Two-way radio having a phased locked loop
CA 1296064 C · Owner: Motorola, Inc. · Inventors: Enderby, Ralph Thomas; Hansen, Kenneth Adolph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to radio transceivers. In particular, it relates to a method and means of using a fully synchronized programmable counter with a near 50% duty cycle output signal as a frequency divider to provide electronic bandswitching as well as channel frequency selection for a transmitter and receiver path in a radio transceiver. BACKGROUND OF THE INVENTION Two-way radio communications are generally carried out using an associated pair of frequencies within one or
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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 February 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 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.