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:
May. 30, 2000
Filed:
Nov. 20, 1997
Applicant:
Inventors:
Masato Fuma, Aichi, JP;
Miyuki Okamoto, Gifu, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 47 ; 369 59 ;
Abstract
A synchronous circuit which detects a detection synchronizing signal generated from a reproduction signal in a detecting window having a prescribed time width, and in a detecting window having a prescribed time width, and generates a frame synchronizing signal. The synchronous circuit includes a counter for counting how many times detection synchronizing signals are not consecutively detected, and a detecting window width determining unit for increasing the time width of the detecting window if, as a result of comparison between a value counted by the counter and a prescribed value set in advance, the counted value reaches the prescribed value.