Digital input control circuit

Details Digital input control circuit Digital input control circuit

1977-12-30

1980-08-26

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 1100

Patent

active

042198810

ABSTRACT:
A digital input circuit is provided wherein previous digital data is stored in a holding register. Subsequent data is compared with the data in the holding register to determine whether or not a change had occurred in the input data from the primary sensors. If no change is detected, the system effectively "passes" on that scan of the data. If, on the other hand, a change has been detected an interrupt signal is generated for transmission back to the host computer. The host computer may then initiate a "read" sequence. The "read" sequence under ordinary circumstances, includes updating the data in the storage register before enabling the outputting of the digital data.

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