Apparatus and method for bios interface to features in multiple

Details Apparatus and method for bios interface to features in multiple Apparatus and method for bios interface to features in multiple

1994-05-02

1996-01-02

Lee, Thomas C.

Boots, shoes, and leggings

395310, 395162, 364DIG1, 3642399, 364247, 3642472, G06F 1300, G06F 1200, G06F 1202

Patent

active

054817544

ABSTRACT:
Control of LCD backlighting, contrast, and video port selection with BIOS. Calls made from application programs to BIOS result in BIOS read and write operations to a distributed register in video adapters. The use of the register allows BIOS to simultaneously obtain information from multiple displays, as well as simultaneously execute hardware functions such as backlight control. In addition, use of BIOS simplifies programming of hardware related tasks such as backlight control to improve mean time between failure (MTBF) of LCD displays.

REFERENCES:
patent: 4373181 (1983-02-01), Chisholm et al.
patent: 4438432 (1984-03-01), Hurcum
patent: 4704697 (1987-11-01), Kiremidzian et al.
patent: 4757441 (1988-07-01), Buckland et al.
patent: 4849931 (1989-07-01), Ishii et al.
patent: 4958915 (1990-09-01), Okaka et al.
patent: 4965559 (1990-10-01), Dye
"IBM Enhanced Graphics Adapter" pp. 1-75 Aug. 2, 1984.

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