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. 20, 2004
Filed:
Sep. 07, 1999
Applicant:
Inventor:
John E. Haley, Burleson, TX (US);
Assignee:
New York Air Brake Corporation, Watertown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/44 ;
U.S. Cl.
CPC ...
H04B 1/44 ;
Abstract
An intra-train communication network comprising a plurality of transceiver units on individual vehicles of the train. A master unit initially transmits queries, including a first ID from a first group of ID's, to the slave units using a second ID from a second group of ID's, and subsequently transmits queries using the first ID from the first group. The slave units initially listens for queries using the second ID from the second group, responds using the second ID and subsequently listens for and responds using the first ID.