NFC device for contactless communication
First Claim
Patent Images
1. A Near Field Communication (NFC) device for contactless communication comprising:
- a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data; and
an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal,wherein connection points of the antenna are further connected to inputs of switches, the outputs of the switches being switchable between ground potential and inputs of a rectifier, the outputs of the rectifier being fed to power supply rails of the NFC device.
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Abstract
A Near Field Communication (NFC) device for contactless communication includes a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data, an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal, and wherein connection points of the antenna are further connected to inputs of switches, the outputs of these switches being switchable between ground potential and inputs of a rectifier, the outputs of the rectifier being fed to power supply rails of the NFC device.
10 Citations
20 Claims
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1. A Near Field Communication (NFC) device for contactless communication comprising:
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a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data; and an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal, wherein connection points of the antenna are further connected to inputs of switches, the outputs of the switches being switchable between ground potential and inputs of a rectifier, the outputs of the rectifier being fed to power supply rails of the NFC device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A Near Field Communication (NFC) device for contactless communication comprising:
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a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data; and an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal, wherein connection points of the antenna are further connected to inputs of switches, the outputs of the switches being switchable between either connected to or not connected to inputs of a rectifier, the outputs of the rectifier being fed to power supply rails. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A Near Field Communication (NFC) device for contactless communication comprising:
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a transmitter being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data; and an antenna having an inductor, which antenna is connected to and driven by the transmitter with the modulated carrier signal, wherein connection points of the antenna are further connected to inputs of switches, the outputs of the switches being switchable between either connected to or not connected to inputs of a circuit device, the outputs of the circuit device being fed to power supply rails. - View Dependent Claims (17, 18, 19, 20)
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Specification