/snap drive bit cs l
l-1-bb・With/without camera shake buzzer C5ll
-1-b.

・P shift prohibited (・1) C5ll-2
-b.

・Forced P mode (=1) C3ff-2
-b.

・Noth V communication (=O) cs lt-2
-b.

・AF Rawanhot (=1) cs ll-2
-bi・Forced AF (・1) CS ■
-3-b.

-TV -A,/display data CS [-3-b
i/Communication (TV) Yes (=1) CS lt
-3-b.

・Communication (In) Yes (・1) C5ll-3
-bs・Group specification (・0) CS I
f-3-bb/photometering loop repetition cs n
-3-b.

・Hand shake buzzer control (=l) cs ll-4
-bo Note that the AF raw shot here refers to prohibiting the tracking mode after focusing on the camera side, and the camera side prohibits the tracking mode by manually inputting this signal (in addition, On the camera side, this is called a forced one-shot).

All signals other than those mentioned above are set to "0", and those marked with * in the table are set to rl or "0" depending on the situation, and when it is "1", it is set to 1BON, and when it is "ro", it is set to OFF. For those that are fixed, determine rO' and 'IJ.

In communication (n), in order to specify groups Go and G+ of communication (III) in group communication of communication (IV), csII-9-(bo, bl)・1.1. Communication (
rV) is display control data and lens drive data, so CS■-10-1g, bl bi・1, 1.
1. Otherwise, it is set to "0".

Any data can be stored in the blank areas.

In the communication (Vl), a sleep permission signal is sent.

The data setting subroutine is shown in FIG. It is determined whether the obtained DISREQ (card name display request) signal is "1" or not, and if it is "1", the display control data is set to "1" and the card display function 0N10FF is set to 0N (1). ), to (0-170.0-
175) 0 Then, in step (0-200) flag (
SIF) is set, and if it is not set, this flag (SIF) is set (0-205) to go through this flow for the first time, and the timer is reset and started (0-210). ) step (
The process proceeds to step (0-215) even when the flag (SIF) is set. In step (0-215), it is determined whether or not the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, the photometry loop repetition signal is set to "1" and data for performing only card display and card display are set (0-222) and the process returns. This display is shown in FIG. On the other hand, if 10 seconds have elapsed, the photometry loop feedback signal is set to "0", the flag (SIP) is reset (0-226), the display control data is set to "0" (0-227), and the process returns.

When DISREQ=0 in step (0-160), IP5=' L J (i.e. switch SEW
+ 5FLIN + SCD, 5cos + St
0-162
), reset the display flag (display F) that indicates the control to display the card name when it is "L" 0-163), 'LJ
If not, proceed to steps (0-165) without doing anything, and reset the flag (SIF). After that, proceed to step (0-260) in FIG. 50(b),
It is determined whether the self signal obtained in communication (II) is "1" or not.

When “1”, camera switch operation (card related)
Returns to prohibit control by.

When the self signal is not "1", the process proceeds to step (0-430) of FIG. 50(C) and the card switch (SC0
) is turned on, and then turns the card switch (
S. , ) is OFF, this flag (SCDF) is reset (0-460), and then the display flag (display F) is determined whether or not it is reset (0-465).
), when the cent is not returned. When it is set, the process advances to step (0-170) and the display of the card name is controlled.

When the card switch (SCD) is ON in step (0-430), a flag (ScJ) indicating that the card has passed through this point
It is determined in step (0-435) whether or not the switch is set, and if it is set, it is assumed that the switch continues to be operated and the process proceeds to step (0-465). If it is not set, please reset it (0-440),
It is determined in the next step (0-445) whether the card function is currently turned on, and if it is turned on, the
Returns (0-450) as FF (data of communication (n)). If it is OFF, turn it ON (Communication (
II) data) and proceeds to step (0-170) to control the display of the card name.

Returning to Fig. 49, when it is not communication (1), communication (II)
0-40), and when it is communication (II), set the card as the output side to output the data set above to the camera, perform serial communication 10 times, and then perform serial communication (0-40).
50), sleep.

If it is not communication (II), determine whether it is communication (I [I) 0-51), and if it is communication (I[[), use the card side as input (0-52) to start serial communication. It repeats the process 18 times (0-53), inputs camera data, calculates data for controlling the camera (including exposure calculation) in the next step (0-54), and goes to sleep. This calculation will be described later.

If it is not communication (I [l), it is determined whether it is communication (IV) or not (0-55), and if it is communication (IV), it is determined that the card is on the output side (0-60), and whether it is display control or not. If it is display control, the display data should be output (0-70), and the address should be set.
Then, it performs serial communication nine times (0-75) and goes to sleep.

When display control is not J (TV, Av data), TV, A
Specify the data address of y, perform serial communication five times (0-85), and go to sleep. If it is not communication (■), it is assumed that communication is (Vl), and first, serial communication is performed in accordance with the clock from the camera (0-125) using the data card as the output side, and the device goes to sleep.

Next, FIGS. 51(a) and 51(b) show flowcharts for performing AE (exposure) calculations for the auto-depth card, and will be briefly described.

First, the FLG inputs whether it is in focus or not through communication (II).
It is determined whether the bit (bo) of O is "1" or not. If it is not in focus (b, = 0), the depth aperture (AVDEP) is set to the shallowest open F-number (AV.) and the process proceeds to O.

This is because this card focuses on both the subject position and the background, so this information cannot be obtained unless the subject position is in focus. For this reason, if you consider the maximum aperture value that indicates the shallowest depth, and place the subject in front of this depth (on the camera side), the subject will be in focus no matter what aperture value you use. This is because when 0 is in focus, (bo-1), (α・
δ is a constant related to depth). This F value is an aperture value for covering the depth from the ω position at a position that is half of the current feed-out amount (Lp) from the ■ position.

Change this to Appenkusui direct^VDEP (■).

In step (2), an aperture value is calculated to satisfy the depth from the current lens position to the flash position.

Based on this value, the lens shift value is calculated.

t and p are 0 at infinity and increase in value as the distance gets closer. At infinity, there is a considerable depth of field, so there is no need to shift the lens, so set F=O. As the subject gets closer, the lens must move more to capture the background, so the F number increases. AVDEP sought
However, the maximum aperture value (
Avllall) or more, the limit value is set to aVO or AV, □.

In step O, a reference value (Tvt) of shutter speed is calculated in order to sound a buzzer to warn of camera shake. Lenses with long focal lengths tend to cause camera shake, so (T
wt) becomes faster (see Figure 53)
.

zFz=16X1ogzf150+56 (f: lens focusing ability # (film)) If the shutter speed becomes faster than a certain level (TVF>8), set TVF=8 to prevent the camera shake buzzer from sounding.

When the flash switch is not ON and the spot key is ON (AEL=1), the exposure value E is determined from the spot brightness (BVc) (BVz brightness).
Va, or when the spot key is turned off (A
EL=0), brightness (BV, ) - Main subject brightness -
The exposure value Evs is calculated from -.

Then, from the maximum aperture value (AV, □), minimum (AV, i, or Avo) and the maximum (TV □ Exceeds TVsax or AV6+
TV+mz, less than 1), the above limit value is set and the process proceeds to camera shake determination. When within the above limit range, AV=A
Camera shake when shutter speed is set to vo (rvr)
If below, TV = Evs −Avo, TVc
= TV, AVc =^vO, and proceed to camera shake detection. However, when the TV exceeds the camera shake (TVF), in O, when Evs > Avoz + Tvt, priority is given to no camera shake, and in order to increase the depth of field. Set the aperture to the narrowing line (110), EDS≦A
When VDEP+TVf'', the control aperture value AVc←^
, control shutter speed TVc=TV. EVs
> When it becomes Avotp + Tvf, this (AV
The effect is the same even if you close down the aperture more than DEP), so AV,
Create a diagram that increases TV at the same rate (see Figure 54)
.

When the obtained AV exceeds the maximum aperture value (AVmax), 1llAVc to AVmax? II TVc
= EVs - AVmax.

When the calculated AV does not exceed the maximum aperture value (AVmax), the calculation TV = [! Vs-A
Find V, determine whether this exceeds TVmay,
If it exceeds, set the control 11TVc to TVa+ax and control W.
AVC is recalculated as AVc=EVs-TVmax. When the calculated TV does not exceed TVmay, the calculated TV is set as the control TVc.

When [F] (that is, the shutter speed TVc obtained is
N), set the communication (■) signal (S If-1-by) to 1 to issue a camera shake warning, and set this signal (SU 4-by) to 0 when there is no camera shake. .

Then, bit (bo) of the communication (IV) signal CTRLH
) is set to O to prohibit flash emission.

When the flash switch is turned on, the aperture value (AVD) at that time is determined by AVD = IV + SV - DV.

0-1--- AV, ≧AVOZ (Open F value AVOK
) or more.

0-2-...The luminance difference ΔBV with the background is BVA (BV
4) - BVS (main subject brightness).

0-3... Determine whether or not there is a previous calculation value (ΔBν).

0-4-1 If not, then (7) AB≧1/16
It is determined whether or not BVs + 0°25. This takes into account light from the background that wraps around the main subject by increasing the determination level as the main subject becomes brighter.

ΔBV≧1/16 BVs + 0.25 If yes, proceed to flash control.

0-5.- When there is a previous calculation value (ΔBV), it is determined whether or not the light emission mode (flash mode m) is selected based on the previous calculation result.

0-6- When in light emission mode, ΔBV≧1/16
Determine BVs. It is made easier to emit light by making it smaller by 0.25 EV than 0-4. ΔBV
If ≧1/16 BVs, proceed to flash control.

0-7・-When not in previous flash mode, Δ8v≧1/1
Determine 6BVs + 0.5. From 0-4, 0.2
By increasing the size by 5 EV, it becomes difficult to emit light.

0-12 when 0-8-AVD≦AVoz (when AVD is below the open F value) ΔBV < 1/16BVs + at 0-4
0.25 (ΔBV < 1/16BV at 0-6 when D
ΔBV < 1/16BVs + at 0-7 when s(7)
It comes at 0.5 no.

Below this, the main subject (EVs) is low brightness judgment level/I
/ (TVF+AV, 2+AEV) is determined, and when it is less than, flash control is performed. ΔE
V is ΔEV·−0, 25 when there is no previous calculated value, and it is brighter when the previous light is emitted. If the previous non-emission time was low light and the condition is non-emission, the process advances to 0-13 to control flash non-emission.

Next, flash control will be explained.

・When the spot key is turned on (AEL・1),
It is determined whether or not the previous spot key ON calculation was performed, and if the previous spot key calculation was performed, the flash adjustment is performed using the previous control aperture value (AVc) and the control shutter speed (TVc). Proceed to optical calculation (F.

~F3), When the spot key is not ON, or when the calculation of the previous spot key ON has not been performed, calculate the exposure value (EVA) from the background brightness (BVA) (F-4)
.

This exposure value (EVA) is the synchronization speed (TVX) and the aperture F (
Direct (AVoz) + 1.5 value or less and main subject exposure value (
When EVs) is equal to or less than the synchronization speed and the aperture F value -1.0, both the background and the main subject are considered dark. Then, it is determined whether the spot key is turned on or not, and the spot key is turned on.
When the control aperture value (AVc) is not set to AVD,
In addition to controlling the proper exposure of the main subject with flash light,
I am trying to increase the depth of field even a little. Then, the control shutter speed (TVc) is set as the tuning speed and the process proceeds to dimming calculation.

Background exposure value (EVA) is EVA > TVx + AV
oz + 1°5 or when the main subject exposure value (EVS) is EVS > TVx +AVoz-1 or the spot key is ON, determine whether ΔBV (BVA-BVs) is 2.5 or more, and if it is 2.5 or more The exposure control value is set to BVA-1, 5 for the backlight condition, the background is overshot to make it appear as if it is backlit, and the main subject is properly exposed with flash light. If it is less than 2.5, it is assumed that there is no backlight and the background is set to 1.
I am trying to under-expose the background and main subject by using natural light and background light. (F-9) Open F value (
^V.

