JP2002320245A - Method and apparatus for transmitting data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable serial transmission of a data sequence for forming a 720P signal, in which the number of quantizing bits is 10 bits or more or, and a Key signal data sequence regarding it to be suitably realized by utilizing the existing circuit constituting element. SOLUTION: A method for transmitting data comprises steps of executing a processings for obtaining first and second 20-bit word column data, in which Y data sequence for forming the 720P signal in which the number of quantizing bits is set to 10 bits or 12 bits for a PB/PR data sequence or a G data sequence for forming the 720P signal, a B data sequence and an R data sequence, a Key signal data sequence having a data format equivalent to that of a Y data sequence of G data sequence, the B data sequence and the R data sequence and a word transmission the rate of each being set to 74.25 MBps, obtaining first and second serial data, based on the first and second 20-bit ward column data, and transmitting them through optical fiber transmission lines 19 and 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The invention described in the claims of the present application has a feature that the number of effective lines in each frame is 72.
Digital data having a quantization bit number of 10 bits, 12 bits, 14 bits or 16 bits, representing video signal information which is set to 0 lines and the number of effective data samples in each line is set to 1280 samples; The present invention relates to a data transmission method for serially transmitting additional information data related thereto, and a data transmission device provided for carrying out the method.

[0002]

2. Description of the Related Art In the field of video signals, digitization has been attempted from the viewpoint of diversifying transmitted information and improving the quality of reproduced images. For example, digitalization is performed using digital data representing video signal information. High Definition Television (High Definiti)
on Television: HDTV) systems and the like have been proposed. A digital video signal (hereinafter, referred to as an HD digital video signal) under the HDTV system is formed, for example, according to a standard established by the Broadcasting Technology Association (BTA), and Y, P _B / P _R Format and G, B, R format. Y, if the P _B / P _R format, Y denotes a luminance signal, P _B and P _R denotes a color difference signal. Also,
In the case of the G, B, and R formats, G, B, and R mean a green primary color signal, a blue primary color signal, and a red primary color signal, respectively.

[0003] Y, HD digital picture signal of P _B / P _R format, frame rate 30Hz or 30/1.
001 Hz (in this application, any of these is 30H
called z. ), Each frame image is a signal for interlaced scanning that is formed by being divided into a first field image and a second field image, and follows a data format as shown in FIG. 20, for example. You. The data format shown in FIG. 20 includes a luminance signal data sequence (Y data sequence) representing luminance signal information in a video signal as shown in FIG.
A color difference signal data sequence (P _B / P _R data sequence) representing color difference signal information in the video signal, as indicated by B of 0, and each of the Y data sequence and the P _B / P _R data sequence is a quantum The number of coded bits is 10 bits, so that each of the word data forming it has a 10-bit configuration, and the word transmission rate is, for example, 7 bits.
4.25 MBps. And in FIG. 20A,
Has been shown a portion of the video data unit in the line blanking section and the front and rear thereof in each line unit in the Y data sequence and, in FIGS. 20 to of B, in each line unit in the P _B / P _R data sequence The line blanking part and a part of the video data part before and after the line blanking part are shown.

In the Y data sequence, immediately before each video data portion, four words (3 words each having a 10-bit configuration) are used.
FF (Y), 000 (Y), 000 (Y), XYZ
(Y) (3FF, 000 and XYZ are hexadecimal expressions, and (Y) represents a word in the Y data series.)).
V: Start of Active Video), and four words (3FF (Y), 000 (Y), 000) each having a 10-bit configuration immediately after each video data part.
(Y), XYZ (Y)), and timing reference code data (EAV: End of Active Video).
Similarly, P _B / P be in the _R data series, just before each image data unit, four words, each of which is a 10-bit configuration (3FF (C), 000 ( C), 000 (C), X
YZ (C) (3FF, 000 and XYZ are hexadecimal representation, (C) is P _B / P _R data indicating that the word in the sequence.)) Consisting of the timing reference code data: SAV is arranged Immediately after each video data section, 4 words (3FF) each having a 10-bit configuration
(C), 000 (C), 000 (C), XYZ (C))
The timing reference code data is composed of EAV. Of course, Y data sequence in the timing reference code data: EAV and SAV Each of the, Y data is arranged in each line blanking section in the sequence, also, P _B / P _R data sequence in the timing reference code data: EAV and SAV each is arranged in each line blanking section of the P _B / P _R data sequence.

[0005] In the four words (3FF, 000,000,000,000, XYZ) indicated with (Y) or (C), the first three words (3FF, 000,000,000,000) are word-synchronous or line-synchronous. The last word (XYZ) is used to identify the first field and the second field in the same frame, or the timing reference code data: SAV and the timing reference code data: This is for discrimination from EAV (the same applies hereinafter).

The G, B, and R format HD digital video signals are also interlaced signals at a frame rate of 30 Hz, and follow, for example, a data format as shown in FIG. You. FIG.
The data format shown in FIG. 1 includes a green primary color signal data sequence (G data sequence) representing green primary color signal information in a video signal as shown in FIG.
1B, a blue primary color signal data sequence (B data sequence) representing blue primary color signal information in a video signal, and a red color representing red primary color signal information in a video signal, as shown in FIG. 21C. And a primary color signal data sequence (R data sequence). Each of the G data sequence, B data sequence, and R data sequence has a quantization bit number of 10
Each of the word data forming the bits has a 10-bit configuration, and the word transmission rate is, for example, 74.25 MBps. 21A and 21B respectively show a G data series,
A line blanking part in each line part in the B data series and the R data series and a part of a video data part before and after the line blanking part are shown.

In each of the G data sequence, B data sequence, and R data sequence, immediately before each video data portion, four words (3FF (G), 0FF) each having a 10-bit configuration are used.
00 (G), 000 (G) and XYZ (G) ((G) represents a word in the G data series), 3
FF (B), 000 (B), 000 (B) and XYZ
(B) ((B) indicates a word in the B data series) or 3FF (R), 000
(R), 000 (R) and XYZ (R) ((R) represents a word in the R data series.)), Timing reference code data: SAV is provided, and each video data section is provided. Immediately after, four words (3FF (G), 000 (G), 00) each having a 10-bit configuration
0 (G) and XYZ (G), 3FF (B), 000
(B) 000 (B) and XYZ (B), or 3
FF (R), 000 (R), 000 (R) and XYZ
(R)) timing reference code data: EAV
Is arranged. Of course, G data series, B data series and R data series
Each of the timing reference code data: EAV and SAV in each of the data sequences is allocated to each line blanking section in each of the G, B and R data sequences.

[0008] In the current HDTV system, Y the frame rate as described above is as for interlaced scanning at Moto which is a 30Hz, P _B / P _R format or G,
HD digital video signals of B and R formats are used, but as a next-generation HDTV system,
Frame rate 60Hz or 60 / 1.001H
z (in the present application, each of these is referred to as 60 Hz), each frame image is divided into the first and second frames.
Are sequentially with scanning is formed without being divided into fields, Y, P _B / P _R format or G, B, a system using a HD digital video signal of R format has been proposed. Are sequentially with scanning, Y, P _B / P _R format or G, B, HD digital video signal of the R form, referred to as HD digital video signal of progressive (Progressive) scheme.

A program with a frame rate of 60 Hz
Digit forming a low-resolution HD digital video signal
Data is from SMPTE (Society of Motion Pi
cture and Television Engineers: Film and Television Engineers
Standards established by the Association of Engineers: SMPTE 247M
Standardization of the format is being attempted. Such SMPTE
 In the format standardized by 247M,
Frame rate: 60Hz plus effective data per line
Number of samples: 1920 samples, per frame
Effective lines: 1080 lines, sampling frequency: 1
48.5MHz or 148.5 / 1.001MHz
(In the present application, any of these is 148.5 MHz
That. ), Number of quantization bits: 8 bits or 10 bits
And so on. And the parallel data
Interface is Y, P_B/ P _R8-bit format
X 2 = 16 bits or 10 bits x 2 = 20 bits
8 bits × 3 = 24 for G, B, and R formats
Bits or 10 bits × 3 = 30 bits.

In digital data forming such a digital video signal having a quantization bit number of 8 bits or 10 bits, a code that is not used to represent video signal information is determined as a prohibition code. I have. For example, when the quantization bit number is 8 bits,
The prohibition codes are represented in hexadecimal notation 00h and FFh (subscript h
Is a hexadecimal number), that is, 0000 0000
When the number of quantization bits is 10 bits, the prohibition code is 000h in hexadecimal notation.
００003h and 3FCh〜3FFh, ie, 00 0000 0
000-00 00000011 and 11 1111 1100-11 1111 11
11

[0011] Incidentally, Y, if the P _B / P _R format, P _B data sequence and P _R data sequence of each of the sampling frequency is 1/2 of the sampling frequency of the Y data sequence. Is put below, if necessary, Y, and P _B / P _R format 4: 2: represented as 2 format. In the case of the G, B, and R formats, the sampling frequencies of the G data sequence, the B data sequence, and the R data sequence are the same. In the following, the G, B, and R formats are referred to as 4: 4: 4 formats as necessary.

Aside from the HD digital video signal, the frame rate is set to 60 Hz, the number of effective lines in each frame is set to 720 lines, and
A progressive digital video signal in which the number of valid data samples in each line is set to 1280 (in the present application, such a digital video signal is
20P signal) has been proposed. Such 72
The digital data forming the 0P signal has been standardized in format according to a standard established by SMPTE: SMPTE 296M. In the format standardized by such SMPTE 296M, the frame rate: 60H
z, number of effective lines per frame: 720 lines, number of effective data samples per line: 1280 samples, as well as the number of lines in each frame: 750 lines, sampling frequency: 74.25 MHz or 7
4.25 / 1.001 MHz (all of them are referred to as 74.25 MHz in the present application), the number of quantization bits: 8 bits or 10 bits, and the like. And the parallel data interface is Y,
For P _B / P _R format, 8 bits × a 2 = 16 bits or 10 bits × 2 = 20 bits, G, B, when the R form, 8 bits × 3 = 24 bits or 10 bits × 3 = 30 Is a bit.

The 720P signal has been proposed in the transition period to the HD digital video signal in the field of the digital video signal. Is 1080 lines and 1920 samples, but is 720 lines and 1280 samples, which is ＨＤ of the case of the HD digital video signal. Although it is inferior to a signal, it has a frame rate of 60 Hz, and is therefore suitable for use as a signal representing a fast-moving image.

Under these circumstances, for the digital data forming the 720P signal, for example, in order to further improve the resolution of an image reproduced based on the digital signal, the number of quantization bits is changed to 8 bits or 10 bits. , For example, 12 bits, 14 bits, 16 bits
It is becoming desirable to use bits or the like.
However, the current 720P such as SMPTE 269M mentioned above
According to the standards for digital data forming signals,
Although the standardization of a quantization bit number of 8 bits or 10 bits has been attempted, the quantization bit number exceeds 8 bits or 10 bits, for example, 12 bits, 14 bits, 16 bits, etc. Are not standardized.

[0015] In addition, digital data forming a 720P signal having a quantization bit number of, for example, 12, 14, or 16 bits has a problem associated with its transmission. That is, in transmitting digital data forming a 720P signal, serial transmission which is converted into serial data and transmitted is desired. Under the present circumstances, the number of quantization bits is set to 8 bits or 10 bits. For digital data forming an HD digital signal of 4: 2: 2 format, an HD SDI (High Defini
Transmission using the Serial Serial Interface) is standardized, but other types of digital data, for example, a 720P signal having a quantization bit number of 10 bits or exceeding 10 bits The serial transmission of digital data that satisfies the following is not standardized.

[0016]

In connection with a video signal to be digitized as described above, a Key signal (Key Signal) used when the video signal is combined with another video signal is used. Proposed. The Key signal is opacity or transparency (opacitivity) of the related video signal.
ty or transparency), which is called “SMPT
Recommended as E RECOMMENDED PRACTICE ”RP 157-1995.

A Key signal related to a 4: 2: 2 digital video signal has a Key signal data sequence, which is digital data forming the same, equivalent to the Y data sequence included in the digital data forming the digital video signal. It has a data format and is handled in the same way as the Y data series. The Key signal relating to the 4: 4: 4 format digital video signal has a Key signal data sequence, which is digital data constituting the Key signal data, equivalent to a G data sequence included in the digital data constituting the digital video signal. It has a format and is handled in the same way as a G data series.

Then, 4: 2: 2 format or 4: 4:
In transmitting digital data forming a 720P signal in four formats, it is often required to transmit digital data forming the 720P signal and a key signal data sequence related thereto. In such a case,
In addition to the digital data forming the 720P signal in 4: 2: 2 format or 4: 4: 4 format, the associated Ke
The y signal data sequence is transmitted as an additional information data sequence attached to the digital data forming the 720P signal to be transmitted, and furthermore, such transmission is performed, for example, with a quantization bit number of 10 bits. It is desired to use existing circuit components used for serial transmission of digital data forming a digital video signal so as to perform the transmission from the viewpoints of ease of implementation, reduction of cost, and the like.

However, as described above, regarding serial transmission of digital data forming a 720P signal,
Under the current situation where standardization is not performed, the number of quantization bits is set to 10, 12, 14, or 16 bits.
The transmission of digital data forming a 720P signal in 4: 2: 2 format or 4: 4: 4 format, such as bits, and a key signal data sequence associated therewith are performed by using a digital signal forming a 720P signal transmitted in the key signal data sequence. It can be appropriately realized by using existing circuit components used for serial transmission of digital data forming a digital video signal having a quantization bit number of 10 bits as an additional information data sequence accompanying data. No specific example of a possible transmission system is found. Further, there is no document or the like describing a technique relating to such a serial transmission system.

In view of the above, the invention described in the claims of the present application provides transmission of digital data forming a 720P signal having a quantization bit number of 10 bits or more and a key signal data sequence related thereto. , Key signal data sequence can be performed in the state of additional information data sequence attached to digital data forming 720 signals to be transmitted, and the transmission is performed, for example, with a 10-bit quantization video signal. Provided is a data transmission method that can be appropriately realized by using existing circuit components used for serial transmission of digital data forming a signal, and a data transmission device that is used to execute the method.

[0021]

The data transmission method according to the invention described in any one of claims 1 to 4 of the present application has a frame rate of 60.
Hz, the number of lines in each frame is 750, the number of effective lines in each frame is 720,
A 720P signal in which the number of valid data samples in each line is set to 1280 samples, each having a quantization bit number of 10 bits and a word transmission rate of 74.2.
And Y data sequence and P _B / P _R data sequence to be 5 Mbps, has a Y data sequence and the equivalent data format, the additional information data sequence to 74.25MBps word transmission rate the number of quantization bits as 10 bits , And Y data series and P
_B / P based on _R data series, the word transmission rate 7
Data processing is performed to form first 20-bit word string data at 4.25 MBps and second 20-bit word string data at a word transmission rate of 74.25 MBps based on the additional information data sequence. And first and second serial data based on the first and second 20-bit word string data, respectively, and transmit them for transmission.

