JPH07288773A - Video disk recorder and optical disk - Google Patents

Abstract

PURPOSE:To provide a more useful video disk recorder and optical disk by recording a picture on the optical disk together with sounds accompanied with the picture and additional information other than sounds and synthesizing addi tional information and the picture to output the result. CONSTITUTION:A video signal, an audio signal accompanied with the video signal, and an additional information signal other than the audio signal are converted into digital signals, and the video signal and the audio signal are subjected to data compression, and the additional information signal and these video signal and audio signal subjected to data compression are recorded on one optical disk 13 by an optical recording and reproducing device 12. At the time of reproducing, the video signal and the audio signal subjected to data compression are expanded, and the video signal and the additional information signal are synthesized, and the additional information signal is outputted to a part of a picture output device 21 together with the video signal, and the audio signal is outputted to an audio output device 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video disk recorder and an optical disk for converting a video signal, an audio signal accompanying the video signal and an additional information signal into digital signals and recording / reproducing them on an optical disk.

[0002]

2. Description of the Related Art There are magnetic tapes, magnetic disks, optical disks, etc. as media for digitally recording video and audio. However, since the amount of digital moving image data is enormous, digital data has conventionally been compressed. A method of recording is proposed. Japanese Unexamined Patent Publication No. 59-54015 discloses an image recording device that compresses digital image data and records it on a disk-shaped medium.

On the other hand, as a reproducing apparatus for reproducing video, audio, and additional information accompanying them, as described in Japanese Patent Application Laid-Open No. 2-61860, a sub video signal is a sub-area other than an area in which the main video signal is recorded. 2. Description of the Related Art A video disc reproducing apparatus has been proposed in which main and sub video signals recorded and reproduced in a code area are combined and displayed on a screen in an overlapping manner. this is,
A main video signal such as a movie and a sub video signal such as a subtitle supermarket are recorded in different areas, and each main and sub video signal is read from the video disc. It can be inserted into the main image such as or deleted from the main image.

[0004]

When a user shoots and records an image as an application of a video disc recorder,
Information other than audio, such as temperature and humidity at the time of shooting, or the speed of a moving object when it is moving, is recorded on a single disc at the same time. Conventionally, there is no one that outputs additional information at the same time. Further, in the latter conventional example described above, a sub video signal such as a subtitle supermarket can be inserted into the main video signal, but it is only for reproduction and is not intended for the case where the user shoots.

The present invention solves the above-mentioned conventional problems, and an object thereof is to make it possible to record video, audio, and additional information associated with them on one disc at the same time, which is more useful. The purpose is to provide a high-performance video disk recorder and optical disk.

[0006]

A video disc recorder of the present invention is a video disc recorder for converting a video signal and an audio signal accompanying the video signal into a digital signal and recording / reproducing the same on an optical disk. A means for measuring an additional information signal accompanying the video signal, converting the additional information signal into a digital signal, recording the digital signal into the optical disk together with the video signal and the audio signal, and at the time of reproduction, A video signal and the additional information signal are combined, and the additional information is output to a part of the image output device together with the video signal,
The audio signal is output to an audio output device.

Further, the video disc recorder of the present invention compresses the video signal and the audio signal by data compression when recording the digitalized video signal, the audio signal and the additional information signal on the optical disk. It is characterized by recording on the optical disk.

In the video disc recorder of the present invention, the data-compressed video signal and audio signal and the digitalized additional information signal are recorded on the optical disc. An information signal and the data-compressed video signal and audio signal are time-axis-multiplexed and recorded on the optical disc.

Further, in the video disc recorder of the present invention, when the digital information-added additional information signal and the data-compressed video signal and audio signal are recorded on the optical disk, the video signal and the audio signal are recorded. The signals are time-multiplexed and recorded on the optical disc, the additional information signal is accumulated in a buffer until the end of photographing, and is read from the buffer after the end of photographing, and the video signal and the audio signal of the optical disc are recorded. It is characterized by recording in a place different from the place.

