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.

Date of Patent:
Apr. 26, 2011

Filed:

Feb. 22, 2006
Applicants:

Kazumitsu Kushida, Wako, JP;

Mutsumi Katayama, Wako, JP;

Inventors:

Kazumitsu Kushida, Wako, JP;

Mutsumi Katayama, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vehicle recognition allowing device is provided which allows the recognition of a traveling state of a vehicle, including a two-wheeled vehicle to be recognized and does not require a sophisticated image processing function. When a change in the speed, traveling state or both of the vehicle is detected by a traveling state detecting part, flickering frequencies of respective infrared ray markers are increased or decreased to a frequency corresponding to the change in speed, traveling state or both. Alternatively, flickering duty ratios of the respective infrared ray markers can be changed to a duty ratio corresponding to the new speed, traveling state or both.


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