JPH046970A - Picture recording and reproducing device - Google Patents

Abstract

PURPOSE:To improve the utility by adopting the constitution such that the erasure is implemented by selecting the erasure mode able to select an optional recording area and the presence of recording is displayed. CONSTITUTION:The device is provided with each of picture signal recording, reproducing and erasure means and a mode changeover means selecting each function. At the changeover in the erasure mode, a recording area selection means selects a recording area of a recording element optionally and a display means displays whether a selected area is recorded or not recorded. Moreover, in the changeover state from the erasure to the pickup mode, an unrecording area selection means selects an unrecording area in the recording area. Through the constitution above, a photographer confirms the erasure. Moreover, a track to be immediately erased is moved in the case of rephotographing. An idle track is generated intentionally at the changeover to the pickup mode. Furthermore, an unrecording area selection means feeds an area till a succeeding unrecording area is obtained. Thus, the picture recording and reproducing device with remarkably excellent utility is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to an image recording/reproducing apparatus such as a still video camera, and more particularly to an image recording/reproducing apparatus equipped with an erasing function.

<Prior Art> In recent years, an optical image of a subject is formed on a solid-state image pickup device such as a CCD using an optical photographing means such as a lens or an aperture, and the image signal output from the image pickup device is called a still video floppy. A still video camera as an image recording device configured to record on a recording element such as a magnetic disk via a magnetic bed, and a still image reproducing device for reproducing the recorded still image have been put into practical use (in particular, Kaisho 646
(See Publication No. 0070, etc.).

When the still video camera and still image reproducing device as described above are used, unlike conventional film cameras, it is possible to extremely easily reproduce photographed still images without the need for developing or fixing processing.

In addition to the recording function, some still video cameras are equipped with the above-mentioned playback function and an erasing function for erasing the image signal recorded on the recording element.

<Problems to be Solved by the Invention> Conventionally, in such a still video camera, when performing the above-mentioned erasing, the trunk of the magnetic disk serving as the recording area of the recording element is sent in the playback mode, thereby: Select the desired trunk and operate the erase switch once selected.

In this case, whether the current track has been recorded or not can be determined by looking at the monitor that operates during playback mode, and the camera display will indicate whether it has been recorded or not. No display is performed.

As a result of not being able to distinguish between what is recorded and what is not, there is an inconvenience in that the photographer is unable to erase while confirming when using only the camera body, and is also unable to confirm after erasing. There is.

Furthermore, in the conventional configuration, erasing is performed when switching to playback mode, so when switching from shooting mode to playback mode, the magnetic head automatically moves to the outermost recorded track (usually the lth track). It is supposed to move.

Therefore, if you want to erase the image you just shot and immediately retake it, the magnetic head will be sent to the outermost track each time you switch to playback mode, and there will be no indication of whether it has been recorded or not. Because nothing is done,
Having to remember which track to erase is very inconvenient.

Conversely, when switching from playback mode to shooting mode, the system automatically moves to the unrecorded outermost track.

Therefore, even if you intentionally try to create an empty track and send the track first in playback mode, when you switch to the next shooting mode, it will automatically move to the unrecorded outermost track, and the original and cannot create an empty track.

In view of the above-mentioned conventional problems, the present invention performs erasing by switching to an erasing mode in which an arbitrary recording area can be selected, and also has a configuration that displays the presence or absence of recording, so that the image just taken can be erased. The purpose is to improve usability in cases such as when erasing images and immediately retaking images, or when creating an empty trunk.

It is also an object of the present invention to provide a function to send data to an unrecorded recording area when switching from erasing mode to photographing mode, thereby avoiding any inconvenience in photographing.

<Means for Solving the Problems> For this reason, the image recording/playback device of the present invention focuses an optical image of a subject on an image sensor using an optical photographing means, and records an image signal output from the image sensor. A recording means for recording on the recording element, a reproducing means for reproducing the image signal recorded on the recording element, an erasing means for erasing the image signal recorded on the recording element, and each of the recording, reproduction and erasing functional modes. an image recording/reproducing apparatus comprising: mode switching means for switching to the erase mode; recording area selection means for arbitrarily selecting a recording area of a recording element when switching to the erasing mode; A display means for displaying whether there is or is not recorded on the display unit is provided.

Further, in addition to the above configuration, it is preferable to include an unrecorded area selection means for selecting an unrecorded area among the recording areas of the recording element when switching from erasing mode to photographing mode.

