JPH01176191A - Picture signal recording system - Google Patents

Abstract

PURPOSE:To simplify a system by providing a storage means provided removably to an image pickup section and storing plural kinds of color component signals outputted from an image pickup means of an image pickup section and a form information signal corresponding to each color component signal outputted from a form information signal forming means. CONSTITUTION:The system is provided with an image pickup section including an image pickup means 102 picking up an object image and outputting sequentially plural kinds of color component signals of a picture corresponding to a picked-up object image and a form information signal generating means forming a forming information signal representing the form of each color component signal outputted from the image pickup means 102 and outputting it. Moreover, the system is provided with a storage means 108 provided removably to the image pickup section and storing plural kinds of color components signals outputted sequentially from the image pickup means 102 of the image pickup section and a form information signal corresponding to each color component signal outputted from a form information signal generating means. Then plural kinds of color component signals outputted sequentially from the image pickup means 102 are stored in the storage means together with the form information signal corresponding to each color component signal. Thus, the system is simplified and the number of components is saved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image No. 48 recording system for recording image signals.

[Conventional technology] Conventionally, CCD (Charge tl, opened
An electronic still camera is known as a device that records still images captured by an image sensor such as a device or an MO3 type solid-state image sensor on a recording medium. This type of electronic still camera is a device that performs FM modulation on a still image signal obtained from an image sensor and records it on a small magnetic floppy disk.

However, since this electronic still camera records still image signals on a rotating small magnetic disk, it inevitably requires a mechanical mechanism and is subject to vibrations and vibrations in the camera body.
There is a certain limit to the reliability of the disk, and since it is a magnetic recording method, the magnetic head and magnetic floppy disk will wear out, causing signal deterioration during long periods of recording and reproducing. Furthermore, there is a limit to how small the mechanical mechanism can be made to be, and there is a limit to how much the camera can be made smaller.

However, with the recent progress in IC memory, an image signal recording device that does not use a magnetic floppy and records image signals on the IC memory has been proposed (Japanese Patent Publication No. 1983-1999).
(See Publication No. 43393 “Camera”). This image signal recording device converts a still image signal obtained from an image sensor such as a CCD or MO3 type image sensor into a digital signal using an analog-to-digital (A/D) converter.
The still image signal digitized as described above is recorded as digital data on a recording medium in which an IC memory such as an IC cart is hybridized. It has several advantages.

(1) Hybridization of the imaging unit and recording unit and LS
It is possible to make the device smaller and lighter.

(2) Since the still image signal is digitized and recorded, signal deterioration does not occur even during recording/playback or special dubbing.

(3) Since the neck brace does not contain any complicated mechanical mechanism, it is highly reliable against vibrations and shocks.

FIG. 4 shows the configuration of the above-mentioned image signal recording device. Fourth
In the figure, 10 and 20 surrounded by broken lines are a camera section and a memory section, respectively. In addition, 30 is the camera section 1
CTI and CT2 are connection terminals provided on the connector section 30, respectively. The camera unit 10 includes an optical system lens 201, a solid-state image sensor 202, a sample-and-hold circuit 203, a signal processing circuit 204, and three A/D converters 205 and 206 for brightness signals and color signals.
．． 207, switch S1 and battery (including power supply circuit)
208, and the memory section 20 has an IC memory 210 and a secondary battery (including a power supply circuit) 211.

Next, the operation of the image signal recording apparatus shown in FIG. 4 will be explained.

In FIG. 4, the solid-state image sensor 20 is
The image formed on the imaging surface 2 is captured by the solid-state image sensor 202 as a still image by a mechanical shutter mechanism (not shown) or an electronic shutter function of the solid-state image sensor 202. Note that since the solid-state image sensor 202 is provided with a color filter (not shown), the solid-state image sensor 202
Then, the amount of incident light is converted into an electrical signal, for example, R, G.
, B, are sequentially output, and the above R9G B is sent to the sample-and-hold circuit (S/H) 203 in synchronization with a transfer lock signal generated from a synchronization signal generation circuit (not shown).
, output a signal. The S/H 203 samples and holds the output of the solid-state image sensor 202 in synchronization with the transfer lock signal. Then, in a signal processing circuit 204 including a well-known matrix circuit, the R, G, B signals from the solid-state image sensor obtained as described above are processed into a luminance signal, that is, a Y signal, and a color difference signal, that is, R-Y. A signal and a B-Y signal are generated. The Y signal, the RY signal, and the BY signal are sent to the A/D converter 205.
．． At 206 and 207, each sample is converted into a digital signal of 8 bits to 6 bits. Then, by sequentially switching and outputting these signals in the switch circuit Sl, digital Y, R-Y
, B-Y signals are multiplexed in a time-division manner and are supplied to the IC memory 210 of the memory section 20 via the connection terminal CT of the connector section 30 and stored therein.

