APPARATUS AND METHOD OF DC OFFSET CORRECTION FOR A RECEIVER

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 (4...

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Bibliographic Details
Main Authors FELDT, DANIEL C, RABE, DUANE C
Format Patent
LanguageEnglish
French
Published 18.03.1997
Edition6
Subjects
BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary: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.
Bibliography:Application Number: CA19912071551