In the optical disc of the present invention, the recording region of the optical disc is a region for recording a video signal and an audio signal, a region for recording an additional information signal, the presence or absence of the additional information signal, the number of additional information, and an additional information. It is characterized by being divided into areas for recording information measurement time intervals and the like.

Further, the video disc recorder of the present invention is characterized in that the additional information measuring means is constructed integrally with the video disc recorder or the additional information means can be attached to the video disc recorder.

Further, in the video disc recorder of the present invention, the additional information measuring means is separated from the video disc recorder, and synchronization for synchronizing the additional information measuring means and the video disc recorder is provided. It has a communication part for transmitting and receiving a signal and the additional information signal.

Further, in the video disc recorder of the present invention, the additional information measuring means is separated from the video disc recorder, and photographing of the additional information signal digitized by the additional information measuring means ends. A region for storing the video signal and the audio signal of the optical disc by connecting the video disc recorder to the video disc recorder after the shooting, reading the additional information signal from the buffer. It is characterized by recording in different areas.

[0014]

As described above, the video disc recorder of the present invention, when the video signal and the audio signal accompanying the video signal are converted into digital signals and data-compressed and recorded on the optical disk, other than the audio signals accompanying the video signal are recorded. A means for measuring the additional information signal is provided, the additional information signal is converted into a digital signal, and the additional information signal and the data-compressed video signal and audio signal are time-axis-multiplexed onto one optical disk by an optical recording / reproducing device. It is configured to record.
Therefore, video, audio, and other additional information can be simultaneously recorded on one optical disc, and other information at the time of shooting can be added to the shot video. Here, the additional information is
For example, it refers to weather information such as temperature and humidity at the time of shooting, and information associated with shooting such as speed of a shooting target.

At the time of reproduction, the time-division-multiplexed additional information signal, video signal, and audio signal are separated, the data-compressed video signal and audio signal are expanded, and the additional information signal is combined with the video signal to produce an image. Since the audio signal is output to the output device and the audio signal is output to the audio output device, the additional information can be known at the same time while viewing the captured image.

In addition, the recording area of the optical disk, the area for recording the video signal and the audio signal, the area for recording the additional information signal, the presence or absence of the additional information signal, the number of additional information, the measurement time interval of the additional information. And the data compressed video and audio signals are time-axis-multiplexed and recorded in an area for recording video and audio signals on an optical disk, and the digital signal is added to the above-mentioned addition. Since the information signal is stored in the buffer until the end of shooting and is recorded in the area for recording additional information after the end of shooting, editing operations such as rewriting and erasing the additional information signal can be easily performed.

Further, since the additional information measuring means is constructed separately from the photographing part of the video disk recorder and the communication part for transmitting and receiving the synchronizing signal and the additional information signal between them is provided, the additional information measuring means is photographed. It can be attached to the target.

Further, since the additional information measuring means is separated from the photographing part of the video disc recorder and the additional information measuring means is provided with a buffer for accumulating measured data until the end of photographing, the additional information attaching means is attached to the photographing object. The information measuring means can be made more compact, and the behavior of the photographing target to which the additional information measuring means is attached is not restricted. Further, a plurality of sets of additional information measuring means can be attached to the plural photographing targets.

[0019]

EXAMPLES The present invention will be described in detail below based on examples. Hereinafter, the same parts are designated by the same reference numerals.

(Embodiment 1) FIG. 1 is a diagram showing an embodiment of a video disc recorder of the present invention. In this embodiment, an image input device 1, a voice input device 2, and an additional information signal measuring means 3 are integrated. The configuration or the additional information signal measuring means 3 can be attached. The signals input from the image input device 1, the audio input device 2, and the additional information signal measuring means 3 via the image pickup processing circuit 4, the audio processing circuit 5, and the additional information signal processing circuit 6 are digitalized by the A / D converter 7. Converted to a signal. At this time, each signal has
From the sync signal generator 8, a sync signal for synchronizing the respective signals is added. Of these digital signals, the additional information signal is temporarily held in the buffer 10, and the video signal and the audio signal are data-compressed by the compressor 9. The data-compressed video signal and audio signal and the additional information signal read from the buffer 10 are time-axis multiplexed by the multiplexer 11 and then recorded on the optical disc 13 by the optical recording / reproducing device 12.

At the time of reproduction, the data on the optical disk 13 is reproduced by the optical recording / reproducing device 12, and the demultiplexer 1
At 4, the video signal, the audio signal and the additional information signal are separated, the additional information signal is temporarily held in the buffer 16, and the video signal and the audio signal are expanded by the expander 15. The video signal and the additional information signal are based on the synchronization signal, and the timing device 1
After being synthesized by the image processing device 17 in a state of being synchronized by 8, the analog signal is converted by the D / A conversion device 19 and the additional information is output to the image output device 21 by the video encoder 20 together with the video information. The audio signal is converted into an analog signal by the D / A conversion device 19, and is output by the audio output device 22 by the video encoder 20. At this time, the sound and the image are output in a synchronized state by the timing device 18 based on the synchronization signal.

All of these operations are controlled by the system controller 23.

Regarding a more specific use example of the video disc recorder of the present embodiment configured as described above,
An example will be described in which shooting is performed from the air while skydiving. In this case, the fall velocity, atmospheric pressure, and temperature are measured and recorded at the same time as the shooting, as additional information other than video and audio.

First, the recording operation will be described. After loading the optical disc 13 into the video disc recorder, the speed meter 26, the barometer 27 and the thermometer 28 built in or attached to the video disc recorder are set to the operable state, and the number of items to be measured at the same time (speed in this case, The atmospheric pressure and the air temperature) and the measurement time intervals of the respective measuring devices are set by the operation input unit 24. At this time, each measurement time interval is, for example, 0.5 for the speedometer.
Seconds, barometer 1 second, thermometer 2 seconds can be set independently. Then, start shooting and skydiving. Image input device 1 and voice input device 2 after shooting starts
The video signal and the audio signal taken in from the image pickup processing circuit 4 and the audio processing circuit 5 are converted into digital signals by the A / D converter 7, and the synchronization signals from the synchronization signal generator 8 are added thereto. The data is compressed by the compressor 9. Similarly, the speed signal, the atmospheric pressure signal, and the temperature signal taken from the speedometer 26, the barometer 27, and the thermometer 28 measured at the set measurement time intervals via the additional information signal processing circuit 6 are also A / A, respectively. The digital signal is converted into a digital signal by the D converter 7, the synchronizing signal from the synchronizing signal generator 8 is added, and it is temporarily held in the buffer 10. Thereafter, the data-compressed video signal and audio signal and the buffer 10
The additional information signals of speed, pressure and temperature read from
It is time-axis multiplexed by the multiplexer 11 and recorded on the optical disc 13 by the optical recording / reproducing device 12. At this time, the measurement time intervals of the speedometer 26, the barometer 27, and the thermometer 28 are set to 0.5 seconds, 1 second, and 2 seconds, respectively. The signal is recorded every 15 frames, the atmospheric pressure signal is recorded every 30 frames, and the temperature signal is recorded every 60 frames by time-axis multiplexing.

Next, the reproducing operation will be described. When reproduction is started, the optical recording / reproducing apparatus 12 causes the optical disk 13
The above time-axis-multiplexed video signal, audio signal, and additional information signal are reproduced, separated by the demultiplexer 14, the additional information signal is temporarily held in the buffer 16, and the video signal and audio signal are expanded by the expander 15. To be done.
The video signal, the speed signal, the atmospheric pressure signal, and the temperature signal read from the buffer 16 are combined by the image processing circuit 17 in a state synchronized by the timing device 18 based on the synchronization signal, and are analogized by the D / A converter 19. The signal is converted into a signal, converted into an RGB or composite signal by the video encoder 20, and output to the image output device 21. At this time, the speed, the atmospheric pressure, and the air temperature are output to the part of the image output device 21 together with the image as characters or a graph by the image processing circuit 17. Further, by converting the atmospheric pressure data into altitude data by the arithmetic unit 25 and inputting this altitude data into the image processing circuit 17, it is possible to output the altitude together with the speed, the atmospheric pressure and the temperature.
The type of additional information output to a part of the image output device 21,
The size and position on the screen can be set by the operation input unit 24. Further, the audio signal is converted into an analog signal by the D / A converter 19, and the video encoder 20
Is output from the audio output device 22 in synchronization with the video.

