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Patent Searching and Data


Title:
DIGITAL AUDIO SIGNAL SAMPLING FREQUENCY DETECTION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/143521
Kind Code:
A1
Abstract:
A digital audio signal sampling frequency detection method and device. The method comprises: by means of a reference clock signal and a sampling rate clock signal of a digital audio signal, detecting the sampling frequency of the digital audio signal; when it is detected that the sampling frequency of the digital audio signal is not matched with a preset theoretical sampling frequency, outputting a detection result, so that software can adjust the sampling frequency of the digital audio signal timely or adjust the theoretical sampling frequency, thereby realizing the effect of preventing the phenomenon that an audio amplifier chip is damaged when the software configures the sampling frequency incorrectly.

Inventors:
JIANG SONGYING (CN)
YAO WEI (CN)
GUAN SHAOJUN (CN)
Application Number:
PCT/CN2020/070061
Publication Date:
July 16, 2020
Filing Date:
January 02, 2020
Export Citation:
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Assignee:
SHANGHAI AWINIC TECHNOLOGY CO LTD (CN)
International Classes:
G01R23/10; G01R23/15
Foreign References:
CN109459612A2019-03-12
CN209356576U2019-09-06
CN102621384A2012-08-01
CN106597096A2017-04-26
CN104115403A2014-10-22
CN1355434A2002-06-26
CN103698602A2014-04-02
US20100295535A12010-11-25
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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