Accessory device power management
US9594415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/1632
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Accessory device power management techniques are described in which a power exchange state for a system including a host computing device, an accessory device, and an adapter is recognized. Power exchange states may be defined according to relative states of charge (RSOC) and connection status for the system components and mapped to power management control actions. Responsive to the recognition of a current power exchange state, corresponding power management control actions may be ascertained and applied to jointly manage power for the system. For instance, the host device may draw supplemental power from a power source associated with an accessory device (e.g., a battery or power adapter) or supply power for use by the accessory device according to different states. Power exchanges may also be managed in accordance with capabilities of the accessory device identified based on authentication of the accessory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.