Method and system for discovering a power source on a peripheral bus
US7581119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Oct 5, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/266
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Improved techniques to recognize a power source on a peripheral bus and/or determine power available from the power source via the peripheral bus are disclosed. Typically, the peripheral bus is supported by a cable connected between a host device and an electronic device. In this case, the host device is a power source (e.g., power adapter or battery pack) and the cable is used to provide power from the power source to the electronic device. Hence, by understanding the power available from the power source, the electronic device can manage its power utilization so as to operate in a stable and reliable manner. The electronic device is, for example, a portable computing device. Examples of portable computing devices include a Portable Digital Assistant (PDA) and a portable media player.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.