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. 20, 2007
Filed:
Jun. 16, 2005
James R. Chintyan, Davison, MI (US);
James R. Chintyan, Davison, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A system and a method for determining a velocity and a direction of travel of a vehicle on a roadway are provided. The method includes selecting a portion of the roadway and determining a cellular phone base station that is within a desired distance from the portion of the roadway, from a plurality of cellular phone base stations. The method further includes inducing a cellular phone base station to transmit a first message to a first global positioning system transceiver unit disposed in a first vehicle. The first message requests a first position coordinate from the first GPS transceiver unit. The method further includes receiving a second message from the first GPS transceiver unit having the first position coordinate and a first time value, and inducing the cellular phone base station to transmit a third message to the first GPS transceiver unit. The third message requests a second position coordinate of the first GPS transceiver unit. The method further includes receiving a fourth message from the first GPS transceiver unit having the second position coordinate and a second time value, and determining a velocity and a direction of travel of the first vehicle based on the first and second position coordinates and the first and second time values.