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:
Aug. 24, 2004
Filed:
Jan. 24, 2001
Colin D. Nayler, Sunnyvale, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A circuit for demodulating a modulated carrier includes a sampler receiving the modulated carrier signal and generating a digital carrier signal represented by a sequence of sample values in accordance with a clock signal at a first sampling frequency. A complex mixer frequency shifts the digital carrier signal by a frequency equal to one fourth the sampling frequency to generate a frequency shifted data signal with a sampling rate at the first sampling frequency. A decimation circuit generates four decimated signals from the frequency shifted signal, each at a decimated sampling rate. A resampling circuit generates a data signal at the decimated sampling rate and at a phase independent of the clock signal.