作者: Gregory M Smith
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摘要: A system and method for initiating communication between a controller selected one or other subset of multiple transponders in common RF field which each transponder has unique, (or commonly unique) preprogrammed ID number. The transmits series commands/questions to the they either respond, do not based on their number, with non-responding entering reset state. respond such way that, if can recognize that at least responded and, individual responses, is required determine how many have responded. Through use communications disclosed, sequence commands responses single out group upon its particular