Apparatus and method of dc offset correction for a receiver

Details Apparatus and method of dc offset correction for a receiver Apparatus and method of dc offset correction for a receiver

H - Electricity

04

B

H04B 1/16 (2006.01) H03D 3/00 (2006.01) H04B 1/10 (2006.01) H04B 1/30 (2006.01) H04L 25/06 (2006.01) H04L 27/22 (2006.01) H04L 27/233 (2006.01)

Patent

CA 2071551

A radio receiver having at least two operational states and including a variable gain amplifier and at least two adaptive DC offset compensators (421, 427) to suppress undesired DC offset. The first operational state of the radio receiver (121 ) adjusts the adaptive DC offset compensator circuits (421, 427) to appropriate output levels in absence of an input signal to the radio receiver (121). The second operational state receives the input signal through the radio receiver (121) and eliminates the undesired DC offset (309) from the received input signal with the adaptive DC offset compensator circuits (421, 427) and allows the received input signals to be processed.

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