Title:
EARPHONE TESTING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/095025
Kind Code:
A1
Abstract:
Disclosed is an earphone testing circuit, comprising a decoding unit, a storage unit, a 3.5 mm jack adapted to be connected to a playback device, and a USB jack adapted to be connected to an earphone to be tested. The storage unit is configured to store a digital audio signal and send the digital audio signal to an earphone to be tested, which is connected to the USB jack, for playing; the decoding unit is configured to perform decoding processing on a digital voice signal sent by a microphone of the earphone to be tested by means of the USB jack to obtain an analog voice signal, and send the analog voice signal to the playback device by means of the 3.5 mm jack for playing. By means of the earphone testing circuit of the present invention, the performance of a loudspeaker and a microphone of an earphone with an USB interface can be tested, and the costs are low.
Inventors:
WANG JIANBO (CN)
CAO XINFANG (CN)
CAO XINFANG (CN)
Application Number:
PCT/CN2017/089225
Publication Date:
May 31, 2018
Filing Date:
June 20, 2017
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R29/00
Foreign References:
| CN106535077A | 2017-03-22 | |||
| CN105516872A | 2016-04-20 | |||
| CN101426167A | 2009-05-06 | |||
| CN106101971A | 2016-11-09 | |||
| US20140348334A1 | 2014-11-27 |
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (CN)
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