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:
Feb. 09, 1988
Filed:
Oct. 17, 1985
Applicant:
Inventor:
Samuel Mimoun, Paris, FR;
Assignee:
Matra Transport, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61L / ;
U.S. Cl.
CPC ...
246 / ; 2461 / ; 2461 / ; 2461 / ; 340 47 ; 364460 ;
Abstract
For data communication in the form of messages between railways vehicles moving over a same track, short identical emissions at random times by modulating a directional microwave beam whose angular opening is sufficient in the horizontal direction for maintaining communication in bends of said track and switches and in the vertical direction for maintaining communication during changes in the profile of the track.