JP2732617B2 - Data recording device and camera - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording device for recording data such as a date and a message on an image recording medium such as a film, and a camera to which this type of device is applied. It is.

[Related Art] Many recent cameras have an imprinting device that can imprint a date of photographing on a film, for example.

Further, a camera has been proposed which can imprint not only date data but also other information.

 For example, it is as follows.

A device that prints numbering data such as film counter information. A device that can print the elapsed time from a reference date. A device that prints arbitrarily configurable messages using a keyboard or the like mounted on a camera. PROBLEM TO BE SOLVED] When considering cameras having various printing modes as described above, it is essential that the operator can arbitrarily select a predetermined printing mode as necessary. Usually, this type of camera is provided with means for selecting (switching) a printing mode, for example, a button switch or a stroke switch.

By the way, the present inventor has studied the practical configuration of such a camera, particularly from the viewpoint of the usability of a photographer who handles the camera. In the method of the above-mentioned method, there is a complicated operation for inputting each character of a message, and it is difficult to consider that the frequency of actual use is not so high. The mere provision of, there is a high possibility that a photograph contrary to the photographer's intention is likely to be taken unless the selected state of the imprint mode is checked every time photographing is performed. This is considered to be a common mistake because the mode is actively selected when imprinting a message.However, the release operation is left alone because it is not actively used for the immediately following shooting operation. This is because the system does not take into account the psychological aspects of doing so. In addition, there are cases where only one message is to be imprinted, and cases where the same message is to be imprinted on a large number of continuous photos. It is hard to say that it has been done.

The present invention has been made in view of the circumstances described above, and provides a data recording device that can prevent data recording that is not intended by a user, and a camera to which this type of device is applied. What you want to do.

[Means for Solving the Problems] In order to achieve the above object, according to the present invention, in a data recording device applied to a camera, a first data recording mode and a second data recording mode are used for an image recording medium. Data recording means capable of recording data, and when the operation of the shutter release member of the camera or the operation for replacing the image recording medium or the operation of the main switch of the camera is performed,
When the data recording means is set to the second data recording mode, the data recording means is switched to the first data recording mode, and when the data recording means is set to the first data recording mode, A control unit for maintaining the data recording unit in the first data recording mode is provided to prevent data not intended by the user from being recorded on the image recording medium.

Further, according to the present invention, in a camera to which a data recording device capable of recording data on an image recording medium in the first data recording mode and the second data recording mode is applied, operation of a shutter release member of the camera or replacement of the image recording medium is performed. When the data recording unit is set to the second data recording mode when the operation for the camera or the main switch of the camera is performed, the data recording unit is set to the first data recording mode. And control means for maintaining the data recording means in the first data recording mode when the first data recording mode is set, so that data not intended by the user is stored in the image recording medium. It is prevented from being recorded.

Embodiment An embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, 1 is a microcomputer (μ-COM) for controlling a sequence, 2 is a ROM for storing programs and character font patterns, 3 is a RAM for storing data, 4
Is a data bus, 5 is an address bus, and 6 is a control bus. Reference numeral 7 denotes a battery that supplies power to the electric system, 8 denotes a voltage detection circuit that detects the voltage of the battery and generates a reset pulse when the battery is turned on or when the battery voltage falls below a predetermined level. Oscillator (OS) that generates a pulse that serves as a reference for watches and calendars
C) and 10 are frequency dividers that divide the output of the oscillation circuit 9 to generate pulses every day, 11 is a day counter, 12 is a month counter,
Reference numeral 13 denotes a year counter which is connected to each carry-in and out so as to function as an automatic calendar together with a month-end correction circuit (not shown).

Each output is a BCD x 2 digit counter signal for each port of the microcomputer 1 (DAYL, DAYH, MTHL, MTHH, YERL, Y
ERH) and to the LCD driver 14. Here, L and H indicate the first digit and the tenth digit, respectively.

Reference numeral 15 denotes an LCD display unit which is arranged on the upper surface of the camera or the like and displays a confirmation of an imprinted calendar and a message selection state. As shown in an enlarged manner in FIG. 3, the calendar display units (15a, 15b, 15c , 15e) and message selection status display 1
It consists of 5d.