Determine whether the shutter speed in case 2) is equal to or higher than the synchronized speed, and when it is equal to or higher than the synchronized speed, set the control shutter speed (TVc) to the synchronized speed (TVx), and set the aperture value (AV).
is calculated from EVc - AVx, and the aperture value (AV) is A
It is determined whether the aperture value is equal to or greater than Vn, and when it is equal to or greater than AVD, the control aperture value (AVc) is set to AVD, thereby preventing the main subject from being underexposed.

When AV<AVD, the control aperture value (AVc) is set to AV.

Then, each flash dimming level is calculated.

When TV<TVx(7) at F-12, the control aperture value (AV
c) is the open F value (AVoz), determine whether the TV is at least the minimum shutter speed (7Vmin), and if it is, set the control shutter speed (TVc) to the TV, and set the TVmin to
When the control shutter speed (TVc) is less than TVmin
Proceed to calculate the flash dimming level.

To explain this dimming level calculation as shown in FIG. 51(C), the exposure value (EVc) is calculated from AVc + TVc, and [
It is determined whether iVc - RVs (exposure value of main subject)>0.

When EVc - EVs ≦O, the correction amount is set to χ·1.5, the amount of light emission (light control amount) is set to under, and the main subject is not overshot, and the camera advances toward the door.

When EVc −EVs > 0, EVc −EVs
> 3, and determine whether EVc - EVs >
3, proceed to the door with the correction amount χ·O. EVc −
When EVs ≦3, Z= +A(EVs −EVc
+ 3) and proceed to the door. Determine whether image magnification (β) can be used, and if it can be used, β≧1/7 → TTL
= χ 1/7〉 β → TTL = χ10.51/10>
β≧1/40 → TTL Yoχ+0.8751/4
0> β → TTL - χ + 1.25, and as the subject occupies the screen becomes smaller (β is small), the amount of reflected light returned from the subject decreases, the dimming completion signal is delayed, and the amount of light emitted increases. This results in overexposure. In order to correct this, the amount of light emission is reduced as β becomes smaller.

When β cannot be used, assuming that there are many subjects with 1/10>β≧l/40, TTL·χ10.875 is used. Then, control dimming (!t(SVc)) is added to film sensitivity Sv by TTL.

After completing the dimming level calculation, a flash light emission signal is set and camera shake Bz is turned off.

Then, it is determined whether the control aperture value (AVc) > AVDEP, and when AVc > AVDEP (7), the AVF (
Aperture value for determining the amount of focus shift) is AVDI! Let it be P. This brings the background (up to oo) and the main subject into focus.

When AVc≦AVDEP, AVF=AVc, the main subject is placed at the forefront of the depth of field (the one closest to the camera), and the background is brought into the depth of field as far as possible. Then, it is determined whether or not it is in focus, and if it is not in focus, the amount of focus shift (
ΔLP)=O. When in focus, convert AVF to F using a table, and calculate the in-focus amount (ΔLP) as ΔLP −
Calculate by FxKEL xα×δ.

This will be briefly explained in FIG. 55.

In FIG. 55, the X mark indicates the lens position (subject position). For the depth of AVDEP, AVc is AVD
The depth when it is equal to or greater than EP is narrower and closer to the depth of AVDEP. At this time, the lens drive is controlled so that the main subject is in front of the depth of field. Note that the dotted line indicates that the image is out of focus (≠AVDEP). next,
When AVc exceeds AVDEP, the depth becomes closer as a whole and the range becomes wider. At this time, lens control is performed to the position determined by AVDEP.

In this case, the focus is up to the ω position.

Next, the operation of the bracket card will be explained.

Here, the bracket card is a card used to take pictures by changing the exposure by a certain amount to overexposure or underexposure.

(5) Bracket card When the bracket card is attached to the camera, it executes the reset routine shown in Figure 56, and sets the flag, register (RA)
B-5), the information in the H''PROM, the number of sheets (N) and the amount of shift (ΔEv) are transferred to RAh, and it goes to sleep (B-10).

Next, when a signal changing from "L" to rH is sent from the camera to the terminal (C5CD) of the bracket card, the bracket card executes the interrupt shown in FIG. 57. Here, the bracket card performs serial communication once in synchronization with the clock sent from the camera to input data indicating the type of communication (B-15).

From the data from this communication, determine the type B-2
0), communication (1), use the card as the data input side B-25) and perform serial communication to receive and receive data (see CA-CD table) from the camera. Based on this data, the data setting and exposure calculation subroutines are executed (B-35, B-37), and then the release switch (S
B-38), O
When set to N, AF is prohibited (・1) (B-3
9), Sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a bracket card table.

In communication (rl), ・FL forced response F (=1) C5If -1
-b2・Does the card perform display control? C3U 4-L
・Card function 0N10FF C5It -1
-b.

・No communication (V) (=0) cs II −
2-bx/release prohibited CS II
-2-b:+・Forced quick copy (=1) C
S II-2-b4・AF prohibited
C5U-2-b.

・ΔAv, ΔTv data (=1), csl[-
3-b.

・TV, A, /Display data (=O) C3II-3
-b3・Communication (IV) present (=1) C3I
t -3-b4・Communication (I[l) absent・0)
CS II-3-BS・Communication type
C3II -3-bt+・Photometering loop repetition
All signals except C3n-3-b7 are set to "O", and the * mark in the table indicates "1" or "0" depending on the time, and when it is "1", the control is ON, and when it is "OJ", it is OFF. shall be.

For those that are fixed, determine ``ro'' and ``IJ.'' In communication (It), in addition to that, in communication (■), the number of direct address type communication data (2 times), the address (C5II-7, 8), Communication in group communication (I[
Since there is no [), C3It -9-(bl , bz)・
0゜0, communication (■) is only for display, so CS rl −
10-bl・I.

Otherwise, it is set to "0".

Any data can be stored in the blank areas.

For communication (rV), the data is ΔAv·8Tv, which is stored in the RAM.

In the communication (Vl), a signal indicating whether or not the sleeve is available is sent.

The subroutine for data setting is shown in FIG.
Initially set to prohibit AI' (0) and prohibit photometry loop repetition (=0).

Next, in step (B-150), it is determined whether the cancel signal is 1, and if it is "1", the release is prohibited and B-1
52), if it is not "l", determine whether N1 is N-1 or not.B-151), if N-1, prohibit the release as the set number of shots has been completed (B-152), otherwise Without doing so, each of them proceeds to step (B-160).

DISRE obtained from communication (1) in step (B-160)
Determine whether the signal [l (request to display card name) is “1” or not, and if it is “1”, change the display control data to “
1" and set the card display function 0N10FF to 0N (1),
Set the group specified data to (0) (B-170゜B
-195). Next, in step (B-200), it is determined whether the flag (SIF) is set, and if it is not set, this flag (SIF) is set as if this flow is going through for the first time (13-205). , reset and start the timer (B-210) and proceed to step (B-215). Even when the flag (SIF) is set, the process proceeds to step (B-215). In step (B-215), it is determined whether the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, set the photometry loop repetition signal to "1" (B-220),
Set the card display base and data for card display only (B-222) and return. This display is the fifth
On the other hand, when 10 seconds have elapsed, the flag (S
IF) is reset (B-226), the display control data is set to "0", and B-227) returns.

When DISREQ=O in STENBU (B-160), IP,='LJ (S tw + 5FIN +
Either Sea + 5cos + Sr is ON
B-162) Display flag (display F) indicating control to display card name when "rL"
B-163) If not rL, proceed to step (B-165) without doing anything and reset the flag (SIF). After that, Fig. 58(b)
Proceeding to step (B-260), it is determined whether the self signal obtained in communication (n) is [1, or not.

When the value is "1", a return is made to prohibit control by camera switch operation (card related). When the self signal is not “1”, the card setting switch (Sco
s ) is turned on (D-265
), when it is ON (signal 1), it is determined in step (8-270) whether or not the flag C3cos IF) indicating that it has passed through is set, and if it is set to 1, Proceed directly to step (B-276),
If it is not set, set it (B-2
75) to step (B-276). In this step (B-276), it is determined whether or not it is being set. If it is not being set, it proceeds to step (D-405), and the display indicating that it has entered the setting mode. Take control.

If setting is in progress (SETF.1), an operation has been made to exit from setting, so the display control is not performed and the process returns.

When the switch (Sc++s) is OFF in step (D-265), the process proceeds to step (B-280), and it is determined whether or not the flag (Sc++5IF) is set. If it is not set, step (B- Proceed to 310). If it is set, reset it (B-285) and set the flag (SETF) indicating that data is being set.
Determine whether or not is set in step (B-290), and if it is set, reset it (B-295), set the E"PROM write signal (signal sent to the camera) to 1, and directly specify the address. Set the
ΔAv.

Output ΔTv (B-300) and proceed to step (B-310). This exits from the setting process and writes the data to the E"PROM in the IC card. Flag (SETF) indicating that setting is in progress. If not set, set it (B-305) and enter the data setting mode, and proceed to step (B-310).Step (
B-310), if setting is in progress (SETF・1),
Determine whether the card switch (seD) is turned on or not based on the data of communication (II) D-315), O
If it is N (Sc++・1), determine whether or not the flag (SeolF) indicating that it has passed here is set (B-320), and if it is set, proceed to step (B-345). , if it is not set, please set it in step (B-325).ScD!
F=1), in the next step (B-330), the change mode is advanced by one as 1←→2, and the process proceeds to step (B-345).

Here, change mode 1 is - Setting of shift amount 2 is - Setting of number of images.If the card switch (scn) is not turned on in the above step (B-315) (ScoJ),
In step (B-335), it is determined whether or not the flag (ScDIF) is set, and if it is not set, it is assumed that no operation has been performed, and step (B-345) is performed.
, the switch (Sc++) is set to O.
Assuming that it goes from N to OFF, step this flag (
B-340) and then step (B-345).
).

In step (B-345), the up switch (S, p
) is ON, and if it is (s,, = t), determine whether the mode is 1 (B-350), and if the mode is 1, change from 1 → 2 → 3. After advance 3, proceed cyclically as if returning to 1 (B-355)
.

Here, when in mode 1 1 is 0.3 Ev 2 is 0.5 Ev 3 is 1. OEv is the amount of exposure shift.

When it is a mode gas, it progresses 1 → 2 → 3, and after 3 it goes back to 1, cyclically (B-365).

number of films.

After completing the changes in each mode, step (B-40
Proceed to 5). When the up switch (Su, ) is OFF, determine whether the down switch (Sd, ) is ON or not (B-375); if not, proceed to step (B-405)-Q, ON. If it is,
This switch is the same as the above switch (S, . . .) except that the direction of change is reversed, so a description thereof will be omitted.

After completing the processing of (S, p) and (Sd,), the process proceeds to step (B-405) and subsequent steps, and display control/1. Release prohibited・1. AP prohibited・1. Group designation = O1 Photometry loop repeat - Set to 1, set the display data during data setting, and return. Note that the display during this setting will be described later. As a result, the camera performs the function of continuing display regardless of display control by the card, release prohibition, AF prohibition, or camera power hold timer.

In step (B-310) above, setting is not in progress (SET
F・0), step (C) in FIG.
B-430) and set the card switch (SC!+) to O.
If the card switch (Scゎ) is OFF, this flag (SCDF) should be reset. B-462), returns if not set. If the display flag is set, the process advances to step (B-170) to control the display of card names. When the card switch (SCO) is ON, the flag (SCDF) indicating that the card has passed through this
) is set or not. B-435)
, is set, it is assumed that the switch continues to be operated and the process proceeds to step (B-462). If it is not set, reset it (B-440) and determine whether the card function is currently turned on.B-44
5) If it is ON, turn it OFF (Communication UI)
data) and [1-450), 7 lag display (display F
) and return (B-451).
If it is OFF, turn it ON (communication H data) and turn it on (B
-455), set the display flag (B-456)
, the process proceeds to step (B-170), where card name display control is performed.

