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:
Apr. 04, 2006
Filed:
May. 31, 2002
Steven C. Ciccarelli, Encinitas, CA (US);
Arun Raghupathy, San Diego, CA (US);
Steven C. Ciccarelli, Encinitas, CA (US);
Arun Raghupathy, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An AMPS receiver system utilizing a ZIF architecture and processing received forward link signals in the digital domain. The AMPS receiver system includes an antenna (), a direct converter (), high dynamic A/D converters (), low pass filters (), a phase shifter (), a digital VGA (), a digital FM demodulator (), an accumulator () and a controller (). The direct converter () further includes a low noise amplifier (), a splitter (), mixers () and low pass filters (). The controller () adjusts the gains of the low noise amplifier () and the digital VGA () based on the average power of the signal outputted by the digital VGA ().