Methods and systems for testing radio frequency identification (RFID) tags having multiple antennas
First Claim
1. A method of testing antenna(s) of a radio frequency identification (RFID) tag having a first antenna coupled to a first antenna port and a second antenna coupled to a second antenna port, comprising:
- (a) receiving a test command signal from a reader;
(b) generating first and second test control signals based on the test command signal;
(c) selectively coupling an information signal to the first antenna port based on the first test control signal; and
(d) selectively coupling the information signal to the second antenna port based on the second test control signal.
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Accused Products
Abstract
Methods, systems, and apparatuses for testing antenna(s) of a radio frequency identification (RFID) tag are described. A reader transmits a test command signal to a RFID tag having a plurality of antennas. Each antenna of the plurality of antennas is coupled to a respective antenna port. The tag processes the test command signal to determine which one or more of the plurality of antennas is to be tested. The tag couples an information signal to the antenna port(s) corresponding with the antenna(s) to be tested. For example, the tag may include enabling elements that selectively couple the information signal to respective antenna ports based on respective test control signals. The RFID tag generates the test control signals based on the test command signal. The reader awaits receipt of the information signal from the RFID tag.
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Citations
25 Claims
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1. A method of testing antenna(s) of a radio frequency identification (RFID) tag having a first antenna coupled to a first antenna port and a second antenna coupled to a second antenna port, comprising:
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(a) receiving a test command signal from a reader;
(b) generating first and second test control signals based on the test command signal;
(c) selectively coupling an information signal to the first antenna port based on the first test control signal; and
(d) selectively coupling the information signal to the second antenna port based on the second test control signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of testing antenna(s) of a radio frequency identification (RFID) tag having an integrated circuit, a first antenna, and a second antenna, comprising:
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transmitting a test command signal to the radio frequency identification (RFID) tag; and
awaiting receipt of an information signal in response to said transmitting the test command signal;
wherein receipt of the information signal indicates that the information signal is coupled to the first antenna; and
wherein lack of receipt of the information signal indicates that the information signal is not coupled to the first antenna. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A radio frequency identification (RFID) tag reader configured to test antennas of an RFID tag having a first antenna port coupled to a first antenna and a second antenna port coupled to a second antenna, comprising:
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means for generating a test command signal including a parameter, wherein the parameter indicates which one of the first antenna or the second antenna is to be tested;
means for transmitting the test command signal to the RFID tag; and
means for receiving an information signal from the RFID tag in response to the transmitted test command signal. - View Dependent Claims (15, 16, 17)
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18. A radio frequency identification (RFID) tag, comprising:
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a first antenna port coupled to a first antenna;
a second antenna port coupled to a second antenna;
a first enabling element configured to selectively couple an information signal to the first antenna port based on a first test control signal;
a second enabling element configured to selectively couple the information signal to the second antenna port based on a second test control signal;
wherein the first and second test control signals are based on a test command signal received from a tag reader. - View Dependent Claims (19, 20, 21, 22)
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23. A method of testing antennas of a radio frequency identification (RFID) tag having a first antenna coupled to a first antenna port and a second antenna coupled to a second antenna port, comprising:
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receiving first and second test control signals and an information signal;
coupling the information signal to the first antenna port based on the first test control signal; and
coupling the information signal to the second antenna port based on the second test control signal. - View Dependent Claims (24, 25)
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Specification