JPH06289476A - Information recorder for camera - Google Patents

Abstract

PURPOSE:To provide an information recorder for a camera without requiring the resetting of stored data when the data stored in a storage device is not destructed. CONSTITUTION:The information recorder for the camera is composed of a power-on resetting circuit 1 outputting a resetting signal at the time of turning on a power source, a storage part 3 stores the stored data imprinted in a film 8, an inspecting part 2 inspecting the holding state of the stored data of the storage part 3, a default value setting part 4 setting (storing) a default value in the storage part 3, when the stored data is destructed (not held), based on the result of the inspection, a light emitting part 5 optically recording data stored in the storage part 3 on the film during feeding, a light emission inhibiting part 6 inhibiting recording by the light emitting part 5 when the stored data is destructed and a warning part 7 displaying warning when the stored data is destructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording device for recording information such as date on a film, and more particularly to an information recording device for a camera having a storage means for holding information to be recorded.

[0002]

2. Description of the Related Art Generally, there is a camera having a recording device for recording (imprinting) information such as date on a film. For example, as a first conventional example, there is a camera having a device as shown in JP-A-60-166937, which has a device for imprinting information in the vicinity of a film frame during film winding. The recording device of this camera measures the speed at which the film is fed, and flashes a point light source in accordance with the speed to copy characters and the like onto the film.

A second conventional example is Japanese Patent Laid-Open No.
In the 44329 publication, when a memory or the like for storing information is reset, unless data such as date is reset,
A mechanism is disclosed that prohibits recording of data and prevents erroneous data from being recorded.

[0004]

However, the above-mentioned first problem
In the conventional apparatus for copying information, there is no means for holding the stored data in the storage means when the battery is replaced. Therefore, when replacing the battery, if the predetermined time that the memory device of the storage means can hold is exceeded, the stored data is destroyed. Then, after the battery is loaded, if the photographing is performed without checking and resetting the stored data, the destroyed data will be imprinted.

In the second conventional example, recording of stored data is always prohibited when the battery is replaced, so recording of destroyed stored data is avoided, but when the battery is replaced (power supply is stopped. However, the stored data is not always destroyed, and the stored data is reset every reset.
That action would be useless and could just be a hassle.

Therefore, an object of the present invention is to provide an information recording device for a camera that does not require resetting of stored data when the stored data stored in the storage device is not destroyed.

[0007]

In order to achieve the above object, the present invention comprises a recording means for recording information on a film,
Storage means for holding data recorded by the recording means,
With the execution of the predetermined sequence after power-on reset,
Determination means for determining whether or not the stored data in the storage means is destroyed, and means for retaining predetermined data in the storage means when the determination means determines that the stored data is destroyed An information recording device for a camera is provided.

[0008]

The information recording device of the camera having the above-described structure is
In the case where the storage data stored in the storage means for recording on the film is destroyed by the determining means by the stop of power supply such as battery replacement, and the storage data holds a predetermined set value. Enables the recording operation on the film, and when the stored data does not hold the predetermined set value and it is determined that the stored data is destroyed (not held), the default value is set in the storage means. However, recording by the recording means is prohibited, and a warning is displayed to the user.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a schematic structure of an information recording apparatus for a camera of the present invention, which will be described. This information recording device
It is mounted on a camera and optically records (imprints) the date, time, and arbitrary characters and numbers during feeding.

This information recording apparatus has a power-on reset circuit 1 which outputs a reset signal when the power is turned on, and a storage section 3 which holds stored data to be imprinted on a film 8.
Then, the reset signal is input, and the inspection unit 2 that inspects whether or not the storage data stored in the storage unit 3 is held.
And a default value setting unit 4 for setting (storing) a default value in the storage unit 3 when the stored data is destroyed (not retained) based on the inspection result of the inspection unit 2. The light emitting unit 5 for optically recording the data stored in the unit 3 on the film, and the light emission inhibiting unit 6 for inhibiting the light emission of the light emitting unit 5 when the stored data is not held based on the inspection result of the inspection unit 2. And an inspection unit 2 and an alarm unit 7 that displays an alarm if stored data is not stored.

The storage data of the storage unit 3 is composed of date, time data and arbitrary characters and numbers, and is stored in a storage element provided in the storage unit, such as a RAM.
This RAM has a function like a capacitor that holds the value while a constant voltage is applied. Generally, the time required to replace the battery of the camera is considered to be several seconds to several tens of seconds, and in this time, the stored data in the RAM is not destroyed and is often retained. However,
If the battery is removed from the camera and the power is not supplied for a long time, the contents of the RAM will be destroyed. This holdable time differs depending on the characteristics of the RAM.

Then, when the battery is loaded into the camera again, whether or not the stored data for imprinting stored in the RAM is damaged is set in the check RAM other than the RAM for the stored data. This check RAM determines whether or not the RAM for storage data holds a certain set value.

That is, if the check RAM holds a predetermined set value (stored data), the stored data RAM
It is thought that the stored data (setting value) of
The stored data is used as it is. However, if the set value in the check RAM is corrupted, the R for stored data
The stored data of AM is also determined to be corrupted.

When this stored data is destroyed, the initial values are set in the date, hour and minute data. This initial value is
If the camera was released in 1993, the user's setting time should be saved as much as 93.01.01. Further, in order to prevent the initial value from being imprinted on the photograph, the light emission of the light emitting unit is prohibited, and a warning display indicating an abnormal state is displayed to the user. Next, FIG. 2 shows a 35 mm image recording apparatus equipped with an information recording apparatus as a first embodiment according to the present invention.
A schematic configuration of the camera will be shown and described.

In this camera, a main microcomputer (hereinafter abbreviated as M-μCOM) 11 performs sequence control of the entire camera system and various calculations. The M-μCOM 11 has a display circuit 12,
Release switch 13, setting switch 14, film sensitivity reading circuit 15, photometric processing circuit 16, storage circuit 17,
The date display circuit 18, the distance measuring circuit 19, the exposure circuit 20, the film control circuit 21, and the lens control circuit 22 are connected via a bus. The M-μCOM 11 further includes an oscillator 2 for generating an operation clock for the M-μCOM 11.
3, a date microcomputer (hereinafter abbreviated as D-μCOM) 24 and a film movement detection unit 25.

The power supply 33 is composed of M-μCOM 11 and D
-The drive voltage of the μCOM 24 is supplied. Although not shown, each circuit of this embodiment is assumed to have a voltage applied by a power supply 33. Further, the backup capacitor 32 is connected between the power source 33 and GND,
Even if the power supply 33 is turned off, t = CV / I (1)

The time t represented by the equation (5) maintains the stored values in the RAMs of the M-μCOM 11 and the D-μCOM 24. Here, C is the capacity, and I is D-μCOM24 and M-μCO.
The current consumption of M11, V is the backup capacitor 32
Is the voltage of.

Further, since the RAM itself in the D-μCOM 24 also has a capacitor function, the time during which the RAM can be held becomes short, but it is established even without the backup capacitor 32.

The display circuit 12 displays the operation mode of the camera, exposure data, and the number of photographic film frames. Further, the release switch 13 is a two-step stroke switch, and when the first step switch is turned on, distance measurement is executed,
The exposure operation is performed by turning on the second-stage switch. The setting switch 14 is used for setting the operation mode of the camera. Furthermore, the film sensitivity reading circuit 1
5 is the reading of the DX code of the film, the SV value number is M-
It is for sending to the μCOM 11.

The storage circuit 17 is a non-volatile memory for storing data to be held even when the power is off, such as the number of film frames and the operation mode of the camera. The date display circuit 18 displays date data based on the data from the D-μCOM 24.

Further, the distance measuring circuit 19 sends the data necessary for measuring the distance to the subject to the M-μCOM 11, and the exposure circuit 20 performs the functions of the diaphragm and the shutter based on the control signal of the M-μCOM 11. Lens shutter 26
Is to control. The film control circuit 21 is M-
The film 27 is automatically wound and rewound based on the control signal of the μCOM 11. The lens control circuit 22 is M-
The taking lens 28 is driven based on the control signal of the μCOM 11. Then, the subject image is formed on the film 27.

