JPS63267933A - Camera - Google Patents

Abstract

PURPOSE:To prevent the useless continuation of interval photographing by stopping the counting of a timer in the case of releasing in a camera main body while an interval timer is working. CONSTITUTION:When an interval timer mode switch 25 is switched on a display starts the actuation as a subtraction timer by adding the display of second unit if the main switch 53 of the camera main body 46 is ON. If the main switch 53 of the camera main body 46 is OFF, however, the display part 38 is returned to the display form before it is in an interval timer mode and counting-down is not executed. Namely, if a photographer releases in the camera main body in order to execute usual photographing while the timer of an interval timer circuit is working for interval timer photographing, the counting actions of the timer stop and the interval timer mode becomes ineffective, then shutter releasing action is executed. Thus, the useless continuation of interval photographing against the photographer's will can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a safety control means during interval timer photography of a camera equipped with a data imprinting device.

<Prior Art> Conventional camera interval timers are not configured to stop the timer operation if a release operation is performed on the camera side during the operation.

<Problems to be Solved by the Invention> By the way, in the conventional example described above, the operation of the timer is not stopped, so if the photographer wants to use the timer again after releasing the shutter, it is fine, but if he does not want it, he has to stop the timer. If you forget to do this, the interval timer will continue to run against your will.

In view of the problems of the prior art described above, the present invention aims to provide a camera that prevents unnecessary photography from continuing against the photographer's will when the release is operated on the camera body while the interval timer is counting. purpose.

Means to solve problems〉 A detailed description of the present invention is provided to achieve the foregoing objectives.

The present invention provides a camera that performs a shirt release operation based on a release signal output from an interval timer circuit at predetermined intervals, in which the shirt release button on the camera body is pressed during the subtraction operation of the interval timer circuit. The subtraction operation is stopped when the release operation is performed.

<Function> If the photographer releases the camera for normal shooting while the timer of the interval timer circuit is operating for interval timer shooting, the timer's counting operation will stop and the interval timer mode will be disabled. Then, the shirt-tallerize operation is performed. Therefore, it is possible to prevent interval shooting from continuing unnecessarily against the photographer's will.

<Embodiment> The system of the embodiment of the present invention will be described below with reference to FIGS. 1 to 18.
This will be explained based on the diagram.

First, FIG. 3 is a block diagram showing the circuit configuration of a data imprinting device with an interval timer function.

In the figure, the part to the right of the broken line is the control circuit inside the camera body. 1 is a microcomputer central processing unit that sequentially controls the overall operation of this system, changes the watch and calendar, and controls the timer! (Hereinafter referred to as CPU
), 3 is a 100 circuit that generates a power-up clear signal when the camera battery 2 is inserted, and when this signal is input to the reset (RE) terminal of the CPU 1, the CPU
U1 is reset. 4 is the reference clock pulse (CL
K), which is input to the CLK input terminal of the CPU 1, simultaneously synchronizing the entire circuit operation of this system. 5 is a frequency divider circuit that divides the CLK pulse to create a pulse of 3211z in this embodiment, and
It is input to the HziNT terminal. 6 is a TRi timer that counts the lighting time of the data imprinting lamp 14;
When the count reaches O, the CPU 1's TR1NT interrupt signal is input. 7 memorizes the program contents R
OM, 8 is a RAM that inputs and outputs data.

10 is a monitor LCD, 11 is a data imprinting LCD, both of which are installed inside the back cover 45 of the camera as shown in FIG.
G) Terminal, common (COM) terminal, RFC terminal, PIM
Data imprinting contents, interval timer operation status, imprinting accuracy based on the signal from the terminal! i! (REC)
A mark 37, a photographing information (PIM) mark 36, etc. are displayed.

Next, the data imprinting circuit is connected to the TR of I10 port 17.
The buffer 15 connected to the i terminal (TR+) is connected to the base of a data transfer lamp drive transistor 12 and the emitter of a transistor 13, respectively.The collector of the transistor 12 is connected to the positive electrode of the power supply battery, and the emitter is The transistors 13 are connected to one terminal of the imprint lamp 14, respectively.
In order to drive the lamp 1 with a constant voltage, its base is connected to the output terminal of the constant voltage circuit 16, and its collector and the lamp 1
The other terminal of 4 is grounded.

In addition, in the I10 boat 17,
An N-channel MoS transistor 18 is connected to the terminal, and when this MOS transistor 18 is turned on, a low level is given to the 5ELF terminal of the camera sequence control circuit 52 in the same way as when the self-timer switch 50 on the camera body 48 side is turned on. is possible, and the 5ELF terminal is M
When the OS transistor 18 and the self-timer switch 50 are off, they are pulled up by the pull-up resistor 51 and given a high level.

19 is a serial interface circuit into which various information from the camera body 48 is input, and its chip select (C
8) A terminal, a serial clock (SCK) terminal, and a serial data input (SD I) terminal are respectively connected to the camera sequence control circuit 52, and when a serial code is input, the CPU 1 It is also connected to the 5iOiNT terminal.

Furthermore, the terminal So of the I10 boat 17.

Sl, 82.33, S4. S5 is a data imprint mode changeover switch 20. Imprint data and interval timer time correction switches 21, 22, 23, elapsed time imprint mode selection switch 24, and interval timer mode switch 25 are connected to pull-up resistors 26, 27, 28, 29, 30, and 31, respectively. Each is connected and pulled up.

Then, the CPU 1, TRi timer 6, ROM 7,
The RAM 8, I10 port 17 and serial interface 19 each have an address bus 32. They are connected by a data bus 33 for transmitting and receiving data and a control bus 34 for controlling their timing.

In addition, 53 is a main switch of the camera body, and when it is off, it is pulled up by a pull-up resistor 54, and the main switch of the camera sequence control t11 circuit 52 (
MSW) terminal.

