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:
Dec. 11, 1990
Filed:
Mar. 21, 1988
Applicant:
Inventors:
Kenji Takanashi, Kanagawa, JP;
Yoshiaki Wakisaka, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358339 ; 358314 ; 360 362 ;
Abstract
In a time base correcting apparatus in which incoming video signals are written into a memory by write clock signals modulated by time base errors and the written video signals are read from the memory by read clock signals modulated by the velocity errors; the write clock signals and the read clock signals have different frequencies and fluctuations in the sampling positions due to the frequency differential between the write clock signals and the read clock signals are corrected by the phase modulation of the read clock signals.