In the data transmission method according to any one of claims 5 to 8 of the present application, the frame rate is 60 Hz, the number of lines in each frame is 750, and the number of lines in each frame is 750. The number of valid lines in is set to 720 lines, and the number of valid data samples in each line is set to 1280 samples.
20P signals, each having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps.
It has a data format equivalent to the data sequence, B data sequence, R data sequence, and G data sequence, and has a quantization bit number of 10 bits and a word transmission rate of 74.25.
Each of a G data sequence, a B data sequence, an R data sequence, and an additional information data sequence is formed on 40-bit parallel data including an additional information data sequence of MBps.
A bit word is divided into a first word group including a 10-bit word forming a G data sequence, a part of a 10-bit word forming each of a B data sequence and an R data sequence, and a 10-bit word forming an additional information data sequence. A bit transmission rate of 74.25 Mbps based on the first word group is divided into a second word group including bit words and another part of the 10-bit word forming each of the B data sequence and the R data sequence. And a second 20-bit word string data having a word transmission rate of 74.25 MBps based on the second word group.
Performing data processing to form bit word string data,
First and second serial data based on the first and second 20-bit word string data, respectively, are obtained and transmitted for transmission.

In the data transmission method according to any one of the ninth to twelfth aspects of the present invention, the frame rate is 60 Hz, the number of lines in each frame is 750, and the number of lines in each frame is 750. A Y data sequence in which the number of effective lines is set to 720 lines, the number of effective data samples in each line is set to 1280 samples, and a 720P signal is set. and the P _B / P _R data sequence has a Y data sequence and the equivalent data format, a word transmission rate the number of quantization bits as 12 bits 74.25MB
the 36-bit parallel data including the additional information data sequence to ps, Y data sequence, P _B / P and _R data series and the additional information data sequence of each 12-bit word to form a respectively upper 10 bits and lower 2 bits And Y
Based on a plurality of upper 10 bits which is divided from the data sequence and P _B / P _R data sequence, a word transmission rate 7
First 20-bit word string data of 4.25 MBps, and a plurality of upper 1s divided from the additional information data sequence
0 bit, based on a plurality of low-order 2 bits divided from the Y data sequence and P _B / P _R data sequence a plurality of lower 2 bits and the additional information data sequence divided from the the 74.25MBps word transmission rate And data processing for forming two 20-bit word string data, obtaining first and second serial data based on the first and second 20-bit word string data, respectively, and transmitting them for transmission. It is said.

Claim 13 in the claims of the present application
18. A data transmission method according to claim 17, wherein the frame rate is 60 Hz, the number of lines in each frame is 750, the number of effective lines in each frame is 720, and the effective data in each line is The Y data sequence and the P data which form a 720P signal in which the number of samples is set to 1280 samples, each of which has a quantization bit number of 12, 14, or 16 bits and a word transmission rate of 74.25 MBps.
It has the same data format as the _B / P _R data series and the Y data series, and has a quantization bit number of 12 bits, 14 bits.
Word transmission rate of 7 bits or 16 bits
3. Includes an additional information data sequence of 4.25 MBps
6 bits, 42 bits or 48-bit parallel data, Y data sequence, P _B / P _R data series and the 12 bits forming each of the additional information data series, the 14-bit or 16-bit words, the upper 10 bits and lower 2 bits, 4 divided into a-bit or 6-bit, based on a plurality of upper 10 bits which is divided from the Y data sequence and P _B / P _R data sequence, a word transmission rate 74.
A first 20-bit word sequence data to 25 Mbps, a plurality of lower 2 bits that are divided from the Y data sequence and P _B / P _R data sequence, based on the 4-bit or 6-bit, and 74.25MBps word transmission rate And a third 20-bit word transmission rate based on a plurality of upper 10 bits and a plurality of lower 2, 4 or 6 bits divided from the additional information data sequence. , And obtains first, second, and third serial data based on the first, second, and third 20-bit word string data, respectively, and transmits them. It is to be sent out.

Claim 18 in the claims of the present application
23. The data transmission method according to claim 22, wherein the frame rate is 60 Hz, the number of lines in each frame is 750, the number of effective lines in each frame is 720, and the effective data in each line is A G data sequence, a B data sequence and an R data sequence each forming a 720P signal with the number of samples set to 1280 samples, each having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps,
It has a data format equivalent to that of the data series, and has a word transmission rate of 74.times.
A 48-bit parallel data including an additional information data sequence of 25 MBps, a G data sequence, a B data sequence,
Each 12-bit word forming each of the R data sequence and the additional information data sequence is divided into upper 10 bits and lower 2 bits, and a plurality of upper 1 bits divided from the G data sequence.
A first 20-bit word string data having a word transmission rate of 74.25 MBps based on 0 bits and a part of a plurality of upper 10 bits divided from each of the B data sequence and the R data sequence; and a B data sequence And the other part of the plurality of upper 10 bits divided from each of the R data sequence and the lower 2 bits divided from the G data sequence, the B data sequence, and the R data sequence. Based on second 20-bit word string data of 74.25 MBps and a plurality of upper 10 bits and a plurality of lower 2 bits divided from the additional information data sequence,
Third 2 for setting the word transmission rate to 74.25 MBps
Data processing for forming 0-bit word string data is performed to obtain first, second, and third serial data based on the first, second, and third 20-bit word string data, respectively, and to transmit them. And send it out.

In the data transmission apparatus according to the twenty-third aspect of the present invention, the frame rate is 60 Hz, the number of lines in each frame is 750, and the number of effective lines in each frame is 720. Line, a 720P signal in which the number of valid data samples in each line is set to 1280 samples,
Y data series and P _B, each having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps
/ P _R data sequence and 30-bit parallel data having a data format equivalent to that of the Y data sequence, including an additional information data sequence having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps, First 20-bit word string data having a word transmission rate of 74.25 MBps based on the data sequence and the P _B / P _R data sequence, and second 20-bit word sequence data having a word transmission rate of 74.25 MBps based on the additional information data sequence. And a first parallel / serial (P / S) conversion unit that obtains first serial data based on the first 20-bit word string data. , A second P / S converter that obtains second serial data based on the second 20-bit word string data, and a first and a second P / S converter. And a data transmission unit for transmitting the first and second serial data obtained from the P / S conversion unit, respectively.

Claim 24 in the claims of the present application
The data transmission device according to the invention described in (1) has a frame rate of 60 Hz and the number of lines in each frame is 7
50 lines, 720 effective lines in each frame
Line, the number of valid data samples in each line is 12
A G data sequence, a B data sequence, and an R data sequence each forming a 720P signal set to 80 samples, each having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps, and a G data sequence equivalent to the G data sequence The G data sequence, the B data sequence, the R data sequence and the additional information are converted into 40-bit parallel data including a data format, an additional information data sequence having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps. The 10-bit words forming each of the data sequences are referred to as the 10-bit words forming the G data sequence,
A first word group including a part of the 10-bit word forming each of the data sequences, and a 10-bit word forming the additional information data sequence and a 10-bit word forming each of the B data sequence and the R data sequence. A word transmission rate based on the first word group is determined to be 74.25 MB based on the first word group.
The word transmission rate is 74.2 based on the first 20-bit word string data of ps and the second word group.
A data processing unit for performing data processing for forming second 20-bit word string data of 5 MBps;
A first P / S converter that obtains first serial data based on bit word string data, and a second P / S converter that obtains second serial data based on second 20-bit word string data
An S conversion unit and a data transmission unit for transmitting the first and second serial data obtained from the first and second P / S conversion units, respectively, for transmission are configured.

Claim 25 in the claims of the present application
The data transmission device according to the invention described in (1) has a frame rate of 60 Hz and the number of lines in each frame is 7
50 lines, 720 effective lines in each frame
Line, the number of valid data samples in each line is 12
A Y data sequence and P _B / P _R , which form a 720P signal set to 80 samples, each having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps,
The 36-bit parallel data including a data sequence and an additional information data sequence having a data format equivalent to that of the Y data sequence and having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps, Each 12-bit word forming each of the P _B / P _R data sequence and the additional information data sequence is divided into upper 10 bits and lower 2 bits, and the Y data sequence and the P _B / P _R
A first word transmission rate of 74.25 MBps based on a plurality of upper 10 bits divided from a data sequence
A 20-bit word sequence data, divided from a plurality of upper 10 bits, Y data sequence and P _B / P _R data sequence a plurality of lower 2 bits and the additional information data sequence divided from divided from the additional information data sequence Multiple lower 2
Bit-based word transmission rate of 74.25 MBp
a data processing unit for performing data processing for forming second 20-bit word string data as s, and a first for obtaining first serial data based on the first 20-bit word string data
, A second P / S converter for obtaining second serial data based on the second 20-bit word string data, and a first and second P / S converter. First
And a data transmission unit for transmitting the second serial data for transmission.

Claim 26 in the claims of the present application
The data transmission device according to the invention described in (1) has a frame rate of 60 Hz and the number of lines in each frame is 7
50 lines, 720 effective lines in each frame
Line, the number of valid data samples in each line is 12
A 720P signal set to 80 samples is formed, and each has a quantization bit number of 12, 14, or 16 bits.
And Y data sequence and P _B / P _R data sequence to 74.25MBps word transmission rate as the bit has a Y data sequence and the equivalent data format, 12-bit quantization bit number, as 14-bit or 16-bit A 36-bit, 42-bit or 48-bit parallel data including an additional information data sequence having a word transmission rate of 74.25 MBps is converted into a Y data sequence, P _B / P
Each 12-bit, 14-bit, or 16-bit word forming each of the _R data sequence and the additional information data sequence is divided into upper 10 bits and lower 2 bits, 4 bits, or 6 bits, and the Y data sequence and P _B / based on a plurality of upper 10 bits divided from P _R data sequence,
The first 2 which makes the word transmission rate 74.25 MBps
0-bit word string data, Y data series and P _B / P
_A word transmission rate of 7 based on a plurality of lower 2 bits, 4 bits or 6 bits divided from the _R data sequence
Second 20-bit word string data of 4.25 MBps, and a plurality of upper 1s divided from the additional information data sequence
0 bits and a plurality of lower 2 bits, 4 bits or 6
Bit-based word transmission rate of 74.25 MBp
a data processing unit for performing data processing for forming third 20-bit word string data as s; and a first processing unit for obtaining first serial data based on the first 20-bit word string data.
P / S converter, second P / S converter for obtaining second serial data based on second 20-bit word string data, and third serial data based on third 20-bit word string data A third P / S converter for obtaining
And a data transmission unit for transmitting the first, second, and third serial data obtained from the third P / S conversion unit, respectively.

Claim 27 in the claims of the present application
The data transmission device according to the invention described in (1) has a frame rate of 60 Hz and the number of lines in each frame is 7
50 lines, 720 effective lines in each frame
Line, the number of valid data samples in each line is 12
A G data sequence, a B data sequence, and an R data sequence each forming a 720P signal set to 80 samples and each having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps, and a G data sequence equivalent to the G data sequence A G data sequence, a B data sequence, an R data sequence, and additional information are added to 48-bit parallel data including a data format, an additional information data sequence having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps. Each 12-bit word forming each of the data sequences is
0 bits and lower 2 bits, and a plurality of upper 10 bits, a B data sequence, and an R
A word transmission rate of 74.25 MB based on a part of a plurality of upper 10 bits divided from each of the data sequences
ps, the first 20-bit word string data, ps, another part of the upper 10 bits divided from each of the B data series and the R data series, and the G data series, the B data series, and the R data series. Second 20-bit word string data having a word transmission rate of 74.25 MBps based on the plurality of divided lower 2 bits, a plurality of upper 10 bits and a plurality of lower 2 bits divided from the additional information data sequence , The word transmission rate is 74.25.
A data processing unit for performing data processing for forming third 20-bit word string data of MBps; a first P / S conversion unit for obtaining first serial data based on the first 20-bit word string data; , Second P / S for obtaining second serial data based on second 20-bit word string data
A converter, a third P / S converter that obtains third serial data based on the third 20-bit word string data, and a third P / S converter that is respectively obtained from the first, second, and third P / S converters. And a data transmission unit that transmits the first, second, and third serial data for transmission.

The data transmission method according to any one of claims 1 to 22 in the claims of the present invention as described above, or any one of claims 23 to 27 In the data transmission device according to the described invention, the number of quantization bits is 10 bits,
12 bits, 14 bits or 16 bits 72
Y data sequence and P _B / P _R data sequence forming a 0P signal, or, G data series, B data series, and R data series and, Y data sequence or G data sequence and additional information data sequence having the same data format And
Additional information data sequence Y data sequence and P _B / P _R data sequence, or, G data series, B data series, and R
Based on the data sequence, each is converted into a plurality of 20-bit word string data each having a word transmission rate of 74.25 MBps.
Each of the bit word string data is transmitted after being converted into serial data.

Each of them sets the word transmission rate to 74.
The processing of a plurality of 20-bit word string data of 25 MBps and the processing of converting each of them into serial data and transmitting the serial data are performed by the conventional digital data forming an HD digital video signal having a quantization bit number of 10 bits. This is a process that can be performed using circuit components used for serial transmission. Further, Y data sequence and P _B / P _R data sequence or,, G data series, the additional information data series are those associated with B data series, and R data series, Y data sequence and P _B / P _R data The sequence can be a Key signal data sequence related to digital data forming a 720P signal including a G data sequence, a B data sequence, and an R data sequence.

Therefore, the data transmission method according to any one of claims 1 to 22 or the claims 23 to 27 in the claims of the present application. According to the data transmission apparatus according to the invention, the number of quantization bits is set to 10 bits or more, for example, 10 bits, 12 bits, 14 bits or 1 bit.
Transmission of digital data forming a 720P signal having 6 bits and a key signal data sequence associated with the digital data is represented by Ke.
A digital video signal in which the y-signal data sequence is converted into an additional information data sequence attached to the digital data forming the 720P signal to be transmitted, and the transmission is performed, for example, with a quantization bit number of 10 bits The present invention can be appropriately realized using existing circuit components used for serial transmission of digital data.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing an example of a data transmission method according to the present invention. 21 shows a data transmission / reception device including a first example of the data transmission device according to the invention described in any one of claims 23 to 25.