Reference numeral 16 denotes a camera control circuit, which controls a series of camera sequences such as AE, AF, shutter, winding, and rewinding in accordance with a known method by pressing a shutter release switch (not shown). Reference numeral 17 denotes a driver of a wide motor 18 that winds the film after the photographing operation is completed according to an instruction from the camera control circuit. Reference numeral 19 denotes a message selection switch for switching the content of the message to be printed on the film, and reference numeral 20 denotes a quinary message counter for counting the mode of the message. Each time the message selection switch 19 is pressed, the count state is advanced by one. ing. This count value is input to the input port MES of the microcomputer 1 as 3-bit binary data, but is also input to the LCD driver 14 for displaying the message selection status.

Reference numeral 21 denotes an imprint mode changeover switch for switching whether the data to be imprinted is a calendar or a message.
The state is set to the input port (CAL) of the microcomputer 1 and to L
The data is also input to the CD driver 14.

Reference numeral 22 denotes a D-flip-flop (hereinafter abbreviated as DF / F) for monitoring the input of the imprinting block, and reference numeral 23 denotes a photo-interrupter for detecting a film feed pulse described later.
a is an LED component, and 23b is a phototransistor.

24 is a driver for the LED 23a, 25 is a rotating plate that generates a pulse that rotates in conjunction with film feeding, 26 is a photo interrupter pulse detection circuit that converts an AC signal output from a photo interrupter into a logic signal, and 27 is a pulse detection circuit 26 Is a pulse generation circuit that outputs a one-shot pulse for a predetermined time in response to the input of a falling pulse. The predetermined time is determined by, for example, 3-bit film sensitivity information input from the camera control circuit 16.

28 is an inverter, 30 to 38 are 3-input AND gates, 39 is 8
Channel LED driver, 40-48 is imprint dot LE
D and 49 to 51 are pull-up resistors of each switch. 57-5
Reference numeral 9 denotes a correction switch corresponding to each digit of the calendar, and reference numerals 60 to 62 denote correction pulse generation circuits for inputting a correction pulse to each counter in response to the input of those switches.

FIG. 2 is a diagram schematically showing a dot scan printing system, and the same components as those in FIG. 1 are denoted by the same reference numerals. 40 to 48 are LEDs arranged in a line, 51 and 53 are rollers that rotate simultaneously with the movement of the film, 52 is a film take-up spool, 54 is a patrone 55 is a projection lens, and 56 is a film. Reference numeral 25 denotes a pulse generating rotary plate integrally connected to the roller 51, and reference numeral 23 denotes a transmission type photocoupler.

Returning to FIG. 1, reference numeral 63 denotes a DF / F configured so that the output is inverted each time the mode changeover switch 21 is pressed, and the output is input port iPCAL of the microcomputer 1 (CAL in the figure).
) To control the printing mode.

Reference numeral 64 denotes an AND gate, 65 denotes an OR gate, and 66 denotes a one-shot pulse generation circuit which receives a control signal of a hoist motor of the camera and outputs a pulse for a predetermined time in response to a falling edge of the signal.

In this embodiment, the AND gate 64 is provided as a three-input type, and its input is canceled to cancel the Q output of the mode changeover switch 21, the output of the one-shot pulse generation circuit 66, and the mode automatic return operation. Normally (when the cancel switch 80 shown in FIG. 1 is off) as the output from the switch 80, the DF / F 63 is output by the output of the one-shot pulse generation circuit 66 which is output when the drive of the wind motor 18 stops. Are reset, but when the cancel switch 80 is turned on, the DF / F 63 is not reset by the input of the one-shot pulse generation circuit 66. With this configuration, in the present embodiment, normally, the mode for imprinting message data (second mode) is reset every photographing operation and returns to the standard mode for imprinting date data (first mode). When the cancel switch 80 is pressed (on), the same message data is repeatedly printed. 81 is a pull-up resistor.

