DOS compatible dictation and voice mail system

Details DOS compatible dictation and voice mail system DOS compatible dictation and voice mail system

1996-01-17

1997-12-16

Tsang, Fan

Telephonic communications

Audio message storage, retrieval, or synthesis

Multilingual system or operation

379 84, 379 97, 364221, 364DIG1, 364920, 364DIG2, H04M 164

Patent

active

056994117

ABSTRACT:
A hardware add-on including an interface to external I/O, a voice processor, and a micro-controller along with a terminate and stay resident program allow a digital dictation and voice mail system to run transparently on a PC operating under DOS. A hardware DTMF transceiver and software template files which equate strings representing DTMF tone signals to DOS commands permits dictation through a touch-tone phone. Voice sampling and playback speed are controlled with a reference signal and a feedback loop to an oscillator controlling the sampling rate of the voice processor. Dictation, template, and message files are DOS formatted.

REFERENCES:
patent: 4663777 (1987-05-01), Szeto
patent: 4799144 (1989-01-01), Parruck et al.
patent: 4916726 (1990-04-01), Morley et al.
patent: 5125023 (1992-06-01), Morduch et al.
AT & T Technical Journal, vol.65, No.5, Sep. 1986, New York, US, pp. 60-67; by Ackenhusen et al.; "Speech Processing for AT&T Workstations".
Electronic Engineering, vol.56, No.690, Jun. 1984, London GB, p. 19, "New Board Provides Voice I/O for PC".

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