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:
Mar. 09, 2010
Filed:
Mar. 08, 2006
Aly Ismail, Irvine, CA (US);
Janakan Sivasubramaniam, Irvine, CA (US);
Edward Youssoufian, Irvine, CA (US);
Nabil Yousef, Foothill Ranch, CA (US);
Frank Carr, New Coast, CA (US);
Aly Ismail, Irvine, CA (US);
Janakan Sivasubramaniam, Irvine, CA (US);
Edward Youssoufian, Irvine, CA (US);
Nabil Yousef, Foothill Ranch, CA (US);
Frank Carr, New Coast, CA (US);
Newport Media, Inc., Lake Forest, CA (US);
Abstract
Digital autonomous AGC for a DVB-H receiver comprises detecting a plurality of RF signals entering a LNA in the DVB-H receiver; detecting a RF transmitter blocker signal occurring at the LNA; and differentiating between a desired RF signal and an undesired RF transmitter blocker signal by varying a differential gain of current through the LNA. A RF servo loop is used for detecting the RF transmitter blocker signal. Logic circuitry of the RF servo loop is integrated with a baseband AGC loop to step control the differential gain of current through the LNA. A RF wideband detector is used for detecting the plurality of RF signals entering the LNA; and sending a voltage output corresponding to voltage levels of the RF signals to a plurality of comparators, wherein each of the plurality of comparators are set at a different programmable voltage threshold level compared with one another.