FIG. 3 is a view showing an LCD display unit and switches installed on the outer surface of the camera, wherein 15a is a calendar year-digit display unit, and 15b and 15c are calendar month-date and day-digit display units, respectively. 15d-1 to 15d-5 are message type display segments that are turned on in the message imprint mode. To the right is the message content (“HA
A short sentence such as "PPY BIRTHDAY'88") is printed, and by instructing one of them to light up, the user can confirm which message is currently selected and which is to be imprinted on the film. I have.

Next, the switches around the LCD display will be described.

Reference numeral 19 denotes a printing mode switching (date / message switching) switch for selecting a printing mode.
This is a message selection switch that is enabled when the message mode is selected by 21. Each time the switch is pressed, five types of messages are sequentially switched. At the same time, arrow segments 15d-1 to 15d-5 are displayed for the LCD display. Are sequentially switched on and turned on so that the currently selected message can be confirmed. Imprint mode changeover switch 21 of this example
Can be switched to a calendar and a message each time it is pressed.
Is selected (the state shown in FIG. 3), the rightmost 15d
All of the arrow segments -1 to 15d-5 are turned off. Conversely, when a message is selected, the calendar display sections 15a to 15c and 15e are turned off, respectively. 57 to 59 are switches for correcting the calendar for imprinting the date.
It has a configuration that can be directly modified corresponding to each digit of "month" and "day".

FIG. 4 is a timing chart showing the timing of film feeding pulses and font output at the time of imprinting.

FIG. 5 shows a specific example of imprint data as an example. In the case of displaying "... C, B, A" on a photo print (see FIG. 5 (B)), the output order of fonts is shown. FIG. As shown in the figure, in this embodiment, the patrone of the camera, the take-up spool (both are not shown) and the dot
Depending on the position of the LED, the font output is the character "A" at the right end in FIG. 5 (B) of the character string to be copied.
The font data A0 is sequentially output from the right end (the left end in FIG. 5A) of (DiGi0). The left end of FIG. 5 (A) shows the port of the microcomputer to which the data in the case of performing the printing in the font of (9 × 7) dots is output. The four bits D0 to D3 from the bottom are the OPLEDL port,
4 bits of D4 to D7 are CPLEDM port, 4 of the highest D0 to D3
The OPLEDH port is assigned to each of the bits (D1 to D3 are unused).

FIGS. 6 and 7 are diagrams showing a method for producing a (7 × 5) dot font pattern from a (9 × 7) dot font with a change in film screen size.
In FIG. 5 (A), if the vertical direction is a row and the horizontal direction is a column, the reduction in the row direction is a part of the data.
(2 ² ) and LEDBMD6 (2 ² ) are extracted and the remaining data is packed in the lower order. The reduction in the column direction is realized by skipping a predetermined address (A1 and A5 in the example of FIG. 7) when the font is output to the port.

FIG. 8 shows a part of the font data stored in the font data table in the ROM. The address is represented by 12 bits, and the data is described in units of 8 bits. The bit corresponding to the black portion becomes “1”, and the other bits become “0” data. That is, H'7A0 to H'7AF are fonts of "A", H '
7B0-H'7BF is "B", H'7C0-H'7CF is "C", H'7D
0-H'7DF is "D" ..., H'860-H'86F is "M", H'8B
0 to H'8BF indicate font data of "R", and H'8F0 to H'8FF indicate font data of "V".

9 to 13 are a flowchart and a chart for explaining the sequence of the program. Table 1 below shows the input / output ports of the microcomputer and the number of bits and their contents. Table 2 shows the data memory in RAM and its contents.
The table shows the font data addresses in the ROM and the fonts stored therein.

The stored fonts are numbers 0-9, alphabets AZ,
There are a total of 46 symbols with 10 symbols.

Table 5 is a table showing the value of the message counter and the contents of the message corresponding to the count value.

When the power is turned on to the camera in the above configuration, the reset pulse is output from the voltage detection circuit 8. When this reset pulse is input to the microcomputer 1, the sequence starts from START in FIG. The reset pulse is also input to the frequency dividing circuit 10, year, month and day counters and 11 to 13 message counters 20 at the same time.

First, in step # 001, the memory in the RAM area is cleared, and in steps # 002 to # 004, 0 is output to the dot LED lighting control ports (CPLEDL to H), and step # 00
5 resets the DF / F of the imprint pulse detector.

