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. 03, 1992
Filed:
Aug. 22, 1988
Botaro Hirosaki, Tokyo, JP;
Hiroshi Shimizu, Tokyo, JP;
Yasuhiro Tsujimura, Tokyo, JP;
Toshihisa Yoshida, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A digital communication system comprises a transmitter including a (1,0) precoder for precoding a unipolar input digital data stream and a bipolar converter for converting the output signal of the (1,0) precoder into a bipolar signal. The bipolar signal is transmitted through a metallic transmission line to a receiver. The receiver comprises a digitizer for digitizing the transmitted signal to and a line equalization filter for equalizing losses encountered during propagation through the transmission line. A (1,1) converter is provided for converting the output signal of the line equalization filter in a manner opposite to the bipolar converter. A clock recovery circuit derives sample timing pulses from the output of the line equalization filter. A decoder responds to the sample timing pulses to detect symbols from the output signal of the (1,1) converter to generate a replica of the original digital data stream.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile