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:
Jul. 24, 2012
Filed:
Sep. 28, 2010
Fang-shi Jordan Lai, Chia Yi, TW;
Hsu-feng Hsueh, Tainan, TW;
Cheng Yen Weng, Hsinchu, TW;
Yung-fu Lin, Hsinchu, TW;
Manoj M. Mhala, Hsinchu, TW;
Tao Wen Chung, Zhubei, TW;
Chin-hao Chang, Hsinchu, TW;
Fang-Shi Jordan Lai, Chia Yi, TW;
Hsu-Feng Hsueh, Tainan, TW;
Cheng Yen Weng, Hsinchu, TW;
Yung-Fu Lin, Hsinchu, TW;
Manoj M. Mhala, Hsinchu, TW;
Tao Wen Chung, Zhubei, TW;
Chin-Hao Chang, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
In a method of converting an analog signal to digital format, an analog input signal is received and processed using sigma-delta modulation to provide a first digital signal that represents the analog input signal in digital format and to provide a second digital signal that represents a first error introduced during the sigma-delta modulation. A second error that is error introduced during the sigma-delta modulation is estimated. A pre-correction signal is determined based on the first and second digital signals. A difference between the estimated second error and the pre-correction digital signal is determined to provide a digital output signal representing the analog input signal in digital format. An error correction element operable to adjust the digital output signal based on the analog input signal, the digital output signal, and the second digital signal is controlled.