JPH0454784A - System and apparatus for processing video signal of medium information - Google Patents

Abstract

PURPOSE:To realize the signal processing system processed unifiedly by converting different medium information into a form of a standard video signal. CONSTITUTION:An analog audio input signal is A/D-converted by an audio signal recording processing circuit 1-2, the result is overlapped with rearrangement through the use of shift registers and converted into an edit data. A data is stored continuously for a prescribed time into a recording time axis conversion memory 2-2. The audio data after edition stored in the memory 2-2 is read and added to a blanking level at an adder 5 via a data selector 3 and a selector 4. A synchronizing signal (SYNC) is synthesized with an output of the adder 5 so as to attain a level of the synchronizing signal only for the period of the SYNC through the use of a data selector 6 and the result is recorded onto an optical disk via a recording modulation circuit 9, a recording amplifier 10 and an optical head.

Description

[Detailed description of the invention] [Industrial application field]

The present invention provides a video signal processing method for multimedia information;
More specifically, it converts multimedia information such as a video moving image signal, video still image signal, audio signal, code data signal, etc. into a signal form consisting of an image (luminance) part and a composite synchronization signal like a television signal. , relates to signal processing methods for transmission, recording, and reproduction. 2. Description of the Related Art In order to handle different media information in a unified manner, a method of converting it into a video signal, which is said to have the largest amount of information, is generally adopted. Conventionally, in order to convert an analog signal such as an audio signal into a video signal, PCM (pulse code modulation)
A method is known, and the general principle of the method will be explained using FIG. 13. FIG. 13(a) shows an analog audio input signal, which is converted into a time-series digital code by sampling processing at a predetermined frequency and converted into a video (
The brightness information is compressed and inserted into an effective area other than the blanking period of the television (TV) signal as shown in FIG. In addition, the structure of an optical disc for the purpose of recording multimedia information is described in Matsushita Technical Report Vol. 35, pages 82 to 87.
An example has been published in which the format of a digital coded optical disc has been improved and is based on a still image video signal with a relatively slow transfer rate, as described in the paper published in April 1989, written by Kazuaki Ohara.

[Problem to be solved by the invention]

The first prior art described above has a problem in that, even when recording an audio signal with a narrow frequency band compared to a video signal, for example, one second of the audio signal must be recorded as one second of the video signal. Further, in the second conventional technology, the track of an optical disk is divided into a plurality of fixed length sections, and each section has an identification (ID) bit, address bit,
Since information bits and correction code bit areas are provided, there is a problem in that a video signal (moving image) such as a normal television signal cannot be included in the multimedia information. The main objective of the present invention is to realize a signal processing method that can process different media information in a unified manner by converting it into a standard video signal format. Another object of the present invention is to realize an apparatus for recording and reproducing media information such as audio signals and data signals as standard video signals. SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a digitally encoded media input signal to be processed at a maximum brightness level greater than the blanking level of the image signal of the standard video signal. It is converted into the following code signal for recording, playback, or transmission. A preferred form of signal conversion is to stack and edit according to bit weight in a range that is at least 1 bit less than the number of word constituent bits that make up the luminance signal of a standard video signal, and then add a blanking level to the stacked and edited data. Use the means to do so. Here, the term "standard video signal" refers to a video signal that consists of an image (luminance) signal section that represents brightness and one color information, and a control signal section for scanning such as a composite synchronization signal and color burst, like a normal television signal. means. "Media input signal" is a digitally coded analog signal such as an audio signal, digital code data,
Includes image signals, etc. alone, of the same type, or a combination of different types. In addition, for multiple different media input signals, an independent stacking editing circuit function is provided corresponding to each input signal, and multiple data outputs of the editing circuits are arbitrarily selected, and the selected data is blocked. The ranking levels are added to form a pseudo-luminance signal of a standard video signal.

