发明名称 |
DEVICES AND METHODS FOR IMPROVING THE IMAGE QUALITY IN AN IMAGE SENSOR |
摘要 |
The present invention is related to an image sensor comprising an array of rows (i) and columns (j) of pixels (X<SUB>ij</SUB>), all the pixels of one column of the array being connected to at least one common pixel output line (I<SUB>j</SUB>) having at least one memory element (M<SUB>j</SUB>) and at least a first amplifying element (A<SUB>j</SUB>), all these amplifying elements (A<SUB>j</SUB>) being connected to a common output amplifier (D). According to one preferred embodiment, said image sensor comprises: a second amplifying element (B<SUB>j</SUB>) on the output of the memory element (M<SUB>j</SUB>); said common output amplifier (D) having at least two input terminals; means (S 1 ) for switching the pixel's signal on the common output line (I<SUB>j</SUB>) and the memory element's signal (M<SUB>j</SUB>) to respectively third and second amplifying element (A<SUB>j </SUB>and B<SUB>j</SUB>) of one column; and means (S 2 ) for switching the two output signals of the amplifying elements (A<SUB>j</SUB>, B<SUB>j</SUB>) of one column to respectively first and second input terminals of said common output amplifier (D). |
申请公布号 |
EP0940031(B1) |
申请公布日期 |
2010.04.07 |
申请号 |
EP19980944905 |
申请日期 |
1998.09.22 |
申请人 |
CYPRESS SEMICONDUCTOR CORPORATION (BELGIUM) BVBA |
发明人 |
DIERICKX, BART;KAVADIAS, SPYROS |
分类号 |
H04N5/365;H04N5/374 |
主分类号 |
H04N5/365 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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