Abstract: A charge-coupled device (CCD) image sensor is provided. The CCD image sensor may include an array of photosensors that transfer charge to multiple vertical CCD shift registers, which then in turn transfer the charge to a horizontal CCD shift register. The horizontal CCD shift register then feeds an output buffer circuit. The output buffer circuit can include multiple output stages, each of which can include a source-follower transistor coupled in series with a current sink transistor and at least one cascode transistor. The current sink transistor may have its gate terminal shorted to ground. In one arrangement, the cascode transistor has a gate terminal that receives a non-zero bias voltage. In another arrangement, the cascode transistor has a gate terminal that is also shorted to ground and operates in depletion mode.

Abstract: An image capture device includes an image sensor, a reading component, a timing generator, and a voltage regulator. The image sensor includes a temperature sensor configured to measure temperature measurements of the image sensor. The reading component is configured to read the temperature measurements from the temperature sensor. The timing generator is configured to apply an electronic shutter pulse to the image sensor. The voltage regulator is coupled between the temperature sensor and the reading component for regulating increased voltage at the reading component resulting from the electronic shutter pulse.

Abstract: A charge-coupled device (CCD) image sensor is provided. The CCD image sensor may include an array of photosensors that transfer charge to multiple vertical CCD shift registers, which then in turn transfer the charge to a horizontal CCD shift register. The horizontal CCD shift register then feeds an output buffer circuit. The output buffer circuit can include multiple output stages, each of which can include a source-follower transistor coupled in series with a current sink transistor and at least one cascode transistor. The current sink transistor may have its gate terminal shorted to ground. In one arrangement, the cascode transistor has a gate terminal that receives a non-zero bias voltage. In another arrangement, the cascode transistor has a gate terminal that is also shorted to ground and operates in depletion mode.

Abstract: An image capture device includes an image sensor, a reading component, a timing generator, and a voltage regulator. The image sensor includes a temperature sensor configured to measure temperature measurements of the image sensor. The reading component is configured to read the temperature measurements from the temperature sensor. The timing generator is configured to apply an electronic shutter pulse to the image sensor. The voltage regulator is coupled between the temperature sensor and the reading component for regulating increased voltage at the reading component resulting from the electronic shutter pulse.

Abstract: An image capture device includes an image sensor. The image sensor includes a temperature sensor for measuring temperature measurements of the image sensor. A timing generator is coupled to the image sensor for applying an electronic shutter pulse to the image sensor to drain away all charge in photodiodes of the image sensing region prior to image capture. A reading component is coupled to the temperature sensor for reading the temperature measurements from the temperature sensor. The image capture device is configured to prevent erroneous temperature readings by the reading component resulting from substrate punch-through from the application of the electronic shutter pulse.

Abstract: An image capture device includes an image sensor. The image sensor includes a temperature sensor for measuring temperature measurements of the image sensor. A timing generator is coupled to the image sensor for applying an electronic shutter pulse to the image sensor to drain away all charge in photodiodes of the image sensing region prior to image capture. A reading component is coupled to the temperature sensor for reading the temperature measurements from the temperature sensor. The image capture device is configured to prevent erroneous temperature readings by the reading component resulting from substrate punch-through from the application of the electronic shutter pulse.

Abstract: In a telecine film scanner having an aperture area setting servo loop to establish output light intensity in response to commanded light intensity settings followed by operation of a lamp current intensity servo loop during film scanning at the established aperture area position, the affect of the aperture area setting on the lamp current intensity servo loop gain is compensated for by means of a gain compensation circuit in the current intensity servo loop that operates to make the current intensity servo loop gain reciprocally proportional to the commanded light intensity settings, at least for settings above a minimum threshold setting. Any input gain adjustments, such as for different film types, in the commanded light intensity signal applied to the lamp current intensity servo loop are additionally compensated for by a reciprocal gain adjustment in the servo loop.

Abstract: Feedback control of a spatially distributed light source for a light integrating cavity in which the light acceptance angle of the light feedback device is expanded by means of a light diffuser at the feedback port so as to better average the localized light intensity variations on the internal surface area of the cavity caused by arc wander in the spatially distributed light source.