Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-03-21
1994-07-19
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
328 15, 328 28, 307261, 307282, 246 34R, 324 87, H03B 1900, H03K 500, B61L 2100, G01R 2500
Patent
active
053312880
ABSTRACT:
A receiver for use in receipt of signals on railroad rails which converts the rail signal to a higher frequency and feeds the higher frequency signal into an input transformer. The secondary of the input transformer is in a tuned circuit which is resonate at the higher frequency and which contains a winding of an output transformer. The tuned circuit can be tuned to the higher frequency by series components such as a resistor and capacitor.
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Phillips, Jr., "Railroad Operation and Railway Signaling", Simmon-Broadman Publishing Corporation, Chicago 1942, pp. 36-37.
Callahan Timothy P.
Ingersoll Buchanan
Phan Trong
Union Switch & Signal Inc.
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