JP2003046965A - Method and device for transmitting data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly realize the serial transmission of digital data constituting a telecine signal by using current circuit constituting elements to be used for serial transmission following HD SDI. SOLUTION: Among data representing a main central portion of each frame picture included in digital data constituting a telecine signal, first HD digital video signal data having a valid line portion where word row data based on the first portion of the above mentioned data is arranged, and second HD digital video signal data having a valid line portion where word row data based on the second portion of the above mentioned data is arranged are formed. Then, the first and second HD digital video signal data are respectively converted into serial digital data and transmitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention described in the claims of the present application is such that a plurality of digital video signals representing an image recorded on a video film, each of which comprises 20-bit word string data, are provided. The present invention relates to a data transmission method for converting into parallel digital video signal data, and serially transmitting each of them, and a data transmission device used for the same.

[0002]

2. Description of the Related Art In the field of video signals, digitization has been attempted from the viewpoint of diversifying transmission information and improving the quality of reproduced images. For example, it is formed by digital data representing video signal information. High Definition Television (High Definition Television) that handles digital video signals
on Television (HDTV) system and the like have been proposed. A digital video signal (hereinafter referred to as an HD digital video signal) under the HDTV system is, for example, BTA (Broadcasting Technology Association:
It is formed in accordance with the standards established by the Broadcasting Technology Development Council), and there are Y, P _B / P _R format and G, B, R format. In the case of Y, P _B / P _R format, Y means a luminance signal, and P _B and P _R mean color difference signals. 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.

HD digital video signals of Y, P _B / P _R format have a frame rate of 30 Hz or 30/1.
001Hz (In the present application, both of these are 30H
called z. ), Each frame image is divided into a first field image and a second field image to form an interlaced scanning signal. And Y, P
The HD digital video signal of the _B / P _R format has a Y data sequence and P _B / P, each of which has a quantization bit number of 10 bits to form 10-bit word string data.
_It consists of _R data series.

HD digital video signals of G, B, and R formats are also signals for interlaced scanning at a frame rate of 30 Hz. The HD digital video signals of the G, B, and R formats each have a quantization bit number of 10 bits, and form 10-bit word string data. The G data series, the B data series, and the R data series. Consists of.

In the current HDTV system, the Y, P _B / P _R format or G, for interlaced scanning under the frame rate of 30 Hz as described above is used.
HD digital video signals of B and R formats are used, but in contrast to this, as a next-generation HDTV system,
Y, P _B , which are for sequential scanning in which each frame image is sequentially formed without being divided into the first and second fields
A system using an HD digital video signal of / P _R format or G, B, R format has been proposed. An HD digital video signal of Y, P _B / P _R format or G, B, R format for progressive scanning is progressive (Progres).
This is referred to as a ssive) HD digital video signal (hereinafter referred to as a progressive HD signal).

Digital data forming a progressive HD signal is SMPTE (Society of Motion Pict) in the United States.
ure and Television Engineers: Standards established by the Society for Motion Picture and Television Engineers: SMPTE 247M is being standardized. Such SMPTE 2
In the format standardized by 47M, the frame rate is 60 Hz or 60 / 1.001.
Hz (in the present application, these are all referred to as 60 Hz), 50 Hz, 30 Hz, 25 Hz, or 2
4 Hz or 24 / 1.001 Hz (both of which are referred to as 24 Hz in the present application) is defined, the total number of lines per frame is 1125, and the number of effective lines per frame is 108.
0 lines are defined, the total number of data samples per line is 2200, 2640 or 2750 samples, and the number of valid data samples per line is 1920 samples,
The sampling frequency is 148.5 MHz or 148.5 / 1.001 MHz (in the present application, these are all referred to as 148.5 MHz), or
74.25MHz or 74.25 / 1.001MH
z (in the present application, any of these is 74.25 MH
called z. ) Is defined, and the number of quantization bits is defined as 8 bits or 10 bits. The parallel data interface has 8 bits × 2 = 16 bits or 10 bits × 2 = 20 bits in the Y, P _B / P _R format, and 8 bits × 3 = in the G, B, R format. It is 24 bits or 10 bits × 3 = 30 bits.

FIG. 23 shows a frame rate of 24 Hz, 2
The data format showing the frame structure of the progressive HD signal which is 5 Hz or 30 Hz is shown.
In FIG. 23, L1 to L1125 represent lines,
S0 to S2749 represent data samples, EAV
And SAV are End of Active Video and Start, respectively.
Represents a timing reference code called of Active Video.

Further, FIG. 24 shows a progressive HD signal having a frame structure as shown in FIG. 23, and Y, P _B / P _{R in} which the number of quantization bits is 10 bits.
The data format that represents the line configuration of the format is shown. Also in FIG. 24, S0 to S1919 represent data samples.

Under these circumstances, an image on a film (video film) in which an image such as a movie film is recorded by being divided into a plurality of "frames" is reproduced with an image quality equivalent to that obtained by an HDTV system. A digital video signal has been proposed which sequentially represents each frame image of a video film used as one frame image. Hereinafter, such a digital video signal is referred to as a telecine signal.

The telecine signal has, for example, a frame rate of 24 Hz, 25 Hz or 30 Hz, a number of lines per frame of 1556 and a data sample number of 2048 samples per line, or a number of lines per frame. 1080
The number of data samples per line is set to 2560, and the number of quantization bits is set to 10 bits in G, B, R formats (or Y, P _B).
/ P _R format), which is a standard progressive digital video signal.

FIG. 25 shows an example of a data format showing a frame structure of digital data (DTC) forming the telecine signal as described above. In FIG. 25,
L0001 to L1556 or L0001 to L108
0 is 1556 lines or 1080 in one frame
GD, BD, and RD represent G data series data, B data series data, and R data series data in each line, respectively.
Each of these data GD, BD and RD is 2048
It is composed of samples or 2560 samples, and the number of quantization bits is 10 bits.

[0012]

As shown in FIG. 25, the number of lines per frame is 1556 and the number of data samples per line is 2048, or the number of lines per frame is 1080. When transmitting digital data forming a telecine signal, which is assumed to be a line and the number of data samples per line is 2560 samples, the transmission line configuration is simplified as in the case of other digital data. Since advantages such as easy handling of data in the transmission / reception unit are obtained, serial transmission that is converted into serial data and transmitted is desired.

However, regarding the digital video signal, the digital data forming the HD digital video signal of Y, P _B / P _R format in which the number of quantization bits is 8 bits or 10 bits is defined by the above-mentioned BTA standard. HD SDI (High Defin) by BTA S-004
transmission of digital data is standardized, but digital data in other formats, including telecine signals, is not standardized. And, at present, serial transmission of digital data forming a telecine signal is performed on digital data forming an HD digital video signal, for example,
There is no concrete example of a transmission system that can be appropriately realized by using the existing circuit components used for serial transmission according to HD SDI according to the standard BTA S-004. Further, no documents or the like describing the technology relating to such a serial transmission system can be found.

In view of this point, the invention described in the claims of the present application has, for example, a frame rate of 24H.
z, 25 Hz or 30 Hz, the number of lines per frame is 1556, and the number of data samples per line is 2048,
Alternatively, the number of lines per frame is set to 1080 and the number of data samples per line is set to 25.
The number of quantization bits is 10
A data transmission method and a data transmission method capable of appropriately realizing serial transmission of digital data forming a bite telecine signal, for example, by utilizing existing circuit components used for serial transmission according to HD SDI. Provided is a data transmission device used for implementation.

[0015]

The data transmission method according to the invention described in any one of claims 1 to 10 in the claims of the present application is included in digital data forming a telecine signal. First parallel digital video signal data having an effective line portion in which word string data based on a first portion of data representing the main central portion of each frame image, and the main central portion of each frame image described above And second parallel digital video signal data having an effective line portion in which word string data based on a second portion of the data representing the first parallel digital video signal data are formed, respectively. It is supposed to be converted into first and second serial digital data and sent out for transmission.

Particularly, in the data transmission method according to the second aspect of the present invention, the word string data based on the data representing a portion other than the main central portion of each frame image included in the digital data forming the telecine signal, It is arranged in the blanking section in the first and second parallel digital video signal data.

Further, in the data transmission method according to the present invention as defined in claim 3, word string data based on data representing a portion other than the main central portion of each frame image included in the digital data forming the telecine signal, In the effective line portion of the parallel digital video signal data of No. 2, the word string data based on the second portion of the data representing the main central portion of each frame image is superimposed and arranged.

Claim 11 in the claims of the present application
The data transmission method according to any one of claims 1 to 19 is based on the first part of the digital data forming the telecine signal and the data representing the main central part of each frame image included therein. First parallel digital video signal data having an effective line portion in which word string data is arranged, and word string data based on a second part of the data representing the main central part of each frame image described above are arranged. An effective line in which second parallel digital video signal data having an effective line portion and word string data based on data representing a portion other than the main central portion of each frame image included in the digital data forming the above-mentioned telecine signal are arranged Third with parts
Parallel digital video signal data of the above, and converts the first, second and third parallel digital video signal data into first, second and third serial digital data, respectively, and sends them for transmission. To be done.

Claim 20 within the scope of the claims of the present application
The data transmission device according to any one of claims 1 to 25 is based on the first part of the digital data forming the telecine signal and the data representing the main central part of each frame image included therein. First parallel digital video signal data having an effective line portion in which word string data is arranged, and word string data based on a second part of the data representing the main central part of each frame image described above are arranged. A data processing section forming second parallel digital video signal data having an effective line section, and first and second data processing sections obtained from the data processing section.
For converting the parallel digital video signal data of the above into first and second serial digital data, respectively.
And a data sending unit for sending out the first and second serial digital data obtained from the first and second parallel / serial converting units, respectively, for transmission.

Particularly, in the data transmission apparatus according to the invention described in claim 21, the data processing unit has a word based on data representing a part other than the main central part of each frame image included in the digital data forming the telecine signal. The column data is arranged in the blanking section in the first and second parallel digital video signal data, and is configured.

Further, in the data transmission apparatus according to the invention described in claim 22, the data processing unit has a word based on data representing a portion other than the main central portion of each frame image included in the digital data forming the telecine signal. The column data is arranged in the effective line portion of the second parallel digital video signal data so as to be superimposed on the word column data based on the second portion of the data representing the main central portion of each frame image. Is configured.

Claim 26 in the claims of the present application
The data transmission device according to any one of claims 1 to 31 is based on a first part of the digital data forming the telecine signal and the data representing the main central part of each frame image included therein. First parallel digital video signal data having an effective line portion in which word string data is arranged, and word string data based on a second part of the data representing the main central part of each frame image described above are arranged. An effective line in which second parallel digital video signal data having an effective line portion and word string data based on data representing a portion other than the main central portion of each frame image included in the digital data forming the above-mentioned telecine signal are arranged Third with parts
Data processing section for forming parallel digital video signal data, and the first, second and third parallel digital video signal data obtained from the data processing section, respectively.
First, second and third parallel / serial conversion sections for converting into second and third serial digital data, and first, first and second parallel / serial conversion sections respectively obtained from the first, second and third parallel / serial conversion sections. And a data sending unit for sending the second and third serial digital data to be transmitted.

A data transmission method according to the invention described in any one of claims 1 to 10 in the claims of the present application as described above, or any one of claims 20 to 25 In the data transmission apparatus according to the described invention, for example, the frame rate is 24
Hz, 25 Hz or 30 Hz, with 1556 lines per frame and 2048 data samples per line, or 1080 lines per frame and data samples per line The digital data forming the telecine signal, whose number of quantization bits is 10 bits, is based on the first part of the data representing the main central part of each frame image included therein. First parallel digital video signal data having an effective line portion in which word string data is arranged, and effective line in which word string data based on a second part of the data representing the main central part of each frame image is arranged Second parallel digital image having a section No. is converted into a data, these first and second parallel digital video signal data,
Further, they are converted into first and second serial digital data, respectively, and sent out for transmission.