The film movement detection unit 25 outputs a pulse signal corresponding to the movement amount of the film 27 to the M-μCOM 11
And D-μCOM 24. M-μCO
The M11 controls automatic winding and rewinding based on this pulse signal.

The D-μCOM 24 is a microcomputer for controlling recording of date data on a film. This D-μCOM 24, based on the control signal of M-μCOM 11, date data 7 segment LED3
The image is recorded (imprinted) on the film using 1 and the lens 29 for imprinting. This imprinting is performed in synchronization with the pulse signal from the film movement detection unit 25.

The oscillator 30 also generates an operation clock for the D-μCOM 24. By counting this clock, the D-μCOM 24 displays “year”, “month”,
Create data for imprinting "day", "hour", and "minute". The switches 34, 35, and 36 are a mode (MOD) switch, a selector (SEL) switch, and an adjust (ADJ) switch, respectively. By operating these three switches, the photographer can select the imprinting mode and correct the imprinting data. The date display circuit 18 displays the selection state and the correction state of the imprint mode.
Is displayed on the screen.
One switch 34, 35 and 36 may be operated.

The operation of the D-μCOM 24 is performed by four control signal lines CLK, CEN, SCLK and SDATA.
Is controlled by. CLK line is M-μCOM11
Used to clock out the D-μCOM 24.

The D-μCOM 24 is M-μCOM1.
While the operation of 1 is stopped, only the counting operation of the clock needs to be performed. Therefore, the operation clock of the oscillator 30 is used to execute the minimum required operation at the minimum required speed. As a result, the current consumption of the system can be minimized. However, during the operation of the M-μCOM 11, in addition to the counting operation of the clock, it is necessary to perform the date imprinting control on the film 27, the control based on the switch operation of the photographer, and the like. Therefore, the processing speed is slow with the operating clock of the oscillator 30.

Therefore, the D-μCOM 24 is the M-μCO
It must operate using the operating clock supplied from M11. Further, by using the clock from the M-μCOM 11 as the operation clock during high speed operation, it is not necessary to have two oscillators.

The CEN line is used by the M-μCOM 11 to send a communication request signal to the D-μCOM 24. Furthermore, the SCLK line and SDATA line are
An inter-row signal line used to send serial data.

FIG. 3 shows the structure of the film movement detecting section 25 shown in FIG. In the figure, a photo interrupter composed of an infrared light emitting diode 41 and a phototransistor 42 is arranged so as to sandwich the film 27 from both sides, and a signal corresponding to the movement of the film 27 is output by moving the perforation. To do. This signal is waveform-shaped into a pulse signal by the waveform shaping circuit 43, and is further converted into a doubled pulse signal by the multiplication circuit 44. By counting this pulse signal, M-μC
The OM 11 and the D-μCOM 24 can detect the movement amount of the film.

Next, referring to the time charts of FIGS. 4A, 4B and 4C, M-μCOM11 and D-μC
The communication method of the OM 24 will be described. Here, in the data communication direction, the hatched portion is D-μCOM 24.
To M-μCOM11, the others are M-μCO
It is assumed that the communication is from M11 to D-μCOM 24.

First, communication is started when the M-μCOM 11 sets the CEN line from high level (Hi) to low level (Lo). Communication request is M-μCOM1
Since it occurs only from 1, M-μCOM11 and D-μC
As for the relationship of the OM 24, the relationship between the master and the slave is maintained.

After setting the CEN line to Lo and waiting for a predetermined time, the M-μCOM 11 outputs a control command on SDATA in synchronization with the signal of SCLK. The waiting time is determined in consideration of the processing speed of the D-μCOM 24. The control command is used by the D-μCOM 24 to identify the communication mode. Therefore,
In any communication mode, the control command is located at the beginning of communication data. The communication mode A will be described with reference to FIG.

First, the M-μCOM 11 outputs a code corresponding to the communication mode A as a control command as the first data. Next, the data including the code indicating the state of the camera is output. With this camera status data,
The D-μCOM 24 can determine whether the M-μCOM 11 is in normal operation or about to enter the standby mode.

