Power amplifier for a radio frequency signal
CA 1317648 C · Owner: Motorola, Inc. · Inventors: Schuler, Joseph John; Jensen, Ole Hedevang; Little, Richard I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Power Amplifier for a Radio Frequency Signal A power amplifier is provided for amplifying a radio frequency signal such as, in a burst modulation manner for use in GSM cellular radio The amplifier has means such, as a ROM (16), for producing a predetermined sequence of values in response to a control pulse. Means (21) are provided for converting each value into a power control signal and, control means (9) are provided for controlling the amplifier output power in accordance with said power control signal. In this manner the power/time characteristic can be made to take the form of a raised cosine. The invention also provides power selection means for selecting a nominal output level from 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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 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.