JPS5990209A - Information recording disk and its reproducing device - Google Patents

Abstract

PURPOSE:To attain recording while reducing the amount of data by recording picture element data and starting and ending point addresses in a picture element group wherein the same information succeeds among picture elements arrayed on a screen laterally. CONSTITUTION:A synchronizing signal part S as the 1st word, a picture kind identification code ''MODE'' indicating a run-length mode as the four high-order bits of the 2nd words, a start address S.Adr as the eight low-order bits of the 3rd and the 4th words, an end address E.Adr as the eight low-order bits of the 5th and the 6th words, etc., are recorded at a header video signal part E1. When picture data which has the same information parts on several lateral and longitudinal lines on the screen is recorded, the addresses of the starting and ending points of the part are specified and the picture element data at the part is specified to reduce the amount of data to be recorded as compared with the recording of every picture element. Thus, the recording is attained while the amount of data is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an 111 report recording circle 3): and its reproducing device, and an information recording disk that can record 7 fewer data stitches and a memory address of the memory that can be obtained in a furnace time. The purpose of the present invention is to provide a playback device that can be used in a variety of ways.

First of all, the person who did not appear first generated a digital video signal, which is pixel data for h pixels arranged in a matrix on the screen, by digital pulse modulation using one cog video signal. We proposed a method for recording on a recording medium. This is a monthly i1't for digital audio news.
+H as l u, = l digital video signal *? (=J plus the same l on the disk
WEr is recorded as changes in the bit string that occur intermittently in the rack.

On the other hand, the bit string on this disk, for example, 74
As a change/adventure, Ki 61 Shinko? rθ゛l, take jI
live.

The structure of one frame of digital video recorder No. 1d recorded on a disc using this recording method is shown in FIG. H2,..., H286, 16 bit, 68
4-word digital video - 1st givis VV...'
■2B6 and 1 l 2j are synthesized alternately in chronological order. one video signal 1
911 is assigned the first and second fields for the upper 8 bits and the lower 8 bits, respectively, and is used for the bidet No. 4jf Danto V1.
V2. . . is the first digit on the screen. Second. . . 6841', fl (; 456 pieces of 1t'U signal and color difference signal 22B + 1fl) on the line 6841', fl (456 pieces and color difference signal 22B + 1fl) are shown in this video.

Next, the structure of the header section HH..., H2B6 is the 211th
2' μ[1] shown in the figure, synchronization signal indicating the start of header t'rlIS>Xl-8, identification code ff1s 0% memory address bars 18B1 to B4, etc. are synthesized. The identification code section C identifies whether the image I1 is a general still image I9 or a still image I1 in the Run I non-guess mode.
Is the number 18 transmitted for 1 frame or 1 field? Image edge for identification -: 111' Identification code [FR/F
It is composed of LJ, etc.

By the way, as shown in 8B 3 l''
Returned J: Eel part P4. One still image of simple color and shape where P3 exists? When recording, in the recording method previously proposed by the applicant, each line of each image forming one frame was recorded line by line, as shown in FIG. This is no good, and the data is increasing, and it takes a long time to store the data in the memory.
I'm ready.

The present invention solves the above-mentioned problems, and the following is an MS? , reveal.

Fig. 4 shows the signal format of the main part of the digital video I='', which is an example of the clearest recording disk that will become clear in this y3d. This is a still image signal format in which there are 111 pixel portions P1 of the same color from the 1st line to the 150th line in one frame.

In FIG. 4, the header/video/video/video@L part E1 has a synchronization part S in the first word, and a run length mode stingy in the upper 4 bits of the second word 1i-1ii 18
fIB-specific identification code "MODBJ," the lower 8 bits of the 3rd and 4th words are the cumulative data of the start point of the pressure section P1 in the 3rd figure. Address S, Adr, 5th.
The lower 8 bits of the 6th word contain the pixel data of the end point of part P1. Pixel data, the upper 8 bits of the 5th word and the 6th word are each MIXed P1.
Each pixel data of color difference change (R-Y) and (B-Y) is recorded. In Fig. 3, for example d: exists from the 151st line to the 400th line (pixels j'ilS of different colors i'i'f information in the 11'l direction, header 7'11 of P2
3 and video I H7''G j'ls are recorded using the recording method previously proposed by Honkawa I [11 people] shown in Figure 2111.・Video WA @ MB It''1' is provided in the manner described in FIG.

