Electronic device with near-field antenna operating through display
US-11894600-B2 · Feb 6, 2024 · US
Mobile wireless communications device including NFC antenna matching control circuit and associated methods
US8934837B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8934837-B2 |
| Application number | US-201313733487-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 3, 2013 |
| Priority date | Jan 3, 2013 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A mobile wireless communications device includes a near-field communications (NFC) transceiver, NFC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit is coupled to the NFC antennas to determine capacitance values thereof. A processor operates the antenna switch circuit based upon the received signal strength and the capacitance values.
First claim
Opening claim text (preview).
That which is claimed is: 1. A mobile wireless communications device comprising: a near-field communications (NFC) transceiver configured to generate a received signal strength based on a received signal from an adjacent NFC device; a plurality of NFC antennas; and an NFC control circuit comprising an antenna switch circuit coupled between said NFC transceiver and said plurality of NFC antennas, a capacitance sensing circuit coupled to said plurality of NFC antennas and con…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B5/02Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8934837B2 cover?
- A mobile wireless communications device includes a near-field communications (NFC) transceiver, NFC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit …
- Who is the assignee on this patent?
- Research In Motion Ltd, Blackberry Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B5/02. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 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).