In the above-described use example, when a user or another person takes a picture of a skydiving at a later time, the fall velocity and altitude can only be inferred from the picture, but the structure of the present invention is used. Then, since those values are obtained as numerical data and can be viewed together with the image, the image can be felt more concretely. In addition, although it is not generally known to those who have no experience of skydiving how the temperature changes when descending from the sky to the ground, with the configuration of the present invention, Even if you are not there, you can easily make a simulated experience by looking at the image showing the temperature. That is, according to the configuration of the present invention, by displaying the additional information in addition to the video on a part of the image output device, great utility can be added to the recorded video.

(Embodiment 2) FIG. 2 is a diagram showing another embodiment of the video disk recorder of the present invention. In this embodiment, as in the case of Embodiment 1, an image input device 1, a voice input device 2,
The additional information signal measuring means 3 is integrally configured or the additional information signal measuring means 3 can be attached. The signals input from the image input device 1, the audio input device 2, and the additional information signal measuring means 3 via the image pickup processing circuit 4, the audio processing circuit 5, and the additional information signal processing circuit 6 are digitalized by the A / D converter 7. Converted to a signal. At this time, a sync signal for synchronizing the signals is added from the sync signal generator 8 to each signal. Of these digital signals, the additional information signal is the buffer 10
Is accumulated until the end of shooting. On the other hand, the video signal and the audio signal are data-compressed by the compressor 9, and the multiplexer 1
After being time-axis multiplexed by 1, the data is recorded on the optical disc 13 by the optical recording / reproducing device 12. As shown in FIG. 4, the optical disc 13 includes, in addition to the video and audio recording areas 36, an index information recording area 37 and additional information for writing the presence or absence of additional information, the number of additional information, information for synchronization, and the like. An additional information recording area 38 for writing is provided, and when the recording of the video signal and the audio signal is completed, the additional information signal accumulated in the buffer 10 is added to the additional information recording area on the optical disc 13 by the optical recording / reproducing device 12. 38
The additional information, the number of additional information,
Information for synchronization and the like are recorded in the index information recording area 37 on the optical disc 13 by the optical recording / reproducing device 12.

At the time of reproduction, first, the index information recording area 37 on the optical disk 13 is recorded by the optical recording / reproducing device 12.
The presence / absence of additional information, the number of additional information and the measurement time interval if there is additional information are read, and then the additional information data is reproduced from the additional information recording area 38 on the optical disc 13 by the optical recording / reproducing device 12. Then, the data is accumulated in the buffer 16. After the reproduction of the additional information data is completed, the video / audio data is reproduced from the video / audio recording area 36 on the optical disk 13 by the optical recording / reproducing device 12, separated by the demultiplexer 14 into the video data and audio data, and further expanded. It is extended by the device 15. The video signal and the additional information signal read from the buffer 16 are combined by the image processing device 17 in a state of being synchronized by the timing device 18 based on the synchronization signal, and then converted into an analog signal by the D / A conversion device 19. The converted information is output by the video encoder 20 together with the video information to the image output device 21. Also, the audio signal is converted into an analog signal by the D / A conversion device 19, and is output by the audio output device 22 by the video encoder 20. At this time, the sound and the image are output in a synchronized state by the timing device 18 based on the synchronization signal.

All these operations are controlled by the system controller 23.

