Computing emission rate from gas density images
US-2024420311-A1 · Dec 19, 2024 · US
Apparatus and method for detecting road surface properties
US8941739B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941739-B2 |
| Application number | US-201213432527-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2012 |
| Priority date | Dec 1, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Disclosed is a technique for detecting a road surface property. More specifically, the technique includes a reflectivity table that stores a degree of reflectivity of a rainy road relative to a reference reflectivity and a degree of reflectivity of a snowy road relative to the reference reflectivity. A reflection measurement unit measures a reflection which is the amount of a laser beam that is emitted through a light emitting unit of a laser sensor, reflected from the road surface, and received by a light receiving unit, and a reflectivity calculation unit calculates a degree of reflectivity for the road in front of the vehicle via a ratio of the measured reflection and the reference reflectivity. A road surface property determination unit then detects the corresponding road surface property based on the reflectivity table.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus for detecting a road surface property, the apparatus comprising: a memory configured to store a reflectivity table that includes a degree of reflectivity of a rainy road relative to a reference reflectivity, and a degree of reflectivity of a snowy road relative to the reference reflectivity, and a degree of reflectivity of a dry road relative to the reference reflectivity and store a plurality of program instructions; a processor configured to…
Assignees
Inventors
Classifications
- G01S17/88Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8941739B2 cover?
- Disclosed is a technique for detecting a road surface property. More specifically, the technique includes a reflectivity table that stores a degree of reflectivity of a rainy road relative to a reference reflectivity and a degree of reflectivity of a snowy road relative to the reference reflectivity. A reflection measurement unit measures a reflection which is the amount of a laser beam that is…
- Who is the assignee on this patent?
- Yoo Hyun Jae, Hyundai Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01S17/88. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 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).