Use of a tag and reader antenna for a simulated Theremin effect
First Claim
1. A device comprising:
- an antenna configured to;
transmit electromagnetic radiation having a power level, andreceive backscatter electromagnetic radiation from a sensing device configured to take measurements; and
a control unit configured to interpret an indication of a supply voltage in the sensing device from the received backscatter electromagnetic radiation and generate a signal based on the indication of the supply voltage in the sensing device; and
a visual indicator configured to generate a visual output based on the generated signal.
3 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure provides methods and apparatuses for providing an audible feedback based on a proximity or a link quality between an external reader and a tag. The external reader transmits power to the tag with a radio frequency electromagnetic signal. The tag may rectify the radio frequency electromagnetic signal and create a rectified voltage. This rectified voltage may be used to power various components of the tag. Once it receives power from the reader, the tag may communicate information back to the external reader. The information communicated back to the reader is communicated by modulating an antenna impedance of the tag. By modulating the impedance, the tag will backscatter radiation transmitted by the reader. The reader is able to create an audio output based on determining the proximity or link quality from the reader to the tag based on the backscatter radiation it receives from the tag.
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Citations
24 Claims
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1. A device comprising:
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an antenna configured to; transmit electromagnetic radiation having a power level, and receive backscatter electromagnetic radiation from a sensing device configured to take measurements; and a control unit configured to interpret an indication of a supply voltage in the sensing device from the received backscatter electromagnetic radiation and generate a signal based on the indication of the supply voltage in the sensing device; and a visual indicator configured to generate a visual output based on the generated signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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transmitting electromagnetic radiation having a power level via an antenna; receiving backscatter electromagnetic radiation from a sensing device configured to take measurements via the antenna; interpreting an indication of a supply voltage in the sensing device from the received backscatter electromagnetic radiation; and generating a visual signal based on the indication of the supply voltage in the sensing device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An non-transitory computer-readable medium having stored thereon processor-executable instructions that, when executed by a processor in a radio-frequency system, cause the radio-frequency system to:
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transmit electromagnetic radiation having a power level via an antenna; receive backscatter electromagnetic radiation from a sensing device configured to take measurements via the antenna; interpret an indication of a supply voltage in the sensing device from the received backscatter electromagnetic radiation and generate a signal based on the indication of the supply voltage in the sensing device to cause a visual indicator to output a visual signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification