Title:
DUAL-PROCESSOR BASED SYSTEM AND METHOD OF WAKING UP COMPONENTS THEREIN
Document Type and Number:
WIPO Patent Application WO2003100632
Kind Code:
A3
Abstract:
A method of waking up components in a dual-processor based system comprising a first processor system (310) to be activated. Upon activation, components in a second processor system (320) need to be activated. The method comprises initiating a wake-up process (405) and waking-up first processor system components, and generating an interrupt signal (420). The interrupt signal is used to wake-up second processor system components that are required to be woken for the wake-up process of the first processor system (310). The second processor system components are activated at, or before, a time when the first processor system requires the components to be activated. A dual processor based system is also described. In this manner, components used in a second processor system are awoken in a timely manner when they are needed in the awakening process of the first processor system. This prevents delay and reduces power consumption in a device.
Inventors:
DALE PAUL (GB)
Application Number:
PCT/GB2003/002274
Publication Date:
May 13, 2004
Filing Date:
May 27, 2003
Export Citation:
Assignee:
SENDO INT LTD (CN)
DALE PAUL (GB)
DALE PAUL (GB)
International Classes:
G06F1/32; G06F9/445; H04M1/73; (IPC1-7): H04M1/73; H04B1/16
Domestic Patent References:
| WO1993025955A1 | 1993-12-23 |
Foreign References:
| EP0895394A2 | 1999-02-03 | |||
| EP0757466A2 | 1997-02-05 | |||
| EP0677974A2 | 1995-10-18 | |||
| US6356538B1 | 2002-03-12 | |||
| US5487181A | 1996-01-23 | |||
| US4870570A | 1989-09-26 |
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