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US 2006/0232774 A1Published application
Method for Generation of a Digital Output Signal of a Photosensor and Its Design
OwnerJoerg Kunzeinventor
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OwnerJoerg Kunzeinventor
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A method for generating a digital output signal of a photosensor with at least one light-sensitive pixel is provided. An electrical intensity signal is generated by incident light, this being evaluated after or during an adjustable exposure time to generate a digital output signal. The exposure time is divided into time intervals. A time signal dependent on the number of time intervals that have passed during the exposure time is generated, and the intensity signal is compared with at least one adjustable reference value. The time signal is acquired as soon as the intensity signal reaches or exceeds or falls short of the reference value. The acquired time signal is evaluated as a digital output signal of the pixel. A structure of a photosensor for execution of the above method is also provided.
A method for generation of a digital output signal of a photosensor having at least one light-sensitive pixel, comprising the steps of generating an electrical intensity signal by exposing the pixel to incident light and evaluating the intensity signal after or during an adjustable exposure time (T) to generate the digital output signal, said steps including:
A photosensor having at least one light-sensitive pixel (21) in which an electrical intensity signal is generated by incident light and evaluated after or during an adjustable exposure time (T) to generate a digital output signal, said pixel comprising:
Dependencies are inferred from the claim text.