<Function> In the above configuration, by distinguishing and displaying whether there is recording or not, the photographer can erase while confirming even when only the camera body is used, and can also confirm after erasing.

Furthermore, when switching from the photographing mode to the erasing mode, the user can immediately move to the track to be erased when erasing the track that has just been photographed and then re-photographing it again. In addition, there is no need to detect the recorded state and move the head each time, which is very convenient.

Furthermore, when switching from erase mode to shooting mode,
Since recorded detection is not performed, empty tracks can be intentionally created.

Furthermore, if an unrecorded area selection means is provided, the following effects can be achieved.

Even if the recording area sent in the erase mode has already been recorded and the mode is switched directly to the shooting mode, the recording area will continue to advance until the next unrecorded area appears.

For example, after making the 4.5.6 tracks of the floppy disk empty as the recording area of the recording element, 7.
Assume that the data was recorded on track 8.

If you try to take a picture again after taking out the recording element or switching to playback mode, it will stop at the fourth unrecorded track. Of course, you can start shooting from the 4th track at this point, but if you want to start shooting from the 9th track, use erase mode to advance to the 7th track, then switch to shooting mode to automatically start shooting from the 9th track. Photography is now possible.

<Example> Embodiments of the present invention will be described below based on the drawings.

First, referring to FIGS. 1 and 2, the main body structure of a still video camera according to the present invention will be explained.

In these figures, a still video camera 1 converts an optical image signal of a subject obtained by a photographing lens 2 as an optical photographing means into an electrical image signal using a built-in image sensor such as a CCD, and converts it into an electrical image signal as a recording element. This is for analog recording on a floppy disk 3. It also has a function of reproducing images recorded on the floppy disk 3, and has an image recording and reproducing function.

The still video camera 1 also has a release button 5 on the camera body I that is pressed to start recording an image by the photographer.
A display liquid crystal section 6 and an operation section 7 are provided in the vicinity of the release button 5, and display various photographic information and set photographing conditions.

Further, on the front surface of the camera body IA where the photographic lens 2 is provided, in addition to the photographic lens 2, a finder lens 8. Photometric lens 9. Remote control light receiving lens 10. LEDI to display shooting status using self-timer
I. Strobe dimming lens 12. A strobe light 13 is provided.

A remote control switch box 14, which is separate from the camera body IA and which transmits remote control signals wirelessly, is detachably attached to a recessed portion 1a provided on the left side of the camera body IA facing the subject.

1 shows the remote control switch box 14 installed, and FIG. 2 shows the remote control switch box 14 removed.

As shown in FIG. 2, the remote control switch box 14 is equipped with a remote control transmission switch 15 and an infrared light emitting LED 16 that transmits a modulated optical signal, and when the remote control transmission switch 15 is pressed, it emits infrared light. A certain remote control signal is transmitted, and when this signal is received by the remote control light receiving lens 10 of the still video camera 1, remote control becomes possible.

Next, the detailed structure of the display liquid crystal section 6 and the operation section 7 will be explained based on FIG. 3.

In the figure, the slide switch 21 is in the shooting mode (R
EC), playback mode (PLAY), erase mode (ERA
SE), automatic shooting/playback mode (AUTOREC&P
When the slide switch 12 is in the OFF state, power is not supplied to the camera, no display is displayed on the display liquid crystal section 6, and all switch operations are disabled. There is no reception.

The functions of each switch will be explained when the slide switch 21 is set to the REC position and a photographing mode is selected by normal operation of the release button 5.

In the shooting mode, each time you press the mode switch 22, the triangle mark on the left side of the display window 6a will change to 5ING.
LE-CONT, L-4CONT.

H-3ELF and can switch between single shooting, low-speed continuous shooting, high-speed continuous shooting, and self-timer modes.

If you press the mode switch 22 further from the 5ELF position,
The triangle mark returns to the 5INOLE position again.

The strobe switch 23 is a switch for changing the exposure mode, and is used to switch among strobe automatic firing mode, strobe forced firing mode, strobe OFF mode, AE lock mode, and bracket shooting mode, and each time the strobe switch 23 is pressed, , the triangular mark on the right side of the display window 6a indicates AUT →0N-OFF-+AE.
Move to LOCK-+BPACKET to display which exposure mode is selected.

