The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 1993
Filed:
Mar. 07, 1990
Nobufumi Nakagaki, Tokyo, JP;
Toshiyuki Kurita, Yokohama, JP;
Toshinori Murata, Yokohama, JP;
Kazuhiro Kaizaki, Yokohama, JP;
Sadao Kubota, Yokohama, JP;
Masanori Kamiya, Yokohama, JP;
Hiroshi Sekiya, Yokohama, JP;
Kenichi Fujiwara, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Video Engineering, Inc., Yokohama, JP;
Abstract
In a television receiver in which scanning for an incoming video signal is performed at a frequency n times as high as the input horizontal synchronous frequency by suitably controlling writing and reading on its video memory, the signals for writing and reading on the video memory unit are generated by a horizontal synchronization/deflection circuit. The horizontal synchronization/deflection circuit is arranged by having a clock generation/synchronous deflection circuit for generating reference signals to control the writing and reading on the video memory unit provided with a phase comparator such that a horizontal drive signal to drive a horizontal deflection circuit and a flyback pulse are brought in phase.