In this image signal recording device, the camera section IO and the memory section 20 can be separated in parallel using the connector section 30, and the memory section 20 has a rechargeable secondary battery 211. When separating lO and memory section 20,
At the same time when a drop in the supply voltage from the battery 208 provided in the camera unit 1O is detected by a power supply switching circuit (not shown), the secondary battery 211 of the memory unit 20 operates as a backup power source for the entire memory unit 20. It is supposed to be done. Furthermore, in a state where the camera unit IO and the memory unit 20 are connected, the memory unit 20 is connected to the camera unit 10.
The secondary battery 208 receives power supply from the secondary battery 208.
11 can also be charged (Japanese Patent Application Laid-open No. 57-910
(See No. 79).

[Problems to be Solved by the Invention] However, the conventional image signal recording device as described above has the following drawbacks.

That is, since the image signal obtained from the solid-state image sensor 202 is converted into the Y signal, RY signal, and BY signal in the signal processing circuit 204, three A/D converters 205 to 207 are required. Moreover, it requires complicated processing such as time-division multiplexing to the switch circuit s1 after converting into a digital signal.

Additionally, if three A/D converters are replaced with one, the processing becomes even more complicated, such as switching the human input signal to the A/D converter over time, which results in smaller and lighter equipment. This means that it is disadvantageous in terms of lower power consumption.

An object of the present invention is to provide an image signal recording system that contributes to a reduction in the number of parts, a reduction in size and weight, and is capable of accurately recording and reproducing images, in order to solve the conventional problems as described above. be.

[Means for Solving the Problems] The image signal recording system of the present invention includes an imaging unit that captures a subject image and sequentially outputs a plurality of color component signals of an image corresponding to the captured subject image. a form information signal forming means for forming and outputting a form information signal representing the form of each color component signal outputted by the image capturing means; and an image capturing means of the image capturing unit, which is detachably provided with respect to the image capturing unit. The apparatus further includes a storage means for storing a plurality of types of color component signals sequentially outputted from the shape information signal forming means and a shape information signal corresponding to each color component signal outputted from the shape information signal forming means.

[Function] According to the above configuration, the plurality of color component signals sequentially outputted from the imaging means are stored in the storage means together with the form information signal corresponding to each color component signal, so that the system can be simplified. It also reduces the number of parts, which greatly contributes to smaller, lighter, and lower power consumption systems.

[Example] Hereinafter, the present invention will be explained in detail and specifically using an example of the present invention.

FIG. 1 is a schematic configuration diagram of a recording device in an image signal recording system as an embodiment of the present invention. Figure 5 is the first
3 is an operation flowchart of the recording apparatus shown in the figure.

In FIG. 1, 1 and 2 surrounded by broken lines are a camera section and a memory section, respectively. Further, 3 is a connector part that connects and separates the camera part 1 and the memory part 2,
CT3 and CT are connection terminals provided in the connector section 3. The camera unit 1 includes a lens lO1 and a solid-state image sensor 102.
, sample and hold circuit 103, A/D converter 104, switch circuit S2, system controller (syscon) 105, and battery (including power supply circuit) 106,
It has an ID code generation circuit 11O1 and an operation section 111. Furthermore, the memory section 2 includes an IC memory 108 and a secondary battery (including a power supply circuit) 109.

Next, the recording operation in the recording apparatus shown in FIG. 1 will be explained using the operation flowchart shown in FIG.

