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US 11,699,056 B2Granted
RFID inlay
AssigneeMurata Manufacturing Co., Ltd.
InventorsNoriyuki Ueki, Noboru Kato
Life of this patent
Estimating the term…
Abstract
An RFID inlay includes an RFID module and an antenna. The RFID module includes an RFIC and an antenna sharing circuit provided between the RFIC and the antenna. The RFIC includes a power receiving terminal to which power induced upon receipt of an electromagnetic wave for power reception is input and a transmitting terminal from which a transmission signal for RFID is output. Moreover, the antenna receives the electromagnetic wave for power reception and generates an electromagnetic wave for RFID.
Claims22
An RFID inlay comprising:
- an RFIC that includes a power receiving terminal that receives power induced upon receipt of an electromagnetic wave for power reception and a transmitting terminal that outputs a transmission signal for RFID;
- an antenna configured to receive the electromagnetic wave for the power reception and to generate an electromagnetic wave for the RFID;
- and
- an antenna sharing circuit that includes:
- at least one inductor and at least one capacitor and that is disposed between the antenna, the power receiving terminal and the transmitting terminal, and
- a switch configured to connect the transmitting terminal to the antenna when the transmission signal for the RFID is transmitted,
- wherein the switch is disposed between the antenna and the transmitting terminal, and no switch is disposed between the antenna and the power receiving terminal.
4 more elements
An RFID inlay comprising:
- an antenna constructed to receive an electromagnetic wave and to generate an output signal for RFID;
- an RFIC that includes a power receiving terminal that receives power induced upon receipt of the electromagnetic wave and a transmitting terminal that outputs a transmission signal for the RFID;
- and
- at least one antenna sharing circuit that includes:
- at least one inductor and at least one capacitor and that couples the antenna to the RFIC and is constructed to configure the antenna as both a power receiving antenna and a signal transmitting antenna, and
- a switch configured to connect the transmitting terminal to the antenna when the transmission signal for the RFID is transmitted,
- wherein the switch is disposed between the antenna and the transmitting terminal, and no switch is disposed between the antenna and the power receiving terminal.
4 more elements
An RFID inlay comprising:
- an RFIC that includes a power receiving terminal that receives power induced upon receipt of an electromagnetic wave for power reception and a transmitting terminal that outputs a transmission signal for RFID;
- an antenna configured to receive the electromagnetic wave for the power reception and to generate an electromagnetic wave for the RFID;
- and
- an antenna sharing circuit disposed between the antenna, the power receiving terminal and the transmitting terminal,
- wherein the antenna sharing circuit includes a switch configured to connect the transmitting terminal to the antenna when the transmission signal for the RFID is transmitted, and
- wherein the switch is disposed between the antenna and the transmitting terminal, and no switch is disposed between the antenna and the power receiving terminal.
3 more elements
An RFID inlay comprising:
- an RFIC that includes a power receiving terminal that receives power induced upon receipt of an electromagnetic wave for power reception and a transmitting terminal that outputs a transmission signal for RFID;
- an antenna configured to receive the electromagnetic wave for the power reception and to generate an electromagnetic wave for the RFID;
- and
- an antenna sharing circuit that includes at least one inductor and at least one capacitor and that is disposed between the antenna, the power receiving terminal and the transmitting terminal,
- wherein:
- the power receiving terminal includes a first power receiving terminal and a second power receiving terminal,
- the transmitting terminal includes a first transmitting terminal and a second transmitting terminal, and
- the antenna sharing circuit comprises:
- a first antenna sharing circuit coupled to the first power receiving terminal and the first transmitting terminal, and
- a second antenna sharing circuit coupled to the second power receiving terminal and the second transmitting terminal.
7 more elements
Dependencies are inferred from the claim text.