05214785 is referenced by 83 patents and cites 11 patents.

A microcontroller peripheral system is interfaced to the existing keyboard input of an unmodified host computer while supporting normal keyboard operation of the host. The controller is independently powered and responds to keyboard input with the host powered down. The peripheral is interfaceable for controlling or monitoring a wide variety of real world devices, and can power up the host to initialize any desired application program on the host by emulating keyboard input. The controller can establish two-way communication with the host through a serial port by initializing a communication program on the host via emulated keyboard input.

Title
Controller with keyboard emulation capability for control of host computer operation
Application Number
7/413115
Publication Number
5214785
Application Date
September 27, 1989
Publication Date
May 25, 1993
Inventor
John R C Fairweather
Los Angeles
CA, US
Agent
Beehler & Pavitt
Assignee
Third Point Systems
CA, US
IPC
G06F 9/455
G06F 11/00
G06F 11/30
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