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:
Aug. 11, 2009
Filed:
Jun. 01, 2005
Mark A. Schwartz, River Falls, WI (US);
Mark A. Schwartz, River Falls, WI (US);
Global Traffic Technologies, LLC, Oakdale, MN (US);
Abstract
An arrangement for requesting preemption from a vehicle is used in a traffic control system. The arrangement for requesting preemption includes a protocol circuit, a signal control generation circuit, and an optical source. The protocol circuit is adapted to provide a plurality of communication protocols, wherein a plurality of the communication protocols communicate encoded data. The signal control generation circuit is adapted to generate an output signal in accordance with at least one of the plurality of communication protocols. The optical source is adapted to transmit light pulses from the vehicle, wherein the light pulses are generated from the output signal and include the encoded data for said at least one of the plurality of communication protocols.