Boots – shoes – and leggings
Patent
1989-04-07
1992-08-04
Lee, Thomas C.
Boots, shoes, and leggings
364928, 3649284, 3649292, 364264, 364DIG1, 341 22, G06F 1502
Patent
active
051366940
ABSTRACT:
A computing device includes a system control processor, a built-in keyboard having a plurality of keys, a connector which facilitates connection of an external keyboard or keypad to the device, an electronic switch which is controlled by the internal keyboard processor and can electrically couple the connector to the system control processor. The internal keyboard processor monitors signals from the system control processor, connector and internal keyboard keys in order to open and close the analog switch so as to facilitate transfers between the system control processor and the internal keyboard through itself, and transfers between the system control processor and an external keyboard through the electronic switch.
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Barnes Brian C.
Belt Steven L.
Foster Mark J.
Ruthenbeck Mark A.
Vanderheyden Randy J.
Coleman Eric
Lee Thomas C.
Zenith Data Systems Corporation
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