In this embodiment, the additional information data is stored in the buffer 10 until the end of shooting, the video and audio data is recorded on the optical disc 13, and then the additional information signal is recorded on the optical disc 13, and the additional information data is reproduced at the time of reproduction. Since the configuration is such that the data is reproduced and stored in the buffer 16 and then the video and audio data is reproduced, the multiplexer and demultiplexer can be simplified in structure and the video disk recorder can be simplified in structure. Further, the additional information data is recorded on the optical disk 13 as a video / audio recording area 36.
Since the recording is performed in the additional information recording area 38 different from the above, if the additional information signal is partially or entirely unnecessary after the video, audio and additional information signals recorded on the optical disk 13, the additional information is recorded. When some or all of the additional information data recorded on the information recording track 38 is erased, and the index information recording area is also partially erased, the number of additional information, information for synchronization, etc. are rewritten and all are erased. Can be rewritten as no additional information, which has the advantage that the editing operation can be simplified.

(Embodiment 3) FIG. 3 is a diagram showing another embodiment of the video disk recorder of the present invention. In FIG. 3, the additional information signal measuring means 3 is configured separately from the image input device 1 and the voice input device 2, and is configured with the additional information signal processing circuit 6, the A / D converter 33, and the communication unit 34. In the following, the portion including the additional information signal measuring means 3 and the like is referred to as the sensor unit 31, the image input device 1, the voice input device 2
A portion formed of the above is called a main body 32.

First, in the sensor section 31, the signal taken in from the additional information signal measuring means 3 via the additional information signal processing circuit 6 is converted into a digital signal by the A / D converter 33. This digital signal is sent to the communication unit 3
The video signal transmitted from the main body 32 via 4, 35,
A synchronization signal for synchronizing with the audio signal is added, and is transmitted to the main body 32 by the communication units 34 and 35 in a wired or wireless manner. Further, control signals such as measurement start and end of the additional information signal measuring means 3 are transmitted from the main body 32 to the communication units 34 and 3.
5 is transmitted. In the main body 32, the sensor unit 3
The digital signal transmitted from 1 is received by the communication unit 35 and accumulated in the buffer 10 until the end of shooting.

On the other hand, the signals fetched from the image input device 1 and the audio input device 2 through the image pickup processing circuit 4 and the audio processing circuit 5 are converted into digital signals by the A / D converter 7 as in the first embodiment. Then, a synchronizing signal for synchronizing the respective signals is added from the synchronizing signal generator 8 and data is compressed by the compressor 9. These video signals and audio signals are time-division multiplexed by the multiplexer 11,
It is recorded on the optical disk 13 by the optical recording / reproducing device 12. As shown in FIG. 4, in addition to the video and audio recording areas 36, the optical disk 13 has an index information recording area 37 and additional information for writing the presence or absence of additional information, the number of additional information, information for synchronization, and the like. An additional information recording area 38 for writing is provided, and when the recording of the video signal and the audio signal is completed, the additional information signal accumulated in the buffer 10 is recorded by the optical recording / reproducing device 12 into the optical disc 13.
The optical recording / reproducing apparatus 12 records the presence / absence of additional information, the number of additional information, information for synchronization and the like in the index information recording area 37 on the optical disc 13 in the upper additional information recording area 38.

At the time of reproduction, first, the index recording area 37 on the optical disk 13 is recorded by the optical recording / reproducing apparatus 12.
The presence / absence of additional information, the number of additional information and the measurement time interval if there is additional information are read, and then the additional information data is reproduced from the additional information recording area 38 on the optical disc 13 by the optical recording / reproducing device 12. Then, the data is accumulated in the buffer 16. After the reproduction of the additional information data is completed, the video / audio data is reproduced from the video / audio recording area 36 on the optical disk 13 by the optical recording / reproducing device 12, separated by the demultiplexer 14 into the video data and audio data, and further expanded. It is extended by the device 15. The video signal and the additional information signal read from the buffer 16 are combined by the image processing device 17 in a state of being synchronized by the timing device 18 based on the synchronization signal, and then converted into an analog signal by the D / A conversion device 19. The converted information is output by the video encoder 20 together with the video information to the image output device 21. Also, the audio signal is converted into an analog signal by the D / A conversion device 19, and is output by the audio output device 22 by the video encoder 20. At this time, the sound and the image are output in a synchronized state by the timing device 18 based on the synchronization signal.

All of these operations are controlled by the system controller 23.