Next, when the M-μCOM 11 completes the output of two data, the D-μCOM 24 causes the date display circuit 2 to operate.
The 6 data necessary for displaying on 8 are M-μC
Output to OM11. After this data output, the check code is output and the data output ends. M-μCOM11
Determines that the communication operation has ended by inputting the above check code, and sets the CEN line from Lo to Hi. Check code is M-μC for any communication mode
It is configured to end when the OM 11 inputs.
Next, the six data necessary for displaying as described above will be described.

Of the 6 data, the display control data is data indicating the display method on the date display circuit 28. Following the display control data, "year", "month", "day",
Data indicating "hour" and "minute" is output. The remaining five data indicate the contents of the clock counter that counts the clock reference clock generated inside the D-μCOM 24. Which of the five data should be displayed on the display circuit 28 (display mode) in the M-μCOM 11 is indicated by the upper 4 bits of the display control data. Table 1 shows the correspondence between the above data and the display modes.

[0036]

[Table 1]

This data also shows the imprinting mode when the D-μCOM 24 imprints the date data on the film 27. This display mode is "1" every time the MOD switch 34 connected to the D-μCOM 24 is turned on.
It is changed as in “2” → ... → “5” → “1”. However, when (CHECK) _RAM = "A5" h is not established when the power is turned on, the display OFF mode is set.

Next, the lower 4 bits of data will be described. Of the 6-digit display on the date display circuit 28, M-
This 4-bit data indicates which digit the μCOM 11 should blink (flashing mode). Table 4 shows the correspondence between the above data and the blinking mode.

[0039]

[Table 2]

In Table 2, it is assumed that the digit indicated by the shaded area blinks. This blinking mode is D-μCOM
Each time the SEL switch 35 connected to 24 is turned on,
It is changed as in “1” → “2” → “3” → “4” → “1”. However, when the power is turned on (CHECK) _RAM = "A
When 5 ″ h is not established, 5 is selected, all the display blinks, and the abnormal state is shown to the user.

The photographer operates the SEL switch 35 to make the desired digit blink. And also D-μ
The ADJ switch 36 connected to the COM 24 is operated. Then, the D-μCOM 24 changes the contents of the clock counter corresponding to the blinking digit, and the M-μCOM
The changed data is output to 11. Therefore, the photographer can change the date data while checking the date display circuit 28. Next, the communication mode B will be described with reference to FIG.

The M-μCOM 11 outputs a code corresponding to the communication mode B as a control command as the first data. Then, the D-μCOM 24 is added to the film 27.
Outputs 4 bytes of control parameters required when imprinting date data on top. Table 3 shows the data contents of the control parameters.

[0043]

[Table 3]

The imprinting time for one digit of the date data (that is, the light emission time of the 7-segment LED) is determined by the imprinting reference time of the control parameter 1 and the film sensitivity coefficient of the upper nibble of the control parameter 2. STDTM ×
FSK = light emission time.

The measurement start timing of the lower nibble of the control parameter 2 indicates the position where the movement speed of the film 27 is measured. When the M-μCOM 11 starts the automatic loading of the film 27, the film movement detection unit 25 outputs a pulse signal. The D-μCOM 24 starts measuring the film moving speed from the time when the number of pulse signals indicated by STRTM is input after the first pulse signal is detected. The reason why the detection of the moving speed by the amount of STRTM pulse is prohibited is that the moving speed of the film 27 is not stable in the initial state of the aud load operation.

The D-μCOM 24 detects the moving speed of the film 27 by measuring the interval between pulse signals with a timer. The value of this timer is TFV. D-μCOM
24 is a control parameter 3 after the film moving speed is detected.
Wait for the imprint delay time and then start imprinting.

Therefore, from the data set by STRTM and TMDLY, it is determined from where on the film 27 the imprint data is imprinted. Then, the interval of the imprinted numerical values is determined by the imprinting interval coefficient of the higher nibble of the control parameter 4 and the TFV. That is, the date data is imprinted one digit at a time interval determined by TFV × ITVK. The imprint format of the control parameter is used to select whether to imprint the date data from the lower digit or from the upper digit. This is a 7 segment LED31
And the moving direction of the film 27.

