Title:
【発明の名称】アップグレード・デバイスがインストールされるとグラフィックス・デバイスを使用不可にする方法および装置
Document Type and Number:
Japanese Patent JP2002534739
Kind Code:
A
Abstract:
One embodiment of a graphics device that can be disabled when an upgrade graphics device is installed is described. The graphics device includes an interface to a bus and an input to receive a device disable signal. When the device disable signal is asserted, the interface to the bus places its buffers in a high impedance state, meaning that the graphics device is electrically isolated from the bus. When the device disable signal transitions from asserted to deasserted, a reset circuit in the graphics device resets the graphics device.
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Inventors:
Woolsey, Clark Tay
Michelsen, Jeffrey M
Michelsen, Jeffrey M
Application Number:
JP2000592743A
Publication Date:
October 15, 2002
Filing Date:
December 14, 1999
Export Citation:
Assignee:
INTEL CORPORATION
International Classes:
G06F3/00; G06F1/24; G06F13/36; G06F13/40; G06T1/20; G09G5/36; (IPC1-7): G06F3/00; G06F1/24; G06F13/36; G06T1/20
Domestic Patent References:
| JPH02162762A | 1990-06-22 | |||
| JPH09135159A | 1997-05-20 | |||
| JPH06196997A | 1994-07-15 | |||
| JPH02141998A | 1990-05-31 | |||
| JPH10210100A | 1998-08-07 | |||
| JPH05274868A | 1993-10-22 | |||
| JPS62203478A | 1987-09-08 | |||
| JPS6220069A | 1987-01-28 |
Attorney, Agent or Firm:
Masaki Yamakawa