Invention Grant
US07932814B2 Method and system to determine physical parameters as between a RFID tag and a reader
有权
确定RFID标签与阅读器之间物理参数的方法和系统
- Patent Title: Method and system to determine physical parameters as between a RFID tag and a reader
- Patent Title (中): 确定RFID标签与阅读器之间物理参数的方法和系统
-
Application No.: US11867273Application Date: 2007-10-04
-
Publication No.: US07932814B2Publication Date: 2011-04-26
- Inventor: John R Tuttle
- Applicant: John R Tuttle
- Applicant Address: US NY Mt. Kisco
- Assignee: Round Rock Research, LLC
- Current Assignee: Round Rock Research, LLC
- Current Assignee Address: US NY Mt. Kisco
- Agency: Lerner, David, Littenburg, Krumholz & Mentlik, LLP
- Main IPC: H04Q5/22
- IPC: H04Q5/22
Abstract:
A method and system to determine physical parameters as between a RFID tag and a reader. At least some of the illustrative embodiments are methods comprising generating an antenna feed signal, and transmitting a first electromagnetic wave to a radio frequency device (by coupling the antenna feed signal to a reading antenna), receiving a backscattered electromagnetic wave from the radio frequency device to create a received signal, calculating a combined signal based on the antenna feed signal and received signal, and determining relative velocity between the radio frequency device and the reading antenna based on the combined signal.
Public/Granted literature
- US20090091454A1 Method and System to Determine Physical Parameters as Between A RFID Tag and a Reader Public/Granted day:2009-04-09
Information query