In this way, on the screen 1. Write down the pixel data where parts of the same information exist in the ¥ direction and vertical direction along the line] Specify the station, the address of the start point and the address of the end point of that part, and then write the pixel data of that part. If you use 2g of data, you can record fewer data points than if you record 6 pixels in such a part.

Figure 5 is the invention j)! Information record circle fl'; shows a block system diagram of an embodiment of the town production device. In the figure, each signal is recorded as N211jl on the eye disc using the recording method explained in Figure 4.
1,, the signal that is being output is generated by the pickup circuit 2 and the conventional (known) 0 intensity change or electrostatic fgi tr4-
As a change, the big R Tsubu is played. The signal No. 13 taken out from the pickup circuit 2 is FM recorded by the FM tuner 3 and then fed to the decoder 4. After decoding the 1+44 raw digital signal, the decoder 4 converts the digital audio signal into a DA.
2. Change direction and start using analog audio. While outputting to the M terminal 5, IjJ is output to the digital video (i7?? memory 6, start address latch circuit 7, end address latch circuit 8, header i'j IK detector 9).

The start address S, Adr and the end address E, Adr shown in FIG.
0.11. On the other hand, the address in the memory 6 is output from the ++7'dll-i address generator 12, and the address is: rklii 7
4'' vessel 10°11 is combined with 1U'. Address-Makii
uuJ), “1o surname °, start address S, A
dr, no-Jl! 1. 4jE IjJ'Git and the cell number I-(ili is taken out, while the address match detector 11 detects a match between the end addresses E and Adr and resets it; (Tan outputs IIQ 1L).

” Two words set Ishogo and reset IjK +? Is it a flip′flop? 3, Frisovfu "Kotov 1"
3. A write pulse control signal that rises at the reset signal and falls at the reset signal is extracted. The write pulse control (if signal) is supplied to the run length mode control terminal of the memory write controller 14.

On the other hand, the image shown in the fourth figure detected by the header part detector 9 +
*: , lljl identification code ``MODEJ, start address S, Ad, r, end address B, Adr, are supplied to the memory write controller 14, and are controlled by the memory write controller 14 run length mode.
It is switched to perform l'X. The memory write controller 14 is supplied with the write pulse control signal from the flip-flop 13 and performs the write pulse control No. 13.
(outputs the level period write control signal, and
(Inclusive system (ill). This allows memory 6
The bright light shown in FIG. Y1 color left side data (R-Y
), (B-Y) are written.

Even if there is no pixel data in the valley header section and video signal section for each line in the section P1 shown in FIG. If the pixel data of P1 is recorded, all the pixel data of this portion P1 can be loaded. In addition, it is also possible to create a header section and a video signal section for each line in a short time by detecting the 4th line of each line and writing them to the respective addresses of the respective pixel data.

When writing of pixel data in portion P shown in FIG. 3 is completed, each pixel data in portion P2 is written. 2 [The header H1 video encoded part from the 151st line on both sides recorded next to the header video error l5ISE1 shown in Figure 34 is sequentially extracted and stored in the memory 6 and the header detector 9. Supplied. Third
-・The ladder part of the illustrated part P2 is the bottom part 1 of the second figure.
Image (critical condition identification code 1M0f) Ri
J is a general static direct sales rx M generated code signal, and the video multiplication of part P2 - IA part ■151. ... Write pixel data for each valley line as shown in 11th line 1.
4j, has been done.

The image of the portion P2 detected by the header part detector 9.
p separate +1ti14 separate code l'-MODEJ&Hi start address B, Ad, r, end address E, Adr are supplied to the memory write controller 14, and the memory write controller 14 is not controlled by the general still image 1llll I peak reproduction mode. So flip flop 13
The appearance is L level. The memory 6 stores the old color signal data and color difference signal data in respective predetermined memory addresses based on the addresses specified in the header section.

In this way - la 14. The built-in Digital Video Shingei is a memory read controller 5-piece r.ffi.
IJjshi′1iiU t:'Ifiii:i ”?’:
According to 1. ㅅC Output and read video message'++baD
A %l: :l;:↓ DAi exchange sales at device 16 7
-1-0 It is said to be Kuvideo Shingei. The analog video signal extracted from the DA converter 16 is supplied to the encoder 1γ, where it is added with horizontal and vertical synchronization signals and color tone speech &(τj) to produce a color television signal of the standard television system. It is also used as output terminal 18.

