Voice/image simultaneous communication apparatus

Details Voice/image simultaneous communication apparatus Voice/image simultaneous communication apparatus

1994-02-23

1994-10-25

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379100, 379 58, 348 17, 358435, H04M 1100

Patent

active

053596447

ABSTRACT:
A voice/image simultaneous communication apparatus which can transmit image data while permitting talking with higher efficiency by encoding voice and synthesizing voice coded data and image data than by multiplexing frequencies. The voice/image simultaneous communication apparatus is constructed of a voice coder for coding an analog voice signal, a voice decoder for decoding the coded voice into an analog voice signal, a data synthesizer for synthesizing image coded data and voice coded data, a data separator for separating synthesized coded data into image coded data and voice coded data, and a modem capable of performing full duplex communication. The data synthesizer can change the ratio of synthesis between voice coded data and image coded data in accordance with the data transmission speed.

REFERENCES:
patent: 4849811 (1989-07-01), Kleinerman
patent: 4887158 (1989-12-01), Guichard et al.
patent: 5164980 (1992-11-01), Bush et al.
patent: 5204893 (1993-04-01), Choi et al.

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