Power management for automotive multimedia system
US6393573B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multimedia/personal computer-based system for operating information, communication, and entertainment devices in a mobile vehicle uses a power management strategy which reduces power consumption and boot-up time in a manner which facilitates use of a complex instruction set computing (CISC) processor system. A loosely coupled power management strategy utilizes a low power microprocessor off board of the main motherboard for switching a plurality of regulated voltages to the main motherboard and other devices. The use of a separate board for input/output processing and power management provides for more robust power management and facilitates adaptation of the system for inclusion in different vehicles using different input/output devices and networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.