Transformer bus coupler

Details Transformer bus coupler Transformer bus coupler

1992-02-25

1994-04-05

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

333130, 333131, 333 32, H04B 300

Patent

active

053012089

ABSTRACT:
A transformer bus coupler, which connects a transceiver to a data bus without impedance discontinuities. The transformer bus coupler maintains the voltage-to-current ratio of signals as they enter and leave the coupler by providing a shunt circuit that attenuates the current of these signals by the same ratio that the series elements of the coupler attenuate the voltage. The result is an avoidance of impedance discontinuities, which would otherwise result in the signal reflections and the loss of signal fidelity experienced by prior art data bus couplers.

REFERENCES:
patent: 2148098 (1939-02-01), Bowman-Manifold
patent: 2237796 (1941-04-01), Smith
patent: 3983323 (1976-09-01), Griffith et al.
patent: 4443662 (1984-04-01), Nakhla
patent: 4507793 (1985-03-01), Adams
patent: 4588856 (1986-05-01), Cohen
patent: 5073762 (1991-12-01), Yu
patent: 5081648 (1992-01-01), Herzog

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