Title:
SIGNAL PROCESSING CIRCUIT AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/142205
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present application is a signal processing circuit. The signal processing circuit comprises an analog circuit. The analog circuit is configured to process an initial signal received by the analog circuit, the initial signal comprising a target signal and a noise signal. The analog circuit comprises a first processing circuit and a second processing circuit connected to the first processing circuit. The first processing circuit is configured to increase a ratio between the target signal and the noise signal, and output a first processing signal. The second processing circuit is configured to amplify the first processing signal, and a gain factor of the first processing signal made by the second processing circuit changes along with a frequency change of the first processing signal. The first processing circuit comprises a common-mode signal suppression circuit, a low pass filter circuit, and a high pass filter circuit. The common-mode signal suppression circuit is configured to suppress a common-mode signal in the initial signal.
Inventors:
ZHOU XIN (CN)
SU LEI (CN)
ZHANG YUXIANG (CN)
LI MEIQI (CN)
LIAO FENGYUN (CN)
QI XIN (CN)
SU LEI (CN)
ZHANG YUXIANG (CN)
LI MEIQI (CN)
LIAO FENGYUN (CN)
QI XIN (CN)
Application Number:
PCT/CN2021/102851
Publication Date:
July 07, 2022
Filing Date:
June 28, 2021
Export Citation:
Assignee:
SHENZHEN SHOKZ CO LTD (CN)
International Classes:
H04B13/00
Foreign References:
| CN106419880A | 2017-02-22 | |||
| CN105125211A | 2015-12-09 | |||
| CN106416102A | 2017-02-15 | |||
| CN104905767A | 2015-09-16 | |||
| US20200028532A1 | 2020-01-23 |
Other References:
See also references of EP 4203345A4
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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