US Patent Issued to SIEMENS MOBILITY on May 27 for "Grade crossing control system and method for determining track circuit impedance" (California Inventor)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,990, issued on May 27, was assigned to SIEMENS MOBILITY INC. (New York).

"Grade crossing control system and method for determining track circuit impedance" was invented by Brian Joseph Hogan (Temecula, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A grade crossing control system includes a track transmitter configured to couple to rails of a railroad track, and a track receiver configured to couple to the rails of the railroad track, wherein the track transmitter comprises a signal source and an amplifier, and is configured to transmit a first signal to the rails, wherein the track receiver is configured to measure a second signal in respons...