Personal computer for performing power save operation of an external CRT by determining a DPMS-compliant CRT
US5696978A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Jun 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A CMOS memory stores DPMS-Enable/Disable data set by the user. When a display power save request has been issued from an operating system or an application program, the VBE/PM of a VGA BIOS determines, with reference to the DPMS-Enable/Disable data, whether or not a DPMS function is enabled. The VBE/PM executes the DPMS function including the interruption of the supply of horizontal and vertical synchronization signals, if the DPMS function is enabled, and does not execute the DPMS function if it is disabled. Thus, the execution of the DPMS control function can be allowed or prohibited in accordance with the contents of the DPMS-Enable/Disable data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.