Object monitoring, locating, and tracking method employing RFID devices
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United States of America Patent
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Sep 9, 2008
Grant Date -
Jan 4, 2007
app pub date -
Aug 5, 2005
filing date -
Aug 26, 2004
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Abstract
A method for monitoring a container having an RFID device interior comprises periodically transmitting messages including unique identifying information and receiving messages transmitted by the RFID device interior the container by a receiving device exterior the container. Some messages transmitted when the container is closed are not received by the receiving device, and some messages transmitted when the container is not closed are received. The method comprises storing and/or relaying the received messages and determining from the number of messages received from the RFID device that are stored and/or relayed whether the container has or has not been opened. The method may also comprise transmitting the messages at two or more power levels and selecting messages that are at the lowest power level that produces at least two corresponding stored and/or relayed messages for determining the location of the RFID device.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- AI TECHNOLOGY;AMERASIA INTERNATIONAL TECHNOLOGY, INC.;AVANTE INTERNATIONAL TECHNOLOGY, INC.;PANASEC CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chu, Cynthia Ting-Wah | Princeton, NJ | 4 | 365 |
Chung, Kevin Kwong-Tai | Princeton, NJ | 95 | 5309 |
Li, Jing Jian | Plainsboro, NJ | 6 | 982 |
Shi, Xiaoming | Highland Park, NJ | 27 | 1362 |
Zou, Ming | Hillsborough, NJ | 26 | 355 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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