Method and device for managing information exchange between nfc controller and auxiliary elements
US-2024114324-A1 · Apr 4, 2024 · US
RF switched RFID multiplexer
US8941471B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941471-B2 |
| Application number | US-22376906-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 15, 2006 |
| Priority date | Feb 15, 2006 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A radiofrequency identification (RFID) multiplexer, which may be in a network, interprets an RF signal from an RFED reader as RFE) tag interrogation data. A single cable directs an RF signal from the RFID reader and RF control signals and/or RF power through the multiplexer. An RF sampler may be coupled to the cable; and an RF detector detects the RF signal from the cable via the RF sampler. A data decoder decodes and interprets the RF signal as the RFID tag interrogation data and forwards the RFID tag interrogation data to a control logic circuit as a MUX channel-change command. The logic circuit and decoder may be combined in a microcontroller, and an RF backscatter modulator coupled to the cable enables reverse communication with the RFID reader to determine whether another RFID multiplexer is coupled to the RFID multiplexer.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for controlling a multiplexer in an RFID network for communicating with a plurality of RFID tags, comprising transmitting from an RFID reader one or more RFID tag interrogation signals, each consisting of an RF signal having a data format and modulation consistent with an RFID protocol for interrogating an RFID tag so as to obtain an RFID tag response, said RFID tag interrogation signals each including an RFID tag identification number to specify a…
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Physics · mapped topic
- G06K7/0008Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8941471B2 cover?
- A radiofrequency identification (RFID) multiplexer, which may be in a network, interprets an RF signal from an RFED reader as RFE) tag interrogation data. A single cable directs an RF signal from the RFID reader and RF control signals and/or RF power through the multiplexer. An RF sampler may be coupled to the cable; and an RF detector detects the RF signal from the cable via the RF sampler. A …
- Who is the assignee on this patent?
- Shafer Gary Mark, Tyco Fire & Security Gmbh
- What technology area does this patent fall under?
- Primary CPC classification G06K7/0008. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 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).