Title:
TIME-TO-DIGITAL CONVERSION CIRCUIT AND RELATED METHOD
Document Type and Number:
WIPO Patent Application WO/2020/186414
Kind Code:
A1
Abstract:
A time-to-digital conversion circuit (100) comprises a first oscillator (110), a second oscillator (120), a first counting circuit (130), a second counting circuit (140), a first conversion circuit (150), and a processing circuit (160). The first oscillator is activated by a first signal and comprises an oscillating unit having a first delay amount, and the first counting circuit is used for counting the number of changes of a first tail end output signal in the first oscillator and storing same as a first counting result; the second counting circuit is used for counting the number of oscillating units having changed output in the remaining oscillating units other than the first tail end oscillating unit and storing same as a second counting result; the first conversion circuit generates a first conversion signal according to the first counting result and the second counting result; the processing circuit generates an output signal at least according to the first conversion signal.
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Inventors:
HUANG YEN-YIN (CN)
Application Number:
PCT/CN2019/078448
Publication Date:
September 24, 2020
Filing Date:
March 18, 2019
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G04F10/00
Foreign References:
| CN109104190A | 2018-12-28 | |||
| CN108170018A | 2018-06-15 | |||
| CN106168753A | 2016-11-30 | |||
| CN106066599A | 2016-11-02 | |||
| CN106444344A | 2017-02-22 | |||
| US20150077279A1 | 2015-03-19 |
Other References:
See also references of EP 3828647A4
Attorney, Agent or Firm:
TIANTAI LAW FIRM (CN)
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