RFID device tester and method
First Claim
1. A method of testing a plurality of radio frequency identification (RFID) devices, comprising:
- substantially continuously moving a web of that includes the RFID devices;
at the same time, substantially continuously moving at least a portion of a test apparatus that includes plural RFID device testers such that at least some of the RFID device testers maintain static relative spatial relationships with respective of the RFID devices for respective periods of time; and
for each of the RFID devices, testing the RFID device with one of the RFID device testers while the RFID device is in a static spatial relationship with the one of the RFID device testers.
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Accused Products
Abstract
Multiple RFID devices may be tested by moving a sheet, roll, or web of the devices in conjunction with a test apparatus having multiple RFID device testers, so that the RFID devices to be tested are each spatially static with regard to one of the RFID device testers for a period of time, during which testing may be performed. The device testers may be arrayed along the circumference of a circular test wheel or roller, or may be arrayed along the perimeter of a flexible belt. The coupling between the RFID devices and the RFID device testers may be capacitive. By utilizing short-range capacitive coupling, difficulties caused by simultaneous activation of multiple RFID devices may be reduced or avoided.
94 Citations
22 Claims
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1. A method of testing a plurality of radio frequency identification (RFID) devices, comprising:
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substantially continuously moving a web of that includes the RFID devices; at the same time, substantially continuously moving at least a portion of a test apparatus that includes plural RFID device testers such that at least some of the RFID device testers maintain static relative spatial relationships with respective of the RFID devices for respective periods of time; and for each of the RFID devices, testing the RFID device with one of the RFID device testers while the RFID device is in a static spatial relationship with the one of the RFID device testers. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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3. The method of claim wherein 2, wherein the moving the at least a portion of the test apparatus includes rotating at least part of the test apparatus.
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14. A method of testing a radio frequency identification (RFID) device, comprising:
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capacitively coupling an RFID device tester to an antenna of the RFID device; generating an outgoing signal from the RFID device tester; using the outgoing signal to power the RFID device; generating a return signal in the RFID device; and detecting a return signal, via a reader that is part of the tester; wherein the RFID device tester includes coupling elements electrically connected to the reader; wherein the antenna of the RFID device includes antenna elements; wherein the capacitively coupling includes aligning the coupling elements with respective of the antenna elements; wherein the coupling elements are part of a turning part; wherein the RFID device is part of a roll material; and wherein the aligning includes bringing the portion of the roll material having the RFID device into alignment with the coupling elements as the turning part turns. - View Dependent Claims (15, 16, 17)
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18. A radio frequency identification (RFID) device tester comprising:
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a reader; a pair of electrically-conductive coupling elements; a pair of transmission lines electrically connecting respective of the coupling elements to the reader; and a resistor connected to both of the transmission lines, between the reader and the coupling elements; wherein the coupling elements are on an outer surface of a turning part. - View Dependent Claims (19, 20, 21, 22)
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Specification