Modem with digital isolation

Details Modem with digital isolation Modem with digital isolation

1992-06-09

1994-11-29

Dwyer, James L.

Pulse or digital communications

Repeaters

Testing

379 98, 379399, 379412, 361 56, 361111, H04B 138, H02H 300, H02H 322, H02H 904

Patent

active

053696662

ABSTRACT:
The MODEM WITH DIGITAL ISOLATION removes the relatively large heavy isolation transformer from the Data Access Arrangement and substitutes two tiny pulse transformers between the Integrated Analog and Digital Signal Processor with multiplexers and demultiplexers to eliminate analog distortion and multiple leads, and to accommodate Lap Top/Palm Top computers, while enhancing data speeds. The combination with surge protection enables both uncommon and common mode protection.

REFERENCES:
patent: 4203006 (1980-05-01), Mascia
patent: 4253048 (1981-02-01), Osako
patent: 4395590 (1983-07-01), Pierce et al.
patent: 4417099 (1983-11-01), Pierce
patent: 4578533 (1986-03-01), Pierce
patent: 4620294 (1986-10-01), Leung et al.
patent: 4896349 (1990-01-01), Kubo et al.
patent: 5086454 (1992-02-01), Hirzel
patent: 5224154 (1993-06-01), Aldridge et al.
"Radio Shack New 1974-75 Dictionary of Electronics" Rudolf F. Graf p. 687.

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