JPH0337865A - Recorder - Google Patents

Abstract

PURPOSE:To display ID data with a fewer number of display digits by cyclically designating the data to be displayed in identification information corresponding to the operation of an operating switch, and performing the setting and change of the identification information. CONSTITUTION:The optical image of a object is converted to an electrical signal with an image pickup element 16, and supplied to a process circuit 18. Meanwhile, a system control circuit 48 applies the ID data inputted from a switch group 49 to a memory circuit 20 under the display of a display device 44, and the memory circuit 20 performs a modulation processing for recording, and outputs it after multiplexing on a signal from the process circuit 18, and it is stored in a floppy 24. The display device 44 performs display with two digits at every input of an ID switch 66 while being flicked, and performs year display, month display, day display, a serial number high-order display, middle- order display, low-order display, and respective display values can be increased or decreased with an up-switch 58 and a down-switch 60 in the switch group 49 at every stage.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device, and more specifically to a still image recording device.

[Prior Art] As a recording medium for such still images, for example, there is a still video floppy specified by the Still Video Conference, and as a recording device there is a still video camera. For still video floppies, the outermost first
There are 50 tracks from the track to the 50th track on the innermost track, and each track can record one field of video signal.

Two adjacent tracks are used to record one frame of video. In still video floppies, recording formats such as date, time, track number, field/frame identification information, and user code are defined as identification information, ie, ID information, that accompanies still images to be recorded.

As a means to set or manually set such ID data,
In conventional still video cameras, the input means is operated by using predetermined manual means and by looking at the display on a 6-digit, 7-segment display device provided on the camera body.

[Problems to be Solved by the Invention] A segment display device with a six-digit display not only occupies a relatively large area but is also expensive, so it is not suitable for still video cameras aiming to be smaller and lower in price. It is disadvantageous. Another disadvantage is that as the number of display segments increases, the display control circuit also becomes more complex.

Therefore, an object of the present invention is to provide a recording device that can display ID data with a smaller number of display digits.

[Means for Solving the Problems] A recording device according to the present invention is a recording device that records identification information of a predetermined number of digits for identifying recorded information on a recording medium together with the recorded information, a display means having the ability to display a number of digits smaller than the number of digits for display;
The present invention is characterized in that an operation switch means is provided, and in accordance with the operation of the operation switch means, data of the identification information to be displayed by the display means is cyclically specified, and the identification information is set and changed.

[Operation] With the above means, even if the number of display digits of the display means is small, all of the identification information can be displayed, and therefore, the manual contents of the identification information and the changed contents can be confirmed as display data.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a block diagram of an embodiment of the present invention. 1
0 is a photographing lens, 12 is a mechanical shutter, 14 is a drive circuit for the shutter 12, 16 is an image sensor, and 18 is an image sensor 16
20 is a recording circuit that performs recording processing such as modulation on the luminance signal and color difference signal output from the process circuit 18;
2 is a recording, erasing and playback switch; 24 is a video floppy recording medium; 26 is a floppy 24;
30 is a magnetic head, 36 is an erasing circuit that generates an erasing signal, 38 is a reproduction circuit that performs reproduction processing such as demodulation on the reproduction signal from the magnetic head 30, and outputs it in a video signal format; 40 is a video output It is a terminal.

44 is a liquid crystal display device for displaying the system status and various data. The liquid crystal display device 44 has a two-digit numerical display capability for displaying ID data. 48 is a system control circuit that controls the entire system. Reference numeral 49 denotes a group of switches for manually inputting predetermined instructions to the system control circuit 48. The photographing preparation switch 50 closes at the first stroke of the shutter release operation and instructs to enter the photographing preparation operation, and the photographing switch 52 2nd shutter release
Close with a stroke to instruct shooting operation. In addition, there is a recording switch 54, a playback switch 56, an amplifier switch 58 for instructing track up, a down switch 60 for instructing track down, a mode for switching the display mode of the display device 44, and a mode for switching the setting mode. - There is a switch 62, a BLC switch 64, and an ID switch 66.

101 is a clock calendar circuit that generates date and time information. Reference numeral 102 denotes a variable YJ circuit that modulates, for example, DPSK-modulated date/time information output from a clock circuit 10 as ID data. A counter 104 counts a four-digit consecutive number to be recorded as ID data, and is incremented every time a photograph is taken.

The operation during recording shown in FIG. 1 will be briefly explained. Image sensor 16
The optical image of the object is converted into an electrical signal, and the process circuit 18 outputs a luminance signal and a color difference signal. The recording circuit 20 performs processing such as modulation on the luminance signal and color difference signal from the process circuit 18 for recording. On the other hand, the system control circuit 48 applies the ID data entered by the switch group 49 to the recording circuit 20 under the display of the display device 44, and the recording circuit 20 also applies modulation, etc. for recording. It is processed, multiplexed with the signal from the process circuit 18, and output. This output is applied to the magnetic head 30 via the switch 22 and recorded on the floppy disk 24.

Next, the manual input of ID data and the operation of the display device 44 at that time will be explained with reference to FIG. Note that the display device 44 normally displays track numbers from 1 to 50.
When the system control circuit 48 senses the operation of the ID switch 66, it enters the ID setting mode and controls the display mode of the display device 44 as follows.