Next, FIG. 1 is a rear view of the camera, and FIG. 2 is a sectional view of its main parts.

Reference numeral 45 denotes a back cover, which is disposed so that the CD 10 for the monitor can be viewed from the back, and also includes the switches 20 to 45.
25 is operable.

This monitor LCD 10 has a film counter display i.
35. A photographing status display mark 36 on the camera body, a data imprinting confirmation mark 37, and a display section 38 for checking imprinted data selected by the switches 20 to 25 are provided.

Further, the data imprinting LCD 11 connected in parallel to the monitor LCD 10 is arranged on the inner side of the spine 145, and the display data of the data imprinting LCD 11 is transmitted to the camera by the imprinting lamp 14. Main body 46
It is designed to be imprinted on the F side of the film on the side.

The operation of this embodiment with the above configuration will be explained.

First, the display section 38 for confirming imprint data is displayed.

An outline of the interval timer mode and elapsed time imprint mode will be explained.

First, regarding the display on the display section 38 for checking imprinted data, each time the data imprinting mode changeover switch 20 is turned on, the display section 38 displays the data of the calendar contents as "Year/Month/Day" or "Month/Day/Year". ``Day/Month/Year''``Day/Hour/Minute'' and ``Information imprinting mode for the number of film shots'' (hereinafter referred to as FC mode) are sequentially switched and displayed. This display section 38 has a segment arrangement that can display the abbreviation of the English station name, and when the switch 20 is turned on, the month is displayed numerically (6th
In addition to the display in English (Fig. 5), you can also selectively display the English text (Fig. 5).

In addition, the display may include "Year/Month/Day""Month/Day/Year""Day/
When displaying calendar information of "month/year", "1st/hour/minute", each display is changed by pressing the imprint data correction switch 21.
．． Increment by turning on 22 and 23.

Next, regarding the interval timer mode, when the interval timer mode switch 25 is turned on, the display section 3
8, regardless of the display state of the previous data imprinting mode, the mode shifts to the interval timer mode, and the time Ti from when the release button is pressed until the release signal is output is displayed in hours and minutes (FIG. 9). This display is corrected by switch 22.2.
It can be fixed in 3.

In this state, the interval timer mode switch 25
When turned on, if the main switch 53 of the camera body 46 is turned on, the display adds a display in seconds as shown in FIG. 10 and starts operating as a subtraction timer. however,
When the main switch 53 of the camera body 46 is off, the display section 38 returns to the display form before entering the interval timer mode, and no countdown is performed. The display section 38, which is operating as a subtraction timer, returns to the display form before entering the interval timer mode (FIGS. 5 to 7) 10 seconds before the release, and the circuit of the display section 38 is activated by the camera body 46. Sends a timer start signal.

When a release signal is input to CPtJl via the serial ink-face 19, the display section 38 starts operating as a subtraction timer again while displaying the time Ti in seconds. If the release end signal is not input to the CPU 1 within a certain period of time from when the self-timer is activated, the display section 38 returns to the display form before entering the interval timer mode and the countdown is not executed. If a release signal is input to the circuit from the camera body side while the interval timer is counting down, or if the data imprinting mode switch 20 is turned on, the countdown will stop and the display unit 38 will display the display before entering the interval timer mode. Return to form.

Furthermore, elapsed time imprint mode (hereinafter referred to as rPA mode)
), when the elapsed time imprinting switch 24 is turned on, the display section 38 enters the elapsed time display mode regardless of the display state of the previous data imprinting mode.

When the switch 24 is on, the year, month, and day, which are the starting points for elapsed time calculation, should be displayed (Fig. 11).
When the button 4 is pressed, the starting point (year, month, day) can be corrected using the correction switches 21 to 23.

If the year, month, and day can be displayed in the display format before entering PA mode, they will be displayed in that format. If they cannot be displayed, for example, the original imprint mode is [Date, Hour, Minute]
Mode] When in "off mode", the year, month, and day are displayed numerically in the order shown in Figure 11.

When the switch 24 is turned off, the elapsed time (current date - starting date) ΔT is displayed, and when a date signal is input from the camera body to the circuit of the display unit 38, six images are imprinted.

Needless to say, the elapsed time is updated at the same time as the current date.

The display form of the display section 38 is as shown in FIGS. 12 to 14, when ΔT>12 months, "year/month" display (first
(Figure 2), if ∆c≦12 months, “month/day” display (first
(Fig. 3), and if ΔT≦O, it will continue until ΔT>0.
0 months, 0 days” (Figure 14).

Regardless of the display form of the display section 38, when the data imprinting mode changeover switch 20 is turned on, the display section 38 returns to the current date display form before entering the PA mode.

By using the above-mentioned shot count imprinting mode (FC mode), interval timer mode, and PA mode in combination, it is possible to imprint not only the date and time, but also the shooting number and the number of days elapsed on photos recorded at fixed time intervals. This makes it very easy to record and organize photos.

Next, a description will be given of the information input unit that is input from the camera body 46 via the serial interface 19 in the system of this embodiment.

In this embodiment, data imprint signals, film counter information, and various camera information are input from the camera body.
As shown in Table 1, each 4-bit unit from Do to D3 is 1 in total.
A 6-bit serial data transfer is being performed. DO and Dl
are the 10s digit and 1s digit B of the film counter, respectively.
It is a C, O code. Next, D2 indicates a data imprinting signal and various information. When b3 (MSB) is 1, it is a data imprinting signal, and the lower 3 bits (b2, b+, bo
) The lamp lighting time for data imprinting is determined by the value of t.
o”-tylsec.On the other hand, b3 of D2
When is 0, the photographing information mark (PIM mark) is turned on at b2-1, and b2=orPIM mark is turned off. Further, when b3=o, if bl-1, the main switch 53 of the camera is on, and if bl-0, the main switch 53 is off. These are b3=1
When , the previous state is latched. Note that D3 is 4 spare bits.