The data transmission / reception device shown in FIG. 1 constitutes a first example of a data transmission device according to any one of claims 23 to 25 of the present application. On the transmitting side, the digital data forming the digital video signal and the accompanying Key
Data DVX including digital data forming a signal is supplied to the data processing unit 11.

The data DVX corresponds to DVA in FIG.
10 + DKA10, DVB10 + DKB10 or D
The data is represented as VA12 + DKA12.

The data DVX is DVA1 in FIG.
When the data is indicated as 0 + DKA10,
The data processing unit 11 has a frame rate of 60 Hz,
750 lines per frame, each frame
The number of effective lines is 720
Wave number 74.25MHz, effective data in each line
4: 2: with the number of samples set to 1280 samples
Two types of 720P signals are formed, each of which represents the number of quantization bits.
Word transmission rate of 74.25 MBp as 10 bits
Y data series to be s and P_B/ P_RData series (DV
A10) and a data format equivalent to the Y data series
Word transmission with a quantization bit number of 10 bits
Key signal data system with a rate of 74.25 MBps
Column (DKA10) is input. Key signal data system
Columns are Y data series and P_B/ P _RAttached to the data series
It forms an additional information data sequence. And this
These Y data series, P_B/ P_RData series and Key
Signal data series (expressed as 4: 2: 2: 4 format data)
2) is the frame synchronization and line-up as shown in FIG.
Obtained by parallel multiplexing under synchronized
30-bit word transmission rate of 74.25 MBps
Is supplied to the data processing unit 11 as parallel data.
You.

In the data processing section 11, the data DVA10 + DKA1 supplied as shown in FIG.
The following processing is performed on 0.

The Y data sequence as shown in FIG.
10-bit words YD0, YD1, YD2, YD to be formed
3, ..., and P_B/ P_RConstructing a data series 1
0-bit words PbD0, PrD0, PbD1, PrD
, PbD2, PrD2,...
Overlapping, as shown in FIG. _B
/ P_RThe word transmission rate based on the data sequence is 74.
20-bit word string data DVA1 with 25 MBps
0A is formed as link A. Also, with it,
Construct a Key signal data sequence as shown in FIG.
The 10-bit words AD0, AD1, AD2, AD3,.
... and the auxiliary 10-bit words αD0, αD1, α
, And D2, αD3,.
Key signal data sequence and auxiliary 1 as shown in FIG.
A word transmission rate of 74.2 based on 0 bit words
20-bit word string data DVA10 with 5 MBps
B is formed as a link B.

That is, the word transmission rate is 74.25 MB.
Data DVA10 + DKA10 forming 30-bit word string data having a word transmission rate of 74.ps.
20-bit word string data DVA1 with 25 MBps
This is converted into two-system word string data of 0A and 20-bit word string data DVA10B having a word transmission rate of 74.25 MBps.

Further, the data DVX corresponds to D in FIG.
When the data is represented as VB10 + DKB10, the data processing unit 11 sets the frame rate to 60 Hz.
The number of lines in each frame is set to 750 lines, the number of effective lines in each frame is set to 720, the sampling frequency is set to 74.25 MHz, and the number of effective data samples in each line is set to 1280.
A 4: 4: 4 format 720P signal is formed, each having a quantization bit number of 10 bits and a word transmission rate of 74.2.
Ke having a data format of 5 MBps, a G data sequence, an R data sequence (DVB10), and a data format equivalent to the G data sequence, having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps
The y signal data sequence (DKB10) is input. Ke
The y signal data sequence forms an additional information data sequence attached to the G data sequence, the B data sequence, and the R data sequence. Then, these G data sequence, B data sequence, R data sequence and Key signal data sequence (4: 4:
4: 4 format data), as shown in FIG. 4, the word transmission rate obtained by parallel multiplexing under frame synchronization and line synchronization is 74.
As 40-bit parallel data of 25 MBps,
The data is supplied to the data processing unit 11.

In the data processing section 11, the data DVB10 + DKB1 supplied as shown in FIG.
The following processing is performed on 0.

As shown in FIG. 4, 10-bit words GD0, GD1, GD2, GD constituting a G data sequence
,..., 10-bit words BD0, BD1, BD2, BD3,.
10-bit words RD0, RD forming a data sequence
, RD2, RD3,..., And 10-bit words AD0, AD1,
, Are divided as indicated by the thick solid line in FIG. 5 to form 10-bit words GD0, GD1, GD2, G forming a G data sequence.
..., 10-bit words BD0, BD2, ... forming a B data sequence and 10-bit words RD0, RD2, ... forming a R data sequence
, And 10-bit words AD0, AD1, A forming a Key signal data sequence.
D2, AD3,..., 1 forming a B data sequence
, And 10-bit words RD1, RD3,... Forming an R data sequence
.. And 10-bit word group 2 including. Then, the word transmission rate is set to 74.25 MBps based on the 10-bit word group 1 shown in FIG.
The 20-bit word string data DVB10A is formed as a link A as shown in FIG.
Based on the 10-bit word group 2 shown in FIG.
20-bit word string data DVB10B having a word transmission rate of 74.25 MBps is formed as link B as shown in FIG.

That is, the word transmission rate is 74.25 MB.
The data DVB10 + DKB10 forming 40-bit word string data having a word transmission rate of 74.
20-bit word string data DVB1 with 25 MBps
0A and 20-bit word string data DVB10B having a word transmission rate of 74.25 MBps are converted into two systems of word string data.

Further, when the data DVX is data indicated as DVA12 + DKA12 in FIG. 22, the data processing unit 11 sends a frame rate of 60 Hz.
The number of lines in each frame is set to 750 lines, the number of effective lines in each frame is set to 720, the sampling frequency is set to 74.25 MHz, and the number of effective data samples in each line is set to 1280.
A 4: 2: 2 format 720P signal is formed, each having a quantization bit number of 12 bits and a word transmission rate of 74.2.
And Y data sequence and P _B / P _R data sequence to 5MBps (DVA12), Y data sequence and has the same data format, Key Canada signal to 74.25MBps word transmission rate the number of quantization bits as 12 bits The data sequence (DKA12) is input. Key signal data series is assumed to constitute the additional information data sequence accompanying the Y data sequence and P _B / P _R data sequence. Then, these Y data sequence, P _B / P _R data sequence and Key signal data series, the as shown in FIG. 7, is obtained is parallel multiplexed with Moto frame synchronization and line synchronization has been taken, word transmission rate 74.25 MB
The data is supplied to the data processing unit 11 as 36-bit parallel data of ps.

In the data processing section 11, the data DVA12 + DKA1 supplied as shown in FIG.
2 is subjected to the following processing.

First, as shown in FIG. 7, 12-bit words YD0, YD1, YD constituting a Y data sequence
2, YD3, ·····, 12-bit words constituting the P _B / P _R data sequence PbD0, PrD0, PbD1,
PrD1, PbD2, PrD2,..., And K
12-bit word AD constituting the ey signal data sequence
Each of 0, AD1, AD2, AD3,... Is represented by upper 10 bits Y0; 2-11, Y1; 2-11, Y2;
2-11, Y3; 2-11,..., Pb0;
11, Pr0; 2-11, Pb1; 2-11, Pr1;
2-11, Pb2; 2-11, Pr2; 2-11,.
... and A0; 2-11, A1; 2-11, A
2; 2-11, A3; 2-11,...
Bits Y0; 0-1, Y1; 0-1, Y2; 0-1, Y
, Pb0; 0-1, Pr0; 0
-1, Pb1; 0-1, Pr1; 0-1, Pb2; 0-
1, Pr2; 0-1,..., And A0; 0-1
A1: 0-1, A2; 0-1, A3; 0-1, ...
・ ・ Divided into

Then, a sequence of the divided upper 10 bits:
Y0; 2-11, Y1; 2-11, Y2; 2-11, Y
3; 2-11,..., And a sequence of the upper 10 bits divided: Pb0; 2-11, Pr0; 2-11, Pb
1; 2-11, Pr1; 2-11, Pb2; 2-11,
, Pr2; 2-11,.
The 20-bit word string data DVA12A having a word transmission rate of 74.25 MBps is formed as a link A as shown in FIG.

At the same time, the lower two bits Y0;
1, Pb0: 0-1, Pr0: 0-1 and A0: 0-1
10 bits [YA0BR0; 0-1] + obtained by multiplexing the bits and adding two auxiliary bits a0
a0, lower 2 bits Y1; 10 bits obtained by multiplexing 0-1 and A1: 0-1 and adding 6-bit auxiliary bit b0 [Y1; 0-1, A1; 0-1]
+ B0, lower 2 bits Y2; 0-1, Pb1: 0-1,
10 bits [YA2BR1; 0-1] + a1, lower 2 bits Y obtained by bit-multiplexing Pr1: 0-1 and A2: 0-1 and adding 2-bit auxiliary bit a1
3; 0-1 and A3: 10 bits [Y3; 0-1, A3; 0-1] + b1, obtained by multiplexing the bits 0-1 and 6-bit auxiliary bits b1, and the lower two bits Y4; 0 -1, Pb2: 0-1, Pr2: 0-1 and A
10 bits [YA4BR2; obtained by multiplexing bits 4: 0-1 and adding 2 bits of auxiliary bits a2;
0-1] + a2, lower 2 bits Y5; 0-1 and A5:
10 bits [Y5; 0-1, A] obtained by bit-multiplexing 0-1 and adding 6-bit auxiliary bit b2
5; 0-1] + b2,... And
The 10-bit sequence obtained in this way and the divided upper 10-bit sequence: A0; 2-11, A1; 2-1
1, A2; 2-11, A3; 2-11,...
The 20-bit word string data DVA12B with ps is
The link B is formed as shown in FIG.

That is, the word transmission rate is 74.25 MB.
The data transmission rate of the data DVA12 + DKA12 forming 36-bit word string data having a word transmission rate of 74.
20-bit word string data DVA1 with 25 MBps
2A and 20-bit word string data DVA12B having a word transmission rate of 74.25 MBps are converted into two systems of word string data.

The data processing unit 11 sets a set of 20-bit word string data DVA10A and DVA10B, a set of DVB10A and DVB10B, and a set of DVA10B with a word transmission rate of 74.25 MBps obtained as described above.
One of the set of 12A and DVA12B is derived as a set of 20-bit word string data DPA (20) and DPB (20).

The 20-bit word string data DPA (20) having a word transmission rate of 74.25 MBps sent from the data processing unit 11 is supplied to the data insertion unit 12. The data insertion unit 12 inserts auxiliary data DAA including channel identification data as needed into the 20-bit word string data DPA (20), and inserts the 20-bit word string data DPA 'into which the auxiliary data DAA has been inserted.
Form (20). 2 obtained from the data insertion unit 12
The 0-bit word string data DPA ′ (20) is supplied to the P / S converter 13.

The P / S conversion section 13 performs P / S conversion on the 20-bit word string data DPA '(20) to increase the bit transmission rate based on the 20-bit word string data DPA' (20) by 74. .25 MBps × 20 = 1.
Forming serial data DSA of 485 Gbps,
The serial data DSA is supplied to an electro-optical converter (E / O converter) 14.

The E / O converter 14 performs an electro-optical conversion process on the serial data DSA,
An optical signal OSA whose center wavelength is, for example, approximately 1.3 μm based on A is transmitted at a bit transmission rate of 1.485 Gbp.
s and transmit it as a transmission signal.

On the other hand, the 20-bit word string data DPB (20) having a word transmission rate of 74.25 MBps sent from the data processing unit 11 is supplied to the data insertion unit 15. The data insertion unit 15 inserts auxiliary data DAB including channel identification data as necessary into the 20-bit word string data DPB (20), and inserts the 20-bit word string data D into which the auxiliary data DAB has been inserted.
PB '(20) is formed. The 20-bit word string data DPB ′ (20) obtained from the data insertion unit 15 is
/ S converter 16.

The P / S conversion section 16 performs P / S conversion on the 20-bit word string data DPB '(20) to increase the bit transmission rate based on the 20-bit word string data DPB' (20) by 74. .25 MBps × 20 = 1.
Forming serial data DSB of 485 Gbps,
The serial data DSB is supplied to the E / O converter 17.

The E / O converter 17 performs an electro-optical conversion process on the serial data DSB,
An optical signal OSB having a center wavelength of, for example, approximately 1.3 μm based on B and a bit transmission rate of 1.485 Gbp
s and transmit it as a transmission signal.

Under these circumstances, the E / O converters 14 and 17
Forms a data transmission unit that transmits serial data DSA and DSB obtained from the P / S conversion units 13 and 16 respectively for transmission.

The optical signal OSA, which is a transmission signal transmitted from the E / O converter 14, is guided to the optical fiber transmission line 19 through the optical connector 18 and transmitted to the receiving side through the optical fiber transmission line 19. The E / O conversion unit 17
The optical signal OSB, which is a transmission signal transmitted from the optical fiber, is guided to the optical fiber transmission line 21 through the optical connector 20, and is transmitted to the receiving side through the optical fiber transmission line 21.
Each of the optical fiber transmission lines 19 and 21 is formed using, for example, a quartz single mode fiber (silica SMF).

On the receiving side, the optical fiber transmission line 1
9 is transmitted to the optical connector 22.
Through the photoelectric conversion unit (O / E conversion unit) 23. The optical signal OSB transmitted through the optical fiber transmission path 21 is guided to the O / E converter 25 through the optical connector 24.

The O / E converter 23 has a center wavelength of approximately 1.3 μm and a bit transmission rate of 1.485 Gb.
The optical signal OSA of ps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSA is set to 1.485 Gb.
The serial data DSA having ps is reproduced. And
The reproduced serial data DSA is supplied to a serial / parallel (S / P) converter 26.

The S / P converter 26 performs S / P conversion on the serial data DSA to convert the serial data DSA into serial data DSA.
A 20-bit word string data DPA ′ (20) having a word transmission rate of 74.25 MBps based on A is reproduced and supplied to the data separation unit 28. In the data separation unit 28, the 20-bit word string data DPA '
(20), the auxiliary data DAA is separated, and the 20-bit word string data DPA (20) and the auxiliary data DAA
Are sent individually, and the 20-bit word string data DPA
(20) is supplied to the data time difference absorbing unit 29.

In the O / E converter 25, the center wavelength is set to approximately 1.3 μm and the bit transmission rate is set to 1.48.
The optical signal OSB of 5 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSB is set to 1.4.
The serial data DSB of 85 Gbps is reproduced.
Then, the reproduced serial data DSB is supplied to the S / P converter 30.

The S / P converter 30 performs S / P conversion on the serial data DSB to convert the serial data DSB into serial data DSB.
Based on B, 20-bit word string data DPB ′ (20) having a word transmission rate of 74.25 MBps is reproduced and supplied to the data separation unit 31. In the data separation unit 31, the 20-bit word string data DPB '
(20), the auxiliary data DAB is separated, and the 20-bit word string data DPB (20) and the auxiliary data DAB are separated.
Are sent individually, and the 20-bit word string data DPB
(20) is supplied to the data time difference absorbing unit 29.

In the data time difference absorbing section 29, the 20-bit word string data DPA from the data separating section 28
(20) and the mutual time difference generated between the 20-bit word string data DPB (20) from the data separation unit 31 are absorbed, and the word transmission rate based on the 20-bit word string data DPA (20) is reduced to 74.25 Mbps. 20-bit word string data DPAQ (20) and 20-bit word string data D whose word transmission rate based on the 20-bit word string data DPB (20) is 74.25 MBps
The PBQ (20) is transmitted as being intended to be maintained in a state where there is substantially no mutual time difference.

The data 20 obtained from the data time difference absorbing unit 29
The bit word string data DPAQ (20) and the 20-bit word string data DPBQ (20) are supplied to the data reproduction processing unit 32. In the data reproduction processing unit 32,
The 20-bit word string data DPAQ (20) and the 20-bit word string data DPBQ (20) are subjected to a data reproduction process reverse to the data conversion process performed on the data DVX by the data processing unit 11 on the transmission side. , 20
Data DVX based on bit word string data DPAQ (20) and 20 bit word string data DPBQ (20)
To play. Such data DVX is shown in FIG.
DVA10 + DKA10, DVB10 + DKB10, or DVA12 + DKA12.

In the above description, the number of quantization bits is set to 1
In the data constituting the digital video signal to two or more bits, Y and upper 10 bits of the column divided from each of the 12-bit words constituting the data series, the 12-bit words constituting the P _B / P _R data sequence each The 20-bit word string data DVA12A formed by parallel multiplexing with the upper 10-bit string divided from the data is, for example, a current magnetic recording / reproducing device for 720P signals (720
Recording and reproduction by a P VTR). Therefore, the content of the 20-bit word string data DVA12A can be confirmed and edited using the current 720P VTR. A reproduced image based on the bit word string data DVA12A can be obtained, and thus, when handling data forming a digital video signal having a quantization bit number of 12 bits or more, a confirmation operation or the like using an existing device is performed. It is very convenient.

FIG. 9 shows an example of a data transmission method according to any one of the first to twelfth aspects of the present invention. A part of a data transmission / reception device including a second example of the data transmission device according to the invention described in any one of Items 23 to 25 is shown.

The data transmission / reception device whose part is shown in FIG.
It has many parts configured similarly to the data transmission / reception apparatus shown in FIG. 1, and FIG. 9 shows only parts different from the data transmission / reception apparatus shown in FIG. 1 and parts related thereto.

In the data transmission / reception device whose part is shown in FIG. 9, the E / O conversion unit 17 and the O / E conversion unit 25 provided in the data transmission / reception device shown in FIG. An / O converter 35 and an O / E converter 41 are provided. Further, instead of the optical connectors 18 and 20, the optical fiber transmission lines 19 and 21, and the optical connectors 22 and 24 provided in the data transmitting and receiving apparatus shown in FIG. 1, an optical connector 37, an optical fiber transmission line 38 and an optical connector are used. 39 are provided. Optical fiber transmission line 38
Is formed using, for example, a quartz-based SMF.

In the data transmission / reception device whose part is shown in FIG. 9, serial data DSA whose bit transmission rate is 1.485 Gbps from P / S converter 13 is supplied to E / O converter 14. , P / S converter 16 supplies serial data DSB having a bit transmission rate of 1.485 Gbps to E / O converter 35. In the E / O converter 14, the serial data DS
An optical signal OSA whose center wavelength is, for example, approximately 1.3 μm based on A is transmitted at a bit transmission rate of 1.485 Gbp.
s, and guides it to the multiplexing unit 36. Further, the E / O conversion unit 35 performs an electro-optical conversion process on the serial data DSB whose bit transmission rate from the P / S conversion unit 16 is 1.485 Gbps, and sets the center wavelength based on the serial data DSB to, for example, About 1.
The optical signal OSB of 55 μm is formed with a bit transmission rate of 1.485 Gbps, which is guided to the multiplexing unit 36.

The multiplexing unit 36 is formed by, for example, a fiber-type WDM coupler (fiber-type WDM coupler). In the multiplexing section 36, the center wavelength is set to approximately 1.
Optical signal OSA of 3 μm and center wavelength of about 1.55 μm
Is multiplexed with the optical signal OSB to form a multiplexed optical signal OSZ, which is transmitted as a transmission signal. Under these circumstances, the E / O conversion units 14 and 35 and the multiplexing unit 36
Forms a data transmission unit that transmits serial data DSA and DSB obtained from the P / S conversion units 13 and 16 respectively for transmission.

The multiplexed optical signal OSZ, which is a transmission signal transmitted from the multiplexing unit 36, is guided to an optical fiber transmission line 38 through an optical connector 37, and is transmitted to the receiving side through the optical fiber transmission line 38.

On the receiving side, the optical fiber transmission line 3
The multiplexed optical signal OSZ transmitted through 8 is guided to the demultiplexing unit 40 through the optical connector 39. The demultiplexing unit 40
For example, a fiber-type WDM coupler is used as a demultiplexing unit. Then, in the demultiplexing unit 40, the multiplexed optical signal OSZ is demultiplexed into a component having a center wavelength of approximately 1.3 μm and a component having a center wavelength of approximately 1.55 μm, and the bit transmission rate is set to 1 .485 Gbps, an optical signal OSA having a center wavelength of about 1.3 μm, a bit transmission rate of 1.485 Gbps, and a center wavelength of about 1.48 Gbps.
The optical signal OSB of 55 μm is reproduced.

The optical signal OSA reproduced by the demultiplexer 40
And OSB are guided to O / E converters 23 and 41, respectively. In the O / E converter 23, the center wavelength is set to approximately 1.3 μm, and the bit transmission rate is set to 1.485 Gbp.
s is subjected to photoelectric conversion processing, and a bit transmission rate based on the optical signal OSA is set to 1.485 Gbp.
s is reproduced. Then, the reproduced serial data DSA is supplied to the S / P converter 26. In the O / E converter 41, the center wavelength is set to approximately 1.55 μm, and the bit transmission rate is set to 1.4.
The optical signal OSB of 85 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSB is set to 1.4.
The serial data DSB of 85 Gbps is reproduced.
Then, the reproduced serial data DSB is supplied to the S / P converter 30. Other operations are the same as those of the data transmitting / receiving apparatus shown in FIG.

FIG. 10 shows an example of a data transmission method according to any one of the first to twelfth aspects of the present invention. A part of a data transmission / reception device including a third example of the data transmission device according to the invention described in any one of Items 23 to 25 is shown.

The data transmission / reception device whose part is shown in FIG. 10 also has many parts configured similarly to the data transmission / reception device shown in FIG. 1, and FIG. 10 shows the data transmission / reception device shown in FIG. Only the parts different from those described above and the parts related thereto are shown.

In the data transmission / reception device whose part is shown in FIG. 10, the E / O conversion units 14 and 17 and the O / E conversion unit 2 provided in the data transmission / reception device shown in FIG.
An E / O converter 43 and an O / E converter 48 are provided instead of 3 and 25. Further, the optical connectors 18 and 2 provided in the data transmitting / receiving apparatus shown in FIG.
0, optical fiber transmission paths 19 and 21, and optical connectors 22 and 24, an optical connector 45, an optical fiber transmission path 46, and an optical connector 47 are provided. The optical fiber transmission line 46 is formed using, for example, a quartz SMF.

In the data transmission / reception apparatus whose part is shown in FIG. 10, serial data DSA whose bit transmission rate from P / S conversion section 13 is 1.485 Gbps.
And the bit transmission rate from the P / S converter 16 to 1.48.
The serial data DSB of 5 Gbps is supplied to the bit multiplexing unit 42. In the bit multiplexing unit 42,
An operation of alternately extracting and sequentially arranging one bit from each of the serial data DSA and DSB is performed, and the serial data DSA and DSB are subjected to bit multiplexing / combining processing to set the bit transmission rate to 1.485 Gbps × 2 = 2.
The composite serial data DZV of 97 Gbps is formed.

The composite serial data DZV obtained from the bit multiplexing section 42 is supplied to an E / O conversion section 43. E
In the / O converter 43, the composite serial data DZV
, An optical signal OZV having a center wavelength of, for example, approximately 1.3 μm is formed with a bit transmission rate of 2.97 Gbps, and transmitted as a transmission signal. Under such circumstances, the bit multiplexing unit 42 and the E / O conversion unit 43 form a data transmission unit that transmits the serial data DSA and DSB obtained from the P / S conversion units 13 and 16, respectively, for transmission. .

The optical signal OZV, which is a transmission signal transmitted from the E / O converter 43, is guided to the optical fiber transmission line 46 through the optical connector 45, and is transmitted to the receiving side through the optical fiber transmission line 46.

On the receiving side, the optical fiber transmission line 4
The optical signal OZV transmitted through the
To the O / E converter 48. The O / E converter 48 performs a photoelectric conversion process on the optical signal OZV having a center wavelength of about 1.3 μm and a bit transmission rate of 2.97 Gbps, and adjusts the bit transmission rate based on the optical signal OZV. 2. Reproduce composite serial data DZV at 2.97 Gbps. Then, the reproduced composite serial data DZV is supplied to the bit separation unit 49.

The bit separation section 49 takes out one bit at a time from the composite serial data DZV, performs an operation of forming every other two bit groups, and performs bit separation processing on the composite serial data DZV. . Then, a channel is specified by using the channel identification data included in the composite serial data DZV, and each of the channels is set to a bit transmission rate of 2. based on the composite serial data DZV.
Two-channel serial data DSA and DSB with 97 Gbps / 2 = 1.485 Gbps are formed. The serial data DSA is supplied to the S / P converter 26,
Further, the serial data DSB is supplied to the S / P converter 30. Other operations are the same as those of the data transmitting / receiving apparatus shown in FIG.

FIG. 11 shows an example of a data transmission method according to any one of claims 13 to 22 in the claims of the present application. A data transmission / reception device including a first example of the data transmission device according to the invention described in item 26 or 27 is shown.

In the data transmission / reception device shown in FIG. 11, the first of the data transmission devices according to the invention described in claim 26 or 27 in the claims of the present application.
In the transmitting side constituting the example of the above, data DVX including digital data forming a digital video signal and digital data forming a Key signal accompanying the digital video signal is supplied to the data processing section 51.

Data DVX corresponds to DVA in FIG.
12 + DKA12, DVA14 + DKA14, DVA1
6 + DKA16 or DVB12 + DKB12.

The data DVX corresponds to DVA1 in FIG.
When the data is indicated as 2 + DKA12,
The data processing unit 51 has a frame rate of 60 Hz,
750 lines per frame, each frame
The number of effective lines is 720
Wave number 74.25MHz, effective data in each line
4: 2: with the number of samples set to 1280 samples
It forms two types of digital video signals, each of which is a quantized bit.
The word transmission rate is 74.25 with the number of bits being 12 bits.
Y data series with MBps and P_B/ P_RData series
(DVA12) and a data format equivalent to the Y data series.
The number of quantization bits is 12 bits.
Key signal data with a transmission rate of 74.25 MBps
Data sequence (DKA12). Key signal
Data series are Y data series and P _B/ P_RData series
An additional information data sequence is formed. Soshi
And these Y data series, P_B/ P_RData series and
As shown in FIG. 7, the key signal data sequence
Parallel multiplexing with frame synchronization and line synchronization
The resulting word transmission rate is 74.25 MBp
data processing as 36-bit parallel data
It is supplied to the unit 51.

In the data processing section 51, the data DVA12 + DKA1 supplied as shown in FIG.
2 is subjected to the following processing.

First, as shown in FIG. 7, 12-bit words YD0, YD1, YD constituting a Y data sequence
2, YD3, ·····, 12-bit words constituting the P _B / P _R data sequence PbD0, PrD0, PbD1,
PrD1, PbD2, PrD2,..., And K
12-bit word AD constituting the ey signal data sequence
Each of 0, AD1, AD2, AD3,... Is represented by upper 10 bits Y0; 2-11, Y1; 2-11, Y2;
2-11, Y3; 2-11,..., Pb0;
11, Pr0; 2-11, Pb1; 2-11, Pr1;
2-11, Pb2; 2-11, Pr2; 2-11,.
... and A0; 2-11, A1; 2-11, A
2; 2-11, A3; 2-11,...
Bits Y0; 0-1, Y1; 0-1, Y2; 0-1, Y
, Pb0; 0-1, Pr0; 0
-1, Pb1; 0-1, Pr1; 0-1, Pb2; 0-
1, Pr2; 0-1,..., And A0; 0-1
A1: 0-1, A2; 0-1, A3; 0-1, ...
・ ・ Divided into

Then, the divided upper 10-bit sequence:
Y0; 2-11, Y1; 2-11, Y2; 2-11, Y
3; 2-11,..., And a sequence of the upper 10 bits divided: Pb0; 2-11, Pr0; 2-11, Pb
1; 2-11, Pr1; 2-11, Pb2; 2-11,
, Pr2; 2-11,.
The 20-bit word string data DVA12A having a word transmission rate of 74.25 MBps is formed as the link A as shown in FIG.

The divided lower two bits Y0;
1, Y1; 0-1, Y2; 0-1, Y3; 0-1,.
..., the 8-bit auxiliary bits c0, c1, c2, c
, And add 10 bits [Y0; 0-
1] + c0, [Y1; 0-1] + c1, [Y2; 0-
1] + c2, [Y3; 0-1] + c3,... And the lower two bits Pb0;
Pr0; 0-1, Pb1; 0-1, Pr1; 0-1, P
b2; 0-1, Pr2; 2-1,..., and 8-bit auxiliary bits d0, d1, d2, d3,. ] + D0,
[Pr0; 0-1] + d1, [Pb1; 0-1] + d
2, [Pr1; 0-1] + d3, [Pb2; 0-1] +
d4, [Pr2; 0-1] + d5,...
And a 10-bit string: [Y0; 0-1] + c0,
[Y1; 0-1] + c1, [Y2; 0-1] + c2
[Y3; 0-1] + c3,... And a 10-bit string: [Pb0; 0-1] + d0, [Pr0; 0-1] +
d1, [Pb1; 0-1] + d2, [Pr1; 0-1]
+ D3, [Pb2; 0-1] + d4, [Pr2; 0-
1] + d5,... Are parallel-multiplexed to form 20-bit word string data DVA12B having a word transmission rate of 74.25 MBps as link B as shown in FIG.

