Modem with improved digital signal processor
CA 1311281 C · Owner: Tjahjadi, Taruna · Inventors: Tjahjadi, Taruna; Nash, Randy D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
MODEM WITH IMPROVED DIGITAL SIGNAL PROCESSOR" Abstract, A modem with an improved digital signal processor is described. A first processor (12) controls the overall operation of the modem and communicates with an external device (not shown) through a connector (10). A second processor (34) performs signal processing on both transmitted and received data signals in a manner which saves both time and memory space. The processes which are described comprise a 2400 bit per second handshake signal detector, a fast linear-to-mu law converter the transmitter signal generator, a fast-acting nonlinear automatic gain control, a jitter-free transmitter phase-locked loop, a baud clock timing recovery …
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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 December 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 2009.
- 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
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.