\, \1, ! - -11,\, Do Dl H8B LSB H8B LSB
Rorororo Rorororo Counter 10 digit Counter 1 digit D2
D3 H3B LSB H3B LSB
Ox 0N 00xx: PIN mark 0FF OX1x: Main body main switch 53 ON state QxQx: Main body main switch 53 OFF state Table 2-2 RAM Table 2-3 RAM Table 2-4 RAM Table 2-5 RAM Table 2-6 RAM Next, the contents of the data memory of RAM8 will be explained according to Table 2. Then, the address label will be shown on the left and its contents will be shown on the right, as outlined below.

First, when bz (MSB) = 1 of 5TATtJSO, P
Indicates that the display is other than normal data imprint display, such as A mode display or interval timer display, and the lower 3 bits bz and bl.

"bo" indicates normal data imprint mode, "o"
o o'' is the imprint mode off, ``001'' is the year/month/day mode, 010 is the month/day/year mode, ``011'' is the day/month/year mode, '100'' is the date/hour/minute, and 101'' is the frame counter imprint mode. .

When b3-1 of 5TATtJS1, the TRi port is in a high (H) level output state, and when b2 = 1, the interval timer outputs iNT port = H level, and the main switch 53 status signal is input from the camera body 46. bl-1 indicates a timer operation state in which the interval timer performs a subtraction operation, and bo is unused.

5TATUS2 is switch 2 in Fig. 1 when b3=1.
1 to 23 indicate a correction state in which some data is being corrected, bz is unused, bl -1 indicates the reference date setting state of the PA mode, and bo -1 indicates the timer time setting state of the interval timer. show.

5TATUS3 is a flag that indicates a display request when a change occurs in the contents of the LCD display when b1=1.

5TATUS4 indicates that when b3=1, it is in interval timer mode and the imprint content is in PA mode,
Lower 3 bits bz, bt, b.

is a bit that specifies the display status. When set to 010, the reference date in PA mode is displayed. When set to 011, the elapsed time in PA mode is displayed. When set to 100, the interval timer setting is displayed.
101'' indicates the interval timer subtraction display state.

5TATUS5 indicates the REG port=H level output state when b3-1, bz, bl, b.

is unused.

5TATLJS6 indicates that when b1 = 1, the interval timer has less than 10 seconds remaining, and when bO-1, it indicates iN.
T boat = H level output state, b3. bz is unused.

Furthermore, 5ECONDO-YEARl stores the current time and the calendar's first digit of the second to the tenth digit of the year.
~PYEAR1 stores the first digit of the day to the tenth digit of the year of the reference date in the PA mode.

TRxMO-TRXHl is the interval timer setting time from the 1st digit of the minute to the 10th digit of the hour, TR8ECO~TRH
OURI is 1 second for interval timer subtraction count
Shows the digits to the 10th digit of the hour.

5WxO is the switch 23 pressed state when b3=1(F), the switch 22 pressed state when bz-1, the switch 21 pressed state when bl-1, and the switch 20 when bo=1.
Each indicates the pressed state.

Similarly, 5WYO is in the bl-1 switch 24 pressed state, b
o=1 indicates the pressed state of the switch 25, b 3
*b2 is unused.

S i 03B-3i 00B is serial data C3
4 bits of each of .about.Do are read and stored.

5iOC is a counter that counts the number of clocks as the serial code is input.
, Dl, C2, C3) buffer (Si03B, 5i0
2B, 5i01B, 5iOO8) is reset.

C0UNTO and C0UNTI are each 32H for timekeeping.
7 and 4112 counters, C0UNT3 and C0LJNT
4 are 32H2 and 4Hz for interval timer respectively
The counters C0UNT5 and C0tJNT6 are also counters of 32H2 and 4H2, respectively.

i NTCNT is 32 when iNT boat = H level output
This is a counter that counts the iNT boat output time for each interrupt of H2iN■.

FRO and FRI each store the 1st digit and 10th digit in the 7-frame counter mode of the data imprint mode.

Next, the sequential operation of the microcomputer will be explained based on the flowcharts of FIG. 15 and FIGS. 16-1 to 16-18.

First, FIG. 15 shows an outline of the program. This program is roughly divided into four blocks.

First, the initial settings for A. After turning on the power and canceling the reset, clear the memory area and set the initial display data.
After finishing the part where display contents are arranged, the CPUI enters a HALT state in which internal data is held. B32)1
ziNT is 321tz output by the frequency divider circuit in Figure 3.
This is a processing sequence of interrupts that occur 32 times per second due to the pulse of . Switches 20 to 25 are monitored, and when a switch is pressed, the processing corresponding to the pressed switch is performed, and the number of interrupts is counted 32 times. Generates a 1 second carry and increments the clock and calendar. The C5iOiNT lights up the data imprinting lamp and processes the input of camera information in the serial interrupt processing sequence that occurs when the serial code from the camera is input.

In the timer interrupt processing sequence that occurs when the RTi NTuTRi timer of D is counted up, processing is performed when the lighting of the data imprinting lamp ends.

Furthermore, this embodiment will be explained in detail according to the flowcharts shown in FIGS. 16-1 to 16-18.

When the power supply 2 is turned on, the microcomputer is initialized by the reset (RE) signal generated by the PUC circuit 3.
As shown in FIG. 16-1, the operation starts from step #001 of the program.

Clear the memory area in #002, set the initial display mode of the data imprint mode to "Year/Month/Day" mode in #004, and set the date on the calendar to, for example, "January 1, 1987" in #004. It is set to . Then #
Clear the stack point area with 005 and #0
After enabling interrupts in #06, the microcomputer enters the HALT state, which is a data holding state, in #007.

Next, when a 32Hz NT interrupt signal is input to the CPU 1, the operation starts from #101 as shown in FIG. 16-2. #101. In #102, the status of each switch is read from the switch input port.

