Circuit for controlling dynamic rotation speed of fan, method of controlling dynamic rotation speed of fan, and program for controlling dynamic rotation speed of fan
US8265799B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2010 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/206
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A first reception unit receives “ambient temperature” which is a temperature of surroundings where the computer is installed. A second reception unit receives “first device temperature” which is a temperature of a first device provided in the computer. A third reception unit receives “second device temperature” which is a temperature of a second device provided in the computer. A fan rotation speed indicating unit determines the rotation speed of the fan based on a comparison between the ambient temperature, first device temperature, and second device temperature which are received by the first to third reception units and a fan rotation speed description table describing a relationship between the respective temperature and fan rotation speed and instructs the fan to rotate at the determined rotation speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.