Next, the communication mode C will be described with reference to FIG. In this C mode, communication mode C
The control code corresponding to the M-μCOM11
Is a communication mode only output by.

Since the communication mode C is a mode which is executed immediately before the M-μCOM 11 winds the film, D
The μCOM 24 can detect the winding timing by receiving this communication. Next, the operation of the M-μCOM 11 will be described with reference to the flowchart shown in FIG.

First, after the M-.mu.COM 11 is reset by turning on the power, the initialization operation is performed (step S1). Next, the output of the operation clock necessary for the D-μCOM 24 to operate at high speed is started (step S2), two timers are set, and at the same time the timer counts (step S3).

One of the two timers is a display timer. This timer is initialized every time the photographer operates the switch of the camera. And a predetermined time (eg 3
If the timer counter overflows for 0 seconds) without any switch operation, the M-μCOM 11 is set to the standby mode in order to reduce power consumption. Another one
Two timers are 100msec timers, and D
-Used as a synchronizing signal for inputting date data from the μCOM 24.

Next, it is determined whether the display timer has overflowed (step S4). If this judgment causes an overflow and the display timer expires (YE
S), communication in communication mode A is performed (step S5). Here, the camera state data indicates that the M-μCOM 11 enters the standby mode.

Next, the clock output for the operation of the D-μCOM 24 is stopped (step S66). Then, in order to notify the photographer of the standby mode, after turning off all the displays (step S7) and setting (permitting) the interrupt (step S8), the M-μCOM 11 enters the standby mode, The operation stops. The operation may be started by the photographer operating a switch to generate an interrupt signal. Next, when an interrupt signal is generated, such a standby mode is released, and the M-μCOM 11 starts operation again from step S2.

If the display timer does not overflow in the determination in step S4 (NO), 100
It is determined whether the msec timer has overflowed (step S9). In this judgment, if it overflows and ends (YES), communication in communication mode A is performed, and the data necessary for displaying the date is input from the D-μCOM 24 (step S10), but if not completed (NO) moves to step S13 described later.

Next, based on the input data, the date is displayed on the date display circuit 28 (step S11). Further, a display corresponding to the operation mode of the camera is displayed on the display circuit 12. Next, the 100 msec timer is initialized to start counting (step S72).

By the operations of the above steps S9 to S12, the displays of the date display circuit 18 and the display circuit 12 are updated corresponding to the operation of the M-μCOM 11 and the operation of the D-μCOM 24.

Next, the state of the setting switch 14 is input (step S13), and the operation mode of the camera is determined according to the operating state of the switch (step S14). Further, the Bv value that is the brightness of the subject is input from the photometric processing circuit 16, and the Sv value that is the film sensitivity is input from the film sensitivity reading circuit 15 (step S15).

Next, the film exposure time is calculated based on the Bv value and the Sv value (step S16). Then, the state of the first-stage switch (1RSW) of the release switch 13 is determined (step S17). With this judgment, 1RS
When W is on, the display timer is initialized to prevent the standby mode from entering (step S18). However, when it is off, the process returns to step S4. Then, the distance to the subject is calculated based on the data from the distance measuring circuit 19 (step S19).

Further, the state of the second switch (2RSW) of the release switch 13 is judged (step S2).
0). If the 2RSW is on in this determination, communication in communication mode B is performed (step S21). But,
If it is off, the process returns to step S4. Here, the data necessary for determining the condition for imprinting the date is D-μCOM24.
The reason is that the D-μCOM 24 can make preparations necessary for imprinting during the exposure operation of the M-μCOM 11.

Next, the taking lens 28 is driven by using the lens control circuit 22 according to the subject distance (step S).
22). Next, the lens shutter 26 is driven and exposed using the exposure circuit 20 according to the exposure time (step S2).
3). When the exposure is completed, communication in communication mode C is performed prior to film winding (step S24). Thereafter, the film control circuit 21 winds up one frame of film (step S25), and the photographing is completed.