The MACRO switch 24 is a switch for switching between the close-up shooting position and the standard shooting position of the photographic lens 2, and is set to 0.0 to 0.05 to prevent switching from being performed when touched carelessly.
It is designed to function only when pressed for 5 seconds or more. When the macro photographing mode is selected by the MACRO switch 24, the photographing lens 2 moves to the close photographing position, and the flower mark at the upper left of the display window 6a lights up.

The INTERVAL switch 25 is a switch for switching to interval shooting mode and setting conditions.
Each time the INTERVAL switch 25 is pressed, the hours, minutes, and seconds of the interval shooting interval and the number of shots can be set. Incidentally, in setting each condition setting value, the numbers are increased or decreased by pressing the mode switch 22 and the strobe switch 23, thereby allowing the numerical values to be changed. INTER
Similarly to the MAcRo switch 24, the VAL switch 25 switches to the interval shooting mode only when pressed continuously for 0.5 seconds or more, and the INT mark to the right of the flower mark on the display window 6a lights up. It has become.

The DATE switch 26 is a switch for changing the date display mode, and each time the DATE switch 26 is pressed, the display at the bottom of the display window 6a changes from month, day, year → day, month, year → year, month, day → date, hour.・Minute →
Changes in order of non-display.

The ADJUST switch 27 is a switch for switching to a change mode and selecting an item to change when changing the date or time, and the year, month, day, hour, or minute information selected by the ADJUST switch 27 is Mode switch (down switch) 22 and strobe switch (
It is changed by raising and lowering it using the up switch) 23.

In addition to the above-mentioned displays, the display window 6a is provided with a battery mark indicating the degree of battery consumption, a two-digit counter display indicating the number of shots, and the like.

When the slide switch 21 is set to the erase mode, the fifth
As shown in the figure, the words ERASH are displayed on the display window. In this state, select the track number you want to erase using the mode switch 22 and strobe switch 23,
When release button 5 is pressed, that track is erased.

Note that an example of erasing in the erasing mode will be explained in detail later.

Furthermore, when the slide switch is changed from the erase mode to the photographing mode, unrecorded data on the floppy disk is detected and the head is moved to an unrecorded track.

Next, the photographing control system for the still video camera 1 having the above structure will be explained with reference to FIG. 4, including its functions.

In the figure, the light that has passed through the lens 2 passes through the aperture 32 and the optical filter 33 and enters the CCD 34, where it is converted into an electrical signal, and then sent to the sample hold circuit 35 and the signal processing circuit 36.
Signal processing such as gamma correction, Y/C separation, and white balance adjustment is performed. The processed signal is subjected to FM modulation by a modulation circuit 37, and then magnetically recorded on the floppy disk 3 by a recording amplifier 38 and a recording/reproducing head 39.

Here, the timing generation circuit 40 is a CCD drive circuit 41.
It outputs pulses necessary for the signal processing circuit 36, modulation circuit 37, and recording amplifier 38.

The aperture 32 is controlled by an aperture drive circuit 43 controlled by a main CPU 42. The floppy disk 3 is rotated at a constant speed of 3600 revolutions per minute by a spindle motor 44 and a servo circuit 45.

The main CPU 42 controls the entire system and controls the power supply to each part, and the sub CPU 42 controls the entire system and the power supply to each part.
The PU 46 performs display on the LCD 64 and inputs various switches.

The distance measuring circuit 47 measures the distance to the subject using an infrared LED and a light receiving element such as a PSD.

The photometry circuit 48 measures the brightness of the subject using a photodiode.

The light control circuit 49 integrates the reflected light of the strobe light from the subject and notifies the main CPU of the appropriate exposure.

As is well known, the strobe circuit 50 includes a booster circuit and a capacitor, and charging and light emission are controlled by the main CPU 42.

The remote control signal receiving circuit 51 detects the modulated optical signal and sends it to the main CPU 42 as a digital signal.

-4. Regarding the reproduction structure, the signal magnetically recorded on the floppy disk 3 is electromagnetically converted by the recording/reproducing head 39,
After amplification by the reproduction amplifier 52, FM demodulation by the demodulation circuit 53, and signal processing by the signal processing circuit 54, the encoder circuit 5
5 is configured to output a video signal.

The upper recording/reproducing head 39 can be moved to any desired track by the main CPU 42 via a head control circuit 56.