In this case, if necessary, word string data based on data representing a part other than the main central part of each frame image included in the digital data forming the telecine signal is described in claim 2. As in the case of the data transmission method according to the invention, the state of being arranged in the blanking section in the first and second parallel digital video signal data, or the case of the data transmission method according to the invention described in claim 3. As described above, in the effective line portion of the second parallel digital video signal data, the second of the data representing the main central portion of each frame image is
The word string data based on the part is placed so as to be superposed.

The serial transmission of each of the first and second serial digital data obtained by converting the digital data forming the telecine signal as described above is used for serial transmission according to HD SDI, for example. It can be appropriately performed by utilizing existing circuit components.

The data transmission method according to the invention described in any one of claims 11 to 19 in the claims of the present application or any one of claims 26 to 31. In the data transmission device according to the present invention, for example, the frame rate is 24H.
z, 25 Hz or 30 Hz, the number of lines per frame is 1556 lines, the number of data samples per line is 2048 samples, and the digital data forming a telecine signal with a quantization bit number of 10 bits. Of the first parallel digital video signal data having an effective line portion in which word string data based on the first portion of the data representing the main central portion of each frame image included therein and Second parallel digital video signal data having an effective line portion in which word string data based on the second portion of the data representing the main central portion are arranged, and each frame included in the digital data forming the above-mentioned telecine signal. Based on data representing parts other than the main central part of the image Data is converted into the third parallel digital video signal data having an effective line portion in which the data string data is arranged, and these first, second and third parallel digital video signal data are further converted into first, second and third parallel digital video signal data. Converted to second and third serial digital data respectively and sent out for transmission.

In this way, the first, second and third digital data forming the telecine signal are obtained by being converted.
It is assumed that the serial transmission of each of the serial digital data can be appropriately performed by using the existing circuit components used for the serial transmission according to HD SDI, for example.

[0028]

1 is a block diagram of a data transmission method according to an embodiment of the present invention, in which an example of a data transmission method according to the invention described in any one of claims 1 to 8 is implemented. 24 shows a data transmission / reception device including an example of the data transmission device according to the invention described in any one of claims 20 to 23 in the range.

In the data transmission / reception apparatus shown in FIG. 1, on the transmission side which constitutes an example of the data transmission apparatus according to the invention described in any one of claims 20 to 23 in the claims of the present application, , Digital data DTC forming a telecine signal is supplied to the data processing unit 11.

The digital data DTC has a frame rate of 24 Hz, 25 Hz or 30 Hz, a number of lines per frame of 1556 and a data sample number of 2048 samples per line, or a number of lines per frame. 108
The number of data samples per line is set to 0, and the number of data samples per line is set to 2560, and the number of quantization bits is set to 10 to form a telecine signal which is a progressive digital video signal in G, B, and R formats. It has a frame structure as shown in FIG.

FIG. 2 shows a specific configuration example of the data processing unit 11. A data processing unit 1 having the specific configuration shown in FIG.
1, the digital data DTC is stored in the memory unit 1
The frame synchronization signal SF, the vertical synchronization signal SV, and the horizontal synchronization signal SH related to the digital data DTC are supplied to the control signal forming unit 121.
In the memory unit 120, each frame of the digital data DTC is sequentially written and held, and each written frame is read in a predetermined mode. The write control signal QW and the read control signal QR required for writing and reading each frame of the digital data DTC in the memory unit 120 are the frame synchronization signal SF and the vertical synchronization signal in the control signal forming unit 121. Depending on the SV and the horizontal synchronization signal SH, for example,
Formed to have a frequency of 74.25 MHz,
It is supplied from the control signal forming unit 121 to the memory unit 120.

The digital data DTC is of the progressive type in which the number of lines per frame is 1556 and the number of data samples per line is 2048, and the number of quantization bits is 10 and the G, B, and R formats are used. When forming a telecine signal which is a digital video signal, one frame image represented by each frame of the digital data DTC sequentially written in the memory section 120 is 2048 from S0 to S2047, as shown in FIG. 15 from L1 to L1556, which are assumed to include sample data
It is formed by 56 lines.

When each frame of digital data DTC having the number of lines per frame set to 1556 and the number of data samples per line set to 2048 samples, which are sequentially written in the memory unit 120, is read out from the memory unit 120. Is handled by dividing one frame image shown in FIG. 3 into four areas of AC, BU, BL and CS. The area AC forms the central middle portion of the one-frame image shown in FIG.
The portion represented by the data of 1920 samples from S64 to S1983 in each of 1080 lines from 9 to L1318 (1920 samples x 1
080 line). The area BU forms the central upper portion adjacent to the area AC that forms the central middle portion of the one-frame image shown in FIG. 3, and the data of 1920 samples from S64 to S1983 in each of the 180 lines from L59 to L238. The area (1920 samples × 180 lines) represented by Also, the area BL forms a lower central portion adjacent to the area AC that forms the central middle portion of the one-frame image shown in FIG. 3, and 1920 samples from S64 to S1983 in each of 180 lines from L1319 to L1498. It is assumed to be a portion (1920 samples × 180 lines) represented by the above data.

The area AC forming the central middle portion, the area BU forming the central upper portion, and the area BL forming the central lower portion collectively form the main central portion of the one-frame image shown in FIG. Therefore, the main central portion is a portion (1920 samples × 1440 lines) represented by the data of 1920 samples from S64 to S1983 in each of 1440 lines from L59 to L1498. Furthermore, area C
S is the area AC, B of the one-frame image shown in FIG.
It is a peripheral edge portion that surrounds the main central portion composed of U and BL over the entire circumference.

The above-mentioned main central part, that is, the area AC,
In BU and BL, each of the 1440 lines is a 10-bit word G64 (G64) as shown in FIG.
xx is the data (G
Data). The same applies to Bxx and Rxx) to G
71, ..., and 10-bit words B64 to B7
1 ..., and 10-bit words R64 to R71,
The columns of ... Correspond to the 30-bit word sequence data arranged in parallel.

Further, in the peripheral portion surrounding the above-mentioned main central portion, that is, in the area CS, 1556 lines (excluding the portion included in the main central portion) are shown in FIG.
As shown in B of FIG. 10, the 10-bit word G0 (Gx is data (G data) forming the G data series of the sample Sx).
Is. The same applies to Bx, Rx) to G7, ... column, 10-bit word B0 to B7 ,.
A column of 0-bit words R0 to R7, ... Corresponds to 30-bit word column data arranged in parallel.

Under such a condition, in the data processing unit 11, the frequency of 74.25 MHz is stored in the memory unit 120.
For each frame of the digital data DTC sequentially written and held according to the write control signal QW, the reading from the memory unit 120 as shown in FIG. Data reading according to the control signal QR and formation of word string data based on the read data are performed.

First, the area AC shown in FIG. 3 and FIG.
From the 30-bit word string data as shown in A of FIG. 4 corresponding to each line in (1920 samples × 1080 lines), all G data G64 to G71 on the upper side of the partition by the thick solid line in A of FIG.・ ・ ・
And every other B data B64, B66, B68, B7
0, ..., and every other R data R64, R66, R
68, R70, ... Are read. Then, the read G data G64 to G71, ... And the B data B6
4, B66, B68, B70, ..., R data R6
4, R66, R68, R70, ...
The 20-bit word string data DACA as shown in FIG. 2 is formed, and it is supplied to the data switching / combining unit 122 as the read data DTCX. 20-bit word string data D
The number of data samples of ACA is 1920 samples.

Area AC shown in FIGS. 3 and 5
From the 30-bit word string data as shown in A of FIG. 4 corresponding to each line in (1920 samples × 1080 lines), every other B on the lower side of the partition by the thick solid line in A of FIG. Data B65, B67,
B69, B71, ..., and every other R data R
65, R67, R69, R71, ...
Then, the read B data B65, B67, B6
9, B71, ... And R data R65, R67, R6
, R71, ... form 20-bit word string data DACB as shown in A of FIG. 7 and use it as read data DTCX.
Supply to.

At the same time, as shown in A of FIG. 4 corresponding to each line in the area BU (1920 samples × 180 lines) and the area BL (1920 samples × 180 lines) shown in FIGS. 3 and 5, respectively. Thirty
From the bit word string data, all G data G64 to G7 on the upper side of the partition indicated by the thick solid line in FIG.
1, ... and every other B data B64, B66, B
68, B70, ... and every other R data R64,
Read out R66, R68, R70, .... Then, G data G64 to G71, ... Read from the 30-bit word string data corresponding to the area BU, and B.
Data B64, B66, B68, B70, ... And R
The data R64, R66, R68, R70, ... Form 20-bit word string data DBUA as shown in B of FIG. 7 and are read from the 30-bit word string data corresponding to the area BL. G data G64 to G71, ... and B data B64, B66,
B68, B70, ... And R data R64, R66,
R68, R70, ... Form 20-bit word string data DBLA as shown in B of FIG.
These are supplied to the data switching / combining unit 122 as the read data DTCX.

The area BU shown in FIGS. 3 and 5 is also used.
(1920 samples x 180 lines) and area BL
From the 30-bit word string data as shown in A of FIG. 4 corresponding to each line in each of (1920 samples × 180 lines), every other one that is on the lower side of the partition by the thick solid line in FIG. 4A. B data of B65 and B6
7 and B69, B71, ... And other R data R65, R67, R69, R71 ,. The B data B65, B67, B read from the 30-bit word string data corresponding to the area BU
69, B71, ... and R data R65, R67, R
69, R71, ... form 20-bit word string data DBUB as shown in FIG. 7C, and B data B65, B67 read from the 30-bit word string data corresponding to the area BL. , B69,
B71, ..., and R data R65, R67, R69,
.., form 20-bit word string data DBLB as shown in C of FIG. 7, and supply them to the data switching / combining unit 122 as read data DTCX.

Further, area C shown in FIGS. 3 and 5 is used.
From the 30-bit word string data as shown in B of FIG. 4 corresponding to each line starting from the line L1 in S, all G data G0 to G7, ... And all B data B0 to B7, ...・ And all R data R0-R
Read out 7, ... Then, the read G data G0 to G7, ... And the B data B0 to B7 ,.
, And R data R0 to R7, ... Form 20-bit word string data DCS as shown in FIG. 8 and supply it to the data switching / combining unit 122 as read data DTCX.

The data switching / combining section 122 includes a SAV / E
A timing reference code SAV consisting of a sequence of 10-bit words from the AV data generator 123, a timing reference code EAV consisting of a sequence of 10-bit words, and a line number data DLN consisting of a sequence of 10-bit words from the line number data generator 124. , And the error detection code data DRC which is a series of 10-bit words from the error detection code data generation unit 125 is also supplied.

The SAV / EAV data generator 123 includes
The control signal forming unit 121 supplies the timing control signal CSE formed according to the frame synchronization signal SF, the vertical synchronization signal SV, and the horizontal synchronization signal SH. Thereby, the SAV / EAV data generator 123 generates the timing reference codes SAV and EAV at the timing indicated by the timing control signal CSE, and supplies them to the data switching / combining unit 122.

The line number data generator 124 is supplied from the control signal generator 121 with a timing control signal CLN formed in response to the frame synchronization signal SF, the vertical synchronization signal SV and the horizontal synchronization signal SH. As a result, the line number data generator 124 causes the timing control signal C
The line number data DLN is generated at the timing designated by the LN and supplied to the data switching / combining unit 122.

The error detection code data generating section 125 is supplied from the control signal forming section 121 with a timing control signal CRC formed according to the frame synchronizing signal SF, the vertical synchronizing signal SV and the horizontal synchronizing signal SH. Thereby,
The error detection code data generation unit 125 generates the error detection code data DRC at the timing instructed by the timing control signal CRC, and outputs the error detection code data DRC.
22.

Further, the control signal forming section 121 has the frame synchronizing signal SF, the vertical synchronizing signal SV and the horizontal synchronizing signal S.
A data switching control signal CDS corresponding to H is formed and supplied to the data switching / combining section 122.

