Communications: electrical – Continuously variable indicating – With meter reading
Patent
1998-07-06
1999-11-30
Zimmerman, Brian
Communications: electrical
Continuously variable indicating
With meter reading
342 42, H04Q 100
Patent
active
059950196
ABSTRACT:
A method of selecting groups of radio frequency RF transponders (tags) for communication between a base station and the tags. The tags are selected into groups according to a physical attribute of the signal sent by the tags to the base station, or according to the physical response of the tags to a physical attribute of the signal sent from the base station to the tags. Communication with the tags is thereby simplified, and the time taken to communicate with the first tag is markedly reduced.
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Chieu Trieu Can
Cofino Thomas Anthony
Heinrich Harley Kent
Sousa Paul Jorge
Zai Li-Cheng Richard
Hodgson R.T.
Intermec I.P. Corp
Zimmerman Brian
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