JPS62272779A - Image pickup device - Google Patents

Abstract

PURPOSE:To display a track number at the time of image picking up and reproducing on one display device by providing a track-number display device to display the number of a track to be recorded next at the time of image picking up, and using said display device for displaying the track number being in reproducing. CONSTITUTION:In the reproduction mode, in case an up switch 1U is pushed for (n) times, the output OUT of a counter 2U comes in (n), and the output OROUT of an OR gate comes in a high level, so that a pulse from an oscillator 8 is inputted to the U-terminal of a head position counter 5 and the D-terminal of the counter 2U via an AND gate 4U. Accordingly, by means of one piece of pulse from the oscillator 8, a counter 5 is made count up for one, and the counter 2U is made count down for one. Therefore, the output of the counter 2U comes to zero, and the input to the gate 4U is prohibited, and (n)-pieces of pulses only are inputted to the counter 5 so that a head unit 7 is shifted for an (n)-track length. The same as the above can be said of a down switch 1D. As a result, the output of the counter 5 is displayed in the track-number displayer 22 either in the image pickup mode or the reproduction mode.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an imaging device that can be played back alone or by connecting an adapter, and particularly to an imaging device that can display track numbers in shooting mode. It is related to.

[Conventional technology] Conventionally, in almost all silver halide film cameras,
A so-called film counter is provided to display the number of film shots that have been taken, the number of the next film to be shot, and the number of remaining films.

On the other hand, for imaging devices that record still image information for each screen on a recording medium such as a magnetic disk, it is desired to display the track number of the magnetic disk to be recorded in order to improve usability. .

Furthermore, it is expected that among this type of imaging device, those having a playback function either alone or by connecting an adapter will become mainstream, and in that case, it will be necessary to display the track currently being played.

In this way, it is wasteful to use separate displays to display the number of tracks during recording and to display tracks during playback in an imaging device that can have a playback function.

[Problems to be solved by the invention] Therefore, the present invention has been made in view of this point,
The object of the present invention is to provide an imaging apparatus that can display tracks during photographing and during playback using the same display, thereby eliminating waste in the apparatus.

[Means for Solving the Problems] In order to achieve the above object, the present invention records information on a recording medium track by track using a recording head, and provides an imaging system that can be reproduced independently or by connecting an adapter. The device has a track indicator that displays the number of the track to be recorded when the camera is released next time during shooting, and displays the number of the track currently being played on the track indicator during playback. It is characterized by

[Function] According to the present invention, tracks can be displayed on a single display during shooting and playback.

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

FIG. 1 shows an embodiment of the present invention, in which Ill and ID each have an up switch and a down switch for track advance, and each time the switch is pressed, one This is a pulse generation circuit that generates positive pulses. Here, these pulse generating circuits will be referred to as an up switch and a down switch, respectively.

2u and 2D and 5 are counters, respectively,
A single positive pulse input from terminals U and D causes the value of digital output 011T to increase and decrease by 1, respectively. Counters 2U and 2D count the number of times the up switch 11 and down switch 10 are pressed, respectively. The counter 5 stores the track position.

3U and 3D are counters 2u and 2p, respectively.
This is an OR gate whose input is the output OUT. Therefore, the OR output 0RO1IT is at a low level only when the output of the counter is O, and is at a high level otherwise.

4u and 4D are AND gates, OR gate 3U
and 3D outputs as input a, and also receives the oscillation output of an oscillator 8, which will be described later, as a manual output. Here, the output C is at a high level only when both human forces a and b are at a high level, and at all other times, the output C is at a low level.

6 is a head position driver that controls the position of the head unit 7 based on the counter output from the head position counter 5; the absolute track position is determined by a code plate (not shown) provided on the head unit 7; and 8 is a pulse oscillator. oscillates at a frequency corresponding to a speed at which the track feed of the head unit 7 can respond sufficiently.

Reference numeral 9 denotes a disk-shaped recording medium, for example, and this recording medium 10 is rotated by a motor 10. 11 is a servo circuit for controlling the phase and speed of the motor 10 to predetermined values.

Reference numeral 12 denotes a recording circuit, which records an output signal obtained by processing human power from the input terminal 16 in the recording signal processing circuit 14 on the recording medium 9 via the head unit 7 according to the switch state of the mode changeover switch 13. Or, the signal read out from the head unit 7 is transmitted to the reproduction signal processing circuit 1.
5 and output from the output terminal 17. 13^ is a one-shot circuit that outputs one pulse when the mode changeover switch 13 switches the mode from recording mode to playback mode. The output of this one-shot circuit 13A is input to the D terminal of the counter 5.

Further, 20 is a decoder that decodes the count output of the head position counter 5, 21 is a driver that generates a driving output based on the decoded output, and 22 is a track indicator driven by the driver 21.

