Method and apparatus for using pushbutton telephone keys for gen

Details Method and apparatus for using pushbutton telephone keys for gen Method and apparatus for using pushbutton telephone keys for gen

1974-03-29

1976-06-29

Caldwell, John W.

Communications: electrical

Audible indication

Percussion-type sound producer

178 17C, 179 90K, 197100, H04L 1504

Patent

active

039672735

ABSTRACT:
The disclosure comprises a method and apparatus for using a pushbutton telephone keyboard in which a signal sequence representing a unique symbol is generated by pushing a first button on which the desired symbol is located, each button being labeled with at most a three by three array of symbols, and pushing a second button, which is indicated by the position of the symbol in the array on the first button. Letters and numbers are arranged corresponding to the arrangement of a standard typewriter keyboard, insuring that anyone familiar with the location of letters and numbers on a typewriter can quickly find the letter on the keyboard.

REFERENCES:
patent: 2189023 (1940-02-01), Ayres
patent: 3225883 (1965-12-01), Ayres
patent: 3526892 (1970-09-01), Bartlett et al.
patent: 3530239 (1970-09-01), Corell et al.
patent: 3675513 (1972-07-01), Flanagan et al.
patent: 3833765 (1974-09-01), Hilborn et al.
Stuckert, IBM Technical Disclosure Bulletin, "Input Keyboard," Aug. 1971, pp. 952-959.

Affiliated with

Also associated with

Rating

Method and apparatus for using pushbutton telephone keys for gen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for using pushbutton telephone keys for gen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for using pushbutton telephone keys for gen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1281957