Data input controller for inhibiting and enabling input

Details Data input controller for inhibiting and enabling input Data input controller for inhibiting and enabling input

1993-06-25

1995-11-07

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 380 25, G06F 100

Patent

active

054650836

ABSTRACT:
A data input controller which can set a keyboard to a key lock mode without affecting the operation state of a central processing unit (CPU). In the normal key input enable state, a keyboard encoder encodes a key input through the keyboard and sends the resultant data via a keyboard controller to the CPU. In this state, when a specific key combination is entered through the keyboard, the keyboard encoder detects it and sets the key lock mode. The encoded data corresponding to the subsequent key inputs is not sent to the keyboard controller. If a desired password is entered at this time, it is registered in RAM in the keyboard controller. The key lock mode is released when the registered password is entered.

REFERENCES:
patent: 5097506 (1992-03-01), Kaiser, Jr. et al.

Affiliated with

Also associated with

Rating

Data input controller for inhibiting and enabling input does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data input controller for inhibiting and enabling input, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data input controller for inhibiting and enabling input will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-199448