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.)
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.)
Hitachi Denshi KK
Japan Broadcasting Corp
Original Assignee
Hitachi Denshi KK
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Hitachi Denshi KK, Nippon Hoso Kyokai NHK, Japan Broadcasting CorpfiledCriticalHitachi Denshi KK
Priority to JP9420477ApriorityCriticalpatent/JPS5428524A/en
Publication of JPS5428524ApublicationCriticalpatent/JPS5428524A/en
PURPOSE: To improve the SN ratio and thus to correct the color shading for the color magnetic recorder/reproducer, by locking the pilot frequency to 5/4 burst signal frequency of the video signal and setting up the FM carrier frequency to the prescribed value.
COPYRIGHT: (C)1979,JPO&Japio
JP9420477A1977-08-081977-08-08Color shading correction system by pilot signal
PendingJPS5428524A
(en)