The data switching / combining unit 122 reads the read data DTCX, SAV / EA from the memory unit 120 according to the data switching control signal CDS from the control signal forming unit 121.
Timing reference code SA from V data generator 123
V and EAV, the line number data DLN from the line number data generating unit 124, and the error detection code data DRC from the error detection code data generation unit 125 are switched and combined to generate word string data forming an HD digital video signal. Form. The formation of the word string data forming the HD digital video signal by the data switching / combining unit 122 is performed as follows.

First, the data switching / combining unit 122 has a 20-bit configuration in which two of the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data portion, and the timing reference code SAV are arranged in parallel. The data is sequentially arranged as the data to be formed, and 192 bits of 20-bit word string data DACA are successively added.
0 samples are arranged, and word string data forming one line of the HD digital video signal is formed as the link A,
The operation for forming one frame is repeated by adding 1080 lines of word string data forming one line, which is the link A, and adding a space for a vertical blanking portion. At this time, in connecting each line that is sequentially formed by 1080 lines, the odd-numbered lines and the even-numbered lines are distributed, and the odd-numbered lines are continuous for 540 lines, and the vertical blanking portion The even-numbered lines are made to be continuous for 540 lines through the space that becomes so that a segmented frame structure is obtained.

In the above-mentioned word string data which constitutes one line and is referred to as link A, the progressive H which is assumed to have the data format shown in FIG.
As with one line of D signal, the timing reference code E
AV, line number data DLN, error detection code data D
An array of RC, auxiliary data section and timing reference code SAV is arranged in the horizontal blanking section, and 20-bit word string data DACA is arranged in the effective line section. The number of data samples in the effective line portion is 1920.

The data switching / combining section 122 has a 20-bit configuration in which two of the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data section and the timing reference code SAV are arranged in parallel. The data is sequentially arranged to form a 20-bit word string data DACB 192.
An operation of arranging 0 samples to form word string data forming one line of the HD digital video signal and connecting the word string data forming one line for 1080/2 = 540 lines, and a timing reference code EAV , The line number data DLN, the error detection code data DRC, the auxiliary data section, and the timing reference code SAV are sequentially arranged so that two of them are arranged in parallel to form a 20-bit configuration, followed by a 20-bit word string. The data DBUA is arranged for 1920 samples to form the word string data forming one line of the HD digital video signal, and the word string data forming one line is 18
Operation for connecting 0 lines and timing reference code EA
V, line number data DLN, error detection code data DR
C, the auxiliary data section, and the timing reference code SAV are sequentially arranged so that two of them are arranged in parallel to form a 20-bit configuration, and subsequently, 20-bit word string data DBUB is arranged for 1920 samples, An operation of forming word string data forming one line of the HD digital video signal and connecting the word string data forming one line for 180/2 = 90 lines, timing reference code EAV, line number data DLN, error Each of the detection code data DRC, the auxiliary data portion, and the timing reference code SAV is sequentially arranged so that two of them are arranged in parallel to form a 20-bit configuration, and subsequently, 20-bit word string data DBLA is provided 192.
An operation of arranging 0 samples to form word line data forming one line of the HD digital video signal and connecting the word line data forming one line for 180 lines, timing reference code EAV, line number data D
Each of the LN, the error detection code data DRC, the auxiliary data section, and the timing reference code SAV is sequentially arranged so that two of them are arranged in parallel to form a 20-bit configuration, and subsequently, 20-bit word string data DBL.
By arranging B for 1920 samples, the word string data forming one line of the HD digital video signal is formed, and the word string data forming one line is 180/2 = 90.
The operation of connecting the lines is performed, and 540 lines, 180 lines, 90 lines, 1 formed in this way
An operation of forming one frame by adding all the word string data for one line of 1080 lines and one line of 1080 lines for one line as a link B, and adding a space for a vertical blanking part to it repeat.

The word sequence data for one line, which is the link B in the above description, also has the progressive H format which takes the data format shown in FIG.
As with one line of D signal, the timing reference code E
AV, line number data DLN, error detection code data D
An array of RC, auxiliary data section and timing reference code SAV is arranged in the horizontal blanking section, and 20-bit word string data DACB, DBUA, DBUB, DBLA and DBLB are arranged in the effective line section. The effective line part is
The number of data samples will be 1920.

Further, the data switching / combining section 122 is 20
The bit word string data DCS is arranged in the auxiliary data part of each of the word string data forming one line which is the link A and the word string data forming one line which is the link B.

As a result, in the data switching / combining unit 122, the word string data forming one line is formed as a link A which has the auxiliary data section in which the 20-bit word string data DCS is arranged. 20-bit word string data DPA (20) forming the HD digital video signal and 20-bit word string data DCS
20-bit word string data DPB (20) forming an HD digital video signal formed by a series of word string data forming one line, which is a link B having an auxiliary data section in which The word transmission rate is obtained as 74.25 MBps, and these are transmitted as output data from the data processing unit 11.

20-bit word string data DPA (20)
As described above, the HD digital video signal formed by the video signal has a segmented frame structure, the number of effective lines per field is 1080/2 = 540, and the number of effective data samples per line is 192.
Set to 0 sample. Also, 20-bit word string data D
The HD digital video signal formed by the PB (20) has 1080 effective lines per frame and 1920 effective data samples per line.

On the other hand, the digital data DTC has the number of lines per frame of 1080, the number of data samples per line of 2560, and the progressive bit number of G, B, and R formats with the quantization bit number of 10 bits. When it is a digital video signal of the system that forms a telecine signal, the memory unit 12
As shown in FIG. 9, one frame image represented by each frame of digital data DTC sequentially written in 0 is supposed to include data of 2560 samples from S0 to S2559, and 1080 from L1 to L1080. Formed by lines.

When each frame of digital data DTC in which the number of lines per frame is 1080 lines and the number of data samples per line is 2560 samples, which are sequentially written in the memory unit 120, is read from the memory unit 120. , The one-frame image shown in FIG. 9 is divided into three areas of CC, LCS, and RSC for handling. The area CC forms the main central portion of the one-frame image shown in FIG. 9, and is S3 in each of the 1080 lines L1 to L1080.
The portion represented by the 1920 sample data from 20 to S2239 (1920 sample x 1080
Line). Area LCS is 1 shown in FIG.
The left side portion adjacent to the area CC forming the main center portion of the frame image is formed, and 1080 from L1 to L1080
320 from S0 to S319 in each of the lines
The part represented by the sample data (1080
Sample x 320 lines). Also, the area RC
S is the right side portion adjacent to the area CC forming the main center portion of the one-frame image shown in FIG.
S22 in each of the 1080 lines up to 1080
It is a portion (1080 samples × 320 lines) represented by the data of 320 samples from 40 to S2559.

In the area CC forming the main central portion described above, each of the 1080 lines has a 10-bit word G320 (Gxxx is the data forming the G data series of the sample Sxxx (G data) as shown in FIG. )
Is. The same applies to Bxxx and Rxxx) to G32.
Columns of 7, ... And 10-bit words B320 to B32
Columns of 7, ... And 10-bit words R320 to R32
The columns of 7, ... Correspond to 30-bit word column data arranged in parallel. Further, in the area LCS forming the left side portion, each of the 1080 lines has a 10-bit word G as shown in FIG. 10B.
Columns of 0 to G7, ... and 10 bit words B0 to B
A column of 7, ..., And 10-bit words R0 to R7, ...
The columns of and correspond to the 30-bit word sequence data arranged in parallel. Further, in the area RCS forming the right side portion, each of 1080 lines has a 10-bit word G224 as shown in FIG.
A sequence of 0 to G2247, ... and a 10-bit word B2
The columns of 240 to B2247, ... And the columns of 10-bit words R2240 to R2247 ,.

Under such a condition, in the data processing unit 11, the frequency of 74.25 MHz is stored in the memory unit 120.
For each frame of the digital data DTC sequentially written and held according to the write control signal QW, the reading from the memory unit 120 as shown in FIG. 11 with the frequency of 74.25 MHz is performed as follows. Data reading according to the control signal QR and formation of word string data based on the read data are performed.

First, area C shown in FIGS. 9 and 11.
From the 30-bit word string data as shown in A of FIG. 10 corresponding to each line in C (1920 samples × 1080 lines), all the G data G320 to be above the partition by the thick solid line in A of FIG. G32
7, every other B data B320, B32
2, B324, B326, ... And every other R data R320, R322, R324, R326 ,. Then, the read G data G320 to
G327, ..., B320, B322, B324,
B326, ... and R data R320, R322, R
, 324, R326, ... form 20-bit word string data DCCA as shown in FIG.
As the read data DTCX, the data switching / synthesizing unit 1
22. The number of data samples of the 20-bit word string data DCCA is 1920 samples.

Area C shown in FIG. 9 and FIG.
From the 30-bit word string data as shown in A of FIG. 10 corresponding to each line in C (1920 samples × 1080 lines), every other one of the lower side of the partition by the thick solid line in A of FIG. B data B321,
B323, B325, B327, ... and the other R data R321, R323, R325, R32
Read out 7, ... Then, the read B data B321, B323, B325, B327, ...
And R data R321, R323, R325, R32
, ..., and 2 as shown in A of FIG.
The 0-bit word string data DCCB is formed and is supplied to the data switching / combining unit 122 as the read data DTCX.

At the same time, 3 as shown in B of FIG. 10 corresponding to each line in the area LCS (320 samples × 1080 lines) shown in FIGS. 9 and 11.
From 0 bit word string data, all G data G0 to G
7 ..., all B data B0 to B7, ...
All the R data R0 to R7, ... Are read. Then, the read G data G0 to G7, ..., B data B0 to B7, ..., R data R0 to R7 ,.
・ By forming the 20-bit word string data DLSB as shown in B of FIG.
It is supplied to the data switching / combining unit 122 as TCX. Further, the area RCS (320 shown in FIGS. 9 and 11 is used.
All the G data G2240 to G2247, ... from the 30-bit word string data as shown in C of FIG. 10 corresponding to each line in the sample × 1080 lines).
・ And all the B data B2240 to B2247, ...
And all the R data R2240 to R2247, ... Are read. Then, the read G data G2240
To G2247, ..., and B data B2240 to B22
47, ..., R data R2240 to R2247, ...
. And form 20-bit word string data DRSB as shown in FIG. 13C and supply it to the data switching / combining unit 122 as read data DTCX.

Also in this case, the data switching / synthesizing unit 122 has a timing reference code SAV formed by a sequence of 10-bit words from the SAV / EAV data generation unit 123 and a timing reference code EAV formed by a sequence of 10-bit words, The line number data DLN consisting of a sequence of 10-bit words from the line number data generator 124 and the error detection code data DRC consisting of a sequence of 10 bit words from the error detection code data generator 125 are supplied, and further control is performed. The data switching control signal CDS from the signal forming unit 121 is supplied. Then, the data switching / combining unit 122, according to the data switching control signal CDS from the control signal forming unit 121, reads the read data DTCX from the memory unit 120, the timing reference codes SAV and EAV from the SAV / EAV data generating unit 123, and the line number. The line number data DLN from the data generation unit 124 and the error detection code data DRC from the error detection code data generation unit 125 are switched and combined to form word string data forming an HD digital video signal. The formation of the word string data forming the HD digital video signal by the data switching / combining unit 122 is performed as follows.

First, the data switching / combining section 122 has a 20-bit configuration in which two of the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data section and the timing reference code SAV are arranged in parallel. The data is sequentially arranged as the data to be formed, and 20-bit word string data DCCA is successively added to them.
0 samples are arranged, and word string data forming one line of the HD digital video signal is formed as the link A,
The operation for forming one frame is repeated by adding 1080 lines of word string data forming one line, which is the link A, and adding a space for a vertical blanking portion. At this time, in connecting each line that is sequentially formed by 1080 lines, the odd-numbered lines and the even-numbered lines are distributed, and the odd-numbered lines are continuous for 540 lines, and the vertical blanking portion The even-numbered lines are made to be continuous for 540 lines through the space that becomes so that a segmented frame structure is obtained.