Next, #104. #105. #106. #107,
#108. #109 (#108. #10
9 in FIG. 16-6) and changes in the states of the switches 20 to 25 are determined, and if the switch states have changed, corresponding processing is performed. This process will be described in detail below. On the other hand, if no switch has changed state, switch from #109 to #20.
1 (Figure 16-7).

Here, a case where each of the above-mentioned switches is pressed will be described.

First, the switch 20 is pressed, and when it is determined in #104 that the switch 20 is pressed, #129° #130. #
131. #132. #134. #135 and #2
Continuing to step 01, if it is determined in #129 that the display content is the elapsed time display in PA mode, or if it is determined in #130 that there are 10 seconds left in timer mode, the PA mode or timer mode is canceled in #132. subroutine RTCANCL is called. On the other hand, timer 1
If the state is not 0 seconds ago, it is further determined in #131 whether the display state is normal mode. If the mode is other than normal mode, press R at #132 in the same way as when the timer is 10 seconds before.
Call TCANCL. This timer cancel subroutine RTCANCL processing will be described later. After the timer cancellation process, the process moves to #201.

Now, if the display mode is determined to be normal mode in #131, 5TATUSO is incremented by 1 in <#133, thereby advancing the data imprinting mode by one. Next #134. When 5TATtJSO=6 is determined in #135, by setting 5TATuso=o, the data imprinting mode is changed from "year/month/day" to "month/day/year".
→ “Day/Month/Year” → “Day/Hour/Minute” → rFC mode” →
Cycles through 6 modes of "off mode".

Next, modify switches 21.22. The case where '23 is pressed will be explained.

When it is determined in #105 that the state of the switch 21 has changed, the state of the switch after the change is determined in #105A, and if it is in the pressed state, b3-1 of 5TATUS2 is determined in #140.
and set it to the modified state, and since the display contents changed in #141, change the bl-1 of 5TATUS3 to update the display.
and the display request flag is set. Next, at #142, switch 2 is set according to the values of 5TATUSO and 5TATUS4.
It is determined which data corresponds to No. 1, and the corresponding data is corrected. Details will be described later. After the correction process is completed, the process advances to #201.

On the other hand, in #105A, if the switch state after the switch state change is determined to be off, 5TATUS is determined in #143.
Set b3-〇 in 2, reset the correction status, and set 5 in #144.
Set b1 of TATUS3 to 1 and set the display request flag. Regarding switch 22゜23, #106. #107
The processing after the change in the state of each switch is confirmed is the same as that for the switch 21, so a description thereof will be omitted. Switch 22.23
In the case of , the process also proceeds to #201 after the correction process.

Now, if the switch 24 is pressed next (16-6
In FIG. 10, when it is determined in #108 that the state of the switch 24 has changed, the state of the switch 24 after the state change is determined in #160. If it is determined that the switch 24 is on, the interval timer mode cancel subroutine RTCANCM is called at #170, and the interval timer is canceled. This subroutine RTCANCM will be described later.

Then, in #171, 5TATUS is set to the PA mode reference date setting state, and in #172, the display mode is set to PA mode reference date setting display. At #173, a subroutine EXTDSP for controlling mode display other than normal display is called.

After that, proceed to #201.

On the other hand, if the switch 24 is off after the state change in #160, it is determined in #161 whether the PA mode reference date is set, and if it is in the setting state, the PA mode is set to elapsed time display mode in #162, and in #163 (STATLJS2)t
=O, cancel the PΔ mode reference date setting state,
Proceed to #201.

Next, regarding the process when the switch 25 is pressed down, when it is determined in #109 that the state of the switch 25 has changed, it is determined in #110 whether the interval timer is already in an operating state.

Therefore, if it is determined that the interval timer is not in the operating state, it is further determined in #111 whether the interval timer is in the timer time setting state. If the interval timer is not in the time setting state, proceed from #121 → #201 #
At step 121, a jump is made to subroutine TRMS for interval timer mode setting processing.

Therefore, the interval timer mode setting process will be explained first with reference to FIG. 16-11. In #121, set the STA-US to the interval timer time setting state, and #
In step 122, all the digits from the first second digit to the tenth digit of the hour on the timer's counting watch are cleared to O, and in step #124, the EXTDSP subroutine for performing display processing other than the normal mode is called. This subroutine will be described later. Next, in #124, it is determined whether the mode is interval mode and the data imprinting mode is PA mode, and if the data imprinting mode is other than PA mode, it is further determined in #125 whether the display state is PA mode elapsed time display. If the elapsed time is displayed, 5TAT is displayed in #126.
The third and second bits of LIS4 are set and 5T
Set the ATUS to the interval timer setting state and the data imprinting mode to the PA mode state. #12
The same is true when the third bit of 5TATUS4 is determined to be set at 4. On the other hand, if it is determined in #125 that the imprint mode is a non-PA mode, the interval timer setting display state is set in #127.

After completing the interval timer mode setting, the process advances to #201. If it is determined in #111 that the interval timer time is set, #113. The process advances to #114, and the interval timer starts operating from then on. At #113, the 1NTAcT subroutine that activates the iNT boat is called.

1NTACT subroutine starts from #730 (first
Figure 6-18). Output iNT boat=H in #731,
In #732, the iNT boat output time is counted. i
Set the initial value of the NTCNT counter, and in #733
NT boat=H output status flag is set.

Next, in #114, the interval timer time setting state flag is reset, in #115, 5TATLJS is set to the main switch state signal input wait state according to the serial code at the time of starting the interval timer, which will be described later, and in #116, the timer is set to the operating state. It is set. Next, the display request flag is set in #117, and the first and tenth digits of the interval timer are cleared to O in #118.
In #119, the timer time from the first digit of the minute to the tenth digit of the hour of the interval timer setting time stored when the timer was started is copied to the RAM area where it is actually counted down. After that, proceed to #201.

