Array of Electromagnetic Radiation Sensors with On-Chip Processing Circuitry
First Claim
1. A system comprising:
- a sensor device providing an array of electromagnetic radiation sensors;
processing circuitry integrated in the sensor device and operable to process the output of the sensors to provide the output of the sensor device;
and illumination system operable to illuminate the sensors with a reference beam of electromagnetic radiation and with electromagnetic radiation reflected from a subject;
the processing circuitry being operable to provide, for each operative sensor, a value calculated from the Doppler shift of the reflected radiation at the corresponding position at the subject, and to provide the calculated values as the processed output.
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Accused Products
Abstract
A system comprises an illumination system to illuminate a sensor device with a reference beam of electromagnetic radiation and with electromagnetic radiation from a subject. A Doppler shift of the radiation from the subject occurs, if the subject is moving, vibrating, or is a flowing fluid. The sensor device provides an array of electromagnetic radiation sensors and has processing circuitry integrated into the sensor device to process the output of the sensors to provide the output of the sensor device. The processing circuitry is operable to provide, for each operative sensor, a value calculated from the Doppler shift of the radiation from the subject at the corresponding position at the subject, and to provide the calculated values as the processed output. This reduces the data rate required at the output of the sensor device, and allows the output to be used to form an image on a display representing the movement, vibration or flow of the subject.
3 Citations
37 Claims
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1. A system comprising:
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a sensor device providing an array of electromagnetic radiation sensors; processing circuitry integrated in the sensor device and operable to process the output of the sensors to provide the output of the sensor device; and illumination system operable to illuminate the sensors with a reference beam of electromagnetic radiation and with electromagnetic radiation reflected from a subject; the processing circuitry being operable to provide, for each operative sensor, a value calculated from the Doppler shift of the reflected radiation at the corresponding position at the subject, and to provide the calculated values as the processed output. - View Dependent Claims (2, 5, 6, 7, 11, 12, 13, 17, 18)
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3-4. -4. (canceled)
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8-10. -10. (canceled)
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14-16. -16. (canceled)
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19. A method comprising:
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providing a sensor device having an array of electromagnetic radiation sensors; illuminating the sensors with a reference beam of electromagnetic radiation and with electromagnetic radiation reflected from a subject; processing the output of the sensors to provide the processed output of the sensor device, by means of processing circuitry integrated in the sensor device and operable to provide, for each operative sensor, a value calculated from the Doppler shift of the reflected radiation at the corresponding position at the subject, and to provide the calculated values as the processed output. - View Dependent Claims (20, 23, 24, 25, 26, 29, 30, 31, 35, 36)
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21-22. -22. (canceled)
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27-28. -28. (canceled)
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32-34. -34. (canceled)
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37-39. -39. (canceled)
Specification
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- Resources
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Current AssigneeUniversity of Nottingham
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Original AssigneeUniversity of Nottingham
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InventorsMorgan, Stephen, Hayes-Gill, Barrie
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Application NumberUS12/669,848Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current702/49CPC Class CodesA61B 5/026 Measuring blood flow A61B3/...G01F 1/661 using lightG01F 1/663 by measuring Doppler freque...G01P 5/001 Full-field flow measurement...G01S 17/58 Velocity or trajectory dete...G01S 7/4811 common to transmitter and r...