Next, at step # 007, the process waits for the data imprint to be enabled. Now, when the film is loaded in the camera and the release switch (not shown) is pressed to end the photographing, in FIG. 1, the camera control circuit 16 outputs a signal for driving a wind motor for film winding, and the film is wound. However, this motor drive signal is input into the microcomputer 1 from the iPDEN port, iPDEN = 1, and the sequence proceeds to step # 008. In step # 008, the imprint mode is determined, and the date calendar mode is determined, that is, (iP
If CAL = 1), the address of the font for imprinting only the calendar data is set in step # 011. Here, first, the first digit (DAYL) of the calendar date is loaded into the middle address (PD0M) for the font instruction of the least significant digit (DiGiT0) for imprinting, and 7 is loaded into the upper address. Referring to the ROM font table (Table 4), if the upper address is 7, the same font as the value of the middle address is stored. In this case, the font specification of the least significant digit is the first digit of the calendar date digit. (DAYL) value. Similarly, the next digit after imprinting is the value of the tenth digit (DAYH) of the calendar month digit. Next, the font designated as the third digit (DiGiT2) from the least significant digit of the imprint is a blank font because the middle address (PD2M) is 5 and the upper address (PD2H) is 9 (see Table 4). Similarly, the first digit of the month digit for DiGiT3, the tenth digit of the month digit for DiGiT4, the first digit of the sixth digit for DiGi6, the tenth digit for the seventh digit of DiGiT7, DiGiT8
Includes “,” (single quotes), DiGiT5 and
For DiGiT9 to DiGiT1, a blank font address is loaded.

On the other hand, in step # 008, the mode is determined to be the message mode (iPCAL
= 0), the type of the message to be imprinted is determined by determining the value of the message counter 20 in steps # 009 to # 010, and the address for designating the font is set. FIG. 10 shows each copy message and the font address set in each copy digit. In this example, assuming that the content of the message counter is 0, for example, the message “HAPPY BIRTHDAY” and the “year”
Data is imprinted.

That is, fonts (yL and yH) of the first and tenth digits of the year at that time are set in DiGiT0 and DiGiT1,
GiT2 is “,” (single quote), DiGiT3 ~ Di
GiT17 has ( Indicates a blank) and the address of the font is loaded. In this case, the font is set from the last character as described above. (Note: If the year of the calendar is 88, yL = yH = 8) The font is specified so that it is displayed. Similarly, if the message counter is 1, If the counter value is 2 If the counter value is 3, If the counter value is 4, Is imprinted. Here, it can be understood from FIG. 10 that when the value of the counter is 2, 3, or 4, the "year" of the date data is not imprinted.

Next, when the mode is determined and the font is designated as described above, the DATSET subroutine is called in step # 012, and the actual font is output.

The DATSET subroutine is described with reference to the flowchart of FIG.

First, in step # 100, the first digit to be imprinted (the least significant digit on the print): the middle digit of the address for specifying the font of DiGiT0; 12 bits that specify the address of the contents of PD0M when referencing the data table in ROM (4 bits x 3)
The middle digit of the counter; load into DACM.

Next, in step # 101, the FNTOUT subroutine for actually outputting the font is called after loading the contents of the upper digit of the font designation address; PD0H into the upper digit of the data counter; DACH. Here, temporarily, DiGiT0
When the font of "A" is output, DACM and DACH are set to DACH = 7 and DACM = A, respectively.

Next, the FNTOUT subroutine will be described with reference to the flowchart of FIG. First, the lower digit (DACL) of the data counter is set to 0 in step # 200, and the film screen size is determined in # 201. D
-Reset of F / F.22 is released by setting OPLARST = L. Next, in step # 203, the data counter; the lower 4 bits (D
ACL) to the OPLEDL port. In other words, DiGiT0 mentioned above
In the case of outputting "A", the content of the data counter; DAC is H'7A0, so that the lower 4 bits of the data of the ROM address are B'1111 ("A" at the upper left of FIG. 8). Font diagram).

Next, in step # 204, the upper 4 bits (DACH), which is the content of the data stored in the ROM address specified by the data counter, are output to the OPLEDH port. (In the case of the above-mentioned font "A", it becomes B'0011). Step # 20
At 5 the lower digit of the data counter; the lower 4 bits of the ROM address specified by the data counter with 8 added to the DACL are output to the OPLFDH port. DAC = "A"
H'7A8 and the lower 4 bits become B'0000.
In the embodiment, the first three bits are connected to the output port, but the steps # 203, # 204, # 206
LED lighting control output ports (OPLEDL to D
PLEDH) is in a state where font data is output. In the sequence, 7 is subtracted from DACL in step # 207, and the input of the rising edge of the imprint pulse is waited in step # 208. When the rising edge enters the clock of DF / F22, its Q output becomes H (iPEDECT = H), and the process proceeds to step # 209 to reset DF / F. Here, it is the actual LED lighting time, but as shown in the timing chart of FIG. 4, LED lighting is 9 bits of font output (LEDL0-3, LE0)
DM0 ~ 3, LEDH0) and the logical sum of the inverted signal of the imprinting pulse and the imprinting enable signal (see FIG. 1). Is limited to the low level period of the imprint pulse (▲ ▼). In step # 208 and DF / F.22, the imprint pulse (▲
The rising edge of ▼) is detected in order to detect the end of LED lighting of one line of the font and to set the next font data.

Next, in step # 210, it is determined whether or not the lower digit of the data counter; DACL has become 8, and if it is 8 or less, step # 20 is performed again.
Perform the processing from 1 onwards. That is, in the previous flow, 8 is added to the lower digit of the data counter; DACM is added (# 205), and 7 is subtracted (# 20) so that the output of the next line of the font is output thereafter.
7) As a result, the result is +1 and the data counter; DA
C will specify the data in the next column. In the case of "A", (DAC) = H'7A1.

When the output of the last column is completed (H'7A7 and H'7AF in the case of "A"), the DACL becomes 8 and the routine branches at step # 210 to terminate the subroutine FNTOUT and return. On the other hand, when the screen size is determined to be the half size in step # 201 (FiLS = L), the processing is slightly changed to step # 21.
It is the same until the reset of the DF / F for imprinting pulse detection is canceled in 1; however, if the lower digit of the data counter is 1 in step # 212, the DACL is set to 1 in step # 217.
By incrementing, and skipping when DACL is 1 or 5, A1 is changed from (9 × 7) font
Two rows of A5 are omitted, and two rows become five rows (see FIG. 7B). Then, in steps # 213 and # 215, the data of the ROM address specified by the data counter is not directly output to the LED lighting output ports (OPLEDL to M), but is transferred to the buffer RAM; LEDBL, LEDBM, LEDBH and # 218.
Calls the subroutine DATSHFT to shift the data partially.

This DATSHFT subroutine is described with reference to FIG. That 2 ^3-digit content of LEDBL at step # 301 (in FIG. 13 (LEDBL) ₃ and the display: hereinafter the same) was determined and transfer that value to 2 ² digits (# 302,30).

Step # 304 determines 2 ⁰ digit LEDBM in to LEDBL the value
Transfer to a 2 ^3-digit (# 305 and 306).

Step # 307 determines 2 ² digit LEDBM in to LEDBM the value
Transfer to a 2 ⁰ digits (# 308 and 309).

Step # 310 determines 2 ^3-digit LEDBM in to LEDBM the value
Transfer to a 2 ^1-digit (# 311, 312).

Step # 313 determines 2 ⁰ digit LEDBH in to LEDBM the value
Transferred to two ^2-digit (# 314 and 315).

Step # 0 2 ³ digit LEDBM at 316, by the H'0 the LEDBH in # 317 (see above FIG. 6), (9 × 7)
The data for two lines D2 and D6 are extracted from the font and shifted to the lower digits, and the number of lines becomes seven (see FIG. 7B).