In addition, as shown in FIG. 6, the actual still image P of the landscape '19
When observing an image in which a still image P5 with simple color and shape is inserted into a part of P4, in addition to each double length of P4, the start address of each line of image P5,
The end address and pixel data may be recorded as shown in FIG.

As mentioned above, the news recording disk according to the present invention stores pixel data for - pixels in a pixel group in which the same news continues in a pixel group arranged in four directions on the screen in a certain image. Then, the pixel data of the starting point of the consecutive pixel group with this same rir information is stored in the memory of the reproduction device to the 5th mesori address, and the same lr'i information is the starting point address of the consecutive pixel group. Since the pixel data of the end point and the end point address of 714 times are stored in the 1 pixel memory address of the memory, the same pixel information is continuous 7'il.
Pixel data in S minutes? Ml− for each pixel
: Nail, you can record less data G14 than you do, and also,
The playback device saves the start point address and end point address.
The pixel data for the - pixel in the pixel group of ℃ is connected to the circuit that outputs the I bar number and the control 1ii1 signal from this circuit. Since the memory address corresponding to the address from the address to the end point address is made by 1W, the same pixel information is consecutive f,
Pixel data in ilj minute? For example, it is possible to sequentially detect the header group and video signal section line by line and store each pixel data in each memory address in a short time. 1 (including? 9 hA, 11 Yonaga of % is equal.

[Brief explanation of the drawing] No. +'J<1 is 110ζ11 people first K 4j;j
The signal format 2 for one frame of the digital video signal recorded by the proposed method is shown ~1, Figure 2 &'! Figure 3 is a diagram showing the signal format of the ladder i'1lll during T 1%l. The figure shows the format of the digital video signal recorded on an embodiment of the disk of the present invention. figure,
FIG. 6 is a diagram showing how to delight the i+1+i four portions of a simple still image by 441 people as part of the image L111, which is a live photographed still image. 1...Disk, 4...Decoder, 6...Memory, 1...Start address latch time kt3.8...
End-r address latch circuit, 9...Door/ladder part detector, 10°11...Address match detector, 12...
Read address generator, 13... flip-flop,
14...Memory write controller, 15...Memory read controller, 18...Analog video double length output terminal, S, Adr...Start address, E,
Adr...End address.

Claims (1)

[Claims] [11 pixels/if'f)'14 analog video signals are converted into digital pulses and arranged in a matrix to form one screen with 41 pixels corresponding to pixel data. The digital video signal, which is a time series signal, and the pixel data of the digital video signal are stored in the memory of the reproducing device.
9j 5F The address signal added for each pixel data is recorded in order to input the iH into the address)
・1JFtself6i, in a circle j'1jil, there is a certain 1l
iii Pixel data for - pixels in the pixel group in which the same Iw information is consecutive among the pixel groups arranged horizontally on the screen in the II image, and the starting point of the pixel group in which the same - bacteria)・14 are consecutive. The starting point address for inserting both thread data into the return memory address of the memory, and the same information) 1) The pixel data of the end point of the continuous pixel group is stored at a predetermined memory address of the memory. 1 [): The end address of the message is recorded and the 2nd special 1゛ change is made on the Seiho Kishu disc. (2) One song, one track record, and one record of analog video data are digitally pulse-modulated and arranged in a matrix.
The pixel data of Digital Video Shingei, which is a time-series signal of ilj pixel data corresponding to each pixel constituting the i+j plane, and the digital video No. 16? In order to write to a predetermined address of the memory of the reproducing device ζ, the address signal, l!:, specified for each pixel data is recorded.
When reproducing an axial recording disk, the accumulated picture data reproduced from the disk is written into the memory, then the pixel data is read out, and the read pixel data is A-converted. (In a news recording disk reproducing device that converts and outputs i-numbered data, the same 1114 reports out of the pixel groups arranged horizontally on both sides in a certain image are consecutive%l:
The pixel data for the - pixel in the pixel group to be stored, and the 1σj1 pixel data at the starting point of the pixel group that is continuous with the same pixel group, are stored at the starting point of the memory to 1/1 of the fixed memory address. address and an end point address for writing the end point pixel data of the pixel group connected with the same information into a predetermined memory address of the memory. 2. When reproducing the recorded information recording disk, A circuit that detects the start point address and end point address and outputs a signal on this period side ([11]
A device for inputting pixel data for a - pixel in a continuous pixel group into a memory address corresponding to an address from the start point address to the end point address, in response to a control signal from the circuit. An I+#'+'H recording inner disk 1 generation device characterized by the following.