System for selectively modifying codes generated by a touch type

Details System for selectively modifying codes generated by a touch type System for selectively modifying codes generated by a touch type

1990-06-22

1994-02-15

Lee, Thomas C.

Boots, shoes, and leggings

3649286, 3649475, 3649481, 364DIG2, 36470912, 345172, G06F 303, G06F 1520

Patent

active

052875261

ABSTRACT:
A method and apparatus for enhancing the operation of computer keyboards. The keyboard includes a plurality of keys, and code generation means for producing make and break codes when keys are depressed and released. The invention comprises a processor coupled to receive the generated codes. The processor detects a sequence of codes serially including a make code of a trigger key, a make code of a target key different from the trigger key, and a break code of the target key. A timer determines whether the interval of time between the trigger key make code and the target key break codes exceeds a predetermined non-zero triggering interval. If the sequence is not detected, or if the triggering interval is not exceeded, then the processor outputs the codes produced by the code generation means. However if the sequence is detected and if the triggering interval is exceeded, modified codes are output. Embodiments are described in which non-touch-type keys, such as the control key, can be typed using only the touch-type portion of a keyboard.

REFERENCES:
patent: 4490056 (1984-12-01), Whitaker
patent: 4669901 (1987-06-01), Feng
patent: 4680572 (1987-07-01), Meguire et al.
patent: 4694280 (1987-09-01), Rollhaus et al.
patent: 4701130 (1987-10-01), Whitney et al.
patent: 4891786 (1990-01-01), Goldwasser
patent: 4937778 (1990-06-01), Wolf et al.

Affiliated with

Also associated with

Rating

System for selectively modifying codes generated by a touch type does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for selectively modifying codes generated by a touch type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for selectively modifying codes generated by a touch type will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1215481