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. 26, 2007
Filed:
Aug. 30, 2004
Hisayuki Watanabe, Iwaki, JP;
Hisayuki Watanabe, Iwaki, JP;
Alpine Electronics, Inc., Tokyo, JP;
Abstract
A signal processing unit of a radio communication section of a vehicle-mounted device mounted on a vehicle broadcasts first sets of data, each set of data including a vehicle speed and a traveling direction of the vehicle at a predetermined period when the vehicle changes the vehicle speed or the traveling direction. The signal processing unit broadcasts second sets of data including the current vehicle position, the vehicle speed, and the traveling direction of the vehicle at predetermined timing. When receiving the first data and the second data from a peripheral vehicle, the signal processing unit calculates a position of the peripheral vehicle in accordance with the first and second sets of data.