Returning to Fig. 57, if the communication is not (1), it is determined whether the communication is (H) or not (8-40), and when the communication is (It), the card is placed on the output side in order to output the data set above to the camera. Toshiki B-45), serial communication was performed 10 times (
B-50) Sleep.

If it is not communication (n), it is determined whether it is communication (IV) or not (B-55), and if it is communication (TV), the card is set to the output side B-60), and whether or not it is group specified is determined in step (B-55). Judgment is made in steps B-65), and when the group is specified, the display data is output. move on. If the group is not specified (direct address specification), specify the address of the changed data of 8 Tv and ΔAv (B-80), perform serial communication twice (B-85), and proceed to step (B-90). In step (B-90), it is determined whether the E"FROM write signal is set, and if it is set, the 1-byte data of Nα of the mode (II) associated with the mode (+) is written to the E"FROM. A write control signal is output in order to write to a predetermined address (B-95). E"FROM
Writing to is done by hardware, microcontroller (μC)
need only send control signals. And write end signal (
This signal is automatically set by the hardware configuration when writing is completed (B-100) and goes to sleep. Sleeps immediately when there is no write signal.

If there is no communication (■) in step (B-55), communication (
Vl), first determine whether writing has been completed using the above completion signal, and if it has been completed, set the sleep enable signal (B-110), and if it has not been completed, set the sleep disable signal. Te (B-115)
, respectively, proceed to step (B-120), perform serial communication according to the clock from the camera as a data output side, and go to sleep (B-125).

The exposure calculation subroutine in the above flow is shown in detail in FIG. 60. In Figure 60,
If the card function is OFF, the process returns without doing anything, but if the card function is ON, step (B-505)
) to (B-520), the mode of shift amount is determined and the shift amount (ΔEv) is set, and step (B-520) is performed.
In steps 525) to (B-540), the mode for the number of images to be shot is determined and the number of images is set. After these determinations and settings are completed, step (B-545) (B-5
55) Make initial settings in (B-560), and set the first frame to the proper exposure. And the release switch (
A counter N that indicates the number of sheets when S2) is turned on.

Add l to , determine N, and perform steps (B-570), (B-575), ..., (
B-595) Change the exposure amount in the following order.

After that, proceed to step (B-600) and determine the exposure mode. In P mode, %ΔEν is corrected for each aperture shutter speed, and in A and S modes, the calculated shutter speed and aperture value are corrected. , in M mode, you want to change the aperture value when the aperture change switch is ON, and the shutter speed when it is OFF.
ΔTν and/or heheν are set according to each mode so as to be corrected by ΔEv, and the process returns.

FIG. 61 shows the display during data setting in the case of a bracket card.

Figure (a) shows the normal display. If you turn on the card setting key in this state, the display changes as shown in (b), showing the previously set exposure amount (ΔEν) and the number of films (
N) is displayed, and when this card setting key is turned OFF, only the part indicating the exposure amount will blink as shown in (C). Here, each time the up key (up switch) is turned on, the sequence changes from (C) → (d) → (e) → (C) →..., and each time the down key (down switch) is turned on, the sequence changes from (C) to (
It changes as e) → (d) → (C) →...

For example, if you turn on the card key in state (d), the number of films will flash (become a barrel), and if you turn on the up key from state (6), each time you turn on the
ge) → (member →...), and when you turn on the down key,
Every time it is turned on, (g) → (f) → (c) → (g) →...
・Changes to

Then, turn on the card setting key in the state (for example, above).
Then, the display becomes normal as shown in (i) and enters the standby state.

Next, the operation of the close-up card will be explained.

Here, the close-up card is used when taking close-up shots.

(6) Close-up card When the close-up card is attached to the camera, the 62nd
Executes the routine of resetting the diagram and flags.

Reset all registers (RAM) and go to sleep.

Next, when the camera sends a signal that changes from "L" to "H" to the card's terminal (CSCD), the card
Execute the interrupt shown in the figure. Here, the card performs serial communication once in synchronization with the clock sent from the camera to input data indicating the type of communication (E-
15).

From the data from this communication, determine the type.E-2
0), communication (if yes, use the card as the data input side E-25), perform serial communication (E-30), and receive data (see CA-CD) from the camera.

Based on this data, a data setting subroutine is executed (E-30), and the computer goes to sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a close-up card table.

In communication (II): ・FL forced 0N (=1) CSn-1-
bl/GN restriction release (・1) C5If
-1-b.

・Whether or not the card performs display control C5n -1-b<・
Card function 0N10FF C5II -1-
bs/shake buzzer presence/absence C3U-1-b
L/P shift prohibited (=1) C3U -2
-bl・Forced P mode (=l) cs n
-2-bl・Noth V communication (=0) c
s n -2-bt/Release prohibited (=1)
cs I [-2-b3, AF Rawanjot (・1)
C3II-2-ba”rv, AV/
Display data C5II-3-bs・No.■Communication present (
=1) CS II-3-b4・Chapter ■
Communication present (-1) CS n -3-bs
・Group specification (=0) cS It −
3-bb/photometering loop repetition CS I[-
3-tr/shake buzzer control (・1) C5I
I-4-be・AF spot (=1)
CS n -4-bl・Low contrast scan prohibited (=1)
C5II-4-bgIn the above, AF raw shot means prohibition of AF tracking mode after focusing by the camera.

In addition, the reason for using the AF spot in the above is that in the case of close-up photography, the image magnification is large, so even the slightest movement of the subject can cause the focus to shift. This is to prevent focus detection information from areas that have moved, which can sometimes make it difficult to focus. Also, the reason why low-contrast scanning is prohibited is that with a macro lens, the range in which the subject is in focus is narrow, and the lens quickly becomes low-concentration.

In addition, all signals other than the above are set to "0", and from the table, the * mark is set to "1" or "0" depending on the time, and when it is "1", the control is ON, and when rQ, it is OFF. . "0" for things that are fixed.

Decide on "1". In communication (n), in order to specify group 1 of communication (III) in group communication, CS ll-9-bl・1. There are two types of communication (IV): display and control data, so C3I [-10-bl, bg
・1,1. Otherwise, it is set to "0".

Note that in the above table, any data may be stored in the blank areas.

In the communication (Vl), a sleep permission signal is sent. This is because there is no write control to E''FROM.

Next, the data setting subroutine is shown in FIG. 64(a) and will be explained. First, steps (E-146) and (E-
147), set display control data to "0" and release prohibition to "
0'' and proceeds to step (E-160).

Step (E-1) checks whether the DISRE[l (card name display request) signal obtained in communication (1) is rl.
60), and if it is "1", set the display control data to "1" and set the card display function 0N10FF to 0N (1).
(E-170, E-175), followed by flag (
E-20
0), if it is not set, this flag (SIF) is set as if this flow is going through for the first time (Et-
205), reset and start the timer (E-
210) Proceed to step (E-215), flag (SI
Even when step F) is set, step (E-21
Proceed to 5). In step (II!-215), it is determined whether the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, set the photometry loop repetition signal to "1" (E-220), set the card display name and data for displaying the card only (E-222), and return. This display is shown in FIG. On the other hand, if 10 seconds have passed, the photometry loop repetition signal is set to "0" and the E
-225), reset the flag (SIF) E-2
26), set the display control data to “0” (E-227
), return.

If [1ISREQ=O in step (E-160) above, proceed to step (E-162) and terminal IP%
LJ (i.e. switch S tH+s FL+N +
Determine whether any of SCD + SCDS + S+ is ON) and reset the display flag (display F) that indicates control to display the card name when it is "L". E-163),' If not, the process proceeds to step (E-165) without doing anything.

After resetting the flag (SIF) in this step (E-165), step (E-260) in FIG. 64(b)
Then, it is determined whether the self signal obtained through communication (It) is "1" or not.

When it is "l" in 22, the program returns to prohibit control by camera switch operation (card related). When the self signal is not “1”, step (C) in FIG.
E-430) and turn on the card switch (Sco)
The card switch (See)
When is OFF, reset this flag (SCIIF) (E-460) and determine whether the display flag (display F) is set (E-465). If not, return. If it is set, proceed to step (E-170) and control the display of the card name.In step (E-430), the card switch (S
c++) is ON, it is determined in step (E-435) whether the flag (SCDF) is set, and if it is set, it is assumed that the switch continues to be operated and the process proceeds to step (E-465). , If it is not set, reset it (E-440), and check whether the card function is currently turned on in the next step (E-44).
Determine in step 5), and if it is ON, return (E-450) as OFF (communication (n) data).

If it is OFF, it is turned ON (communication (It) data) and the process proceeds to step (E-170), where card name display control is performed.

Returning to Fig. 63, if it is not communication (1), determine whether it is communication (■) or not. If it is communication (I[), output the card to output the data set above to the camera. side, performs serial communication 10 times (E-50), and goes to sleep.

If it is not communication (If), determine whether it is communication (I [I) or not. is repeated 15 times (E-53), camera data is input, the next step ([!-54) is to calculate data for controlling the camera (including exposure calculation), and go to sleep. This calculation will be described later. If it is not communication (III), it is determined whether it is communication (IV) or not.E-55), communication (T
V), set the data to the output side E-60), determine whether it is display control E-65), output the display data if display control E-70), and set the address. and performed serial communication 9 times (E-75
), when not in 0 display control to sleep (Tv,
Av data) 'rv, Specify the AV data address, perform serial communication four times, and go to sleep. When it is not communicating (TV), it is assumed that it is communicating (Vl), and first performs serial communication according to the clock from the camera as a data output side, and then goes to sleep (E-25).

Next, the calculation subroutine of step (E-54) in FIG. 63 is shown in FIGS. 66(a) and 66(b) and will be described.

First, in step (E-500), the camera shake limit TvM is calculated from the focal length f, TvH-1,25Xlogz f150 +5.875
The limit of this TV) I is determined by the formula of step (E-50
5) to (E-520).

Subsequently, in steps (E-525) to (E-535), Avc, ^9. In order to perform natural light photography using
, ) and (TVx).

In addition, in steps (E-544) to (E-570), the control limit of the control shutter speed (TvC) and control aperture value (Avc) is calculated from the control limit exposure value at the 0th order, which represents the TVX synchronization speed here. stipulate. Next step (E-575)
Then, it is determined whether the image magnification β is valid or not. If it is not valid, proceed to the flow after step (E-670), and if it is valid, determine whether β≧1 in step (E-580). do. If β≧1, the characteristics of this close-up card cannot be utilized, so the card function is turned OFF (E-585) and the process returns. When β<l, the process advances to step (E-590) to determine whether β<1/4. Here, when β<1/4, step (E
-670), and when β>1/4, proceed to step (E
-595), Avc is calculated according to the formula Avβ=7-1og*1/β. The situation in this case is shown in FIG. 67, and the program diagram thereof is shown in FIG. 68.

Hereinafter, the flow after step (E-600) is executed.

Let AVc be AVβ. Calculated shutter speed TV to EV
It is determined whether this TV exceeds TVmax, and if it exceeds it, the control shutter speed (TV
C) is TV+*ax, and the control aperture value (AVc) is EV
Proceed to re-calculate s-TVmaX color 11660.

TV≦TVmay (When D, TV<TV, determine if there is a TV, and if TV≧TV, set TVc as TV and proceed to 11660.

When TV<TV, the control aperture value (AVc) is set to E.
Vs-TV, and determine whether AVc<AVn+in. When AVc < AVmin, Aνc
= AVmin, recalculate TVc as EVs-AVc, and proceed to (11660). When AVc≧AVmin, set TVc as TVF and proceed to (1660). Determine whether the exposure value (EVs) is greater than or equal to TVF + AVmin, and if EVs < TVF + AVmin and flash O
When N, proceed to flash control.

