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:
Oct. 20, 1998
Filed:
Dec. 03, 1996
Masayuki Omori, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A horizontal synchronous circuit comprises a horizontal oscillator, an AFC portion operative to compare in phase a horizontal oscillation output signal from the horizontal oscillator with a horizontal synchronizing signal from the outside to produce a comparison output signal and to supply the horizontal oscillator with a control signal based on the comparison output signal for controlling a frequency of the horizontal oscillation output signal, a free-running frequency controller operative to produce a control signal corresponding to a frequency of the horizontal synchronizing signal from the outside and to supply the horizontal oscillator with the control signal for controlling a free-running frequency of the horizontal oscillator to be coincident with the frequency of the horizontal synchronizing signal from the outside, and a negative feedback control portion operative to produce an additional control signal based on the comparison output signal obtained from the AFC portion or the control signal supplied to the horizontal oscillator and to control the free-running frequency of the horizontal oscillator to vary in response to the additional control signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile