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:
Nov. 29, 2022
Filed:
Sep. 15, 2021
Global Unichip Corporation, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
GLOBAL UNICHIP CORPORATION, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
An analog to digital converter (ADC) device includes ADC circuits, a calibration circuit and a skew adjusting circuit. The ADC circuits convert an input signal according to clock signals, to generate first quantized outputs. The calibration circuit calibrates the first quantized outputs to generate second quantized outputs. The skew adjusting circuit includes an estimating circuit and a feedback circuit. The estimating circuit analyzes the second quantized outputs to generate detection signals, wherein the detection signals are related to time difference information of the clock signals. The skew adjusting circuit outputs the detection signals as adjustment signals, wherein the adjustment signals are configured to reduce a clock skew of the ADC circuits. The feedback circuit analyzes the detection signals generated by the estimating circuit, to generate a feedback signal to the estimating circuit, wherein the estimating circuit is configured to adjust the detection signals according to the feedback signal.