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:
Mar. 23, 1999
Filed:
Aug. 08, 1996
Fujitsu Limited, Kanagawa, JP;
Abstract
A demultiplexer separates the data obtained by the demodulation into the data for each information medium, and a synchronous word detection state monitor detects the synchronous word contained in a received signal of a predetermined information medium and compares the state in which said synchronous word is detected with the preset standard, and outputs an output stop signal when the synchronous word detection state is worse then the preset standard. An error-correction decoder subjects the data obtained by the demodulation to an error-correction decoding processing, and an error-correction encoder subjects the decoded data to an error-correction encoding processing. A line quality estimating portion estimates the quality of the line by comparing the data obtained by the error-correction encoding processing with the demodulated data before decoding and an output controller stops outputting the received signal to the external terminal when the line quality is worse than the reference quality.