CVSD Multiple conference system
First Claim
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1. A CVSD multiple conference system comprising:
- a plurality of conferencers each having a plurality of accumulators each for outputting a CVSD conference, and including means in each conferencer for selectively placing any one or all or any combination of a plurality of linear format inputs representing the size or weight of CVSD signals in any one or all or any combination of the accumulators in its respective conferencer independently of the accumulators in the remaining conferencers, andmeans for deriving from at least a designated one of said accumulators an output so that when the designated accumulator is selected to contain a combination of a plurality of said inputs, said output represents a conference of said CVSD signals.
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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.
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Citations
23 Claims
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1. A CVSD multiple conference system comprising:
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a plurality of conferencers each having a plurality of accumulators each for outputting a CVSD conference, and including means in each conferencer for selectively placing any one or all or any combination of a plurality of linear format inputs representing the size or weight of CVSD signals in any one or all or any combination of the accumulators in its respective conferencer independently of the accumulators in the remaining conferencers, and means for deriving from at least a designated one of said accumulators an output so that when the designated accumulator is selected to contain a combination of a plurality of said inputs, said output represents a conference of said CVSD signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. The CVSD multiple conference system comprising:
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means for generating a plurality of linear digital data signals from a respective plurality of CVSD inputs; data bus means connected to the output of said generating means for receiving said signals; conferencing means connected to said bus means and including a plurality of accumulators each for outputting a conference of a multiplicity of said CVSD inputs and including means for selectively placing any said signal in any one or all or any combination of said accumulators; and means connected to the outputs of said accumulators for delivering CVSD outputs. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A CVSD multiple conference system comprising:
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a plurality of parallel conferencers; a data bus connected to all of said conferencers for making available to said conferencers a plurality of sequential time division multiplexed input signals, each signal comprising a multilevel digital linear code representing the size or weight of an input CVSD bit; each conferencer comprising; a plurality of accumulators for outputting a conference of a multiplicity of CVSD signals, each corresponding to one of said input CVSD bits; means sequentially accessing each of the accumulators in that conferencer in time division multiplex order for a sub-time slot of each input signal time slot on said bus, and for each sub-time slot either leaving the contents of the sequenced accumulator unaltered or additively or subtractively summing said multilevel digital linear code with said contents according to the polarity of said CVSD bit; and a memory having a plurality of storage locations providing control codes for each summation in each accumulator in its conferencer during each of said input signal time slots. - View Dependent Claims (23)
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Specification