The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2023
Filed:
Feb. 11, 2019
Applicant:
Siemens Mobility Limited, London, GB;
Inventor:
David Cowen, Chippenham, GB;
Assignee:
Siemens Mobility Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/00 (2006.01); G01H 9/00 (2006.01); B61L 1/16 (2006.01); B61L 29/22 (2006.01);
U.S. Cl.
CPC ...
B61L 1/165 (2013.01); B61L 29/228 (2013.01);
Abstract
A sensor unit for detecting the approach of a train, the sensor unit having first and second non-rail-mounted sensors, wherein the non-rail-mounted sensors are different from one another. A first control unit, itself having first and second non-rail-mounted sensors, wherein the non-rail-mounted sensors are different from one another in that they work on different physical principles, wherein the first sensor unit and first control unit are arranged to cooperate with one another to detect the approach of a train.