Radio and optical identification tags
First Claim
Patent Images
1. An identification tag in a form of a single microcircuit, comprising:
- an optical transceiver;
a radio transceiver;
a memory storing an identification code connected to the optical transceiver and the radio transceiver;
means for operating at least one of the transceivers in receive mode while operating at least one of the transceivers in transmit mode; and
means for transmitting the identification code by the transceiver operating in the transmit mode in response to receiving a predetermined signal by the transceiver operating in the receive mode.
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Accused Products
Abstract
An identification tag is formed with a single microcircuit. The microcircuit includes an optical transceiver, a radio transceiver, both connected to a memory storing an identification code. At least one of the transceivers operates in receive mode, and at least one of the transceivers operates in transmit mode. The identification code is transmitted by the transceiver operating in the transmit mode in response to receiving a predetermined signal by the transceiver operating in the receive mode.
40 Citations
20 Claims
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1. An identification tag in a form of a single microcircuit, comprising:
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an optical transceiver;
a radio transceiver;
a memory storing an identification code connected to the optical transceiver and the radio transceiver;
means for operating at least one of the transceivers in receive mode while operating at least one of the transceivers in transmit mode; and
means for transmitting the identification code by the transceiver operating in the transmit mode in response to receiving a predetermined signal by the transceiver operating in the receive mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An identification method, comprising:
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storing an identification code in a memory connected to an optical transceiver and an radio transceiver;
operating at least one of the transceivers in receive mode while operating at least one of the transceivers in transmit mode; and
transmitting the identification code by the transceiver operating in the transmit mode in response to receiving a predetermined signal by the transceiver operating in the receive mode.
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16. An identification tag comprising:
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a memory storing an identification code;
an optical communication part for receiving a predetermined optical signal; and
a radio communication part for transmitting the identification code stored in the memory when receiving the predetermined optical signal by the optical communication part. - View Dependent Claims (17)
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18. An identification method, comprising:
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receiving a predetermined optical signal at an optical communication part in an identification tag; and
transmitting an identification code stored in memory by a radio communication part when receiving the predetermined optical signal by the optical communication part. - View Dependent Claims (19)
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20. An identification reader, comprising:
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an optical communication part transmitting a predetermined optical signal; and
a radio communication part receiving an identification code transmitted when receiving the predetermined optical signal by an identification tag.
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Specification