Portable electronic devices with power management capabilities
US8171322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device may operate in standby and active modes. A headset may be coupled to the electronic device. The electronic device may have audio codec circuitry. The audio codec circuitry may use general purpose input-output circuitry in handling button and headset activity during active mode. Processing circuitry may be used to reconfigure the audio codec in real time. When the electronic device is in the standby mode and activity is detected, the codec may be configured to provide an interrupt signal to a power management unit that wakes the device. When the electronic device is in active mode and no user inputs are received within a given period of time, the central processor in the electronic device may place the device in standby mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.