In the above-described word string data forming one line, which is referred to as the link A, the progressive H which is assumed to have the data format shown in FIG.
As with one line of D signal, the timing reference code E
AV, line number data DLN, error detection code data D
An array of RC, auxiliary data section and timing reference code SAV is arranged in the horizontal blanking section, and 20-bit word string data DCCA is arranged in the effective line section. The number of data samples in the effective line portion is 1920.

The data switching / combining section 122 has a 20-bit configuration in which two of the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data section and the timing reference code SAV are arranged in parallel. The data is sequentially arranged as the data to be formed, and 20-bit word string data DCCB is successively added to them 192
An operation of arranging 0 samples to form word string data forming one line of the HD digital video signal and connecting the word string data forming one line for 1080/2 = 540 lines, and a timing reference code EAV , The line number data DLN, the error detection code data DRC, the auxiliary data section, and the timing reference code SAV are sequentially arranged so that two of them are arranged in parallel to form a 20-bit configuration, followed by a 20-bit word string. The data DLSBs are arranged for 1920 samples to form the word string data forming one line of the HD digital video signal, and the word string data forming one line is 10
80 × 3/2 × 320/1920 = 270 lines of continuous operation, two of the timing reference code EAV, line number data DLN, error detection code data DRC, auxiliary data section and timing reference code SAV are arranged in parallel. And sequentially arranging them as 20-bit configuration, and arranging 1920-samples of 20-bit word string data DRSB following them to form word string data forming one line of the HD digital video signal. 1080 word string data for one line
× 3/2 × 320/1920 = 270 lines of continuous operation, and 540 lines formed in this way,
270 lines and 270 lines, a total of 1,080 lines of word line data are all linked B
Then, the operation of forming a frame for one frame by adding a space to serve as a vertical blanking portion is repeated.

In the above-mentioned word string data which forms one line and is referred to as the link B, the progressive H which takes the data format shown in FIG.
As with one line of D signal, the timing reference code E
AV, line number data DLN, error detection code data D
An array of RC, auxiliary data section and timing reference code SAV is arranged in the horizontal blanking section, and 20-bit word string data DCCB, DLSB and DRSB are arranged in the effective line section. The number of data samples in the effective line is 1
It will be 920 samples.

As a result, in the data switching / combining section 122, 20-bit word string data DPA (20) forming an HD digital video signal formed by a series of word string data forming one line which is the link A, The 20-bit word string data DPB (20) forming the HD digital video signal formed by the string of word string data forming one line, which is the link B, is obtained as a word transmission rate of 74.25 MBps. , And these are sent as output data from the data processing unit 11.

Even in such a case, the HD digital video signal formed by the 20-bit word string data DPA (20) has the segmented frame structure as described above, and the number of effective lines per field is 10
With 80/2 = 540 lines, the number of valid data samples per line is 1920 samples. Also, 20
The HD digital video signal formed by the bit word string data DPB (20) has 1080 effective lines per frame and 1920 effective data samples per line.

The 20-bit word string data DPA (20) sent from the data processing unit 11 and having a word transmission rate of 74.25 MBps is supplied to the data insertion unit 12. In the data insertion unit 12, the auxiliary data DAA including the channel identification data as necessary is inserted into the 20-bit word string data DPA (20), and the 20-bit word string data DPA 'in which the auxiliary data DAA is inserted is inserted.
(20) is formed. 2 obtained from the data insertion unit 12
The 0-bit word string data DPA ′ (20) is supplied to the parallel / serial (P / S) conversion unit 13.

In the P / S converter 13, the 20-bit word string data DPA '(20) is subjected to P / S conversion, and the bit transmission rate based on the 20-bit word string data DPA' (20) is set to 74. 0.25 MBps × 20 = 1.
Forming serial data DSA of 485 Gbps,
The serial data DSA is supplied to the electro-optical conversion unit (E / O conversion unit) 14.

In the E / O conversion section 14, the serial data DSA is subjected to an electro-optical conversion process to obtain the serial data DSA.
For example, an optical signal OSA having a center wavelength of about 1.3 μm based on A and a bit transmission rate of 1.485 Gbp
s, and send it out as a transmission signal.

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

In the P / S converter 16, the 20-bit word string data DPB '(20) is subjected to P / S conversion, and the bit transmission rate based on the 20-bit word string data DPB' (20) is set to 74. 0.25 MBps × 20 = 1.
Create serial data DSB of 485 Gbps,
The serial data DSB is supplied to the E / O converter 17.

In the E / O conversion section 17, the serial data DSB is subjected to an electro-optical conversion process to obtain 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 send it out as a transmission signal.

The optical signal OSA, which is a transmission signal sent from the E / O converter 14, is guided to the optical fiber transmission line 19 through the optical connector 18, and is transmitted to the reception side through the optical fiber transmission line 19. In addition, the E / O converter 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 transmitted to the receiving side through the optical fiber transmission line 21.
Each of the optical fiber transmission lines 19 and 21 is formed by using, for example, a silica-based single mode fiber (quartz-based SMF).

Under these circumstances, the E / O converter 14 and the optical connector 18, and the E / O converter 17 and the optical connector 20 are connected to the serial data DSA and the serial data DSA obtained from the P / S converters 13 and 16, respectively. It forms a data sending unit for sending the DSB to be transmitted.

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

In the O / E converter 23, the center wavelength is approximately 1.3 μm and the bit transmission rate is 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 1.485 Gb.
Reproduce the serial data DSA at ps. And
The reproduced serial data DSA is supplied to the serial / parallel (S / P) conversion unit 26.

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

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

In the S / P conversion section 30, the serial data DSB is S / P converted to obtain the serial data DSB.
The 20-bit word string data DPB ′ (20) based on B and 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, 20-bit word string data DPB '
The auxiliary data DAB is separated from (20), and the 20-bit word string data DPB (20) and the auxiliary data DAB are separated.
Are transmitted individually, and 20-bit word string data DPB
(20) is supplied to the data time difference absorbing section 29.

In the data time difference absorber 29, the 20-bit word string data DPA from the data separator 28 is used.
The mutual time difference generated between (20) and the 20-bit word string data DPB (20) from the data separation unit 31 is absorbed, and the word transmission rate based on the 20-bit word string data DPA (20) is set to 74.25 MBps. 20-bit word string data DPAQ (20) and 20-bit word string data D having a word transmission rate of 74.25 MBps based on the 20-bit word string data DPB (20)
The PBQ (20) and the PBQ (20) are transmitted as being aimed to be maintained in a state where there is substantially no mutual time difference.

20 obtained from the data time difference absorbing section 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 section 32,
For the 20-bit word string data DPAQ (20) and the 20-bit word string data DPBQ (20), the data processing unit 11 on the transmission side digital data DT.
Data reproduction processing that is the reverse of the data conversion processing performed on C is performed, and 20-bit word string data DPAQ (20) and 2
The digital data DTC based on the 0-bit word string data DPBQ (20) is reproduced. The digital data DTC is a progressive digital format in which the number of lines per frame is 1556 and the number of data samples per line is 2048, and the number of quantization bits is 10 and the G, B, and R formats are used. Video signal or progressive digital video signal in G, B, R format with 10 quantization bits and 2560 samples per line and 2560 data samples per line It is said to form a telecine signal.

In the above description, the 20-bit word string data DPA (20) has a segmented frame structure, and the number of effective lines per field is 540 and the number of effective data samples per line is 192.
Since it forms an HD digital video signal of 0 sample, it is possible to perform recording and reproduction by, for example, a current magnetic recording / reproducing apparatus for HD digital video signals (referred to as VTR for HD). Therefore, the current HD VTR can be used to check and edit the content of the 20-bit word string data DPA (20), and further, the current HD VTR and video monitor can be used. As a result, it is possible to obtain a reproduced image based on the 20-bit word string data DPA (20), which makes it possible to perform confirmation work or the like using current equipment when handling data that forms a telecine signal. It is extremely convenient.

FIG. 14 shows an example of the data transmission method according to the invention described in any one of claims 1 to 7 and claim 9 in the claims of the present application.
Claims 20 to 2 in the scope of the claims of the present application
25 shows a part of a data transmission / reception device including an example of a data transmission device according to the invention described in any one of claims 2 to 24.

The data transmission / reception device shown in FIG. 14 has many parts configured similarly to the data transmission / reception device shown in FIG. 1. In FIG. 14, the data transmission / reception device shown in FIG. Only the parts that are different from and related to are shown.

In the data transmission / reception apparatus shown in FIG. 14 in place of the E / O conversion section 17 and the O / E conversion section 25 provided in the data transmission / reception apparatus shown in FIG. The O / E converter 35 and the 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 transmission / reception device shown in FIG. 1, an optical connector 37, an optical fiber transmission line 38, and an optical connector. It is equipped with 39. Optical fiber transmission line 38
Is formed by using, for example, a silica-based SMF.

In the data transmission / reception device shown in FIG. 14, the serial data DSA whose bit transmission rate from the P / S converter 13 is 1.485 Gbps.
Is supplied to the E / O conversion unit 14, and serial data DSB from the P / S conversion unit 16 having a bit transmission rate of 1.485 Gbps is supplied to the E / O conversion unit 35. In the E / O converter 14, the serial data D
For example, an optical signal OSA having a center wavelength of about 1.3 μm based on SA and a bit transmission rate of 1.485 Gb
It is formed as ps and is guided to the multiplexing unit 36. Further, in the E / O conversion unit 35, the serial data DSB having the bit transmission rate of 1.485 Gbps from the P / S conversion unit 16 is subjected to electro-optical conversion processing, and the center wavelength based on the serial data DSB is set to, for example, Approximately 1.
An optical signal OSB of 55 μm is formed as a bit transmission rate of 1.485 Gbps, and the optical signal OSB is guided to the multiplexing unit 36.

The multiplexing section 36 is formed of, for example, a fiber type wavelength division multiplexer (fiber type WDM coupler). In the multiplexing unit 36, the center wavelength is approximately 1.
Optical signal OSA of 3 μm and center wavelength of about 1.55 μm
The optical signal OSB is multiplexed and multiplexed to form a multiplexed optical signal OSZ, which is transmitted as a transmission signal.

The multiplexed optical signal OSZ, which is the transmission signal sent from the multiplexing unit 36, is guided to the optical fiber transmission line 38 through the optical connector 37, and is transmitted to the reception side through the optical fiber transmission line 38. Under such circumstances, the E / O conversion units 14 and 35, the multiplexing unit 36, and the optical connector 37 are
It forms a data transmission unit for transmitting the serial data DSA and DSB obtained from the / S conversion units 13 and 16, respectively.

On the receiving side, the optical fiber transmission line 3
The multiplexed optical signal OSZ transmitted through the optical fiber 8 is guided to the demultiplexing unit 40 through the optical connector 39. The demultiplexing unit 40 is
For example, a fiber type WDM coupler is used as the demultiplexing means. Then, in the demultiplexing unit 40, the multiplexed optical signal OSZ is demultiplexed into a component having a center wavelength of about 1.3 μm and a component having a center wavelength of about 1.55 μm to set the bit transmission rate to 1 The optical signal OSA has a center wavelength of about 1.3 μm and a bit transmission rate of 1.485 Gbps and a center wavelength of about 1.45 Gbps.
The optical signal OSB of 55 μm is reproduced.

Optical signal OSA reproduced by the demultiplexing unit 40
And OSB are guided to the O / E converters 23 and 41, respectively. In the O / E converter 23, the center wavelength is approximately 1.3 μm and the bit transmission rate is 1.485 Gbp.
The optical signal OSA to be s is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OSA is 1.485 Gbp.
The serial data DSA designated as s is reproduced. Then, the reproduced serial data DSA is supplied to the S / P conversion unit 26. In the O / E converter 41, the center wavelength is set to about 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 so that the bit transmission rate based on the optical signal OSB is 1.4.
The serial data DSB of 85 Gbps is reproduced.
Then, the reproduced serial data DSB is supplied to the S / P conversion unit 30. Other operations are similar to those of the data transmission / reception device shown in FIG.

