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:
Jun. 15, 2004
Filed:
Mar. 27, 2000
Applicant:
Inventors:
Koji Okada, Kasugai, JP;
Masao Iijima, Kasugai, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/10 ;
U.S. Cl.
CPC ...
H04B 1/10 ;
Abstract
A method of decoding a digital signal includes processing the digital using a delay operation in accordance with a frequency characteristic of 1+D, where D is an output signal of the delay element. The processed digital signal is then converted to a three level conversion signal (0, positive, negative). The conversion signal is then processed in accordance with a frequency of 1/(1+D) to generate a decoded signal. The conversion signal is also checked to determine if there is a conversion error. If a conversion error is detected, propagation of the error is restricted, such that a correct decoded signal is provided.