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Class Information
Number: 379/906
Name: Telephonic communications > Touchtone message transmission
Description: Subject matter comprising a system or device using a standard or modified telephone keypad for transmitting an alphanumeric message over a telephone line or channel.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6687341 |
Network and method for the specification and delivery of customized information content via a telephone interface |
Feb. 3, 2004 |
| 5392338 |
Entry of alphabetical characters into a telephone system using a conventional telephone keypad |
Feb. 21, 1995 |
| 5388154 |
Alphabetic telephone dialer apparatus and method |
Feb. 7, 1995 |
| 5339358 |
Telephone keypad matrix |
Aug. 16, 1994 |
| 5303288 |
Multiple mode cellular telephone control device |
Apr. 12, 1994 |
| 5249220 |
Handheld facsimile and alphanumeric message transceiver operating over telephone or wireless networks |
Sep. 28, 1993 |
| 5031206 |
Method and apparatus for identifying words entered on DTMF pushbuttons |
Jul. 9, 1991 |
| 4866759 |
Packet network telecommunication system having access nodes with word guessing capability |
Sep. 12, 1989 |
| 4754474 |
Interpretive tone telecommunication method and apparatus |
Jun. 28, 1988 |
| 4677659 |
Telephonic data access and transmission system |
Jun. 30, 1987 |
| 4674112 |
Character pattern recognition and communications apparatus |
Jun. 16, 1987 |
| 4658417 |
Information transmission/reception system using pushphone and information reception apparatus |
Apr. 14, 1987 |
| 4650927 |
Processor-assisted communication system using tone-generating telephones |
Mar. 17, 1987 |
| 4649563 |
Method of and means for accessing computerized data bases utilizing a touch-tone telephone instrument |
Mar. 10, 1987 |
| 4608457 |
Telecommunications device for the hearing impared |
Aug. 26, 1986 |
| 4440977 |
Pushbutton decoder and printer |
Apr. 3, 1984 |
| 4304968 |
Telephone electronic answering device |
Dec. 8, 1981 |
| 4191854 |
Telephone-coupled visual alphanumeric communication device for deaf persons |
Mar. 4, 1980 |
| 4191855 |
Full duplex audio response device |
Mar. 4, 1980 |
| 4185169 |
Synthetic-speech calculators |
Jan. 22, 1980 |
| 4121052 |
Telephone data recording system |
Oct. 17, 1978 |
| 4012599 |
Telephone communications system for the deaf |
Mar. 15, 1977 |
| 4007443 |
Hand-held interactive terminal |
Feb. 8, 1977 |
| 3992587 |
Remote data line monitor |
Nov. 16, 1976 |
| 3976840 |
Portable securities selector system |
Aug. 24, 1976 |
| 3967273 |
Method and apparatus for using pushbutton telephone keys for generation of alpha-numeric information |
Jun. 29, 1976 |
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