Further, an erase signal generation circuit 71 for erasing the image signal magnetically recorded on the floppy disk 3 is provided, and a circuit 72 for inputting the erase signal outputted from the erase signal generation circuit H71 to the recording/reproducing head 39 is provided. It is being

The entire camera is powered by a battery 57 or an AC adapter 58 as shown. In this case, the main CPU 42, the DC/DC converters 60 and 5
Power is supplied to the V constant voltage circuit 61.

The power supply changeover switch 62 shown in the figure is configured to be able to be switched automatically or manually.

Moreover, when the remote control switch box 14 as a remote control transmitter attached to the camera body IA is removed from the camera body IA, the detection switch 63 of the camera body IA
The sub CPU 46 is capable of detecting that the remote control switch box 14 is removed.

Here, in the control system described above, the main CP
Detection signals from various sensors such as a light receiving element in the distance measuring circuit 47 and a photodiode in the photometric circuit 48 are inputted to the U42, and the main CPU 42 controls the focus and aperture 1 electronics (not shown) according to a pre-stored control program. Controls overall photography control such as shutter speed.

and recording area selection means for arbitrarily selecting a track as a recording area of the floppy disk 3 when switching to the erase mode, and a display unit for indicating whether the selected track is recorded or unrecorded. The main CPU 42 includes a display means for displaying information on the display liquid crystal section 6, and an unrecorded area selection means for selecting an unrecorded track as an unrecorded area from among the tracks of the floppy disk 3 when switching from erasing mode to shooting mode. It is provided in software as one of the control programs stored in advance.

An embodiment of recording/reproducing/erasing control based on the above-mentioned recording area selection means, display means, and unrecorded area selection means will be described with reference to FIGS. 6 to 10.

First, the structure of the display section and the function of the display means will be explained.

FIG. 6(a) shows the display in shooting mode, and it is already 11
Recording up to the 12th track has been completed, and the recording/reproducing head is now at the 12th rack. The same figure (b) is the same figure (a)
This is the display when switching from shooting mode to erasing mode using the slide switch. Date display is ER
It changes to ASH, indicating that it is in erase mode.

Figure (C) shows the case where the recording/reproducing head is returned to the 11)th rack, and to show that the 11th rack has already been recorded,
The words ``1 engineering'' are flashing. In other words, if it is a recorded track, the track number display will blink,
In the case of an unrecorded track, the light is simply turned on to distinguish between the two.

Figure (d) shows the case where the 11th track has been erased, and naturally the character number 11 has changed from blinking to lighting.

In the above embodiment, an example was shown in which the track number display is changed, but a dedicated display may be provided as follows.

FIG. 7 shows this embodiment, in which the characters ``Record'' are displayed in the case of a recorded track, and the characters ``Blank'' are displayed in the case of an unrecorded track.

Note that the characters do not have to be Record/Blank as described above.

Further, as shown in FIG. 8, in the erase mode, if the track number has been recorded, the frame around the track number display is lit up, and if it has not been recorded, it is turned off.

As described above, by distinguishing and displaying whether or not something has been recorded, the photographer can erase it while confirming it even when using only the camera body, and can also confirm after erasing.

By providing the above-mentioned recording area selection means and configuring erasing in the erasing mode, the following effects and effects can be achieved.
be effective.

In other words, when switching from shooting mode to erasing mode,
Since there is no need to move the head to the outermost recorded track as in the playback mode, when erasing the track that was just shot and reshooting it, you can immediately move to the track to be erased. In addition, there is no need to detect the recorded state and move the head each time, which is very convenient.

FIG. 9 shows an example of erasing in the erasing mode.

Furthermore, when switching from erase mode to shooting mode,
It is possible to intentionally create an empty track on a mountain pass without recorded detection.

FIG. 10 shows an example of this, and in FIG. 10(a), up to three tracks have been recorded in the photographing mode, and the head is on the fourth track. Here, I switched to erase mode.
The head remains positioned at the fourth track, as shown in FIG. 4(b). The head is further advanced to the 7th track as shown in FIG. 3(C). By switching to the shooting mode, tracks 4, 5, and 6 can be used as empty tracks, and recording can be started from the 7th track.

Creating an empty track as described above is effective if you want to record something here later.

Conventional methods that perform erasing only in playback mode,
As mentioned above, as shown in Fig. 12, even if you go to the 7th track, when you switch to the shooting mode, the recorded detection function returns you to the 4th track, which is the outermost unrecorded track. This means that empty tracks cannot be created.

