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:
Aug. 14, 2001
Filed:
Jun. 19, 1998
Hiromitsu Kimura, Tokyo, JP;
Shinichi Takahashi, Tokyo, JP;
Ikegami Tsushinki Co., Ltd., Tokyo, JP;
Abstract
An apparatus for performing a generator locking for a video signal including a first video processing circuit for processing an input video signal, an expansion module having a second video processing circuit and a delay circuit having a delay time introduced by said second video processing circuit, a synchronizing signal separating circuit for separating a synchronizing signal from an external reference signal, and a phase-lock loop circuit for generating a reference control signal for said first video processing circuit as well as a phase comparison signal. Said phase comparison signal is fed-back to the phase-lock loop circuit by means of said delay circuit. Although the expansion module is connected to the expansion slot, a phase of a finally obtained video signal is remained in a same fixed relationship as a phase relationship when a connection board is connected to the expansion slot.