Jason Tadao Kurashige
Engineers at Groveview Ln, Irvine, CA

5355414, Oct 11, 1994

Jan 21, 1993

8/007170

Robert P. Hale - Irvine CA
Jason T. Kurashige - Irvine CA

AST Research, Inc. - Irvine CA

H04L 932, G06F 1312

380 25

A computer security device for preventing unauthorized access to a computer system automatically disables peripheral device access to the computer system after the peripheral input devices remain inactive for a predetermined period. The system comprises a host computer which is in communication with a keyboard controller and a display. The keyboard controller is in communication with one or more peripheral input devices such as a keyboard and a mouse. The computer security device operates in the keyboard controller, independent from the host. The keyboard controller activates security after a preset time period during which the mouse and keyboard remain inactive. When the security is active, the keyboard controller disables transfers to the host computer from the peripheral input devices. In order to re-enable peripheral device access to the host computer, a user enters a correct password on the keyboard. In a preferred embodiment, the display is also deactivated when security is active.

5654905, Aug 5, 1997

Sep 15, 1995

8/528945

Candace Mulholland - Foothill Ranch CA
Jason T. Kurashige - Irvine CA

AST Research, Inc. - Irvine CA

G06F 114

364569

A system tracks the amount of time a computer system has operated, after its delivery to a new user. The system includes a terminate and stay resident (TSR) program which is loaded each time the computer is booted. The program counts system timer ticks and, at predetermined intervals but only when the operating system is idle, logs the amount of time counted in a log file located on the computer's local hard drive.