Title:
Multichannel signaling system and method
Document Type and Number:
United States Patent 3150374

Inventors:
Sunstein, David E.
Wiesner, Jerome B.
Garwin, Richard L.
Publication Date:
09/22/1964
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Referenced by:
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Assignee:
Sunstein, David E.
Wiesner, Jerome B.
Garwin, Richard L.
Primary Class:
370/521
Other Classes:
370/350, 455/42, 370/522, 455/502, 704/201
International Classes:
H04J3/00
US Patent References:
1624596Signaling method and system
2170751Method and device for reducing and increasing audio frequencies
2219021Frequency changing
2619636Delay line distributing arrangement


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