JPS63171083A - Video signal reproducing device - Google Patents

Video signal reproducing device

Info

Publication number
JPS63171083A
JPS63171083A JP287487A JP287487A JPS63171083A JP S63171083 A JPS63171083 A JP S63171083A JP 287487 A JP287487 A JP 287487A JP 287487 A JP287487 A JP 287487A JP S63171083 A JPS63171083 A JP S63171083A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
signal
head
period
memory
multiplying
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
JP287487A
Inventor
Tsutomu Fukatsu
Yoshihiro Nakatani
Original Assignee
Canon Inc
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

Links

Abstract

PURPOSE: To make the increase of the number of heads and the level supervision of reproducing a video signal unnecessary and to execute quick reproducing where a noise bar does not occur by controlling the write in a memory with the aid of the multiplying signal of a signal in the medium tracing period of a reproducing head.
CONSTITUTION: In a two-head VTR the rotating phase of the head is detected and a head switching signal having the same period as the rotating period of the head is generated. With the switching signal the multiplying signal is generated in a control signal generation circuit 36 and with the multiplying signal a timing sequencer 18 controls the write and the read of a field memory 20. The circuit 36 generates a control signal for switching the kind of a refer ence pilot signal for tracking servo and outputs it to terminals 40 and 42. In the period when the multiplying signal of the head switching signal is 'H', the A/D converted 16 signal is written in the memory 20 and in the period of 'L' the signal in a corresponding section, accumulated in the memory 20 and reproduced one track scanning period before is read out and supplied to a D/A converter 22.
COPYRIGHT: (C)1988,JPO&Japio
JP287487A 1987-01-09 1987-01-09 Video signal reproducing device Pending JPS63171083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP287487A JPS63171083A (en) 1987-01-09 1987-01-09 Video signal reproducing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP287487A JPS63171083A (en) 1987-01-09 1987-01-09 Video signal reproducing device
US07139780 US4882633A (en) 1987-01-09 1987-12-30 Video signal reproducing apparatus with memory

Publications (1)

Publication Number Publication Date
JPS63171083A true true JPS63171083A (en) 1988-07-14

Family

ID=11541498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP287487A Pending JPS63171083A (en) 1987-01-09 1987-01-09 Video signal reproducing device

Country Status (1)

Country Link
JP (1) JPS63171083A (en)

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