InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,502,600
Kazakevich , et al. March 10, 2009

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Dynamic bias for RF power amplifiers


Abstract
A method for wireless communication that dynamically adjusts RF amplifier operating bias for the subscriber unit's transmitter in response to a power control signal. The invention provides high-efficiency RF power amplification for applications where the available power source is limited. The invention uses a power control signal resident in wireless communication system architectures with a detector and voltage to current converter to arrive at a dynamic amplifier operating bias.


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Inventors: Kazakevich; Leonid (Plainview, NY), Cabrol; Patrick (Bayshore, NY)
Assignee: Interdigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/368,802
Filed: March 6, 2006

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
10722941 Nov., 2003 7010282
09773857 Feb., 2001 6684064
60192528 Mar., 2000


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Current U.S. Class: 455/126 ; 455/127.1; 455/127.2; 455/127.3; 455/522
Current International Class: H04B 1/04 (20060101)
Field of Search: 455/126