Driverless wireless module
US-2024430346-A1 · Dec 26, 2024 · US
RF device and method with improved active load modulation capability
US9401739B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9401739-B2 |
| Application number | US-201414321433-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 1, 2014 |
| Priority date | Jul 23, 2013 |
| Publication date | Jul 26, 2016 |
| Grant date | Jul 26, 2016 |
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Abstract
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There is described an RF bidirectional communication device utilizing active load modulation, the device comprising (a) a resonance circuit including an antenna ( 326 ), and (b) a control unit ( 322 ) for controlling communication of the device, including switching between a transmission mode and a receiving mode, wherein the control unit is adapted to (c) modify a configuration of the resonance circuit such that the resonance circuit has a first resonance frequency (f 0 ) when the device is in the transmission mode and a second resonance frequency (f 0 +Δf) when the device is in the receiving mode, and (d) modify the configuration of the resonance circuit such that a Q-factor of the resonance circuit is periodically decreased while the device is in the transmission mode. There is also described a corresponding method and a system comprising a RF device and a reader/writer device. Furthermore, there is described a computer program and a computer program product.
First claim
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The invention claimed is: 1. An RF bidirectional communication device utilizing active load modulation, the device comprising: a resonance circuit including an antenna, and a control unit, including a circuit, for controlling communication of the device, including switching between a transmission mode and a receiving mode, wherein the control unit is configured and arranged with the resonance circuit to modify a configuration of the resonance circuit such that the resonance c…
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Frequently asked questions
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- What does patent US9401739B2 cover?
- There is described an RF bidirectional communication device utilizing active load modulation, the device comprising (a) a resonance circuit including an antenna ( 326 ), and (b) a control unit ( 322 ) for controlling communication of the device, including switching between a transmission mode and a receiving mode, wherein the control unit is adapted to (c) modify a configuration of the resonanc…
- Who is the assignee on this patent?
- Nxp Bv
- What technology area does this patent fall under?
- Primary CPC classification H04B1/44. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 26 2016 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).