Title:
METHOD FOR MULTIPLE ANALOG-TO-DIGITAL CONVERSION
Document Type and Number:
WIPO Patent Application WO/2021/007843
Kind Code:
A1
Abstract:
Provided is a method for multiple analog-to-digital conversion by an analog-to-digital convertor (ADC), comprising: receiving a first ramp reference signal whose level changes along a slope from an initial level during each period of the first ramp reference signal, and a second ramp reference signal whose level tracks the first ramp reference signal with a given offset from the level of the first ramp reference signal; comparing the second ramp reference signal with an input analog signal; sampling a level of the first ramp reference signal when the second ramp reference signal reaches the analog input signal, and resetting a level of the second ramp reference signal to the level sampled from the first ramp reference signal after the sampling; and generating a digital signal based on results of the comparing, where the comparing, the sampling and the resetting are performed multiple times in said each period of the first ramp reference signal, and the comparing after the resetting is performed by using the reset second ramp reference signal.
Inventors:
SAKURAGI TAKAMASA (JP)
Application Number:
PCT/CN2019/096508
Publication Date:
January 21, 2021
Filing Date:
July 18, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03M1/36
Foreign References:
| US8816893B1 | 2014-08-26 | |||
| US20190036540A1 | 2019-01-31 | |||
| US20140361916A1 | 2014-12-11 | |||
| US20120098990A1 | 2012-04-26 | |||
| US20140062735A1 | 2014-03-06 | |||
| US20150138005A1 | 2015-05-21 |
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