Title:
SIGNAL GENERATING CIRCUIT, RELATED CHIP, FLOW METER, AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/147094
Kind Code:
A1
Abstract:
Disclosed is a signal generating circuit (100), which is used for generating an emission signal to trigger a first transducer to generate a first transducer output signal. The signal generating circuit comprises: a signal generating unit (106) for generating a transmission signal; and an emitter (104), which is coupled to the signal generating unit and used for converting the transmission signal into the emission signal, wherein the emission signal comprises a data signal and a compensation signal. The data signal at least comprises a first pulse wave, and the compensation signal at least comprises a second pulse wave. The phases of the first pulse wave and the second pulse wave are opposite, and the first pulse wave and the second pulse wave have other different waveform parameters. The present application further provides a related chip, a flow meter, and a method.
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Inventors:
CHANG JUNG-YU (CN)
Application Number:
PCT/CN2019/072261
Publication Date:
July 23, 2020
Filing Date:
January 18, 2019
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03K5/08; G01F1/00
Foreign References:
| CN108061895A | 2018-05-22 | |||
| CN106908777A | 2017-06-30 | |||
| CN101988965A | 2011-03-23 | |||
| CN103580682A | 2014-02-12 | |||
| EP3109664A1 | 2016-12-28 |
Other References:
See also references of EP 3731411A4
Attorney, Agent or Firm:
TIANTAI LAW FIRM (CN)
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