Moving object identification method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Jan 8, 1998
filing date -
Nov 13, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An IC card (107) sends its identification code in units of one bit in response to a question from a controller (103). The controller sends back to the IC card the received one bit of the identification code. The IC card compares the received and sent bits. If both are equal, the IC card sends the next one bit to the controller and if not, refrains from sending the next one bit. Thus, even when the number of IC cards which are to be identified and the number of IC cards which send their identification codes are simultaneously large, a reduction in the identification efficiency is suppressed to within a small value.
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