E-725... Background exposure value EVA= BVA+SV
Calculate with.

E-730--- Change the background to IEV77 <,!
! Let Vc=EVA+1. This is because the background light and strobe light are used to properly expose the main subject.

E-735 - Shutter speed TV = EVc - AVc Determine whether this TV is greater than or equal to TV (TV, whichever is slower between camera shake limit speed and TVE-775x synchronization speed), and if it is greater than TV, TVc = TV It is determined whether the shutter speed is greater than or equal to the longest shutter speed (TV+win), and if it is less than TV++in, TVc=TVI! Set lin and the limit value [! Proceed to -780.

If TV<TVF i', tune to TVc=TVx and find the control aperture value AVc=Eνc-TVc,
It is determined whether this AVc exceeds the maximum aperture value (AVmax). If it exceeds, limit it to AVwax and set it to E-7.
Proceed to 80.

E-780--How to calculate the flash dimming level (described later)
, set the flash light emission signal, turn off the camera shake buzzer signal, and proceed to (2).

β≧1/2 → TTL・χ 1/2≧β≧1/3→ TTL=χ+0.251/3≧
β≧1/4→ TTL=χ+0.51/4〉β ,→
Assuming TTL・χ+0.75, when the subject occupies the screen becomes smaller (β is small), the amount of light reflected back from the subject decreases, the light adjustment completion signal is delayed, and the amount of light emitted increases, so the exposure In order to correct this, the amount of light emitted is reduced as β becomes smaller. When β cannot be used, assuming that there are many subjects with 1/4>β, TTL is set as χ + 0.75.

And controlled dimming! (SVc) to film feel ffsν
Add TL.

To explain this dimming level calculation as shown in FIG. 66(C), the exposure value (EVc) is calculated from AVc+TVc, and EVc
-EVs (exposure value of the main subject >> 0 is determined. When EVc - EVs ≦0, the correction amount is set to χ・1.5, the light emission amount (flash control amount) is set to under, and the main subject is Make sure not to exceed the limit and proceed to E-840.

When EVc-EVs>00, it is determined whether EVc-EVs>3, and when EVc-EVs>3, the correction amount is determined as χ·0 and the process proceeds to E-840. When EVc-EVs≦3, E- as z=1/2(EVs-EVc+3)
Proceed to 840. Determine whether the image magnification (β) can be used,
When usable (#660), EVs≧TVr +AVmi
n or when the flash is off (including when it is not attached). 0 Camera shake detection is the same as in the case of sports cards.

11775, the camera cannot be released unless it is in focus. That is, if the camera is not in focus, the release is prohibited 81, and if the camera is in focus, the release is prohibited and returns to 0.

When β information is not valid or when β<1/4#
670, and in the above step (E-670) the AVI
The calculation is performed according to the formula. Steps (E-680) to (E-6
In 95), perform the limit correction of the aperture value, and calculate the control shank speed from the obtained control aperture value (TVc).#66t)
Go forward 4 steps.

Next, the operation of the autoshift card will be explained.

Autoshift means that the amount of exposure is constant.A.

, which changes the TV combination.

(7) Auto shift card When the auto shift card is attached to the camera, it executes the reset routine shown in FIG. 69 and sets the flag.

Reset all registers (RAM), move the information mode information in E"PROM to RAM, and go to sleep (T
-5°T-10).

Next, when the camera sends a signal that changes from "LJ to rH" to the card terminal (C5CD), the card
Execute the interrupt shown in the figure. Here, the card performs one serial communication in synchronization with the clock sent from the camera to input data indicating the type of communication (T-
15).

From the data from this communication, determine the type.T-2
0), communication (+), use the card as the data input side T-25), perform serial communication (T-30), and receive data (see CA-CD table) from the camera.

A data setting subroutine is executed based on this data, and then it is determined whether or not the release switch (S2) is turned on (T-38). If it is turned on, the 8F is prohibited.T-39 ), go to sleep.

Before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using an autoshift card table.

In communication (II): ・FL forced OFF (=1) CS II
-1-bz・Does the card control the display? C3II
-1-b4・Card function 0N10FF C
5II -1-bs/shake buzzer 0N10FF
C5n -1-bt/P shift prohibited (=1)
C5■-2-bo・Forced P mode (・l)
C5II-2-b.

・No. ■ No communication・0) C5 [1-2-
b3・Release prohibited C5U-2-b
a. Forced quick copy (・l) C5n -2
-b.

・AF prohibited C3II-2-b7
・TV, AV/display data CS II-3-b
s・th ■Communication present (=1) CS n −
3-b.

・No. ■Communication Yes (・1) C3It -3
'-b.

・Communication type ('0) C3II-3
-ba・Photometering loop repetition C3U -3-
bq/shake buzzer control (=1) C3II
-4-b.

All signals other than the above are set to ``0'', and the * mark on the front is set to ``1'' or ``0'' depending on the situation. 1lON, rJ (Turn OFF when D.

For fixed items, rQ,, rl, are determined in advance. In communication (n), since communication (III) in group communication is only G, C3II −9−(b+
, bz, b3)=1.0,0. There are two types of communication (IV): display and control data, so C3lI-10-b+,
bz=1. l, otherwise set to "0".

Note that in the above table, any data may be stored in the blank areas.

In the communication (V[), a signal indicating whether or not the sleeve is available is sent. The data setting subroutine is shown in FIG. 71(a) and will be explained. First, the display control data is set to "0", the release prohibition is prohibited (-0), and the F is prohibited (-0) is set to step (T-146). ) to (T-148), and further, in step (T-149), the photometry loop is repeated as rQJ.

Next, determine whether the cancel signal is "1" or not.T-1
50) In the case of r I J, release is prohibited and T-
152), if it is not ``1'', determine whether N1 is ``2'' or not. If yes, do nothing and proceed to (T-160). Step (T-160) checks whether the DISREQ (card name display request) signal obtained in communication (1) is rlJ.
), and if rl, the display control data is set to "1".
” and set the card display function 0N10FF to 0N (1) (T-170, ?-175). and flag (SIF
) is set or not (T-200)
, if it is not set, set this flag (SIF) as if this flow is going through for the first time (T-205).
, reset and start the timer (T-210)
, proceed to step (T-215). Flag (SIF)
Even when is set, step (T-215)
In step (T-'215), it is determined whether or not the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, set the photometry loop repeat signal to "1" and turn T-
220), sets the card display name and data for displaying only the card (T-222), and returns. This display is shown in FIG. On the other hand, if 10 seconds have passed, reset the flag (SIF) (T-226)
At the same time, set the display control data to "0" (T-227)
, return.

When the old 5REQ is 0 in the step (T-160),
■ps='LJ (S en +S FllN'+
Either S cIl+ S cns + S+ is ON
), T-162), if it is "L", reset the display flag (display F) that indicates the control to display the card name T-163), and if it is not rLJ, do nothing. Proceed to step (T-165) and reset the flag (SIF). After that, Figure 71Cb)
Proceeding to step (T-260), it is determined whether the self signal obtained in communication (II) is "1" or not.

When the value is "1", a return is made to prohibit control by camera switch operation (card related). When the self signal is not “1”, the card setting switch (SeD
s) is turned on. When it is ON (signal = 1), it is determined at step (T-270) whether or not a flag (Sees IF) indicating that it has passed through is set, and if it is set, the step is directly executed. (T-270), and if it is not set, set it (T-275), and if it is set, do nothing and step (T-276).
). In this step (T-276), it is determined whether or not it is being set, and if it is not being set, it proceeds to step (T-4
05) to display that the setting mode has been entered.If the setting is in progress (SETF=1), the operation is performed to exit the setting, so the process returns without performing display control. Switches (Sc, s) are turned off at step (T-265)
(0), proceed to step (T-280), determine whether the flag (Sc++s IF) is set, and if not set, proceed to step (T-310).
Proceed to. If it is set, reset it (T-285), and set the flag (SET) indicating that data is being set.
Step (T-290) determines whether or not F) is set.
), and if it is set, reset it. T-295) and set the E2FROM write signal to 1.
Then, directly specify address l (T-300) and proceed to step (T-310). This will exit the setup process. If the flag (SETF) indicating that setting is in progress is not set, it is set (T-305) and the process enters data setting mode and proceeds to step (T-310).

In step (T-310), the flag (SETF) is set to “
1”, and if it is “1”, step (T-3
Proceed to step 45). In step (T-345), it is determined whether or not the up switch (S□) is turned on.
(SUP = 1), it progresses 1 → 2 → 3, and after 3 it goes back to 1, cyclically (T-355
).

Here, 1 is 0. IEν 2 is 2Eν 3 is 3Eν This is the amount of slack.

After completing the changes in this mode, step (T-405)
Proceed to ゛. When the ambient switch (su?) is OFF, it is determined whether the down switch (Sa+t) is turned on (T-375); if not, the process proceeds to step (T-405). If it is turned on, it is the same as the switch (SLIP) described above except that the direction of change is reversed, so the explanation will be omitted.

After completing the processing of (SLIP) and (Sa,), the process proceeds to step (T-405) and subsequent steps, and display control/1. Release prohibition/1° AF prohibition-1, group designation (-0), photometry loop repeat/1, set the display data during data setting, and return. Note that the display during this setting will be described later. As a result, the camera performs the function of continuing display regardless of display control by the card, release prohibition, AF prohibition, and the camera's power hold timer.

In step (T-310) above, setting is not in progress (SET
If it is determined that F.O.), step (C) in FIG.
T-430) and turn on the card switch (SCD)
The card switch (S, .)
When is OFF, this flag (seDF) is reset (T-460), it is determined whether the display flag (display F) is set or not (T-465), and if it is not marked, return. If the card name has been sent, the process advances to step (T-ITo) and the display of the card name is controlled. When the card switch (SCO) is ON, it is determined whether or not the flag (ScnF) indicating that the card has passed through is set. If it is set, it is assumed that the switch continues to be operated and the step (T- 462).

Please set this when the T-440 is not sent.
), it is determined in the next step (T-445) whether or not the card function is currently ON, and if it is ON, it is OFF, (communication (I[) data) and T-45
0>, reset the display flag (display F) (T-45
1) Return. If it is OFF, turn it ON (
data of communication (n)), (T-455), display flag (display F), and (T-456), (T-
Proceeding to step 170), the card name display control is performed.

Returning to Fig. 70, if it is not communication (1), it is determined whether communication is (■) or not. If communication is (It), the card is placed on the output side to output the data set above to the camera. Toshiki T-45), serial communication was performed 10 times (
T-50) Sleeve.

If it is not communication (n), determine whether it is communication (I [I) or not. The process is repeated 15 times (T-53), and ΔTv and ΔAv are further calculated in step (T-54), and the process returns. This calculation is shown in FIGS. 73(a) and (b).

Next, when it is not communication (III), it is determined whether it is communication ([V) or not T-55), and when it is communication (IV),
Set the data to the output side T-60), determine whether it is display control or not T-65), output the display data if display control T-70), set the address and start serial communication Step (T-75) and step (T
-75). Control when not display control? Specify the address of IIl data, perform serial communication four times (T
-85), proceed to step (T-90). Step (T
-90), it is determined whether the E"FROM write signal is sent or not, and when it is set, in order to write 1 byte data of Nα in mode (I) to a predetermined address of ε"FROM, Output a write control signal (T-95) Writing to EtFROM is performed by hardware, and the microcomputer (μC) only needs to send the control signal. Then, in step (T-100), the write end signal is reset. This signal is activated when writing is completed.
automatically set in hard configuration), sleeve.

When there is no write signal, sleeve immediately.

When it is not communication (rV), it is assumed that communication (V[),
First, check whether writing has been completed using the above completion signal (T-105), and if it has been completed, set the sleeve enable signal (T-110), and if it has not been completed, set the sleeve disable signal. (T-
115), Step (T-120) Serial communication is performed on the data output side according to the clock from the camera, and (T-125) it goes to sleep.

