公开(公告)号：US20150032909A1

公开(公告)日：2015-01-29

申请号：US14337904

申请日：2014-07-22

Applicant: QUALCOMM Incorporated

Inventor： Terrence Brian Remple ,  Devdutt Patnaik ,  Jay Yu Jae Choi ,  Yanru Li

IPC: G06F13/38

CPC classification number: G06F13/385 ,  G06F13/4291

Abstract: A method of triggering a desired operating mode in a universal serial bus (USB)-compatible client device is provided. A USB-compatible client device detects that it has been coupled to a USB-compatible host device via a USB bus. The USB-compatible client device attempts to pull a data line of the USB bus high. The USB-compatible client device then ascertains that the data line remains pulled low, thereby indicating that the USB-compatible client device should enter a first mode of operation. The USB-compatible client device operates according to the first mode of operation.

Abstract translation: 提供了一种在通用串行总线（USB）兼容客户端设备中触发所需操作模式的方法。 USB兼容的客户端设备通过USB总线检测到它已经耦合到与USB兼容的主机设备。 USB兼容客户端设备尝试将USB总线的数据线拉高。 USB兼容的客户端设备然后确定数据线保持拉低，从而指示USB兼容的客户端设备应该进入第一操作模式。 USB兼容客户端设备根据第一种操作模式进行操作。

公开(公告)号：US20150032908A1

公开(公告)日：2015-01-29

申请号：US14337844

申请日：2014-07-22

Applicant: QUALCOMM Incorporated

Inventor： Terrence Brian Remple ,  Devdutt Patnaik ,  Jay Yu Jae Choi ,  Yanru Li

IPC: G06F13/38 ,  H04L9/08

CPC classification number: G06F13/385 ,  G06F13/4291 ,  G06F2213/0042 ,  G06F2213/3854 ,  H04L9/0838

Abstract: A method of triggering a desired operating mode in a universal serial bus (USB)-compatible client device is provided. A USB-compatible client device detects that it has been coupled to a USB-compatible host device via a USB bus. The USB-compatible client device attempts to pull a data line of the USB bus high. The USB-compatible client device then ascertains that the data line remains pulled low, thereby indicating that the USB-compatible client device should enter a first mode of operation. The USB-compatible client device operates according to the first mode of operation.