Image sensor with processor controlled integration time
First Claim
1. An image sensor that is connected to a processor which generates a plurality of control signals, the control signals including a first edge separated from a second edge by a control interval, comprising:
- a pixel array that contains a plurality of rows of pixels; and
, a selection circuit that selects a row of said pixel array to generate and retrieve pixel data from said pixel array by resetting and reading said selected row of said pixel array, a time interval between the resetting and reading of said selected row being proportional to the control interval between the first and second edges.
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Abstract
An image sensor that has one or more pixels within a pixel array. The pixels are arranged within a plurality of rows within the array. Each row of the pixel array can be selected by a row decoder in response to an edge of a control signal. The control signal may be one of a plurality of signals generated by a processor coupled to the image sensor. The processor can control the exposure time of the pixels by varying the control signals. The control signals may also have an embedded narrow pulse that is used to determine the location of a “window” in the pixel array.
82 Citations
20 Claims
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1. An image sensor that is connected to a processor which generates a plurality of control signals, the control signals including a first edge separated from a second edge by a control interval, comprising:
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a pixel array that contains a plurality of rows of pixels; and
,a selection circuit that selects a row of said pixel array to generate and retrieve pixel data from said pixel array by resetting and reading said selected row of said pixel array, a time interval between the resetting and reading of said selected row being proportional to the control interval between the first and second edges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image sensor that is connected to a processor which generates a plurality of control signals including a first pulse that has a first width and a second pulse that has a different second width, comprising:
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a pixel array that contains a plurality of rows of pixels; and
,a selection circuit that selects a group of rows of said pixel array, the group being a function of a location of the second pulse relative to the first pulse. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An image sensor, comprising:
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a pixel array that contains a plurality of rows of pixels;
an address decoder coupled to a row of said pixel array;
a multiplexor coupled to said address decoder;
a first address generator coupled to said multiplexor; and
,a second address generator coupled to said multiplexor. - View Dependent Claims (20)
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Specification