Next, referring to the flowchart of FIG.
The operation of the D-μCOM 24 will be described. First, D-μC
After the OM 24 is reset by turning on the power, the initialization operation is performed (step S31). Then, the D-μCOM 24 is set to the stop mode (step S32). In this stop mode, only the watch timer that counts the oscillator clock and the interrupt function can operate. When the clock timer is selected, the timer overflows at 1 second intervals (step S34). This overflow is an interrupt signal 1
Is one.

Therefore, the date data is created by counting up the five clock counters (minute, hour, day, month, year) using this interrupt signal as a reference clock.
Therefore, when an interrupt is generated by the clock timer, the clock counter is updated by the processing of steps S33 and S34. When the updating of the counter is completed, the process returns to step S32 and the stop mode is set.

Further, the M-μCOM 11 periodically communicates with the D-μCOM 24 when it enters the operating state (step S35). That is, the CEN line is set from Hi to Lo. This change in the CEN line causes a communication interrupt.

Next, processing corresponding to each communication mode is performed (step S36). Then, as the operation clock, M
-Using the clock supplied from the μCOM 11, that is, the processing speed of the D-μCOM 24 is improved (step S37).

Next, three switches (MOD, SEL, ADJ) 34, 35 and 3 connected to the D-μCOM 24.
The state of 6 is determined (steps S38, S39, S4).
0). In this determination, if any switch is operated (ON), the process corresponding to each switch is performed (step S41). When the MOD switch 34 is operated, this processing is performed by changing the imprint mode and M-μC.
The display control data sent to the OM11 is changed,
When the SEL switch 35 is operated, the display control data is changed to blink the mode to the correction state of the date data, and when the ADJ switch 36 is operated, the timekeeping corresponding to the selected digit is performed. The contents of the counter are modified.

However, if none of the switches has been operated (OFF), it is determined whether the clock timer has overflowed (step S42). When it overflows (YES), the clock counter is updated (step S43). However, when the overflow has not occurred (NO), it is determined from the state of the CEN line whether communication is requested (step S44). With this judgment, C
If the EN line is Hi (NO), the process returns to step S38, and if Lo (YES), the process corresponding to each communication mode is performed (step S45).

Next, from the code showing the state of the camera, M-
The operating state of the μCOM 11 is determined (step S4
6). In this determination, when the M-μCOM 11 is about to enter the standby mode (YES), M-μCOM
The use of the clock supplied from 11 is stopped (step S47), and the oscillator 30 is used as the operation clock to reduce the processing speed and reduce the power consumption. However, when it is not in the standby mode (NO), it is determined whether the control parameter is input in the communication mode B (step S
48). When the control parameter is input in the communication mode B (YES), the storage data for imprinting is created (step S49).

In creating the memory data for imprinting, the product of STDTM and FSK included in the control parameter is calculated for controlling the light emission time of the 7-segment LED 31. This value is set to T ON. Next, depending on the imprint mode,
The counter value corresponding to the date data to be imprinted is read out from the clock counter. This value is converted into data for lighting the 7-segment LED. This data is 8-byte data (DATA1 to DATA8) including data other than numbers. An example of data other than numbers is shown in FIG. When the image of September 15, 1990 is imaged as shown in the figure, the part indicated by "s" in the figure is also treated as data for lighting the LED.

Next, in the communication mode C, M-μCOM
It is judged whether 11 is a request for imprinting (step S50). If there is a request (YES), the subroutine "imprint" is executed (step S51). next,
The subroutine "imprinting" will be described with reference to the flowchart shown in FIG. First, it is determined whether or not the imprinting prohibition mode is set (step S61). If the determination is in the prohibit mode (YES), the process returns.

Next, when the winding of the film 27 is started under the control of the M-μCOM 11, the film movement detecting section 25 outputs a pulse signal. Prior to detecting the film speed, the pulse signal is skipped by a predetermined number (STRTM) (step S62).

Then, in order to detect the film moving speed, after the timer counter is initialized, counting up is started (step S63). Thus, it waits until the next pulse signal is output (step S64). When the pulse signal is detected in step S64 (Y
ES) and the value of the timer counter is fetched as TFV (step S65). This TFV becomes time data corresponding to the moving speed of the film 217.

