JPS5526781A - Transmitter for digital video signal - Google Patents

Transmitter for digital video signal

Info

Publication number
JPS5526781A
JPS5526781A JP10032878A JP10032878A JPS5526781A JP S5526781 A JPS5526781 A JP S5526781A JP 10032878 A JP10032878 A JP 10032878A JP 10032878 A JP10032878 A JP 10032878A JP S5526781 A JPS5526781 A JP S5526781A
Authority
JP
Japan
Prior art keywords
signal
video
video signal
discrimination
video information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10032878A
Other languages
Japanese (ja)
Other versions
JPS637080B2 (en
Inventor
Yoshitaka Hashimoto
Yoshikazu Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP10032878A priority Critical patent/JPS5526781A/en
Publication of JPS5526781A publication Critical patent/JPS5526781A/en
Publication of JPS637080B2 publication Critical patent/JPS637080B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To attain accurate restoration into an original analog signal in regeneration by removing a period except that for video information and adding a signal for the discrimination of orders of frames and fields of a video signal, when the video signal is digitized and recorded.
CONSTITUTION: A composite color video signal from terminal 3 is supplied to A/D converter 4 and separator circuit 5. A signal digitized by converter 4 is inputted to time-axis expander circuit 6 composed of RAM, where the time axis of the digital signal is expanded so that horizontal and vertical periods except that for an image will be removed. A burst signal separated by circuit 5 is applied to continuous-wave generator 12, thereby generating chrominance subcarrier SC. This signal and vertical and horizontal synchronizing signals VD and HD are converted by ID signal generator 14 into name discrimination signals LD, FLD and FRD for a line, field and frame, which are coded 15 and added 8 to video information before being recorded on magnetic tape 2. For regeneration, discrimination signals are decoded 21 to generate 26 composite synchronizing signals and the video information is compressed 23 in terms of time axis and D/A-converted 24, thereby obtaining the original analog information.
COPYRIGHT: (C)1980,JPO&Japio
JP10032878A 1978-08-17 1978-08-17 Transmitter for digital video signal Granted JPS5526781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10032878A JPS5526781A (en) 1978-08-17 1978-08-17 Transmitter for digital video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10032878A JPS5526781A (en) 1978-08-17 1978-08-17 Transmitter for digital video signal

Publications (2)

Publication Number Publication Date
JPS5526781A true JPS5526781A (en) 1980-02-26
JPS637080B2 JPS637080B2 (en) 1988-02-15

Family

ID=14271087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10032878A Granted JPS5526781A (en) 1978-08-17 1978-08-17 Transmitter for digital video signal

Country Status (1)

Country Link
JP (1) JPS5526781A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56160182A (en) * 1980-04-16 1981-12-09 Sony Corp Processor of digital video signal
JPS56160181A (en) * 1980-04-23 1981-12-09 Sony Corp Processing system of digital video signal
JPS5773577A (en) * 1980-10-27 1982-05-08 Sony Corp Control signal fetch circuit
JPS57142085A (en) * 1981-02-27 1982-09-02 Victor Co Of Japan Ltd Digital video signal recording system
JPS57142086A (en) * 1981-02-27 1982-09-02 Victor Co Of Japan Ltd Digital video signal reproducer
JPS60171869A (en) * 1984-02-15 1985-09-05 Sony Corp Synchronizing signal generator
JPS60220694A (en) * 1984-04-17 1985-11-05 Sony Corp Digital vtr
JPS6170880A (en) * 1984-09-14 1986-04-11 Matsushita Electric Ind Co Ltd Recording and reproducing device of video signal
JPS61171295A (en) * 1985-01-25 1986-08-01 Hitachi Ltd Device for correcting time base of video signal
JPS62173887U (en) * 1986-04-23 1987-11-05

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317218A (en) * 1976-07-31 1978-02-17 Sony Corp Recording method of image signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317218A (en) * 1976-07-31 1978-02-17 Sony Corp Recording method of image signal

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56160182A (en) * 1980-04-16 1981-12-09 Sony Corp Processor of digital video signal
JPS56160181A (en) * 1980-04-23 1981-12-09 Sony Corp Processing system of digital video signal
JPH0212075B2 (en) * 1980-10-27 1990-03-16 Sony Corp
JPS5773577A (en) * 1980-10-27 1982-05-08 Sony Corp Control signal fetch circuit
DE3142355A1 (en) * 1980-10-27 1982-09-02 Sony Corp., Tokyo METHOD AND CIRCUIT ARRANGEMENT FOR DETERMINING A CONTROL SIGNAL ASSIGNED TO A DIGITAL DATA SIGNAL
JPS57142085A (en) * 1981-02-27 1982-09-02 Victor Co Of Japan Ltd Digital video signal recording system
JPS57142086A (en) * 1981-02-27 1982-09-02 Victor Co Of Japan Ltd Digital video signal reproducer
JPS60171869A (en) * 1984-02-15 1985-09-05 Sony Corp Synchronizing signal generator
JPS60220694A (en) * 1984-04-17 1985-11-05 Sony Corp Digital vtr
JPS6170880A (en) * 1984-09-14 1986-04-11 Matsushita Electric Ind Co Ltd Recording and reproducing device of video signal
JPH0580872B2 (en) * 1984-09-14 1993-11-10 Matsushita Electric Ind Co Ltd
JPS61171295A (en) * 1985-01-25 1986-08-01 Hitachi Ltd Device for correcting time base of video signal
JPS62173887U (en) * 1986-04-23 1987-11-05

Also Published As

Publication number Publication date
JPS637080B2 (en) 1988-02-15

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