Environment-based RFID IC behavior

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12125364
SERIAL NO

18490786

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Importance

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Abstract

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RFID ICs sense and indicate changes in their surrounding environment, such as changes in temperature, humidity, chemical presence, RF signals, and similar. An RFID IC indicates when a significant environmental change has occurred, for example by adjusting the value of a flag, writing data to memory, transmitting a message to an external entity, exiting a sleep state, and/or responding repeatedly to an inventorying reader. In some cases, RFID IC actively notifies an external entity that a significant environmental change has been sensed. For example, RFID IC may alert the external entity by participating in a special inventory process meant for RFID ICs sending environmental change. The RFID IC may alert the external entity by interjecting itself into an inventory round, re-participating in an inventory round, refraining from entering a sleep state after inventorying, and/or adjusting timing of a scheduled reply to communicate with an RFID reader ahead of schedule.

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Patent Owner(s)

Patent OwnerAddress
IMPINJ INC701 N 34TH ST SUITE 300 SEATTLE WA 98103

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Diorio, Christopher J Shoreline, US 270 5595
Heinrich, Harley Snohomish, US 35 442
Hyde, John D Corvallis, US 73 1508
Peach, Charles J T Seattle, US 16 172
Robshaw, Matthew Seattle, US 44 686
Stanford, Theron Seattle, US 51 576
Wu, Tan Mau Seattle, US 26 275

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