Audio-augmented data keying

Details Audio-augmented data keying Audio-augmented data keying

1990-05-10

1992-07-14

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 51, 379 88, G10L 505, H04M 1856

Patent

active

051310457

ABSTRACT:
Present-day limitations of the conventional touch-tone keypad are overcome permitting alphabetic information to be entered into a distant computer. The caller speaks a speech portion into a telephone handset, and then types out the speech portion on the touch-tone keypad. The computer receiving the call converts the spoken voice information into a form suitable for additional digital processing, as by extracting speech-recognition features from the spoken information. The computer processes the typed numeric string into a list of all the possible combinations of characters it could represent. The extent of correlation between the features of the spoken speech portion and each of the combinations is determined, and the combination having the highest correlation is taken to be the speech portion entered by the user.

REFERENCES:
patent: 4418412 (1983-11-01), Kariya
patent: 4598367 (1986-07-01), DeFrancesco et al.
patent: 4782509 (1988-11-01), Shepard
patent: 4942616 (1990-07-01), Linstroth et al.
patent: 4945557 (1990-07-01), Kaneuchi et al.

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