Invention Grant
- Patent Title: Power saving during a connection detection
- Patent Title (中): 连接检测期间省电
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Application No.: US14167000Application Date: 2014-01-29
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Publication No.: US09465424B2Publication Date: 2016-10-11
- Inventor: Cheng Zhong , Nam Van Dang , Hung Q. Vuong , Xiaohua Kong
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Alan Gordon; Kenneth Vu
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/16 ; G06F1/32

Abstract:
In a particular embodiment, an electronic device includes a direct current (DC) voltage source coupled to a DC interface. The electronic device includes a receiver sense circuit configured to detect a connection of the electronic device to a sink device via a connector without consuming power from the DC voltage source. The electronic device further includes a controller coupled to a hot plug detect (HPD) interface. The controller is configured to receive a detection signal from the receiver sense circuit, selectively control a switch to enable and disable the DC voltage source based on the detection signal, detect an HPD signal at the HPD interface after enabling the DC voltage source, and disable the receiver sense circuit in response to detecting the HPD signal.
Public/Granted literature
- US20140149756A1 POWER SAVING DURING A CONNECTION DETECTION Public/Granted day:2014-05-29
Information query