[Effect]

In the present invention, since the media information to be processed is converted into a code signal that is greater than the blanking level of the image signal of the standard video signal and less than the maximum brightness level, it is treated exactly the same as the brightness signal of the standard video signal, and the overflow etc., the pseudo luminance signal becomes below the blanking level and is prevented from erroneously operating as a synchronization signal.
In the recording and reproducing apparatus according to the present invention, data in which media information is stacked and coded is digitally converted into a blanking signal level specific to a video signal to the extent that the number of bits constituting a word for recording an image signal is one or more bits smaller. It is possible to convert input information of any media into a standard video signal having the blanking level without overflow even when adding to the blanking level, and when recording and playing back media information, standard video including moving images It can be easily connected to a recording and reproducing device such as an optical disk device that records and reproduces signals, and can record and reproduce signals.

【Example】

Before providing a detailed description of the present invention, a general description of standard video signals will be provided. FIG. 11 is a partial waveform diagram of an NTSC television signal. In the same figure, for the luminance signal part, the upper direction of the drawing is the white (bright) level direction, and from there
．． The potential lowered by 7 volts is the blanking level, and the negative pulse-like waveform with an amplitude of 0.3 volts from the blanking level is the (composite) synchronization signal, and the blanking period immediately after the synchronization signal is used for color synchronization. color burst signals (approximately 3.58 MHz) are present. FIG. 12 is a digital code table for the NTSC television signal explained in FIG.
An example of a bit configuration and an example of an 8-bit configuration are shown. The digital video optical disk device used in the following embodiments of the present invention will be described assuming that the brightness level is 8 bits. FIG. 1 shows one example of a media information recording and reproducing apparatus implementing the multimedia information video signal processing method according to the present invention.
The configuration of an example is shown. The configuration of the device of this embodiment can be roughly divided into standard video signals,
A recording control unit 100 that converts media information of audio signals and code data signals into the form of digitized standard video signals, a video optical disk peripheral section 102 and various types of media information converted into the form of digitized standard video signals reproduced from the optical disk. playback control unit 1 that restores media information of
It is divided into 01 and 01. For convenience of explanation, the recording control unit 100
Although an embodiment is shown in which the video optical disk peripheral section 102 and the playback control section 101 are provided, the recording section and the playback section may be separated and configured as a dedicated device for the recording device or the playback device. The recording control unit 100 includes a video signal recording processing circuit 1-1 that separates a synchronization component from a standard video signal input and converts it into a digital code, an audio signal recording processing circuit 1-2 that digitizes an audio signal and performs stack editing, and code data. a code data signal processing circuit 1-3 for stacking and editing; time axis conversion memories 2-1, 2-2 and 2-3 for recording;
A data selector 3 that selects the output of the memory group 2-1.2-2.2-3, a data selector 4 that replaces the blanking period with a zero code, an adder 5 that adds the blanking level, and a composite synchronization It is comprised of a data selector 6 for synthesizing signals and a synchronization signal generator 7 for NTSC television signals. The video optical disk peripheral section 102 has an error correction code (
A recording modulation circuit 9 that has functions such as addition of ECC) and modulation (for example, D2 modulation) for recording on an optical disk, a recording amplifier 10, a playback amplifier 11, and a playback circuit that has functions such as demodulation of modulation codes and automatic error correction. The playback control unit 101, which is composed of a demodulation circuit 12 and an optical disc main body, includes a synchronization determination circuit 13 that extracts and separates a synchronization signal and a blanking signal period from a digitized standard video signal reproduced from an optical disc, and a blanking level determination circuit 13. a subtracter 14 that subtracts the frequency band of the video signal, a data distributor 16 that distributes the data to each media based on the media identification data embedded in the vertical blanking period of the reproduced video signal, and a data distributor 16 that divides the frequency band of the video signal into a frequency specific to each media information. a video signal reproduction processing circuit 18- having functions such as reproduction time axis conversion memory units 17-1, 17-2 and 17-3 for converting into a frequency band, and a function of converting a digital signal into an analog signal and synthesizing an NTSC synchronization signal; 1 and an audio signal reproduction processing circuit 18- which converts the accumulated and edited data back to its original code and converts it into analog.
