Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2007-10-30
2007-10-30
Zimmerman, Brian (Department: 2612)
Communications: electrical
Selective
Interrogation response
C340S870030, C340S010400
Reexamination Certificate
active
10915651
ABSTRACT:
A method for identifying objects using an interrogation device on a communication channel is disclosed. Each object has an identification number in the form of a plurality of digits and has the ability to communicate to the interrogating device at least two different predetermined responses to indicate the value of the digits contained in its identification number. The objects are activated, and a single digit from currently activated objects is interrogated, and each object sends one of the predetermined responses. The value of the received responses is recorded, and those objects which responded with any but one of the at least two different messages are signaled to enter a deactivated state when two of the at least two different messages are received. The sequence of responses transmitted and received thus far for those objects placed in the deactivated state are recorded. Objects will no longer respond until the step of activating is repeated. The steps are selectively repeated until all of the predetermined responses are obtained for the complete identification number of at least one of the objects. The steps may thereafter be selectively repeated until the identification number of each of the objects is obtained.
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E-TAG Systems, Inc.
Loudermilk & Associates
Nguyen Nam
Zimmerman Brian
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