Further, the divided lower two bits A0; 0
-1, A1; 0-1, A2; 0-1, A3; 0-1,.
.., And 8 auxiliary bits e0, e1, e2
... are added to each other and 10 bits [A0; 0
-1] + e0, [A1; 0-1] + e1, [A2; 0-
1] + e2, [A3; 0-1] + e3,..., And a sequence of the divided upper 10 bits: A0;
A1; 2-11, A2; 2-11, A3; 2-11,.
... and a 10-bit string: [A0; 0-1] + e
0, [A1; 0-1] + e1, [A2; 0-1] + e
, And [A3; 0-1] + e3,.
As shown in FIG.

That is, the word transmission rate is set to 74.25 MB.
As shown in FIG. 12, each of data DVA12 + DKA12 forming 36-bit word string data of ps is set to a word transmission rate of 74.25 MBps as shown in FIG.
Bit word string data DVA12A, DVA12B, and DVA12C are converted into three types of word string data.

Further, in the data processing unit 51, FIG.
DVA12 + D supplied as shown in FIG.
For KA12, as another processing instead of the above processing,
The following processing is performed.

First, as shown in FIG. 7, 12-bit words YD0, YD1, YD constituting a Y data sequence
2, YD3, ·····, 12-bit words constituting the P _B / P _R data sequence PbD0, PrD0, PbD1,
PrD1, PbD2, PrD2,..., And K
12-bit word AD constituting the ey signal data sequence
Each of 0, AD1, AD2, AD3,... Is represented by upper 10 bits Y0; 2-11, Y1; 2-11, Y2;
2-11, Y3; 2-11,..., Pb0;
11, Pr0; 2-11, Pb1; 2-11, Pr1;
2-11, Pb2; 2-11, Pr2; 2-11,.
... and A0; 2-11, A1; 2-11, A
2; 2-11, A3; 2-11,...
Bit Y0; 0-1 Y1; 0-1, Y2; 0-1, Y
, Pb0; 0-1, Pr0; 0
-1, Pb1; 0-1, Pr1; 0-1, Pb2; 0-
1, Pr2; 0-1,..., And A0; 0-1
A1: 0-1, A2; 0-1, A3; 0-1, ...
・ ・ Divided into

Then, the divided upper 10-bit sequence:
Y0; 2-11, Y1; 2-11, Y2; 2-11, Y
3; 2-11,..., The upper 10-bit sequence: Pb0; 2-11, Pr0; 2-11, Pb1;
2-11, Pr1; 2-11, Pb2; 2-11, Pr
2; 2-11,... Are parallel-multiplexed, and 20-bit word string data DVA12A having a word transmission rate of 74.25 MBps is used as a link A in FIG.
It is formed as shown in FIG.

The lower two bits Y0; 0-
1 and Pb0; 0-1 and Pr0; 0-1 are multiplexed and 10-bit [Y0BR0; 0-1] + d0 obtained by adding 4-bit auxiliary bit d0, divided lower 2 bits Y1; 0 -1 to 8-bit auxiliary bit e0
[Y1; 0-1] + e0,
Lower two bits Y2; 0-1 and Pb1; 0-1
And Pr1; 0-1 are multiplexed and 10-bit [Y2B] obtained by adding 4-bit auxiliary bit d1
R1; 0-1] + d1, the divided lower two bits Y3;
1 obtained by adding 8-bit auxiliary bit e1 to 0-1
0 bits [Y3; 0-1] + e1, divided lower 2 bits Y4; 0-1 and Pb2; 0-1 and Pr2; 0-1 are multiplexed, and 4-bit auxiliary bit d2 is added. 10 bits [Y4BR2; 0-1] + d
2. 10 bits obtained by adding an 8-bit auxiliary bit e2 to the lower 2 bits Y5; 0-1 divided [Y5; 0
-1] + e2,... The 10-bit sequence thus obtained and the auxiliary 10-bit word α
Are parallel-multiplexed with D0, αD1, αD2, αD3,... To form 20-bit word string data DVA12B having a word transmission rate of 74.25 MBps as a link B as shown in FIG. .

Further, the divided lower two bits A0; 0
-1, A1; 0-1, A2; 0-1, A3; 0-1,.
.., And 8 auxiliary bits e0, e1, e2
... are added to each other and 10 bits [A0; 0
-1] + e0, [A1; 0-1] + e1, [A2; 0-
1] + e2, [A3; 0-1] + e3,..., And a sequence of the divided upper 10 bits: A0;
A1; 2-11, A2; 2-11, A3; 2-11,.
... and a 10-bit string: [A0; 0-1] + e
0, [A1; 0-1] + e1, [A2; 0-1] + e
, And [A3; 0-1] + e3,.
As shown in FIG.

That is, also in this case, as shown in FIG. 13, each of the data DVA12 + DKA12 forming 36-bit word string data having a word transmission rate of 74.25 MBps has a word transmission rate of 74.25Mps.
Bps, 20-bit word string data DVA12A,
The conversion into word string data of three systems of DVA12B and DVA12C is performed.

The data DVX corresponds to DVA1 in FIG.
Data indicated as 4 + DKA14 or DVA1
When the data is indicated as 6 + DKA16,
The data processing unit 51 sets the frame rate to 60 Hz, the number of lines in each frame to 750, the number of effective lines in each frame to 720, the sampling frequency to 74.25 MHz, and the number of effective data samples to each line to 1280. Set,
4: 2: form a 2 format 720P signals, each or Y data sequence and P _B / P _R data sequence (DVA14 to 74.25MBps word transmission rate the number of quantization bits as 14 bits or 16 bits DVA1
6) and Ke having a data format equivalent to that of the Y data series, a quantization bit number of 14 bits or 16 bits, and a word transmission rate of 74.25 MBps.
The y signal data sequence (DKA14 or DKA16) is input. Key signal data series is assumed to constitute the additional information data sequence accompanying the Y data sequence and P _B / P _R data sequence. Then, these Y data sequence, P _B / P _R data sequence and Key signal data sequence is obtained is parallel multiplexed with Moto synchronous frame synchronization and line were taken, the word transmission rate 74.2
42-bit parallel data of 5 MBps or 4
The data is supplied to the data processing unit 51 as 8-bit parallel data.

In this case as well, the data processing unit 51 outputs the data DVA14 + DKA14 or DVA16 + DKA
16 is subjected to the same processing as that for the data DVA12 + DKA12. However, Y data series, P _B /
1 constituting the P _R data sequence and Key signal data sequence
Instead of dividing each 2-bit word into upper 10 bits and lower 2 bits, a Y data series, P _B / P
Constituting _R data sequence and Key signal data sequence 14
An operation of dividing each of the bit words into upper 10 bits and lower 4 bits, or a Y data series, P _B / P
16 comprising _R data sequence and Key signal data sequence
An operation of dividing each of the bit words into upper 10 bits and lower 6 bits is performed.

Then, the word transmission rate is set to 74.25M.
Data DVA14 + DK forming 42-bit word string data or 48-bit word string data at Bps
A14 or DVA16 + DKA16 is converted to 20-bit word string data DVA14A or DVA16A, DV each having a word transmission rate of 74.25 MBps.
A14B or DVA16B, and DVA14C or DVA16C are converted into word string data of three systems.

The data DVX corresponds to DVB1 in FIG.
When the data is represented as 2 + DKB 12, the data processing unit 51 sets the frame rate to 60 Hz, the number of lines in each frame to 750, the number of effective lines in each frame to 720, the sampling frequency to 74.25 MHz, and the The number of valid data samples in is set to 1280 samples, 4: 4:
Four types of 720P signals are formed, each having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBp.
A key signal having a data format equivalent to the G data sequence, the B data sequence, and the R data sequence (DVB12), and the G data sequence, having a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps. The data sequence (DKB12) is input. The Key signal data sequence forms an additional information data sequence attached to the G data sequence, B data sequence, and R data sequence. And these G data series, B data series, R
As shown in FIG. 14, the data sequence and the Key signal data sequence are converted into 48-bit parallel data having a word transmission rate of 74.25 MBps, which is obtained by performing parallel multiplexing with frame synchronization and line synchronization. It is supplied to the processing unit 51.

In the data processing section 51, the data DVB12 + DKB supplied as shown in FIG.
12 is subjected to the following processing.

First, as shown in FIG. 14, 12-bit words GD0, GD1, GD constituting a G data sequence
2, GD3,..., Constituting the B data series 12
Bit words BD0, BD1, BD2, BD3,...
.., 12-bit word RD constituting R data sequence
0, RD1, RD2, RD3,..., And Ke
12-bit words AD0,
Each of AD1, AD2, AD3,.
0 bit G0; 2-11, G1; 2-11, G2; 2-
11, G3; 2-11,..., B0;
B1; 2-11, B2; 2-11, B3; 2-11,.
..., R0; 2-11, R1; 2-11, R2; 2
-11, R3; 2-11,..., And A0;
-11, A1; 2-11, A2; 2-11, A3; 2-
... And lower two bits G0; 0-1, G
1; 0-1, G2; 0-1, G3; 0-1, ...
·, B0; 0-1, B1; 0-1, B2; 0-1, B
3; 0-1,..., R0; 0-1, R1;
1, R2; 0-1, R3; 0-1, ..., and
A0; 0-1, A1; 0-1, A2; 0-1, A3; 0
-1,...

Next, the divided lower two bits G0;
1, G1; 0-1, G2; 0-1, G3; 0-1,.
..., B0; 0-1, B1; 0-1, B2; 0-1,
B3; 0-1,..., R0; 0-1, R1;
1, R2; 0-1, R3; 0-1,..., G0; 0-1 and B0; 0-1 and R0; 10 bits obtained by adding bit f0 [GBR0: 0-1] + f0, G
1; 0-1 and B1; 0-1 and R1; 0-1 and 10 bits obtained by adding 4 auxiliary bits f1 [GBR1: 0-1] + f1, G2; 0-
10 bits [GBR2: 0-1] + f2, G3; 0-1 and B obtained by bit-multiplexing 1 and B2; 0-1 and R2;
3; 0-1 and R3; 0-1 are bit-multiplexed and 4
10 bits obtained by adding the bit auxiliary bit f3
[GBR3: 0-1] + f3,...

Subsequently, as shown in FIG. 15, a sequence of the divided upper 10 bits: G0; 2-11, G1;
11, G2; 2-11, G3; 2-11,.
B0; 2-11, B1; 2-11, B2; 2-11, B
3; 2-11,..., And R0; 2-11, R
1; 2-11, R2; 2-11, R3; 2-11,.
... and a formed 10-bit string: [GBR0: 0
-1] + f0, [GBR1: 0-1] + f1, [GBR
2: 0-1] + f2, [GBR3: 0-1] + f3,
.. Are divided as shown by the bold solid line in FIG. 15, and a column of the divided upper 10 bits: G
0; 2-11, G1; 2-11, G2; 2-11, G
3; 2-11,... And the upper 10 bits divided: B0; 2-11, B2; 2-11, B4;
1,..., And R0; 2-11, R2; 2-1
1, R4; 2-11,..., And the upper 10 bits divided: B1;
2-11, B3; 2-11, B5; 2-11, ...
-And R1; 2-11, R3; 2-11, R5; 2-1
..., a formed 10-bit string: [GB
R0: 0-1] + f0, [GBR1: 0-1] + f1,
[GBR2: 0-1] + f2, [GBR3: 0-1] +
10-bit word group 2 including f3,.
And sort it out.

The word transmission rate based on the 10-bit word group 1 shown in FIG.
20-bit word string data DVB12A with MBps
Are formed as link A as shown in FIG. 16, and 20-bit word string data DVB12B having a word transmission rate of 74.25 MBps based on the 10-bit word group 2 shown in FIG. , Are formed as shown in FIG.

Further, the divided lower two bits A0; 0
-1, A1; 0-1, A2; 0-1, A3; 0-1,.
.., And 8 auxiliary bits e0, e1, e2
... are added to each other and 10 bits [A0; 0
-1] + e0, [A1; 0-1] + e1, [A2; 0-
1] + e2, [A3; 0-1] + e3,..., And a sequence of the divided upper 10 bits: A0;
A1; 2-11, A2; 2-11, A3; 2-11,.
... and a 10-bit string: [A0; 0-1] + e
0, [A1; 0-1] + e1, [A2; 0-1] + e
, [A3; 0-1] + e3,..., And 20-bit word string data DVB12C with a word transmission rate of 74.25 MBps
As shown in FIG.

That is, the word transmission rate is set to 74.25 MB.
The data DVB12 + DKB12 forming the 48-bit word string data at ps are converted to 20-bit word string data D at a word transmission rate of 74.25 MBps.
The data is converted to word string data of three systems of VB12A, DVB12B and DVB12C.

The data processing unit 51 generates 20-bit word string data DVA12A, DVA12B, and D at the word transmission rate of 74.25 MBps obtained as described above.
VA12C pair, word transmission rate 74.25MBp
20-bit word string data DVA14A, DV as s
A set of A14B and DVA14C, the word transmission rate is 7
20-bit word string data DV with 4.25 MBps
A set of A16A, DVA16B and DVA16C, and
20-bit word string data DVB12A, DVB12B and DV having a word transmission rate of 74.25 MBps
One of the sets of B12C is derived as a set of 20-bit word string data DPA (20), DPB (20) and DPC (20).

The 20-bit word string data DPA (20) having a word transmission rate of 74.25 MBps sent from the data processing unit 51 is supplied to the data insertion unit 52. The data insertion unit 52 inserts auxiliary data DAA including channel identification data as needed into the 20-bit word string data DPA (20), and the 20-bit word string data DPA 'into which the auxiliary data DAA has been inserted.
Form (20). 2 obtained from the data insertion unit 52
The 0-bit word string data DPA ′ (20) is supplied to the P / S converter 53.

The P / S conversion section 53 performs P / S conversion on the 20-bit word string data DPA '(20) to increase the bit transmission rate based on the 20-bit word string data DPA' (20) by 74. .25 MBps × 20 = 1.
Forming serial data DSA of 485 Gbps,
The serial data DSA is supplied to the E / O converter 54.

The E / O converter 54 performs an electro-optical conversion process on the serial data DSA,
An optical signal OSA whose center wavelength is, for example, approximately 1.3 μm based on A is transmitted at a bit transmission rate of 1.485 Gbp.
s and transmit it as a transmission signal.