2 and a code data signal reproducing processing circuit 1 that returns the code data that has been stacked and edited to the original code and transfers it.
8-3. The operation of the apparatus shown in FIG. 1 will be explained below using analog audio input as an example of multimedia information.The analog audio input signal is processed by the audio signal recording processing circuit 1-2 using an audio signal sampling clock (48 k in the embodiment). AD conversion is performed at the timing of Hz), and the data is converted into stacked editing data by rearrangement using a shift register. The converted data is transferred to a recording time axis conversion memory 2-2 consisting of a FIFO (first-in first-out) memory for a predetermined period of time (approximately 16 seconds in the example) at a speed of 8/7 times the sampling clock. Remember. After that, the subcarrier signal of the video signal (Fsc=3.5
8 MHz) four times the frequency (14,318MHz)
is passed through the AND circuit 8 only during periods other than blanking, the edited audio data stored in the time axis conversion memory 2-2 is read out, and the blanking level ( In the example, 1
"3C" in hexadecimal representation, "00111100" in binary representation
”) is added by the adder 5.The output of the adder 5 is synthesized using the data selector 6 so that it becomes the synchronization signal level (“02” in hexadecimal notation) only during the period of the synchronization signal (SYNC), and It is recorded on an optical disk via a recording modulation circuit 9, a recording amplifier 10, and an optical head.Reproducing from an optical disk is basically the reverse operation of recording. That is, it passes through an optical head, a reproduction amplifier, and then a reproduction demodulation circuit. The output reproduced in step 12 is subjected to separation of the synchronization signal included in the digital video signal after error correction, judgment of blanking timing, reading of media identification data, etc. in a synchronization judgment circuit 13, and a blanking level (
"3C" in hexadecimal) is subtracted, and based on the media identification data recognized by the synchronization determination circuit 13, the data distributor 1
6, write pulses of 4 times the subcarrier frequency (14,318 MHz) to the audio time axis conversion memory 17-2 using write pulses inhibited by the AND gate 15 only during the blanking period, instantaneously (approximately 30 minutes). 1 second). The stacked and edited audio playback data stored in the conversion memory 17-2 is sent to the audio signal playback processing circuit 18-
2, the data is restored to digitized audio data at an audio sampling frequency (48 kilohertz in the embodiment), and output as analog audio data via a DA converter. FIG. 2 is a logical block diagram embodying the audio signal recording processing circuit 1-2 shown in FIG. The analog audio input signal is
It is converted into an 8-bit parallel digital code by the AD converter 20, and then the two-sided stacked (laminated) editing circuit 2
1-1 and 21-2. On the other hand, the pulse output of the original oscillation pulse generator 25 for audio signal sampling (384 kHz in the embodiment) becomes an input signal to the 1/8 frequency division counter 26 and the 1/7 frequency division counter 27. The output pulse of the 1/8 frequency division counter 26 (48k
Hz) acts as a sampling timing pulse for the AD converter 2o, and at the same time the AND gate 23-1
When the AND condition is satisfied, it becomes the input clock pulse (INCP) of the stack editing port @21-1 on side A, and on the contrary, when the condition of the AND gate 23-2 is satisfied. This becomes the input clock pulse of the stacking editing circuit 21-2 on the B side. Further, the output pulse (approximately 54.86 kHz) of the 1/7 frequency division counter 27 is another 1/8 frequency division counter 27.
The frequency division counter 28 is triggered, and the output pulse (approximately 6.86kHz) of the counter 28 is transmitted to the 1/8 frequency division counter 2.
At the same time as the reset input of 6, the switching flip-flops 29 of the two stacked editing circuits 21-1 and 21-2 are operated inverted. In state 11 where the flip-flop 29 is set (state 1#4 where the Q output side is "true"), the AND gate 23-2 for the 8-side input clock and the AND gate 24-1 for the A-side output cuff lock each have a pulse. It becomes a passable condition, and on the other hand, it becomes a reset state (
When the Q output side is in the ``false'' state), the AND gate 23-1 for the A-side input clock and the AND gate 2 for the 8-side output clock
4-2 are in a state where pulse signals can pass through. In addition. The output signal of the 1/7 frequency division counter 27 is branched, passes through the AND gates 24-1 and 24-2, and outputs the output clock pulse (OUTCP) of either of the stack editing circuits 21-1 and 21-2. ), and at the same time, the recording rIIJ axis conversion memory (2-2 in Figure 1) connected to the subsequent stage
