Near field RF communicators and near field communications enabled devices
First Claim
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1. A near field RF communicator comprising:
- an antenna configured and operable to produce an RF signal to enable inductive coupling via a magnetic field of the RF signal between the antenna and another near field RF communicator in near field range; and
a signal generator configured and operable to generate a digital drive signal to cause the antenna to produce the RF signal, wherein the signal generator comprises a selector configured and operable to select a plurality of digital sequences to provide a plurality of digital signals from which the digital drive signal is generated.
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Abstract
A near field RF communicator has: an antenna operable to generate an RF signal to enable inductive coupling via the magnetic field of the RF signal between the antenna and another near field RF communicator or RF transponder in near field range; and a signal generator operable to generate a multi-level digital sine wave drive signal to drive the antenna to generate the RF signal, wherein the signal generator comprises a selector operable to select one or more digital sequences to provide one or more digital signals from which the digital sine wave drive signal is generated.
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Citations
20 Claims
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1. A near field RF communicator comprising:
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an antenna configured and operable to produce an RF signal to enable inductive coupling via a magnetic field of the RF signal between the antenna and another near field RF communicator in near field range; and a signal generator configured and operable to generate a digital drive signal to cause the antenna to produce the RF signal, wherein the signal generator comprises a selector configured and operable to select a plurality of digital sequences to provide a plurality of digital signals from which the digital drive signal is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A near field RF communicator comprising:
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an antenna operable to produce an RF signal to enable inductive coupling via a magnetic field of the RF signal between the antenna and another near field RF communicator or RF transponder in near field range; and a signal generator operable to generate a multi-level digital drive signal representing a sine wave to cause the antenna to produce the RF signal, wherein the signal generator comprises a selector operable to select plurality of digital sequences to provide plurality of digital signals from which the digital drive signal is generated.
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Specification