Title:
DETECTION CIRCUIT AND DETECTION METHOD FOR ON-THE-GO DEVICE, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2018/094894
Kind Code:
A1
Abstract:
A detection circuit and detection method for an On-The-Go device, and a terminal, for solving the problem of an inaccurate detection result existing in existing OTG device detection solutions. The detection circuit comprises: a detection unit, a detection terminal and a detection chip, wherein the detection unit comprises a voltage source and a first resistor connected in series, the voltage source is used for generating a first voltage, and the first resistor is used for dividing the first voltage so as to obtain a second voltage; the detection terminal is connected to an external device and the detection unit and is used for providing a connection interface between the detection circuit and the external device; and the detection chip is connected to the first resistor and is used for determining, when the second voltage is less than a set voltage, that the external device is an OTG device.
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Inventors:
ZHANG LIANG (CN)
WANG CHAO (CN)
XU BO (CN)
WANG CHAO (CN)
XU BO (CN)
Application Number:
PCT/CN2017/074988
Publication Date:
May 31, 2018
Filing Date:
February 27, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F13/38
Foreign References:
| CN101221546A | 2008-07-16 | |||
| CN105301386A | 2016-02-03 | |||
| CN103186483A | 2013-07-03 | |||
| US20060076977A1 | 2006-04-13 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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