Invention Grant
US09000894B2 Method and apparatus for improving reception of an RFID tag response
有权
改善RFID标签响应接收的方法和装置
- Patent Title: Method and apparatus for improving reception of an RFID tag response
- Patent Title (中): 改善RFID标签响应接收的方法和装置
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Application No.: US13563010Application Date: 2012-07-31
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Publication No.: US09000894B2Publication Date: 2015-04-07
- Inventor: Yiu Kwong Chan , Aviv Shacher
- Applicant: Yiu Kwong Chan , Aviv Shacher
- Applicant Address: US NY Holtsville
- Assignee: Symbol Technologies, Inc.
- Current Assignee: Symbol Technologies, Inc.
- Current Assignee Address: US NY Holtsville
- Main IPC: H04Q5/22
- IPC: H04Q5/22 ; G06K7/00 ; G06K7/10

Abstract:
A method and apparatus for improving reception of responsive RFID signals is provided. The method includes transmitting a plurality of interrogation signals each having a different polarization to activate one or more RFID tags. Responsive signals from the RFID tags are analyzed for receive symbol quality data to select a transmit polarization subset. These polarizations are then used for transmitting further interrogation signals to the RFID tags. The apparatus includes a dual element orthogonal radiator coupled to a transmitter and receiver. A processor controls the transmitter and receiver to transmit a series of RFID interrogation signals each having a different polarization, and receive a series of responsive signals from one or more RFID tags. The responsive signals are analyzed to select a particular a transmit polarization subset that will improve reception of future responsive signals from the RFID tags.
Public/Granted literature
- US20140035731A1 METHOD AND APPARATUS FOR IMPROVING RECEPTION OF AN RFID TAG RESPONSE Public/Granted day:2014-02-06
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