Next, this TFV is multiplied by a coefficient (ITVK) to obtain TINT (step S66). This TIN
T determines the interval of the numerical values (or symbols) to be imprinted.

Next, the standby time is set (steps S67 and S68) before the LED is turned on, and the predetermined time (TM) is set.
Imprinting is delayed during DLY). Next, the data for lighting the 7-segment LED is output from the output port of the D-μCOM 24, and the imprinting for one numeral is started (step S68).

After initializing the timer counter,
The counter starts counting up (step S70) and stands by for the imprinting time (T ON) (step S71). Next, the LED is turned off, and the imprinting for one number is completed (step S72).

Next, by waiting until the timer counter = TINT, the interval up to the next number is formed (step S73). However, to be exact, the timer counter =
It is TINT-T on, but there is no problem because TINT >> T on.

After waiting, it is determined whether or not the imprinting of bytes of data is completed (step S74). If the imprinting of the byte data is completed by this determination (Y
ES) and return. Steps S69 to S74 above
By the process of, the data from DATA1 to DATA8 is imprinted in order. Next, the contents of the initial setting in step S91 shown in FIG. 6 will be described with reference to the flowchart shown in FIG.

First, it is determined whether or not (CHECK) _RAM = "A5" h (step S81), and (CHECK) _RAM =
If “A5” h (YES), step S8 described later.
The process moves to 4 without any processing. In other words, if the check code (CHECK) _RAM keeps "A5" h, the date and hour data is also backed up C232.
Therefore, it is considered that the value before the power is turned off is held.

However, (CHECK) _RAM = "A5" h
If not (NO), the date and hour data may also be corrupted, and the initial value is written (step S8).
2). Specifically, "A5" h is rewritten in the (CHECK) _RAM for the next time when the power is turned on and the reset is performed.

Next, (date data) _RAM 93.1.
Write 1 (in the case of a camera released in 1993, if it is released in 1994, use the data of 94.1.1),
(Hour / minute data) Write 00:00 to _RAM (step S
83).

Further, the display OFF mode is selected so as not to copy the initial value data (step S8).
4) Then, all the display blinks so that the user can know the abnormal state (step S85). However, since the display is in the OFF mode, the display circuit 28

[0081]

[Table 4]

It blinks like. From this all blinking state, by operating the MOS switch 34
When the OD switch 34 is pressed once, the date display mode of "2" shown in Table 1 is set, and the initial value set in S83 is displayed.

As described above, the information recording device of the camera of the present invention is
If the battery of the camera is removed for a few tens of seconds or less, the user does not have to reset the stored data to be recorded on the film when reloading the battery, and this configuration can be realized at low cost and space saving. .

If the battery has been removed for a long time, the state of the stored data is confirmed, and even if it is necessary to reset the data, the initial data is set in the year when the camera is released, and I tried to save the trouble of resetting even a little.

Further, by setting the imprinting OFF mode so that the destroyed memory data is not recorded on the film and displaying a warning so that the user can know the abnormal state, accurate imprinting of the memory data is guaranteed. It
Further, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and applications can be made without departing from the scope of the invention.

[0086]

As described above in detail, according to the present invention, it is possible to provide an information recording device for a camera which does not require resetting of stored data when the stored data stored in the storage device is not destroyed. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an information recording device for a camera of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a camera equipped with an information recording apparatus as a first embodiment according to the present invention.

FIG. 3 is a diagram showing a configuration of a film movement detection unit shown in FIG.

FIG. 4 is a time chart for explaining a communication system of M-μCOM and D-μCOM shown in FIG. 1.

5 is a flowchart for explaining the operation of the M-μCOM shown in FIG.

6 is a flowchart for explaining the operation of the D-μCOM shown in FIG.

FIG. 7 is an example of stored data recorded on a film.

FIG. 8 is a flowchart for explaining an operation of a subroutine “imprint”.