In FIG. 1, when the device is brought into operation by the operation unit 111 and the system controller 105 is instructed to start a recording operation by a release switch (not shown) provided on the operation unit 111 (step #1), the lens 101 The image formed on the imaging surface of the solid-state image sensor 102 is captured as a still image on the solid-state image sensor 102 by a mechanical shutter mechanism (not shown) or an electronic shutter function of the solid-state image sensor 102. Note that since the solid-state image sensor 102 is provided with a color filter (not shown), the solid-state image sensor 102 converts the amount of incident light into electrical signals, and sequentially outputs, for example, R, G, and B signals. It is output to the sample and hold circuit 103 in synchronization with a transfer lock signal generated by the illustrated synchronization signal generation circuit. In the sample and hold circuit 103, the solid-state image sensor 102
The output signal from the transfer lock signal is sampled and held in synchronization with the transfer lock signal. The R, G, B signals from the solid-state image sensor 102 obtained in this way are converted to 8 bits to 6 bits per sample in the A/D converter 104.
t digital signal (step #2). The signal is then supplied to the IC memory 108 provided in the memory section 2 via the switch circuit S2 and the connection terminal CT3 of the connector section 3, and is stored therein. Figure 28 shows this IC memory 1
The memory map in 08 is shown. In this figure.

As shown, the image data obtained by photographing is sequentially supplied to the IC memory 108 and stored therein, and is further supplied to the system controller 10.
The ID code is generated by the ID code generation circuit 110 according to the instruction of the switch circuit S2.5. The identification code of each image data, that is, the ID code, is stored at a predetermined address on the IC memory 108 via the connection terminal CT3 of the connector section. This I
The D code includes, for example, the corresponding image data number, the vertical and horizontal pixel configuration of the image sensor used to obtain the image data,
The configuration of the color filter of the image sensor, etc. is encoded as information, and furthermore, information mainly related to the hardware of the recording unit 1, such as the number of bits of A/D conversion and the storage address of image data, is encoded. .

In addition to the above-mentioned court, this ID code also has a user's area that allows users to freely use the shooting date and time.The date and time can be set by operating the operation unit 111, and the date and time can be input from the ID code generation circuit 110. The relevant code is output (step #3). I of each of these image data
A collection of D codes creates a File;o as shown in Figure 2B.
ntrol BLock (PCB) is configured and the second A
As shown in the figure, the information is stored as information at the starting address of the IC memory 108 (step #4).

Furthermore, if the recording operation continues, the above-mentioned operation is repeated (step #5).

Further, the camera section 1 and the memory section 2 can be separated at the connector section 3. In the memory unit 108,
A rechargeable secondary battery 109 is built-in, and when the camera unit 1 and the memory unit 2 are separated, a decrease in the supply pressure from the battery 106 of the camera unit 1 is detected, and at the same time the memory unit is disconnected. The second secondary battery 109 operates as a backup power source for the entire memory section 2. Furthermore, when the camera section 1 and the memory section 2 are connected, the memory section 2 receives power from the battery 106 of the camera section 1 and also charges the secondary battery 109.

Next, a reproducing apparatus for reproducing image data recorded in the removable memory section in this manner will be described.

FIG. 3 shows the first image signal recording system in the image signal recording system of the present invention.
1 is a diagram showing a schematic configuration of a reproducing device corresponding to the recording device shown in the figure. FIG. 6 is an operation flowchart of the reproducing apparatus of FIG. 3. In FIG. 3, 4 and 2 surrounded by broken lines are a reproduction section and a memory section, respectively. Also,
Reference numeral 5 denotes a connector section that connects or separates the reproduction section 4 and the memory section 2, and CT5 and CT6 respectively represent connection terminals. Here, the playback unit 4 uses the system controller 501
, programmable signal processing circuit 502, frame memory 503, A/D converters 504, 505 and 506,
Balanced modulator 507, switch circuit S3, power supply (battery in the case of a portable regenerator) 508, ID code decoding circuit 5
09, it has an operation section 510. Further, it is assumed that image data has already been stored in the memory unit 2 by the recording device shown in FIG.

The following is a 6th section regarding the playback operation of the playback device shown in Figure 3.
This will be explained using the operation flowchart shown in the figure.

