Low signal loss type hot stand-by switching unit

Details Low signal loss type hot stand-by switching unit Low signal loss type hot stand-by switching unit

1997-11-13

1999-03-23

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Switching systems

307116, 307125, 307130, 307131, H01H 104, H02B 124

Patent

active

058864270

ABSTRACT:
A hot stand-by switching unit for a receiving apparatus including regular and a protection receiver comprises a branch circuit and a control circuit. The branch circuit consists of a coupler and a high-frequency switching unit. The high-frequency switching unit is controlled by the control circuit and supplies a low loss output of the coupler to the regular receiver and a high loss output of the coupler to the protection receiver. When the regular receiver breaks down, the high-frequency switching unit supplies the low loss output of the coupler to the protection receiver and the high loss output of the coupler to the regular receiver.

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patent: 5778306 (1998-07-01), Kommrusch
patent: 5825227 (1998-10-01), Kohama et al.

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