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US 6,151,071 AGranted
Circuit for generating control signals
AssigneeEastman Kodak Company
InventorEugene M. Petilli
Life of this patent
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Abstract
A method and apparatus of correlated double sampling is disclosed by creating sampled and clamped signals from CCD imager outputs that are in phase with the CCD imager outputs comprising: providing an image sensor having an analog output; sensing the output of the image sensor via system electronics; identifying and extracting portions of a reset signal within the analog output signal; and modifying existing clocks in response to extracted portions of the reset signal.
Claims15
A circuit for generating control signals comprising:
- an image sensing device capable of converting light into an image-bearing signal representative of light incident upon the image sensing device, the image sensing device including means for transferring the image-bearing signal representative of light incident upon the image sensing device upon application of a clock stimulus;
- a clock generator for applying the clock stimulus to the image sensing device;
- a reset signal for resetting the image sensing device to a predetermined potential;
- synthesis means for generating a plurality of synthesized clocks to be employed for a sampling circuit, at least one of the synthesized clocks being responsive to the reset signal being applied of the image device resulting in an output from the image sensing device, the synthesis means further comprising a phase delay within the at least one synthesized clock that is applied to the sampling circuit that synchronizes a predetermined threshold in the output from the image sensing device with a corresponding portion of the reset signal;
- and
- means for sampling the image-bearing electronic signal in response to the sample pulse applied to the sampling circuit.
3 more elements
Dependencies are inferred from the claim text.