The arithmetic control of step (T-54) in FIG. 70 is shown in FIG. 73(a)ffi). Here, B
VA represents background brightness, BVS represents main subject brightness, and BVavt represents average brightness. Returns when the card function is OFF. When the card function is ON, BVA-BVS≧
1, and when BVA-BVS≧1, B
VC=BDS.

When BVA-BVS<1, BVC=BVA-VE. This is to give priority to the main subject and ensure that the overall exposure is properly exposed. The exposure value is determined by Bvc+sV, and this value is shown to exceed the control limit value. Step (T-
525), (T-530) is YES, the shift function cannot be performed, so the process returns with the card function OFF.

The calculation of the control exposure value in step (T-540) is taken into consideration so as not to hit both the aperture value and shutter speed limits as much as possible.

AVc and E that determined the control shutter speed (TVc)
Start from Vc and judge the mode! When A
EV=1. II (7) when ΔEV=2. When the speed is 111, ΔEV=3. After ΔEV=3, it is determined whether or not the open F value exceeds 4. If it does, the number of aperture steps of the lens is often only 6, so ΔEV=2 is determined (
T-590).

(T-580), the release switch (S2) is ON.
Determine whether it is turned on or not, and if it is not turned on, turn N.
,・O1ΔAV・0. With ΔTV=0, the first sheet is placed on the program diagram. However, since program shift is possible, the up/down switch
In response to N, 0.5EV is added or subtracted from ΔAV+ and ATV+, and the process proceeds to (T-660).

When the release switch (S2) is ON, add l to N, determine N, and when l, ΔTV becomes ΔE, Δ
AV, -ΔEV, l) when ATV=4EV, ΔAV=
-ΔAV, if 3, do not set and proceed to (T-660). (T-660), TV=TVc+ ATV++
ΔTV, AV=AVc+ΔAV, TV at +ΔAV,
Find AV, this TV, AV is the control limit TVmax,
When either AVmin, AVmax, or AVmin is exceeded, set TV or AV to the control limit value, feed back the amount that exceeds the other, and set the control aperture value (AVc) and control shutter speed (TGc), respectively. calculate. And the camera shake shutter speed (TV, ) is TVII = 1.125X1og2f150+5.87
5 (f: focal length), and press the release switch (S2
) is ON, the camera shake buzzer is turned OFF and the process returns.

When the release switch (S2) is not turned on, T
-ΔEV is subtracted from V and shifted. Determine whether the TV value is less than or equal to camera shake shutter speed ((TVII)-2) EV, and if it is below, turn on the camera shake buzzer, and if rv > rv, -i, turn off the camera shake buzzer and return. do.

Here, the reason why the TVH-1 has a camera shake limit is that there is a low probability of camera shake for the second and subsequent shots.

I also want to take the second shot without worrying about anything, so I try to minimize the number of camera shakes and sounding the buzzer.

FIG. 74 shows a basic program diagram for determining the above Tv and AV.

Further, FIG. 75 shows the display during data setting, and when the card setting key is operated from the normal t sector mode (a), a setting mode such as eg) is entered.

Here, 1 in the upper row and CARD in the lower row blink. The number 1 in the upper row represents the amount of shift, and the number 3 in the middle row represents the number of images. If you operate the amplifier down key in the state of (b) → (C) → (d) → (b)... or (b) → (d) → (C) → Φ) ...changes. In either case, when the card setting key is pressed, the mode returns to the original normal shadow mode (a). Furthermore, in Figure 75,
In the normal shooting mode (a), only blocks are shown, and specific display is omitted.

Next, the operation of the card will be explained.

An H/S card means that black objects are underexposed by a certain amount to make them darker (Highlight/H), and white objects are overexposed by a certain amount to make them whiter (Shadow/S). It is something to do.

(8) H/S card When the H/S card is installed in the camera, it executes the reset routine shown in Fig. 76, and registers the flags and registers (RAFI).
), move the information in E"Pl?OM to RAM and go to sleep (H-10) (
H~S mode).

Next, when the camera sends a signal that changes from "L" to rH to the card's terminal (C3CD), the card
Execute the interrupt shown in the figure. Here, the H/S card performs serial communication once in synchronization with the clock sent from the camera to input data indicating the type of communication (H-15).

From the data from this communication, determine the type of H-2.
0), communication (I), use the card as a data input terminal H-25), perform serial communication (H-30) and receive data (see CA-CD table) from the camera.

Based on this data, a data setting subroutine is executed (II-35), and the computer goes to sleep.

Before explaining the above subroutine, let us explain what kind of data is output from the card in response to communication.
/S This will be explained using the card table.

In communication (■), ・FL forced OFF (=1) C3El
4-bt/Does the card perform display control? C5U -1
-b4・Card function 0N10FF C5II
-1-bs・Communication (V) No (・O) c
s I[-2-bi・Release prohibited C
3If -2-ba・AF prohibited C
5II-2-bt' Tv, AV/Display data C3lII-b3・Communication (IV) present (=1)
C3lII-b4・Communication (I [[) present (・1
) C5I [1-BS/Communication type
C5I[1-ba/photometry loop repetition
All signals except C3lI[-bt are set to "O", and the * mark from the table is set to "1" or "0" depending on the time. When "1", the control is ON, and when rOJ, it is OF.
Let it be F.

For those that are fixed, determine ``ro'' and ``rl''. In communication (II), the number of direct address type communication data (2 times) in communication (■), its address (CSI [-7, 8), and communication in group communication (I [
l) is (Gl), (G3), and CS II -9-
(b,, bl, b3)=1.0.1. Communication (IV)
is only for display, so C3U-10-b+=1. Otherwise, it is set to "0".

Note that in the above table, any data may be stored in the blank areas.

In communication (IV), l? with data of ΔAy and ΔT? It's in gate A.

In the communication (Vl), a signal indicating whether sleep is possible or not is sent. Next, the data setting subroutine is shown in Figure 35(a).
As shown and explained, first, steps (H-146) to (
) I-149) to initialize the display control data to "0", release prohibition prohibited (=0), AF prohibition prohibited (・O), and photometry loop repetition prohibited (・O), and step (
Proceed to II-160).

In step (H-160), the DIS obtained in communication (1)
Determine whether the REQ (request for card name display) signal is "1" or not. If it is "1", set the display control data to "1" and set the card display function 0N10FF to 0N (1
) Set the data specified for 1 group to (0) (H-170
~H-195). Next, it is determined whether the flag (SIF) is set (0l-200), and if it is not set, this flag (SIF) is set as if this flow is going through for the first time (H-205), and the timer is set. Reset start and step (II-210
), proceed to step (l(-215), flag (SI
Even when step (F) is set, step (L215
). In step (H-215), it is determined whether the timer has elapsed for 10 seconds. If 10 seconds have not elapsed, set the photometry loop repetition signal to "1")
-220), sets data for displaying the card and for displaying only the card (H-222), and returns.

This display is shown in FIG. On the other hand, if 10 seconds have passed, the flag (SIF) is reset (L226) and the display control data is set to "0" (H-227).
, return.

When DISREQ=O in step (H-160), I
F5・"LJ(SzN+5yux+5CIIISC
1l-162), rL", reset the display flag (display F) that indicates the control to display the card name H-16
3) If , rL, do nothing and perform step (H-
165) and reset the flag (SIF). After that, step (H-26
Proceed to 0) and the self signal obtained from communication (■) is "1"
Determine whether or not. Here, when it is "1", □ returns to prohibit control by camera switch operation (card related). When the self signal is not "1", determine whether the card setting switch (Scns) is ON or not (H-265). When it is ON (signal l), the A flag (S
cesIF) is set.
270), if it is not set, set it H-275), if it is set, proceed to step (1 (-276)) without doing anything, determine whether it is being set, and if it is not being set. Step (H-4
Proceed to step 05) to display that the setting mode has been entered. If setting is in progress (SETF.1), an operation has been made to exit from setting, so the process returns without performing display control. When the switch (SCDS) is OFF (0), proceed to step (■-280), determine whether the flag (Se++s IF) is set, and if this is not set, proceed to step (H-310). move on. If it is set, please reset it H-285)
, determine whether the flag (SETF) indicating that data is being set is set (1 (-290)), and if it is set, reset it (H-295),
Furthermore, set the E”FROM write signal to 1 and set it to direct addressing (・1) (H-300), and step (
Proceed to H-310). This will exit the setup process. If the flag (SETF) indicating that the setting is in progress is not set, it is set (H-305) and the process enters the data setting mode and proceeds to step (H-310).

In step (H-310), if setting is in progress (SET
F=1), proceed to step fl-345), and proceed to step (
H-345), the up switch (SIIP) is ON.
If it is ON (SLIP・1), proceed as in 1-2 (II-355). Here, l is highlight mode 2 and shadow mode. When this mode change is completed, proceed to step (T405).
) is OFF, the process proceeds to step (L375) and determines whether the down switch (s<j) is ON,
If it is turned on, it is the same as the switch (sup) except that the direction of change is reversed (H-385), so the explanation will be omitted.

When the processing of (SLIP) and (sdn) is completed, the process proceeds to step (H-40'5) and subsequent steps, display control: 1, release prohibition: l, F prohibition: 1. Specify group - ○, repeat photometry loop - Set to 1, set the display data during data setting, and return. The display during this setting will be described later. As a result, the camera performs the function of continuing display regardless of display control by the card, release prohibition, AP prohibition, and camera power hold timer.

In step (H-310), setting is not in progress (SETF=
0), proceed to step (H-430),
Determine whether the card switch (ScD) is ON or not, and if the card switch (SCN) is OFF, reset this flag (SC, F) (H-460), then the display flag (display F) I want to judge whether it is set or not, 1 (-462), if it is not set,
Return.

If it has been set, the process advances to step (H-170) and the display of the card name is controlled. Step (H-430
), when the card switch (SC11) is ON, it indicates that the card has passed through this point. Determine whether the flags (Sc, F) are set in step (H-435), and if set, proceed to step (H-462) as the switch continues to be operated, or if not set. If you want to reset this (H-440), check whether the card function is currently turned on or not in the next step (H-445).
If it is ON, it is turned OFF (communication (■) data) I-450), the display flag (display F) is set (L451), and the process returns. If it is OFF, turn it ON (communication (II) data) (H-455) and display the display flag (display F).
Set (H-456) and step (H-170
) to control the card name display.

Returning to Fig. 77, if there is no communication (H-40), then it is determined whether there is communication (■) or not. Toshiki II-45), serial communication was performed once (
H-50) Sleep.

When there is no communication (I[), it is determined whether there is communication (II[) or not. H-53), ΔTv, and ΔAv are calculated (H-5
4), Sleep.

Next, if it is not communication (I[[), determine whether it is communication (rV)) l-55), if it is communication (IV), set the data to the output side l-60), and specify the group. H-65), and if the group is specified, output the display data H-70), set the address and perform serial communication 9 times (H~75),
Proceed to step (It-90). When not specifying a group (direct address specification), specify the address of the ΔEv change data, perform serial communication twice, and step (11-
Proceed to step 90). At step (+1-90), E”PR
I need to determine whether the leaf write signal is set or not.
l-90), when set, N in mode (I)
A write control signal is output in order to write 1 byte of data of O to a predetermined address of E"FROM (It-
95). Writing to the E2PROM is done by hardware, and the microcomputer only needs to send control signals. Then, reset the write end signal. This signal is automatically set by the hardware configuration when writing is completed) (I(-
100), sleep. When there is no write signal,
Go to sleep immediately. Communication (V) when not communication ([V)
1), first determine whether the writing has been completed using the above completion signal (Li2S), and if it has been completed, set the sleep enable signal, and if it has not been completed, set the sleep disable signal, respectively. Proceed to step (H-120) and perform serial communication according to the clock from the camera on the data output side (formerly 125).
Go to sleep.

