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:
Dec. 23, 1997
Filed:
Feb. 20, 1996
Applicant:
Inventors:
Hironori Deguchi, Kadoma, JP;
Toshiyuki Shimada, Kobe, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
371 30 ; 341 59 ; 341 94 ;
Abstract
A data detection apparatus retrieved binary data modulated in conformity with the (d, k) constraint from an analog signal includes a timing extracting unit for generating a timing signal representing the timing at which the analog signal crosses the threshold value, a clock generating unit for generating a clock signal having a cycle corresponding to one bit of the binary data from the timing signal, a timing position detector for detecting the position in the cycle of the timing, and an error correcting unit for correcting an error in the binary data in accordance with the detected position.