Voltage controller and voltage control method for charge-coupled device
First Claim
1. A voltage controller for a charge-coupled device having pixels provided with transfer electrodes, wherein the charge-coupled device generates and stores information charges in accordance with intensity of incident light on the pixels during image capture, transfers the information charges through application of a voltage to the transfer electrodes during transfer, and outputs an image signal in accordance with an amount of the information charges, wherein the voltage is controlled in accordance with the intensity of incident light on the pixels to change potential of a transfer channel area, along which the information charges are transferred, and a semiconductor interface below the transfer electrodes during image capture.
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Accused Products
Abstract
A voltage controller for a charge-coupled device is capable of controlling a voltage to be applied to transfer electrodes in accordance with intensity of light incident on pixels to change potential of a transfer channel area, along which information charges are transferred, and a semiconductor interface below the transfer electrodes during image capture. Using this voltage controller enables an improved quality image to be obtained from a charge-coupled device.
15 Citations
13 Claims
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1. A voltage controller for a charge-coupled device having pixels provided with transfer electrodes, wherein the charge-coupled device generates and stores information charges in accordance with intensity of incident light on the pixels during image capture, transfers the information charges through application of a voltage to the transfer electrodes during transfer, and outputs an image signal in accordance with an amount of the information charges, wherein
the voltage is controlled in accordance with the intensity of incident light on the pixels to change potential of a transfer channel area, along which the information charges are transferred, and a semiconductor interface below the transfer electrodes during image capture.
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8. A voltage control method for a charge-coupled device having pixels provided with transfer electrodes, wherein the charge-coupled device generates and stores information charges in accordance with intensity of incident light on the pixels during image capture, transfers the information charges through application of a voltage to the transfer electrodes during transfer, and outputs an image signal in accordance with an amount of the information charges, the voltage control method comprising steps of:
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obtaining information regarding the intensity of incident light on the pixels; and
controlling the voltage in accordance with the obtained information regarding the intensity of incident light to change potential of a transfer channel area, along which the information charges are transferred, and a semiconductor interface below the transfer electrodes during image capture. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification