Current assisted photonic demodulator (capd) image capture
AssigneeQUALCOMM Incorporated
InventorsMicha Galor Gluskin, Hung Pin Chou
Life of this patent
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Abstract
An image sensor system for high dynamic range (HDR) imaging utilizes a current assisted photonic demodulator (CAPD) to address luminance capture challenges in varied lighting conditions. The system includes processing circuitry that modulates voltage at a CAPD sensor's modulation electrode with an adjustable duty cycle, allowing a first photodiode to have a longer integration time than a second photodiode. This configuration enables simultaneous capture of longer and shorter exposures.
Claims20
An apparatus configured to capture an image, the apparatus comprising:
- a memory;
- and
- processing circuitry coupled to the memory, the processing circuitry configured to:
- modulate a voltage at a modulation electrode of a current assisted photonic demodulator (CAPD) sensor with an adjustable duty cycle, wherein the adjustable duty cycle causes a first photodiode of a pixel of the CAPD sensor to have a longer integration time relative to a second photodiode of the pixel of the CAPD sensor;
- and
- receive image data for the image captured with the CAPD sensor.
A method for capturing an image, the method comprising:
- modulating a voltage at a modulation electrode of a current assisted photonic demodulator (CAPD) sensor with an adjustable duty cycle, wherein the adjustable duty cycle causes a first photodiode of a pixel of the CAPD sensor to have a longer integration time relative to a second photodiode of the pixel of the CAPD sensor;
- and
- receiving image data for the image captured with the CAPD sensor.
A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors of a device configured to capture an image to:
- modulate a voltage at a modulation electrode of a current assisted photonic demodulator (CAPD) sensor with an adjustable duty cycle, wherein the adjustable duty cycle causes a first photodiode of a pixel of the CAPD sensor to have a longer integration time relative to a second photodiode of the pixel of the CAPD sensor;
- and
- receive image data for the image captured with the CAPD sensor.
Dependencies are inferred from the claim text.