JPS5574278A - Transmission unit of digital video signal - Google Patents

Transmission unit of digital video signal

Info

Publication number
JPS5574278A
JPS5574278A JP14833978A JP14833978A JPS5574278A JP S5574278 A JPS5574278 A JP S5574278A JP 14833978 A JP14833978 A JP 14833978A JP 14833978 A JP14833978 A JP 14833978A JP S5574278 A JPS5574278 A JP S5574278A
Authority
JP
Japan
Prior art keywords
signal
series
video signal
digital video
digital
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
JP14833978A
Other languages
Japanese (ja)
Other versions
JPS6238908B2 (en
Inventor
Norihisa Shirota
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 JP14833978A priority Critical patent/JPS5574278A/en
Publication of JPS5574278A publication Critical patent/JPS5574278A/en
Publication of JPS6238908B2 publication Critical patent/JPS6238908B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Color Television Systems (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE: To reduce the DC component of digital signal, by obtaining the exclusive logical sum of the digital signal having horizontal or vertical phase distance with the virtual random series and the series inverting it, in transmitting the digital signal formed with video signal in PCM modulation.
CONSTITUTION: The virtual random series produced at the shift register 2, e.g., M series MS and the series inverted MS inverted at the inverter 4 are fed to the selection circuit 5. The selection circuit 5 is selected every 1H and this output is fed to the exclusive OR gate 8 together with the signal at the digital video signal input terminal 1, being the transmission output. Since the two digital video signal and the virtual random signal having strong vertical or horizontal corelativity is given to the gate 8, even if the elimination of the low frequency component to one signal is insufficient, it is sufficient to another, and the elimination of low frequency component is ensured much.
COPYRIGHT: (C)1980,JPO&Japio
JP14833978A 1978-11-30 1978-11-30 Transmission unit of digital video signal Granted JPS5574278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14833978A JPS5574278A (en) 1978-11-30 1978-11-30 Transmission unit of digital video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14833978A JPS5574278A (en) 1978-11-30 1978-11-30 Transmission unit of digital video signal

Publications (2)

Publication Number Publication Date
JPS5574278A true JPS5574278A (en) 1980-06-04
JPS6238908B2 JPS6238908B2 (en) 1987-08-20

Family

ID=15450550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14833978A Granted JPS5574278A (en) 1978-11-30 1978-11-30 Transmission unit of digital video signal

Country Status (1)

Country Link
JP (1) JPS5574278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970176A (en) * 1982-10-14 1984-04-20 Takahashi Yoshiteru Dc linear motor with encoder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970176A (en) * 1982-10-14 1984-04-20 Takahashi Yoshiteru Dc linear motor with encoder

Also Published As

Publication number Publication date
JPS6238908B2 (en) 1987-08-20

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