FIG. 15 shows an example of the data transmission method according to the invention described in any one of claims 1 to 7 and claim 10 in the claims of the present application. 27 shows a portion of a data transmission / reception device including an example of the data transmission device according to the invention described in any one of claims 20 to 22 and 25 in the range of FIG.

The data transmission / reception device shown in FIG. 15 also has many parts configured similarly to the data transmission / reception device shown in FIG. 1, and FIG. 15 shows the data transmission / reception device shown in FIG. Only the parts that are different from and related to are shown.

In the data transmission / reception device shown in FIG. 15, 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.
Instead of 3 and 25, an E / O converter 43 and an O / E converter 48 are provided. Furthermore, the optical connectors 18 and 2 provided in the data transmission / reception apparatus shown in FIG.
0, optical fiber transmission lines 19 and 21, and optical connectors 22 and 24 are replaced by an optical connector 45, an optical fiber transmission line 46, and an optical connector 47. The optical fiber transmission line 46 is formed by using, for example, a silica-based SMF.

In the data transmission / reception apparatus shown in the portion of FIG. 15, the serial data DSA whose bit transmission rate from the P / S conversion unit 13 is 1.485 Gbps.
And the bit transmission rate from the P / S converter 16 is 1.48.
The serial data DSB of 5 Gbps is supplied to the bit multiplexing unit 42. In the bit multiplexer 42,
One bit is alternately taken out from each of the serial data DSA and DSB and sequentially arranged, and the bit multiplex combining process is performed on the serial data DSA and DSB, and the bit transmission rate is 1.485 Gbps × 2 = 2.
Composite serial data DZV of 97 Gbps is formed.

The composite serial data DZV obtained from the bit multiplexer 42 is supplied to the E / O converter 43. E
In the / O converter 43, the composite serial data DZV
Based on the above, an optical signal OZV having a center wavelength of, for example, approximately 1.3 μm is formed as a signal having a bit transmission rate of 2.97 Gbps, and is transmitted as a transmission signal.

The optical signal OZV, which is the transmission signal sent from the E / O converter 43, is guided to the optical fiber transmission line 46 through the optical connector 45 and transmitted to the receiving side through the optical fiber transmission line 46. Under these circumstances, the bit multiplexer 42, the E / O converter 43 and the optical connector 45 are
It forms a data transmission unit for transmitting the serial data DSA and DSB obtained from the / S conversion units 13 and 16, respectively.

On the receiving side, the optical fiber transmission line 4
The optical signal OZV transmitted through the optical connector 6
Through the O / E conversion unit 48. In the O / E conversion unit 48, the optical signal OZV having a center wavelength of approximately 1.3 μm and a bit transmission rate of 2.97 Gbps is subjected to photoelectric conversion processing to obtain a bit transmission rate based on the optical signal OZV. The composite serial data DZV of 2.97 Gbps is reproduced. Then, the reproduced composite serial data DZV is supplied to the bit separation unit 49.

The bit separating section 49 takes out one bit at a time from the composite serial data DZV and forms an operation of forming every other two bit groups, and performs a bit separating process on the composite serial data DZV. . Then, the channel is identified by using the channel identification data included in the composite serial data DZV, and the respective bit transmission rates based on the composite serial data DZV are 2.
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 conversion unit 30. Other operations are similar to those of the data transmission / reception device shown in FIG.

FIG. 16 is a diagram showing the scope of claims of the present application in which an example of the data transmission method according to the invention described in any one of claims 11 to 15 is implemented. 28 shows a data transmission / reception device including an example of the data transmission device according to the invention described in claim 26 or claim 27.

In the data transmission / reception device shown in FIG. 16, a telecine signal is transmitted on the transmission side which constitutes an example of the data transmission device according to the invention described in claim 26 or claim 27 in the claims of the present application. The generated digital data DTC is supplied to the data processing unit 51.

The digital data DTC has a frame rate of 24 Hz, 25 Hz or 30 Hz, the number of lines per frame is 1556, the number of data samples per line is 2048, and the number of quantization bits is 10 bits. , B, and R, which forms a telecine signal which is a progressive digital video signal, and has a frame structure as shown in FIG.

FIG. 17 shows an example of a specific configuration of the data processing section 51. The example of the specific configuration shown in FIG. 17 has the same configuration as the example of the specific configuration of the data processing unit 11 shown in FIG. Therefore, the data processing unit 11 shown in FIG.
The parts corresponding to the respective parts in the example of the specific configuration are shown with the same reference numerals as those in FIG. 2, and duplicate description thereof will be omitted.

In the example of the concrete configuration shown in FIG. 17, the memory section 120 in the data switching / combining section 122 is shown.
Read data from DTCX, timing reference codes SAV and EA from SAV / EAV data generator 123
V, the line number data DLN from the line number data generation unit 124, and the switching and combining method for the error detection code data DRC from the error detection code data generation unit 125 are described in detail in the data processing unit 11 shown in FIG. The configuration is different from the example.

The data switching / combining section 122 in the example of the specific configuration shown in FIG. 17 is the word string data forming one line of the HD digital video signal to be the link A and the HD digital video signal to be the link B. 2 is formed in the same manner as the data switching / combining unit 122 in the example of the specific configuration of the data processing unit 11 shown in FIG. 2, and one frame of each of them is formed. Although sequentially obtained, based on the 30-bit word string data as shown in B of FIG. 4 corresponding to each line in the area CS shown in FIGS. 3 and 5,
The handling of the 20-bit word string data DSC obtained as shown in FIGS. 8 and 18 is different from the data switching / combining unit 122 in the example of the specific configuration of the data processing unit 11 shown in FIG.

That is, in the data switching / combining section 122 in the example of the specific configuration shown in FIG. 17, the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data section and the timing reference code SAV are included. Each of them is arranged in parallel so that two of them are arranged in parallel to form a 20-bit structure, and 20-bit word string data DCS as shown in FIG. The word string data forming a line is formed as a link C, the word string data forming one line is connected for 1080 lines, and a space to be a vertical blanking portion is added to it to add one frame worth. The forming operation is repeated.

Also in the word string data forming one line which is the link C formed in this way, FIG.
As in the case of one line of the progressive HD signal which is assumed to take the data format shown in FIG. 3, the timing reference code EAV, the line number data DLN, the error detection code data DRC, the auxiliary data section and the timing reference code SAV are arranged horizontally. Located in the blanking section, 20
The bit word string data DCS is arranged in the effective line portion.

As a result, in the data switching / combining section 122 in the example of the concrete configuration shown in FIG.
20-bit word string data DPA (20) forming an HD digital video signal formed by a series of word string data forming one line
A 20-bit word string data DPB (20) forming an HD digital video signal formed by a series of word string data forming a line, and an HD formed by a series of word line data forming a line C, which is a link C. 20-bit word string data DPC forming a digital video signal
(20) has a word transmission rate of 74.25 MB
ps, which are obtained by the data processing unit 5
It is sent as output data from 1.

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

In the P / S converter 53, the 20-bit word string data DPA '(20) is subjected to P / S conversion, and the bit transmission rate based on the 20-bit word string data DPA' (20) is set to 74. 0.25 MBps × 20 = 1.
Forming serial data DSA of 485 Gbps,
The serial data DSA is supplied to the E / O converter 54.

In the E / O conversion section 54, the serial data DSA is subjected to the electro-optical conversion process to obtain the serial data DSA.
For example, an optical signal OSA having a center wavelength of about 1.3 μm based on A and a bit transmission rate of 1.485 Gbp
s, and send it out as a transmission signal.

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

In the P / S converter 56, the 20-bit word string data DPB '(20) is subjected to P / S conversion, and the bit transmission rate based on the 20-bit word string data DPB' (20) is set to 74. 0.25 MBps × 20 = 1.
Create serial data DSB of 485 Gbps,
The serial data DSB is supplied to the E / O converter 57.

In the E / O converter 57, the serial data DSB is subjected to electro-optical conversion processing, and the serial data DSB is converted.
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 send it out as a transmission signal.

Furthermore, the 20-bit word string data DPC (20) sent from the data processing unit 51 and having a word transmission rate of 74.25 MBps is stored in the data insertion unit 58.
Is supplied to. In the data inserting unit 58, the auxiliary data DAC including the channel identification data as necessary is inserted into the 20-bit word string data DPC (20), and the auxiliary data DAC is inserted into the 20-bit word string data DPC ′. (20) is formed. The 20-bit word string data DPC ′ (20) obtained from the data insertion unit 58 is
It is supplied to the P / S conversion unit 59.

In the P / S converter 59, the 20-bit word string data DPC '(20) is subjected to P / S conversion, and the bit transmission rate based on the 20-bit word string data DPC' (20) is set to 74. 0.25 MBps × 20 = 1.
Create serial data DSC of 485 Gbps,
The serial data DSC is supplied to the E / O converter 60.

In the E / O conversion unit 60, the serial data DSC is subjected to the electro-optical conversion process to obtain the serial data DSC.
For example, an optical signal OSC having a center wavelength of about 1.3 μm based on C and a bit transmission rate of 1.485 Gbp
s, and send it out as a transmission signal.

The optical signal OSA, which is the transmission signal sent from the E / O converter 54, is guided to the optical fiber transmission line 62 through the optical connector 61 and is transmitted to the receiving side through the optical fiber transmission line 62. In addition, the E / O converter 57
The optical signal OSB, which is a transmission signal transmitted from the optical fiber, is guided to the optical fiber transmission path 64 through the optical connector 63 and transmitted to the reception side through the optical fiber transmission path 64.
Further, the optical signal OSC, which is a transmission signal sent from the E / O conversion unit 60, is guided to the optical fiber transmission line 66 through the optical connector 65 and is transmitted to the reception side through the optical fiber transmission line 66. Optical fiber transmission line 62,6
Each of 4 and 66 is formed by using, for example, a silica-based SMF.

Under these circumstances, the E / O converter 54 and the optical connector 61, and the E / O converter 57 and the optical connector 63.
And the E / O converter 60 and the optical connector 65 are P / S
It forms a data transmission unit for transmitting serial data DSA, DSB and DSC obtained from the conversion units 53, 56 and 59, respectively.

On the receiving side, the optical fiber transmission line 6
The optical signal OSA transmitted through the optical connector 67
Through the O / E conversion unit 68. In addition, the optical signal OSB transmitted through the optical fiber transmission line 64 is
It is guided to the O / E converter 70 through the optical connector 69. Further, the optical signal OSC transmitted through the optical fiber transmission line 66 is guided to the O / E conversion section 72 through the optical connector 71.

In the O / E converter 68, the center wavelength is approximately 1.3 μm and the bit transmission rate is 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 1.485 Gb.
Reproduce the serial data DSA at ps. And
The reproduced serial data DSA is sent to the S / P conversion unit 73.
Is supplied to. The S / P converter 73 performs S / P conversion on the serial data DSA to generate the serial data D
Based on SA, word transmission rate is 74.25MBps
The 20-bit word string data DPA ′ (20) is reproduced and supplied to the data time difference absorbing unit 74.

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

Further, in the O / E converter 72, the center wavelength is set to about 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 so that the bit transmission rate based on the optical signal OSC is 1.4.
The serial data DSC of 85 Gbps is reproduced.
Then, the reproduced serial data DSC is supplied to the S / P conversion unit 76. In the S / P converter 76,
S / P conversion is performed on the serial data DSC, and the word transmission rate based on the serial data DSC is 74.25.
20-bit word string data DPC ′ (2
0) is reproduced and is supplied to the data time difference absorbing section 74.