Here, a method for determining each mode and correcting data when the above-mentioned correction switches 21, 22, and 23 are pressed will be explained in detail with reference to FIGS. 16-3, 16-4, and 16-5.

First, in the case of modification at switch 21, the 16th
In FIG. 3, it is determined whether the MSB of 5TATUSO is set at #800, and if it is set, it is determined that the display is in a mode other than normal mode. On the other hand #801
, it is determined that the mode is PA mode and the display format is "Month/Day/
If the format is "year", the corresponding digit of the switch 21 is "E month", so the upper digit PMONTH of the elapsed time reference date is incremented in #804. On the other hand, if the display mode is "day/month/year", the corresponding digit is "day", and the day digit PDAY of the elapsed time reference date is incremented in #805. The display format is "Month/Day/Year" or "Day/Year".
If the state is neither "month/year", the reference date display form in the PA mode is "year/month/day", so the corresponding digit becomes the year digit, and the year digit PYEAR is incremented in #803. On the other hand, if the normal display mode is determined in #800, the process in #806 is performed in the same way as when determining the display format in the PA mode. #807. The display mode is determined in #808 and #809, and #811. #812.
#813. At #814, the corresponding digit of the switch 21 is incremented.

Next, regarding the correction process when the switch 22 is pressed, the first
5T at #820 in the same way as the process of switch 21 in Figure 6-4.
If the MSB of ATUSO is set, it is determined that the display content is outside normal mode, and if the display content in #821 is the interval timer time setting display, #825
The timer hour digit TRXHOUR, which is the digit corresponding to the switch 22 displaying the timer time setting, is incremented.

On the other hand, #823. #826 or #823-#824
The correction of the corresponding digit of the PA mode reference date by the switch 22 is the same as that for the switch 21.

On the other hand, when it is determined in #820 that the mode is normal display mode, the display mode is determined to be in #827 as in the case of the switch 21 described above. #
828. #829. The display mode is determined in #830, and the corresponding digit of the switch 22 is incremented in #831. #8
32. #833. This is done in #834.

Finally, regarding the correction process when switch 23 is pressed, the 16th
-5 figure, #840. As in the case of the switch 22, the interval timer time setting mode is determined in #841, and the timer minute digit (TRXM i N) corresponding to the switch 23 is incremented in #845. On the other hand, #847 in case of normal display. #848.
#849° #850. Determine the display mode with #851,
#852, #853. #854. #855. The digit corresponding to switch 23 is incremented at #856, as in the case of switches 21 and 22.

Next, when the monitoring process for each of the switches 20 to 25 described above is completed, the 32H7 interrupt process continues to the watch increment process and the timer down count process starting from #201 (FIG. 16-7).

That is, in #201, it is determined whether the iNT boat is in an active state. If the iNT boat is active, #
202 is the iNT boat output time counter i NTCNT
Increment by 1 day and set this i NTCNT at #203.
If it is tNTcNT-0, the iNTSTP subroutine for setting iNT boat-L is called in #204. This 1NTsTP subroutine will be explained from #750 in FIGS. 16-18.

In #751, it is set as iNT boat-H, and in #752, it is set as iNT boat-H.
Canceling NT boat active state. Here, the iNT boat output time is 1/32H2X7 times - 21 since the initial value of 1NTCNT counter is 7.
6 m5ec.

Next, steps #205 to #210 perform watch and calendar increment processing for data imprinting. #
C0LJNTO of 32Hz counter for watch with 205
If it is C0UNTO-8 at #206, output 4 H2 (7) carries, and at #207 it will be 4Hz.
At the same time as the counter C0UNTI is incremented by 1, C0UNTO is cleared to O in #207A. Next, in #208 it is determined whether C0LINT1=4, and if it is 4, a 1 second carry is output in #210, and #2
At 10, the watch and calendar are incremented. In #211, it is determined whether the timer is in operation. If the timer is in operation, the determination in #212 as to whether the timer is in the REC port-H output state is not performed. In other words, while the interval timer is operating, a separate counter is used to count down the timer setting time while the above-mentioned watch counter from #213 onwards is used, and the data imprinting confirmation mark (RFC boat) is used.
When outputting, it is used to count the output time, so if the interval timer is operating or the REC baud 1~
= 1'' If the output is not in progress, the process jumps to steps from #250 onwards without counting from #213 onwards. Here, if the interval timer is operating or the REC boat is
If output 1 is in progress, the above-mentioned C0LJ N T is output in #213.
1,! :LL Separately (separately installed 32Hz counter C0UN
Increment T3 by 1 and set C0LINT3 at #214
=8.

C0UNT3 = 8 mule, 4Hz not-yarika R live, 4Hz counter C0LJN at #215 in Figure 16-8
Increment T4 and set 32Hz counter C at #216
0LJNT3 is cleared to O. Next, #218, #2
At step 19, it is determined whether the counter content of C0uNT4 is 4 or more, and if it is 4 or more, the timer generates a carry of 1 second. In this state, it is determined in #220 whether the interval timer is in an operating state. If the interval timer is in the operating state, it is determined in step #221 whether the main switch state is the main switch state or the signal input wait state according to the serial code when the timer is started. If it is not in a wait state, the process advances to #222, and subroutine RLTiMER for performing countdown processing of the interval timer is called at I#223 where the display request flag is set. Next, regarding this RLTiMER, the 16th
-10 To explain, RLTiMER is #301
Processing begins, and since the timer counter generates a carry of 1 second in #219 mentioned above, in #302, the first digit of the second digit TR8ECO of the interval timer is subtracted by 1, and in #303, the first digit of the second is determined. In the case of O, 1 is subtracted from the 10th digit of the second. Next, #304
As a result of subtraction from the 10th digit of the second, it is determined whether the zero flag of the microcontroller is set, and if it is set,
In #305, the minute digits are decremented, and if the zero flag is set as a result of the analysis, the hour digits are sequentially decremented. Next is #306. #307. In #308, it is determined whether the minute digit = 0, the hour digit - 0, the 10th digit of the second - 1, and the 1st digit of the second - 0, that is, 10 seconds before the interval timer count up. If it is 10 seconds before, In #309, the i-- NTACT subroutine that activates the aforementioned iNT boat is called. For example, if the camera's self-timer seconds are 10 seconds, it is determined that 10 seconds ago, and i
By setting the NT boat to H level, the self-timer starts counting.

