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US 8,026,968 B2Granted
Method and apparatus providing dynamic boosted control signal for a pixel
AssigneeAptina Imaging Corporation
InventorPer O. Pahr
Life of this patent
Estimating the term…
Abstract
A method and apparatus that generates boosted control signals for a transistor in a target pixel circuit. At least one modified pixel circuit is provided with a transistor layout that approximates a layout of the target pixel circuit. In the modified pixel circuit, one transistor that corresponds to a transistor in the target pixel that is to be controlled provides a voltage used to generate a control signal for the corresponding transistor in the target pixel.
Claims14
An apparatus for generating a control signal for operating a controllable transistor in a first circuit, the apparatus comprising:
- a circuit which has a transistor layout that replicates the transistor layout of the first circuit, the circuit including a first transistor which corresponds to the controllable transistor in the first circuit, the first transistor being operable to cause generation of an output voltage representing an operational characteristic of the controllable transistor;
- and
- a circuit for generating a boosted gate voltage for the controllable transistor in response to the output voltage.
Dependencies are inferred from the claim text.