JPS647875A - Reproducing circuit for magnetic recording and reproducing device - Google Patents

Reproducing circuit for magnetic recording and reproducing device

Info

Publication number
JPS647875A
JPS647875A JP62163358A JP16335887A JPS647875A JP S647875 A JPS647875 A JP S647875A JP 62163358 A JP62163358 A JP 62163358A JP 16335887 A JP16335887 A JP 16335887A JP S647875 A JPS647875 A JP S647875A
Authority
JP
Japan
Prior art keywords
circuit
reproducing
time constant
deemphasis
video signal
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
JP62163358A
Other languages
Japanese (ja)
Inventor
Yasushi Hikichi
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP62163358A priority Critical patent/JPS647875A/en
Publication of JPS647875A publication Critical patent/JPS647875A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To obtain a preferable reproducing video output signal by having the two different characteristics of a deemphasis circuit for a video signal and a synchronizing signal. CONSTITUTION:A video signal VOUT is obtained by using a synchronizing and separating circuit 23, a subtraction circuit 26, the deemphasis circuit A24, the deemphasis circuit B25 and an addition circuit 27. In the relation of the time constant Tt of the deemphasis circuit A24 for the synchronizing signal and the time constant Tp of the deemphasis circuit B25 for the video signal, when the Tp is the same as the time constant of the emphasis circuit 2 of a recording system, the Tt is selected to the time constant smaller than the Tp. Thereby, the deterioration in a dark clip generated based on the difference between a white clip level and the dark clip level is increased at the time of a reproducing, and completely restored.
JP62163358A 1987-06-30 1987-06-30 Reproducing circuit for magnetic recording and reproducing device Pending JPS647875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62163358A JPS647875A (en) 1987-06-30 1987-06-30 Reproducing circuit for magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163358A JPS647875A (en) 1987-06-30 1987-06-30 Reproducing circuit for magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS647875A true JPS647875A (en) 1989-01-11

Family

ID=15772364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163358A Pending JPS647875A (en) 1987-06-30 1987-06-30 Reproducing circuit for magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS647875A (en)

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