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:
May. 24, 2011
Filed:
Aug. 09, 2009
Tse-chi Lin, Taipei County, TW;
Yu-hsuan Tu, Tainan, TW;
Chang-shun Liu, Taipei, TW;
Kang-wei Hsueh, Hsinchu, TW;
Tse-Chi Lin, Taipei County, TW;
Yu-Hsuan Tu, Tainan, TW;
Chang-Shun Liu, Taipei, TW;
Kang-Wei Hsueh, Hsinchu, TW;
Mediatek, Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
A delta-sigma analog-to-digital conversion apparatus for receiving an analog input signal to generate a digital output signal includes a subtracting unit, a quantizer, and a feedback unit. The subtracting unit is utilized for performing a subtraction function to generate a subtracted signal according to the analog input signal and a feedback signal. The quantizer is coupled to the subtracting unit and utilized for performing quantization to generate a quantized signal according to the subtracted signal. The feedback unit is coupled between the subtracting unit and the quantizer, and utilized for providing the feedback signal to the subtracting unit according to the quantized signal. The subtracting unit is arranged to reduce signal input swing of the quantizer.