The arithmetic control of step (H-54) in FIG. 77 is shown in FIGS. 80(a) and 80(b). Step (i
When the card function is not ON at (-500) or when the AH rotor switch is OFF at step (H-505), the correction amount ΔTV+ ΔAv=O (H-515)
, 1l-520), and also when step (H-510) is in M mode, step (H-515), (H
-520). This is because in the M mode, the photographer's setting values (Av) and (TV) are given priority and correction by H/S is not performed. If the mode is not ① in step (H-525), that is, if the mode ② (shadow) is selected, the process proceeds to the flow shown in FIG. 80, etc.).

If mode I is selected, the process proceeds to the highlight control after step (H-530).

When in P mode, it is distributed to both Tv and Av (H-535, H-540), but when in A mode, the shutter speed TV is corrected and H-550,
It-560), when in S mode, corrects the aperture value Av (H-565, H-570).

Controls the TV Shutter speed (TVc) 1 correction amount (ΔTν
) and determine whether this TV exceeds TVmax. If it exceeds, the amount exceeded ΔTV = TV - TVmax
However, subtract this amount from the correction 112EV and calculate this as Δ
AV, feedback to the aperture, aperture value AV=
Calculate by AVc+ΔAV. It is determined whether or not this exceeds AVmax, and if it is, the control value (A
Let the difference between the values up to VC) be ΔAV and ΔTV,
I try to make corrections as much as possible.

On the other hand, when AV≦AVmay, ΔTV is TVmay
Determine by x-TVC.

When TV≦TVmax at H.580, aperture value AV
is calculated by adding the control aperture value AVc plus the correction correction value V, and if this is AV≦^Vmax, the corrected aperture value (AV)
and shutter speed are each returned as not exceeding the limit. When AV〉AVmax, the difference ΔAV
= AV-AVmax, and correction amount 2-ΔAV is ΔTV
is calculated again, and the correction number is determined as TV=TVc+ATV. And when this TV≦TV, ΔAV=AV+e
Set ax-AVc to find 7AAV. On the other hand, TV > T
When Vmax, proceed to It-605.

Next, Fig. 80(b) shows the control in the case of shadow, but the correction is on the (-) side (underside) and the limit value is AV, iLl or TVs+in, and the concept is the same as above. The controls are the same as those for highlighted highlights.

Figure 81 shows the display during data setting; in the normal display state (a), if you keep the card setting key ON, the display changes to (b), and then when you turn the card setting key OFF, the display changes to (b). It becomes (C). If you turn on the card key in the state of (C), the state will change to (d) and it will turn on again.
If you do so, you will return to (C). That is, each time the card key is turned on, (C) and (d) are displayed alternately. Next, when the card setting key is turned ON again, the normal display returns to (a).

Next, the operation of the portrait card will be explained.

(9) Portrait card When the portrait card is attached to the camera, the reset routine shown in FIG. 82 is executed and the flag is set.

Reset all registers (RAM) (P-5) and go to sleep.

Next, when the camera sends a signal that changes from "L" to r) (J) to the card's terminal (CSCD), the card
3 Execute the interrupt shown in Figure 3. Here, the card performs one serial communication in synchronization with the clock sent from the camera to input data indicating the type of communication.

From the data from this communication, determine the type.P-2
0), communication (1'), use the card as the data input side P-25) and perform serial communication (P-30)
Receive data (see CA←→CD table) from the camera.

Based on this data, a data setting subroutine is executed and P-35) goes to sleep.

Before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a portrait card.

In communication (II), ・Auxiliary light prohibited (・1) C5n -1
-b6・FL forced 0N (-1) C5
n-1-b.

・GN restriction release (=1) cs II
-1-bi・Whether the card performs display control cs I
f-1-bn/card function 0N10FF
CSU-1-BS・With/without camera shake buzzer
CS U -1-bt/P shift prohibited (=1)
C3II-2-b.

・Forced P mode cs II -2-
bt/V No communication (・O) CS I
I-2-bz・AF one sit (・1)
C5II-2-bi・Forced AF (・1)
CS n -3-bl' TV, Av /
Display data C3II-3-bi・No.■ communication
Yes (=1) C5It-3-b.

・No.■Communication Yes (=1) C3II -
3-bs・Group specification (=0) cs
U-3-bi/Photometering loop repetition C
5II -3-bt/hand 1ih b-f-control (=1)
CSIt-4-b.

Note that in the above, AF raw shot means prohibition of AF tracking mode after focusing by the camera.

All signals other than those mentioned above are set to "0", and the * marks in the table are set to "1" or "0" depending on the case, and when "1", the control is ON, and when rOJ, it is OFF. For fixed values, rQJ and rlJ are determined in advance. Communication (
In II), in addition to that, communication in group communication (I[[
) to specify group 1 of C5If-9-bl=1
．． There are two types of communication (rV): display and control data, so c
SII-10-bt, bz=1.1, otherwise “0
”.

Any data can be stored in the blank areas.

In communication (Vl), a signal indicating that the sleeve is available is sent.

This is because there is no write control to E''FROM.

The data setting subroutine is shown in FIG. 84(a) and will be explained. In step (P-150), display control data is
0" and proceeds to step (P-160).

In this step (P-160), D
ISREQ (card name display request) signal is “1”
If it is rl, the display control data is set to "1" and the card display function 0N10FF is set to 0N.
(L) (P-170 to P-185). Flag (S
IF) is set or not. P-200
), if it is not set, set this flag as if it is going through this flow for the first time (P-205),
Reset and start the timer (P-210),
Proceed to step (P-215). Even when the flag (SIF) is set, the process proceeds to step (P-215). In step (P-215), the timer is set to 10.
Determine whether seconds have elapsed. If 10 seconds have not elapsed, set the photometry loop repeat signal to "1" (P-2
20) At the same time, set the card display name and data for displaying the card only (P-222) and return. This display is shown in Figure 85. On the other hand, when 10 seconds have passed, the photometry loop repetition signal is set to "0" and the flag (
Reset the SrF) (P-226), set the display control data to "0" (P-227), and return.

When DISRE low is 0 in step (P-160), I
P,・"L J (St11+ 5FUN + Sc
o + 5cos + S+ is ON)), reset the display flag (display F) that indicates the control to display the card name when "rL".
and if it is not “L”, do nothing and step (P-
165) and reset the flag (SIF). After that, step (P-2) in Figure 84 (g))
Proceed to step 60), and the self signal obtained in communication (II) is
1”.

When "l", camera switch operation (card related)
Returns to prohibit control by.

When the self signal is not "1", the process proceeds to step (P-430) in FIG. 84(C), and the card switch (sCD
) is turned on, and then turns the card switch (
S. . ) is OFF, reset this flag (SCDF) (P-460), then the display flag (display F)
Check whether or not is set (P-465),
Returns when not set. If it has been set, the process advances to step (P-170) and the display of the card name is controlled. When the card switch (S■) is ON in step (P-430), it is determined in step (P-435) whether or not the flag (ScnF) indicating that the card has passed is set. If the switch continues to be operated, step (P-465)
). If it is not set, reset it (P-440), then judge in the next step (P-445) whether or not the card function is currently ON, and if it is, turn it OFF (communication H). data) as (P
-450) Return. If it is OFF, turn it ON (communication H data) and step (P-170).
Proceed to , and control the card name display.

Returning to Fig. 83, when it is not communication (1), it is determined whether it is communication (■) or not (P-40), and when it is communication (II), the card is inserted to output the data set above to the camera. Set it to the output side and perform serial communication 10 times (P-50
) to sleep.

If it is not communication (II), determine whether it is communication (III) or not (P-51). If communication (I[l), use the card side as input (P-52) and perform serial communication 15 times. (P-53), inputs camera data, calculates data for controlling the camera (includes performance) in the next step (P-54), and goes to sleep. This calculation will be described later. If it is not communication (III), judge whether it is communication (■) or not (P-55); if it is communication (IV), set the card to the output side and P-60) judge whether it is display control or not. -65), display data is output during display control (P-70), an address is set, serial communication is performed nine times (P-75), and the device goes to sleep. When not display control (Tv, Av data), T
Specify the data address of v and Av, perform serial communication four times (P-85), and go to sleep.

When it is not communication (TV), it is communication (Vl),
First, with the card as the output side, serial communication is performed according to the clock from the camera (P-125), and the card goes to sleep.

The arithmetic control in step (P-54) in FIG. 83 will be explained with reference to FIGS. Calculate the value TV□.

A lens with a long focal length is likely to cause camera shake no matter how fast the shutter speed is, so the longer the focal length, the faster T□.

zFz = 16 When f<50, the TVH is calculated by changing the level of the camera shake Bz sound. This is to warn you if Tv becomes extremely slow even with a wide-angle lens.

zFz = 16 When the speed exceeds a certain level, the TV is restricted to prevent the camera shake warning buzzer Bz from sounding.

In (D), the TV at the bending point of the diagram at the time of flash emission is determined.

When Tvll≦TVX, the shutter speed when flashing is set to the lowest speed T□ that does not cause camera shake. This allows for natural light exposure, making the background more visible.

When TV, I>TvX, set the shutter speed to the maximum synchronization speed TvX.

(E) When the flash switch is OFF, the aperture value Avβ is determined from the image magnification β, considering the depth according to β.

When β>1/100, β is reliable.

When β>1/100 is not satisfied, AVβ=AVoz (open F value) and AVx is set to AVβ.

When , the aperture value AVβ is determined from the image magnification β.

On the other hand, when β≦1/100, the main subject appears small and difficult to distinguish from the background, so the control line is made independent of the image magnification. At this time [F], AVoz <3 4
AVx=33≦AVoz<3.5 −+ AVx
=AVoz3.5<AVoz≦4 -4 AVx
=4AVoz <4 -* Set AVX=AVOZ, and for a lens with a small open F value, close down the aperture a little to deepen the depth of field and make the background a little blurry.

The exposure value (EVs) is calculated from BVs + SV, the control limit value and EVs are compared, and EVs is the maximum control value (ADmax+
When it exceeds (TVmax), it is set as the maximum control value, and when it is less than the minimum control value (AVmin+TVmin), it is set as the minimum control value. (F゛) Find the shutter speed (TV) at the open F-number (AVoz), and when this is less than TVII, set the control shutter speed (TVc) to TV, and set the control aperture value (AVoz) to the control shutter speed (TVc).
c) Set AVoz, make the shutter speed as fast as possible, and proceed to camera shake detection.When the calculated TV is equal to or higher than TV, calculate AV = EVs - TV, and this AV is A
When V < AVx, the control aperture value (AVc) is set to A
V, the controlled shutter speed (TVc) is set to TVN, and the controlled aperture value is set as close to AVx as possible.

When AV≧AVx, the TV is EVs-AVx ”'
Q is calculated, and if TV < TVmax, the control aperture value (AV
c) is AVx, and the control shutter speed (TVc) is TV. TV≦TVmax T: If there is, the control shutter speed (TVc) is set to TVmax, and the control aperture value (8ν
C) is recalculated using EVs-TVmax, and the process proceeds to camera shake determination.

When camera shake occurs (that is, when the obtained shutter speed TVC is less than TV), communicate (n) to issue a camera shake warning.
Set the signal (S -1-by) to 1, and set this signal (Sll-1-bt) to O when the hand is not shaking. Then, the bit (
b. ) is set to 0 to prohibit flash emission.

Next, flash control will be explained.

When the spot key is turned on (＾EL=1),
It is determined whether or not the previous spot key ON calculation was performed, and if the previous spot key calculation was performed, the flash adjustment is performed using the previous control aperture value (AVc) and the control shutter speed (TVc). Proceed to optical calculation (F.

~F3). When the spot key is not ON, or when the previous spot key ON calculation has not been performed, calculate the exposure value (EVA) from the background brightness (BVA) (F-4)
.

This exposure value (EVA) is less than or equal to the synchronization speed (TVX) and the aperture aperture (AVD2) + 1.5, and the main subject exposure value (E
When Vs) is less than the tuning speed and open F value - 1,0,
Both the background and the main subject are dark. Then, it is determined whether the spot key is turned on or not, and if it is not turned on, the control aperture value (AVc) is set to AVD, the main subject is controlled to have proper exposure with flash light, and the depth of field is increased as much as possible. I'm here. Then, the control shutter speed (TVc) is set as the tuning speed and the process proceeds to dimming calculation.

Background exposure value (EVA) is EVA > TVx + A
Voz or main subject exposure value (EVS) is EVS >
TVX + AVoz -2 or spot key is O
When N, it is determined whether ΔBV (BVA-BVs) is 2.5 or more, and if it is 2.5 or more, it is considered a backlight condition and the exposure control value is set to BVA-1, the background is overexposed to make it look like backlight, and the main subject is exposed to flash light. This is considered appropriate exposure. 2.
When the value is less than 5, it is assumed that there is no backlight condition, and the background is under-exposed by one step, in order to properly expose the background and main subject using natural light and background light. (F-9) Open F value (AVoz
), the shutter speed at the time of
TVc) is the tuning speed (TVx), the aperture value (AV) is calculated from EVc - AVx, and this aperture value (AV) is the AVD.
The control aperture value (A
Vc) is set to AVD, thereby preventing the main subject from being underexposed.

When AV<AVD, the control aperture value (AVc) is set to AV.

Then, each Franche dimming level is calculated.

When F-12 TV<TVx, control aperture value (AVc)
is the open F value (AVoz), it is determined whether the TV is at least the minimum shutter speed (TVmin), and if it is, the control shutter speed! (TVc) is TV, and when it is less than TVmin, the control shank speed (TVc) is TVIIIin
Proceed to calculate the flash dimming level.

The dimming calculation is the same as for the auto-depth card.

Next, the operation of the defocusing card will be explained.

A defocusing card produces a soft focus effect or an inter-exposure zoom effect by driving a focusing lens during exposure.

(10) Defoe Force Sing Card When the Defoe Force Sing Card is attached to the camera, the 9th
Execute the reset routine shown in Figure 0, reset all flag 1 registers (RAM), and go to sleep.

Next, when the camera sends a signal that changes from rlJ to rH to the card terminal (C3CD), the card
Execute the interrupt shown in the figure. The card performs serial communication once in synchronization with the clock sent from the camera to input data indicating the type of communication (F-15).

From the data from this communication, determine the type.F-2
0), communication (1), use the card as the data input side F-25), perform serial communication (F-30), and receive data (see CA-CD table) from the camera.

Based on this data, a data setting subroutine is executed (F-35), and the program goes to sleep.

Here, before explaining the above subroutine, what kind of data is output from the card in response to communication will be explained using a defocusing card table.

In communication (II): ・FL forced OFF C3It -L
b.

・Whether or not the card performs display control CS II-1-b
4. Card function 0N10FF C5n −
1-b5・No camera shake buzzer (・O) C3I
I-1-bff・P shift prohibited (・1)
cs II -2-be・Forced P mode (・1)
C5II-2-b.

・Before Vth communication (=0) cs If −
2-b3・Release prohibited C5n-2
-b.

・AF one shot (・1) (:S II
-2-b The one shot referred to here is to prohibit the tracking mode after focusing on the camera side, and the camera side inputs this signal and prohibits the tracking mode.

・Forced AF (・1) C3II-3
-b+・TV' Av/display data C3II
-3-b3・No. ■Communication (・1) c
s II -3-b4・No. ■Communication (・1)
C5U -3-bs・Group specification (・0)
C3II-3-b.

・Photometric loop manipulation C5U-3-b.

・Camera shake buzzer control (・1) cs U-4
-be・Defocusing (・l) C3II
-4-bs・10IIlsec extension (=1)
C3II -4-b4 Only when it is a deforming card, it becomes b and -1.

This signal is sent because the 10m5ec extension increases the time required for calculation after communication (I[[) with this card.

All signals other than those mentioned above are set to "0", and the * marks in the table are set to "1" or "0" depending on the situation, and when rl, the control is ON, and when rOJ, it is OFF. For things that are fixed, determine r□,,rl, and communicate (
In addition to that, C3ll-9-bo, tz is used to specify groups G, , G, , G of communication (I[I) in group communication in communication (rV).

b,,b3・1,1,0,1. There are three types of communication (IV): display control data and lens drive data, so C3n-1
0-b,,b2゜bi=1. l+1. Otherwise "0"
shall be.

Note that in the above table, any data may be stored in the blank areas.

In communication (IV), a sleeve-enabled signal is sent.

This is because there is no write control to E''FROM.

Next, the data setting subroutine is shown in FIG. 92(a) and explained. First, steps (F-146) and (F-146)
-147), the display control data is initially set to "0", release is inhibited (=O), and the next step (F-1
In step 60), it is determined whether the DISREQ (card name display request) signal obtained in communication (1) is "1" or not.
1", set the display control data to rl and set the card display function 0N10FF to 0N (1) (F-170
, F-175). Next, it is determined whether the flag (SIF) is set (F-200), and if it is not set, this flag (SIF) is set as if this flow is going through for the first time (F-205), and a timer is set. Reset start and step (F-210)
, proceed to step (F-215). Even when the flag (SIF) is set, the process proceeds to step (F-215). In step (F-215), the above timer is set to 1.
Determine whether 0 seconds have passed. If 10 seconds have not elapsed, set the photometry loop repeat signal to "1" and set F-22.
0) Set the card display name and data for displaying the card only (F-222) and return. This display is shown in Figure 97. On the other hand, when 10 seconds have passed, the photometry loop repetition signal should be set to 0 and the flag (SIF) should be reset (F-226), and the display control data should be set to "0" (F-227). , return. Step (F-16
0) and DISRE[+・0, IPs・'LJ (
S ts , S FLIN , S cD, Sc++s
+ F to determine whether any of Sl is ON)
-162), reset the display flag (display F) that indicates the control to display the card name when it is "L" F-163),
If it is not "L", do nothing and step (F-
165) and reset the flag (SIF). It is determined whether the self signal obtained in communication (II) is "1" (F-165, F-260).

When “1”, camera switch operation (card related)
Returns to prohibit control by.

After that, the process proceeds to step (F-260) in FIG. 92(b), and when the self signal is not "l", the process in FIG. 92(C
) Proceed to step (F-430) and turn the card switch (
This flag (SCDF) is used to determine whether CartSinch (Sco) is ON or not.
F-460), then check whether the display flag (display F) is set or not.
), returns when not set. If it is not set, proceed to step (F-170),
Controls the display of card names. Step (F-430)
When the card switch (SCD) is ON, it is determined in step (F-435) whether or not the flag (Sc, F) indicating that the card has passed is set, and if it is set, the switch is turned on. Assuming that the operation continues, the process advances to step (F-462). If it is not set, please reset it (F-440), the card function is currently OFF.
It is determined in the next step (F-445) whether or not it is turned on, and if it is turned on, it is turned off (communication (If
) as (F-451) and return.

If it is OFF, turn it ON (communication (II) data) (F-455) and step (F-170).
Go to and control the card name display.

Returning to Figure 91, if not communication (1), communication (n)
When the communication is (■), set the card side as the output side to output the data set above to the camera (F-45), and perform serial communication 10 times. (F-50), sleep.

If it is not communication (■), determine whether it is communication (III) or not (F-51). If communication (I[), use the card side as input (F-52) and perform serial communication 19 times. (F-53), input camera data, and calculate data for controlling the camera (including exposure calculation) L (F-54)
), go to sleep. When not communication (III), communication (
F-55), communication (IV).
), set the data to the output side (F-60), determine whether it is display control or not (F-65), and if display control, output the display data (F-70), set the address. and performed serial communication 9 times (F-7
5), Sleep.

When not display control (Tv-Av data), T9 ・A
Specify the data address of V, perform serial communication five times (F-85), and go to sleep.

When it is not communication (IV), it is assumed that it is communication (Vl),
First, as the data output side (F-120), serial communication is performed according to the clock from the camera (F-125).
), go to sleep.

Next, the arithmetic control in step (F-54) of FIG. 91 will be explained with reference to FIG. 93.

First, reset the 5oft Flag and Zoom Flag, and in step 2, calculate the absolute value of the maximum lens extension input from the camera (LpvAaxl minus the absolute value 1ΔLpl of the lens extension from the current (1) position). Find Lpmin = 1Lpmax 11ΔLpl.

Then, set the shutter speed corresponding to the time required to advance Lpmin (as only the shutter speed (exposure time) of 374 is extended, the shutter speed was determined taking this into consideration) to the elapsed time from the start of motor rotation. and the amount of rotation of the motor (the number of pulses from the encoder) is obtained from FIG. 95 (note that FIG. 95 is a ROM table using the number of rotations as an address). Then, let what you have found be near TVLIM.

In (2), in the same way as in (2), the time required for renormalization from the current lens position to ω is obtained from the renormalization amount ΔLp, and is set as TVL I M far.

In (2), Nege... In the case of a negative film, the latitude is wide, so it is assumed that up to 3 Ev over is allowed, and KF indicating this is set as 3.

Pos i: In the case of a positive film, the latitude is narrow, so it is set to 0.

In (39) to (41), the shortest time of the controlled shutter speed is set to TV=3 (determined from the aperture F value and the above KF), and if Tv>3 or more, there is no effect, so proceed to (A). Set display data and set release prohibition
(-1) Creation and display control of display data for only flashing card marks Return as l.

In (2), the limit value of the TV is determined. TVLIM Chika and T
The smaller of VL1 far is set as TV, and when TV≧0, TVooww=TV, and when it is less than, TV=O(SS
= IS).

In case of ■, determine Ev STv D(lWn±AvO1,000KF, and if YES, when the lens is driven, it will hit the end of the lens (front end or rear end) and the close-up effect cannot be obtained, so (A) Proceed to , and perform warning and release lock control.

In (2), the maximum speed limit (TV) is set to 3.

■So, Tv≧TVD. Determine whether Tv<
Tvn. In the case of WN, it is the TV change limit, so proceed to (① will be described later), and it is determined whether there is a soft effect or a zoom effect.

In (2), the value indicating the amount of deviation from proper exposure is initially set to 0.

In [phase], it is determined whether the above K is the limit of latitude. When exceeding the limit (KF=3° for negative film, F=O for positive film), set the shutter speed (TV) under 0.5 Ev and increase the amount of defocus obtained in ■ by about 1.5 times ■ Proceed to.

In (2), the aperture value is calculated when it is within the latitude range.

In (2), it is determined whether the aperture value is below the maximum aperture value, and if the aperture value is exceeded, the process proceeds to 0. At O, add 1 to K and proceed to [Phase]. By doing this, the aperture value is opened toward the open side within the range of latitude, until it is within the maximum aperture value.

In ■, when the aperture value is less than the maximum aperture value (AV≦A
VaaX) It is determined whether the aperture value is equal to or greater than the open F value, and if it is smaller than the open F value, the process proceeds to step 42, where 0.5 is subtracted from Tv to control the aperture value to the aperture side that is equal to or greater than the open F value.

In [Phase], FIG. 96 shows the number of rotations (number of pulses from the encoder) that changes from the shutter speed to the time 374 at that time. Number of rotations (N) relative to shutter speed time
) (However, this is calculated from a ROM table using the shutter speed as an address). Then, multiply this by the KBL value (OF=N XKBL),
Seek defocused leaves.

In ■, change the above aperture value to FNO and change the circle of confusion δ to OF
/FNO. Here, Tv, Av (→FN
DF, F, for O). However, when the IEv of the TV changes, the time the motor can operate doubles.

On the other hand, when Av changes by IEv, FNO changes by a factor of 12.