The decoder 20 outputs 0LI from the head position counter 5.
T is decoded for the track display 22, and the driver 2
1, the track indicator 22 is driven to display the number of the decoded track. The track indicator 22 is, for example, a 7-segment, 2-digit LED, or an LCD.
It can be easily configured by using etc. Further, H5T is a timer that outputs one pulse when a time T sufficient for completing the imaging sequence and the recording sequence has elapsed after pressing a release button (not shown) to start imaging recording.

The operation of the configuration of the embodiment of the present invention described above will be explained.

First, in the playback mode, the up switch Ill is set to 1.
Consider the case where the button is pressed 0 times. Since it is the reproduction mode, the recording circuit 12 is in the reproduction operation state by the mode changeover switch 13. That is, a signal picked up from the recording medium 9 by the head unit 7 is output from the terminal 17 via the reproduction signal processing circuit 15.

When the up switch 10 is pressed 10 times, 10 positive pulses are input to the counter 2u, and its output 011T is 10
Therefore, the output 0ROIIT of the OR gate becomes high level. This causes the oscillator 8 to pass through the AND gate 4u.
Pulse input from is permitted. That is, the pulse from the oscillator 8 is input to the U terminal of the head position counter 5 via the AND gate 4U, and the pulse is input to the U terminal of the head position counter 5.
Human power is applied to the D terminal of u.

By doing this, one pulse from the oscillator 8 causes the count value of the counter 5 to increase by 1, and the count value of the counter 2u to decrease by 1.

In this way, when only 10 pulses are input from the switch III, the output of the counter 20 becomes zero, and the output 0ROIIT of the OR gate 3u falls to a low level.
Human power to ANDGATE 40 is prohibited.

As a result of the above, only 10 pulses are input to the U terminal of the counter 5, and the head unit 7 is sent for 10 tracks.

Furthermore, even if the response speed of the head unit is poor, the driver 6 drives the head unit 7 to shift until the absolute track position of the head unit matches the count value of the counter 5, so that reliable head shifting can be performed.

If the down switch ID is pressed 10 times, it will be returned by the number of slots.

At the same time, the decoder 20 decodes the count output "lO" of the head position counter 5 to match the display on the display 22. As a result, the track number "10" is displayed on the display 22 by the driver driver 21.

That is, in this example, regarding the track display, the output of the head position counter 5 is always displayed on the track display 22 regardless of the shooting mode or playback mode. That is, the display 22 always displays the number of the track over which the head is tracing.

In shooting mode, this is the track number on which to record the image information obtained by the next release shooting, and the timer H5T allows one shooting and recording every time the release signal is received. One pulse is output after being delayed by a time T that is sufficient to complete the cycle. Since this pulse increments the counter 5 by one, the track number at the position advanced by one track is displayed every time one photographing is completed.

On the other hand, during playback, the number of the track currently being played is displayed, which is extremely appropriate. Moreover, in this embodiment, since the counter 5 is decremented by 1 when switching from the recording mode to the reproduction mode, the head position is on the track recorded immediately before, and a reproduction signal can be obtained immediately. Of course, after this initial playback is completed, any desired track can be played back by operating the up/down switches.

Note that although this embodiment has been described here assuming that the number of times the button is pressed is 10 times, it is clear that this may generally be set to 0 times.

Furthermore, it is clear that the present invention can be easily configured with a computer and software, instead of being configured with hardware such as counters and gates as in the embodiments described above, which performs the same operations and functions. .

Furthermore, the recording signal processing circuit 14 and its input terminal 16 may be an imaging device such as an electronic camera, and furthermore, the entire system shown in the first diagram may be formed as an imaging device having reproduction capability. Of course.

[Effects of the Invention] As explained above, according to the present invention, diagnosis can be made by displaying tracks during shooting and playback on a single display, which simplifies the device configuration and reduces waste of the device. gone,
This also contributes to lowering prices.

[Brief explanation of drawings]

FIG. 1 is an electrical circuit diagram showing one embodiment of the present invention. Ill...up switch (pulse generation circuit), 22...Track indicator. ID...down switch (pulse generation circuit), 211.2[1...Counter, 311.3D...Orgate, 411.4D...and gate, 5...Head position counter, 6...Head position driver, 7...Head unit, 8...Pulse oscillator, 9...recording medium, lO...motor, 11... Servo circuit, 12...recording circuit, 13...mode changeover switch, 14... recording signal processing circuit, 15... Reproduction signal IA logic circuit, 16...input terminal, 17...output terminal, 20...decoder, 21...driver,

Claims (1)

[Scope of Claims] 1) In an imaging device that records information track by track on a recording medium using a recording head and can be reproduced by itself or by connecting an adapter, recording is performed the next time the camera is released when shooting. What is claimed is: 1. An imaging device comprising: a track indicator for displaying a track number; and during playback, the track indicator displays the number of the track currently being played. 2) The imaging device according to claim 1, wherein the track number is decremented by 1 upon switching from recording mode to playback mode.