Invention Grant
- Patent Title: Dynamic tracking nonlinearity correction
- Patent Title (中): 动态跟踪非线性校正
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Application No.: US15057609Application Date: 2016-03-01
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Publication No.: US09559713B1Publication Date: 2017-01-31
- Inventor: Rong Wu , Tianwei Li
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Brinks Gilson & Lione
- Main IPC: H03M1/00
- IPC: H03M1/00 ; H03M1/12 ; H03M1/06

Abstract:
An analog-to-digital converter (ADC) is used for dynamic tracking nonlinearity correction. The correction employs an analog sampling technique to determine the signal derivative by measuring the derivative current arising from sampling an analog input signal undergoing analog-to-digital conversion, at the sampling instant. The analog derivative sampling technique achieves significant reduction in power consumption with less complexity compared with a digital approach, with strong improvements in HD3, SDFR, and IM3 measures.
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