Methods and systems for use in tracking targets for use in direction finding systems
US-9523758-B2 · Dec 20, 2016 · US
Vehicle direction identification device, vehicle direction identification method and program therefor
US9147347B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9147347-B2 |
| Application number | US-201213610029-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2012 |
| Priority date | Jan 18, 2011 |
| Publication date | Sep 29, 2015 |
| Grant date | Sep 29, 2015 |
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Abstract
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A vehicle direction identification device includes: a frequency analysis unit which analyzes phase of the surrounding sound in each analysis section specified by predetermined frequency regions and time intervals; a sound source direction identification unit which identifies a sound source direction indicating a direction of a sound included in the vehicle sound for each analysis section; a reflection information storage unit which stores (i) state information relating to rates of occurrence each of which are a count of the analysis sections of a corresponding one of the sound source directions, and (ii) reflection patterns each of which includes an estimated vehicle direction which is a vehicle direction associated with a set of the state information; and a vehicle direction identification unit which identifies a vehicle direction by checking the rates of occurrence obtained from an identification result by the sound source direction identification unit against one of the reflection patterns.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle direction identification device which identifies a direction in which a vehicle in a vicinity of a user vehicle is present from vehicle sound that originates from the vehicle in the vicinity and is obtained by a plurality of microphones, the vehicle direction identification device comprising: a frequency analysis unit configured to analyze phase of the vehicle sound in each of a plurality of analysis sections specified by predetermined freque…
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Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9147347B2 cover?
- A vehicle direction identification device includes: a frequency analysis unit which analyzes phase of the surrounding sound in each analysis section specified by predetermined frequency regions and time intervals; a sound source direction identification unit which identifies a sound source direction indicating a direction of a sound included in the vehicle sound for each analysis section; a ref…
- Who is the assignee on this patent?
- Yoshioka Mototaka, Yoshizawa Shinichi, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G01S3/802. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 29 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).