JPS63267932A - Camera - Google Patents

Abstract

PURPOSE:To distinctly know the acting state of a timer in the midst of its actions and to always attain the specified filming of data in the midst of its release by selectively displaying either specified filmed data or the data of the acting state of sequentially altering interval timer on a display part provided on an outer surface. CONSTITUTION:An LCD 10 for monitoring provides a film counter display part 35, a display mark 36 for the photographing state of a camera main body, a data filming mistake mark 37 and the display part 38 for confirming the filmed data selected by switches 20-25. Namely, since the display of the contents of filming of data on the display part becomes the display of the acting state of the timer while the interval timer is working, it can be distinctly known that the timer is working and also the display is switched to the display of the contents of filming of data a certain time before the timer counts up. Thus, time necessary for changing the display of an electric optical device such as an LCD for low temperature can be covered and the filming of data can be surely possible at the time of shutter releasing.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a camera equipped with a data imprinting device, in particular, to improve the interval when the display section that displays the imprint contents and the display section that indicates that the timer is operating are the same. This relates to a display method at the time of release using a timer.

<Prior art> Conventionally, when the data monitor section and the interval timer set display section of a camera equipped with a data imprinting device are the same, when the timer is started from the timer time setting state, the data imprinting contents are switched at the start point. I changed it,
The operating state of the timer is indicated, for example, by blinking small dots at the edge of the display.

<Problems to be Solved by the Invention> However, the small blinking of the dots as in the conventional example described in ttJ has the disadvantage that it is difficult to tell even when the timer is operating with a little child's play.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above, and to provide a camera in which the operating state of the timer can be clearly seen while the timer is operating, and predetermined data can always be imprinted on the release.

Means to solve problems〉 The present invention will now be described in detail to achieve the above objects.

The present invention provides a camera that has a data imprinting device and performs a shirt release operation in response to a release signal output from an interval timer circuit at predetermined intervals, in which predetermined imprint data is displayed on a display section provided on the outer surface of the camera. This is designed to selectively display one of the data on the operating status of the interval timer that changes sequentially.

<Function> During interval timer shooting, when the timer is started by the release, while the timer is operating, the operating status is displayed on the display, for example, by subtracting, and when the timer reaches a certain period of time, e.g. 10 seconds before it counts up, the data is displayed. The display switches to the imprint content display, and a release signal is output upon count-up to perform a shirt release operation.

<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 υ control circuit inside the camera body. 1 is a microcomputer central processing unit (CPL) that sequentially controls the overall operation of this system, changes the watch and calendar, and controls the timer.
(abbreviated as J), 3 is a 200 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 C
PU1 is reset. 4 is the reference clock pulse (C
This is an oscillator that generates CLK (LK), and when it is input to the CLK input terminal of CPU i, the entire circuit operation of this system is synchronized. 5 is a frequency dividing circuit which divides the frequency of the CLK pulse to create 32112 pulses in this example, and outputs CPLJl.
It is input to the 32Hz NT terminal. 6 is a TRi timer that counts the lighting time of the data imprinting lamp 14, and when the count reaches O, TRt of CPLJl
Input N7 interrupt signal. 7 is a ROM that stores program contents, and 8 is a RAM that inputs and outputs data.

10 is a monitor LCD, 11 is a data imprinting LCD, both of which are attached to the back cover 45 of the camera as shown in FIG.
) terminal, common (COM) terminal, RFC terminal, and PIM terminal, display data imprinting contents, interval timer operation status, imprinting equipment (RFC) mark 37, and m shadow information (PIM) mark 36. etc.

Next, the data imprinting circuit
The buffer 15 connected to the i terminal (TRi) is connected to the base of a transistor 12 and the emitter of a transistor 13 for driving the data imprinting lamp, and 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, the I/'0 boat 17 has an N terminal connected to its iNT terminal.
A channel MOS transistor 18 is connected, and this MO
When the S transistor 18 turns on, the camera body 4
A low level can be 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 8 side is turned on, and the 3SELF terminal is pulled up when the MOS transistor 18 and the self-timer switch 50 are turned off. It is pulled up by a 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 (SDI) terminal are respectively connected to the camera sequence control circuit 52, and when a serial code is input, the CPLJl is connected to generate an interrupt of the CPU1. It is also connected to the 5iOiNT terminal.

Furthermore, the terminal So of the I10 boat 17.