First, when the operation unit 510 instructs the system controller 501 to play an arbitrary image (step #6), the system controller 501
01 reads data stored in the memory 108 into the playback device 4 via the switch circuit S3 and the connection terminal CT of the connector section 5, and reads the ID code stored in the memory 108 into the ID code decoding circuit 509. (Steps #7 and #8).

As mentioned above, the ID code contains information such as the vertical and horizontal pixel configuration of the image sensor, coded information on the color filter configuration of the image sensor, and the storage address of the A/D conversion bit number 1 image data. Since the information is included in the
The code is decoded by the code decoding circuit 509, and based on the decoded information, the system controller 501 sends the programmable signal processing circuit 5
02 is generated and supplied to the programmable signal processing circuit 502, a signal processing method in the signal processing circuit 502 is selected, and predetermined calculation parameters are set (step #9). After that, the image data specified by the operation unit 510 is read out from the memory 108, processed in the programmable signal processing circuit 502 based on the signal processing method set as described above, and converted into digital Y signal, R After being converted into -Y signal and BY signal, -1 is stored in the frame memory 503 (
Step #10).

When the above operations are completed, the stored Y signal, R-Y signal, and B-Y signal are sent from the frame memory 503 to a predetermined television in synchronization with a synchronization signal generated from a synchronization signal generation circuit (not shown). The data is repeatedly output in accordance with the John's version method (step #11). D/A converter 504.
505 and 5o6, each signal output from the frame memory 503 is converted from a digital signal to an analog signal, and the converted Y signal and R-Y signal are converted into analog signals.
Of the signals and B-Y signals, the R-Y signal and the B-Y signal are inputted to a balanced modulator 507, subjected to predetermined balanced modulation using the color subcarrier frequency as the carrier frequency, and output from terminal A. . Further, the other Y signal is output to terminal B. Therefore, images can be reproduced by connecting terminals A and B to an external TV monitor or the like as Y/C outputs.

Moreover, the playback operation continues until the end of the playback operation is instructed on the operation unit 510! This is then carried out (step #12
).

Note that in this playback device, the secondary battery 10 of the memory section 2
9 and the memory backup function and charging operation of the power supply 508 in the playback device 4 are the same as in the case of the recording device described above.

[Effects of the Invention] As described above, according to the present invention, the number of parts can be reduced, the circuit can be simplified, and the device can be made smaller, lighter, and lower in power consumption.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of the configuration of a recording device in the image signal recording system of the present invention, FIG. 2A is a schematic diagram showing an example of a memory map of the memory section of the recording device in FIG. A schematic diagram showing an example of a file control block in the memory map shown in FIG. 2A. FIG. 3 is a block diagram showing an example of the configuration of a playback device in the image signal recording system of the present invention, and FIG. 4 is a diagram showing the configuration of a conventional image signal recording device. A block diagram showing an example; FIG. 5 is an operation flowchart of the recording apparatus shown in FIG. 1; FIG. 6 is an operation flowchart of the reproduction apparatus shown in FIG. 3. DESCRIPTION OF SYMBOLS 1... Camera part, 2... Memory part, 3.5... Connector part, 4... Playback part, 101... Lens part, 102... Solid-state image sensor, 103... Sample Antholt circuit, 104...
・A/D converter, 105.501...System controller, 10F+
...Battery, 108...Memory, 109...Secondary battery, 110...ID code generation circuit, 111.510...Operation unit, CT+, CT2, CT3. CT,+
, CTs, CTa... contact, 502... programmable signal processing circuit, 503...
・Frame memory, 504, 505', 506...D/A converter, 507
...Balanced modulator, 508...Den 7 source, 509...ID code decoding circuit. r---1---1

Claims (1)

[Scope of Claims] An imaging unit including an imaging unit that captures a subject image and sequentially outputs a plurality of color component signals of an image corresponding to the captured subject image; and each color component signal output by the imaging unit. a form information signal forming means for forming and outputting a form information signal representing the form of the image; and a plurality of types of color component signals that are detachably provided to the imaging section and sequentially output from the imaging means of the imaging section. An image signal recording system comprising: storage means for storing a form information signal corresponding to each color component signal outputted from the form information signal forming means.