Next, in #310, set 5TAIJS so that the interval timer has less than 10 seconds remaining, and in #311, set 5TAIJS
By resetting the third bit (83B) of USO, the countdown display of the interval timer is returned to the display of data imprinting contents. Next, since a change occurs in the display contents, a subroutine MDCLR for clearing the data display area is called in #312. This MDCLR processing is #395 in FIG. 16-15. #396
The display request flag is set in #395, and a blank is output to each display digit in #396 to clear the display area.

On the other hand, in #225 it is determined whether C0UNT4 of the 4Hz counter is greater than 8. If it is, a 2 second carry occurs as shown in #226, and in #227 it is determined that the data imprinting confirmation mark is output (REEC port = H). Then, #
In step 228, the RFC port is set to L, the RFC mark 37 is turned off, and in step #229, 5TATUS is reset to the data imprinting confirmation mark output status flag. Next, #25
0 determines whether C0UNTO=O (Figure 16-9), and 0
If not, check the state of the display request flag in #251 and if the request flag is set, #259t'5TAT
The display mode is determined based on the states of USO and 5TATLJs4, and the display contents according to the mode are output to the CD driver 9. After that, the display request flag is reset in #260, and the IALTALT state is set in #280. On the other hand, #25
If C0LINTO=O at 0, a carry of 4H7 occurs, and in #252 it is determined whether the interval timer has less than 10 seconds left, and 10 seconds remain.
If it is within seconds, it is further determined in #253 whether the interval timer is in a countdown state, and if it is not in counting operation, in #254 the timer's first digit of seconds TR8
Increment ECO by 1. Next, TR at #255
It is determined whether 8ECO has become 8, and if it is 8, #2
56, the 10th digit of the timer is incremented by 1, and at the same time, TR8ECO is cleared to 0 in #256A.

In #257, it is determined whether this T R"S E C1 is larger than 10. If it is larger than 10, it is determined that 20 seconds or more have passed since the timer counted up (4Hz x 80
(times counted), the RTCANCM subroutine for canceling the interval timer is called in #258. The RTCANCM subroutine will be described later.

#2: Interval timer mode is canceled
At 59, the mode is determined based on the values of 5TATIJSO and 5TATUS4, and the display according to each mode is performed, and then 1-
1A LT Enters state. If the display request flag is not set in #251, the display content remains unchanged and remains in the HALTALT state.

Next, the process when a serial code is input from the camera body will be explained with reference to FIGS. 16-12.

When the serial interrupt signal of CPU1 is input, the program starts processing operation from 5iO1NT#501.

In #501, it is determined whether the content of the S i CNT counter that counts the number of pulses of the serial synchronization clock is 16 or not, and if it is other than 16, the serial data input at that time is invalidated and enters the 1'' ALT state. Conversely, if the number of clocks is 16 and the data is valid, in #502 the contents of each serial buffer are divided into four parts of 4 bits each, and the 16 bits are divided into 5ilo, 5i01.5i02, . It is loaded into each RAM area of SiO3, and the contents of the 3iCNT counter are cleared to O in #503. Then #504 is 5
The state of the 3 bits (MSB) of iD2 is determined, and if it is 1, it is determined that it is a data imprinting signal, and in #550, the imprinting lamp 14 is turned on and the subroutine LAMPON is called.

Here, this lamp lighting process will be explained with reference to FIGS. 16-13. #601. #602. In #603, it is determined whether the lamp is already lit (TRi boat=]''), the data is being corrected using the correction switch, or the PA mode reference date setting letter B (switch 24 is being pressed), and if either condition is present, the lamp is lit. It is prohibited and the lamp does not light up.

Next, in #604, it is determined whether 5TATLIS has less than 10 seconds remaining on the interval timer. If it is less than 10 seconds, it is determined in #630 whether the data display mode is off mode, and if it is off mode, the next A subroutine PH0TOEND is called to perform preparation processing for starting interval time counting, and if the mode is not off, the process proceeds to the actual lamp lighting processing from #608 onwards.

Next, the aforementioned subroutine PH0TOEND will be explained with reference to FIGS. 16-14. At PH0TOEND,
First, in #661, clear the 1st digit of seconds and 10th digit of the interval timer counter to 0, and in #662, enter the interval time setting time memorized at the start into the area where the actual countdown is performed from the 1st digit of minutes. Copying up to the 10th digit. Next, in #663, a subroutine EXTDSP is called which performs display processing other than normal data imprinting content display.

In EXTDSP, starting from #350 in Figure 16-16, in #351 the 5TATLJS is set to a display state other than normal mode, in #352 the display content is changed, so the display request flag is set, and in #353 the display is Clears the display by outputting a blank to each digit in the area.

Next 1. - After EXTDSPffi treatment, smell #665
The interval timer remaining 10 seconds or less state of STATUS is reset, and the flag is set again to the interval timer countdown operating state in #666. next,
In #667, it is determined whether the data imprinting mode is the elapsed time display in PA mode, and if it is the elapsed time mode, the process proceeds to #668, sets the data imprinting mode to PA mode with 5TATtJS in interval timer mode, and then A flag is set for the display to display a down count while the timer is operating. On the other hand, if the data imprinting mode is not PA in #667, only a flag is set to indicate that the display content is the down count of the timer. This completes the PH0TOEND process and returns to the original process. Furthermore, if the data imprinting mode is off mode, the HALT state is entered after returning from the LAMPON subroutine.