) is the write pulse. Editing circuits 21-1 and 21-
2 is output by the selector 22 as a continuous digital output. In this way, two-sided editing circuit 2
By alternately using 1-1 and 21-2, continuous input signals can be rearranged and edited. Figure 3 shows the stacking editing circuit 21-1 or 21 of Figure 2.
2 is a block diagram illustrating an example in which the output signal 2 is realized using a parallel input/parallel output type shift register (for example, IC8N74198N manufactured by Texas Instruments, etc.). A.D.
The 8-bit output data 10, 11, 12, . Herod. Further, the parallel output signal of the first stage shift register 3o is connected to the parallel input pin of the second stage shift register 31, and similarly, the parallel output of the second stage shift register 31 is connected to the parallel input pin of the third stage shift register 32. , the parallel output of the third stage shift register 32 goes to the parallel input pin of the fourth stage shift register 33, the parallel output of the fourth stage shift register 33 goes to the parallel input pin of the fifth stage shift register 34,
The parallel output of the fifth stage shift register 34 is connected to the parallel input pin of the sixth stage shift register 35, and the parallel output of the sixth stage shift register 35 is connected to the parallel input pin of the seventh stage shift register 36. Data is sequentially transferred and shifted at each timing of the manual clock pulse (INCP). In this way, when the 7 doujinshi clock pulses are input and all of the shift registers 30 to 36 are filled with data, the input clock pulse (I
NCP) input is blocked (AND gate 23 in Figure 2).
), now the output clock pulse (OUTC
P) is input 8 times in a row. At the timing of the first output clock pulse, seven 2<7> bits of the AD conversion data are output as stacked data, and in the same way, every time the output clock pulse (OUTCP) is input, the 2<6> bits are stacked. , 2 to the 5th power bit, 2 to the 4th power bit, and so on.
Finally, data in which seven 2 to the 0th power bits are stacked is output by the action of the shift register. After that, the initial state is returned, the input clock pulse is input again seven times, and the above operation is repeated. Continuous stacked editing is performed. Specific examples of this stacked editing operation are shown in Figures 4, 5, and 6. I will explain using FIG. 4 is a time chart showing a state in which an input analog signal is AD converted and edited into a digitized video signal. Figure (a) shows a state in which an analog input signal is sampled and AD converted, and at the sampling point aO it is "AO" in hexadecimal representation, or "1" in binary representation.
The size is 0100000", and the sampling point a
1 is “Fl” in hexadecimal representation, and the same < a 2 points is “’D”
AD conversion is performed to "DE" for the F" and a3 points, "8F" for the 84 points, "3F" for the 85 points, and "15" for the 86 points, respectively. The sampling period is approximately 21 microseconds (48
kHz), it will take approximately 125 microseconds from the aO point to the 86th point, and then the data will be edited as stacked data in the stacked editing circuit. The same figure (b
) is a timing diagram for converting a standard video signal into a digital code, and shows that the sampling data at the seven points are time-compressed (125 microseconds becomes 0.56 microseconds) and converted into a video signal. The figure (c) shows the AD conversion data group (“A” in hexadecimal notation).
The data shown is the result of stacking and editing O"Fl"DE"DF"8F""3F"15"), and (d) in the same figure shows the data obtained by adding the blanking level ("3c" in hexadecimal notation) to the stacked data group. The final digitized video signal is shown. FIG. 5 summarizes the changes in the data conversion shown in FIG. 4 above. FIG. 6 is a diagram showing the principle of operation of the stack editing circuit. The solid line frame indicates AD converted data, and the dashed line frame indicates edited data stacked by bit weight.
This shows that the byte has been converted into 8 bytes of 7-bit configuration. According to the above embodiment, even if blanking level addition processing is performed for the purpose of converting even a relatively low-frequency analog input signal such as an audio signal into a video signal, unexpected situations such as overflow will not occur. Since there is no signal, it can be treated as a luminance (image) signal of a standard video signal. A second embodiment of the present invention will be described using FIG. 7. This figure shows a modification of the signal processing circuit shown in FIG. 2 of the first embodiment, which processes a plurality of analog inputs as multimedia information. The overall configuration of the media information recording and reproducing apparatus is the same as that shown in FIG. Analog input #0 is the first A
The output of the pulse generator 25 is input to the D converter 40, and the output of the pulse generator 25 is divided by a 1/8 frequency dividing counter 54. AD conversion is activated by the frequency divided output signal, and the output of the AD converter 40 is converted into parallel hexagonal series output shift register (for example, Texas Instruments IC3N74165)
