Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1995-05-30
1996-10-01
Zele, Krista M.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379 96, 379442, 379 77, 379443, 379 99, 379444, 379 67, 379 52, H04M 1100
Patent
active
055617107
ABSTRACT:
An interactive voice communication terminal (10) provides alpha and numeric characters transmitted from a DTMF generator (36) to access a database by interfacing with the mouthpiece (24) of a telephone handset (26) via a transducer (22). A keypad (14) is operable to allow selection of one of multiple characters associated with alpha characters and numeric characters. A table of DTMF strings associated with each key is stored in a memory (34). In response to depression of a key on the keypad (14), a centralized controller (32) controls the DTMF generator (36) to output the sequence associated with the depressed key that was stored in the memory (34) to transducer (22) via a driver (38). The tables in the memory (34) can be a combination of DTMF sequences for alpha characters and single number sequences for numerical sequences or they can be fixed-length sequences for all numerical and alpha characters. Further, a Learn mode is provided for allowing the user to program the DTMF sequence for a given key on the keypad (14).
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GE, "Use and Care Guide", Model 2-9375, pp. 1-9 & Back Cover.
Howison Gregory M.
Wolinsky Scott
Zele Krista M.
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