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Communication methods, systems, apparatus, and devices involving RF tag registration

Patent ·
OSTI ID:941121

One technique of the present invention includes a number of Radio Frequency (RF) tags that each have a different identifier. Information is broadcast to the tags from an RF tag interrogator. This information corresponds to a maximum quantity of tag response time slots that are available. This maximum quantity may be less than the total number of tags. The tags each select one of the time slots as a function of the information and a random number provided by each respective tag. The different identifiers are transmitted to the interrogator from at least a subset of the RF tags.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
7,362,212
Application Number:
10/950,047
OSTI ID:
941121
Country of Publication:
United States
Language:
English

References (3)

Dynamic power management in wireless sensor networks journal January 2001
A generic multielement microsystem for portable wireless applications journal January 1998
Networking reconfigurable smart sensors conference February 2001

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