Operational input apparatus

Details Operational input apparatus Operational input apparatus

1995-05-11

1996-10-29

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

345161, 345163, 273148B, G09G 500

Patent

active

055701108

ABSTRACT:
An operational input apparatus having an internal input apparatus and an external additional input apparatus wherein the internal data obtained by the operation of the internal input apparatus and the external data obtained by the operation of the external additional input apparatus are selectively transferred to an equipment main body and including: a changeover circuit for changing over the connection to the equipment main body; a data detector for detecting the change in the internal data and the external data separately; an internal data counter and an external data counter which start counting at the detection of the respective changes in the internal and the external data and clear the count values after a predetermined period of time; and a changeover controller which controls a switch to change over periodically and alternately when the count values of the internal data counter and the external data counter are both zero, and when a count value is obtained, controls the switch to change over to the side wherein the count value is obtained.

REFERENCES:
patent: 4588187 (1986-05-01), Dell
patent: 4816810 (1989-03-01), Moore
patent: 5245320 (1993-09-01), Bouton
patent: 5414422 (1995-05-01), Allen
patent: 5421590 (1995-06-01), Robbins

Affiliated with

Also associated with

Rating

Operational input apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1788842