Relay circuit for telephone interface

Details Relay circuit for telephone interface Relay circuit for telephone interface

1995-12-22

1998-05-05

Hong, Harry S.

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379 98, 379127, 379373, 379376, H04M 156

Patent

active

057487197

ABSTRACT:
A reduced number of relays are used in a voice/data/fax modem system. This reduced relay design eliminates at least one relay required in prior art systems thereby reducing the amount of geography used in producing the resultant device. This saves space, reduces costs, and provides a more reliable device.

REFERENCES:
patent: 4093830 (1978-06-01), Pappas
patent: 5040209 (1991-08-01), Greenberg et al.
patent: 5062133 (1991-10-01), Melrose
patent: 5113432 (1992-05-01), Van Santbrink et al.
patent: 5151972 (1992-09-01), Lorenz et al.
patent: 5315650 (1994-05-01), Smith et al.
patent: 5467385 (1995-11-01), Reuben et al.
patent: 5546448 (1996-08-01), Caswell et al.

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