The 20-bit word string data DPB (20) having a word transmission rate of 74.25 MBps sent from the data processing section 51 is supplied to the data insertion section 55. The data insertion unit 55 inserts the auxiliary data DAB including the necessary channel identification data into the 20-bit word string data DPB (20), and inserts the auxiliary data DAB into the 20-bit word string data DB.
PB '(20) is formed. The 20-bit word string data DPB ′ (20) obtained from the data insertion unit 55
/ S conversion section 56.

The P / S conversion section 56 performs P / S conversion on the 20-bit word string data DPB '(20) to increase the bit transmission rate based on the 20-bit word string data DPB' (20) by 74. .25 MBps × 20 = 1.
Forming serial data DSB of 485 Gbps,
The serial data DSB is supplied to the E / O converter 57.

The E / O conversion section 57 performs an electro-optical conversion process on the serial data DSB and outputs the serial data DSB.
An optical signal OSB having a center wavelength of, for example, approximately 1.3 μm based on B and a bit transmission rate of 1.485 Gbp
s and transmit it as a transmission signal.

Further, the 20-bit word string data DPC (20) having a word transmission rate of 74.25 MBps sent from the data processing unit 51 is supplied to the data insertion unit 58.
Supplied to The data insertion unit 58 inserts the auxiliary data DAC including the necessary channel identification data into the 20-bit word string data DPC (20), and the 20-bit word string data DPC ′ into which the auxiliary data DAC has been inserted. Form (20). The 20-bit word string data DPC ′ (20) obtained from the data insertion unit 58 is
It is supplied to the P / S converter 59.

The P / S conversion section 59 performs P / S conversion on the 20-bit word string data DPC ′ (20) to increase the bit transmission rate based on the 20-bit word string data DPC ′ (20) by 74. .25 MBps × 20 = 1.
485 Gbps serial data DSC is formed,
The serial data DSC is supplied to the E / O converter 60.

In the E / O conversion section 60, the serial data DSC is subjected to electro-optical conversion processing, and the serial data
An optical signal OSC having a center wavelength of, for example, approximately 1.3 μm based on C is converted to a bit transmission rate of 1.485 Gbp.
s and transmit it as a transmission signal.

Under these circumstances, the E / O converters 54, 57 and 60 transmit data to transmit the serial data DSA, DSB and DSC obtained from the P / S converters 53, 56 and 59, respectively. Part is formed.

An optical signal OSA, which is a transmission signal transmitted from the E / O converter 54, is guided to an optical fiber transmission line 62 through an optical connector 61, and is transmitted to a receiving side through the optical fiber transmission line 62. Also, the E / O converter 57
An optical signal OSB, which is a transmission signal transmitted from the optical fiber, is guided to an optical fiber transmission line 64 through an optical connector 63 and transmitted to a receiving side through the optical fiber transmission line 64.
Further, an optical signal OSC, which is a transmission signal transmitted from the E / O conversion unit 60, is guided to an optical fiber transmission line 66 through an optical connector 65, and is transmitted to a receiving side through the optical fiber transmission line 66. Optical fiber transmission lines 62, 6
Each of 4 and 66 is formed using, for example, a quartz-based SMF.

On the receiving side, the optical fiber transmission line 6
The optical signal OSA transmitted through the optical connector 67
To the O / E converter 68. The optical signal OSB transmitted through the optical fiber transmission line 64 is
The light is guided to the O / E converter 70 through the optical connector 69. Further, the optical signal OSC transmitted through the optical fiber transmission path 66 is guided to the O / E converter 72 through the optical connector 71.

The O / E converter 68 has a center wavelength of about 1.3 μm and a bit transmission rate of 1.485 Gb.
The optical signal OSA of ps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSA is set to 1.485 Gb.
The serial data DSA having ps is reproduced. And
The reproduced serial data DSA is sent to the S / P converter 73.
Supplied to The S / P conversion unit 73 performs S / P conversion on the serial data DSA, and
74.25 Mbps word transmission rate based on SA
And reproduces the 20-bit word string data DPA ′ (20), and supplies it to the data time difference absorption unit 74.

In the O / E converter 70, the center wavelength is set to approximately 1.3 μm and the bit transmission rate is set to 1.48.
The optical signal OSB of 5 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSB is set to 1.4.
The serial data DSB of 85 Gbps is reproduced.
Then, the reproduced serial data DSB is supplied to the S / P converter 75. In the S / P converter 75,
The S / P conversion is performed on the serial data DSB, and the word transmission rate based on the serial data DSB is set to 74.25.
20-bit word string data DPB ′ (2
0) is reproduced and supplied to the data time difference absorbing section 74.

Further, the O / E converter 72 has a center wavelength of approximately 1.3 μm and a bit transmission rate of 1.4.
The optical signal OSC of 85 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSC is set to 1.4.
The serial data DSC of 85 Gbps is reproduced.
Then, the reproduced serial data DSC is supplied to the S / P converter 76. In the S / P converter 76,
The serial data DSC is subjected to S / P conversion, and the word transmission rate based on the serial data DSC is set to 74.25.
20-bit word string data DPC ′ (2 MBps)
0) is reproduced and supplied to the data time difference absorbing section 74.

In the data time difference absorption section 74, S /
20-bit word string data DPA ′ from P conversion section 73
(20), the 20-bit word string data DPB ′ (20) from the S / P converter 75, and the 20-bit word string data DPC ′ (20) generated from the S / P converter 76. Absorb the time difference and obtain the 20-bit word string data D
The word transmission rate based on PA ′ (20) is 74.25.
20-bit word string data DPAQ 'with MBps
(20) and 20-bit word string data DPB ′ (2
0), a 20-bit word string data DPBQ ′ (20) having a word transmission rate of 74.25 MBps,
It is aimed that the 20-bit word string data DPCQ '(20) having a word transmission rate based on the 20-bit word string data DPC' (20) of 74.25 MBps is maintained in a state where there is substantially no mutual time difference. And send them out.

20 obtained from the data time difference absorbing section 74
The bit word string data DPAQ '(20), the 20-bit word string data DPBQ' (20) and the 20-bit word string data DPCQ '(20) are supplied to the data separation units 77, 78 and 79, respectively. In the data separation unit 77, the 20-bit word string data DPAQ ′ (2
0), the auxiliary data DAA is separated, the 20-bit word string data DPAQ (20) and the auxiliary data DAA are separately transmitted, and the 20-bit word string data DPA is transmitted.
(20) is supplied to the data reproduction processing unit 80. In the data separation unit 78, the auxiliary data DAB is separated from the 20-bit word string data DPBQ '(20), and the 20-bit word string data DPBQ (20)
And the auxiliary data DAB are transmitted separately, and the 20-bit word string data DPBQ (20) is
0 is supplied. Further, in the data separating section 79, the auxiliary data DAC is separated from the 20-bit word string data DPCQ '(20), and the 20-bit word string data DPCQ (20) and the auxiliary data DAC are separately transmitted. , 20-bit word string data DPCQ (2
0) is supplied to the data reproduction processing unit 80.

In the data reproduction processing section 80, the 20-bit word string data DPAQ (20), DPBQ (2
0) and DPCQ (20) are subjected to a data reproduction process that is the reverse of the data conversion process performed on the data DVX by the data processing unit 51 on the transmission side, and the 20-bit word string data DPAQ (20) and DPBQ ( 20) and D
The data DVX based on PCQ (20) is reproduced. Such data DVX is DVA12 + DK in FIG.
A12, DVA14 + DKA14, DVA16 + DKA
16 or DVB12 + DKB12.

In the above description, the number of quantization bits is set to 1
2 bits or more for digital video signal data
12-bit, 14-bit constituting the Y data sequence
Or upper bits divided from each of the 16-bit words
A 10-bit string and P_B/ P _RConstructing a data series 1
2 bit, 14 bit or 16 bit word respectively
Is multiplexed with the upper 10-bit sequence
20-bit word string data DVA12 formed
A, DVA14A and DVA16A, and G
Data series, B data series, and R data series.
The upper 10 bits divided from each of the 12-bit words
20-bit word string data formed based on a string of bits
The DVB 12A has each of them, for example, the current 72
It is possible to record and play back with a 0P VTR
It is. Therefore, using the current 720P VTR
And 20-bit word string data DVA12A, DVA1
4A, DVA16A, DVB12A, etc.
And edit, etc., and the current 720
Using a VTR for P and a video monitor,
Sequence data DVA12A, DVA14A, DVA16
A, DVB12A, etc.
And thereby increasing the number of quantization bits to 12 bits or more.
When handling data that constitutes a digital video signal,
Be able to perform confirmation work etc. using the equipment of the line
It is very convenient.

FIG. 17 shows an example of a data transmission method according to the invention described in any one of claims 13 to 22 in the claims of the present application. A part of a data transmission / reception device including a second example of the data transmission device according to the invention described in item 26 or 27 is shown.

The data transmission / reception device whose part is shown in FIG. 17 has many parts configured similarly to the data transmission / reception device shown in FIG. 11, and FIG. 17 shows the data transmission / reception device shown in FIG. Only the parts different from those described above and the parts related thereto are shown.

In the data transmission / reception device whose part is shown in FIG. 17, the E / O conversion units 57 and 60 and the O / E conversion units 70 and 72 provided in the data transmission / reception device shown in FIG. Instead, E / O converters 81 and 82 and O / E converters 88 and 89 are provided. Further, the optical connectors 61, 63 and 65 and the optical fiber transmission line 6 provided in the data transmitting / receiving apparatus shown in FIG.
2, 64 and 66, and optical connectors 67, 69 and 7
1, an optical connector 84, an optical fiber transmission line 85
And an optical connector 86. The optical fiber transmission line 85 is formed using, for example, quartz-based SMF.

In the data transmission / reception apparatus whose part is shown in FIG. 17, serial data DSA in which the bit transmission rate from P / S conversion section 53 is 1.485 Gbps.
Is supplied to the E / O conversion unit 54, the serial data DSB from the P / S conversion unit 56 whose bit transmission rate is 1.485 Gbps is supplied to the E / O conversion unit 81, and further, the P / S conversion is performed. The serial data DSC that sets the bit transmission rate from the unit 59 to 1.485 Gbps is E
It is supplied to the / O conversion unit 82.

In the E / O converter 54, the center wavelength based on the serial data DSA is set to, for example, approximately 1.3 μm.
m and the bit transmission rate is 1.48.
5 Gbps, and the multiplexing unit 83
Lead to. In the E / O conversion unit 81, P / S
The bit transmission rate from the conversion unit 56 is 1.485 Gbp
s is subjected to electro-optical conversion processing on the serial data DSB,
The center wavelength based on the serial data DSB is, for example,
The optical signal OSB of approximately 1.48 μm is formed with a bit transmission rate of 1.485 Gbps, and is guided to the multiplexing unit 83. Further, the E / O converter 82 performs an electro-optical conversion process on the serial data DSC whose bit transmission rate from the P / S converter 59 is 1.485 Gbps, and sets a center wavelength based on the serial data DSC, for example, Optical signal OSC of approximately 1.55 μm
Is formed assuming that the bit transmission rate is 1.485 Gbps, and is guided to the multiplexing unit 83.

The multiplexing section 83 is formed by, for example, a dielectric multilayer type wavelength multiplex coupler (dielectric multilayer type WDM coupler). In the multiplexing section 83, the optical signal OSA having a center wavelength of about 1.3 μm and the center wavelength of about 1.48.
.mu.m and an optical signal OSC having a center wavelength of about 1.55 .mu.m.
Form an SZ and send it as a transmission signal. Under these circumstances, the E / O converters 54, 81 and 82 and the multiplexer 8
Reference numeral 3 designates a data transmission unit for transmitting serial data DSA, DSB and DSC obtained from the P / S conversion units 53, 56 and 59, respectively.

The multiplexed optical signal OSZ, which is a transmission signal transmitted from the multiplexing unit 83, is guided to the optical fiber transmission line 85 through the optical connector 84, and is transmitted to the receiving side through the optical fiber transmission line 85.

On the receiving side, the optical fiber transmission line 8
The multiplexed optical signal OSZ transmitted through 5 is guided to the demultiplexing unit 87 through the optical connector 86. The demultiplexer 87
For example, a dielectric multilayer WDM coupler is used as a demultiplexing unit. In the splitter 87, the multiplexed optical signal OSZ is divided into a component having a center wavelength of approximately 1.3 μm, a component having a center wavelength of approximately 1.48 μm, and a component having a center wavelength of approximately 1.55 μm. , The bit transmission rate is 1.485 Gbps, and the center wavelength is approximately 1.
An optical signal OSA of 3 μm and a bit transmission rate of 1.
485 Gbps, an optical signal OSB having a center wavelength of about 1.48 μm, and a bit transmission rate of 1.485 Gbps
s and an optical signal OSC having a center wavelength of about 1.55 μm
And play.

The optical signal OS reproduced by the demultiplexer 87
A, OSB, and OSC are O / E converters 68, 8 respectively.
8 and 89. The O / E converter 68 performs a photoelectric conversion process on the optical signal OSA having a center wavelength of approximately 1.3 μm and a bit transmission rate of 1.485 Gbps, and adjusts the bit transmission rate based on the optical signal OSA. 1. Reproduce serial data DSA at 485 Gbps. Then, the reproduced serial data DSA is S
/ P converter 73. Also, the O / E conversion unit 88
, A photoelectric conversion process is performed on an optical signal OSB having a center wavelength of about 1.48 μm and a bit transmission rate of 1.485 Gbps, and a serial transmission with a bit transmission rate of 1.485 Gbps based on the optical signal OSB. Data D
Play SB. Then, the reproduced serial data D
The SB is supplied to the S / P converter 75. In addition, O /
In the E conversion unit 89, the optical signal OSC having the center wavelength of approximately 1.55 μm and the bit transmission rate of 1.485 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSC is set to 1. The serial data DSC of 485 Gbps is reproduced. Then, the reproduced serial data DSC is supplied to the S / P converter 76.
Other operations are the same as those of the data transmitting / receiving apparatus shown in FIG.

FIG. 18 shows an example of a data transmission method according to any one of claims 13 to 22 in the claims of the present application. A part of a data transmission / reception device including a third example of the data transmission device according to the invention described in item 26 or 27 is shown.

The data transmission / reception device whose part is shown in FIG. 18 also has many parts configured similarly to the data transmission / reception device shown in FIG. 11, and FIG. 18 shows the data transmission / reception device shown in FIG. Only the parts different from those described above and the parts related thereto are shown.

