专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5962844A Active pixel image cell with embedded memory and pixel level signal processing capability 失效
标题翻译：有源像素图像单元具有嵌入式存储器和像素级信号处理能力
公开(公告)号：US5962844A
公开(公告)日：1999-10-05
申请号：US923370
申请日：1997-09-03
申请人： Richard Billings Merrill , Albert Bergemont , Min-hwa Chi
发明人： Richard Billings Merrill , Albert Bergemont , Min-hwa Chi
IPC分类号： H01L27/146 , H04N5/3745 , H04N5/378 , H01L27/148 , H04N5/335
CPC分类号： H04N3/155 , H01L27/14609
摘要： An active pixel image cell which includes a photosensor and an embedded memory element and may be used to produce signals corresponding to the photosensor outputs for successive frames. The structure of the active pixel cell includes an analog, non-volatile, or dynamic memory element and the control elements needed to store the output of the photosensor generated during a previous frame. The pixel elements then generate a signal representing the current frame output of the photosensor. The current frame output and previous frame output are then provided as output signals for the pixel and may be subjected to off-pixel processing as desired. For example, the two values may be subtracted from one another by an off-pixel difference amplifier to form a signal representing the difference between the image on the photodiode sensor of the pixel between successive frames. The difference signal may then be used for purposes of video compression, motion detection, or image stabilization.
摘要翻译：一种有源像素图像单元，其包括光电传感器和嵌入式存储元件，并且可用于产生对应于用于连续帧的光电传感器输出的信号。有源像素单元的结构包括模拟，非易失性或动态存储器元件以及存储在先前帧期间产生的光电传感器的输出所需的控制元件。然后，像素元件产生表示光电传感器的当前帧输出的信号。然后将当前帧输出和先前帧输出提供为像素的输出信号，并且可以根据需要进行离像像素处理。例如，两个值可以由离像素差分放大器彼此减去以形成表示连续帧之间的像素的光电二极管传感器上的图像之间的差的信号。然后差分信号可以用于视频压缩，运动检测或图像稳定的目的。

2. 发明授权

US5710446A Active pixel sensor cell that utilizes a parasitic transistor to reset the photodiode of the cell 失效
标题翻译：有源像素传感器单元利用寄生晶体管复位电池的光电二极管
公开(公告)号：US5710446A
公开(公告)日：1998-01-20
申请号：US647687
申请日：1996-05-13
申请人： Min-hwa Chi , Richard Billings Merrill , Albert Bergemont
发明人： Min-hwa Chi , Richard Billings Merrill , Albert Bergemont
IPC分类号： G11C13/00 , H01L27/148 , H01L29/768 , H04N3/14
CPC分类号： H01L27/14612 , H01L27/14643
摘要： The amount of silicon real estate consumed by a photodiode-based active pixel sensor cell is reduced by utilizing a parasitic transistor to reset the voltage on the photodiode in lieu of the conventional use of a reset transistor. The parasitic transistor is formed by forming a doped region a distance apart from the well region of the photodiode, which defines a parasitic channel region therebetween, and a reset gate over the parasitic channel region.
摘要翻译：通过利用寄生晶体管来代替常规使用复位晶体管来减少光电二极管上的电压来减少由基于光电二极管的有源像素传感器单元消耗的硅空间的量。寄生晶体管通过形成与光电二极管的阱区隔一定距离的掺杂区域形成，其间限定了寄生沟道区域，以及在寄生沟道区域上的复位栅极。

