Keyboard interface system allowing a synchronous keyboard to com

Details Keyboard interface system allowing a synchronous keyboard to com Keyboard interface system allowing a synchronous keyboard to com

1989-02-27

1992-09-08

Lee, Thomas C.

Boots, shoes, and leggings

395800, 364928, 364234, 364DIG1, 364DIG2, G06F 3023

Patent

active

051465841

ABSTRACT:
An apparatus and method for handling data transfer between a synchronous keyboard and a host processor is disclosed. An asynchronous receiver/transmitter is employed in conjunction with logic for controlling the keyboard clock and data lines to permit the receipt of data from and the transmittal of data to the keyboard in a pseudo-synchronous manner.

REFERENCES:
patent: 4460957 (1984-07-01), Eggebrecht et al.
patent: 4644497 (1987-02-01), Tajima et al.
patent: 4964075 (1990-10-01), Shaver et al.

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