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:
Jun. 10, 2008
Filed:
Jul. 07, 2005
Thua Van Ho, Mississauga, CA;
Roger Tong, Oakville, CA;
Wal-cheung Tang, Mannheim, CA;
Daniel Terrier, Toronto, CA;
Martin Capper, Milton, CA;
Thua Van Ho, Mississauga, CA;
Roger Tong, Oakville, CA;
Wal-Cheung Tang, Mannheim, CA;
Daniel Terrier, Toronto, CA;
Martin Capper, Milton, CA;
Mark IV Industries Corporation, Mississauga, Ontario, CA;
Abstract
An electronic toll collection system with dynamically adjusted timing for operation of one or more subsystems. The timing is dynamically adjusted based upon the prevailing traffic speed for the roadway. The roadway traffic speed is determined based upon direct measurements of traffic speed by external equipment or based upon a variable correlated with traffic speed. The variable may include the average number of handshakes per transponder over an estimation period. The subsystem may include a vehicle position determination system, an enforcement system, a loop detection system, or other such subsystems.