Portable radio apparatus having battery saved channel scanning function
CA 1319958 C · Owner: Maru, Tsuguo · Inventors: Maru, Tsuguo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable radio apparatus comprises a receiving section capable of being tuned to any of a plurality of channels, a switch circuit for controlling supply of power from ? battery to the receiving section and a detector circuit for detecting strength of electric fields which are developed on said channels. A control section is connected to said receiving section and the switch circuit and constructed such that, in response to an output of said detector circuit, the control section executes channel scanning for tuning the receiving section sequentially to the channels while, at this instant controlling said switch circuit to feed power continuously to the receiving section and, when no data …
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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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 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.