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1. (WO2018076628) USB INTERFACE CIRCUIT, TERMINAL, HEADSET CIRCUIT AND HEADSET, AND STORAGE MEDIUM

Pub. No.:    WO/2018/076628    International Application No.:    PCT/CN2017/081045
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Apr 20 01:59:59 CEST 2017
IPC: H01R 13/66
H01R 13/70
H04R 1/10
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: WEI, Guohua
魏国华
QU, Bo
屈波
LIU, Shiwei
刘世伟
Title: USB INTERFACE CIRCUIT, TERMINAL, HEADSET CIRCUIT AND HEADSET, AND STORAGE MEDIUM
Abstract:
A USB interface circuit, a terminal, a headset circuit, a headset, and a storage medium, the USB interface circuit (1) comprising: a first USB interface (11); an analog circuit switch (12) connected to the first USB interface (11); a codec module (13) and a USB module (14); when the analog circuit switch (12) detects that the first USB interface (11) is not inserted with a USB headset, the analog circuit switch (12) being connected to the USB module (14); when the codec module (13) detects that no USB headset has been inserted into the first USB interface (11), the analog circuit switch (12) being connected to the codec module (13); and the codec module (13) being connected to the first USB interface (11) by means of a pull-up resistor (15). By adding the analog circuit switch (12) into the USB interface circuit (1), there is no need to improve the circuit inside the headset device, and it is only necessary to change the interface of the headset device to a Micro USB interface or a Type-C USB interface, reducing the cost of the headset, and also being able to achieve high audio fidelity and high device compatibility.