RFID System, Reader, Control, Program and Transmission Method
First Claim
Patent Images
1. An RFID system, comprising:
- means for replacing each of a role of an antenna for transmitting an interrogation wave and a role of an antenna for transmitting a power supply wave with the other.
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Abstract
A reader (100-1) transmits an interrogation wave to an RFID tag (200) through an antenna (102-1). A reader (100-2) transmits a power supply wave to the RFID tag (200) through an antenna (102-2). The waves to be transmitted in prescribed timing are switched, and the reader (100-1) transmits the power supply wave to the RFID tag (200) through the antenna (102-1). The reader (100-2) transmits the interrogation wave to the RFID tag (200) through the antenna (102-2).
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Citations
12 Claims
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1. An RFID system, comprising:
means for replacing each of a role of an antenna for transmitting an interrogation wave and a role of an antenna for transmitting a power supply wave with the other. - View Dependent Claims (2)
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3. An RFID system, said RFID system comprising:
at least two transmitting means for transmitting one of an interrogation wave and a power supply wave to an RFID tag, wherein at least one interrogation wave and at least one power supply wave are transmitted to the RFID tag by employing said two transmitting means or more, and the waves, which said transmitting means transmit, are mutually switched at a predetermined timing. - View Dependent Claims (4)
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5. An RFID system, comprising:
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at least two readers for transmitting one of an interrogation wave and a power supply wave to an RFID tag; and a controlling means for taking a control in such a manner that controlling said readers allows at least one interrogation wave and at least one power supply wave to be transmitted to the RFID tag, and the waves, which said readers transmit, to be mutually switched at a predetermined timing. - View Dependent Claims (6)
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7. A reader in an RFID system, comprising:
a transmitting means for transmitting one of an interrogation wave and a power supply wave to an RFID tag based upon a switchover control. - View Dependent Claims (8)
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9. A computer readable medium storing a control program of an RFID system, wherein, when executed by an i.p.d., causing the information processing device to perform the steps of:
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causing at least two transmitting means, each of which transmits one of an interrogation wave and a power supply wave to an RFID tag, to transmit at least one interrogation wave and at least one power supply wave; and switching the waves, which said transmitting means transmit, at a predetermined timing. - View Dependent Claims (10)
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11. A transmission method of transmitting an interrogation wave and a power supply wave to an RFID tag, comprising:
replacing each of a role of an antenna for transmitting the interrogation wave and a role of an antenna for transmitting the power supply wave with other, thereby to transmit the interrogation wave and the power supply wave. - View Dependent Claims (12)
Specification