发明授权
- 专利标题: Active pixel sensor array with multiresolution readout
- 专利标题(中): 具有多分辨率读出功能的有源像素传感器阵列
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申请号: US785930申请日: 1997-01-22
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公开(公告)号: US5949483A公开(公告)日: 1999-09-07
- 发明人: Eric R. Fossum , Sabrina E. Kemeny , Bedabrata Pain
- 申请人: Eric R. Fossum , Sabrina E. Kemeny , Bedabrata Pain
- 申请人地址: CA Pasadena
- 专利权人: California Institute of Technology
- 当前专利权人: California Institute of Technology
- 当前专利权人地址: CA Pasadena
- 主分类号: G11C19/28
- IPC分类号: G11C19/28 ; H01L27/146 ; H01L27/148 ; H01L31/0216 ; H01L31/0232 ; H04N5/347 ; H04N5/374 ; H04N9/04 ; H04N5/335
摘要:
An imaging device formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary metal oxide semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the substrate for accumulating photo-generated charge in an underlying portion of the substrate and a charge coupled device section formed on the substrate adjacent the photogate having a sensing node and at least one charge coupled device stage for transferring charge from the underlying portion of the substrate to the sensing node. There is also a readout circuit, part of which can be disposed at the bottom of each column of cells and be common to all the cells in the column. The imaging device can also include an electronic shutter formed on the substrate adjacent the photogate, and/or a storage section to allow for simultaneous integration. In addition, the imaging device can include a multiresolution imaging circuit to provide images of varying resolution. The multiresolution circuit could also be employed in an array where the photosensitive portion of each pixel cell is a photodiode. This latter embodiment could further be modified to facilitate low light imaging.
公开/授权文献
- US5271293A Control unit for a medical apparatus 公开/授权日:1993-12-21
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