3. 发明授权

US6011295A Neural network active pixel cell 失效
标题翻译：神经网络有源像素单元
公开(公告)号：US6011295A
公开(公告)日：2000-01-04
申请号：US898062
申请日：1997-07-22
申请人： Richard Billings Merrill , Albert Bergemont , Min-hwa Chi
发明人： Richard Billings Merrill , Albert Bergemont , Min-hwa Chi
IPC分类号： G06N3/063 , G06G7/16
CPC分类号： G06N3/0635
摘要： An active pixel image cell which includes a photosensor, active devices for control of the sensor and readout of a signal representing the intensity of light to which the sensor is exposed, and a neuron MOSFET transistor which "both amplifies the signal from the photosensor and" simulates the behavior of a human neuron. An integrated neural network and imaging array may be formed by interconnecting a group of such pixels. Digital signal processing algorithms used for image processing may be implemented at the pixel level by appropriate interconnections between the output signals from the photosensor of surrounding pixels and the neuron MOSFET.
摘要翻译：包括光传感器的有源像素图像单元，用于控制传感器的有源器件和表示传感器所暴露的光的强度的信号的读出，以及“两者都放大来自光电传感器的信号”的神经元晶体管，模拟人类神经元的行为。可以通过将一组这样的像素互连来形成集成神经网络和成像阵列。用于图像处理的数字信号处理算法可以通过来自周围像素的光电传感器的输出信号和神经元MOSFET之间的适当互连在像素级上实现。

4. 发明授权

US6130713A CMOS active pixel cell with self reset for improved dynamic range 失效
标题翻译： CMOS有源像素单元具有自复位功能，可提高动态范围
公开(公告)号：US6130713A
公开(公告)日：2000-10-10
申请号：US884204
申请日：1997-06-27
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H04N5/235 , H04N5/355 , H04N5/374 , H04N5/3745 , H04N5/335
CPC分类号： G01S7/487 , G01S17/08 , G01S7/4863 , H04N5/35572 , H04N5/3745
摘要： An image cell having self-reset which provides improved dynamic range is achieved by having a reset circuit, a comparator circuit and a memory circuit. The image cell operates such that the comparator circuit compares the voltage potential of the image cell with a reference voltage potential. Once the comparator circuit senses that the voltage potential of the image cell transcends the reference voltage potential, the comparator circuit sends a reset signal to the reset circuit. The reset circuit then resets the image cell. Each time the image cell is reset, a reset value is stored in the memory circuit, and the sum of the reset values stored in the memory circuit corresponds to the number of times the image cell has been reset. By resetting the image cell a plurality of times, the dynamic range of a conventional image cell can be increased.
摘要翻译：具有提供改善的动态范围的具有自复位的图像单元通过具有复位电路，比较器电路和存储电路来实现。图像单元操作使得比较器电路将图像单元的电压电位与参考电压电位进行比较。一旦比较器电路感测到图像单元的电压电位超过参考电压电位，比较器电路就向复位电路发送复位信号。复位电路然后复位图像单元。每次图像单元被复位时，复位值被存储在存储器电路中，并且存储在存储器电路中的复位值之和对应于图像单元复位的次数。通过重复图像单元多次，可以增加常规图像单元的动态范围。

5. 发明授权

US5892541A Imaging system and method for increasing the dynamic range of an array of active pixel sensor cells 失效
公开(公告)号：US5892541A
公开(公告)日：1999-04-06
申请号：US711983
申请日：1996-09-10
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H01L27/146 , H04N3/14
CPC分类号： H04N3/155 , H01L27/14609
摘要： The dynamic range of an imaging system that utilizes an array of active pixel sensor cells is substantially increased by reading each cell in the array multiple times during each integration period. Each time a cell is read, the number of photons collected by the cell is saved and the cell is reset if the cell would normally saturate by the end of the integration period. At the end of the integration period, the number of photons collected by each cell is defined by the sum of the values collected during the integration period.

6. 发明授权

US6066510A Method for forming a photodiode with improved photoresponse behavior 失效
标题翻译：用于形成具有改进的光响应行为的光电二极管的方法
公开(公告)号：US6066510A
公开(公告)日：2000-05-23
申请号：US73100
申请日：1998-05-05
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H01L31/0352 , H01L31/103 , H01L21/00 , H01L31/00
CPC分类号： H01L31/0352 , H01L31/103
摘要： The quantum efficiency of a photodiode is substantially increased by forming the photodiode on a heavily-doped layer of semiconductor material which, in turn, is formed on a semiconductor substrate. The heavily-doped layer of semiconductor material tends to repel information carriers in the photodiode from being lost to the substrate, and prevents noise carriers from the substrate from diffusing up into the photodiode. In addition, the red and blue photoresponses are balanced by adjusting the depth of the photodiode.
摘要翻译：通过在半导体材料的重掺杂层上形成光电二极管，进而在半导体衬底上形成光电二极管的量子效率。半导体材料的重掺杂倾向于排斥光电二极管中的信息载体丢失到衬底，并且防止来自衬底的噪声载流子向上扩散到光电二极管中。此外，通过调整光电二极管的深度来平衡红色和蓝色光响应。

