Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection
Patent
1989-04-10
1991-05-28
Levy, Stuart S.
Telephonic communications
Supervisory or control line signaling
Using line or loop condition detection
379390, 379 85, 381118, 84671, H04M 908, H04M 157
Patent
active
050201018
ABSTRACT:
A musicians telephone interface that interconnects an instant location through a telephone line to a remote location such device having inputs to receive the sound from musical instruments and/or vocalization at each location with balancing circuitry and broadcast means at each location for the musicians at each location to hear the music of one another simultaneously balanced for collaboration and production of music.
REFERENCES:
patent: 3787621 (1974-01-01), Barok
patent: 3922488 (1975-11-01), Gabr
patent: 4481382 (1984-11-01), Villa-Real
patent: 4605975 (1986-08-01), Beaman
patent: 4726062 (1988-02-01), Martz et al.
patent: 4833704 (1989-05-01), Hashimoto
patent: 4843498 (1989-06-01), Graf von Zedlitz und Trutzschler
Brotz Gregory R.
Dallas Angelo N.
Brotz Gregory R.
Levy Stuart S.
Nitkin William
Rhoa Joseph A.
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