In this embodiment, a configuration is adopted in which erasing can be performed not only in the above-mentioned erasing mode but also in the reproduction mode, and an example of erasing in this case is shown in FIG.

Next, by providing the above-mentioned unrecorded area selection means, the following actions and effects are achieved.

That is, as shown in FIG. 13, even if the track sent in the erase mode has already been recorded and the mode is switched directly to the photographing mode, track feeding continues until the next unrecorded track appears.

In Figure 13, the 7th track has already been recorded, so
The head is being moved to the next unrecorded track, the 9th track. The situation shown in FIG. 13 may occur in the following cases.

4.5.6) Suppose that after the rack is set to an empty track, recording is made on the 7°8 track.

At this point, when the floppy disk is removed or the floppy disk is switched to the playback mode, and another attempt is made to take a picture, the head stops at the fourth track, which is the outermost unrecorded track. Of course, you can start shooting from the 4th track at this point, but if you want to start shooting from the 9th track, use erase mode to advance to the 7th track, then switch to shooting mode to automatically start shooting from the 9th track. Photography is now possible.

In the above embodiments, a still video camera was used as an example of the image recording/playback device, but it is also possible to record/playback image signals output from AV equipment such as a video tape recorder or image signals such as computer graphics. It is also possible to implement the present invention in a device that uses

Furthermore, although the description has been made regarding a still video camera 1 that performs analog recording using a floppy disk 3 as a recording element, the present invention can also be applied to still video cameras that use other storage elements, such as digital recording on a semiconductor memory. Needless to say.

<Effects of the Invention> As described above, according to the present invention, an optical image of a subject is formed on an image sensor, an image signal output from the image sensor is recorded on a recording element, and the recorded image signal is In an image recording/reproducing apparatus configured to reproduce a recorded image signal and erase a recorded image signal, the recording area of the recording element can be arbitrarily selected when switching to the erasing mode, and the recording area of the recording element can be arbitrarily selected. The display is configured to display whether the recorded area is recorded or unrecorded, so the photographer can check whether the area is recorded or not, even when using only the camera body. The image can be erased while the image is being erased, and confirmation can be made after the image has been erased. In addition, it is possible to improve usability in cases such as when erasing an image that has just been taken and wanting to immediately retake it, or when creating an empty track.

Further, if a function is provided to send the recording to an unrecorded area when switching from the erasing mode to the photographing mode, there will be no inconvenience in photographing, and usability can be further improved.

[Brief explanation of drawings]

1 and 2 are respectively perspective views showing the main body structure of an embodiment of a still video camera according to the present invention, and FIG. 3 is a plan view showing the detailed structure of a display liquid crystal section and an operation section in the same embodiment. , FIG. 4 is a diagram of the photographing control system of the camera according to the above embodiment, FIG. 5 is a diagram showing an example of display in the erase mode in the above embodiment, and FIGS. 6 to 8 each show a display method in the above embodiment. The diagrams shown in FIGS. 9 to 13 are diagrams showing track conditions in each mode to explain the control function of the present invention. 1...Still video camera 2...Photographing lens 3
...Floppy disk 5...Release button 6.
...Display liquid crystal section 6a...Display window 7...Operation section 21...Slide switch 22...Mode switch 23...Strobe switch 34
...CCD 39...Recording/playback head 42...
・Main CPU 4B...Photometering circuit 71...
・Erasure signal generation circuit Fig. 1 Patent applicant Konica Co., Ltd. Representative Patent attorney Fujio Sasashima To Fig. 9 - Sodo device ↑ Rorororororo (e) To Sodo position To Soto position 1F position Go to 1F position↑

Claims (2)

[Claims] (1) A recording means for forming an optical image of a subject on an image sensor using an optical photographing means, and recording an image signal output from the image sensor on a recording element, and reproducing the image signal recorded on the recording element. An image recording/reproducing apparatus comprising: a reproduction means for erasing the image signal recorded on the recording element; and a mode switching means for switching each of the recording, reproduction and erasure function modes. A recording area selection means for arbitrarily selecting a recording area of a recording element when switching to a mode, and a display means for displaying on a display unit whether the selected recording area is recorded or unrecorded are provided. An image recording/reproducing device characterized by: (2) The image recording/reproducing apparatus according to claim 1, further comprising an unrecorded area selection means for selecting an unrecorded area from among the recording areas of the recording element when switching from erasing mode to shooting mode. Device.