When the data shift process is completed, the data shifted in steps # 219 to # 221 is LE
It is output to the D lighting output port (OPLEDL to OPLEDH). Subsequent processing is equivalent to the case of full size (#
208 to # 210 ...). When the printed font for one character has been output in this way, DACL becomes 8. Therefore, the FNTOUT subroutine is exited from step # 210, and the font of the next character (DiGiT1) is output from step # 103. After that, the output of each character is the same as in the case of DiGiT0, and the font is actually output to the LED output port by setting the font start address of each character in the DATSET subroutine and calling the FNTOUT subroutine. I have.

Here, since the last row of the font of each character, (A7) contains a blank pattern for one row (in the case of DACL = H'7 or H'F), there is one dot blank between each printed character. Will be entered.

When the output to the last character (DiGiT17) is completed, the process returns from the DATSET subroutine, waits for the wind motor 13 to stop at step # 013 in FIG. 9, and disables imprinting. Waiting for imprinting is made (see step # 007), and one imprinting sequence ends.

Since (7 × 5) dot fonts are created from (9 × 7) dot fonts, it is necessary to select a font pattern so that there is no inconvenience in terms of shape and design as long as data is omitted and compressed using a fixed pattern. Needless to say, there is.

In the embodiment shown in FIG. 3, when the imprinting mode is the calendar, only the order of "year, month, day" is prepared, so the year digit display section 15a, the month digit display section 15b, the date digit display section 15c and the year Although only the single quotation mark 15e indicating the display is provided, in order to display English month and time or the like, the number of segments may be increased. In the apparatus of this embodiment, when the above operation is set to the message mode (second mode), the apparatus automatically sets the date data imprint mode (first mode) after the camera is released. There is a feature that returns to.

That is, in the apparatus of this example, as described above, a falling edge is input to the one-shot pulse circuit 66 at the timing when the winding operation ends after the camera is released. Since the one-shot pulse circuit 66 generates a pulse for a predetermined time, the cancel switch 80 is turned on at this time (normal time).
Then, if the Q output of the DF / F 63 is H, the output of the OR gate 65 is also H and the DF / F.63 is reset. When reset, the output of DF / F.63 becomes H.
The iPCAL input becomes H, and the imprint mode becomes the date mode. Since this output is also input to the LCD driver 14, the external LCD display is also switched to the contents corresponding to the mode.

However, if the cancel switch 80 is turned off (the mode automatic return is cancelled), the above-described automatic return is not performed, and a plurality of images can be taken with the same message imprinted. Note that the cancel switch 80
May be linked so as to be in a normally-on state when power is turned on / off or when a film is exchanged.

FIG. 14 shows a second embodiment of the present invention, in which automatic return to the date data imprinting mode (first mode) is performed.
The configuration is shown for a case where the operation is linked to the operation of opening the back cover of the camera. That is, 66 'is a switch that turns off when opened and turns on when closed in conjunction with the back of the camera, 67 is its pull-up resistor, and 68 is a one-shot pulse generation circuit that generates a pulse for a predetermined time when a falling edge is input. It is.

Even with the device having such a configuration, if the Q output of the DF / F 63 is H (message imprinting mode), the DF / F 63 is reset by opening the back lid and returns to the first mode.
Other configurations are the same as those in FIG.

FIG. 15 shows a third embodiment of the present invention, in which automatic return to the date data imprinting mode (first mode) is performed.
The configuration is shown in a case where the main switch of the camera is linked with an on-off operation.

That is, reference numeral 69 denotes a main switch for controlling the operation of the electric system of the camera, which is configured to be operable when turned on and to be disabled when turned off. Reference numeral 70 denotes a switch pull-up resistor, and reference numeral 71 denotes a one-shot pulse circuit that outputs a pulse for a predetermined time when a rising edge is input. In addition,
The state of the main switch is input to the camera control circuit 16 from the MAiNSW input terminal. Also in the device having the configuration of this example, the DF / F.63 is reset by the output pulse of the one-shot pulse circuit 71 when the main switch 69 is turned on and off, and the mode automatically returns to the first mode. Other configurations are the same as those of the second embodiment.

FIG. 16 shows a fourth embodiment which is still another embodiment of the present invention. When returning to the date data imprinting mode (first mode), when the release is made, the back lid is opened,
The configuration is shown for three cases where the main switch is operated from ON to OFF.

