Digital communication system using partial response and bipolar coding techniques
CA 1332452 C · Owner: Hirosaki, Botaro · Inventors: Yoshida, Toshihisa; Tsujimura, Yasuhiro; Shimizu, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital communication system comprises a transmitter including a (1,0,-1) precoder for precoding a unipolar input digital data stream and a bipolar converter for converting the output signal of the (1,0,-1) 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, and a line egualization 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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 11, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 11, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.