A more specific use example of the video disc recorder of the present embodiment configured as described above will be described.
The case where the shooting target is a long-distance running athlete will be described as an example. In this case, the athlete's pulse rate and blood pressure shall be measured and recorded at the same time as the shooting, as additional information other than video and audio.

First, the recording operation will be described. A sensor unit 31 with a pulse rate monitor 29 and a blood pressure monitor 30 is attached to a subject to be imaged, and the sensor unit 31 is set to an operable state. Body 3
On the second side, after loading the optical disk 13, the number of items to be measured (two in this case, the pulse rate and the blood pressure) and the measurement time interval are set by the operation input unit 24. At this time, each measurement time interval can be set independently as in the first embodiment, but for the sake of simplicity, the measurement time interval for both the pulse rate and the blood pressure is 10 seconds. Then start shooting. At the time of photographing, on the main body 32 side, signals from the image input device 1 and the audio input device 2 are converted into digital signals by the A / D converter 7 via the image pickup processing circuit 4 and the audio processing circuit 5, respectively. A sync signal from a sync signal generator 8 is added to these digital signals, data is compressed by a compressor 9, time-multiplexed by a multiplexer 11, and then a video on the optical disk 13 is recorded by an optical recording / reproducing device 12. It is recorded in the voice recording area 36. In the sensor unit 31, the control signal transmitted from the main body 32 via the communication units 34 and 35 starts or ends the measurement of the pulse rate meter 29 and the blood pressure meter 30. After the measurement is started, the pulse signal and the blood pressure signal taken from the pulse rate meter 29 and the sphygmomanometer 30 through the additional information signal processing circuit 6 are measured by the A / D converter 33, respectively. Be converted. This digital signal is added to the communication units 34 and 35.
A synchronization signal for synchronizing with a video signal and an audio signal transmitted from the main body 32 via the communication unit 3 is added.
It is transmitted to the main body by wire or wirelessly by means of 4, 35. In the main body 32, the digital signal transmitted from the sensor unit 31 is received by the communication unit 35 and accumulated in the buffer 10 until the end of photographing.

At the end of shooting, the additional information data accumulated in the buffer 10 is recorded in the additional information recording area 38 on the optical disc 13 by the optical recording / reproducing device 12, and the shooting time, the presence / absence of additional information, and the additional information exist. For example, the number of additional information or the measurement time interval is written in the index information recording area 37 on the optical disc 13.

Next, the reproducing operation will be described. When the reproduction is started, the optical recording / reproducing apparatus 12 first determines the presence or absence of additional information from the index information recording area 37, and if there is additional information, the number of additional information (in this case, pulse rate and blood pressure). Alternatively, the measurement time interval (both 10 seconds in this case) is read. Next, the optical recording / reproducing device 12 reads all the data of the pulse rate and the blood pressure from the additional information recording area 38 on the optical disc 13, and stores them in the buffer 16. Then, the time-axis multiplexed video and audio signals are reproduced from the video and audio recording area 36, separated by the demultiplexer 14, and then expanded by the expander 15. The video signal and the pulse rate signal and blood pressure signal read from the buffer 16 are combined by the image processing circuit 17 in a state synchronized by the timing device 18 based on the synchronization signal, and converted into an analog signal by the D / A converter 19. The video data is converted and converted into RGB or composite signals by the video encoder 20 and output to the image output device 21. At this time, the pulse rate and the blood pressure are determined by the image processing circuit 1.
Image output device 21 as characters or graphs according to 7
Will be output together with the video. The type of additional information output to a part of the image output device 21, the size on the screen, the position, and the like can be set in the operation input unit 24. Also, the audio signal is converted into an analog signal by the D / A converter 19, and is output from the audio output device 22 in a state of being synchronized with the image by the video encoder 20.