In the data transmission / reception device whose part is shown in FIG. 18, the E / O conversion units 54, 57 and 60 provided in the data transmission / reception device shown in FIG.
E / O converter 9 instead of converters 68, 70 and 72
1 and 94 and O / E converters 98 and 101. Further, the optical connectors 61, 63 and 65, the optical fiber transmission lines 62, 64 and 66, and the optical connector 6 provided in the data transmitting / receiving apparatus shown in FIG.
7, 69 and 71, optical connectors 92 and 95,
Optical fiber transmission lines 93 and 96 and optical connector 9
7 and 100. Each of the optical fiber transmission lines 93 and 96 is formed using, for example, a quartz SMF.

In the data transmission / reception device whose part is shown in FIG. 18, serial data DSA whose bit transmission rate from P / S conversion section 53 is 1.485 Gbps.
And the bit transmission rate from the P / S converter 56 is 1.4
The serial data DSB of 85 Gbps is supplied to the bit multiplexing unit 90. The bit multiplexing unit 90 performs an operation of alternately extracting and sequentially arranging 1-bit addresses from each of the serial data DSA and DSB, performing a bit multiplexing / combining process on the serial data DSA and DSB, and reducing the bit transmission rate. 1.485 Gbps × 2 =
Form composite serial data DZV of 2.97 Gbps.

The composite serial data DZV obtained from the bit multiplexing section 90 is supplied to an E / O conversion section 91. E
In the / O converter 91, the composite serial data DZV
, An optical signal OZV having a center wavelength of, for example, approximately 1.3 μm is formed with a bit transmission rate of 2.97 Gbps, and transmitted as a transmission signal.

The serial data DS whose bit transmission rate from the P / S converter 59 is 1.485 Gbps
C is supplied to the E / O conversion unit 94. E / O converter 9
In No. 4, an optical signal OSC having a center wavelength of, for example, approximately 1.3 μm based on the serial data DSC is formed with a bit transmission rate of 1.485 Gbps, and is transmitted as a transmission signal. .

Under these circumstances, bit multiplexing section 90 and E / O
The conversion units 91 and 94 form a data transmission unit that transmits serial data DSA, DSB, and DSC obtained from the P / S conversion units 53, 56, and 59, respectively, for transmission.

An optical signal OZV, which is a transmission signal transmitted from the E / O converter 91, is guided to an optical fiber transmission line 93 through an optical connector 92, and transmitted to a receiving side through the optical fiber transmission line 93. Also, the E / O conversion unit 94
The optical signal OSC, which is a transmission signal transmitted from the optical fiber, is guided to the optical fiber transmission line 96 through the optical connector 95, and is transmitted to the receiving side through the optical fiber transmission line 96.

On the receiving side, the optical fiber transmission line 9
The optical signal OZV transmitted through the optical connector 97
To the O / E converter 98. The optical signal OSC transmitted through the optical fiber transmission line 96 is
The light is guided to the O / E converter 101 through the optical connector 100.

The O / E converter 98 has a center wavelength of about 1.3 μm and a bit transmission rate of 2.97 Gbp.
s is subjected to photoelectric conversion processing on the optical signal OZV, and the bit transmission rate based on the optical signal OZV is set to 2.97 Gbps.
Is reproduced. And
The reproduced composite serial data DZV is supplied to the bit separation unit 99.

The bit separation section 99 takes out one bit at a time from the composite serial data DZV, performs an operation of forming every other two bit groups, and performs bit separation processing on the composite serial data DZV. . Then, a channel is specified by using the channel identification data included in the composite serial data DZV, and each of the channels is set to a bit transmission rate of 2. based on the composite serial data DZV.
Two-channel serial data DSA and DSB with 97 Gbps / 2 = 1.485 Gbps are formed. The serial data DSA is supplied to the S / P converter 73,
The serial data DSB is supplied to the S / P converter 75.

In the O / E converter 101, the center wavelength is set to approximately 1.3 μm, and the bit transmission rate is set to 1.4.
The optical signal OSC of 85 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSC is set to 1.4.
The serial data DSC of 85 Gbps is reproduced.
Then, the reproduced serial data DSC is supplied to the S / P converter 76. Other operations are the same as those of the data transmitting / receiving apparatus shown in FIG.

FIG. 19 shows an example of a data transmission method according to any one of claims 13 to 22 in the claims of the present application. A part of a data transmission / reception device including a fourth example of the data transmission device according to the invention described in item 26 or 27 is shown.

The data transmission / reception device whose part is shown in FIG. 19 has many parts configured similarly to the data transmission / reception device whose part is shown in FIG. 18, and FIG. 19 shows the data transmission / reception device shown in FIG. Blocks corresponding to the respective blocks in the transmission / reception device are denoted by the same reference numerals as in FIG. 18, and redundant description thereof will be omitted.

In the data transmission / reception device whose part is shown in FIG. 19, serial data DSC from the P / S conversion section 59 at a bit transmission rate of 1.485 Gbps is E / E
It is supplied to the O conversion unit 105. In the E / O conversion unit 105, the center wavelength based on the serial data DSC is
For example, an optical signal OSC of about 1.55 μm is formed with a bit transmission rate of 1.485 Gbps.

The center wavelength from the E / O converter 91 is set to approximately 1.3 μm, and the bit transmission rate is set to 2.97 G.
The optical signal OZV at bps and the optical signal OSC from the E / O converter 105 having a center wavelength of approximately 1.55 μm and a bit transmission rate of 1.485 Gbps are guided to the multiplexer 106. The multiplexing unit 106 is formed by, for example, a fiber-type WDM coupler. Multiplexing section 10
6, optical signal O having a center wavelength of approximately 1.3 μm
ZV and an optical signal OSC having a center wavelength of about 1.55 μm are multiplexed and multiplexed to form a multiplexed optical signal OZZ, which is transmitted as a transmission signal. Under these circumstances, the E / O conversion units 91 and 105 and the multiplexing unit 106 correspond to the serial data D obtained from the P / S conversion units 53, 56 and 59, respectively.
A data transmission unit for transmitting SA, DSB and DSC is formed.

A multiplexed optical signal OZZ, which is a transmission signal transmitted from the multiplexing unit 106, is guided to an optical fiber transmission line 108 through an optical connector 107, and
08 and transmitted to the receiving side. The optical fiber transmission line 108 is formed using, for example, a quartz SMF.

On the receiving side, the optical fiber transmission line 1
The multiplexed optical signal OZZ transmitted through 08 is guided to the demultiplexing unit 110 through the optical connector 109. Demultiplexer 1
10 is formed by using, for example, a fiber type WDM coupler as a demultiplexing unit. Then, the demultiplexing unit 110
, The multiplexed optical signal OZZ has a center wavelength of about 1.3.
The optical signal OZV having a bit transmission rate of 2.97 Gbps and a center wavelength of about 1.3 μm, and a bit transmission rate of 1 μm and a component having a center wavelength of about 1.55 μm. .485 Gbps, and an optical signal OSC having a center wavelength of about 1.55 μm.

The optical signal OZ reproduced by the demultiplexer 110
V and OSC are O / E converters 111 and 112, respectively.
It is led to. In the O / E converter 111, the center wavelength is set to approximately 1.3 μm, and the bit transmission rate is set to 2.97G.
The optical signal OZV at bps is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OZV is set to 2.97 Gb.
The composite serial data DZV of ps is reproduced. Then, the reproduced composite serial data DZV is supplied to the bit separation unit 99. The O / E converter 112 performs a photoelectric conversion process on an optical signal OSC having a center wavelength of about 1.55 μm and a bit transmission rate of 1.485 Gbps to perform bit transmission based on the optical signal OSC. Serial data DSC with a rate of 1.485 Gbps
To play. Then, the reproduced serial data DSC
Is supplied to the S / P converter 76. Other operations are
This is the same as the data transmitting / receiving device whose part is shown in FIG.

[0159]

As is clear from the above description, the features of the present application are as follows.
Claims 1 to 22 in the claims
A data transmission method according to the invention described in any of the above,
Is described in any one of claims 23 to 27.
In the data transmission device according to the invention, the quantization bit
10 bits, 12 bits, 14 bits or 1
Digital data of 720P signal with 6 bits
A certain Y data series and P _B/ P_RData series or
Are G data series, B data series and R data series,
Data format equivalent to Y data series or G data series
For example, a digital video signal having a
Key signal data sequence related to digital data
And the additional information data sequence is Y
Data series and P_B/ P_RData series or G
Data series, B data series and R data series
Each of them has a word transmission rate of 74.25.
Convert to multiple 20-bit word string data with MBps
And a plurality of such 20-bit word string data
After converting each to serial data and transmitting
Become.

Each of them sets the word transmission rate to 74.
The processing of a plurality of 20-bit word string data of 25 MBps and the processing of converting each of them into serial data and transmitting the serial data are performed by the conventional digital data forming an HD digital video signal having a quantization bit number of 10 bits. This is a process that can be performed using circuit components used for serial transmission. Further, Y data series and P _B / P _R data sequence or,, G data series, the additional information data series are those associated with B data series, and R data series, Y data series and P _B / P _R data A sequence or a Key signal data sequence related to digital data forming a digital video signal including a G data sequence, a B data sequence, and an R data sequence.

Therefore, the data transmission method according to any one of claims 1 to 22 or the claims 23 to 27 in the claims of the present application. According to the data transmission apparatus of the present invention, transmission of digital data forming a digital video signal having a quantization bit number of 10 bits or more and a key signal data sequence related thereto is performed by a digital signal transmitting the key signal data sequence. It can be performed in the state of an additional information data sequence attached to digital data forming a video signal, and the transmission is performed, for example, in serial transmission of digital data forming a digital video signal having a quantization bit number of 10 bits. It can be implemented appropriately using existing circuit components used.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a data transmission method according to any one of claims 1 to 12 in the claims of the present application; FIG. 26 is a block connection diagram showing a data transmission / reception device including a first example of the data transmission device according to the invention described in any one of claims 25 to 25.

FIG. 2 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 3 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 4 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 5 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 6 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 7 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 8 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 9 is a diagram illustrating an example of a data transmission method according to any one of claims 1 to 12 according to the present invention; FIG. 26 is a block connection diagram showing a part of a data transmission / reception device including a second example of the data transmission device according to the invention described in any one of claims 25 to 25.

FIG. 10 is a block diagram showing an embodiment of a data transmission method according to any one of claims 1 to 12 according to the present invention; FIG. 26 is a block connection diagram showing a part of a data transmitting / receiving device including a third example of the data transmission device according to the invention described in any one of claims 25 to 25.

FIG. 11: Claim 13 in the claims of the present application
To the invention according to any one of claims 26 to 27, wherein the example of the data transmission method according to the invention described in any one of claims to 22 is implemented. FIG. 2 is a block diagram illustrating a data transmission / reception device including a first example.

12 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmission / reception device shown in FIG.

FIG. 13 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 14 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 15 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 16 is a conceptual diagram showing data used for explaining the operation of a data processing unit in the data transmitting / receiving apparatus shown in FIG.

FIG. 17: Claim 13 in the claims of the present application
To the invention according to any one of claims 26 to 27, wherein the example of the data transmission method according to the invention described in any one of claims to 22 is implemented. It is a block connection diagram showing the portion of the data transmission / reception device including the second example.

FIG. 18: Claim 13 in the claims of the present application
To the invention according to any one of claims 26 to 27, wherein the example of the data transmission method according to the invention described in any one of claims to 22 is implemented. It is a block connection diagram showing a portion of a data transmission / reception device including a third example.

FIG. 19: Claim 13 in the claims of the present application
To the invention according to any one of claims 26 to 27, wherein the example of the data transmission method according to the invention described in any one of claims to 22 is implemented. It is a block connection diagram showing a portion of a data transmission / reception device including a fourth example.

FIG. 20 is a conceptual diagram explaining an example of a data format of an HD digital video signal.

FIG. 21 is a conceptual diagram illustrating an example of a data format of an HD digital video signal.

FIG. 22 is a table used for explaining data including digital data forming a 720P signal and digital data forming a Key signal accompanying the data.

[Explanation of symbols]

11, 51 ... data processing unit, 12, 15, 52,
55, 58 ... data insertion part, 13, 16, 53,
56, 59... P / S converter, 14, 17, 35,
43, 54, 57, 60, 81, 82, 91, 94, 1
05 ... E / O conversion unit, 18, 20, 22, 24,
37, 39, 45, 47, 61, 63, 65, 67, 6
9,71,84,86,92,95,97,100,1
07, 109 ... optical connector, 19, 21, 38,
46, 62, 64, 66, 85, 93, 96, 108
..Optical fiber transmission lines, 23, 25, 41, 48,
68, 70, 72, 88, 89, 98, 101, 11
1, 112... O / E converter, 26, 30, 73,
75, 76 ... S / P converter, 28, 31, 77 ~
79: data separation unit, 29, 74: data time difference absorption unit, 32, 80: data reproduction processing unit,
36, 83, 106 .. Combining part, 40, 87, 110
..Demultiplexing parts, 42, 90... Bit multiplexing parts, 4
9, 99 ... bit separation unit

[Procedure amendment]

[Submission date] May 1, 2001 (2001.5.1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

In view of the above, the invention described in the claims of the present application provides transmission of digital data forming a 720P signal having a quantization bit number of 10 bits or more and a key signal data sequence related thereto. , Key Canada signal data series can be a carried out in a state in which the additional information data sequence associated with the digital data constituting a 720 P signal transmitted, moreover, to the transmission, for example, the number of quantization bits of 10-bit digital Provided is a data transmission method and a data transmission apparatus that can be appropriately implemented by utilizing existing circuit components used for serial transmission of digital data forming a video signal.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (reference) H04N 7/22 11/24 F term (reference) 5C057 AA03 BA11 CB04 CB08 CC03 CE10 EA01 EA02 5C064 EA03 5K002 AA01 AA03 DA02 DA05 GA01 5K028 AA11 BB08 EE03 KK01 KK03 KK18 NN01 SS06 SS16

Claims (27)

