Telephonic communications – Supervisory or control line signaling – Substation originated
Patent
1992-05-26
1994-08-16
Dwyer, James L.
Telephonic communications
Supervisory or control line signaling
Substation originated
379100, 379355, 379387, 379 94, 379 95, 341 22, 341 28, 341 20, 341 23, H04M 100
Patent
active
053393589
ABSTRACT:
A method and apparatus for the conversion of a standard push button telephone keypad into a data entry terminal permitting full alphanumeric DTMF entry through a telephone system to a file server for delivery to a service provider computer. The alphabetical letters are prearranged to enable single or adjacent keypairs to be defined for each alphabetical letter. DTMF signals are generated by the keypairs and are transmitted to conventional voice tone recognition apparatus and storage facilities of the central computer for later or simultaneous delivery to a service provider computer such as a facsimile machine, an E-mail system, a paging system, and/or any data base connected to a telephone line.
REFERENCES:
patent: 4490056 (1984-12-01), Whitaker
patent: 4609792 (1986-09-01), Levasseur
patent: 4737980 (1988-04-01), Curtin et al.
patent: 5040209 (1991-08-01), Greenberg
patent: 5117455 (1992-05-01), Danish et al.
Danish Adel
Danish Sherif
Kimbrough Kris W.
Castaneda Janet Kaiser
Danish International, Inc.
Dwyer James L.
Eakin James E.
Saint-Surin Jacques M.
LandOfFree
Telephone keypad matrix does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Telephone keypad matrix, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone keypad matrix will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-959056