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:
Jan. 30, 2007
Filed:
Dec. 11, 2003
Régis Lardennois, Montrouge, FR;
Bénédicte Chochois, Montrouge, FR;
Roland Tousch, Montrouge, FR;
Pascal Leboucher, Montrouge, FR;
Régis Lardennois, Montrouge, FR;
Bénédicte Chochois, Montrouge, FR;
Roland Tousch, Montrouge, FR;
Pascal Leboucher, Montrouge, FR;
Siemens Transportation Systems, Montrouge Cedex, FR;
Abstract
The cellular system for transmitting information by radio between an infrastructure and mobiles constrained to travel on a determined path comprises stationary transceiver stations and at least one transceiver carried by each mobile, which transceivers are controlled in such a manner that, while a mobile is in a given cell, exchanges between the mobile and the transceivers allocated to the cell take place on two different frequencies in alternation during two successive radio cycles.