Systems and methods for powering a charging circuit of a communications interface
US9041241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2012 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments include systems and methods of powering a mobile device using a sink device. The method may include detecting a coupling of the mobile device to the sink device and transmitting an acknowledgement in response to a query, the acknowledgement confirming that the sink device has charging capability. Power may be selectively provided in response to the power request. According to some embodiments, the method includes transmitting a query by a communications transmitter to determine if a sink device has charging capability, and deactivating a driver for a power line and transmitting a power request using the communications transmitter in response to receiving an acknowledgement signal from the sink device. The method may further include selectively providing power received from the sink device to a charging circuit of the mobile device. The mobile device may include an HDMI transmitter for communicating through a transmission line to an HDMI sink device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.