Computer with improved keyboard password functions

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United States Patent

4942606

Link to this page

http://www.wikipatents.com/4942606.html

Inventor(s)

Kaiser; Roger A. (Houston, TX); Nuckols; James H. (Houston, TX); Emerson; Theodore F. (Houston, TX); Brasher; Gary L. (Houston, TX)

Abstract

A computer having an improved keyboard/auxiliary device interface controller which supports the selective restriction of user interaction with the computer system, while maintaining the full internal functionality of the host/peripheral interface. A "password lock mode" of the improved controller prevents users from gaining unauthorized access to the computer system, but still application and operating system software can continue to issue commands to and receive responses from the otherwise disabled peripheral devices. The improved controller does not require modification to the conventional keyboard/auxiliary device hardware.

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U.S. References

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Reference	Relevancy	Comments	Reference	Relevancy	Comments
4891838 Faber 726/5 Jan,1990	Your vote accepted [0 after 0 votes]		4882752 Lindman 713/166 Nov,1989	Your vote accepted [0 after 0 votes]
4697072 Kawana 235/380 Sep,1987	Your vote accepted [0 after 0 votes]		4536647 Atalla 705/70 Aug,1985	Your vote accepted [0 after 0 votes]
4529870 Chaum 235/380 Jul,1985	Your vote accepted [0 after 0 votes]
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