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:
Apr. 23, 2019
Filed:
Nov. 30, 2017
Shenzhen Goodix Technology Co., Ltd., Shenzhen, Guangdong, CN;
Shuo Fan, Guangdong, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
The present disclosure relates to a method for reducing power consumption, including: connecting one terminal of each capacitor in a first and a second capacitor array of an SAR ADC to a first reference voltage via a corresponding primary switch, connecting the other terminal of the capacitors to a positive-terminal analog input signal and a negative-terminal analog input signal respectively via a corresponding multiplexer to complete sampling; determining a value of a most-significant bit by comparing an output voltage of the first capacitor array with an output voltage of the second capacitor array, maintaining or adjusting a reference voltage connected to the other terminal of each capacitor according to the value of the most-significant bit, and determining values of a second-most-significant bit and a least-significant bit by comparing the output voltage of the first capacitor array with the output voltage of the second capacitor array.