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:
Apr. 16, 2002
Filed:
Aug. 07, 1995
Applicant:
Inventor:
Shinichi Yamashita, Kanagawa-ken, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/923 ; H04N 5/931 ;
U.S. Cl.
CPC ...
H04N 5/923 ; H04N 5/931 ;
Abstract
A device is arranged to detect the level of an input digital signal by detecting a specific pattern from the input digital signal and to control the level of the input digital signal according to a result of the level detection. The arrangement enables the device to accurately detect the amplitude of a reproduced signal obtained at the detecting point of data which has the specific pattern, to keep the level of the reproduced signal unvarying at the data detecting point and to lessen errors of reproduced data.