S+, 32.83, Sa, and S5 are data imprint mode changeover switches 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.

Note that 53 is a main switch of the camera body, which is pulled up by a pull-up resistor 54 when it is off, and is connected to the main switch (MS) of the camera sequence control circuit 52.
W) is connected to the 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, on which the monitor LCD l0 is arranged so as to be visible from the back side, and the switches 20 to
25 is operable.

This monitor CD 10 has a film counter display section 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 disposed on the inner surface of the back cover 45, and the display data on the data imprinting LCD 11 is displayed by the imprinting lamp 14. Camera 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 ``Mode for imprinting information on the number of heel shadows on film'' (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 column 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 such as month/year and day/hour/minute, each display is changed to 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 the release signal is input to the CPU 1 via the serial interface 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 CPU1 within a certain period of time from when the self-timer is activated,
The display unit 38 returns to the display form before entering the interval timer mode, and no countdown is performed. 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) .DELTA. is displayed, and when a date signal is input from the camera body to the circuit of the display section 38, 8T is imprinted.

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

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

Regardless of the display format of the display section 3B, when the data imprinting mode changeover switch 20 is turned on, the display section 38 returns to the current date display format 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 D'
N respectively the tens digit and the ones digit B of the film counter.
, C, D code. Next, D2 indicates a data imprinting signal and various information, and when b3 (MSB) is 1, it is a data imprinting signal, and the lower 3 bits (bz, t) +,
The lighting time of the lamp for data imprinting can be changed from to to 71 seconds depending on the value of bo). On the other hand, if b3 of D2 is O, b2=1 and @Akira information mark (PIM
mark) is turned on, and the PIM mark is turned off at bz-0. Further, in the case of b3-0, if b1=1, the main switch 53 of the camera is on, and if bl-0, the main switch 53 is off. These are b3
When it is -1, the previous state is latched. Note that D3 is 4 spare bits.

Do Dl MSB LSB HSB LSB
Rorororo Rorororo Counter 10 digit Counter 1 digit D2
D3 H3B LSB HSB
LSBQXXX: Do not imprint 1000stoax 1001: tl m5ec 1010: t21sec 1011: t3msec 1100: t4 m5ec 1101: t5msec 1110: taa+5ec 1111: tymsec QlXX:Pill? -Reopen QQXX: pHt is completely OFF □x1x: Body main switch 53 ON status □x□x: Body main switch 53 OFF status 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. The address label is shown on the left and the contents are shown on the right, and will be summarized below.

First, when b2 (MSB) of 5TATUSO = 1, PA
Indicates that the display is other than normal data imprint display, such as mode display or interval timer display, and the lower 3 bits b2 and bl.

bo indicates normal data imprinting mode and “00
0" 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 "' i o i" is the frame. Indicates counter imprint mode.

5TATUS1 b3-1 TRi boat high (
H) Level output state, when b2 = 1, the interval timer outputs the iNT boat-H level, and the camera body 4
6 indicates a wait state until the state signal of the main switch 53 is input, b1=1 indicates a timer operation state in which the interval timer performs a subtraction operation, and bo is unused.

5TATUS2 is switch 2 in Figure 1 when it is b3-1.
1 to 23 indicate a correction state in which some data is being corrected, b2 is unused, when bl -1 is the reference date setting state of the PA mode, and when bo = 1 is the timer time 111 setting state of the interval timer. shows.

5TATLJS3 is a flag that indicates a display request when a change occurs in the contents of the LCD display when b1=1.

5TATLIS4 indicates that when b3-1 is in interval timer mode and the imprint content is in PA mode, and the lower 3 bits are b2, b, , b.

is a bit that specifies the display state, and when it is “010”, PA
The reference date of the mode is displayed, the elapsed time of the PA mode is displayed when it is 011'', the interval timer setting is displayed when it is ``100'', and the interval timer reduction status is displayed when it is ``101n''.

5TATtJS5 is RFC boat = H when b3-1
Indicates level output status, b2, bl, b.

is unused.

5TATtJS6 is a state in which the interval timer has less than 10 seconds remaining when it is bl-1, and an iN state when it is bo-1.
In the T-boat-H level output state, b3. b2 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~TRxH1 is the minute 1st digit to hour 10th digit of the interval timer setting time, TR8ECO~TRH
OUR1 is second 1 for interval timer subtraction count.
Shows the digits to the 10th digit of the hour.

swxo is fast at b3-1(7)"/-F-23
When pressed state, b2=1, switch 22 pressed state, b1
When =1, the switch 21 is pressed, and when bo=1, the switch 20 is pressed.

Similarly, in 5WYO, switch 24 is pressed in bl-1, t
)o-1 indicates the pressed state of the switch 25, and b3
．． b2 is unused.

5i03B~5iOOB are serial data D3~Do
4 bits each are read and stored.

5iOC is a counter that counts the number of clocks as the serial code is input.
, Di, C2, 03) buffer (S103B, 5i0
2B, 5i01B, 5iOOB> is reset to 0 when reading is completed.

C0UNTO and C0UNT1 are each 32t for timekeeping.
lz and 4l-1z counters, C0UNT3 and C0LJ
NT4 is a 32fiz and 4H2 counter for the interval timer, respectively, and C0LJNT5 and C0LJNT6 are also 32H2 and 4Hz counters, respectively.

i NTCNT is 32 when iNT boat-H level output
This is a counter that counts the iNT boat output time every time the 8ziNT interrupts.

FRO and FRI each store the 1st digit and 10th digit in the frame counter mode of the data imprinting 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, it is the initial 111 settings of A, but after turning on the power and canceling the reset, the end ICPUI is the part where the memory area is cleared, the first display data is set, and the display contents are arranged. enter the state. B-3
2HziNT outputs 32H using the frequency divider circuit shown in Figure 3.
This is a processing sequence for interrupts that occur 32 times per second due to pulses of z, and switches 20 to 25 are monitored.
When a switch is pressed, processing corresponding to the pressed switch is performed, and if the number of interrupts is counted 32 times, 1
Generates a 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 RTiNTG and tTRi timers of D are counted up, processing is performed when 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 100 circuit 3.
As shown in FIG. 16-1, the operation starts from step #001 of the program.

In #002, the memory area is cleared, and in #003, the initial display mode of the data imprint mode is set to
The mode is set to "month/day" mode, and the year, month, and day of the calendar is set to, for example, "January 1, 1987" in #004. Then #0
Clear the stack point area with 05 and #00
After enabling interrupts at step 6, the microcomputer enters the HAL T state, which is a data holding state, at #007.

Next, when the 32tlziNT 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 later. 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. The subroutine RT CAN CL is called. On the other hand, if the timer is not in the state 10 seconds ago, it is determined in #131 whether the historical display state is the normal mode. If the mode is other than normal mode, #13 is the same as when the timer is 10 seconds before.
2 calls RTCANCL. 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, 5TATtJSO is incremented by 1 in <#133, thereby advancing the data imprinting mode by one. Next #134. When 5TATUSO=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, a case where the correction switches 21, 22, and 23 are pressed will be described.

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 of 5TATUS2 = 1 in #140.
and set it to the modified state. Since the display contents changed in #141, 5TATtJS3's bl-
1 and a display request flag is set. Then #142
Based on the values of 5TATUSO and 5TATUS4, it is determined which data corresponds to the switch 21, and the corresponding data is corrected. Details will be described later.

The machine that completes the correction process proceeds 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.
2, b3 = 0, reset the correction state, and set 5 in #144.
Set b1 of TATIJS3 to 1 and set the display request flag. Regarding switch 22゜23, #106. #10
The processing after the change in the state of each switch is confirmed in step 7 is the same as that for switch 21, and will therefore be omitted. switch 22.2
In the case of 3, 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.

Thereafter, in #171, 5TATLJS 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 it is in the P mode reference date setting state, and if it is in the setting state, it is set to the PA mode elapsed time display mode in #162, and in #163 So (STATUS2) 1=0
and cancel the PA mode reference date setting status, #2
Proceed to 01.

Next, regarding the process when the switch 25 is pressed down, when it is determined in #10 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. Interval timer time 111! If it is not in the setting state, the process proceeds from #121 to #201 and jumps to subroutine 1''RMS for interval timer mode setting processing at #121.

