JPS6467084A - Video signal processor - Google Patents

Video signal processor

Info

Publication number
JPS6467084A
JPS6467084A JP62223308A JP22330887A JPS6467084A JP S6467084 A JPS6467084 A JP S6467084A JP 62223308 A JP62223308 A JP 62223308A JP 22330887 A JP22330887 A JP 22330887A JP S6467084 A JPS6467084 A JP S6467084A
Authority
JP
Japan
Prior art keywords
video signal
converter
synchronizing signal
signal
output voltage
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.)
Pending
Application number
JP62223308A
Other languages
Japanese (ja)
Inventor
Masumi Kato
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62223308A priority Critical patent/JPS6467084A/en
Publication of JPS6467084A publication Critical patent/JPS6467084A/en
Pending legal-status Critical Current

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  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To obtain a high quality video signal by inverting and extending a synchronizing signal to the maximum output voltage of an analog/digital converter, inverting and lowering a decoded synchronizing signal at the time of appearing the maximum output voltage of a digital/analog converter, slicing by the amplitude of the synchronizing signal, and reproducing a composite video signal. CONSTITUTION:The composite video signal CV clamped by a prescribed potential is encoded by inverting and extending the synchronizing signal by the maximum output voltage of the A/D converter 11. Thereafter, the synchronizing signal of the signal decoded by the D/A converter 13 is synchronously inverted and lowered at the time appearing the maximum output voltage of the D/A converter 13, sliced by the amplitude of the synchronizing signal to reproduce the decoded composite video signal CV. Thereby, in the composite video signal CV, at the time of quantizing, a video signal amplitude 3/4.((VMAX-VREF) from a pedestal level to a white level is improved to have a similar operation to the increase of the number of quantizing bits, so that the picture quality is improved.
JP62223308A 1987-09-07 1987-09-07 Video signal processor Pending JPS6467084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223308A JPS6467084A (en) 1987-09-07 1987-09-07 Video signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223308A JPS6467084A (en) 1987-09-07 1987-09-07 Video signal processor

Publications (1)

Publication Number Publication Date
JPS6467084A true JPS6467084A (en) 1989-03-13

Family

ID=16796112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223308A Pending JPS6467084A (en) 1987-09-07 1987-09-07 Video signal processor

Country Status (1)

Country Link
JP (1) JPS6467084A (en)

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