In the above-described use example, the additional information signal measuring means 3 is separated from the image input device 1 and the voice input device 2. Therefore, the additional information signal measuring means 3 is attached to the object to be photographed, and the measured data is imaged. It is possible to record on the same optical disk 13 together with the signal and the audio signal. For this reason, when analyzing the form of a long-distance runner who is the subject of shooting while running by looking at the captured image, in addition to the image, additional information such as pulse rate and blood pressure measured at the time of capturing is recorded in the image output device. Since it can be displayed in part, it is possible to analyze the athlete's exercise ability from the pulse rate, blood pressure, etc. at the same time as running form analysis, etc., and it is possible to add great utility to the recorded video it can. Further, as in the second embodiment, since the additional information data is recorded in the additional information recording area 38 different from the video and audio recording area 36 on the optical disk 13, the video, audio and additional information signals recorded on the optical disk 13 are recorded. If some or all of the additional information signal becomes unnecessary later, the additional information recording track 3
8 erases some or all of the additional information data recorded, and the index information recording area also rewrites the number of additional information when partially erased, information for synchronization, etc., and when all is erased additional information Since it can be rewritten as none, there is an advantage that the editing operation can be easily performed.

In the third embodiment, the sensor unit 31 has the communication unit 34, and the measured additional information is transmitted to the main body 32 at any time so that the main body 32 stores the additional information.
0 is installed in the sensor unit 31, the measured additional information is accumulated in the buffer 10 until the end of the shooting, the sensor unit 31 and the main body 32 are connected after the end of the shooting, the additional information is read into the main body 32 side, and the optical disc 13 is read. It is of course possible to record in the additional information recording area 38. In this case, if the synchronization signal generator 8 is also installed in the sensor unit 31 and the main body 32 and the synchronization signal generator 8 of the sensor unit 31 are synchronized before the start of photographing, the additional information signal to be measured can be obtained. The video signals can be synchronized. In this configuration, the sensor unit 3
1 can be made more compact, and the action of the imaging target to which the sensor unit 31 is attached is not more restricted. Further, in this case, since the measured additional information is stored in the buffer 10 by the sensor unit 31 until the end of shooting, it is easy to use a plurality of sensor units 31 instead of one. At this time, the sensor unit 31 can be attached to a plurality of image capturing targets and images can be captured at the same time, or the sensor units 31 can be attached to different image capturing targets. Then, after the photographing, the sensor units 31 are connected to the main body 32 one by one or all at the same time, and the additional information data accumulated in each sensor unit 31 is recorded in the additional information recording area 38 of the optical disc 13. Of course, at this time, the number of all the additional information is recorded on the index information recording track 37 of the optical disc 13,
The measurement time interval etc. are written.

In the third embodiment, as in the first embodiment, it is of course possible to provide the additional information signal measuring means 3 on the main body 32 side. In this case, for example, in the usage example of the third embodiment, a thermometer is attached to the main body 32 side, the temperature at the time of shooting is measured, recorded in the additional information recording area 38 on the optical disk, and at the time of playback, the long distance to be shot is taken. Image output device 21 for running athlete's pulse rate and blood pressure as well as temperature
It is also possible to know the relationship between the temperature and the athlete's pulse rate and blood pressure by outputting to a part of the.

Although the additional information signal is combined with the video signal and the audio signal in the above embodiment, it is of course possible to combine the additional information signal with only the video signal or the audio signal. Further, as the recording medium, not only an optical disk but also a magnetic disk capable of high-density recording / reproducing can be used.

[0044]

As described above, according to the present invention, it is possible to simultaneously record video, audio and information associated with them on one optical disk, and at the time of reproduction, the video and the additional information are combined. It becomes possible to output to the image output device. As a result, the user can see the temperature,
It becomes possible to add various other information at the time of photographing such as humidity as numerical data, and the recorded photograph becomes more useful.

Since the additional information measuring means can be separated from the main body, the additional information measuring means can be attached to the object to be photographed, and various information of the object to be photographed, for example, when the person to be photographed is a pulse of the object to be photographed. , Blood pressure, etc. can be recorded on one optical disk together with video and audio. Therefore, it becomes possible to capture the movement of the object to be captured as an image and at the same time the physical condition and athletic ability of the object to be captured as numerical data, and the recorded image becomes more useful.