Therefore, the interval timer mode setting process will be explained first with reference to FIG. 16-11. 5TAT with #121
Set the US to the interval timer time setting state, and press #
In step 122, all digits from the first second digit to the tenth digit of the hour of the timer's counting watch are cleared to 0, 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 display is displayed, 5TAT is displayed in #126.
The third and second bits of LJS4 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, STΔTUS is set to the main switch state signal input wait state according to the serial code of the interval timer star [・, which will be described later], and in #116, the timer is activated. It is set in the state. 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 Figure 3, it is determined whether the MSB of 5TATLJSO 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 #80
1, if the PA mode is determined and the display format is "month, day, year", the corresponding digit of the switch 21 will be "month", so the elapsed time reference day digit PMONTH is incremented in #804. Ru. 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 #823-9824
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 32 Hz 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.
-0 is determined, and if 1NTCNT-0, the +NTSTP subroutine is called in #204 to set the iNT port to -L. This iNTSTP subroutine will be explained from #750 in Figures 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 - 2 since the initial value of the iNTCNT counter is 7.
18 m5ec.

Next, steps #205 to #210 perform watch and calendar increment processing for data imprinting. #
205 for watch 32) C0LJNT of 12 counters
O is incremented, and if it is C0UNTO-8 in #206, a carry of 411Z is output, and in #207, C0UNT1 of the 4Hz counter is incremented by 1, and at the same time, C0UNTO is cleared to 0 in #207A. Next, in #208, it is determined whether C0UNT1-4, and if it is 4, a 1-second cutoff is output in #210, and in #210
The watch and calendar are incremented. #
In step 211, it is determined whether the timer is in operation, and if the timer is in operation, the determination in #212 as to whether the REC port is in the H output state is not performed. In other words, when the interval timer is operating, a separate counter is used to count down the timer setting time, and when the data imprinting confirmation mark (RFC boat) is output, it is not output. It is used to count the time that
Interval timer is operating or REC boat = 1
If the output is not in progress, the process jumps to the steps from #250 onwards without counting from #213 onwards. Here, if the interval timer is operating or the REC port is outputting H, #213T--a 3211z counter C0UNT3 provided separately from the above-mentioned C0UNT1 is incremented by 1, and it is determined in #214 whether C0UNT3=8.

COU N T 3 = 8', L'3 Ha, 4H
2(7)-1lJ occurs 1. ,, #2 in Figure 16-8
At #15, the 411z counter C0UNT4 is incremented, and at #216, the 321+2 counter C0LJNT3 is cleared to O. Next, in #218 and #219, C0
It is determined whether the counter content of IJNT4 is 4 or more, and if it is 4 or more, the timer generates a 1 second carry. 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 the wait state, the process advances to #222, and after the display request flag is set, the subroutine RLTiMER for performing countdown processing of the interval timer is called in #223. Next, to explain this RLTiMER using Fig. 16-10, RLTiMFR starts processing from #301,
In #219 mentioned above, the timer counter generates a carry of 1 second, so in #302, the first second digit TR8ECO of the interval timer is subtracted by 1, and in #30
3, the first digit of the second is determined, and in the case of O, 1 is subtracted from the 10th digit of the second. Next, in #304, it is determined whether or not the microcomputer's zero flag is set as a result of subtraction from the 10th digit of the second. If it is set, the minute digit is determined in #305, and the zero flag is set as a result of calculation in #305. For example, the hour digits are decremented sequentially. Next #30
6. #307. #308, minute digit - 0, hour digit - 0 and second 1
It is determined whether it is 10 seconds before the interval timer count-up, in other words, 10 seconds before the interval timer count-up, the iNTACT subroutine activates the aforementioned iNT boat in #309. is called. For example, the camera's self-timer is 10 seconds.
If it is seconds, the self-timer starts counting by determining 10 seconds ago and setting the iN lower boat to the trubel.

Next, in #310, set 5TATtJS so that the interval timer has less than 10 seconds remaining, and in #311, set 5TATtJS
By resetting the third bit (H8B) of TUSO, the display of the data imprinting contents is returned from the display of the countdown of the interval timer. 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. #39
6, a 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 (RFC boat = H). Then #2
At #28, the RFC port is set to L, the REC mark 37 is turned off, and at #229, 5TATUS is reset to the data imprinting confirmation mark output state flag. Next, #250
It is determined whether C0tJNTO=0 (Figure 16-9), and 0
If not, check the state of the display request flag in #251 and if the request flag is set, 5 TATU is returned in #259.
The display mode is determined based on the states of SO and 5TATUS 4, and display contents according to the mode are output to the LCD driver 9. Thereafter, the display request flag is reset in #260, and the HALT state is entered in #280. On the other hand, #250
If it is C0UNTO-0, a carry of 411z occurs, and the interval timer has 1 remaining at #252.
It is determined whether the time is within 0 seconds, and if there are less than 10 seconds remaining, it is further determined in #253 whether the interval timer is counting down, and if it is not in counting operation, the timer is stopped in #254. Second digit TR3E
Increment CO by 1. Next, TR8 at #255
It is determined whether ECO has reached 8, and if it is 8, #25
6 increments the 10th digit of the timer by 1, and at the same time, #256A clears TR8ECO.

In #257, it is determined whether this TR8ECI is greater than 10. If it is greater than 10, more than 20 seconds have passed since the timer counted up (4 Hz x 80 counts), so in #258 the RTCANCM subroutine cancels the interval timer. is called. R
The TCANCM subroutine will be described later. After the interval timer mode is canceled, in #259, the mode is determined based on the values of 5TATtJsO and 5TATUS4, a display is made according to each mode, and then HALT
enter the state. If the display request flag is not set in #251, the display content t remains unchanged and enters the HALT state.

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

When the serial interrupt signal of CPU 1 is input, the program starts processing operation from 5iOiNT#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 a HALT state is entered. On the other hand, if the number of clocks is 16 and the data is valid, divide the contents of each serial buffer into 4 parts of 4 bits each in #502 and load 16 bits into each RAM area of 5ilo, 5iO1, 5i02.5i03. Then, in #503, the contents of the 5ICNT counter are cleared to 0. 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-H), the data is being corrected using the correction switch, or the PA mode reference date is set (switch 24 is pressed), and if any of these conditions is present, the lamp is prohibited from lighting. and does not turn on the lamp.

Next, in #604, it is determined whether 5TATUS 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 P HOT 0END 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 P HOT OE N D will be explained with reference to FIGS. 16-14. P HOTOE
In the ND, first, in #661, the 1st and 10th digits of seconds in the interval timer counter are cleared to O, and then #6
In step 62, the interval time setting time stored at the start is copied from the first digit of the minute to the tenth digit of the hour to the area where the actual countdown is performed. 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 5TATUS 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, after EXTDSP processing, #665 smell TSTAT
The interval timer remaining 10 seconds or less state of tJS is reset, and the flag is set to the interval timer countdown operating state again in #666. Next, #66
In step 7, it is determined whether the data imprinting mode is PA mode elapsed time display, and if it is elapsed time mode, #6
Proceeding to step 68, the 5TATUS is set to the interval timer mode, the data imprinting mode is set to the PA mode, and a flag is set so that the display is a down count display 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. Further, 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 5TAIJS 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 another word is said in #607 that it is not off mode, the process advances to #608, and the lower 3 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 the i-boat tote 1, the lamp 14 actually starts lighting from this time. #61o to 63 (1'
Set T, 5TATIJS to TRi boat = 1 output state, turn on REC mark 37 at #611, and set #61
At step 2, the RFC boat = daily output status is set and the lamp lighting process is completed. After that, return to 5iOiNT and HALT
enter the 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 the IJS is an interval timer and the data imprinting mode is the 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 5TATLJS4 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. In #623, the above-mentioned subroutine MDCLR was called to clear the display area.
Return from the AMPON subroutine. On the other hand, #
#640 if the MSB of 5TATUS4 is 01 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.
At this point, the MSB of 5TATUS and 5TATUSO are 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 of the five TATLIS flags 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
In Figure 2, if it is determined in #504 that it is not a lamp lighting signal, in #505 the PIM mark port is set to I'HJ or rLJ according to the state of the second bit of 5iD2 in #506. It is set in #507. Next #5
At step 08, the state of the first bit of 5iD2 is determined, and 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 5TATUS 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 first and tenth digits of the timer counter in #511 and set 5TATI.
Reset the wait state of JS with #512 and #513
In this step, 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 end of the wait state to the camera body, in #514, call the 1NTsTP subroutine to set the iNT boat to L, and then HALT
enter the state.

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 is reset with 5TATUS.

