Paging receiver having battery saving circuit
CA 1316220 C · Owner: Oyagi, Takashi · Inventors: Oyagi, Takashi; Sato, Toshifumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A paging receiver includes a receiving section for receiving a paging signal which includes a preamble signal a, synchronization codeword and an address codeword. A switch controls power supply to the receiving section in response to a control signal. The preamble signal is detected to produce a preamble detect signal, the synchronization codeword is detected to produce a synchronization codeword detect pulse and the, address codeword is detected to produce an address codeword detect pulse. An error detector detects an error in the address codeword and produces an error detect pulse when the number of errors detected is greater than a predetermined value. A controller, in a waiting mode, …
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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
- 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.