The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Jul. 23, 2010
Wen-yen Chan, Waterloo, CA;
Nasserullah Khan, Waterloo, CA;
Ian Ka Yin Chung, Kitchener, CA;
Hamza Mohaimeen Bari, Montreal, CA;
Wen-Yen Chan, Waterloo, CA;
Nasserullah Khan, Waterloo, CA;
Ian Ka Yin Chung, Kitchener, CA;
Hamza Mohaimeen Bari, Montreal, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
Various embodiments described herein relate to a power management block and one or more amplification blocks used in the transmitter of a communication subsystem. The power management block provides improved control for the gain control signal provided to a pre-amplifier and the supply voltage provided to a power amplifier, both of which are included in a selected one of the amplification blocks. The power expended by the power amplifier is optimized by employing a continuous control method in which one or more feedback loops are employed to take into account various characteristics of the transmitter components and control values. Post power amplifier transmission power is detected for input into the one or more feedback loops executed in the power management block. A controller for the power amplifier is design to stabilize the system with respect to gain expansion in the power amplifier.