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.:

US 7539574 B1

PDF
Full Text
Expired
Date of Patent:
May. 26, 2009

Filed:

Mar. 03, 2006
Applicants:

Kenji Takashima, Obu, JP;

Wataru Sugiura, Anjo, JP;

Inventors:

Kenji Takashima, Obu, JP;

Wataru Sugiura, Anjo, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

With respect to a connection road linked with a rotary included in a guidance route, a vehicular navigation system acquires a dummy link that is defined to extend towards an inside of the rotary based on road map data. An advancing direction at the rotary is computed by using an angle defined by two dummy links with respect to both an entering road being the connection road on which the vehicle is to approach the rotary and an exiting road being the connection road on which the vehicle is to recede from the rotary. Guidance information at the rotary is outputted based on the computed advancing direction when the vehicle approaches the rotary.


Find Patent Forward Citations

Takashima, Kenji. (2009). Vehicular navigation system (U.S. Patent No. 7539574). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7539574

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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