Thermal-mechanical signal processing
First Claim
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1. A method of signal processing for extracting base-band information from a broadcast signal, the method comprising:
- converting a radio frequency signal into heat; and
measuring temperature changes representative of the radio frequency signal including converting the temperature changes into mechanical motion.
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Abstract
A source signal is converted into a time-variant temperature field with transduction into mechanical motion. In one embodiment, the conversion of a source signal into the time-variant temperature field is provided by utilizing a micro-fabricated fast response, bolometer-type radio frequency power meter. A resonant-type micromechanical thermal actuator may be utilized for temperature read-out and demodulation.
16 Citations
19 Claims
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1. A method of signal processing for extracting base-band information from a broadcast signal, the method comprising:
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converting a radio frequency signal into heat; and measuring temperature changes representative of the radio frequency signal including converting the temperature changes into mechanical motion. - View Dependent Claims (2, 3, 4)
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5. A method of signal processing for extracting base-band information from an amplitude modulated broadcast signal, the method comprising:
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converting the amplitude modulated broadcast signal into heat using a micro-fabricated resistive heater having a thermal inertia small enough to follow the modulation; and measuring temperature changes in the micro-fabricated resistive heater. - View Dependent Claims (6, 7, 8, 9)
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10. A method comprising:
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converting a broadcast signal into temperature oscillations; and converting the temperature oscillations into mechanical motion representative of the broadcast signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification