JPH026932A - Camera system - Google Patents

Abstract

PURPOSE:To improve camera performance by storing the content of function, which has been set with an accessory loaded into the main body of the camera, in not only the main body of the camera but also the accessory itself even after the accessory is removed. CONSTITUTION:When the specified data is set by using a setting means SCDS with an accessory CD loaded into the main body of the camera, the data is stored in not only the main body of the camera but also the accessory CD. In the main body of the camera, the stored data can be available even in condition where the accessory CD is removed, so that set data of the plural accessories CDs can be easily available at the same time. With the accessory CD, its set data is capable of controlling the main bodies of other cameras. Thus, function as the entire camera system can be improved.

Description

[Detailed description of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera system that includes an accessory that can be attached to and detached from a camera body. Conventional Art (2) and Distortions In recent years, it has been proposed to introduce an IC card into a camera and, for example, provide one IC card with one function, and prepare a plurality of IC cards to increase the functionality. By the way, if we assume that the functions of an IC card like this can be performed only when it is attached to the camera body, then when using it in combination with the functions of other IC cards, This means that multiple IC cards must be attached to the camera body at the same time. However, configuring the camera body so that multiple IC cards can be attached at the same time increases the size and complexity of the camera attachment structure. On the other hand, if the function content set when the IC card is inserted into the camera body is not saved,
If you want to use the IC card to set the same function content on another camera body (67: cough), you will have to perform the function setting operation again with the IC card attached to the other camera body. For IC cards 6:: Not limited to
The same thing can happen for other acrylics as well. The present invention has been made in view of the above points, and is designed so that the function contents set while an accessory is attached to the camera body are saved in the camera body and also in the accessory itself even after the accessory is removed. The aim is to provide the power of the Mera system. Assignment) Ikumu Inu'! In order to achieve the above object, the camera system of the present invention has the following features:
A control means for controlling a predetermined part of the camera based on the y-ta, a first storage stage provided in the camera body for storing data, and an accessory reel 6 that is detachably attached to the camera body. a second storage means for storing data at a rate of t:l/1; a setting means for setting data with the accessory attached to the camera body; and a setting means for detecting the end of data setting. A detection means and a response L2 to the output of the first detection stage detect the set delay. A storage control L stage for storing data in the second storage means is provided. In this case, the storage control means can be provided on both the camera body and the accessory. In addition, the accessories are IC
It can be a card. According to this configuration, when predetermined data is set by the setting means with the accessory attached to the camera body, the data is stored in the camera body and also in the accessory. Therefore, the saved data can be used even when the camera body is in a state where the camera body is not fully equipped, so it is easy to use the setting data of a plurality of accessories in combination. On the other hand, accessories can control other camera bodies using the data set. Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following explanation, the entire camera control system Z4 using an IC card will be described, and data storage of the data setting pressure range when the IC card is installed will be explained.
, will also be explained. FIG. 1 is a circuit diagram of the camera of this embodiment. In the same figure, (μC) is a microcomputer (hereinafter referred to as ``microcomputer'') that controls the entire camera and performs various operations.It has a ROM and can freely perform internal writing and reading. (AFct) is a focus detection circuit that performs focus detection,
It consists of a CCD, an fJI control circuit, and an AID conversion circuit, and it obtains subject information for the three distance measurement areas (described later), converts it to AID, and sends it to the microcomputer (//
Output to C). (LM) is a photometry circuit that performs photometry for four areas (described later), converts the photometry values into Δ/D, and converts the photometry values into microcontroller (μ
C) as luminance information. (DISPC) is a display control circuit that inputs display data and display control signals from the personal computer (μC) and causes the display section (old SP) to perform a predetermined display. In this embodiment, there are two types of IC cards: a mode setting card that sets the camera mode, and a program card that determines the exposure. Only one of these cards can be installed in the camera, and the camera is Based on the card
Controls specific modes and exposure blur. This will be explained in detail later. (ST) is an electronic flash device, (IF) is a camera (F) 7 An interface installed between the icon (μC) and the electronic flash device ffi (ST), (STC) is a photographic flash device (not shown) This is a light control circuit that receives the reflected light from the subject during the flash light emission that has passed through the book, and stops the flash light emission when the appropriate exposure amount is reached. (LE) is an L-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 first lens based on focus detection information, (TVC
T) is a shutter control circuit that controls the shutter based on a control signal from a microcomputer (μC), (AVCT)
is an aperture control circuit that controls the aperture based on a control signal from a microcomputer (μC), (MD) is a microcomputer (μC)
This is a motor control circuit that controls film winding and second rewinding based on control signals from. (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, (
DI) is a backflow prevention diode, and (Cmu) is a backup capacitor for the microcomputer (μC), which has a large capacity. (R*) (Cm) is a reset resistor and capacitor for resetting the microcomputer (μC) when the battery is installed. (τr+) is a power supply transistor that supplies tB to a part of the circuit described above. Next, to explain the switches, (SIIE) 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, the microcomputer (μC) terminal A signal changing from "L" level to rl (J level) is applied to (RE), and the microcomputer (
μC) will execute a reset routine to be described later. (Six) is a normally open exposure mode change switch, and the exposure mode is changed by operating this switch (SZS) and operating an up switch (5up) and a down switch (Sdn), which will be described later. (SFM) is a normally open function change switch, and functions are changed (for example, switching between quick shooting and single shooting) by operating this switch, up switch (Sup), and down switch (Sdn). (SCD) is an always-open card function enable/disable switch that switches the card function between disabled and enabled when the card is installed.
This is a disabled switch. C3cos) is a normally open card data setting switch that is operated when a mode setting card or a function card (program card) is installed, respectively, to change the mode setting or set data necessary for the function. (So) is a photometry switch operated to perform camera operations (for example, photometry and display of various data) other than autofocus (hereinafter referred to as rAFJ) operation, and can be turned on by simply touching the release button (not shown). It consists of a touch switch. The above switch (SEW)
(SFX) (SCD) (SCDS) (SO)
If one of the switches is turned on, the microcomputer (μC
) executes the interrupt flow of (INT,) in FIG. 3, which will be described later. (S,) is the AF switch that starts the AF operation, and when the first stroke of the release button is pressed, the
It becomes N. <SZ) is a release switch that is operated when performing a photographing operation, and is turned on when the second stroke (deeper than the first stroke) of the release button is pressed. (
Swn) is a one-frame switch that is turned ON when one frame of film is wound. (SAEL) is a switch for performing AE lock (exposure lock), and is composed of a normally open button switch. (SAF/M) is a focus adjustment mode changeover switch for switching between AF and manual focus adjustment. (SSt) is a normally open change data selection switch for selecting data to be changed. (SFLIN) is a normally open change data enable/disable switch that enables/disables the data selected by the change data selection switch (SS) when the mode setting card is installed and the data setting mode is set. .C5t++p
) is a normally open exposure mode combination selection switch that selects an exposure mode combination when a mode setting card is installed and the data setting mode is set. (
Sr1) 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. (SaC) is a back cover close detection switch that turns OFF if ONL is opened when the back cover is closed.
) executes the interrupt routine described below. (S, 1w
) 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. (SCD) is an IC card mounting switch that turns OFF when an IC card (CD) is mounted, and when turned OFF, resets the microcomputer (μCz) of the IC card (CD). (X) is the so-called
Becomes FF. (Sup+) and (Supz) are up switches that switch or add data to be changed;
dni) and (Sdng) are down switches that also perform subtraction. Except for changing the aperture value or shutter speed when the exposure mode is manual mode (M mode), each of the above switches (Sup+), (Supz), (Sd
ni)+(Sdr+z) are parallel switches, and when either the up switch (Sup+) or (Supx) is pressed, the up function is performed, and when either the down switch (Sdni) or (Sdn2) is pressed, If it is, it will perform a down function. When changing the aperture value or shunter speed in M mode (Sup +) +
(Sdn 1) means up and down the aperture value, (
Supz) and (Sdti2) function to increase and decrease the shutter speed, respectively. In addition, in the following, when the up switch (Sup) is referred to, it refers to either one of the switches (Sran+p+) l (Supz), and similarly when the down switch (Sdn) is referred to, it refers to either switch (Sdni) I (Sdnz). It shall refer to either one. Up switch (Sup)
, the operation of the down switch (Scln) is detected when the terminals (Isup) and (Isdn) each become "L" level. In Figure 1, the sliding track (old) common to each of the above switches
is connected to the ground potential point (GND). Table 1 summarizes the above-mentioned switches and their functions. Next, before explaining the operation of the camera of this embodiment, two types of IC cards used here, namely a mode setting card and a program card, will be explained. (1) Mode setting 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 deemed unnecessary), or to choose between two functions. The intention of the photographer by doing. 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 functions of this IC card, (i) 4
(ii) exposure mode selection; (iii)
) You can select the function of the AE lock button, etc. The four functions in (i) above are (a-1) Highlight reference/shadow reference exposure function (a-2) Exposure compensation function (a-3) Film advance mode switching function (continuous shooting/single shooting) (a-4) Spot AF/multi-point AF switching function, which allows the photographer to select the function necessary for the photographer. The display related to this selection is shown in Fig. 2(b) out of all the display contents shown in Fig. 2(a).
) are available. In FIG. 2 (1)), the functions correspond to the above-mentioned functions (al) to (a-4) in order from the left side. The photographer uses (a-1) highlight standards.
If you do not need only the shadow reference exposure function, use the second
It is displayed as shown in figure (C). For each selected function, the display regarding the use or switching of that function is as follows: Highlight - Criteria - Figure 2 (d) Shadow Criteria -
・−・・−・−Figure 2 (e) Exposure compensation + side −・・・・
・Fig. 2 (f) Exposure compensation − side −・・・・Fig. 2 (
g) Continuous shooting mode l O - - ~ - - Fig. 2 (c) Single shooting mode - - - - Fig. 2 (i) Spot A F - - --・-Figure 2 (j) Multi-point A F--
---1... Figure 2 shows 0(). Note that regarding continuous shooting/single shooting and spot AF/multi-point AP, even if one of the functions (for example, continuous shooting) cannot be switched, it is always selected. However, since switching is not possible, it is not displayed. The display in FIG. 2 (j2) shows that the exposure compensation function and the film winding mode switching function are selected, and that the exposure compensator side and single shooting mode are controlled. Next, 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) There is a shutter priority mode (S mode), P mode must be turned on as a basic rule, and the remaining 3
It is possible to select a combination of three modes (A, M, and S modes). Therefore, there are eight combinations: AMS MS AS AM ASM, and the display shows the selected combination among the four modes (however, PROGRAM is represented by P) in Figure 2 (E) when setting the mode. The display is performed as shown in FIG. 2(n), for example, and when the shadow is reached, the selected exposure mode is displayed [FIG. 2(0) (A mode selection)]. In addition, when in P mode, PROGR
AM is displayed (Fig. 2 φ)]. Next, to select the function of the AE lock button in (iii) above, (C-1) Hold the camera power in the AE lock state while pressing the AE lock button (C-2) Press the AE lock button once Pressing the AE lock button again in the AE lock state or turning the power hold OFF releases the AE lock state, and this display is not displayed during normal shooting, but in (C-1) when the setting is based on the card. In Figure 2 (b) (C-2), the display is as shown in Figure 2 (r). Note that the shutter speed and aperture value are normally displayed in this area as shown in FIG. 2 (S). In FIG. 2(S), 1000 is the shutter speed and 5.6 is the aperture value. Next, as a choice between the two functions, (d-1) film counter forward calculation or subtraction (d-1)
2) With or without auto-return at the end of the film (d-3) At the end of rewinding, part of the film leader is rolled into the cartridge or left outside the cartridge (d-4) With or without a camera shake warning buzzer (BZ); There are 16 possible combinations, and numbers are given to the combinations as shown in Table 2, and 0 is displayed as shown in Figure 2 (1) at the time of setting and other times. During normal shooting, this part serves as a film counter. (I[) Program card; A program card is used to control exposure programs and various camera controls, which are designed to take pictures of moving subjects in relatively bright places with a high-speed shutter that prevents camera shake. (Details will be explained later). Next, we will explain the operation of the camera using a microcomputer (μC) shown in Figures 3 onwards.
) 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 (S■)
turns OFF, and the terminal (RE) changes from “L” level to rH.
, the built-in clock starts oscillating, and the clock is also sent from the microcomputer (μC) to the IC card (CD) via the terminal (φ). Then, the microcomputer (μC) executes the routine (RESET) shown in FIG. In this routine, a microcomputer (μC
) first performs an initial setting (15) after the battery has been installed. This subroutine is shown in FIG. In FIG. 4, the microcomputer (μC) prohibits all interrupts to this flow and sets all output terminals to the "L" level. Also, reset all the flags in the RAM and set the flag (BATF) indicating when the battery is installed (11
100 to 1110), this changes the exposure mode to P mode, spot/multipoint AP to multipoint AF mode, and single shot (S).
/Continuous shooting (C) is changed to single shooting (S), and a mode is set in which exposure compensation, highlights (H), and shadows (S) are not performed. The contents of this functional data are shown in Table 3. Next, check whether the mode setting cards for the two types of IC cards mentioned above have been installed at least once, and the mode setting has already been performed.
Detect “ζ” by checking the contents of
Disable interrupts other than INT) and return (#13
5. Fee 140), if it is a mode setting method, which mode 1
’ has been set, check the contents of E”FROM (M
S 11゜"-M S b s contents) and determine the part to display the changed data. Highlight/shadow mode (H/S mode), exposure compensation mode (+7
−mode). Single shooting/continuous shooting switching mode (S/C mode), spot/
It detects whether the mode is set in the order of multi-point AF switching mode 4 (S/A mode), and if it is set, the change data for the first mode set is sent (to nail 145). -1182). Tables 4 and 5 show the RAM change date and E2PR setting mode data. Note that the step (1145-B82) corresponds to determining the position of a cursor, which will be described later, in terms of the display section. Next, 5゛, write the table λ of these setting modes in a row,
Controls sending data to the display control circuit (DISPC). First, set the terminal (CSDISP) to the "I" level, notify the display control circuit (DISPC) of data communication, create data, perform serial communication, and when the data transfer is completed, set the terminal (C5[SP) to 17 to r l-J level,
The end of serial communication is output to the display control circuit (DISPC) (11185 to #200). To briefly explain the operation in case of serial communication, first, a clock is output from the serial clock terminal (S(J)) in response to a serial communication command.In synchronization with the rising edge of this clock, the output side is 1 bit of data is output on the falling edge, and 1 bit of data is input on the input side in synchronization with the falling edge. By doing this as many times as necessary, the necessary data can be obtained. Figure 2 shows an example of the display in a normal shooting state. 11). In the example of Fig. 2 (u), the display contents include shutter speed (1000), aperture value (5, 6), and AE.
The number of films (including the presence or absence of film) [17], and the function mode (the figure shown on the bottom line) are displayed.
1 byte (8 bits 25
It is sufficient to prepare 6 different types. In the display control circuit (DISPC), these signals are input. ,
The data is decoded and a predetermined display is performed. Now, the necessary data is the bit (MSl) in the E"P ROM to display the shutter speed and aperture.
, ) data, AE mode display is E"FROM focus (MSb6 ~ hSbII), film number display is E"PRC team's focus) (MSb, ~MSb
, 2) Regarding the function mode, E
"FROM bits (MSb.~11sb,), change data bits (CDbo-CDhz),
The controller (μC) processes these arcs and provides them as display control data to the display control circuit (DISPC). In this way, an example of the display displayed on the display unit (DISP) is shown in Figure 34 ( It is shown in a). In the same figure, (1) is a cursor. The microcomputer (μC) is (1205) and is 0.5
Wait a second and let this display run for 0.5 seconds. and,
Number of films stored in E"PROI'l N+ (M
Sb13-MSb+a). The contents of film sensitivity Sv(MSl)1g-MSbz4) are read out and transferred to the number of films N+ and film sensitivity Sv of the RAM. Thereafter, card data communication (2) is performed to know whether the IC card is installed or not and the type of IC card (#210). The subroutine of this card data communication I is shown in FIG. 5(a).
Shown below. In the figure, first, a terminal (Cscn) is used to inform the IC card (CD) of communication with the IC card (CD).
) to "H" level, set to data output mode, and send data (see Table 6) to the IC card by serial transfer without indicating data communication I (#300 and 11305)
. The predetermined time required to input this data on the IC card (CD) side, create and output the necessary data is
C) waits (g310). Then, since data is sent from the IC card (CD), it operates in input mode and performs serial transfer with the IC card (CD) (l131
5) When this is completed, set the terminal (C5CD) to the "L" level (320). Next, the type of IC card is determined in (1321), but if it is a mode setting card, the data only indicates the type of IC card, so the process immediately returns.
On the other hand, in the case of a program card, the data includes not only the type of IC card, but also the AF mode continuous/one shot (details will be described later), AF zone spot/multipoint, metering zone spot/multipoint, continuous. Since function data indicating either photo/single photo shooting or no specific setting (setting by the photographer) is included, next determine whether or not the card function is selected (# 322)
, when the card function is selected (CDFNF-1), the function data Fbz, Fbs, Fbs, Fb+
Rewrite the bit of t and set the data 1323),
Return. On the other hand, if the card function is not selected, the process returns without rewriting the data. Returning to Figure 4, the microcomputer (μC) inputs the input data (
(See Table 7), it is determined whether or not an IC card is installed, and if it is not installed (Ckbo-0), the IC card is
Return without displaying the type of C card. When an IC card is installed (Ckbo=1), the type of IC card is determined and the mode setting card (Ckb, ~Ck
b&-00%, where indicates a hexadecimal number),
Display data for this IC card (Ckb, ~Ckbi)
1230), program card (Ckb+-
Ckbi=01s), program display data (
Ckbo to Ckbh) are created (1245). In these cases, the above data Ckb, ~Ckb, and IC card installation data Ckbo are respectively set as display data on the shutter speed display section, and other display data is set to "0° (not set)." The display data of is sent to the display control circuit (DISPC) (1250
~! 260) is displayed for a certain period of time (0.5 seconds). Figures 34 and 34) and (C) show display examples in this case, where (b) is the display when the program card is installed, and (C) is the display when the mode setting card is installed. Here, the characters PRO and F-SE are the bits Ckb+ -
It depends on Ckbi and CARD depends on Ckbo. The microcomputer (μC) waits for a certain period of time for this display.
270), then enable all interrupts (127
1), proceed to step (1110) in FIG. In Fig. 3, after completing the initial setting (15), the exposure mode change switch (SEX), function change switch (SFM), card function enable/disable switch (ScD
) It is determined in step (fflo) whether either the card data setting switch (Scos) or the photometry switch (So) is turned on based on the level of the terminal (IPS), and if none of the above switches are turned on. If (IP5='HJ), step (
+115), and if it is set, after installing the battery, jump to step (145) as if this step has come without doing anything, and follow the flow from step (145) to turn off the display and turn off the IC card ( CD). First, set all data to “0”
(not set) and sends this data to the display control circuit (D
ISPC) (#45 to 1160). Therefore,
The display will be completely off. Note that a command for turning off all lights may be provided and outputted to the display control circuit (DISPC), so that the display control circuit (DISPC) turns off all lights in response to this. The microcomputer (μC) sends the turn-off data to the display control circuit (DISPC) as described above, and then sends a sleeve sign (instruction to stop the IC card) signal to the IC card (CD) (165 to j175). is formed by bits C5bo and Csb both becoming 1 as shown in Table 6. After that, the transistor (Try) is turned off by setting the terminal (4) to "L", and the flag indicating AE lock (AELF) and the flag indicating when the battery is installed (BATF) are turned off.
), and all interrupts are enabled and stopped (177 to #95). Note that this halt (HALT) also halts the oscillation of the built-in clock. In the above step (1110), five switches (
StM), C5rM), (Sco), C3cns
), (So), the process proceeds to step (190), and a flag (BA
TF) and the next step (1110
0), sets a flag (OPF) indicating that one of the above five switches has been operated, and executes the routine
is executed, and the process returns to step (110). Routine [ScD is a routine that performs photometry, AF, display, exposure control, etc., and will be described in detail later. In step (110), when none of the five switches in item 1 are turned on and the battery is not installed (
BATF = O) has a -degree routine [determine whether the flag (OFF) that is set when passing through SO3 is set (+115.+125), and when this flag is set, the power supply is turned off. Reset and start the holding timer (T) and turn the flag (OFF)
(1130.1135), here, the timer (T,) is reset and started (130) from - degree step (110) to (190) (+11
00), I passed through Lucia (ft100), but currently none of the five switches mentioned above are pressed, but considering that there is a possibility that they will be turned on again, I will hold the power for a certain period of time. The reason for resetting the flag (OPF) (+135) is to indicate that step (#30) has been passed. In step (+125), if the flag (OFF) is not set, step (130) (
Skip 135) and detect whether the started timer has passed 10 seconds or not +140)
, If 10 seconds have elapsed, proceed to steps after (145) to turn off the display and stop the IC card (CD).If 10 seconds have not elapsed, proceed to step (#110)
Enter [SO3] and repeat the routine. Next, we will explain how to control the camera when an IC card (CD) is inserted.
A signal changing from the "L5" level to the "11" level is input to NT), and the interrupt routine (COINT) shown in FIG. 4 is executed. Then, when entering this routine, the microcomputer (μC) sets a flag (OPF) to stop lens driving and maintain power supply (11290.112).
92), and set the flag (CDFNF) to forcefully add the card function [-L (1293), and set the flag (CDIF) so that the display control described later does not display the card type. (11294),
Setting this flag causes the post-card installation routine (
SO), the type of installed card is always displayed the first time. Next, 1. In order to give top priority to the display of the type of IC card installed, in step (1295) all other interruptions to this flow are prohibited, and the process proceeds to steps after step (1210), and as described above, the type of IC card is displayed. Figure 34 (+))
Or, after displaying for a certain period of time as shown in (C), all interrupts are allowed and the original flow [step (13) in Figure 3] is performed.
0)) Return. Switch (SEM), (SFM) with its interrupts enabled. If any one of (Sco), (SCD!), and (So) is turned on, the interrupt pin (INTI)
When a signal that changes from the rH level to the "L" level is input, the interrupt (INTI) operation shown in FIG. 3 is entered, and the flow from step (190) onwards is executed. In addition, in the stopped state (HALT), any interrupt (INT, ) (INT2) or [:CDINT
Even if :1 is applied, the clock starts oscillating, and the clock (φ) is also sent to the IC card (CD). Next, the above (SO) routine will be explained with reference to FIG. First, disable (INTi) interrupts for this flow (+1400). This is because if the interrupt (INT,) in Figure 3 occurs during this control, the control operation will not proceed further.Next , (1405) microcontroller (μC)
Set the terminal (PK) of the inverter (PK) to the "■1" level 2,
By applying a low level to the base of the PNP transistor (Tr+) through IN, ), the transistor (Tr+) is turned ONL, the photometry circuit (LM), and the AF circuit (
AFCT), etc. Next, the lens circuit (1,
Enter information specific to the interchangeable lens from E) (1410)
. This will be shown and explained in Part 7. First, the terminal (C3LE)
) is set to the "1" level (1600), and serial communication is performed to input information from the lens (#605). This information and 1 to 1 indicate whether or not the lens is attached, and the aperture of the lens.
value (^νo)+maximum aperture value (Avmax), distance information, focal length information, a coefficient for converting a defocus amount into a lens drive amount (hereinafter referred to as "K value"), and the like. After inputting the lens information, connect the terminal (C3LE) to r.
Return as LJI/Bell (1610). Returning to Figure 6, the microcomputer (μC) continues to input electronic flash device information from the electronic flash device (ST).The information includes a guide number (GN) indicating the amount of light emitted.
There are three types of information: whether the battery is in a fully charged state, whether it is forced light emission, or whether it is automatic light emission (this will be described later). Here, the operation of the information communication method will be explained. First, FIG. 9(a) shows an electronic flash device (ST),
FIG. 9(B) shows a circuit diagram of the interface (IF), and FIG. 8 shows a flowchart for inputting data from the electronic flash device of the camera. In Fig. 8, the microcomputer (μC) is
) for a certain period of time (1+) and outputs this signal to the electronic flash device (ST) (1650).The electronic flash device (ST) detects the time (1+) of this signal and enters data output mode. It recognizes this and outputs data according to the clock from the microcomputer (μC) (11655). The interface circuit (IF) shown in FIG. 9(b) outputs a signal from the terminal (C3ST) of the microcomputer (μC) to the terminal (STY) of the electronic flash device via the OR circuit (OR□). At this time, both signals input to the OR circuit (OR11) are at the "L" level. In the electronic flash device ff (ST), the signal from the terminal (ST l) is input to the AND circuit (AND++), so the AND circuit (AND port) becomes active, and the signal from the oscillation circuit (OSC) is input to the counter (CNT+z). ). The counter counts this and measures the time (t,). When the time (1+) is counted, the terminal (T + ) is set to "H" level and the RS flip-flop (SR11) is set. At this time, the RS flip-flop (SR+t) remains reset, and its output is at the "H" level. Therefore, the AND circuit (AND+z) becomes active. Next, the microcontroller (μC) uses a serial communication clock (
SCK). This clock (SCK) is output to the terminal (STI) of the electronic flash device (ST) via the OR circuit (ORz+) of the interface circuit (IF). In an electronic flash device (ST), the input clock (
SCK) is connected in parallel/through an AND circuit (AND+z).
It is input to the clock terminal of the serial conversion circuit CP/S). This parallel/serial conversion circuit CP/S) outputs a guide number (GN), a signal 9 indicating a charging completion state, and a signal indicating forced light emission or automatic light emission in synchronization with the clock. Electronic flash device f (ST) counter (CNT++)
counts the input clock (SCK), and when a predetermined required number is counted, rl (J level is OR circuit (O
R,, ). This signal is an OR circuit (ORz)
, counter (C
NT+t) is input to the reset terminal, and the counter is reset. The counter (CNT1) is a counter that is reset after counting a predetermined number of clocks. In addition to the circuit elements described above, the electronic flash device includes a battery (Est) as a power source, a booster circuit (UV) for boosting the voltage of the battery to the voltage required for flashlight emission, and a voltage from the booster circuit (UV). A rectifier diode (D++) that rectifies the output voltage, a main capacitor (MC) that stores the energy necessary for flash light emission, and a main capacitor (M
C) Charging voltage detection circuit (CVD) that detects the charging voltage
, a light emission control circuit (FC) that controls the start and stop of light emission.
C). Returning to FIG. 6, after the microcomputer (μC) inputs the above flash data, it performs card data communication I with the IC card (CD) in order to determine the type of IC card (CD) (1420). Since card data communication I has already been explained with reference to FIG. 5, the explanation will be omitted here. After communicating the card data, it is determined whether the flag (SETF) indicating that the IC card is inserted and the data setting mode is set is set (114).
25), and if it is not set, check whether the AF start switch (S,) is turned on or not by checking the terminal (IP).
&) is determined based on the level (1427). When the above switch (S,) is turned on (IPi='L
4 level) and performs AF control (#429). on the other hand,
When the flag (SETF) indicating the data setting mode is set or the switch (S,) is set to 0FF (I
Pi = 'HJ level), in order to prohibit AF operation, a signal to stop the AF drive motor is output to the lens control circuit (LECN) to stop the lens drive.
31), flag indicating that AF is not being performed (AFN
F) (1435). When the data setting mode is set in this way, by prohibiting AF control and giving priority to data setting, it is possible to prevent the AP start switch (St) from being pressed by mistake during data setting. AF operation is not performed even if the camera is turned on. Here, for the A F i+J control described in -1'-, the first θ
The flowchart shown in Figure (a) and Figure 10 (l)
This will be explained with reference to FIG. 11, which shows the focus detection range in the photographic screen. At that time, the photometry range will also be explained. First, in FIG. 1, the rectangle (2) in the example shown in FIG. 1 indicates the photographing screen. Among them, (LMI)-(1, M4) indicates the photometry range, and (AF+) =-(AF3) does not indicate the focus detection range. Regarding focus detection range 1. In other words, the camera is
-/Multi-point AF can be switched, and when AF is selected (C, 7), AF is performed based on 14 pieces of subject information in the focus detection range (AFL), and multi-point AF is selected. Sometimes, the three ranges (AF + ) to (AF
AF is performed to focus on the subject closest to the camera from L). Hereinafter, (AF,) will be referred to as the first island, (Ah) as the second island, and (AF,) as the third island. To explain the AF control shown in the flowchart of FIG.
5). Next, if a lens is attached, it is determined whether the focus adjustment mode is the AF mode based on the level of the terminal (IPIo) (1710). Then step 2 (
#705) and the lens is not attached, or (710) and the AF mode is not set (man.) 8 mode. If the camera is not performing AF (IPio-'HJ level), please refresh the flag (AFNF) indicating that AF is not being performed. (It”, e rig level) resets the flag (AFNF) indicating that AF is not being performed (+1715). Control the accumulation (integration) of 1, and after the integration is completed, input the data obtained by digitally converting the integral value (11720, 1725) 6.
-Detect whether it is AF or not (detected by Fb2 on function day/evening), and if it is spot AF (Fbz = 1), the second
Set the flag (AP2F) indicating that AF is being performed based on the island.

[・Si2, input date/evening
From the second island's main focus I (DF2)
Calculate and use this as the defocus amount for lens driving (1
735~$1745). On the other hand, when the multi-point AF mode is selected, the first
．． Second. Day focus amount (DF) of the third island
Calculate and select the subject closest to the camera among the items listed in 1.
Calculate the day focus amount (n750 to 1765)
, the first routine for determining the day focus amount is
As shown in Figure 0 (b) and explained, the day focus amount is now
If the subject is far from the focus position of the lens
) is negative if the rear bin (the subject is at the lens bin [・position]).
(on the camera side), it indicates a positive day focus amount.
and its absolute value indicates the size of the day focus.
To detect the object closest to the camera,
Day focus amount of three islands is maximum (positive)
, including negative values), it is sufficient to detect the day focus amount.
It is assumed that the main subject exists in the focus detection area. In Figure 10 (1)), the microcontroller (μC) first
Reset the flag indicating the land (AFIF~8F3)
Sesotosi detects a large amount of day focus islands,
The detected island day focus amount is used by the lens driving device.
As the amount of focus, depending on the island, two series.
flag (AFIF to 8F3F)
(II 810-diagonal 865). Returning to Figure 10(a), the microcomputer (μC)
Determine whether or not it is in focus from the driving day focus amount (#770)
If the focus is determined, a flag indicating the focus status (8
FEF) to [+1780], and then focus.
Sound the buzzer for a certain period of time to notify this 117B2
), return. Focus at step (1770)
If not, use one-shot AF (-once in focus, then
This stops the lens drive, and at this time focus detection also stops.
Stop j- is fine) or Container 1 as AF (even after focusing
Follows the subject17, depending on the determined defocus amount
Data Ckb (to this) is used to drive the lens.
(described later) (#782).
In the case of close-shot AF (Fb [!=0), the flag indicating focus
(1783)
), and if it is set, return. If not set or continuous AF
If (Fb@=1), proceed to step (JI785).
control the lens drive. At step (1785)
is the driving amount (N) of the lens, and the day focus amount (DF
) by the value of , and then step (
1790) to drive the lens, and step (1790)
795) to reset the focus flag (AFEF).
and return. In addition, at this step (+1790)
The lens drive circuit (LECN) drives the lens as described above.
By driving the lens by a value corresponding to the amount (N)
It will be done. Returning to Figure 6 again, the microcomputer (μC) is connected to various key switches.
Controls changes to various data caused by switch operations.
Do (1440). To explain this as shown in Figure 12, first, each key switch
Check the status of and store it in memory (11900). Next, set the flag (SET) indicating that the card is in card setting mode.
Determine whether F) is set in (1905).
, the exposure flag (SETF) is set.
Step (1) to avoid changing the output mode or function.
1930), the flag (SETF) is set.
If not, proceed to step (1910) and set the exposure mode.
Is the mode change switch (si, 4) turned on?
judge. Here, the switch <5tS) is turned on.
When the change subroutine (1915)
Proceed and return (details later). The above switch (S
■) is not ON, step (1920
) and the function change switch (SFll) is turned on.
Determine whether or not there is. And this switch (So)
When it is ON, the change subroutine (I9
Proceed to step 25) and return. Here, the above two subroutines are shown in Figures 13 and 14.
The first step is to change the exposure mode.
The up switch (Sup+ or 5upt) is turned on once
Each time, proceed to P-4A-+5-4M and then further to P.
Proceed cyclically as if going back, and press the down switch (Sd
Each time n + or 5dnz) is turned on once, P-
Proceed as A4-3-M, and then proceed to M after P, as above.
It now moves cyclically in the opposite direction to the up direction.
However, the exposure set by the IC card (CD)
It changes depending on the output mode, and the mode that is not selected is
be jumped over. To explain this with reference to FIG.
) is the up switch (
Determine whether Sup+ or 5upz) is turned on.
and if it is not turned on, step (11105
Proceed to step 5). If it is ON, proceed to step (fl
lo05) and the RAM function data (Fbn) (
Fbo) (Fbl) and as a control exposure mode
Determine whether P mode is currently selected and check if it is selected.
If so, proceed to step (11010) and insert the IC card.
Check whether the A mode is selected by the internal E”Pl.
? OM's (?1sb,) ~ (Msbs) (See Table 4)
) and if it is selected, change the exposure mode to P or
to A, and set function Q 9 (Fbo+Fbl) to
Change from (0,0) to (0,1) and return (11
015). In the above step (+11010), I
It is determined that A mode is not selected by the C card.
If so, proceed to step (#1025) and switch to S mode.
is selected, and S mode is selected here.
If not, proceed further to step (11040).
Check if M mode is selected with
Find the selected mode and
If there is a code, it will be set. and
, when A, S, M mode is not selected, that is, P mode
When only the mode is selected, it becomes P mode (11
050). Similarly, select A mode as the control exposure mode.
It's Ruto! (FbO, Fbl =0.1)
Niha, S mode is selected by the IC card,
Is M mode selected when it is not selected?
and changes the exposure mode to the selected mode.
Change bits (Fbo) and (Fbl) and return
(11020-1030). If S mode is currently selected as the control exposure mode,
When (FbO, Fb, = 1.1), M mode is IC
Determine whether it is selected by the card, and
If selected, select M mode, and if not selected, select P mode.
mode and return (11035-1045)
, when the control exposure mode is not S mode, that is, M mode
When this happens, the mode then becomes P mode. This is the actual implementation
This is because the P mode is always selected in the example. In step (111055), the down switch (S
dn or Sdn, l) is turned on, the exposure mode
・The above-mentioned upswitch is
(Sup+ or 5upz)
Therefore, the explanation will be omitted. In addition, both switches (Sup) (Sdn) are OFF.
If F, do nothing and return. Next, the function change switch (SFM) shown in Fig. 14(a)
The control when is turned on will be explained. Microcomputer (μC)
has the four functions mentioned above, i.e. highlight/shadow (
H/S), exposure compensation (+/-), single/continuous shooting (S/C)
), 1 out of Spot AF/Multi-point AF (S/A)
The E'PROM bit (M
sb, -Mshs), and when these bits are
If is not set, it is assumed that there is no mode selection.
Return (11200)
If the card is set to 1, at least one 7th card is selected.
Assuming that the data has been changed, the step (+11
205) Execute the following flow. The microcomputer (μC) is
, the switch (SSF) indicating the function to be changed is turned on.
Determine whether it is ON or not, and if it is ON, change it.
The desired function progresses from II/S and +/- → S/C → S/A,
Proceed cyclically to S/ and then back to H/S.
However, the function is not selected depending on the IC card.
You are supposed to jump over it. At step (+11210), the machine that should be changed now
When the function is 1 (/S mode) (R shown in Table 5)
Ato1 data CDb, , CDb, , CDb, = 0.0
．． 0), 10/- mode is selected by the IC card.
Step (11215)
(MSb,), ÷7-mode is selected.
If the
Data CDb. ~ CDb2 = 0°0.1 as Rita
(111220). +/- mode is selected
If not, proceed to step (11227) and S/C
Determine whether the mode is selected by (MSbz)
, when this is also not selected (MSbz = 0)
Proceed to step (11240) and select A/S mode
(MSbx) and select this as well.
If not (MSb3=O), take another step.
(11250) and 1 (/S mode is selected.
(MSbO), at least 11/S
Since the mode is selected, change the function of H/S mode.
Furthermore, it is assumed that CDbo to CDI+2=O, O, O. S/C mode. This cannot be changed when A/S mode is selected.
Set CDbo-cab to the mode
. Similarly, the next mode (
For H/S mode (/- mode, for +/- mode S/
For C mode, S/C mode, S/A, S/Δ
mode (H/S mode) is selected by force/- mode.
If j-1 is selected, change mode
The next mode will be selected, and if it is not selected, 11/S→
IC car in order of ÷/-→S/C→S/71→H/S--
Search for the function selected by the
Data CDb, -CDbZ are used as functions whose functions should be changed.
Set and return. As you will see...), it is selected by the card in advance.
modes that are not present will be skipped each time the mode is changed.
Ru. For example, if the selected changeable mode is ÷7~ and S/
In the case of C, the function change switch (SFM) is pressed.
If so, the flow goes to step (It1225),
Now proceed to step (#1227) and set S/C mode.
This is the mode that should be changed. In terms of display, this means
- means that the sol moves from +/- to S/C. Next, when the function change switch (SFM) is pressed again,
The flow goes to step (11235) and from here
UP (+11240) → (#1250) - SH (#121
Steps to 5), and the mode to be changed to 10 is displayed -F
The cursor moves to +/-. In these cases, H/S
mode and A/S mode are not selected, so change
This effectively means that the code settings will be skipped. At step (+11205), switch (SSE
) is not ON, step (#1265)
Proceed to. In step (11265), the up switch (Sup+
or Supg) is turned on, and
If so, specify what function should be changed.
H/S mode
If so, data the currently set mode (Fb,)
(Fbff) and selects the next mode (→H-+
S 4H/No S to proceed cyclically)
, data (Fbh), (pbt) should be set 111
270.11275), return. If the function is in +/- mode, use (11285) to compensate for exposure.
Add 0.5 to the amount (ΔEv) and use the sample to determine its magnitude.
Proceed to bluetin (112B?). This subroutine
As shown in Fig. 14(b), the correction amount (ΔEv) is positive.
If so, use data Fb4 as + side correction. Fbs=0.1
For negative side correction, data Fb,, FbS=1.
If the correction is zero, the data is treated as no correction.
TaFb4. Return with Fbs = 0.0 (1
11350-11370). Returning to Figure 14(a), if it is in S/C mode, the data
Depending on the data (Fbs), the current mode can be set to single shooting (S) or quick shooting.
Determine if there is a mode and set the data to be the opposite of the current mode.
11295) and return. The above three
Mode (H/S mode, +7- mode, S/C mode
(), that is, when in S/A mode,
The current mode is AF (S) or multi-point AF (A).
Determine whether there is a
Change the data (pbz) so that it is the opposite 5t30
0), return. In step (11265), the up switch (Su
p or Supg) is not ON, step (
11305) and press the down switch (Sdn+ or
5dnt) is turned on, and determines whether it is turned on.
If not, return. If it is turned on, H/
When changing modes within S mode, the order of changes is
The opposite is true (←H4-3-H/S not available←), and 10/
- mode, 0.5Ev from exposure compensation amount (△Ev)
Other than pulling, use the above-mentioned up switch (SupI or
5upt) is ON, so the explanation is as follows.
Descriptions are omitted (1310-11340). Returning to Figure 12, exposure mode change switch (SIJI)
. If both function change switches (SFX) are OFF,
Up switch (Supt, Sup) and down switch
Aperture value (Av) by switch (Sdnl.5dnz),
Showing the subroutine for changing shutter speed (TV)
Proceed to step (m927). This subroutine is shown in FIGS. 21(a) and 21(b) and explained.
Then, the microcomputer (μC) first switches the up switch (Su
Step whether pI or 5upz) is ON or not.
(11800), and if it is not turned on, the
Go to the top (111805) and down switch (Sdr+
, or 5dnz) is turned on, and
Returns if not N. Up switch (
When SupI or 5upt) is ON, the step
Proceed from step (11800) to step (111810).
, determines whether the mode is M mode or not. Here in M mode
At a certain time (Fba, Fb+ = 1.0), the second up
Determine whether the switch (Supz) is turned on or not
(#], 825). Shutter when turned on
Current shutter speed as a change in speed (Tv)
In addition to 0.5Ev in degrees (TV), a new shutter speed (
Tv) value, which is the maximum shutter controllable by the camera.
Determine whether the motor speed value (Tvmax) is exceeded.
(11850.11855). If this value is exceeded,
If the maximum shutter speed (Tv) value is
tar speed (Tvmax), nothing if not exceeded
Return without doing (11860) Step (alB2
5), the second up switch (Supt) is turned on.
If not, that is, the first up switch (SupI) is ON.
is in the aperture value change mode.
Step (11830) sets the aperture value (AV) to 0.5Eν
This is the maximum controllable aperture value (Av+max
m835), which determines whether the
When the aperture value (AV) is the maximum aperture value (Av
max) 111840), if it is not set.
If so, proceed to step (11845) without doing anything and set
If it is P mode,
Step (1190) of the flowchart in FIG. 21(b)
Proceed to step 5) and set the shutter speed (Tv) to 0.5Eν.
I'm depressed. Returns if not in P mode. If it is not M mode in step (111810),
Step (11815) and check whether it is P'E-mode or A mode.
mode and determines whether it is in P mode or A mode.
On the other hand (Fb6. Fb, = 0.0 or 0.1)
If so, proceed to step (#lB50) and set the aperture value (AV).
Up control is performed, neither is the A S mode.
When (Fh..Fib,=1°1), the step (
Group 1850) and increase the shutter speed (Tv).
Downswing at the control step (11805)
When (Sdn+ or 5dri1) is ON and C is on,
Proceed to step (111865) in Figure 21 (I)),
Determine whether or not it is in M±・- mode, and it is in M mode...
When (Fbo, F111=1.O), 2nd down switch
Tsuchi (Determine whether SdnJ is ON or not (old)
880), the second down switch (Sdnz) is turned on.
If the shutter speed (Tv) is lowered,
O,5Ev 'i Calculate and return (Mu1905
). When the second downswing (Sdnz) is F, step
(H885) to lower the aperture value (Av) and set it to 2, then 0.
．． 5F++ subtract, then step (+11890)
Determine whether the peak is smaller than the open aperture value (AvO)
If the aperture value is small, change the aperture value to the maximum aperture value (AV, ) and -
4ru (11895). Next, step (41190) determines whether it is in P mode or not.
0). J to the steno knob (111890)
7. The aperture value (AV) is larger than the open aperture value (static).
If it is not small, skip step (11895)
and enters step (+11900). This step (
ax900), if it is P mode, the above-mentioned 21st
Aperture value increase control 7 Ll −(+11
850-111860) AM advance, unless in P mode
I will return. At step (+11865), if it is not M mode
Steps (11870) and (1875)
Determine whether the mode is P mode or A”1B mode, and select P mode.
When in mode A, step ([1
885) Proceed to the subsequent flow for controlling the aperture value reduction.
, otherwise assume S mode and step
(11905) to control the slowdown of the medium ivy speed.
Let's do it. Returning to Figure 12, the aperture value (AV) and shank
・-Stage showing the routine for changing the speed (Tv)
Knob (+1927) After 4E, slap again t (#
905) 7F Indicates that the card setting mode is 2-
After it is determined that the flag is set, the step
- Proceed to step 7 (tt930). In this step (+1930), you can configure the
Always open switch to enable or disable specified functions.
Determine whether (scll) is ON or not 12, ON
If you have C, please use the cover of Su.
- The function enable/disable switch on (Srl, ON)
Go bluetin'. This is shown in Figure 15 (2, explained. First, two steps (
11400) Mukooi ζ IC card (CD) to camera
Determine whether it is loaded or not based on data (Ckbo)
If the IC card is not loaded (Ckho=O
), return immediately. [−de setting force・−de is loaded
If it is, enable/disable the power/defunction switch.
Srp) was operated Jl, and this So13-- degree,
Whether or not the flag (C leaf) indicating that
is determined (11405). i, if chit is ticked
is already 1. when being operated. ″: Switching f-enabled/disabled
Return the item as if it had been completed. set
If not, proceed to the next step (+11410).
, set this flag (CDF) to 1 and then step (Liu)
1415) indicates whether the force/do function is enabled/disabled.
73g (CDFNF)' is determined and set to 7.
If not, press Lζ to enable the card function.11
420), if it is set, reset l-1~
Disable card function and L2”C (H1425), return
:/-1-6 Steps shown in Figure 12 (lt93
0), the card function is disabled/disabled switch.
When (sen) is ON, the f i-]-! Two consecutive yo・u
Figure 15? , Kosou 2. 2, but the above steps
(+1930) to enable/disable card function/f Sochi (
When So) is OFF, the process advances to step (#940). Figure 16 shows the flow of the first stage and knob (+1940).
To explain with reference, first, in step (H1450)
Determine whether or not the C card is installed, and press the
When the person is not dressed properly (Nippa'-Yukbo-
0) C return and IC card is loaded.
When (Ckbo = 1), step (11455
)! , this step - FiFib step (0
1405) Flag indicating that the following flow has been passed once
Determine whether or not the (CDF) has been seso I.
When the flag (C11F) is set, the next step
(11460) Please, retouch this and ref-2.
/ CI, flag (CI) F) is seven times
Miki returns as is. Returning to Fig. 12, the microcomputer (71C) t;
-Mode change using IC card (1945), or
is a normally open switch that sets and resets the data configuration mode.
It determines whether the switch (Scos) is ON or OFF, and this
In case of N, in case of OFF, control of each subroutine
Through the steps related to control (1955) and (#950)
is the return. This is shown in Figures 17 and 18 and explained.
I will clarify. First, in Figure 17, the switch (Sees) is turned on.
It shows the subroutine when the microcomputer (μC)
is the mode setting card in step (#1500)
is installed, and the card is installed.
If not (Ckb1~Ckbi”00H), immediately
Return. If a mode setting card is installed
(Ckb+-Ckb6=0ON), this flow is 1
A flag (CDSF) indicating that the degree has been passed is set.
Let's judge whether it's there! 11510), not set.
11515), set this.
If so, skip step (11515)
Return. Next, O of the switch C3cbs) shown in FIG.
To explain the FF subroutine, first the mode setting car
In step (11550), check whether the card is installed or not.
Determined, not installed (Ckb, -Ckb, ≠00
8) If so, return. If installed (Ckb
+-Ckbi-0 (1+), even if the switch (S
cn,) is operated and the flow of the concerned (5cos ON) is
A flag (CDF) indicating that it has been executed is displayed.
In the step (111555) of determining whether or not
Returns if (CDF) is not set (
11555), the flag (CDF) is set.
When there is, it is used to enter or exit data setting mode.
Switches (ScDs) are turned on and off during
Yes, use the data setting model to determine either of these.
Whether the flag (SETF) indicating the
(11560), and as a result, it is set.
If it is determined that the
is reset in step (11570), and then in step (11570).
(11572) to write data to E”FROM.
Set the flag (WRTF) indicating
s) has finished canceling the data setting mode.
As, in step (111575) flag (CDF)
Reset to cancel data setting mode. set
If not, it is a transition to data setting mode.
Set this flag (SETF) as (1156
5), reset the flag (CDSF) and perform (11)
1575), return. As described above, the key setting control shown in Fig. 12 is completed.
Then, the microcomputer (IC) performs step (1) in FIG.
440) to step (+1442), where I
A flash will appear to indicate that the C card is installed and the data setting mode is activated.
Determine whether the lag (SETF) is set and set
If it is, proceed to step (1455) and explain later.
The routine for card data communication H is executed. set
If not, proceed to step (1445) and record the photometry data.
input the data from the photometry circuit (IJI) and use it for exposure.
Create pot photometric values. Here, as shown in Figure 11,
Photometry range and microcomputer (μC) photometry shown in Part 19
Measure by referring to the data input and creation flowchart.
The creation of light values will be explained. In Figure 19, first
The microcomputer (μC) sets a flag (AEL) indicating the AE rotation.
Step (11160) determines whether or not F) is set.
0), and the flag (AELF) is set.
When the photometric value is updated, the process returns. When the flag (AELF) is not set, the end
Set the sensor (C5LM) to rH level and turn on the photometry circuit (LM).
command to output photometric data and perform serial communication.
Do (+11605, 11610). Through this communication, the four photometric ranges shown in Figure 11 are
Input the brightness value (Bv+ to BV4). After completing the communication
Set the terminal (C5LM) to “L” level (111615
). Then, in the next step (W1620), spot metering
Determine whether it is selected or not, and when it is selected (
FbI! = 1), the brightness value (Bvz) of the photometric range (LMz)
) is the spot value (Bvsp) (111660). Multi-point mode key (Fb, 2=O) is step (#
1620) to (1622) and the focus cannot be detected.
Determine whether the flag (AFNF) indicating
and if it is not set, the step (#
1660) and select the small photometric range (t, M
The value is returned as a spot value (Bvsp). Hula
When AFNF is set, the lens
The image magnification β is calculated based on the distance information and focal length information input from
is calculated from β-focal length/distance (11625) and
In the next step (11630), this image magnification is
It is determined whether β is less than a predetermined value (K), and the photographed image is
Determine the size of the subject that occupies the area. Must be greater than or equal to the specified value
In this case, assume that the object is large and perform each measurement in step (n1640).
Luminance value of light range (u+), (t, Mz) (LM3) (
Bv+), (Bv,). The average of (Bv,) is the spot photometric value (Bvsp) and 1-
7. Return. When the image magnification β is less than a predetermined value, the image magnification β is used for focus detection.
The photometric range including the focus detection range is the photometric value of the main subject (B
vsp). In this example, these focus detection ranges are
Which flag (AFIF-AP3F) is set to indicate
The range is determined by whether the flag (AFIF) is set.
If set, the brightness of the photometric range (LM I)
The degree value (Bv+) and flag (AF2F) are sen!・Been
If there is, the brightness value (Bv,
), when none of the flags is set, i.e.
The day focus amount of 3 islands (AP,) is selected.
brightness (a(Bv,
) are respectively the spot photometric values (Bvsp) (1116
45-11665). After determining the Suboso i and photometric values in this way, the microcomputer
(μC) proceeds to step (1450) in Figure 6.
This is shown in Figure 20.
7 will be explained with reference to the flowchart 1. Furthermore, this
To release the AE lock, press the AE lock switch (S
AEL) is pressed once and as long as it is pressed.
The AE lock is activated, and the AE lock switch (SA□
, ) is pressed or the power self-hold is released, the AE lock is activated.
mode in which the lock is released (10 seconds hold mode),
AE lock state only while pressing the AE lock switch
There are several modes, but these modes are not compatible with IC cards.
selected by In Figure 20, the microcomputer (I
C) First, in step (+11700), the above
Which of the two modes is 1'?
Judgment based on M data (MSbs) and 10 seconds baud.
When in mode, go to step (l+1705)
, Is the AE rotary switch (S□, -) turned on?
If it is not turned on, the AE lock switch is turned on.
Flow after step (111705) when switch is operated
Reset the flag (AE 0NF) indicating that the
(11710) and return. In step ゛(11705), the AE port/next
When the flag (SAEL) is turned on, the above flag (
Check whether step (AE 0NF) is set or not.
n1715), and if it is set, immediately
Return. If not set, step (1
1720) and step 5 to confirm that the AE lock operation is working.
Whether or not the flag (AELF) indicating
If the flag (AELF) is not sent,
If the
(N1730), the flag (AELF) is cent.
If the AE lock is activated, perform the operation to release it while the AE lock is activated.
Reset the flag (AELF) as created by L-L, Husband
Proceed to step (11735) and press the AE lock switch.
(SAIL) was operated and this flow was executed.
Set the flag (AE 0NF) indicating
Ru. In step (111700), the 10 second hold mode
If not, in step (11740)
Is E Ron Kusui, Ji (Sai:t) turned on?
If it is not turned on, the flag (AEL
F) (11755). If it is turned on
Then, set the flag (AEl, Fl) to 7l-1, (117
45) Reset the timer (T,) for maintaining the power supply.
Start T (n1750) and return. This way
If the sea urchin AE lock switch (S□,) is turned on,
I am trying to maintain the power supply. In Figure 6, when this AE lock control is finished, the
Con (lJc) twice in step (fi455)
This data communication is performed with the second card.
To explain with reference to Figure 5 (b), the microcomputer (μC)
In step (11325), the card is installed.
If it is not installed (CKbo
-0) Return without data communication. The card is
If it is connected, set the terminal (C5CD) to “1”.
(1330), data to an IC card (CD).
cn335), and the IC card is the input side.
and Thereafter, in step (11340)
The IC card installed in the camera is the mode setting card.
IC card in data setting mode
If (CKb+~CKb4=00M>, 12th
The switch that was sense-memorized in step (1900) in the figure
11344) and serial communication.
(134B) and transfer the switch information to the IC card (
CD). After that, connect the terminal (CSCD) to rl
, J level not found (1350), return. In the judgment at step (1340), the mode setting car
If it is not a program card, that is, if it is a program card (CK
bl-CKbb=01s), data necessary for exposure calculation
Exposure calculation data and flash data. and lens data, and perform serial communication.
, output these data to the IC card and connect it to the terminal (CSC
D) is set to “L” level to terminate data communication, and then
(11346-1350). Note that the data for exposure calculation is the photometric value (Bvs). (BvAv) Film sensitivity (Sv) and positive film
There is data indicating whether it is a negative film or a negative film, and the lens data and
t is focal length data, open F value (Avo) + maximum aperture
value (Avmax) and as flash data.
Data indicating flash forced flash or auto flash
Data GN (Guide) indicating whether it is not installed (including power OFF)
number), and data on whether charging is complete or not. When the above-mentioned card data communication (II) is completed in FIG. 6,
The microcomputer (μC) proceeds to step (1460) and here
Perform exposure calculation. The flow of this control is shown and explained in FIGS. 22 to 26.
First, the microcomputer (μC) performs step (12) in Figure 22.
000) to enter whether the lens is attached.
Judging from the data, if it is not installed, the actual aperture
Similar to photometry, the photometry value (BVAM) of the photometry range (LM4)
) (Instead of this, the overall averaged photometric value may be used.
), enter the film sensitivity (Sv) and exposure compensation value (△Ev).
In addition, calculate the shutter speed and return (112
005). If a lens is attached, each exposure mode
Exposure calculation according to the mode (I2010-112040
). Therefore, the exposure calculation for P mode is shown in Figures 23(a) to (C).
As shown and explained below, the microcomputer (IC) first
In step (12100) of figure (a), the backlit state is
The determination is made using the photometric value (BVAH) of the photometric range (lJI4) and the
Spot photometric value (Bvsp) obtained in step (1445)
) is determined based on whether the difference is 2Ev or more (121
00). If it is 2Ev or more, the electronic flash device is ready to emit light.
(main capacitor is fully charged)
It is determined in step (12105) that the preparation for emitting light is completed.
When the terminal (FLOK) is set to “H” level (11
2110), enables flash photography, and controls exposure value (Ev
) from the photometric value (BVAM) of the photometric range (LM4), etc.
Ev = BVAM + Avo + 5v-1 + △Ev
(12115), here, subtracting 1 is like backlighting.
This is to set the background to IE Geobar to make it look better.
. The main subject was properly exposed using the flash from the electronic flash device.
Trying to. and aperture value (AV), shutter
Subroutine (1) of program I that determines the speed (Tν)
2120) and return. This is shown in Figure 23 (b
), the shutter speed control value (Tvc
) is tuned Tv = 7 (SS = 1/125), and the aperture is
value (Av) from exposure value (Ev) by 7 (shutter speed)
This aperture value (Av) is 7 CF=11
), and if it is, the control aperture value is
Limit (Avc) to 7 and return (112215
). If the aperture value (AV) is 7 or less, the calculated aperture value (
Determine whether Av) is smaller than the open aperture value (AV0)
If the value is small, the open aperture value (Avo) is changed to the control aperture value (Avo).
Avc), and if it is not small, the calculated value (AV) is
Returns as control aperture value (^νC) (11222
0-12230). Returning to FIG. 23(a), go to step (112105).
and the electronic flash device (PL) is not ready to emit light.
If not, set the terminal (FLOK) to “L” level.121
25) In order to properly expose the main subject, set the control exposure value.
(Ev) from the spot value (Bvsp) of the photometry range, etc.
S = B shi sp + to vo +Sv + △EV Find (112
130), aperture value (8ν), shuck speed (Tν)
In the subroutine (12135) of program H that calculates
Proceed and return. This is shown in Figure 23 (C) and explained. First, step
(12250) to set the aperture value (AV) to Av=5/8Ev
-25/8, and this aperture angle (AV) is
It is necessary to determine whether the aperture value is larger than the maximum aperture value (Avmax).
12255), if it is large, the control aperture value (Avc)
As the maximum aperture (Avmax) (12260),
Proceed to step (diagonal 2280). Step (11225
5), the aperture value (^ν) is the maximum aperture value (AVm a
y), the aperture value (Δν) is equal to the open aperture value (A
Determine whether it is smaller than V0) and control if it is smaller.
Set the aperture value (8νC) to the open aperture value (static 0), if it is not small.
If so, set the calculated aperture value (AV) to the control aperture value (8νC).
and proceed to step (112280) (skip to step 12265)
Guo 2275). In step (12280), shutter speed (TV)
By subtracting the control aperture value (Ave) from the exposure value (Ev),
In the next step (+12285), this is the highest
Determine whether it is greater than the shutter speed (Tvmax)
However, if it is large, the control shutter speed (Tvc) is
(TvmaX) 112290), large
If the calculated shutter speed (T v ) is
ter speed and 1,7 (#2295), return
. Returning to Figure 23(a), go to step (+12100).
When the difference between Bv□−Bvsρ is less than 2, backlight condition occurs.
If not, proceed to step (#2145) and set the photometry range.
(1, gate,) = (+, M4) average photometric value (Bv,
+Bvy +Bv3-1-Bv, )/4 to exposure (iu
(Ev) and whether the flash device is ready to emit light.
(#2150). When the light emitting preparation is complete and the display is 7, step (12155)
) to automatically determine whether or not flash photography is being performed.
Determine whether the mode is auto mode or not.
When setting the aperture value (Av) and
Determine the shutter speed Fx (Tv) (112160) and
The shutter speed (TV) is the camera shake warning speed (T C6
, 1/60) (#2165
). When the speed is less than the camera shake warning speed, the speed is set to low.
Proceed to step (#2170) to perform flash photography.
Also, in step (#2155), do not switch to auto mode.
Dojite step (12170) that forces flashing even when it is not available
Proceed to. Then, in Program I, set the aperture for flash photography (
Determine J (AV) and shutter speed (TV) and terminal (F
Co k ) to r HJ level 112175)
, enables flash photography. However, in step (i2150), the light emission
If you are not fully prepared, use the flash for shooting with constant light.
Go to step (12180) and aperture with program H.
Determine the value (AV) and shutter speed (TV), and connect the terminal (F
LOk) to the “I,” level (#2185), and
Turn. Step (12165) Even if you leave L,
When the shutter speed (Tv) is 6 or higher, the shutter speed
Proceed to step (a2185) and return. Next, the aperture value (AV) and shutter speed in A mode
Figure 24 shows the flow yard for determining the degree (TV).
(2. To explain, first, the electronic flash device is ready to emit light.
If the light emission is ready, the control system is activated.
Shutter speed (Tvc) is set to 7 (1/125),
Set the terminals (Fl, Ok) to [H] 1 noher and control wholesale aperture.
Return value (Avc) as set aperture (l¥(AV))
(112300-112310 and l12345)
, if the flash is not ready, the exposure will be calculated from the average metering value.
Find the exposure value (Ev) and set the aperture value from this exposure value (Ev).
Sha the one who annihilated the. Set to tar speed (TV) (112315.12320)
, and in the next step (12325)
Maximum shutter speed (TV) that can be controlled by
J7, large
control the maximum shutter speed (Tvmax) if
Shank velocity (Tvc), if not large,
/ji calculation shutter speed (TV) control shank speed
(Tvc) as steps (wings 2340>
Proceed to (12325=l12335), step (+1
2340), set the terminal (FLOK) to “+-” level.
, In the next step (#2345), set aperture value (8ν)
is set to be the control aperture value (ΔνC). Next, the control in S mode is shown and explained in FIG.
First, in step (112400), the exposure value (E
v) is calculated from the average photometric value, etc., and the light emission semi-6Q is completed.
It is determined in step (12405) whether or not the light emission is ready.
2, set the terminal (FLOk) to rH, level.
Suru (112410). Next, in step (I!2415) the shutter speed (T
Determine whether V) is 7 or less, and if it is 7 or less, set
Control the constant shutter speed (TV)
vc) and L (#2420), if it exceeds 7, synchronize speed
7 as the control shutter speed (Tvc), respectively.
Proceed to step (112430). In step (112430), the aperture value (Av) is determined.
Control shutter speed (Tvc) from exposure (i (Ev))
This aperture value (AV) is calculated by subtracting the aperture value (AV).
vo) Determine whether it is smaller than m2435), small
When the aperture value (Avc) is small, the control aperture value (Avc) is changed to the open aperture value (Av
Return as o) (112440). on the other hand,
Aperture value (8v) is not smaller than open aperture value (Avo)
If so, is it larger than the maximum aperture value (Avmax)?
12445), and if it is large, the maximum aperture value
(Avmax) to control aperture value (AVC) (1124
50) If it is not large, control the calculated aperture value (Av)
As aperture value (Avc) (12455), return
Ru. In step (12405), the light emitting preparation is completed.
If not, use the control system to set the shutter speed (Tv).
shutter speed (Tvc) +12460), terminal
(FLOk) as rl, J level (112465)
, proceed to step (I2430) and proceed to the subsequent flow.
Execute. Next, when it is in M mode (see Figure 26), it is ready to emit light.
It is determined in step (112500) whether or not the
, if it is not completed, set the terminal (LFOk) to “L” level.
When the bell is completed, set the terminal (FLOk) to “H”
level and proceed to step (m2515) respectively.
, the preset aperture value (^ν) is controlled by the aperture value (AVC).
In addition, in the next step (12520), the shutter speed
degree (Tv) as control shutter speed (Tvc)
turn on. Returning to Figure 6, after completing the exposure calculation (11460), the
Mera's microcontroller (μC) and IC card (CD)
The second data communication is performed (I1465). Figure 5 (C)
To explain this control flowchart, we will first explain the end point.
Set the child (CSCD) to rl (J level) and set the IC card (
CD) and performs serial communication (1360) with the IC card.
Notify that the IC card is on the output side (1136
0). At this point, wait for some time (I1365) and perform serial communication.
Please input data from IC card (CD) 1137
0), and when this data communication is completed, the terminal (CSCD) is
Return to "L" level. In addition, in this flow, the data sent from the IC card (CD)
The data received includes the mode setting of the IC card.
There are differences between cards and program cards.
First, if it is a mode setting card, the mode setting card
data (CKb, ~CKbzz in Table 7) and display.
There is display control data (CKb?) that determines whether
If it is a program card, ■control shutter
-Speed (C-Tvc), ■Control aperture value (c-AVC)
l■ Flash emission/non-existence, ■Flash dimming emission at full emission (
(Full 1 emission) / not, ■Card control
There is data on whether to do it or not. When this card data communication (I[l) is completed in Fig. 6,
Microcomputer (μC) controls step (1468) card
Execute the flow. This flow is based on the data entered.
Then, the IC card (in this case, the program card) is
to determine whether or not to control the camera, and where to do so.
This shows how the camera works when
To explain it as shown in Figure 27, the microcomputer (μC) first
Step (12602)
) and the card function is selected (CDFNF
= 1), proceed to step (12605);
If the card function is not selected (CDFNF =
0) Sometimes the function bit in step (It267?)
(Fb,) and (Fb, .) are respectively set to O, and further
(112680) to change dimming level ff1 (F△Ev)
Reset and return. Card feature selected
If the program card is installed, then check whether the program card is installed or not.
Determine if the program card is installed (retail)
(Jb, ~CKb, = OIN) is the step (126
In 10), check whether the camera is controlled by an IC card or not.
Determined by data input from IC card (CD)
. Then, in step (12605) the program card
(Ct+b, -Ckb, ≠OIw) or
In step (I12610), the camera is installed using an IC card.
If not controlled (Ckbzi=O), step (+12
677) and then proceeds to step (I1268o). Lucerano III by IC card? Wholesale (Ckbri)
= 1), the control aperture (fi(Avc)
, Control shutter speed (Tvc), Full 1 shot
10 cards each for presence/absence of light, presence/absence of flash emission, etc.
(112615~+
12645), then the flash light emission is determined by the input data.
112650), flash mode
Set the terminal (FLOK) to rl-J level when not in mode.
(112685), proceed to step (2680). Terminal (F1., OK) when in flash mode.
Set to rH, level 112655), Ful1 emission
Detect whether the mode is (+12660), and
, when in Ful1 light emission mode, step (+126
60) to set the terminal (Full) to rH and return.
When the terminal (Full
) to "L" level 112670), dimming level
Cent the value change amount (C-FΔEν) (+12675
), return. In Figure 6, a camera using an IC card as described above is installed.
Finish the control judgment and control routine (+1468)
Then, we move on to display control (+1470), which is the 28th
It is shown and explained in the figure. First, the microcomputer (μC) checks whether the card function is working or not.
Whether the flag (CDFNF) indicating whether
It is determined in step (12700) whether the
If so, proceed to the next step (12710) ~ (#2
720) has passed once (CDIF)
Use step ($12710) to determine if is set.
to be determined. Here, the flag (CDIF) is set.
If not, set this in step (112715).
to change the card function from not working to working state.
Display of functions added by the card when changed
Step flag (DISPIF) to perform for a certain period of time
(n2720) and step (12725)
Proceed to. When the card function is not working (CDFNF
= O) has steps (nail 2710) to (12720
) is passed once.
05) and go to step (12725).
If the flag (CDIF) is set, do nothing.
From step (+12710) to step (n272
Proceed to 5). At step (+12725), the above flag (1) IS
PIF) is set and determines whether it is set.
The card type is a program card.
It is determined in step (12727) whether or not the program
If the card is a flash card, the data on the shutter speed display
rPRo as data, does not indicate that the card is working.
Step (1127) the data showing the display of rcARDJ
28). The display in this case is shown in Figure 34 (b
). If it is not a program card, i.e. a mode setting card
, or if the card is not loaded, step (1272
9) to select the functions of the card set in the camera.
Reading from FROM, as shown in No. 34 [m (a)
Create display data. In addition, display data and display
The content changes depending on the settings. The flag (DISPIF) is set in step (#2725).
If not, the next step (12730)
Determine whether or not to perform display control using the card, and
When performing display control using CD (CKbt =
1) The mode setting data entered from the IC card is
The corresponding display data is created (112735). Card display from IC card in step (W2730)
When there is no control signal (CKbt = O), step (
#2736) and write flag to E2PROM
(WRTF) is set. book
When the write flag (WRTF) is set, the
When the data setting mode using the card is completed, the mode
Proceed to the code setting subroutine (112737) and display
Create display data (n) and proceed to step (02745)
move on. The above mode setting subroutine is shown and explained in Figure 30.
Then, here are all the modes currently set on the camera.
is in the newly set mode.
If it is not available, move to another configured mode.
ing. For example, if exposure mode A is currently selected.
However, depending on the IC card, you can select the exposure mode from A mode.
is removed, the A mode display and
It would be wrong to do so, so we prevent this. Now, in the flow of Figure 30, the microcomputer (μC)
First, the flag that is reset when there is a mode that can be changed.
Lug (CIIGF) L (113200),
Check whether the settable exposure mode has been changed in E”FROM.
Data (MSbb-MSba) and IC card (CD)
The data input from (CKb+z~CKb+a)
Compare and judge +13203), if different (
(i.e., if there is a change), the exposure mode is forced to P mode.
In order to set the data (Fb,, Fb,) to (0,0
)! Koshiku +13205), Stenbu (13210
). Next, in step (13210), check if there is H/S mode.
If yes ((Jbs=1), the above flag is
(CHGF) and change data (CDbo
-CDbt) as H/S change (0,0,0)
Proceed to (113230) (13220, 13225)
. If there is no H/S mode (cKbs=o), the data (
Fb&, Fbt) without H/S of (0,0) (
13215), proceed to step (113230). In step (13230), it is determined whether there is a 10/- mode or not.
If it grows (CKb, = 1), flag (C
HGF) is set or not in step (113).
245), and if it is set, set the flag.
Reset (m3250) and step (1132)
55) to change the change data (CDb6 to CDb+) to 10/~
Further (001), the process proceeds to step (m13260). The flag (CHGF) is set in step (113245).
If not, step (m3250),
(m3255) and directly step (
13260). In step (13230), there is no ten/- mode
If (CKb?=O), the functional data (
Fba, pbs) is (0,0), and the corrected exposure amount △E
Proceed to step (13260) with v=0 (1323
5,13240). In step (113260), is there an S/C mode?
If yes (CKbl.=1), set a flag.
Step (1) determines whether (CHGF) is set or not.
3270), and if it is set, this
13275), and also as an S/C change.
In step (m3280), change data (CDb, ~CD
bz) as (0, 1, 0) and the next step (1132
Proceed to step 85). When the flag (CHGF) is not set, the
Skip steps (113275) and (13280)
and proceed directly to step (13285). Step (1
13260) and there is no S/C mode (CKb,
. -〇), step (1326) is set to single-shot mode.
Set the function data (Fb) to (0) in 5) and proceed to step
Proceed to (13285), in step (113285)
, determines whether S/A mode exists, and if so (CK
bl + = 1), the flag is set in step (13295).
Determine whether lag (CHGF) is set,
If set, reset the flag (CHGF)
(13300) and then the next step (m3305
) as S/A change (CDbo~CDbt
) as (0,1°1) and return. next step
The flag (CHGF) is set in (13295).
If not, there is no changeable mode 113310
), change data (CDba to CDbz) to (1, 0,
0). Also, if there is no S/A mode in step (13285),
(CKb, , =0), step (13290)
Function data for multi-point ranging mode (A mode)
(Returns with Fb return set to (0). In Figure 28, the above mode setting (m2737) is
data creation II (12742) is performed.
It will be done. Data creation■ is a normal display that does not depend on the card [for example,
2 (U)] to create display data for
If there is, and the card function is not working, please do as shown in Figure 29.
It will look like this with the characters <CARD deleted. Each step (
12728) , (12779) , (12735
) and (112742)
After the configuration is completed, proceed to step (12745) and display
In order to communicate data with the control circuit, a terminal (CSDISP
) to r)(J level, then step (11275
0) to perform serial communication (camera output side) and terminate the communication.
After completion, set the terminal (C5DISP) to “L” level (1
2755). The next time you activate the card function, it will be displayed for a certain period of time.
Checks whether the flag (DISPIF) is set or not.
It is determined by the step (+12760) and if it is set.
Wait 0.5 seconds (m2765) for this time.
Created with steps (12728) and (112729)
The displayed data will be displayed. Next, in step (12770), the flag (DISPIF) is set.
Reset and proceed to step (112775). In the step (12760), the flag (DISPIF) is set.
If not, step (12765)
and (12770) and skip step (1277
Proceed to 5). At step (m2775), the IC card
In order to temporarily release the display control, the data (CKb?) is set to O.
Make it. Next, the control shutter speed (Tvc) is less than 6 (176
0) in step (12780),
If it is less than 6, the mode for buzzer warning is selected.
(112785). When selected
(MSb,=MSb+*-Ol+.2□, 411.
6H, 8H, An. C,, EX,) is connected to the terminal (
ORZ) should output a pulse of a specified frequency for a certain period of time.
+12790), proceed to step (#2792). Control shutter speed (Tvc) is 6 or more, or the buzzer
When the mode does not issue a warning (MSby"'-M
Sbtz -1>1.311.511.711.911
．． +311. Buzzer warning for D>l, FHo)
Without doing so, proceed to step (12792). In step (112792), the input mode settings are
MSb of E'PI'IOM's camera function indicated by data
o=Flag indicating whether to write to MSbi2 (WRT
F) is determined, and if it is set, it is set as E"Pl?
Write to OM (#2794), and then proceed to the next step.
This flag (WRTF) is reset with step (12796).
Toshite Rita 12/do. Flash at step (12792)
If WRTF is not set, return immediately.
turn on. In FIG. 667, J-description (7) display control (1470
), the microcontroller (μC) executes step (1471
), the IC card is inserted and the data setting mode is
- The flag (SETF) indicating that the code is set is
Determine whether it is set to Sera 1, and if it is set
Go to step (1520) and all interrupts are enabled.
Return as. The above flag is not set to 7 I-.
[”, skip to step (1475) and release
Determine whether or not the switch (S2) is turned on.
When it is not turned on (IPy = 'HJ), it is reset.
Turn. When turned on, cipt=rl,'')
Determine whether or not it is one shoto l-A F (#480
), here, in the case of one-shot AF, indicates focus.
° Check whether the flag (AFEF) is set or not.
Check if it is set (+1485).
If so, return via the step (1520).
. When the flag (AFEF) is set, or
When using continuous AF instead of one-shot AF
, step (#490) disables interrupts to this file 1-.
After stopping and performing exposure control in the next step (1495)
(EiR) Step (1500) takes one frame of film.
Perform winding (this will also be explained later) and press the release switch (S
2) is ON or not in step (1505), and
In the case of N (IF', -・rL"), continuous shooting mode -F
Determine whether or not in step (+1510) 1.2, continuous shooting
- mode (Fb, = 1), step (15
15) Enable all interrupts and proceed to the (SO) routine.
. Step when not in snapshot mode (Fb3 = O)
Return to (1505) and release switch (S, ) is OFF.
Wait until it is turned off, and when it is turned off, step (1520
) to enable all interrupts and return with 2. Next, the exposure control glue bluech in the step (1495) above is
The system is shown in FIG. 31 and will be explained. First step (1280
0), input 1 from the flash device (ST). Tade
- determine whether charging is completed based on the data7;
If charging is complete, go to step (#2805)
Set the terminal (C3ST) to rHJ l novel between (11),
Indicates exposure mode. And the amount of light control and L2
, film sensitivity (Sν), n-output correction amount (△Eν), ■(
'', calculate the flash g correction 1t (F△Eν) from the card.
output and send this to the dimming circuit (STC) as analog data and 1
．． 2 to 1]/A conversion and output (12810). In the next step (12815), i! ill in shibori
Aperture control is performed based on the mirror aperture (8νC).
After controlling the shutter (112820), the control shutter
-Control the shutter speed based on the speed (D)
(+12825), and further set the Ful1 light emission signal terminal to “1”.
．． ” level (#2830) and return. Here, the operation of the interface circuit when the flash is emitted is explained in the ninth section.
To explain based on Figure 0)), during flash photography, the terminal
(FLOK) is at “H” level, and the first curtain of the shutter
When the travel is completed, the X contact turns ON and the AND circuit (
The light emission start signal is sent from ANDz+) to the electronic flash device (ST).
The electronic flash device (ST) outputs this to a person or node.
El,, it has to be 6Ful1 light emitting thousand which starts to emit light.
Then, input “ to the AND circuit via in-hark (1 to 1□).
I)" level is being output, and the dimming circuit (STC)
When a pulse signal indicating the completion of dimming is input, the AND rotation starts.
The circuit (ANDI!2) passes this through the OR circuit (OR21).
7 and output to the flash device. With electronic flash bag W (ST)
Enter this to stop the flash light emission. Ful1 light emission
1 when in mode! , r for the AND circuit (ANDzz)
1. ,, J l novel is input, AND circuit (A
NDzz) is inactive and the dimming signal cannot pass through.
Electronic flash devices (ST) are prohibited from using flashlights.
No signal indicating stop is output. FIGS. 32(a) and (b) show step (1) in FIG.
The control flow for winding one frame of film shown in 500)
- Shows the chart. To explain this,!
32 In figure (a), the microcomputer (μC) is a motor.
Outputs the hoisting signal to the motor control circuit (MD) and starts the timer.
Reset start (T,) (112850.1
2855). This timer allows the film to wind up to the last frame and
This is a timer to detect when the film is stuck.
. The microcomputer (μC) at step (12860)
The switch (SWD) indicating that 1 frame has been wound
ONL, determine whether it is ON or not, and if it is not ON, this
Determine whether 2 seconds have passed in the state at step (12865)
If 2 seconds have passed, the motor will be stopped.
(12870) If the film is tight, this
Control the film tension (I2875),
Return. The 32nd installment of the above-mentioned subroutine
As shown and explained below, auto-return (after
, automatically rewind the film) is selected.
is determined in step (12920), and if it is selected.
ki(MSb*~?ISb. 2=0.~311.8.I""'Bo, where is 1
Hexadecimal) is the motor control circuit that sends the motor reversal signal.
(MD), and the film detection switch (SFLH)
Wait for it to turn on (#2930.+12935),
Next time the switch (SFLH) is turned on, the film
Determine whether or not to involve all the characters into the Patrone room, and
(MSb*~MSb+i of E”PROM = 2N
, 311.68.711. A□, B8゜EH, FM)
If so, wait 1 second (12945) and stop the motor.
After performing control (12955), return. If it is not a case of involving (E"FROM's? ISb, ~
MSblz=Ox, Ill, 48.511. al
l, 98.0H, Do), wait 0.2 seconds, then turn the motor on.
- Stop and return (I2950). If there is no auto return in the above step (12920)
(MSb, ~MSb+z = 411~7M, C
M, FM), proceed to step (12925) and rewind.
Wait until the switch (s*W) is turned on, and then
If so, proceed to step (112930). Returning to FIG. 32(a), in step (12860)
Then, the 1-frame winding completion switch (She) is turned on.
Then, in step (112880), control the motor stop.
After that, in the next step (12885), change the number of films.
Determine whether or not the counter is a forward formula, and use the forward formula to
If there is (MSb, ~MSb+t = OH~7H)
, Step (112890) indicates the number of film shots taken.
Increment the count number (N1) of the counter by 1.
If it is a backward calculation formula (MSb9 to MSb+z
) is the count number (Nl) that indicates the number of remaining film sheets.
Decrement by 1, each step ($12
900). In step (112900), this number of films (N
, ) to MSb+3 to MSb+e of E”PROM
nothing. Next, press the back cover close detection switch (S, lc) or the rewind
When the switch (S+ni) is operated, the terminal (IN
A pulse signal is input to Tt), and the microcomputer (μC)
The interrupt (INT,) shown in Figure 3 is executed in 7 lines. of the same figure
In the flow, the microcontroller (μC) first
113000), and the step after the
Turn on the rewind switch (Srw) using the button (13005).
Detect whether or not the If it is turned on,
In order to perform the rewinding operation, the rewinding operation shown in FIG.
] Execute the routine, enable interrupts, and return.
(+13010). Rewind switch (S+tw) is ON
If not, the back cover close switch (S, IC) is
Assuming that it is turned on, proceed to step (13015) and set the
Determine whether the lum exists. If there is no film
Therefore, the film detection switch (SFL) is turned off.
In this case, proceed to step (13) without initial loading.
100), whereas if there is a film
(In other words, when SFLM is ON), the terminal (CSDX)
to rH level and film sensitivity reading circuit (DX)
Film sensitivity data (Sν) and
After inputting the number of film shots (N) and completing the communication,
Set the terminal (C5DX) to “L” level (#3020~
13030). And set the number (Nl) to -2.
113035), then connect the terminal (CSDISP) to rH.
, level, and perform serial communication with the display control circuit (1
3045), except for the data indicating the number of films (N1)
After outputting data that is not displayed and completing serial communication, the terminal
Set the child (C5DISP) to “L” level (I1305).
0), Ko(7) For the number of films (Nl)
The display is displayed using two 7 segments. next
The microcomputer (μC) sends a signal indicating motor winding.
Control circuit output L (113055), 1 frame winding
(13060)), then press the 1-frame winding switch.
When the switch (SWO) is turned on, the number of films (N, )
Add 1, judge whether it becomes 1, and check if it becomes 1.
If not, return to step (113040) 6 l
If so, proceed to step (13075) and check the motor
Stop the camera and check whether the film counter is a forward counting type.
It is determined in step (113080) whether or not the
, in step (113085), set 1 to (N,), then
If it is not a formula, read in step (13090)
Let the number of film shots (N) be (N, ), and step (1
3095). And in step (13095)
is the above (N,) and the film sensitivity at E”FROM.
Write to a specified address and enable all interrupts after writing is completed.
(113100) and return. In the above, the microcomputer (IC) on the camera side of this embodiment
Explain the operation using various flowcharts 1, etc.
However, the next step is to control the IC card installed in this camera.
This will be explained using a flowchart. Furthermore, the mode
The settings card and program card are explained separately.
I decided to do it. My IC card (CD) has a built-in H”Pl?OM.
A controller (μC2) is incorporated. First, let's start with the mode setting card.
When D) is attached to the camera, power is supplied and
As mentioned above, interrupt the camera's microcontroller (μC)
is applied, the clock (φ) is sent, and the IC card is
The microcomputer (μC7) on the side becomes ready to drive. On the IC card side, the terminal (RE) is connected by attaching it to the camera.
A signal that changes from “I5” to rH, level is input to the
The icon (μC1) executes the flow shown in Figure 35(a).
do. In the same figure, the microcontroller (μC2) first
Resetting the programming output port (#CD5) and RAM bit
Reset (CCKbo=CCKbz) to (0,0,0)
E”PIlOM(CMSb.~
CMSb++) data in the RAM bits shown in Table 9.
(CCKba~CCKb+=)
Move to the corresponding bit (JICDIO), wait for interrupt
Becomes (llcIII5). The contents of this E"FROM data include the camera's E"FROM data.
”FROM data (MSbo~MSb:+, MS
bs to MSb, data similar to 2) can be written.
ing. A signal from the camera indicating a data communication request (C3BCK)
is sent, the IC card's microcontroller (IC is an interrupt
(INT), which is shown in Figure 35 et al.
To explain, the microcomputer (μCZ) performs steps (ICD5
0) to perform serial communication with the camera.
The clock (SCK) for data communication sent from
Enter the data from the camera based on the data
Determine whether it is data communication (1, II, III) (
llcD55). If it is data communication I, first
What type of code (mode setting or program
), set the data that indicates to the camera whether the
mode setting card), the clock sent from the camera.
Outputs data based on clock (SCK) (WCD60
), Wait for interrupt (IcI)63), Re-communication
If is ■, step from step (feather CD70)
(IIC+)75) and the data sent from the camera.
data (in this case, key data) to the clock (SCK)
Input synchronously. Based on this input data,
Execute the data set routine (lcD75) ”),
Waiting for interrupt (#CD routine of this data center)
The card data setting is shown in Figure 35 (C) and explained.
constant switch (Scos is turned on or not)
(IcDloo), and whether the switch is ON or
steps according to OFF (ICD110uCD105
), each control (5cDs 0N) (5CDS
OFF: Step after the flow of l (lcD115)
Proceed to. The flow of this control is shown in Figure 35(d) and (e
), but this control is shown in Figs. 17 and 18 [
Flow of 5cDs ON), (5cns OFF)
Compared to step (111500) and step ($11
550), there is no mode setting card determination step (
(This is not required on the card side), everything else is the same.
Therefore, the explanation will be omitted. In addition, the flag with C at the beginning is the camera side flag.
This function is used to differentiate the camera from the camera without C.
The function is the same as that of the flag on the left side. Returning to FIG. 35(C), in step (ICD115)
, whether or not the set flag (CSETF) is set.
If it is not set, (5cns
After going through the ONI flow once, (5cos OFF)
Flag that is set when not passing through the flow (
CCDSF) is set or not in step (I
ICD120). In this embodiment, the card data setting switch (S.,) is
When it is OFF, it enters the change mode, and the step
The flag (C5ETF) is set in (lcD115).
If not, the settings cannot be changed yet, but the
It means something has changed. When the flag (CCDSF) is set, the table
Please set the display control flag (DISPCF)1lcD1
25), if the flag (CCDSF) is not set
If so, reset (llcD130) and return. This display control flag (DISPCF) can be set or reset.
Set the display on the Kashira side to the display in data setting mode.
[Step (1127 in FIG. 28)
30) ), in step (lcD115), flag (
C5ETF) is set, the switch (
Sst), (Srus), (SEXP), (Sat
L), (Sup), (Sdn)
Corresponding flow C3st ON), (SFLINON)
, (Stxp ON), (SAEL ON), (
Sup ON), (Sdn ON) and step
Proceed to step (lcD125) (lcD135-IIcDI
90). The following explains the flow according to the operation of these switches.
Ru. First, use the change data selection switch (Sst) to
At that time, the selection of the mode is as shown in Fig. 35(f).
according to the RAM bits (CCkb0 to CCkbz) of
advance to the next position, at the same time the above bit (C
Change Ckb, ~CCkb and return (ICD
300). Change data enable/disable switch (SFL+N)
The selection of mode changeable is shown in Figure 35 ((2)).
As shown, the model changes depending on the selected position in change mode.
If the code is set (changeable, bit = 1)
, mode reset (no change, bit-0), set
If not, set each and return. signal
In other words, set (CCkb, ~CCkb6) (=
1) means to reset (=0). In step (#CD410), it is in S/A mode.
Needless to say, there are. Next, press the exposure mode combination selection switch (SEXF).
The selection of selectable exposure modes is shown in Figure 35 (h).
This switch (SEXP) is operated as shown
bits (CCkbt~CCk
b. Change the state of ). AE lock by operating the AE lock switch (SAEL)
To select the dock mode, operate as shown in Figure 35(i).
Each time the switch (SAit) is ON, the period A
E-lock or hold the camera power for 10 seconds.
mode) so that the AE lock alternates between
Change the cut (CCkb,,). Up switch (SLIP), down switch (Sdn)
) selection of the modes shown in Table 2 by each operation
is the bit (
CCkbl. Up from the current position of ~CCkt+++)
When the switch (Sup) is operated, the count up and down will start.
Countdown when down switch (Sdn) is operated
Accordingly, the bit (CCkb
+o~CCkb+z). In FIG. 35(C), by step (ICDloo),
The card data setting switch (Scns) is turned on,
Step by step (ICDllo) → (llcD1
15) → (llcD120) → (ItCD125)
When the card display control signal from the mode setting card (
On the card side, this signal is output when DISPCF is 1.
28), the camera follows the steps in Figure 28.
Proceed from (112730) to ($12735) and card
The camera can be set by
Display of the functions it has [for example, the table shown in Figure 38(b)]
The image shown in FIG. Change data selection switch (Once the SS button is pressed, the change data selection switch
- Sol (△) is at the H/S position (however, if it is currently set
(There is no H/S display) [Figure 38 (
C)), in this state, press the change data enable/disable switch.
When SFLIN is pressed - times, ! 1/S function
As shown in the 38th [3N (d), HI
3 is displayed. Next, a similar operation is performed, namely the change data selection switch (SS
E), changed data valid/invalid 9J changeover switch (SFL
When IN ) is pressed once in sequence, this time
By deleting the +/- function, the result is as shown in Figure 38 (e).
will be displayed. Next, the exposure mode combination selection switch (SEXF) -
When pressed again, PAMS will change to PAMS as shown in Figure 38(f).
aAE lock switch (S□L) that changes to display M
When is pressed once, PUSHSP is displayed as shown in Fig. 38.
(The display changes to "Hold" like a barrel. Here, when the up switch (Suρ) is pressed - times,
2 changes to 1 as shown in FIG. 38 (5). Next, set the card data setting switch (Scns) to
When turned on and turned off, the card display control signal
The camera no longer outputs from CO2730) to (
++2736), and at this time, write to E”PROM.
The flag (Wf?TF) indicating that the
Immediately j'), the above switch (Scns) is turned on at − degrees.
OFF (However, before turning on, data settings by card are required.
mode)], which allows this
Display after 1j- (All operations for changing the code mode have been performed.
) From the display in FIG. 38 00 to the display in FIG. 38 (i)
Move to display. Returning to Figure 35(b),
When it is determined that the data communication is (III),
In step (IICD85), serial communication (in this case
IC card function data (C
Ckb, ~CCkTo4) and CDl5PCF) signals
As soon as it is given to the camera side, it is written to the E”PROM.
Checks whether the flag (CWRTF) is set or not.
If it is not set, check with
If so, proceed to step (IICD63) and wait for an interrupt.
If set, the function data (CCkb, ~C
Ckb14) to 22PIIOH's (CMSbo~CMS
b, l) according to the data content.
Write (lcD92), write flag to E2PROM
Reset (CWRTF) (mouth CD95),
The process advances to the step (IICD63) and waits for an interrupt. In the step (#CD80), data communication (I
II) If not, then assume it is a sleeve signal) IA
It becomes LT state. Next, the case of a program card will be explained. In this example, the program card is playing sports.
This is an effective sports program when you want to take pictures of scenes that
ing. Now, when the IC card is inserted into the camera, the card side
r L to the total SET terminal of the microcomputer (7/C1). A signal that changes from level to rHJl/bell is input j7,
The IC card microcontroller (μC7) is shown in Figure 36(a).
Execute the [Reset] flow, and in step (01)
Reset the flag and port and wait for an interrupt (Ω2
), an interrupt occurs when the C3BCK signal is input from the camera.
The flow of [INT) shown in Figure 36 C1))
Execute. Is the IC card microcontroller (μC2) a camera?
Data exchange based on the clock (SCK) sent from
have faith (50). What kind of exchange is the data at this time?
Data that the camera uses to inform the card side whether the
The microcomputer (μCt) of the IC card is
The content of the communication is determined by inputting the data (Q51). de
If data communication is 1, data indicating the card type.
(In this case, it must be a program card) and AF.
The mode is continuous, and the metering zone is multi-point.
Serially cross each zone to the camera side.
Output at (Q52), proceed to step (056) and interrupt
I'll wait for you. Here, this program car 1' is used for sports scenes.
Since this is based on the assumption that
Always a bottle!・Continuous AF
For the same reason, the photometry zone is also used for multi-point, measurement with a wide photometry range.
The focus zone does not focus on moving subjects, so it
It is preferable to focus on the main subject, but the photographer may choose to focus on the main subject.
It can be switched in case you want to match the sharpness and -1.
do. Next, we will perform the specific steps 1:+-char 1 for exposure calculation.
7. Before explaining the example. Outline the controls for this card
I'll keep it. ◇Cards for outdoor sports and sports days◇ [Contents] Photograph moving subjects in a relatively bright place at a high height to avoid camera shake.
You can take pictures with a fast shutter speed. [Control] Control details for outdoor sports and sports day cards are shown in Figure 37.
This control is performed as shown in the program diagram below.
. (a) The aperture value Av of the lens is calculated as follows. When Ev<21, Av-(3/4) Ev 23/
When 4Ev≧21, 8v= (1/2) ・Ev 1
/2, that is, when Ev<21, the shutter speed (TV)
Open up the aperture to make it faster. Therefore, Av=
(3/4) Calculate 4v 23/4. When Ev≧21, the shunter speed (TV) is already sufficient
Since it is considered to be fast, (Av) and (Tv) are
In order to change both smoothly, Aν = (1/2
)・Calculate Ev-1/2. Next, the open aperture values Avo and Av are compared. The calculated value is
If it is smaller than Avo, set the aperture value to that value.
Since it does not come, I will correct it to Avo. Next, the shutter speed (TV) is determined using the following formula. When Av≧AvoO, Tv=Ev-Av When Av<^vo, Tv=Ev-Av. (b) If the film is negative, the shutter speed
Compensation of shutter speed (TV) to increase the speed (Tv)
Do the right thing. Negative film has a wide latitude, so take advantage of it.
Underexposure by about IEv and use a high shutter speed.
hold. Reversal film (positive) has narrow latitude.
And no correction is made. (c) Other controls are applicable when a lens with a focal length of 7001111 or more is installed.
Do this if you are wearing one. The reason is that sports photography
Since the distance to the subject is considered to be relatively large, a telephoto lens is not recommended.
If you do so, you may not be able to capture the subject sufficiently, and
If you do not use a long lens, the image magnification of the subject will be small.
move the lens and shake your hand to follow the subject.
Since the probability of this occurring is low, no control is performed. With this control, the flash is forced off, and the flash
does not fire automatically. The reason is that this program model
The mode is aimed at shooting in relatively bright places.
I think the distance to the subject is relatively large, so I'm using flash.
Even if the switch is activated, it does not seem to have much effect.
It is from. Also, with this control, the flash switch is forced ON.
If it is, no control is performed. The reason is this
For the reason mentioned above, the flash will not fire during control.
, the flash was emitted when the control was performed when it was forced on.
This is because it would go against the photographer's will. Next, the flowchart of the exposure calculation of the program card is shown below.
This is shown in FIG. 36(C) and will be explained. In the same figure,
The program card's microcomputer first starts with step ■.
The presence or absence of a lens is determined based on the data input. here
If the lens is not attached to the camera body,
, lens data such as open aperture value (Avo) etc. are stored on an IC card.
I don't come to Therefore, exposure calculation cannot be performed, so
Proceed to step 0 and leave exposure control to the camera body. If the lens is attached, proceed to step ■ and input.
Check the focal length of the lens from the data. focal length is
For lenses less than 70+am, the card cannot be used for the reasons mentioned above.
is not controlled, so in this case as well, step @Hejan
to let the camera body control the exposure. focal length is 70
If it is more than mm, then the data entered in step ■
Check the status of the forced flash switch. flash
If the forced flash switch of the flash is ON, the above-mentioned principle
Because the card does not perform any control, the step [phase]
Janhusl. On the other hand, if the switch is OFF, proceed to the next step ■
Spot brightness (Bvs) and fill of data input in
Calculate the exposure value (Ev) by the sum of the system sensitivity (Sν)
. Then, the content of the control is determined by the value of the exposure value (Ev).
change. For the reason mentioned above, when Ev<21, Av=
(3/4) ・Step [phase
] to find (Av). When Ev≧21, Av= (1
/2)・Ev-1/2 formula, use step ■ to calculate (Av)
demand. (Av) calculated in step ■ and the minimum aperture value of the lens (
Avmax) is compared in the next step (2). and
, when static ≧ νwax, narrow down the I nons further.
Since it is not possible to adjust the aperture for body control in step
Let νC be Avmax. On the other hand, when 8ν<Avmax, 8ν is
Let it be C-Aν. In this way, the aperture value for body control
After calculating Ave, the shutter speed (
Tv) is calculated based on Tv=Ev-Avc. In the next step ■, this shutter speed (TV)
Comparison between and the camera's maximum shutter speed (Tvmax)
I do. Here, when Tv≧TvmaxO, step @
Go to and set the shutter speed (Tvc) for body control (
Tvmax), and when Tv<TvmaxO,
At step ■, set Tvc = TV. ” If Ev〈21 in Step 2 ■, Stella゛■
After calculating (Av) using the formula shown in , proceed to step [phase].
nothing. In step ■, (Av) calculated in step 0 and the release
A comparison will be made with the aperture Avo. Here, when 8ν〉8ν0
The above step is used to compare (Ih) and (Avmax).
Go to Step ■<, When Av≦8ν, change the aperture value of the lens.
Since it cannot be opened any further, proceed to step ■ and open the body.
The aperture value for aperture control (Avc) is (Avo). and
, Furthermore, in step ■, from the T sea E sea AvcO formula
Calculate the ter velocity (TV). For the reasons mentioned above, if the film is a negative film,
, the shutter speed (TV) must be corrected.
Therefore, the type of film is determined in step [Phase]. As a result, in the case of reversal (positive) film, the shutter
To prevent the tar speed (Tv) from becoming extremely slow
Proceed to step O. On the other hand, in the case of negative film, proceed to step 0 and
It is determined whether the cutter speed (TV) is smaller than 9 or not. So
When TV≧9, step [phase] is used for body control.
Let the shutter speed (Tvc) be (TV). When the TV is <9, proceed to step Φ and release the shutter again.
It is determined whether the speed (TV) is 8 or higher. Here, when Tv≧8, set Tvc=9 and step
'[Phase]), When TV is 8, press the step @ to
A correction of Tv+1 is performed and the process goes to the next step O. Ste
The shutter speed (Tv) becomes extremely slow at φΦ.
In order to prevent
Make a comparison to limit the Here, when TV<5, set Tvc=-5 and step
@), when Tv≧5, Tvc = Tv (S
Tep@). For the reason mentioned above, flash control is not performed, so the step
In step @, a bit is set to turn off the flash. After that, proceed to step O and control the camera using the program.
Return using the value calculated by the game card. After completing the flow of these exposure calculations, the process shown in Fig. 36 [Exist])
Return to the flow and wait for an interrupt. At this point, there is an interrupt from the camera side, and at this time data exchange occurs.
If it is true, the calculated aperture value (CAVC) l Shut
Camera with CTve data and card
Whether to control or not, non-compulsory Ful1 light emission (Fb.=0), prohibition of @light emission (Fb+a=0), CM light supplement
Create data regarding positive jJ(CF△Eν) glue set
Then, it performs serial communication and outputs to the camera side. Furthermore, above
The card's microcomputer (μCX) will stop during communications other than those described above.
Ru. Here, we will explain the spinch and its mechanism that appear in the explanation of this example.
The performance and various data are shown in Tables 1 to 10 below.
vinegar. Table Table Table 2 (Continued) Table Function Data (Fb, ”) AM Table Mode Setting Data (MSbn) E” PROFI Table Card Type Data (CKbn) AM Table Change Data (CDb, ) (RAM) Table card communication output gutter ccsb, > Table setting data (CMSbn) E2PROMIC card,
Function data table (continued) In the tables above, the control system for camera functions using an IC card is shown.
Although the entire stem has been described, the data in this example
The settings are shown in the flowchart in Figure 35 and Figure 38.
The setting data is stored on the IC card side.
In particular, the steps in the flowchart shown in Figure 35 etc.
(lcD90) (ICD92), on the side of the camera body.
Data storage is performed in step (1) of the flowchart in Figure 28.
2792) (2794). However, before storing this data in the camera body,
The setting data CCKb, ~CCKb,, is connected to the camera body.
The camera uses data communication (I[l) with the IC card.
The data is being transmitted to the main unit. Of course, the notes on the accessory side
For memory purposes, this setting data remains on the accessory side.
There is. For information on detecting the end of data settings, use the card data setting switch.
The switch (Se□) is turned ON and OFF, and the card is displayed.
The control signal will no longer be output from the card, so
, step (12730) in the flowchart of FIG.
This is done when the judgment is N (determined as No).
. According to the present invention, when accessories are attached to the camera body,
The data set in the status is used for both the camera body and accessories.
The accessory will be saved in the
control based on that data on the camera body side.
I can do it. Therefore, multiple accessories can be designed in the same way.
If the data is set, you can use the functions of multiple accessories at the same time.
Can be used with ~ and attach multiple accessories at the same time
There is no need for such a structure. Therefore, the camera body
There is no need to complicate the structure or make it large. On the other hand, setting data is also saved in accessories, so
Use this accessory to connect other camera bodies to their data.
This has the effect of being able to control the camera system in its entirety.
The body's functions will be improved. Furthermore, memory control means are included in both the camera body and accessories.
If it is set up, the memory control means will be shared.
, the burden of control exchange between the camera body and accessories
can be used lightly.

[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 display format when the battery is installed. This is a flowchart 1 showing a routine for resetting the oral camera. FIG. 4 is a flowchart showing the initial routine of FIG. 3. The fifth question is the flowchart for data communication between the camera and the IC card attached to it. Figure 6 shows photometry, AF, display,
FIG. 7 is a flowchart showing a routine for inputting lens data, and FIG. 8 is a flowchart 1 for inputting flash data. FIG. 9(a) is a circuit diagram of the electronic flash device, and FIG. 9(b) is a circuit diagram of its interface. Figure 10(a) shows the flow of the AF routine.
Figure 10) is a flowchart for determining the day focus amount, and Figure 1m is a diagram showing the distance measurement range and photometry range within the photographic screen. 12th
The figure is a flowchart 1 showing the setting routine of the keys provided on the camera, and FIG. 13, FIG. 14(a),
Figure 4 (b) 9 15th, 16th. FIGS. 17 and 18 are flowcharts 1 showing a specific setting routine for the various keys. Figure 19 is a flowchart 1-1 showing the routine for creating photometric data.
FIG. 20 is a flowchart 1 of AE lock. Second
FIG. 1(a) and FIG. 21(0)) are flowcharts for setting the aperture and shutter speed. Figure 22 is a flowchart of exposure calculation 1. Figure 23 (a) 1 23
Figures (bL Figure 23 (C), Figure 24, 25th and 2nd
Figure 6 shows the 71 coach yards for each mode. FIG. 27 is a flow chart of control by an IC card (particularly a program card). FIG. 28 is a flowchart 1 showing a display routine, and FIG. 29 is a diagram showing an example of display in one step of the flowchart. Figure 30 is a mode setting flowchart 1, Figure 31 is an exposure control flowchart, Figures 32(a) and 32(1).
) is a flowchart related to the 1-frame winding of the film, and FIG. 33 is a flowchart 1. which does not show the interrupt routine related to 1M opening. FIG. 34 is a flash showing an example of the display when the card is inserted. FIG. 35 is a flowchart 1 showing various routines of the IC card, and FIG. 36 is a program diagram particularly regarding the program cartogram card. FIG. 38 shows a display example related to flowchart 1 in FIG. 35. (CD)-1 C card. (17C) My fungus on the camera body. CIJ C2) IC card microcomputer. (SCDS) Card data setting switch. Applicant Minolta Camera Co., Ltd.

Claims (3)

[Claims] (1) A control means for controlling a predetermined part of the camera based on data, a first storage means provided in the camera body for storing data, and an accessory detachable from the camera body. a second storage means for storing data; a setting means for setting data with the accessory attached to the camera body; a detection means for detecting completion of data setting; and setting in response to the output of the detection means. A camera system comprising: storage control means for storing subsequent data in the first and second storage means. (2) The first feature, wherein the storage control means is provided in the camera body and the accessory, respectively.
Camera system according to the claims. (3) The camera system according to claim 4 or 2, wherein the accessory is an IC card.