[Phase] to [Phase] determine whether there is a zoom-like effect. It is determined whether the shutter speed (Tv) obtained in steps ① to ② is equal to or longer than the maximum time (TvLza far) required for movement in the ω direction when a zoom-like effect is exhibited, and T V L If it is less than i + a far, it is assumed that no effect is obtained and the process proceeds to (21').

In ■, when (TV) is TV L i 11 far or more, a flag indicating that there is a zoom effect (Zoos F
Determine whether or not Lag) has already been set, and if it has been set, consider that Tv and Av have been set and set (
Proceed to step 21'). (18'), ZoolIIFLa
When g is not set, it is determined whether there is a zoom-like effect. The zoom effect is caused by a change in image magnification due to defocusing. Now, if we focus on the point of image height h' (12 mm) with a fully extended lens, the change in image height (△L1) at this point is F △L= f××h" (X+ is the amount of lens extension) In this case, ΔL±δ/2≧2 and ΔL/δ≧
If it is 3, it is said that there is a zoom effect. Then, a flag (effective F) is set or reset according to the result of the above calculation (see FIG. 94).

[Phase]■ @ sets the zoom flag when it is set according to the flag above (effective), and sets the Tv,
Proceed to (21') with Av as vz to Tvz +, respectively.

Even when the effective flag is not set (21°
).

(21') to @ determine whether or not there is a soft effect. In (21'), it is determined whether Tv is greater than or equal to the maximum time (CTVLi@near) when moving the lens in the direction in which the soft effect is performed.
Assuming that it is impossible to change V, proceed to (A).

@3334, when the TV is near or above, the above calculated δ
Determine whether or not is equal to or greater than 3000μ, and if it is equal to or greater (the effect is at a large level), proceed to (C), determine whether the value of f/2FNo is equal to or greater than the image height h” (・6 mm), If it is above, it is assumed that there is an effect, and the process returns after entering positive predetermined values into Δt and p to drive the lens in the near side direction.If it is less than h, proceed to 42 and repeat the flow from 42 and ■. , As a result, after adding 1 to K at @, which will be described later, the aperture opens up at ■ and increases by 1 to increase the FN as much as possible.
I am trying to make O smaller and f/2FNo larger.

At @, it is determined whether 3000 μm>δ>1500.

At @, when δ<1500, it is determined whether a flag indicating a soft effect (Soft FLag) has already been set, and if it has been set, the process advances to [phase]. [Phase] [Phase] [Phase]
) is not set, it is determined whether 1500>δ≧800, and if it is within the above range (effect level is small), a flag (Soft Flag) is set, and 'rVs
, proceed to O with Ays as Tv and A9. δ〈800μ
When it is I, immediately proceed to O.

At O, add 1 to K to create a new K, and proceed to [phase].

This attempts to open the aperture within the latitude range, and as a result, δ and f/2FN
The value of o increases. This effect does not exist with negative film.

In [phase], when 3000μ->δ≧1500μ, the level of the effect is medium), and the flag indicating the soft effect (so
, tFLag) is set, and if it is not set, proceed to (C).

In ■, when it is set, determine whether TV≧2 or more, and if it is less than 2, proceed to (C) using Tv and Av when the effect level is small. I try not to make the shutter speed too slow. When it is 2 or more, proceed to [phase], thereby increasing the effect level.

In [phase], in the flow of (B), when the shutter speed cannot be made any slower, at this point,
First, it is determined whether the soft flag (Soft FLag) is set, and if it is not set (D)
Proceed to.

In [Phase], when set, f/2FNo≧h
(.6 mm), and if f/2FNo<h, proceed to (D).

At step 32, when f/2FNo≧h, Tv and Av are set to TV, AV for software effectiveness, and at step 33, the driving direction of the lens is set and the process returns.

In No. 35, priority is given to soft effects in this embodiment.

When a soft effect cannot be obtained, it is determined whether a zoom-like effect is present. When there is no effect (Z,...

FLag reset), proceed to 39 (explanation path).

36 and 37 when it is effective (Zoom FLag
set), Tv, Av for zooming TV2, A
Set y 2, set the lens drive direction to the far side (△t, p are negative), and return.

In step 42, the TV is set to 0.5 Ev under and becomes a new TV. This increases the change in OF amount due to lens driving by 0.5 times.

An example of the RAM map in the camera is shown in Table 7. In the case of such a RAM (including E" FROM) map, group M of data (GO, G, , G2) is
PI, MP3. MP+. If it is necessary to specify a group, the above-mentioned MP, , MP, is specified in advance.

M P +. All you have to do is memorize the start address and number of the words and compose them in response to the signal. These are compatible with existing card systems because they only read fixed data. However, new cards with other functions have been created, such as the above-mentioned other data M.
If P z and M P x are needed, no other data can be read.

To make this possible, it is necessary to directly specify the start address of the data and its number (direct addressing type). However, in that case, it is not possible to specify discrete data (for example, data of MP and only data of MP), and all data from MP to MP is specified. There is no waste (memory and time) in the transfer.This embodiment transfers data efficiently by using these properly.

In this embodiment as well, direct addressing is performed after the relationship between the group-designated card and the camera is established, and it is not possible to add new group designations. Therefore, if the card and camera are being designed at the same time, the above-mentioned direct address type card can also be designated as a group.

Table 1 Table 1 Table (Continued) Table 2 Table 3 Functional data (Fb, l) RAM Table 4 Table 4 Scissors) Table 5 Table 6 Data content of data communication between camera and card No. 6 Table (Continued) Table 7 Table 8 Table 8 (Continued) Table 8 (Continued) Table 9 Lens (1) Table 10 Lens (n) Table 11 In-camera Lens information Table 12 Custom card 1413 table Data Memory Card Table 14 Spawn Card Table 1R15 Auto Depth Card Table 16 Bracket Card Table 17 Ri6-Zup Card Table 18 Autonft Card Table 19m 11/S Card Table 20 Portrait Card Table 21 Deforcing According to the present invention, the display based on the coded first display control data and the second display control data that controls the display of each display segment that is not coded. Since the first display control data can be used to display a sufficient number of Wl types with a small number of data, the second display control data can be used to display a display based on the encoding rules. This allows for free display.

Also, when applied as a camera display control device, the first
By forming the display control data for the camera itself and inputting the second display control data from the IC card attached to the camera, even if an IC card is added later, the display can be controlled freely by the IC card. can be done.

[Brief explanation of the drawing]

The figures are all related to embodiments of the present invention, and Fig. 1 is a circuit block diagram of the entire camera, Fig. 2 is a diagram showing the display form on the display section, and Fig. 3 is a diagram showing the camera reset routine. FIG. Figure 4 (a
) is a circuit diagram of the lens circuit, and FIG. 4(b) is a side view of the lens. FIG. 5 is a flowchart regarding data communication between the camera and the card. FIG. 6 is a flowchart showing a routine for photometry, AF, display, exposure control, etc., and FIG. 7 is a flowchart showing a routine for determining the AF mode and locking the focus. FIG. 8(a) is a circuit diagram of an electronic flash device, and FIG. 8(b) is a circuit diagram of an electronic flash device.
) is an explanatory diagram regarding the display, FIGS. 8(C) and 8(d) are flowcharts showing an interrupt routine regarding the electronic flash device, and FIG. 9 is a diagram showing an interface circuit of the electronic flash device. FIG. 10 is a flowchart of lens data manual processing. FIG. 11(a) is a flowchart for inputting flash data, and FIG. 11(b) is a flowchart for outputting flash data. Figure 12 (a) is the AF 7o-chart, Figure 12 (b)
). Fig. 12 (C), Fig. 12 (d), Fig. 12 (e), Fig. 12 (f), Fig. 12 [Z (g), Fig. 12 (c)
FIG. 13 is a diagram showing an example of a display in the finder regarding this. FIG. 14 shows the distance measurement range and photometry range within the photographic screen. Figure 15 is a flowchart for data setting, Figure 16 is a flowchart for changing exposure mode, Figure 17 is a flowchart for selecting function mode, Figure 18 is a flowchart for exposure compensation, Figure 19 is a flowchart for self-control, and Figure 20 is metering data. The flowchart for creation and FIG. 21 is a flowchart for AE lock. Figures 22(a) and 22(b) show the aperture and shank.
It is a flowchart of speed setting. FIG. 23 is a flowchart of exposure calculation, and FIGS. 24(a) and 24(a)
b), Figure 24 (C), Figure 25, Figure 26 and Figure 27
The figure is a flowchart of each mode therein. 28th
The figure is a flowchart of control using an IC card. FIG. 29(a) is a flowchart showing the display routine, and FIG. 29(b) is a flowchart showing the interrupt routine. is a diagram showing a display example, and the 29th [F(f
) is a flowchart showing a mode setting routine. Figure 30 is a flowchart of exposure control 1 Figure 30 (G)
) and 3011Z (C) are flowcharts of lens driving, and FIG. 30(d) is a flowchart of shank speed control. Figures 31(a) and 31(1)) are flowcharts for winding one frame of film;
FIG. 2 is a flowchart showing an interrupt routine related to closing the camera back. 33, 34, and 35 are diagrams showing the operation flow of the custom card, FIG. 36 is a diagram showing its mode setting, and FIG. 37 is a diagram showing a display example. FIG. 38, FIG. 39, and FIG. 40 are diagrams showing the operation flow of the data memory card, and FIG. 41 is a diagram showing an example of the display. FIG. 42, FIG. 43, FIG. 44, and FIG. 45 are diagrams showing the operation flow of the sports card, FIG. 46 is a diagram regarding the exposure setting, and FIG. 47 is a diagram showing a display example. Figures 48, 49, 50, and 51 are diagrams showing the operation flow of the auto-depth card, Figure 52 is a diagram showing an example of its display, Figures 53, 54, and 55. is an explanatory diagram thereof. FIG. 56, FIG. 57, and FIG. 58 are diagrams showing the operation flow of the bracket card, FIG. 59 is a diagram showing an example of the display, and FIG. 60 is a diagram showing the operation flow. FIG. 61 is a diagram showing a display accompanying the settings. 62, 63, and 64 are diagrams showing the operation flow of the close-up card, FIG. 65 is a diagram showing a display example, FIG. 66 is a diagram also showing the operation flow, and FIGS. 67 and 6
FIG. 8 is an explanatory diagram thereof. FIGS. 69, 70, and 71 are diagrams showing the operation flow of the auto shift card, and FIG. 72 is a diagram showing an example of its display,
FIG. 73 is a diagram similarly showing the operation flow, FIGS. 74 and 7
FIG. 5 is an explanatory diagram thereof. Figures 76, 77, and 78 are diagrams showing the operation flow of the H/S card, Figure 79 is a diagram showing an example of its display, and Figure 80
This figure also shows the operation flow, and FIG. 81 is an explanatory diagram about settings. FIGS. 82, 83, and 84 are diagrams showing the operation flow of the portrait card, and FIG. 85 is a diagram showing an example of its display.
FIG. 86 is a diagram similarly showing the operation flow, FIG.
Figure 8 and No. 89 are explanatory diagrams thereof. Figures 90, 91, 92, 93, and 94 are diagrams showing the operation flow of the defocusing card, and Figure 95 is a diagram showing the operation flow of the defocusing card.
Figures 96 and 97 are explanatory diagrams thereof. FIG. 98 is a diagram showing an example of a display element.

Claims (2)

[Claims] (1) Coded first display control data, non-coded second display control data that controls the display of each display segment, the first display control data or the second display control data display control data output means for outputting three types of instruction data indicating which one to use; a decoding means for decoding the first display control data to create control data for each display segment; A display means having a display element and performing display based on the data decoded by the decoding means or the second control data, and a display means based on which of the first display control data and the second display control data is to be performed. A display control device comprising: selection means for making a selection based on the instruction data. (2) The first display control data is formed by the camera itself, and the second display control data is input from an IC card attached to the camera. Display control device.