Methods and systems for generating lane line and road edge data using empirical path distributions
US-12181305-B2 · Dec 31, 2024 · US
Curved-section-information supplying apparatus and curved-section-information supplying method
US9109919B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109919-B2 |
| Application number | US-201414314504-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2014 |
| Priority date | Aug 26, 2013 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A curved-section-information supplying apparatus includes: a clothoid-section identifying unit that identifies a clothoid section included in a curved section of a road; a clothoid-coefficient obtaining unit that obtains a clothoid coefficient for a clothoid curve representing a shape of the clothoid section identified by the clothoid-section identifying unit; and a radius-of-curvature calculating unit that calculates a radius of curvature at a position at a travel distance in the clothoid section, based on the clothoid coefficient and a curve length from a start point of the clothoid curve, the curve length corresponding to the travel distance from a start point of the clothoid section, to supply curved-section information based on the radius of curvature at the position at the travel distance in the clothoid section.
First claim
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What is claimed is: 1. A curved-section-information supplying apparatus that supplies curved-section information regarding a clothoid section included in a curved section of a road, the curved-section-information supplying apparatus comprising: a clothoid-section identifying means for identifying a clothoid section included in a curved section of a road; a clothoid-coefficient obtaining means for obtaining a clothoid coefficient for a clothoid curve representing a shape of the c…
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Physics · mapped topic
Physics · mapped topic
- G01C21/3658Primary
Physics · mapped topic
Physics · mapped topic
- G01C21/3626Primary
Physics · mapped topic
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- What does patent US9109919B2 cover?
- A curved-section-information supplying apparatus includes: a clothoid-section identifying unit that identifies a clothoid section included in a curved section of a road; a clothoid-coefficient obtaining unit that obtains a clothoid coefficient for a clothoid curve representing a shape of the clothoid section identified by the clothoid-section identifying unit; and a radius-of-curvature calculat…
- Who is the assignee on this patent?
- Alpine Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification G01C21/3658. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).