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:
Jan. 02, 2024

Filed:

Mar. 26, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Hitoshi Shimizu, Tokyo, JP;

Tatsushi Matsubayashi, Tokyo, JP;

Yusuke Tanaka, Tokyo, JP;

Takuma Otsuka, Tokyo, JP;

Hiroshi Sawada, Tokyo, JP;

Tomoharu Iwata, Tokyo, JP;

Naonori Ueda, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/34 (2006.01); G01C 21/36 (2006.01); G08G 1/065 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3492 (2013.01); G01C 21/3691 (2013.01); G08G 1/065 (2013.01);
Abstract

The present disclosure relates to an apparatus and methods of estimating a traffic volume of moving objects. In particular, the present disclosure estimates the traffic volume based on amounts of traffic volume of the moving objects observed at observation points based on a routing matrix and a visitor matrix. The routing matrix indicates whether moving objects that pass through specific waypoints are to be observed at an observation point. The visitor matrix indicates whether a moving object departing or arriving at the observation point. The present disclosure enables estimating a traffic volume of moving objects on various routes based on observed data with errors in data and varying lengths in observation periods.


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