Next, if the interval timer is not within 10 seconds in #604 in the LAMPON subroutine,
#605. In #606, it is determined whether 5TATUS is in the process of counting the interval timer or setting the time of the interval timer, and if either state is in progress, cancel processing of the interval timer mode is performed in #6.
Do it after 20. This process will be described later. next#
If it is determined in steps 605 and #606 that neither of the above states exists, it is determined in #607 whether the data imprinting mode is off mode, and if it is off, the data imprinting lamp lighting process is not performed and HAL returns after returning.
Enter T state. On the other hand, if it is determined in #607 that the mode is not off, the process proceeds to #608, and the lower three of 5iD2
The time of the TRi timer is set according to the value of the bit, and the timer starts counting. Next, TR at #609
By setting i-boat=H, the lamp 14 actually starts lighting from this time. In #610, 5TAI
Set JS to TRi boat = H output state, #611
The REC mark 37 is lit in step #612, and the REC boat = daily output status is set to end the lamp lighting process. Thereafter, it returns to 3iQiNT and enters the HALT state.

On the other hand, #605 first. If the interval timer is operating or setting the interval timer time in #606, 5TAT is determined in #620.
It is determined whether tJS is an interval timer and the data imprinting mode is PA mode, and the means for canceling the interval timer is divided into two. First, if the data imprinting mode in the interval timer is PA mode, that is, the MSB of 5TATtJS4 is 1, the process advances to #621 and the RTCANCM subroutine is called. In the RTCANCM subroutine, the 16th-1
In FIG. 5, the interval timer operating state flag is reset in #391, and the interval timer time setting state flag is reset in #392. Next, #393
After resetting the interval timer less than 10 seconds remaining status flag, the program returns.

Next, in #622, the display after canceling the interval timer is set to display the PA mode elapsed time, and in #623, since a change has occurred in the display contents, a flag for display request is set. After calling the aforementioned subroutine MDCLR to clear the display area in #623,
Return from the AMPON subroutine. On the other hand, #
#640 if the MSB of 5TATUS4 is 0 in 620, that is, the data imprinting mode is other than PA mode.
In this step, a subroutine RTCANCL is called which performs processing for canceling the interval timer mode. In the subroutine RTCANCL, #381 is shown in Figure 16-15.
In STΔTUS, the MSB of 5TATUSO is reset to return to the normal data imprinting contents. Here, even if the interval timer mode or PA mode is entered and the MSB of 5TATUSO is set, the value of the lower 3 bits will not change, so if the interval mode or PA mode is canceled, the lower 3 bits will always be reset by resetting the MSB. By determining the value of the bit, it is possible to return to the state (display) of the data imprinting mode before entering the interval timer mode or the PA mode. Next, the RTCANCL subroutine is
After jumping to TCANCM and resetting each 5TATtJS flag in the interval timer mode as described above, the program returns from the LAMPON subroutine and enters the HALT state.

Next, regarding the 5iOiNT interrupt processing, Section 16-1
If it is determined in #504 in Figure 2 that it is not a lamp lighting signal, in #505 the PIM mark port is set to rl-IJ or "L" according to the state of the second bit of 5iD2 in #506. It is set in #507. next#
At 508, the state of the first bit of 5iD2 is determined,
The processing is divided depending on the state of the main switch 53 of the camera body. If the main switch 53 is initially turned on, #509. In #510, it is determined whether 5TATtJS is in the operating state of the interval timer and in the state signal input wait state of the main switch 53 based on the serial code. If it is in the wait state, clear the 1st and 10th digits of the timer counter in #511 and return 5TA.
Reset the wait state of TtJS with #512 and #5
In step 13, the interval timer is set to an operating state, and the timer is set to start counting down from the next 32H2 interrupt processing. Next, in order to notify the camera body of the end of the wait state, in step #514, the iNTSTP subroutine for setting iNT boat-L is called, and then the HALT state is entered.

i NTSTP subroutine #7 in Figures 16-18
At #51, the I10 boat 17 outputs iNT boat=L, and at #752, the iNT boat active flag of 5TATtJS is reset.

Next, if the main switch 53 is determined to be off in #508, it is determined in #515 whether the interval timer is in an operating state, and if it is in an operating state, the above-mentioned LAMPON subroutine (16th-13th Figure) #6
20. #621. #622, #623. Similar to #624 or #620° #640, #516. #51
7. #518, #519. The interval timer cancellation process is performed in two steps depending on whether the data imprinting mode is the PA mode or not in the order of #520, #516, and #530. After the interval timer cancellation process, it enters the HALT state.

Next, timer interrupt processing (RT i NT) that occurs when the TRi timer counts up will be explained with reference to FIGS. 16-17.

When a timer interrupt occurs, the CPU 1 starts operating from #701. In #701, TRi boat is set to [ and lamp lighting is ended. Next, 5TATt at #702
Clear JS to TRi boat-H output status, #703
In this step, it is determined whether there are 10 seconds or less remaining on the interval timer, and if the remaining time is not 10 seconds or less, the RT i NT process ends and the HALT state is entered. On the other hand, if it is determined in #703 that the interval timer is in a state of 10 seconds or less, a subroutine PH0TOEND is called which performs preparation processing for counting the next interval time. PH0T
The OEND subroutine is as described in the 5iOiNT process above. Next, in #705, the first digit of the second and the tenth digit of the interval timer counter are cleared to O, and in #706, the first digit of the minute is placed in the RAM area where the interval timer setting time stored at the start is actually counted. Therefore, up to the 10th digit of the hour is copied. Next, in #707, a subroutine EXTD performs display processing other than normal data imprinting content display.
Calling SP. The processing of EXTDSP is as described above.