Next, if it is determined in #508 that the main switch 53 is off, 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 L A M P ON subroutine ( #620 in Figures 16-13). #621. #622, #623. #62
4 or #620° #516 as in the case of #640
．． #517. #518, #519. #520 or #
In the order of 516° and #530, the interval timer cancellation process is performed in two parts depending on whether the data imprinting mode is the PA mode or not. 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 1, and lamp lighting is ended. Then 5 TATU in #702
The TRi boat=H output state is cleared in S, and in #703 it is determined whether there are 10 seconds or less remaining on the interval timer. If the time is not 10 seconds or less, the RT i NT process is completed 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. PH0TO
The END subroutine is as described in the 5iOiNT process described above. Next, in #705, the first digit of the second digit of the interval timer counter and the first digit of the second
The 0th place digit is cleared to 0, and the set time of the interval timer stored at the start in #706 is copied from the 1st place digit of the minute to the 10th place of the hour to the RAM area where the time is actually counted. Next, in #707, the subroutine EXTDS performs display processing other than the normal display of data imprinting contents.
Calling P. The processing of EXTDSP is as described above.

The sequence then enters the HALT state.

Next, a method for monitoring the state of the main switch 53 of the camera when starting the interval timer will be outlined.

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 part between the iNT boat terminal of the interval timer and the 5ELFQ child 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. 50 turns on, the input of the inverter 56, which is normally pulled up by the pull-up resistor 57, goes to the [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 sampling period T.

Next, when the interval timer starts, the interval 4 frame 111 is started as shown in the timing chart (a).
1 turns on, the 5ELF terminal 55 becomes L, and then the camera side outputs a main switch status signal using a serial code by sampling the 5ELF terminal 55 for the first time. The interval timer control circuit 43 receives this and at the same time sets the iNT boat to L. This is the next 5E
The camera's self-timer will not start before the LF terminal is sampled. 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 boat to H due to the input of the serial code.
In this case, for a certain period of time (200 m5ec in the example) rL
By setting it to J level, the camera body becomes 5EL twice.
The self-timer is activated when the "L" level of the F1 child is detected. Here, the 5ELF terminal sampling period (T) of the camera body control circuit 58 is 2 Q Q 1 sec.
Needless to say, it is much shorter.

<Effects of the Invention> As explained above, when the interval timer is operating, the content display of the data imprinted on the display section becomes the timer operating status display, so that it is clearly known that the timer is operating, and the timer count Since the display switches to display the data imprinted content a certain amount of time before the start, it can cover the time required to change the display of an electro-optical device such as an LCD at low temperatures, making it possible to reliably imprint data when the shirt is released. It has the effect of

[Brief explanation of drawings]

FIG. 1 is a rear view of a camera according to an embodiment of the present invention, FIG. 2 is a sectional view of the main part of the date mechanism on the rear side, FIG. 3 is a block diagram of the electronic control circuit for its operation, and FIG. The figure is a monitor LCD segment arrangement diagram, Figures 5 to 14 are diagrams each explaining the display state of the monitor LCD, Figure 15 is a schematic diagram of a flowchart explaining the control software, and Figures 16-1 to 16-1. 16-18 are detailed views of the 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... LCD for data imprinting, 20... data imprinting mode changeover switch, 21.22.23... imprinting data and interval timer time correction switch, 24... - Elapsed darkness imprinting mode selection switch, 25... Interval timer mode switch, 35... Film counter display section, 36... Shooting status display mark on camera body, 37
...Imprint confirmation mark, 38...Display section for confirming imprint data Fig. 1 et al. 3 Fig. 2 Ka 4 Fig. '88 Fig. 10 Fig. 12 Figure 16-1 Figure 16-8 #250 Figure 16-9 ALT Figure 16-10 RLTiMER RET Figure 16- Old Figure RET RET Rohahi 1 js Figure 16-14 ET Figure 16-15 RET RETET Figure 17 Figure 16-v RT iNT ALT Figure 16-18 iNT ACT iNT 5TI) ET

Claims (1)

[Scope of Claims] 1. A release that has a data imprinting device that illuminates an electro-optical device with a light emitting means and imprints data from the electro-optical device onto a film surface, and is outputted at predetermined intervals from an interval timer circuit. In a camera that performs a shutter release operation in response to a signal, a display means is provided on the outer surface of the camera, and either predetermined imprint data or data on the operating state of an interval timer that changes sequentially is selectively displayed on the display means. A camera characterized by being configured as follows. 2. While the interval timer is operating, the operating status data is displayed on the display means, and a predetermined time before the release signal is output from the interval timer circuit, the display is switched to the predetermined imprint data, and after the shutter release is completed, 2. The camera according to claim 1, wherein the camera returns to displaying the operating state data.