Radio-frequency identification (rfid) capacitance liquid measurement tag system
US-2024311609-A1 · Sep 19, 2024 · US
Method and system for controlling RFID transponder response waiting periods
US8928461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928461-B2 |
| Application number | US-59772805-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 2, 2005 |
| Priority date | Feb 6, 2004 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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The invention describes an arbitration management method and system for use in identifying RFID transponders or tags which each transmit a response signal to a reader within a respective waiting period the maximum duration of which can be adjusted. The maximum duration is determined by a random number transmitted to a counter along a number of data lines, at least one of the data lines being provided with logic gates which block or permit data line signals reaching the binary inputs of the counter to control the maximum length of the waiting period.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of identifying a plurality of transponders in an interrogation process comprising: transmitting an interrogation signal to the transponders; determining a proportion of collisions and a proportion of white space; receiving a response signal from each transponder at a time within a respective waiting period the maximum duration of which is adjustable, wherein the transponder dynamically alters the maximum duration by at least increasing or…
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Physics · mapped topic
Physics · mapped topic
- G06K19/0723Primary
Physics · mapped topic
Physics · mapped topic
- G01S13/02Primary
Physics · mapped topic
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- What does patent US8928461B2 cover?
- The invention describes an arbitration management method and system for use in identifying RFID transponders or tags which each transmit a response signal to a reader within a respective waiting period the maximum duration of which can be adjusted. The maximum duration is determined by a random number transmitted to a counter along a number of data lines, at least one of the data lines being pr…
- Who is the assignee on this patent?
- Turner Christopher Gordon Gervase, Mcmurray John, Zih Corp
- What technology area does this patent fall under?
- Primary CPC classification G06K19/0723. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).