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. 14, 2001
Filed:
Nov. 17, 1999
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A local nonlinear feedback loop (LNFL) technique and a sigma-delta modulator (SDM) for promoting highly stable oversampling using the LNFL technique. Not only can gain mismatch of the sigma-delta modulator be minimized, but the overload of the later stage sigma-delta modulator can also be resolved without sacrificing the signal noise ratios (SNR) of the overall system. Moreover, using the local nonlinear feedback loop technique of this invention attenuates the voltage signal of the sigma-delta modulator, therefore decreasing the power consumption of the overall sigma-delta modulator system.
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