9 is a flow chart for explaining the contents of "initial setting" shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Power-on reset circuit, 2 ... Inspection part, 3 ... Storage part, 4 ... Default value setting part, 5 ... Light emission part, 6 ... Emission prohibition part, 7 ... Warning part, 8, 27 ... Film, 11 ... Main micro Computer (M-μCOM), 12 ... Display circuit, 13 ... Release switch, 14 ... Setting switch, 1
5 ... Film sensitivity reading circuit, 16 ... Photometric processing circuit, 1
7 ... Memory circuit, 18 ... Date display circuit, 19 ... Distance measuring circuit,
20 ... Exposure circuit, 21 ... Film control circuit, 22 ... Lens control circuit, 23 ... Oscillator, 24 ... Date microcomputer (D-.mu.COM), 25 ... Film movement detection section, 26 ... Lens shutter, 28 ... Photographing lens , 29 ...
Imprinting lens, 30 ... Oscillator, 31 ... 7-segment LED, 32 ... Backup condenser, 33 ... Power supply,
Mode (MOD) switch ... 34, Selector (SEL)
Switch ... 35, 36 ... Adjust (ADJ) switch.

[Procedure amendment]

[Submission date] August 3, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Change

[Correction content]

Next, the clock output for the operation of the D-μCOM 24 is stopped (step S 6 ). Then, in order to notify the photographer of the standby mode, after turning off all the display (step S7) and setting (permitting) the interrupt (step S8), the M-μCOM 11 enters the standby mode, The operation stops. The operation may be started by the photographer operating a switch to generate an interrupt signal. Next, when an interrupt signal is generated, such a standby mode is released, and the M-μCOM 11 starts operation again from step S2.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0055

[Correction method] Change

[Correction content]

Next, based on the input data, the date is displayed on the date display circuit 28 (step S11). Further, a display corresponding to the operation mode of the camera is displayed on the display circuit 12. Then, to start the counting 100msec timer is initialized (step S 12).

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0071

[Correction method] Change

[Correction content]

Then, in order to detect the film moving speed, after the timer counter is initialized, counting up is started (step S63). Thus, it waits until the next pulse signal is output (step S64). When the pulse signal is detected in step S64 (Y
ES) and the value of the timer counter is fetched as TFV (step S65). This TFV becomes time data corresponding to the moving speed of the film 27 .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0076

[Correction method] Change

[Correction content]

After waiting, it is determined whether or not the imprinting of bytes of data is completed (step S74). If the imprinting of the byte data is completed by this determination (Y
ES) and return. Steps S69 to S74 above
By the process of, the data from DATA1 to DATA8 is imprinted in order. Referring now to the flowchart shown in FIG. 9, describing the details of the initial setting in step S 31 shown in FIG.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0077

[Correction method] Change

[Correction content]

First, it is determined whether or not (CHECK) _RAM = "A5" h (step S81), and (CHECK) _RAM =
If “A5” h (YES), step S8 described later.
The process moves to 4 without any processing. In other words, when the check code (CHECK) _RAM keeps "A5" h, it is considered that the date and hour data are also held at the values before the power was turned off by the backup C32. is there.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0082

[Correction method] Change

[Correction content]

It blinks like. From this total blink, by operating the MO D switch 34, omission, M
When the OD switch 34 is pressed once, the date display mode of "2" shown in Table 1 is set, and the initial value set in S83 is displayed.

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

Claims (5)

[Claims] 1. A recording means for recording information on a film, a storage means for holding data recorded by the recording means, and a predetermined sequence after power-on reset,
Determination means for determining whether or not the stored data in the storage means is destroyed, and means for retaining predetermined data in the storage means when the determination means determines that the stored data is destroyed An information recording device for a camera, comprising: 2. The information recording apparatus for a camera according to claim 1, wherein the operation of the recording means is prohibited when it is determined that the held data is destroyed. 3. A warning operation is performed when it is determined that the held data has been destroyed.
The information recording device of the camera described in 1. 4. The recording means is a means for optically imprinting information on a film.
The information recording device of the camera described in 1. 5. The information recording of the camera according to claim 1, further comprising counting means for counting time, wherein the storage means successively holds the count value of the counting means. apparatus.