In the data time difference absorbing section 74, S /
20-bit word string data DPA 'from the P conversion unit 73
(20) and 20-bit word string data DPB ′ from the S / P converter 75 (20) and 20 from the S / P converter 76.
The 20-bit word string data DP is absorbed by absorbing the mutual time difference generated between the bit word string data DPC '(20).
The word transmission rate based on A '(20) is set to 74.25M.
20-bit word string data DPAQ '(2
0) and the word transmission rate based on the 20-bit word string data DPB ′ (20) is set to 74.25 MBps 2
The mutual time difference between the 0-bit word string data DPBQ '(20) and the 20-bit word string data DPCQ' (20) that makes the word transmission rate based on the 20-bit word string data DPC '(20) 74.25 MBps. It is sent out as being aimed at being maintained in a non-existent state.

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, and the 20-bit word string data DPAQ (20) and the auxiliary data DAA are individually sent out to obtain the 20-bit word string data DPA.
(20) is supplied to the data reproduction processing unit 80. In the data separating section 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) is obtained.
And the auxiliary data DAB are individually transmitted, and the 20-bit word string data DPBQ (20) is transferred to the data reproduction processing unit 8
Supplied to zero. Further, in the data separation unit 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 individually 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, 20-bit word string data DPAQ (20), DPBQ (2
0) and DPCQ (20) are subjected to data reproduction processing which is the reverse of the data conversion processing performed on the digital data DTC by the data processing unit 51 on the transmission side, and 20
Bit word string data DPAQ (20), DPBQ (2
0) and digital data D based on DPCQ (20)
Play TC. In such digital data DTC, the number of lines per frame is 1556, the number of data samples per line is 2048, and the number of quantization bits is 10 bits. G, B, R
It is assumed to form a telecine signal which is a progressive progressive digital video signal.

Also in the above description, the 20-bit word string data DPA (20) has a segmented frame structure, and the number of effective lines per field is 540 and the number of effective data samples per line is 19
Since it forms an HD digital video signal of 20 samples, it is possible to perform recording and reproduction by a current HD VTR, for example. Therefore, the current HD VTR can be used to check and edit the content of the 20-bit word string data DPA (20), and further, the current HD VTR and video monitor can be used. As a result, it is possible to obtain a reproduced image based on the 20-bit word string data DPA (20), which makes it possible to perform confirmation work or the like using current equipment when handling data that forms a telecine signal. It is extremely convenient.

FIG. 19 is a block diagram of the present application in which an example of the data transmission method according to the invention described in any one of claims 11 to 14 and claim 16 in the claims of the present application is implemented. 27 shows a part of a data transmission / reception device including an example of the data transmission device according to the invention described in claim 26 or claim 28 in the range of FIG.

The data transmission / reception device shown in FIG. 19 has many parts configured similarly to the data transmission / reception device shown in FIG. 16, and FIG. 19 shows the data transmission / reception device shown in FIG. Only the parts that are different from and related to are shown.

In the data transmission / reception apparatus shown in FIG. 19 in the data transmission / reception apparatus shown in FIG. 16, E / O conversion units 57 and 60 and O / E conversion units 70 and 72 are provided. Instead, it is provided with E / O converters 81 and 82 and O / E converters 88 and 89. Further, the optical connectors 61, 63 and 65, and the optical fiber transmission line 6 provided in the data transmission / reception device shown in FIG.
2, 64 and 66, and optical connectors 67, 69 and 7
Instead of No. 1, it includes a multiplexing unit 83, an optical connector 84, an optical fiber transmission line 85, an optical connector 86, and a demultiplexing unit 87. The optical fiber transmission line 85 is, for example, a quartz SM.
It is formed by using F.

In the data transmission / reception device shown in FIG. 19, the serial data DSA whose bit transmission rate from the P / S converter 53 is 1.485 Gbps.
Is supplied to the E / O converter 54, serial data DSB from the P / S converter 56 with a bit transmission rate of 1.485 Gbps is supplied to the E / O converter 81, and further 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, about 1.3 μm.
An optical signal OSA having a bit rate of 1.48
It is formed to have a speed of 5 Gbps and is combined with the multiplexing unit 83.
Lead to. Further, in the E / O converter 81, the P / S
The bit transmission rate from the converter 56 is 1.485 Gbp.
The serial data DSB to be s is subjected to electro-optical conversion processing,
Based on the serial data DSB, the center wavelength is, for example,
An optical signal OSB having a wavelength of approximately 1.48 μm is formed as a signal having a bit transmission rate of 1.485 Gbps, and the optical signal OSB is guided to the multiplexing unit 83. Further, in the E / O conversion unit 82, the serial data DSC having the bit transmission rate of 1.485 Gbps from the P / S conversion unit 59 is subjected to electro-optical conversion processing, and the center wavelength based on the serial data DSC is set to, for example, Optical signal OSC of about 1.55 μm
Are formed so that the bit transmission rate is 1.485 Gbps, and they are guided to the multiplexing unit 83.

The multiplexing section 83 is formed of, for example, a dielectric multilayer film type wavelength division multiplexer (dielectric multilayer film type WDM coupler). In the multiplexing unit 83, the optical signal OSA having a center wavelength of about 1.3 μm and the center wavelength of about 1.48 are used.
The optical signal OSB having a wavelength of .mu.m and the optical signal OSC having a center wavelength of approximately 1.55 .mu.m are multiplexed and multiplexed to obtain a multiplexed optical signal O.
Form SZ and send it out as a transmission signal.

The multiplexed optical signal OSZ, which is the transmission signal sent from the multiplexing unit 83, is guided to the optical fiber transmission line 85 through the optical connector 84 and transmitted to the reception side through the optical fiber transmission line 85. Under such circumstances, the E / O converters 54, 81 and 82, the multiplexer 83 and the optical connector 84 convert the serial data DSA, DSB and DSC obtained from the P / S converters 53, 56 and 59, respectively. It forms a data sending unit for sending out for transmission.

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

Optical signal OS reproduced by demultiplexing unit 87
A, OSB and OSC are the O / E converters 68 and 8 respectively.
Leads to 8 and 89. In the O / E converter 68, the optical signal OSA having a center wavelength of approximately 1.3 μm and a bit transmission rate of 1.485 Gbps is subjected to photoelectric conversion processing to obtain a bit transmission rate based on the optical signal OSA. The serial data DSA of 1.485 Gbps is reproduced. Then, the reproduced serial data DSA is S
It is supplied to the / P converter 73. Also, the O / E converter 88
In this case, the optical signal OSB having a center wavelength of approximately 1.48 μm and a bit transmission rate of 1.485 Gbps is subjected to photoelectric conversion processing, and the bit transmission rate is set to 1.485 Gbps based on the optical signal OSB. Data D
Play SB. Then, the reproduced serial data D
SB is supplied to the S / P conversion unit 75. Furthermore, O /
In the E conversion unit 89, the optical signal OSC having a center wavelength of approximately 1.55 μm and a 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 1. The serial data DSC of 485 Gbps is reproduced. Then, the reproduced serial data DSC is supplied to the S / P conversion unit 76.
Other operations are similar to those of the data transmission / reception device shown in FIG.

FIG. 20 is a block diagram of the present application in which an example of the data transmission method according to the invention described in any one of claims 11 to 14 and claim 18 is implemented. 32 shows a part of a data transmission / reception device including an example of the data transmission device according to the invention described in claim 26 or claim 30 in the range of FIG.

The data transmission / reception device shown in FIG. 20 also has many parts configured similarly to the data transmission / reception device shown in FIG. 16, and FIG. 20 shows the data transmission / reception device shown in FIG. Only the parts that are different from and related to are shown.

In the data transmission / reception apparatus shown in FIG. 20, the E / O converters 54, 57 and 60 and O / E provided in the data transmission / reception apparatus shown in FIG.
E / O converter 9 instead of converters 68, 70 and 72
1 and 94 and O / E converters 98 and 101. Furthermore, 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 transmission / reception device shown in FIG.
Instead of 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 by using, for example, a silica-based SMF.

In the data transmission / reception device shown in FIG. 20, the serial data DSA whose bit transmission rate from the P / S converter 53 is 1.485 Gbps.
And the bit transmission rate from the P / S converter 56 is 1.48.
The serial data DSB of 5 Gbps is supplied to the bit multiplexing unit 90. In the bit multiplexing unit 90,
One bit is alternately taken out from each of the serial data DSA and DSB and sequentially arranged, and the bit multiplex combining process is performed on the serial data DSA and DSB, and the bit transmission rate is 1.485 Gbps × 2 = 2.
Composite serial data DZV of 97 Gbps is formed.

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

Further, 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, which is based on the serial data DSC, is formed with a bit transmission rate of 1.485 Gbps, and is transmitted as a transmission signal. .

The optical signal OZV, which is the transmission signal sent from the E / O converter 91, is guided to the optical fiber transmission line 93 through the optical connector 92 and transmitted to the receiving side through the optical fiber transmission line 93. In addition, 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 transmitted to the receiving side through the optical fiber transmission line 96.

Under these circumstances, the bit multiplexer 90 and the E /
O conversion unit 91 and optical connector 92, and E / O conversion unit 94
The optical connector 95 and the optical connector 95 form a data transmission unit for transmitting the serial data DSA, DSB and DSC obtained from the P / S conversion units 53, 56 and 59, respectively.

On the receiving side, the optical fiber transmission line 9
Optical signal OZV transmitted through the optical connector 97
Through the O / E conversion unit 98. In addition, the optical signal OSC transmitted through the optical fiber transmission line 96 is
It is guided to the O / E converter 101 through the optical connector 100.

In the O / E converter 98, the center wavelength is approximately 1.3 μm and the bit transmission rate is 2.97 Gbp.
The optical signal OZV to be s is subjected to photoelectric conversion processing, and the bit transmission rate based on the optical signal OZV is 2.97 Gbps.
To reproduce the composite serial data DZV. And
The reproduced composite serial data DZV is supplied to the bit separation unit 99.

In the bit separation section 99, one bit at a time is taken out from the composite serial data DZV to form an alternate bit group of two, and the composite serial data DZV is subjected to bit separation processing. . Then, the channel is identified by using the channel identification data included in the composite serial data DZV, and the respective bit transmission rates based on the composite serial data DZV are 2.
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 conversion unit 75.

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

FIG. 21 is a diagram showing an example of a data transmission method according to the invention described in any one of claims 11 to 14 and claim 19 in the claims of the present application. 32 shows a part of a data transmission / reception device including an example of the data transmission device according to the invention described in claim 26 or claim 31 in the range of FIG.

The data transmission / reception device of which part is shown in FIG. 21 has many parts configured in the same manner as the data transmission / reception device of which part is shown in FIG. 20, and the data shown in FIG. Blocks corresponding to each block in the transmission / reception device part are shown with the same reference numerals as those in FIG. 20, and duplicate description thereof will be omitted.

In the data transmission / reception apparatus shown in FIG. 21, the serial data DSC whose bit transmission rate from the P / S converter 59 is 1.485 Gbps is E / E.
It is supplied to the O conversion unit 105. In the E / O converter 105, the center wavelength based on the serial data DSC is
For example, the 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 about 1.3 μm, and the bit transmission rate is 2.97 G.
An optical signal OZV of bps and an optical signal OSC of a center wavelength of about 1.55 μm and a bit transmission rate of 1.485 Gbps from the E / O converter 105 are guided to the multiplexer 106. The multiplexing unit 106 is formed of, for example, a dielectric multilayer film type WDM coupler. Multiplexing part 1
06, an optical signal OZV having a center wavelength of about 1.3 μm and an optical signal OSC having a center wavelength of about 1.55 μm
And are multiplexed and multiplexed to form a multiplexed optical signal OZZ,
It is sent out as a transmission signal.

The multiplexed optical signal OZZ, which is the transmission signal sent from the multiplexing unit 106, is guided to the optical fiber transmission line 108 through the optical connector 107, and the optical fiber transmission line 1 is transmitted.
It is transmitted to the receiving side through 08. Under such circumstances, E
The I / O converters 91 and 105, the multiplexer 106, and the optical connector 107 form a data transmitter that transmits the serial data DSA, DSB, and DSC obtained from the P / S converters 53, 56, and 59, respectively. Is forming.