Further, the recording area of the optical disk is divided into an area for recording video and audio, an area for recording additional information, the presence / absence of additional information, the number of additional information, if any, and an area for recording information for synchronization. Since it is divided, the editing operation such as rewriting or erasing the additional information signal after the photographing is completed can be easily performed.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a video disc recorder of the present invention.

FIG. 2 is a diagram showing another embodiment of the video disc recorder of the present invention.

FIG. 3 is a diagram showing another embodiment of the video disc recorder of the present invention.

FIG. 4 is a diagram showing an embodiment of an optical disc of the present invention.

[Explanation of symbols]

 1 Image Input Device 2 Audio Input Device 3 Additional Information Signal Measuring Means 4 Imaging Processing Circuit 5 Audio Processing Circuit 6 Additional Information Signal Processing Circuit 7, 33 A / D Converter 8 Synchronization Signal Generator 9 Compressor 10, 16 Buffer 11 Multiplexer 12 optical recording / reproducing device 13 optical disk 14 demultiplexer 15 expander 17 image processing circuit 18 timing device 19 D / A converter 20 video encoder 21 image output device 22 audio output device 23 system controller 24 input operation unit 25 arithmetic circuit 26 speedometer 27 barometer 28 thermometer 29 pulse meter 30 sphygmomanometer 31 sensor section 32 main body 34, 35 communication section 36 video and audio recording area 37 index information recording area 38 additional information recording area

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location H04N 5/93 C (72) Inventor Tsuneo Ide 3-3-5 Yamato, Suwa-shi, Nagano Seiko Epson Within the corporation

Claims (8)

[Claims] 1. A video disc recorder for converting a video signal and an audio signal accompanying the video signal into a digital signal and recording and reproducing the same on an optical disk, and means for measuring an additional information signal associated with the video signal other than the audio signal. And converting the additional information signal into a digital signal, recording the digital signal into the optical disc together with the video signal and the audio signal, and at the time of reproduction, synthesizing the video signal and the additional information signal, Outputting the additional information together with the video signal to a part of the image output device,
A video disk recorder which outputs the audio signal to an audio output device. 2. When the digital video signal, the audio signal and the additional information signal are recorded on the optical disk, the video signal and the audio signal are data-compressed and recorded on the optical disk. Claim 1 characterized by
The described video disc recorder. 3. The data-compressed additional information signal and the data-compressed data signal and the audio signal, and the digital signal-converted additional information signal are recorded on the optical disc. 3. The video disk recorder according to claim 2, wherein the video signal and the audio signal are time-axis multiplexed and recorded on the optical disk. 4. The optical disk, wherein the video signal and the audio signal are time-axis-multiplexed when the digital information-added additional information signal and the data-compressed video signal and the audio signal are recorded on the optical disk. The additional information signal is stored in a buffer until the end of shooting, is read from the buffer after the end of shooting, and is recorded at a location different from the location where the video signal and the audio signal are recorded on the optical disc. The video disc recorder according to claim 2, wherein 5. An optical disk recording area, an area for recording a video signal and an audio signal, an area for recording an additional information signal, the presence or absence of the additional information signal, the number of additional information, and a measurement time interval of the additional information. An optical disk characterized by being divided into areas for recording data such as. 6. The video according to claim 3, wherein the additional information measuring unit is configured integrally with the video disc recorder or the additional information unit can be attached to the video disc recorder. Disk recorder. 7. The additional information measuring means is configured separately from the video disc recorder, and a synchronization signal and the additional information signal for synchronizing the additional information measuring means and the video disc recorder are provided. The video disk recorder according to claim 3 or 4, further comprising a communication unit for transmitting and receiving. 8. The additional information measuring means is configured separately from the video disk recorder, and a buffer for accumulating the digitalized additional information signal in the additional information measuring means until photographing is completed. Have, connect to the video disk recorder after shooting,
5. The video disk recorder according to claim 4, wherein the additional information signal is read from the buffer and recorded in an area of the optical disk different from an area in which the video signal and the audio signal are recorded.