N) in parallel to the pulse generator 25
It is output as serial data at the clock timing of , and becomes 2 to the power of 0 bits through stacking and editing. Similarly, analog input #1 is passed through the AD converter 41 and shift register 48 to the first power of 2 bits, and analog input #2 is A.
Analog human power #3 passes through the D converter 42 and shift register 49 to 2 to the power of 2 bits, analog human power #3 passes through the AD converter 43 and shift register 5o to 2 to the third power of bits, and analog human power #4 passes through the AD converter 44 and shift register 51 to analog Human power #5 passes through the AD converter 45 and shift register 52, and analog human power #6 passes through the AD converter 46 and shift register 53, respectively, and is output as 2 to the 4th power, 2 to the 5th power, and 2 to the 6th power of the edited data bits. . The subsequent operations are the same as those in the first embodiment, and the explanation will be omitted. According to the second embodiment, low-frequency analog signals such as audio information can be transmitted through multiple channels (7 channels in this embodiment, but up to 9 channels are possible when using a 10-bit optical disc). It becomes possible to perform composite processing and handle it uniformly as a standard video signal. FIG. 8 is a diagram showing a third embodiment of the present invention, and the overall configuration of the recording/reproducing apparatus is the same as that in FIG. 1 described in the first embodiment,
FIG. 8 shows the code data signal processing circuit 1- in FIG.
Corresponds to 3. Further, the detailed operations are the same as those in FIG. 2 of the first embodiment, so the same parts are given the same numbers, the explanation of the overlapping operations will be omitted, and only the differences from FIG. 2 will be explained. The 8-bit digital code signal input is input as it is to the stacking editing circuits 21-1 and 21-2, and the data strobe signal accompanying the code data input is sent to the 1/8 frequency divider circuit 26 and the 1/7 frequency divider circuit 26. circuit 27
The output of the 1/8 frequency divider circuit 26 is used as the input clock pulse (I
NCP), and the output of the 1/7 frequency divider circuit 27 becomes the output clock pulse (OUTCP) of the stack editing circuit 21. The outputs of the two-sided stacked editing circuits 21-1 and 21-2 are alternately selected by the data selector 22, and
It is edited and converted into a bit-structured code and output continuously. As described above, according to the third embodiment, since code data having an 8-bit structure is also converted into a 7-bit structure according to the weight of the bit, it is possible to add a blanking level to the code data to obtain a standard video signal. FIG. 9 shows a fourth embodiment of the present invention, and the overall configuration of the recording/reproducing apparatus is the same as that in FIG. 1 showing the first embodiment, and the code data in FIG. 1 is the same as in the third embodiment. FIG. 3 is a block diagram embodying a recording processing circuit 1-3. 7 channels of digital code data #0 to #6 can be set simultaneously in the latch register 60 (for example, IC8N74L5374N manufactured by Texas Instruments) using the data strobe signal attached to the code data input. The output is stacked and edited code data output using the data strobe signal as a write clock to the recording time base conversion memory. The subsequent operations are the same as those in the first embodiment, and will be omitted since they are redundant. According to the fourth embodiment described above, it is possible to easily convert a large number of code data inputs into 7-bit structured data stacked according to bit weight, and then add a blanking level to convert the data into a standard video signal. It becomes possible to handle them in a unified manner. FIG. 10 is a block diagram showing a fifth embodiment of the present invention, which has a configuration in which the optical disk body of the first embodiment (FIG. 1) is removed. That is, the multimedia information converted into a standard video signal by the recording control section 100 is transmitted as is through a video digital communication line, and the reproduction control section 101 receives it and restores it to the original media information. According to the fifth embodiment, it is possible to carry not only video signals but also all kinds of information such as audio and code data on a standard video signal communication line. Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and includes, for example, those using digital video tape as the recording/reproducing medium. The present invention can also be implemented even if two still images of high-definition television (HDTV) are used as the multimedia information. Furthermore, by reducing the number of stacked editing stages, an analog input type video optical disk device may be used. Furthermore, a plurality of different media information may be combined (for example, two channels of audio information and five channels of text information) to be recorded and played back on a single video optical disk device.

【Effect of the invention】

According to the present invention, approximately 8 seconds of sound quality equivalent to DAT (digital audio tape), that is, audio with a 16-bit configuration of 48 kilohertz samples, can be produced using two standard video signals.
Since it is possible to record on a video optical disk using the screen time (16.5 milliseconds), it is possible to construct an efficient multimedia compatible optical disk system. In addition, a large number of completely different audio information 1 such as DAT output,
Approximately 1 second of audio from 7 to 9 channels, such as CD (compact disc) output and FM broadcast output, can be recorded on a video optical disc using two screens (16.5 milliseconds) of standard video signals. Therefore, it is possible to construct an efficient multimedia compatible optical disk system. Also, for example, 8 characters sent at a speed of 1200 characters per second.
Approximately 240 seconds of bit-structured character data, that is, approximately 285,000 characters, can be converted into one standard video signal (approximately 33 milliseconds) and recorded on a video optical disc. This has the effect of building an efficient multimedia compatible optical disk system. In addition, character code data sent from many terminals,
For example, in a case where data is sent from seven terminals at a speed of 1,200 characters per second, all character data for approximately 35 seconds is converted to one screen of standard video signal (approximately 33 milliseconds), and the Since it can be recorded on an optical disc, it is possible to construct an efficient multimedia compatible optical disc system. In addition, because a large number of different media information can be converted into standard video signal formats at the flip of a switch, all kinds of media information, from video to code data, can be stored in files without the need for multiple optical disk systems. Therefore, it is possible to construct an efficient multimedia compatible optical disk system.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of a multimedia information recording and reproducing apparatus according to the present invention, FIG. 2 is a block diagram of an audio signal recording processing circuit 1-2 shown in FIG. 1, and FIG. FIG. 4 is a block diagram of the stack editing circuit 21.
, FIG. 3 is a conversion time chart diagram for explaining FIG. 3, FIG. 5 is a data conversion transition diagram for explaining FIGS. 2 and 3, and FIG.
7 is a block diagram of a signal recording processing circuit in the second embodiment of the multimedia information recording and reproducing apparatus according to the present invention, and FIG. 8 is a block diagram of the signal recording processing circuit in the second embodiment of the multimedia information recording and reproducing apparatus according to the present invention. FIG. 9 is a block diagram of the signal recording processing circuit in the fourth embodiment of the multimedia information recording and reproducing apparatus according to the present invention, and FIG. An overall configuration diagram showing an example of the standard NTSC
A waveform diagram of the video signal, Fig. 12 is a digital code table of the standard NTSC video signal, Fig. 13 is an explanation of how to write PCMC 1...signal processing circuit for recording, 2... time axis conversion memory for recording, 3 ...Data selector for media selection, 5
...Blanking level adder, 6...Data selector for synchronous synthesis, 13...Synchronization determination circuit, 14...
Blanking level subtractor, 16... data distributor,
17... Time axis conversion memory for reproduction, 18... Signal processing circuit for reproduction, lOO... Recording control unit, 101...
Playback control section. Representative Patent Attorney Susuki 1) Yukiyo Tori Figure 3 Figure 4 Figure 5! M A yo ε; to m r+0 RO's 6th Figure 1 Utterensta 9th Figure 10 Figure 11 Flash Figure 12