The sequence then enters the HALT state.

Next, we will explain how to monitor the status of the camera's main switch 53 when starting the interval timer.
I will explain.

Since the camera release method using a timer during interval timer operation is configured to start the self-timer, the camera control circuit uses (1) a timer start signal, (2) a timer release signal, and (3) activation of the self-timer using a self-switch. , must be distinguished. FIG. 17 shows the circuit configuration of the connection between the iNT port terminal of the interval timer and the 5ELF terminal of the camera control circuit in this embodiment, and the left half inside the broken line shows the configuration inside the control circuit on the interval timer side. , the right half shows the control circuit configuration on the camera body side.

In the figure, 40 is an iNT output terminal of an interval timer control circuit 43 to be described later, 41 is an N-channel MoS transistor, which is the same as 18 shown in FIG. 3, 42 is an iNT signal output buffer, and 43 is an interval timer control built in the microcomputer. In the circuit, 50 is a camera self-timer switch, 55 is a 5ELF terminal of a camera control circuit, 56 is a self-signal input inverter, 57 is a resistor that pulls up the input of the inverter 56, and 58 is a camera body control circuit.

Next, the timing of each signal will be explained according to the timing chart in FIG. When inverter 50 is turned on, the input of inverter 56, which is normally pulled up by pull-up resistor 57, becomes L level. Here, the configuration of the camera control circuit 58 is such that the 5ELF terminal 55 is sampled at a constant period (T), and the self-timer is activated when the L level is detected twice, for example. In addition, at that time, the 5ELF terminal 55
After the first sampling when detecting the L level of the main switch, a serial code containing the state signal of the main switch is sent out via the serial interface 19.

In other words, when starting the self-timer on the camera side, the self-timer switch 50 is pressed for a time longer than the zumbling period T.

Next, at the time of starting the interval timer, the interval timer control circuit 43 turns on the MOS transistor 41 to set the 5ELF terminal 55 to L, as shown in the timing chart (a), and then the camera side turns on the 5ELF terminal 55 for the first time. Outputs the main switch status signal in serial code by sampling. The interval timer control circuit 43 receives this and at the same time sets the iNT boat to L. If this occurs before the next 5ELFi child is sampled, the self-timer of the camera body will not start. Since the interval timer control circuit 43 receives the status signal of the main switch 53 in the form of a serial code, it is possible to determine whether or not to start the interval timer by determining the code. The determination process is as described above in the section of 5iOiNT in FIGS. 16-12.

Finally, when the interval timer counts up and starts the self-timer, as shown in timing chart (b), unlike the start case described above, the timer side does not set the iNT port to H by inputting the serial code.
In this case, a certain period of time (200isec in the example)
By setting it to the IN-J level, the camera body starts the self-timer when it detects the rLJ level of the 5ELF terminal twice. Here, 5E of the camera body control circuit 58
The LF terminal sampling frequency II (T) is 200 m5
Needless to say, it is much shorter than ec.

Note that in the above embodiment, when the camera body releases the camera while the interval timer is operating, the interval timer mode is canceled, but the interval timer may be returned to the reset state.

In the case of 1, in the flowchart of Figure 13,
LAMPO when the serial code for lamp lighting is input
If 5TATUS indicates that the timer is operating in the N subroutine, the configuration is changed to call a subroutine that sets the interval timer in the processing from #620 onwards.

In this way, if you release the camera while the timer is running,
When trying to operate the timer again, there is no need to switch to interval timer mode from the beginning.

<Effects of the Invention> As explained above, the present invention prevents unnecessary continuation of interval shooting against the photographer's will by stopping the timer counting when the camera body releases the camera while the interval timer is operating. In addition, in this case, if data is imprinted using an electro-optical device such as a CD, data imprinting is prohibited to prevent the data imprinting result from becoming unclear due to the response delay of the LCD. There is.

[Brief explanation of the drawing]

Figure 1 is a rear view of a camera according to an embodiment of the present invention, Figure 2 is a sectional view of the main parts of the date mechanism on the rear side, Figure 3 is a block diagram of the electronic control circuit for its operation, and Figure 4. 5 to 14 are diagrams each showing the display state of the monitor LCD, and FIG. 15 is a schematic diagram of a flowchart explaining the control software, and FIGS. 16-18 are explanatory diagrams of flowcharts, FIG. 17 is a circuit diagram of the interval timer and the camera body connection section, and FIG. 18 is a timing chart of the timer operation. 10... LCD for monitor, 11... CD for data imprinting, 20... data imprinting mode changeover switch, 21, 22. 23... imprinting data and interval timer time correction switch, 24. ... Elapsed time imprint mode selection switch, 25... Ink-pal timer mode switch, 35... Film counter display section, 36... Shooting status display mark on camera body, 37
...imprint confirmation mark, 38...imprint data confirmation display section. Fig. 1 et al. 1 Fig. 2 @ 4 Fig. 18 Fig. 10 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Figure 16-4 RET RET 8L1 Figure 16-14 RET Figure 16-15 ET Figure 16-v RT iNT ALT Figure 16-18 iNT ACT iNT STP ET Figure 17 Figure 18 (a) Timer At the time of start (b) At the time of timer release (C) At the time of camera self-timer release Procedure amendment July 73, 1988

Claims (1)

[Scope of Claims] 1. In a camera that performs a shutter release operation based on a release signal output at predetermined intervals from an interval timer circuit, the shutter release button on the camera body is pressed during the subtraction operation of the interval timer circuit. A camera characterized in that the subtraction operation is stopped when the tallerize operation is performed. 2. It has a data imprinting device that illuminates the electroluminescent device with a light emitting means and imprints the data from the electrooptical device onto the film surface, and when the shutter release button on the camera body is pressed during the timer subtraction operation of the interval timer circuit. 2. The camera according to claim 1, wherein data imprinting is prohibited when a shutter release operation is performed.