CVSD Multiple conference system

Details CVSD Multiple conference system CVSD Multiple conference system

1980-08-13

1982-11-16

Popek, Joseph A.

Multiplex communications

Wide area network

Packet switching

370 62, H04M 356

Patent

active

043596037

ABSTRACT:
A plurality of conferencers are connected to a common bus. Each conferencer has a plurality of accumulators each for outputting a CVSD conference. Each conferencer selectively places any one or all or any combination of a plurality of inputs in any one or all or any combination of its accumulators independently of each other and independently of the accumulators in the remaining conferencers. Inputs may be selectively scaled to provide different volume levels for different conferees.

REFERENCES:
patent: Re29991 (1979-05-01), Wolcott
patent: 3970797 (1976-07-01), Johnson et al.
patent: 4163871 (1979-08-01), Maggi
patent: 4215247 (1980-07-01), Lambert
patent: 4271502 (1981-06-01), Goutmann et al.
N. C. Seiler, "A Monolithic Implementation of a CVSD Algorithm", 1976 International Computer Conference on Communications, vol. II, pp. 31-11 through 31-16.
"Preliminary HR-3210 All-Digital Continuously Variable Slope Delta Modulator (CVSD)", Harris Corporation Bulletin, 1976.

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