Method and apparatus for processing downlink digital voice data

Details Method and apparatus for processing downlink digital voice data Method and apparatus for processing downlink digital voice data

1992-07-17

1994-02-15

Kuntz, Curtis

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 92, 375 7, H04M 1100, H04B 138

Patent

active

052873994

ABSTRACT:
A method and apparatus for preprocessing digital voice data enroute to or from a Telephone's CODEC. The apparatus supports a CODEC directly connected to an internal bus and using a separate CODEC clock and sync signal to control transfers between a telephony link/internal bus interface and the CODEC. According to an embodiment of the present invention, an auxiliary processing device (connected to the internal bus side of the phone) is provided with means to process the digital voice information before sending it uplink or to the CODEC. This is accomplished without changing the position of the incoming voice field.

REFERENCES:
patent: 4642805 (1987-02-01), Dumas et al.
patent: 4975947 (1990-12-01), Chauvel
patent: 5033062 (1991-07-01), Morrow et al.
General Circuit Interface (GCI); Contract Module N.3; Issue 1.0; Mar. 1989.

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