发明名称 |
Computer system including protected graphics display control signal sequencing |
摘要 |
A computer system is provided which assures that display control signals provided to a display are properly sequenced despite the presence of ill-behaved application software. The risk of damage to displays which require control signals to be in a predetermined sequence is thus significantly reduced. An enable signal from the system's graphics controller is intercepted by a microcontroller. The microcontroller generate its own properly sequenced and timed display control signals in response to the enable signal from the graphics controller. The microcontroller controls a switching apparatus which couples clock and data signals from the graphics controller to the display at an appropriate time in the control signal sequence.
|
申请公布号 |
US5703629(A) |
申请公布日期 |
1997.12.30 |
申请号 |
US19950489011 |
申请日期 |
1995.06.08 |
申请人 |
DELL USA, L.P. |
发明人 |
MERMELSTEIN, LOIS D.;WITTE, KENDALL C. |
分类号 |
G06F3/147;G09G3/20;G09G5/36;(IPC1-7):G06F13/10 |
主分类号 |
G06F3/147 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|