[Claims] 1. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750 lines, the number of effective lines in each frame is set to 720 lines, and the number of effective data samples in each line is set to 1280 samples. Each has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps with a quantization bit number of 10 bits, a data format equivalent to the luminance signal data sequence, and a quantization bit number of A 30-bit parallel data including an additional information data sequence having a word transmission rate of 74.25 MBps as 10 bits, and a first word transmission rate of 74.25 MBps based on the luminance signal data sequence and the color difference signal data sequence. 20-bit word string data and the above Data processing is performed to form second 20-bit word string data having a word transmission rate of 74.25 MBps based on the information data series, and first and second 20-bit word string data based on the first and second 20-bit word string data, respectively. Obtaining a second serial data, the first and second serial data;
A data transmission method for transmitting serial data for transmission. 2. The data transmission method according to claim 1, wherein the additional information data sequence represents key signal information on a digital video signal. 3. The method according to claim 1, wherein the first and second serial data are subjected to a bit multiplexing process to obtain composite serial data, and the composite serial data is transmitted through one data transmission line. Data transmission method. 4. Converting the first and second serial data into first and second optical signals having different center wavelengths, respectively.
3. The optical system according to claim 1, wherein the first and second optical signals are multiplexed and transmitted through one optical signal transmission line.
Data transmission method as described. 5. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280. A green primary color signal data sequence, a blue primary color signal data sequence and a red primary color signal data sequence each having a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps, and a data format equivalent to the green primary color signal data sequence. And the word transmission rate is 74.25M with the number of quantization bits being 10 bits.
The 10-bit word forming each of the green primary color signal data sequence, the blue primary color signal data sequence, the red primary color signal data sequence, and the additional information data sequence is added to the 40-bit parallel data including the additional information data sequence of Bps. A first word group including a 10-bit word forming a green primary color signal data sequence and a part of a 10-bit word forming each of the blue primary color signal data sequence and the red primary color signal data sequence; , And a second word group including the other part of the 10-bit word forming each of the blue primary color signal data sequence and the red primary color signal data sequence. 20-bit word string data with a word transmission rate of 74.25 MBps based on , Based on the second word group, the second to 74.25MBps word transmission rate
Of the first and second 20-bit word string data to obtain first and second serial data based on the first and second 20-bit word string data, respectively. A data transmission method that sends out data for transmission. 6. The data transmission method according to claim 5, wherein the additional information data sequence represents key signal information on a digital video signal. 7. The composite serial data obtained by subjecting the first and second serial data to bit multiplexing processing and transmitting the composite serial data through one data transmission line. Data transmission method. 8. Converting the first and second serial data into first and second optical signals having different center wavelengths, respectively.
7. The optical system according to claim 5, wherein the first and second optical signals are multiplexed and transmitted through one optical signal transmission line.
Data transmission method as described. 9. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280. Each has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps with a quantization bit number of 12 bits, and a data format equivalent to the luminance signal data sequence. Each of the 12-bit words forming the luminance signal data sequence, the chrominance signal data sequence, and the additional information data sequence is added to 36-bit parallel data including an additional information data sequence having a word transmission rate of 74.25 MBps as 12 bits. Divided into upper 10 bits and lower 2 bits The first 20-bit word string data having a word transmission rate of 74.25 MBps based on a plurality of upper 10 bits divided from the luminance signal data sequence and the chrominance signal data sequence, and divided from the additional information data sequence The word transmission rate based on the plurality of upper 10 bits, the lower 2 bits divided from the luminance signal data sequence and the chrominance signal data sequence, and the lower 2 bits divided from the additional information data sequence is set to 74. .25 MBps and a second 20-bit word string data,
And a first 20-bit word string data based on
And a second serial data, and transmitting the first and second serial data for transmission. 10. The data transmission method according to claim 9, wherein the additional information data sequence represents key signal information on a digital video signal. 11. The method according to claim 9, wherein the first and second serial data are subjected to bit multiplexing processing to obtain composite serial data, and the composite serial data is transmitted through one data transmission path. Data transmission method. 12. The first and second serial data are converted into first and second optical signals having different center wavelengths from each other, and the first and second optical signals are multiplexed. The data transmission method according to claim 9, wherein the data is transmitted through two optical signal transmission paths. 13. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750 lines, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280 samples. , Each having 12 quantization bits
It has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps as bits, 14 bits or 16 bits, a data format equivalent to the luminance signal data sequence, and has a quantization bit number of 12 bits. A 36-bit, 42-bit, or 48-bit parallel data including a 14-bit or 16-bit additional information data sequence having a word transmission rate of 74.25 MBps is added to the luminance signal data sequence, the chrominance signal data sequence, and the additional information data sequence. Each of the 12-bit, 14-bit or 16-bit words forming each is divided into upper 10 bits and lower 2 bits, 4 bits or 6 bits, and a plurality of divisions are made from the luminance signal data sequence and the chrominance signal data sequence. Word transmission based on upper 10 bits A word transmission rate of 74 based on first 20-bit word string data having a rate of 74.25 MBps and a plurality of lower 2 bits, 4 bits, or 6 bits divided from the luminance signal data sequence and the chrominance signal data sequence. The word transmission rate is 74.25 MBps based on second 20-bit word string data of .25 MBps and a plurality of upper 10 bits and a plurality of lower 2 bits, 4 bits or 6 bits divided from the additional information data sequence. Data processing for forming the third 20-bit word string data
Obtaining first, second and third serial data based on the second and third 20-bit word string data, respectively;
A data transmission method for transmitting second and third serial data for transmission. 14. The data transmission method according to claim 13, wherein the additional information data sequence represents key signal information on a digital video signal. 15. A composite serial data is obtained by performing bit multiplexing processing on two of the first, second and third serial data, and combining the composite serial data with the first, second and third serial data. 15. The data transmission method according to claim 13, wherein the remaining one of the data is transmitted through each of two data transmission paths. 16. Converting the composite serial data and the remaining one of the first, second, and third serial data into first and second optical signals having different center wavelengths, respectively. 16. The data transmission method according to claim 15, wherein the first and second optical signals are multiplexed and transmitted through one optical signal transmission line. 17. The first, second, and third serial data are converted into first, second, and third optical signals having different center wavelengths, respectively, and the first, second, and third optical signals are converted. 15. The data transmission method according to claim 13, wherein the optical signals are multiplexed and transmitted through one optical signal transmission line. 18. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280 samples. , Each having 12 quantization bits
It has a green primary color signal data sequence, a blue primary color signal data sequence, and a red primary color signal data sequence having a word transmission rate of 74.25 MBps as bits, and a data format equivalent to the green primary color signal data sequence. Word transmission rate of 74.25 as 12 bits
The 48-bit parallel data including the MBps and the additional information data sequence includes 12-bit words for forming the green primary color signal data sequence, the blue primary color signal data sequence, the red primary color signal data sequence, and the additional information data sequence, respectively. The upper 10 bits are divided into upper 10 bits and lower 2 bits, and the upper 10 bits divided from the green primary color signal data sequence and the upper 10 bits divided from each of the blue primary color signal data sequence and the red primary color signal data sequence. 74.25 MBp word transmission rate based on fraction of bits
s, the first 20-bit word string data, another part of a plurality of upper 10 bits divided from each of the blue primary color signal data series and the red primary color signal data series, and the green primary color signal data series, A plurality of lower 2 divided from the blue primary color signal data series and the red primary color signal data series
74.25 MB word transmission rate based on bits
The second 20-bit word string data of ps and the third 20 bits of a word transmission rate of 74.25 MBps based on a plurality of upper 10 bits and a plurality of lower 2 bits divided from the additional information data sequence Data processing for forming word string data is performed, and the first, second and third 20-bit word string data are respectively processed based on the first, second and third 20-bit word string data.
A data transmission method for obtaining second and third serial data and transmitting the first, second, and third serial data for transmission. 19. The data transmission method according to claim 18, wherein the additional information data sequence represents key signal information on a digital video signal. 20. Bit multiplexing processing is performed on two of the first, second and third serial data to obtain composite serial data, and the composite serial data is combined with the first, second and third serial data. 20. The data transmission method according to claim 18, wherein the remaining one of the data is transmitted through each of two data transmission paths. 21. Converting the composite serial data and the remaining one of the first, second, and third serial data into first and second optical signals having different center wavelengths, respectively. 21. The data transmission method according to claim 20, wherein the first and second optical signals are multiplexed and transmitted through one optical signal transmission line. 22. The first, second, and third serial data are converted into first, second, and third optical signals having different center wavelengths, respectively, and the first, second, and third optical signals are converted. 20. The data transmission method according to claim 18, wherein the optical signals are multiplexed and transmitted through one optical signal transmission line. 23. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280. , Each having 10 quantization bits
It has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps as bits and a data format equivalent to the luminance signal data sequence, and has a quantization bit number of 10 bits and a word transmission rate of 74.25 MBps. 30-bit parallel data including an additional information data sequence of 25 MBps, first 20-bit word string data having a word transmission rate of 74.25 MBps based on the luminance signal data sequence and the color difference signal data sequence, and the additional data A data processing unit for performing data processing for forming second 20-bit word string data having a word transmission rate of 74.25 MBps based on the information data sequence; and a first processing unit based on the first 20-bit word string data. A first parallel / serial converter for obtaining serial data; A second parallel / serial converter that obtains second serial data based on the second 20-bit word string data; and a first and second serial converter that are respectively obtained from the first and second parallel / serial converters. A data transmission unit configured to transmit data to transmit the data. 24. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280 samples. , Each having 10 quantization bits
It has a green primary color signal data sequence, a blue primary color signal data sequence, and a red primary color signal data sequence with a word transmission rate of 74.25 MBps as bits, and a data format equivalent to the green primary color signal data sequence. Word transmission rate of 74.25 as 10 bits
A 10-bit word forming each of the green primary color signal data sequence, the blue primary color signal data sequence, the red primary color signal data sequence, and the additional information data sequence is added to the 40-bit parallel data including the additional information data sequence of MBps.
A first word group including a 10-bit word forming the green primary color signal data sequence and a part of a 10-bit word forming each of the blue primary color signal data sequence and the red primary color signal data sequence; The first word is divided into a second word group including a 10-bit word forming a sequence and another part of the 10-bit word forming each of the blue primary color signal data sequence and the red primary color signal data sequence. First 20-bit word string data having a word transmission rate of 74.25 MBps based on the group, and second 20-bit word string data having a word transmission rate of 74.25 MBps based on the second word group. A data processing unit for performing data processing for forming A first parallel / serial converter that obtains one serial data; a second parallel / serial converter that obtains second serial data based on the second 20-bit word string data; And a data transmission unit for transmitting the first and second serial data respectively obtained from the parallel / serial conversion unit. 25. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280 samples. , Each having 12 quantization bits
It has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps as bits and a data format equivalent to the luminance signal data sequence, and has a quantization bit number of 12 bits and a word transmission rate of 74.25 MBps. To 36-bit parallel data including an additional information data sequence of 25 MBps, 12-bit words forming each of the above-mentioned luminance signal data sequence, chrominance signal data sequence and additional information data sequence are divided into upper 10 bits and lower 2 bits. First 20-bit word string data having a word transmission rate of 74.25 MBps based on a plurality of upper 10 bits divided from the luminance signal data sequence and the chrominance signal data sequence, and the additional information data sequence A plurality of upper 10 bits divided from the luminance signal data system And second 20-bit word string data having a word transmission rate of 74.25 MBps based on a plurality of lower 2 bits divided from the color difference signal data sequence and a plurality of lower 2 bits divided from the additional information data sequence. A data processing unit for performing data processing for forming the first 20-bit word string data; a first parallel / serial conversion unit for obtaining first serial data based on the first 20-bit word string data; A second parallel / serial converter for obtaining second serial data based on the data, and a data transmission for transmitting the first and second serial data obtained from the first and second parallel / serial converters, respectively. And a data transmission device configured to include a unit. 26. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750 lines, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280 samples. , Each having 12 quantization bits
It has a luminance signal data sequence and a chrominance signal data sequence having a word transmission rate of 74.25 MBps as bits, 14 bits or 16 bits, a data format equivalent to the luminance signal data sequence, and has a quantization bit number of 12 bits. A 36-bit, 42-bit, or 48-bit parallel data including a 14-bit or 16-bit additional information data sequence having a word transmission rate of 74.25 MBps is added to the luminance signal data sequence, the chrominance signal data sequence, and the additional information data sequence. Each of the 12-bit, 14-bit or 16-bit words forming each is divided into upper 10 bits and lower 2 bits, 4 bits or 6 bits, and a plurality of divisions are made from the luminance signal data sequence and the chrominance signal data sequence. Word transmission based on upper 10 bits A word transmission rate of 74 based on first 20-bit word string data having a rate of 74.25 MBps and a plurality of lower 2 bits, 4 bits, or 6 bits divided from the luminance signal data sequence and the chrominance signal data sequence. The word transmission rate is 74.25 MBps based on second 20-bit word string data of .25 MBps and a plurality of upper 10 bits and a plurality of lower 2 bits, 4 bits or 6 bits divided from the additional information data sequence. A data processing unit that performs data processing to form third 20-bit word string data, and a first parallel / serial conversion unit that obtains first serial data based on the first 20-bit word string data. A second parameter for obtaining second serial data based on the second 20-bit word string data. A real / serial conversion unit; a third parallel / serial conversion unit for obtaining third serial data based on the third 20-bit word string data; and the first, second and third parallel / serial conversion units And a data transmission unit for transmitting the first, second, and third serial data respectively obtained from the data transmission unit. 27. A digital video signal in which the frame rate is set to 60 Hz, the number of lines in each frame is set to 750, the number of effective lines in each frame is set to 720, and the number of effective data samples in each line is set to 1280. , Each having 12 quantization bits
It has a green primary color signal data sequence, a blue primary color signal data sequence, and a red primary color signal data sequence with a word transmission rate of 74.25 MBps as bits, and a data format equivalent to the green primary color signal data sequence. Word transmission rate of 74.25 as 12 bits
Each of the 12-bit words forming the green primary color signal data sequence, the blue primary color signal data sequence, the red primary color signal data sequence and the additional information data sequence is added to 48-bit parallel data including an additional information data sequence of MBps, A plurality of upper 10 bits divided from the upper 10 bits and lower 2 bits and divided from the green primary color signal data sequence and a plurality of upper 10 bits divided from the blue primary color signal data sequence and the red primary color signal data sequence, respectively. 74.25 MBp word transmission rate based on fraction of bits
s, the first 20-bit word string data, another part of a plurality of upper 10 bits divided from each of the blue primary color signal data series and the red primary color signal data series, and the green primary color signal data series, A plurality of lower 2 divided from the blue primary color signal data series and the red primary color signal data series
74.25 MB word transmission rate based on bits
The second 20-bit word string data of ps and the third 20 bits of a word transmission rate of 74.25 MBps based on a plurality of upper 10 bits and a plurality of lower 2 bits divided from the additional information data sequence A data processing unit that performs data processing for forming word string data; a first parallel / serial conversion unit that obtains first serial data based on the first 20-bit word string data; A second parallel / serial converter that obtains second serial data based on the word string data, a third parallel / serial converter that obtains third serial data based on the third 20-bit word string data, To transmit first, second, and third serial data obtained from the first, second, and third parallel / serial conversion units, respectively. And a data transmission unit for transmitting the data.