LOW POWER WIRELESS CONTROLLER SYSTEMS AND METHODS
First Claim
1. A passive wireless control integrated circuit device, comprising:
- a radio frequency transceiver circuit fabricated on a semiconductor substrate of an integrated circuit device and configured to extract information from a radio signal received by an antenna;
a processor fabricated on the semiconductor substrate and configured to receive the information extracted from the radio signal and to respond to a command encoded in the information; and
a field effect transistor (FET) fabricated on the substrate and operable as a switch, the FET having a gate controlled by the processor, wherein responsive to an activation signal from the processor, the FET is configured to transmit an activation current to an output of the integrated circuit device,wherein the activation current is generated by a power source that is external to the integrated circuit device and the transceiver and processor are powered using energy extracted from radio signals received by the antenna.
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Abstract
A wireless control device is described that single chip passive wireless control integrated circuit device. The device is coupled to an antenna configured to receive a radio signal and comprises a radio frequency transceiver circuit fabricated on a semiconductor substrate of an integrated circuit device and configured to extract information from the radio signal and a processor fabricated on the semiconductor substrate and configured to receive the information extracted from the radio signal and to respond to a command encoded in the information. A FET fabricated on the substrate operates as a switch and has a gate controlled by the processor. The FET can be configured to transmit an activation current provided to the integrated circuit device to an output of the integrated circuit device. The output may drive an actuator.
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Citations
27 Claims
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1. A passive wireless control integrated circuit device, comprising:
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a radio frequency transceiver circuit fabricated on a semiconductor substrate of an integrated circuit device and configured to extract information from a radio signal received by an antenna; a processor fabricated on the semiconductor substrate and configured to receive the information extracted from the radio signal and to respond to a command encoded in the information; and a field effect transistor (FET) fabricated on the substrate and operable as a switch, the FET having a gate controlled by the processor, wherein responsive to an activation signal from the processor, the FET is configured to transmit an activation current to an output of the integrated circuit device, wherein the activation current is generated by a power source that is external to the integrated circuit device and the transceiver and processor are powered using energy extracted from radio signals received by the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for wirelessly controlling an item, comprising:
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a passive wireless control integrated circuit device that includes an antenna, a radio frequency transceiver circuit fabricated on a semiconductor substrate of the integrated circuit device and configured to extract information from a radio signal received by the antenna, a processor fabricated on the semiconductor substrate and configured to receive the information extracted from the radio signal and configured to respond to an activation command encoded in the information, and a metal oxide semiconductor field effect transistor (FET) fabricated on the substrate, wherein responsive to the activation command, the processor provides an activation signal to a gate of the FET, thereby causing the FET to enable flow of an activation current through the integrated circuit device; a power source that provides the activation current; and an actuator configured to change state in response to the activation current, wherein the transceiver and processor are powered using energy extracted from radio signals received by the antenna. - View Dependent Claims (24, 25, 26, 27)
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Specification