That is, reference numeral 72 denotes a three-input OR gate. When H is input to any of these inputs, the DF / F 63 is reset, and in the case of the message mode, automatically returns to the date mode.

In any of the embodiments 2 to 4, it goes without saying that a cancel switch for canceling the automatic return from the second mode to the first mode may be provided in the same manner as in FIG.

(Correspondence between Claims and Embodiment) LED 40 to 48, LED driver 39, microcomputer 1 in embodiment
The output ports LEDL0-3, LEDM0-3, and LEDH0-3 of the data output means are referred to as "data recording means", the date imprinting mode is "first data recording mode", and the message imprinting mode is "second". In the "2 data recording mode", the pulse signal generation circuits 66, 68, 71, the DF / F 63, and the microcomputer 1 (the operations of # 008 and # 011 in FIG. 9) correspond to the "control means", respectively.

[Effects of the Invention] As described above, according to the present invention, when the operation of the shutter release member of the camera, the operation for exchanging the image recording medium, or the operation of the main switch of the camera is performed, the first operation is performed. Since the data recording mode is set, it is possible to prevent data not intended by the user (data recorded in the second data recording mode) from being recorded on the image recording medium. Unnecessary messages such as imprinting unnecessary messages on undesired frames and viewing the print after shooting can be eliminated, thereby eliminating the regret of failure.

[Brief description of the drawings]

Drawing 1-Drawing 13 are figures for explaining one example of the present invention, and Drawing 1 is the whole circuit diagram of the device of the example of the present invention,
FIG. 2 is a perspective view showing an outline of an operation of imprinting data on a film by using a dot matrix, FIG. 3 is a detailed view of a liquid crystal display unit provided on the upper surface of the camera and its surroundings, and FIG. Operation timing chart, 5th
FIG. 5A is a diagram for explaining the output order of fonts, and FIG.
FIG. (B) is a diagram showing a photograph in which data such as characters are imprinted, FIG. 6 is an explanatory diagram in the case of shifting font data, and FIG. 7 is (7 × 7) font from (9 × 7) font. 5) A diagram for explaining a method of creating a font, FIG. 8 is a diagram showing a description state of a font data table in a ROM, and FIG.
FIGS. 11 and 13 are flowcharts showing the operation procedure of the embodiment of the present invention, and FIG. 10 is a diagram showing correspondence between each of a plurality of message modes and store data. FIG. 14 to FIG. 16 are overall circuit diagrams showing the configuration outline of Examples 2 to 4 of the present invention, respectively. 1 ... microcomputer, 2 ... ROM 3 ... RAM, 4-6 ... data bus 7 ... battery, 8 ... voltage detection circuit 9 ... oscillator circuit, 10 ... divider circuit 11-13 ... date , Month, year counter 14 LCD driver, 15 LCD 16 Camera control circuit 17 Motor driver 18 Hoisting motor 19 Message switch 20 Message counter 21 Print mode selection switch 22 DF / F (D flip-flop) 26 Interrupter detection circuit 30-38 AND gate 40-48 LED 57-59 Calendar correction switch DCLK Print pulse

Claims (2)

(57) [Claims] 1. A data recording apparatus applied to a camera, comprising: a data recording means capable of recording data on an image recording medium in a first data recording mode and a second data recording mode; When an operation for exchanging an image recording medium or an operation of a main switch of the camera is performed, the data recording unit is configured to perform the second recording.
When the data recording mode is set to the first data recording mode, the data recording means is switched to the first data recording mode. When the data recording mode is set to the first data recording mode, the data recording means is switched to the first data recording mode. Control means for maintaining the data recording mode. 2. A camera to which a data recording device capable of recording data on an image recording medium in a first data recording mode and a second data recording mode is applied, in which a shutter release member of the camera is operated or an image recording medium is replaced. When the data recording means is set to the second data recording mode when an operation for the camera or a main switch of the camera is performed, the data recording means is switched to the first data recording mode.
And if the first data recording mode is set, the data recording means is switched to the first data recording mode.
And control means for maintaining the data recording mode.