Claims (1)

[Claims] 1. A video signal processing method that converts a signal obtained by converting digital media information or analog media information into a digital signal into a video signal including a composite synchronization signal and a luminance signal, and records, reproduces, or transmits the video signal. In this step, the digital media information or the signal obtained by converting the analog media information into a digital signal is edited and layered according to bit weight in units of multiple code signals, and the blanking level is digitally added to the edited and layered signal. 1. A video signal processing method for media information, characterized in that the video signal is converted into a pseudo luminance signal, and a composite synchronization signal is added to record, reproduce, or transmit the signal as a digital video video signal. 2. a first means for converting one or more types of media information to be recorded into a luminance signal of a digital video video signal;
A medium having second means for adding a composite synchronization signal to the luminance signal to create the digital video video signal, and a third means for modulating the digital video video signal created by the second means and recording it on a recording medium. In the information recording device, the first means includes an editing circuit that converts the bit configuration of the plurality of digital code signals and converts them into a plurality of other digital code signals; 1. A recording device for media information, comprising: an adding means for digitally adding a blanking level to a blanking level. 3. The media information recording apparatus according to claim 2, wherein the recording medium is an optical disc. 4. In claim 2 or 3, the editing circuit collects bits of the plurality of digital code signals having equal weights and records them on the recording medium by one bit less than the number of bits of the luminance signal. 1. A recording device for media information, comprising a circuit for converting into a plurality of digital code signals having the above-mentioned number of bits. 5. Claim 2, 3 or 4, wherein the plurality of types of media information are a plurality of analog signals, and the editing circuit is a circuit that converts each of the plurality of analog signals into parallel digital code signals. , a plurality of parallel-to-serial conversion circuits that convert each of the above-mentioned parallel digital code signals into time-series serial data, and the outputs of the above-mentioned plurality of parallel-to-serial conversion circuits are accumulated and edited, thereby converting the above-mentioned and other data into a single parallel data. A media information recording device having a circuit for generating multiple digital code signals. 6. Claim 2, 3 or 4, wherein the plurality of types of media information are a plurality of digital code data signals, and the editing circuit converts each of the plurality of digital code data analog signals into parallel digital code signals. , a plurality of parallel-to-serial conversion circuits to convert each of the above-mentioned parallel digital code signals into time-series serial data, and the outputs of the above-mentioned plurality of parallel-to-serial conversion circuits are stacked and edited to create a single A media information recording device having a circuit for converting the above-described other plurality of digital code signals into parallel data. 7. An apparatus for reproducing media information from a recording medium recorded by the video signal processing method of media information according to claim 1, comprising a demodulation circuit for demodulating an electrical signal of a digital video signal from the recording medium. , a subtraction circuit that separates a pseudo-luminance signal from a digital video video signal and subtracts a blanking level of the luminance signal from a code signal of the pseudo-luminance signal; and a signal that converts the output code signal of the subtraction circuit into media information. It has a treatment circuit. 8. A media information recording and reproducing device comprising the media information recording device according to any one of claims 2 to 6 and the media information reproducing device according to claim 7.