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. 23, 2004
Filed:
Oct. 10, 2002
Juinn-Yan Chen, Fremont, CA (US);
Faraday Technology Corp., Hsinchu, TW;
Abstract
A sigma-delta modulator. The sigma-delta modulator comprises an integrator, a first quantizer, a dither generator and an adding device. An input terminal of the first quantizer and an input terminal of the dither generator are coupled to an output terminal of the integrator. The first quantizer generates a first random signal. The dither generator comprises a second quantizer for generating a second random signal, an input terminal thereof coupling to the output of the integrator; a random sequencer for receiving the first random signal and the second random signal to produce a third random signal output; and an attenuator for attenuating the third random signal to produce a dither signal to output. The dither signal is added to an input terminal of the integrator by the adding device.