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. Splitting unit 1
10 is formed by using, for example, a dielectric multilayer WDM coupler as a demultiplexing unit. And the demultiplexing unit 11
0, the multiplexed optical signal OZZ has a center wavelength of approximately 1.
The bit transmission rate is 2.97 Gbps by demultiplexing into a component having a center wavelength of about 1.55 μm and a component having a center wavelength of about 3 μm.
And an optical signal OZV having a center wavelength of about 1.3 μm,
An optical signal OSC having a bit transmission rate of 1.485 Gbps and a center wavelength of about 1.55 μm is reproduced.

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

FIG. 22 is a diagram showing an example of a data transmission method according to the invention described in any one of claims 11 to 14 and claim 17 in the claims of the present application. 32 shows a part of a data transmission / reception device including an example of the data transmission device according to the invention described in claim 26 or claim 29.

The data transmission / reception device shown in FIG. 22 also has many parts configured similarly to the data transmission / reception device shown in FIG. 16, and FIG. 22 shows the data transmission / reception device shown in FIG. Only the part different from the part and its related part are shown.

In the data transmission / reception device shown in FIG. 22, the E / O converters 54, 57 and 60 and O / E provided in the data transmission / reception device shown in FIG.
E / O converter 1 instead of converters 68, 70 and 72
30, 131 and 132 and O / E converters 138 and 139
And 140. Further, the optical connector 6 provided in the data transmitting / receiving device shown in FIG.
1, 63 and 65, optical fiber transmission lines 62, 64 and 66, and optical connectors 67, 69 and 71,
The multiplexer 133, the optical connector 134, the optical fiber transmission line 135, the optical connector 136, and the demultiplexer 137 are provided. The optical fiber transmission line 135 is, for example, a silica-based SM.
It is formed by using F.

In the data transmission / reception device shown in FIG. 22, the serial data DSA whose bit transmission rate from the P / S converter 53 is 1.485 Gbps.
Is supplied to the E / O conversion unit 130, serial data DSB having a bit transmission rate of 1.485 Gbps from the P / S conversion unit 56 is supplied to the E / O conversion unit 131, and further, the P / S conversion unit 59. The bit transmission rate from 1.
The serial data DSC of 485 Gbps is supplied to the E / O conversion unit 132.

In the E / O converter 130, the bit transmission rate from the P / S converter 53 is set to 1.485 Gbps.
The serial data DSA is converted into an optical signal OSAC having a center wavelength of, for example, approximately 1.511 μm, and a bit transmission rate of 1.485 Gbps is formed based on the serial data DSA. To the multiplexing unit 133. In addition, the E / O converter 131
In the above, in the optical signal, the serial data DSB having the bit transmission rate of 1.485 Gbps from the P / S conversion unit 56 is subjected to electro-optical conversion processing, and the center wavelength based on the serial data DSB is, for example, about 1.531 μm. OS
The BC is formed so that the bit transmission rate is 1.485 Gbps, and is guided to the multiplexing unit 133. Further, in the E / O conversion unit 132, the P / S conversion unit 59
From the serial data DSC having a bit transmission rate of 1.485 Gbps, and the center wavelength based on the serial data DSC is, for example, about 1.55.
The optical signal OSCC of 1 μm is formed as a bit transmission rate of 1.485 Gbps, and the optical signal OSCC is guided to the multiplexing unit 133.

In the multiplexer 133, an optical signal OSAC having a center wavelength of about 1.511 μm, an optical signal OSBC having a center wavelength of about 1.531 μm, and an optical signal OSCC having a center wavelength of about 1.551 μm. And are multiplexed and multiplexed to form a multiplexed optical signal OSZC, which is transmitted as a transmission signal.

In this way, the optical signals OSAC, OSBC and OSCC multiplexed in the multiplexing unit 133 are
It has center wavelengths that are sequentially close to each other with a wavelength interval of approximately 0.020 μm (20 nm), and therefore, those center wavelengths are only approximately 0.020 μm apart and have wavelengths that are extremely close to each other. Originally multiplexed,
It is supposed to form the multiplexed optical signal OSZC. Then, the E / O conversion units 130, 131 and 132 and the multiplexing unit 1
In the part including 33 and 33, Coase Wavelength Divis
A wavelength multiplexing technique called ion multiplexing (CWDM) is used.

The multiplexed optical signal OSZC, which is the transmission signal sent from the multiplexing unit 133, is guided to the optical fiber transmission line 135 through the optical connector 134 and transmitted to the reception side through the optical fiber transmission line 135. Under such circumstances,
E / O converters 130, 131 and 132 and multiplexer 133
The optical connector 134 and the optical connector 134 form a data transmission unit for transmitting the serial data DSA, DSB and DSC obtained from the P / S conversion units 53, 56 and 59, respectively.

On the receiving side, the optical fiber transmission line 1
The multiplexed optical signal OSZC transmitted through 35 is guided to the demultiplexing unit 137 through the optical connector 136. In the demultiplexing unit 137, the multiplexed optical signal OSZC has a component having a center wavelength of about 1.511 μm and a center wavelength of about 1.531.
The bit transmission rate is 1.485 Gbp by demultiplexing into a component having a center wavelength of about 1.551 μm and a component having a center wavelength of about 1.551 μm.
and an optical signal OS with a center wavelength of about 1.511 μm
AC and the bit transmission rate is 1.485 Gbps,
An optical signal OSBC having a center wavelength of approximately 1.531 μm,
An optical signal OSCC having a bit transmission rate of 1.485 Gbps and a center wavelength of about 1.551 μm is reproduced.

Optical signal OS reproduced by demultiplexer 137
AC, OSBC, and OSCC are the O / E converters 1, respectively.
38, 139 and 140. O / E converter 1
No. 38, the optical signal OS has a center wavelength of about 1.511 μm and a bit transmission rate of 1.485 Gbps.
The AC is photoelectrically converted to reproduce the serial data DSA having a bit transmission rate of 1.485 Gbps based on the optical signal OSAC. Then, the reproduced serial data DSA is supplied to the S / P conversion unit 73.
In the O / E converter 139, the center wavelength is set to about 1.531 μm, and the bit transmission rate is 1.485G.
The optical signal OSBC for bps is subjected to photoelectric conversion processing,
A bit transmission rate of 1.48 based on the optical signal OSBC
The serial data DSB of 5 Gbps is reproduced. Then, the reproduced serial data DSB is supplied to the S / P conversion unit 75. Further, in the O / E conversion unit 140, the optical signal OSCC having a center wavelength of approximately 1.551 μm and a bit transmission rate of 1.485 Gbps is subjected to photoelectric conversion processing, and bit transmission based on the optical signal OSCC is performed. The serial data DSC having a rate of 1.485 Gbps is reproduced. Then, the reproduced serial data DSC is supplied to the S / P conversion unit 76. Other operations are similar to those of the data transmission / reception device shown in FIG.

[0168]

As is apparent from the above description, the data transmission method according to the invention described in any one of claims 1 to 10 in the claims of the present application or claims 20 to 20. In the data transmission device according to the invention described in any one of No. 25 to 25, for example, the frame rate is 24 Hz, 25 Hz or 30 Hz, the number of lines per frame is 1556, and the number of data samples per line is 2048
Samples, or the number of lines per frame is 1080 lines and the number of data samples per line is 2560 samples,
An effective line section in which digital data forming a telecine signal having a quantization bit number of 10 bits and word string data based on a first part of the data representing the main central part of each frame image included therein are arranged. And a second parallel digital video signal having an effective line portion in which word string data based on a second portion of the data representing the main central portion of each frame image is arranged. Data, and the first and second parallel digital video signal data are further converted into first and second serial digital data, respectively, and are sent out for transmission.

If necessary, the word string data based on the data representing the portion other than the main central portion of each frame image included in the digital data forming the telecine signal is the first and second parallel digital video signal data. In the blanking section, or in the effective line section of the second parallel digital video signal data, superposed on word string data based on the second part of the data showing the main central part of each frame image. The condition of being arranged is taken.

The serial transmission of each of the first and second serial digital data obtained by converting the digital data forming the telecine signal as described above is used for serial transmission according to HD SDI, for example. It can be appropriately performed by utilizing existing circuit components.

Further, the data transmission method according to the invention described in any one of claims 11 to 19 in the claims of the present application or any one of claims 26 to 31. In the data transmission device according to the present invention, for example, the frame rate is 24H.
z, 25 Hz or 30 Hz, the number of lines per frame is 1556 lines, the number of data samples per line is 2048 samples, and the digital data forming a telecine signal with a quantization bit number of 10 bits. Of the first parallel digital video signal data having an effective line portion in which word string data based on the first portion of the data representing the main central portion of each frame image included therein and Second parallel digital video signal data having an effective line portion in which word string data based on the second portion of the data representing the main central portion are arranged, and each frame included in the digital data forming the above-mentioned telecine signal. Based on data representing parts other than the main central part of the image Data is converted into the third parallel digital video signal data having an effective line portion in which the data string data is arranged, and these first, second and third parallel digital video signal data are further converted into first, second and third parallel digital video signal data. Converted to second and third serial digital data respectively and sent out for transmission.

In this way, the first, second and third digital data obtained by converting the telecine signal are converted.
It is assumed that the serial transmission of each of the serial digital data can be appropriately performed by using the existing circuit components used for the serial transmission according to HD SDI, for example.

[Brief description of drawings]

1 to 20. In the claims of the present application, the example of the data transmission method according to the invention described in any one of claims 1 to 8 is implemented. FIG. 24 is a block connection diagram showing a data transmission / reception device including an example of the data transmission device according to the invention described in any one of claims 23.

FIG. 2 is a block connection diagram showing a specific configuration example of a data processing unit in the data transmission / reception device shown in FIG.

FIG. 3 is a conceptual diagram provided for explaining an operation of a data processing unit in the data transmission / reception device shown in FIG.

FIG. 4 is a conceptual diagram showing data used for explaining an operation of a data processing unit in the data transmission / reception device shown in FIG. 1.

5 is a conceptual diagram provided for explaining an operation of a data processing unit in the data transmission / reception device shown in FIG. 1. FIG.

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

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

8 is a conceptual diagram showing data used for explaining the operation of the data processing unit in the data transmission / reception device shown in FIG. 1. FIG.

FIG. 9 is a conceptual diagram provided for explaining an operation of a data processing unit in the data transmission / reception device shown in FIG. 1.

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

FIG. 11 is a conceptual diagram provided for explaining an operation of a data processing unit in the data transmission / reception device shown in FIG. 1.

FIG. 12 is a conceptual diagram showing data used for explaining the operation of the data processing unit in the data transmission / reception device shown in FIG. 1.

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

FIG. 14 is a scope of claims of the present application in which an example of a data transmission method according to the invention described in any of claims 1 to 7 and claim 9 of the scope of claims of the present application is implemented. FIG. 25 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in any one of claims 20 to 22 and claim 24.

FIG. 15 is a scope of claims of the present application in which an example of the data transmission method according to the invention described in any one of claims 1 to 7 and claim 10 of the scope of claims of the present application is implemented. FIG. 26 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in any one of claims 20 to 22 and claim 25.

FIG. 16: Claim 11 in the claims of the present application
An example of a data transmission method according to the invention described in any one of claims 1 to 15 is implemented, and a data transmission device according to the invention described in claim 26 or claim 27 in the claims of the present application is implemented. It is a block connection diagram showing a data transmitting and receiving device including an example.

FIG. 17 is a block connection diagram showing a specific configuration example of a data processing unit in the data transmission / reception device shown in FIG. 16.

FIG. 18 is a conceptual diagram provided for explaining the operation of the data processing unit in the data transmission / reception device shown in FIG. 16.

FIG. 19 Claim 11 in the scope of claims of the present application
26 to 28 in the claims of the present application, in which examples of the data transmission method according to the invention described in any one of claims 1 to 14 and 16 are implemented.
2 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in FIG.

FIG. 20: Claim 11 within the scope of the claims of the present application
26 to 30 in the claims of the present application, in which the example of the data transmission method according to the invention described in any one of claims 1 to 14 and claim 18 is implemented.
2 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in FIG.