That is, the ID switch 66 manually changes the display of the current track number (Sl) to a blinking display of the ID data "hour" (S2), and the up switch 5 of the switch group 49 is turned on.
8 and a down switch 60 allow the time display value to be raised or lowered. Next, ID switch 6 again
When there is 6 manpower, "minute" will be displayed blinking (S3),
The up switch 58 and down switch 60 of the switch group 49 allow the minute display value to be raised or lowered. Next, if there is human power from the ID switch 66 again,
"Seconds" will be displayed blinking (S4), and the second display value can be reset to "OO" by using the up switch 58 and down switch 60 of the switch 49.

Thereafter, in the same way, each time the ID switch 66 is input, the 2-digit display blinks, and the year display (S5), month display (S6), day display (S7), and serial number upper display (S8) are displayed. ), medium display (S9), and low order display (SIO), and at each stage, the displayed value can be raised or lowered by the up switch 58 and down switch 60 of the switch group 49.

Flashing display of ID data during ID setting mode (32-S
In 10), the ID data is repeatedly turned on and off, or instead of turning off the light, a specific segment may be turned on. Further, the setting order and items of ID data during ID setting mode are not limited to the example shown in FIG. 2.

Next, a method of erasing the video signal recorded on the floppy 24 will be explained. In this embodiment, the erasing current of the erasing circuit 36 is applied to the magnetic head 30 by releasing the shutter while pressing the mote switch 62, that is, by simultaneously inputting the mode switch 62 and the photographing switch 52. It has become so.

The reproduction mode is entered by manual operation of the reproduction switch 56 of the switch group 49, and in this state, the magnetic head 30 is moved to the target track (to be erased) using the up switch 58 and the down switch 60, and that track is reproduced. Then, the mode switch 62 and the shooting switch 52
With the simultaneous input of , the switch 22 connects to the b contact, and the erase current of the erase circuit 36 is applied to the magnetic head 30, erasing the recorded content of that track.

FIG. 3 shows an operation flowchart of the display device 44 at this time. While the floppy 24 is being played back, the display device 44 is displaying the track number (S20), and if the mode switch 62 and photo switch 52 are pressed simultaneously (S2+
), the displayed track number will be turned off for a specified period of time52
2), Next, the track number is lit at predetermined time intervals (S2
4) Turn off the light (S25) and turn on the light (S26), and at the same time, erase the recorded contents of the track.

After this, if it is confirmed that the simultaneous manual operation of the mode switch 62 and the photographing switch 52 continues (S27), the magnetic throat is moved to the next track (523), S24 to S26
Repeat to erase the recorded contents of that track. If the simultaneous manual effort is not continued, the erasing operation is ended and the process moves to the next step (328).

In the manner described above, the recorded contents of any one track or any number of consecutive tracks from any one trunk can be erased.

Next, with reference to FIG. 4, the display mode of the display device when all tracks are erased will be described. If the shooting switch 52, mode switch 62, and BLC switch 64 are operated simultaneously during playback of any trunk, the magnetic head 3
0 to the first track (S30), and the display device 44
displays its track number, that is, "1" (S31
). Then, the displayed track number is turned off for a predetermined time (532), and then the track number is turned on (S34), turned off (S35), and turned on (S36) at predetermined time intervals, and the recorded contents of the track are displayed. to erase. After that, the magnetic throat 30 is moved to the next track (S33
), 534 to 336 are blinked and erased. In this way, the track numbers are blinked and turned off for all 50 tracks (S37). Once all tracks have been erased, the process moves to the next step (338).

Also, here, all tracks are erased from the 1st trunk up to the 50th trunk, or vice versa, or the 5th trunk is erased in order.
All tracks may be erased from the 0th track to the 1st track.

The switches used to instruct various operations are not limited to those in the above embodiments. Further, in the above embodiment, a case where a plurality of switches are required for inputting one instruction has been described as an example, but the present invention is not limited to this, and other combinations or manual input using another single switch may be used. It may be. Further, although a liquid crystal display device is taken as an example of the display device 44, other display devices may be used, and the number of display digits is not limited to two digits.

In this embodiment, a still video flash drive is used as the recording medium, but such a medium may also be a tape-shaped medium, an optical recording medium, or a solid memory such as a semiconductor memory. Furthermore, the ID information may be data that is frequency-multiplexed with the video signal and recorded, or data that is not frequency-multiplexed and recorded in a time-division manner.

It may also be a recording medium for information other than video signals, such as audio signals.

[Effects of the Invention] As can be easily understood from the above explanation, according to the present invention, the number of digits displayed in the ID data display can be reduced, the size is small,
A low-cost display device can be used.

[Brief Description of the Drawings] Fig. 1 is a block diagram of the configuration of an embodiment of the present invention, Fig. 2 is a flowchart of display control of the display device 44 in erasing mode, and Fig. 3 is erasing recorded contents of individual tracks. FIG. 4 is a flowchart of display control when erasing recorded contents of all tracks. 16. Imaging device 24: Video floppy 26: Motor 30: Magnetic head 38: Playback circuit 40: Video output terminal 44・Liquid crystal display device 48 System control circuit 49・Switch group 50: Shooting preparation switch 52:
Shooting switch 54: Recording switch 56: Playback switch 58 Up switch 60: Down switch
62: Mode switch 64: BLC switch
66: ID setting switch

Claims (1)

[Claims] A recording device that records a predetermined number of digits of identification information for identifying recorded information on a recording medium together with the recorded information, and a display that has the ability to display a number of digits smaller than the number of digits for displaying the identification information. and an operation switch means, and according to the operation of the operation switch means, the data to be displayed by the display means of the identification information is cyclically specified, and the identification information is set and changed. recording device.