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US-9800288-B2 · Oct 24, 2017 · US
Method and device for determining the distance between a radio beacon and an onboard unit
US9019151B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9019151-B2 |
| Application number | US-201113701490-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2011 |
| Priority date | Dec 7, 2010 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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System and method for determining the distance between a radio beacon and a vehicle device passing in the radio beacon, in a road toll system. A signal having a known temporal profile is emitted by one of the radio beacon and vehicle device. The signal is captured in the other component during the passing of the device and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recoded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification are determined, the zones displaying a frequency modification below a second threshold value are searched for; the recorded frequency profile is scaled in such a way that the distant wave zones take the predetermined values; and the distance is determined from the scaled frequency profile.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for determining a distance between a radio beacon and an onboard unit passing the radio beacon in a road toll system, wherein at least one of the radio beacon and the onboard unit emits a signal with a known frequency curve over time, the method comprising: receiving the signal by the other of the radio beacon and the onboard unit during the passing and recording the curve of the frequency of the received signal over time, wherein the recordin…
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Physics · mapped topic
Physics · mapped topic
- G01S11/10Primary
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9019151B2 cover?
- System and method for determining the distance between a radio beacon and a vehicle device passing in the radio beacon, in a road toll system. A signal having a known temporal profile is emitted by one of the radio beacon and vehicle device. The signal is captured in the other component during the passing of the device and the temporal profile of the frequency is recorded in relation to the kno…
- Who is the assignee on this patent?
- Smely Dieter, Winkler Josef, Nagy Oliver, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification G01S11/10. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 28 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).