21. Claim 11 within the scope of the claims of the present application
26 to 31 in the claims of the present application, in which examples of the data transmission method according to the invention described in any one of claims 1 to 14 and 19 are implemented.
2 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in FIG.

22. Claim 11 in the claims of the present application
Claims 25 or 29 in the claims of the present application, in which the example of the data transmission method according to the invention described in any one of claims 1 to 14 and claim 17 is implemented.
2 is a block connection diagram showing a part of a data transmission / reception device including an example of the data transmission device according to the invention described in FIG.

FIG. 23 is a conceptual diagram provided for explaining an example of a data format of a progressive HD signal.

FIG. 24 is a conceptual diagram provided for explaining an example of a data format of a progressive HD signal.

FIG. 25 is a conceptual diagram provided for explaining an example of a data format of a telecine signal.

[Explanation of symbols]

11, 51 ... Data processing unit, 12, 15, 52,
55, 58 ... Data insertion section, 13, 16, 53,
56, 59 ... P / S converter, 14, 17, 35,
43, 54, 57, 60, 81, 82, 91, 94, 1
05, 130-132 ... E / O converter, 18, 2
0, 22, 24, 37, 39, 45, 47, 61, 6
3,65,67,69,71,84,86,92,9
5,97,100,107,109,134,136 ・
..Optical connectors, 19, 21, 38, 46, 62, 6
4, 66, 85, 93, 96, 108, 135 ... Optical fiber transmission line, 23, 25, 41, 48, 68,
70, 72, 88, 89, 98, 101, 111, 11
2, 138-140 ... O / E converter, 26, 3
0, 73, 75, 76 ... S / P converter, 28, 3
1, 77-79 ... Data separation unit, 29, 74 ...
Data time difference absorption unit, 32, 80 ... Data reproduction processing unit, 36, 83, 106, 133 ... Multiplexing unit,
40, 87, 110, 137 ... Demultiplexing unit, 42,
90 ... Bit multiplexing section, 49, 99 ... Bit separating section, 120 ... Memory section, 121 ... Control signal forming section, 122 ... Data switching / combining section, 123 ...
..SAV / EAV data generator, 124.Line number data generator, 125 ... Error detection signal data generator

Claims (31)

[Claims] 1. A first part of the data representing the main central part of each frame image contained in the digital data from digital data forming a digital video signal representing each frame image of the video film as one frame image. The first parallel digital video signal data having an effective line portion in which the word string data based on the above is arranged, and the word string data based on the second part of the data representing the main central portion of each frame image are arranged. Second parallel digital video signal data having an effective line portion, and converting the first and second parallel digital video signal data into first and second serial digital data, respectively. And a data transmission method for transmitting to transmit second serial digital data. 2. A blanking section in the first and second parallel digital video signal data, which is word string data based on data representing a portion other than the main central portion of each frame image included in the digital data forming the digital video signal. The data transmission method according to claim 1, wherein 3. Word sequence data based on data representing a portion other than the main central portion of each frame image included in digital data forming a digital video signal is added to an effective line portion of the second parallel digital video signal data, 2. The data transmission method according to claim 1, wherein the main central portion of each frame image is arranged so as to be superimposed on the word string data based on the second portion of the data representing the main central portion. 4. The data transmission method according to any one of claims 1 to 3, wherein the first parallel digital video signal data is of a segmented frame format. 5. The main center portion of each frame image is a portion represented by the data of 1920 samples in each of 1440 lines in the frame image, according to any one of claims 1 to 3. The data transmission method described in. 6. The main center portion of each frame image is a portion represented by data of 1920 samples in each of 1080 lines in the frame image, according to any one of claims 1 to 3. The data transmission method described in. 7. A word transmission rate of each of the first and second parallel digital video signal data is 74.25 MB.
The data transmission method according to any one of claims 1 to 3, wherein 20-bit word string data of ps is formed. 8. The first and second serial digital data are converted into first and second optical signals having different center wavelengths from each other, and the first and second optical signals are respectively converted into first and second optical signals. Two
The data transmission method according to any one of claims 1 to 3, wherein the data is transmitted through the optical signal transmission cable. 9. The first and second serial digital data are converted into first and second optical signals whose center wavelengths are different from each other, and the first and second optical signals are combined to generate an optical signal. The signal is transmitted through a signal transmission cable.
4. The data transmission method according to claim 3. 10. The first and second serial digital data is subjected to bit multiplexing processing to obtain composite serial digital data, the composite serial digital data is converted into an optical signal, and the optical signal is transmitted through an optical signal transmission cable. The data transmission method according to any one of claims 1 to 3, wherein 11. The first of the data representing the main central portion of each frame image included in the digital data from the digital data forming the digital video signal representing each frame image of the video film as one frame image.
First parallel digital video signal data having an effective line portion in which word string data based on the part of
Second parallel digital video signal data having an effective line portion in which word string data based on a second portion of the data representing the main central portion of each frame image is arranged, and digital data forming the digital video signal. Forming a third parallel digital video signal data having an effective line portion in which word string data based on data representing a portion other than the main central portion of each frame image included in And a third parallel digital video signal data are converted into first, second and third serial digital data, respectively, and the first, second and third serial digital data are transmitted to be transmitted. . 12. The data transmission method according to claim 11, wherein the first parallel digital video signal data is of a segmented frame format. 13. The main central portion of each frame image included in digital data forming a digital video signal is displayed in each of 1,440 lines in the frame image in 1920.
The data transmission method according to claim 11, wherein the portion is represented by sample data. 14. Each of the first, second and third parallel digital video signal data having a word transmission rate of 74.
The data transmission method according to claim 11, wherein 20-bit word string data of 25 MBps is formed. 15. The first, second and third serial digital data are converted into first, second and third optical signals having center wavelengths different from each other, and the first, second and third optical signals are converted. 12. The data transmission method according to claim 11, wherein said optical signal is transmitted through the first, second and third optical signal transmission cables, respectively. 16. The first, second and third serial digital data are converted into first, second and third optical signals having center wavelengths different from each other, and the first, second and third optical signals are converted. 12. The data transmission method according to claim 11, wherein the optical signals of 1 are combined and transmitted through an optical signal transmission cable. 17. The data transmission method according to claim 16, wherein the first, second and third optical signals have central wavelengths which are successively closer to each other at a predetermined wavelength interval. 18. A composite serial digital data is obtained by performing bit multiplexing processing on two of the first, second and third serial digital data, and the composite serial digital data and the first, second and third composite digital data. The remaining one of the three serial digital data is converted into first and second optical signals, respectively, and the first and second optical signals are transmitted through the first and second optical signal transmission cables, respectively. The data transmission method according to claim 11, characterized in that. 19. A composite serial digital data is obtained by performing bit multiplexing processing on two of the first, second and third serial digital data, and the composite serial digital data and the first, second and third composite digital data. The remaining one of the serial digital data of 3 is converted into first and second optical signals having different center wavelengths from each other, and the first and second optical signals are multiplexed to transmit the optical signal. The data transmission method according to claim 11, wherein the data is transmitted via a cable. 20. The first of the data representing the main central portion of each frame image included in the digital data, from the digital data forming the digital video signal representing each frame image of the video film as one frame image.
First parallel digital video signal data having an effective line portion in which word string data based on the part of
A data processing unit for forming second parallel digital video signal data having an effective line portion in which word string data based on a second portion of the data representing the main central portion of each frame image is arranged; First and second parallel / serial conversion units for converting the first and second parallel digital video signal data obtained from the data processing unit into first and second serial digital data, respectively, and the first and second parallel / serial conversion units. A data transmission device comprising: a data transmission unit for transmitting the first and second serial digital data respectively obtained from the two parallel / serial conversion units. 21. A data processing section converts word string data based on data representing a portion other than a main central portion of each frame image included in digital data forming a digital video signal into first and second parallel digital video signals. 21. The data transmission device according to claim 20, wherein the data transmission device is arranged in a blanking part in the data. 22. The data processing section uses the word string data based on the data representing the portion other than the main central portion of each frame image included in the digital data forming the digital video signal as effective in the second parallel digital video signal data. 3. The line portion is arranged so as to be superimposed on the word string data based on the second portion of the data representing the main central portion of each frame image.
0 data transmission device. 23. A first and second optical signal forming unit, wherein a data sending unit converts the first and second serial digital data into first and second optical signals having different center wavelengths from each other. , The first and second optical signals are respectively converted into first and second optical signals.
23. The data transmission device according to claim 20, further comprising: a first optical connector and a second optical connector for guiding the optical signal transmission cable. 24. A first and second optical signal forming section, wherein the data sending section converts the first and second serial digital data into first and second optical signals having different center wavelengths from each other. A multiplexing unit for multiplexing the first and second optical signals to obtain a multiplexed optical signal, and an optical connector for guiding the multiplexed optical signal to an optical signal transmission cable. The data transmission device according to any one of claims 20 to 22. 25. A bit multiplexing unit, wherein a data sending unit performs a bit multiplexing process on the first and second serial digital data to obtain composite serial digital data; and an optical signal for converting the composite serial digital data into an optical signal. 21. It is comprised including the formation part and the optical connector which guides the said optical signal to an optical signal transmission cable.
23. The data transmission device according to claim 22. 26. The first of the data representing the main central portion of each frame image included in the digital data from digital data forming a digital video signal representing each frame image of the video film as one frame image.
First parallel digital video signal data having an effective line portion in which word string data based on the part of
Second parallel digital video signal data having an effective line portion in which word string data based on a second portion of the data representing the main central portion of each frame image is arranged, and digital data forming the digital video signal. A data processing unit for forming a third parallel digital video signal data having an effective line portion in which word string data based on data representing a portion other than the main central portion of each frame image included in First, second and third parallel / serial conversion for converting the first, second and third parallel digital video signal data obtained from the processing unit into first, second and third serial digital data, respectively Section, and the first, second and third sections respectively obtained from the first, second and third parallel / serial conversion sections. Configured to include a data transmitting portion for transmitting a serial digital data, a data transmission device. 27. A first, a second, and a second data converting section converts the first, second, and third serial digital data into first, second, and third optical signals having different center wavelengths from each other.
And a third optical signal forming section, and first, second and third optical connectors for guiding the first, second and third optical signals to the first, second and third optical signal transmission cables, respectively. 27. The data transmission device according to claim 26, characterized in that the data transmission device comprises: 28. A first, a second, and a second data converting section converts the first, second, and third serial digital data into first, second, and third optical signals having different center wavelengths from each other.
And a third optical signal forming section, a multiplexing section for multiplexing the first, second and third optical signals to obtain a multiplexed optical signal, and an optical connector for guiding the multiplexed optical signal to an optical signal transmission cable. 27. The data transmission device according to claim 26, characterized in that the data transmission device comprises: 29. The optical signal forming section forms the first, second and third optical signals as those having central wavelengths which are successively closer to each other at a predetermined wavelength interval. 28. A data transmission device according to item 28. 30. A data multiplexing unit, which performs a bit multiplexing process on two of the first, second and third serial digital data to obtain composite serial digital data, and said composite serial digital data. And first and second optical signal forming sections for converting the remaining one of the first, second and third serial digital data into first and second optical signals, respectively, and the first and second optical signal forming sections. A first optical signal transmission cable for guiding the second optical signal to the first and second optical signal transmission cables, respectively;
27. The data transmission device according to claim 26, further comprising: and a second optical connector. 31. A bit multiplexing unit, wherein a data sending unit performs a bit multiplexing process on two of the first, second and third serial digital data to obtain composite serial digital data; and the composite serial digital data. And first and second optical signal formation for converting the remaining one of the first, second and third serial digital data into first and second optical signals having different center wavelengths from each other. Section, a multiplexing section for multiplexing the first and second optical signals to obtain a multiplexed optical signal, and an optical connector for guiding the multiplexed optical signal to an optical signal transmission cable. The data transmission device according to claim 26.