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:
Feb. 24, 1987
Filed:
Oct. 05, 1984
Toshitake Kouyama, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A television synchronizing apparatus for synchronizing an input television signal to a reference television signal. The input and output television signals are of the type which include several signal components including a video signal, a color subcarrier signal and a horizontal sync signal. The input television signal is stored in a memory at locations thereof which are determined by write-in memory addresses which are produced in synchronism with the input television signal. The input television signal is read-out or retrieved from the memory under the control of read out addresses which are produced in synchronism with the reference television signal. A control circuit controls the generation of the read-out addresses so that with reference to the composite television signal which is retrieved from the memory, the absolute value of the phase shift between the video signal and the horizontal sync signal of the composite television signal is not greater than one-half the period of the color subcarrier signal under all circumstances.