Multi-level power amplifying circuitry for portable radio transceivers
CA 1264067 C · Owner: Motorola, Inc. · Inventors: Mitzlaff, James Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Unique multi-level power amplifying circuitry (120, 122, 140, 150) is described that may be advantageously utilized in duplex portable radio transceivers (100) which may be inserted into a vehicular adaptor (180) for operation from the vehicle battery (182). Upon detecting (204) the presence of the vehicular adaptor (180), the power amplifier (122) may be operated at a second set of power levels (208) which include levels greater than a first set of power levels (212) for portable operation. The multi-level power amplifying circuitry of the present invention may be advantageously utilized in a variety of applications where duplex battery-operated radio transceivers may be inserted into a …
Read the whole patent
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 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
- 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.