Use of rf signatures to detect moved wireless transmitters
US-2015341894-A1 · Nov 26, 2015 · US
Communication apparatus and communication system
US8958749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958749-B2 |
| Application number | US-3876208-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2008 |
| Priority date | Feb 28, 2007 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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A communication apparatus including a first communicator which communicates with a first other communication apparatus, a detector which detects, with respect to each of the frequency channels, a value of a parameter for evaluating a quality of a communication between the communication apparatuses, a determiner which determines, on the basis of the value of the parameter detected with respect to a corresponding one of the frequency channels by the detector, whether the quality of the communication between the communication apparatuses made by using each of the frequency channels is not less than a first threshold, and a communication controller which sends the first other communication apparatus data by means of the first communicator, once when a good-quality frequency channel is used, and repeatedly a plurality of times when a poor-quality frequency channel is used.
First claim
Opening claim text (preview).
What is claimed is: 1. A communication apparatus comprising: a first communicator which communicates with a first other communication apparatus by using a plurality of frequency channels defined within a frequency band while changing a to-be-used frequency from one to another; a requester which requests the first other communication apparatus to send a test signal with respect to each of the plurality of frequency channels before the communication apparatus sends a data piece to…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B17/0042Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8958749B2 cover?
- A communication apparatus including a first communicator which communicates with a first other communication apparatus, a detector which detects, with respect to each of the frequency channels, a value of a parameter for evaluating a quality of a communication between the communication apparatuses, a determiner which determines, on the basis of the value of the parameter detected with respect t…
- Who is the assignee on this patent?
- Kunii Tadahiro, Brother Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B17/0042. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 17 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).