CN109478176A - 一种USB Type-C端口设备识别对端设备的方法、装置和系统 - Google Patents

一种USB Type-C端口设备识别对端设备的方法、装置和系统 Download PDF

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CN109478176A
CN109478176A CN201680084473.1A CN201680084473A CN109478176A CN 109478176 A CN109478176 A CN 109478176A CN 201680084473 A CN201680084473 A CN 201680084473A CN 109478176 A CN109478176 A CN 109478176A
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pin
voltage
usb type
port device
high level
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CN109478176B (zh
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许仲杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation

Abstract

本发明实施例涉及一种USB Type‑C端口设备识别对端设备的方法，所述USB Type‑C端口设备的Type‑C端口包括配置通道(configuration channel)CC管脚和VBUS管脚，所述方法具体包括：所述USB Type‑C端口设备检测所述CC管脚的电压和所述VBUS管脚的电压；判断所述CC管脚的电压变为稳定的中间电平和VBUS管脚上出现高电平的时间顺序；当所述CC管脚的电压变为稳定的中间电平的同时所述VBUS管脚上出现高电平，则确定所述对端设备是USB Type‑A端口设备；当所述CC管脚的电压变为稳定的中间电平早于所述VBUS管脚上出现高电平，则确定所述对端设备不是USB Type‑A端口设备。因此USB Type‑C端口设备可以识别对端连接的设备是否是USB Type‑A端口设备。

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PCT国内申请，说明书已公开。

Claims (25)

  1. PCT国内申请，权利要求书已公开。
CN201680084473.1A 2016-04-12 2016-04-12 一种USB Type-C端口设备识别对端设备的方法、装置和系统 Active CN109478176B (zh)

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PCT/CN2016/079076 WO2017177377A1 (zh) 2016-04-12 2016-04-12 一种USB Type-C端口设备识别对端设备的方法、装置和系统

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CN110377545A (zh) * 2019-06-12 2019-10-25 苏州佳世达电通有限公司 双重用途埠的判断方法及其系统
CN111697663A (zh) * 2020-06-29 2020-09-22 维沃移动通信有限公司 充电电路与充电线缆
CN111817378A (zh) * 2020-07-14 2020-10-23 维沃移动通信有限公司 充电器、数据线和充电设备
CN112380080A (zh) * 2020-12-02 2021-02-19 深圳慧能泰半导体科技有限公司 一种usb设备检测系统及方法

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CN108123830B (zh) * 2017-12-15 2021-02-26 新华三技术有限公司 一种端口状态控制方法及装置
JP7072382B2 (ja) * 2017-12-28 2022-05-20 キヤノン株式会社 電子機器、制御方法およびプログラム
WO2020024116A1 (zh) * 2018-07-31 2020-02-06 华为技术有限公司 一种接口配置方法、终端设备及接口
CN111817385B (zh) * 2020-07-14 2022-04-15 维沃移动通信有限公司 充电器、数据线和充电设备

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US7606955B1 (en) * 2003-09-15 2009-10-20 National Semiconductor Corporation Single wire bus for connecting devices and methods of operating the same
CN104978296A (zh) * 2014-04-09 2015-10-14 诺基亚公司 用于确定功率输送的方向的方法和装置
CN104573468A (zh) * 2015-01-30 2015-04-29 北京世纪龙脉科技有限公司 一种单核多usb接口的安全认证设备
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110377545A (zh) * 2019-06-12 2019-10-25 苏州佳世达电通有限公司 双重用途埠的判断方法及其系统
CN111697663A (zh) * 2020-06-29 2020-09-22 维沃移动通信有限公司 充电电路与充电线缆
CN111697663B (zh) * 2020-06-29 2022-02-08 维沃移动通信有限公司 充电电路与充电线缆
CN111817378A (zh) * 2020-07-14 2020-10-23 维沃移动通信有限公司 充电器、数据线和充电设备
CN111817378B (zh) * 2020-07-14 2022-04-01 维沃移动通信有限公司 充电器、数据线和充电设备
CN112380080A (zh) * 2020-12-02 2021-02-19 深圳慧能泰半导体科技有限公司 一种usb设备检测系统及方法
CN112380080B (zh) * 2020-12-02 2021-06-08 深圳慧能泰半导体科技有限公司 一种usb设备检测系统及方法

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WO2017177377A1 (zh) 2017-10-19
CN109478176B (zh) 2020-12-08

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