7. 发明授权

US5965875A Color separation in an active pixel cell imaging array using a triple-well structure 失效
标题翻译：使用三重阱结构的有源像素单元成像阵列中的色彩分离
公开(公告)号：US5965875A
公开(公告)日：1999-10-12
申请号：US65939
申请日：1998-04-24
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： G01J3/50 , H01L27/146 , H04N3/15
CPC分类号： H01L27/14647 , H01L27/14623 , H04N9/045 , H04N2209/047
摘要： A digital imager apparatus uses the differences in absorption length in silicon of light of different wavelengths for color separation. A preferred imaging array is based upon a three-color pixel sensor using a triple-well structure. The array results in elimination of color aliasing by measuring each of the three primary colors (RGB) in each pixel in the same location.
摘要翻译：数字成像仪使用不同波长的光的硅吸收长度的差异进行分色。优选的成像阵列基于使用三阱结构的三色像素传感器。该阵列通过测量同一位置的每个像素中的三原色（RGB）中的每一个，导致消除颜色混叠。

8. 发明授权

US5747840A Photodiode with improved photoresponse behavior 失效
标题翻译：具有改善光响应行为的光电二极管
公开(公告)号：US5747840A
公开(公告)日：1998-05-05
申请号：US734114
申请日：1996-10-21
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H01L31/0352 , H01L31/103 , H01L31/06
CPC分类号： H01L31/0352 , H01L31/103
摘要： The quantum efficiency of a photodiode is substantially increased by forming the photodiode on a heavily-doped layer of semiconductor material which, in turn, is formed on a semiconductor substrate. The heavily-doped layer of semiconductor material tends to repel information carriers in the photodiode from being lost to the substrate, and prevents noise carriers from the substrate from diffusing up into the photodiode. In addition, the red and blue photoresponses are balanced by adjusting the depth of the photodiode.
摘要翻译：通过在半导体材料的重掺杂层上形成光电二极管，进而在半导体衬底上形成光电二极管的量子效率。半导体材料的重掺杂倾向于排斥光电二极管中的信息载体丢失到衬底，并且防止来自衬底的噪声载流子向上扩散到光电二极管中。此外，通过调整光电二极管的深度来平衡红色和蓝色光响应。

9. 发明授权

US5705846A CMOS-compatible active pixel image array using vertical pnp cell 失效
标题翻译： CMOS兼容有源像素图像阵列使用垂直pnp单元格
公开(公告)号：US5705846A
公开(公告)日：1998-01-06
申请号：US509421
申请日：1995-07-31
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H01L27/146 , H01L31/06 , H01L27/082 , H01L31/062 , H01L31/113
CPC分类号： H01L27/14679 , H01L27/14681
摘要： A preferred pnp bipolar phototransistor pixel element in accordance with the present invention has a p-type collector region formed in p-type semiconductor material. An n-type base region is formed in the collector region. A p-type emitter region is formed in the base region. An annular n-type capacitor region is formed in the base region surrounding and spaced-apart from the emitter region. Conductive material is disposed over the capacitor region and separated therefrom by underlying dielectric material to define the pixel element's coupling capacitor.
摘要翻译：根据本发明的优选pnp双极光电晶体管像素元件具有形成在p型半导体材料中的p型集电极区域。在集电区域形成有n型基极区域。在基极区域形成p型发射极区域。环形n型电容器区域形成在与发射极区域围绕并间隔开的基极区域中。导电材料设置在电容器区域之上，并通过下面的介电材料与其分离，以限定像素元件的耦合电容器。

10. 发明授权

US6018365A Imaging system and method for increasing the dynamic range of an array of active pixel sensor cells 有权
标题翻译：用于增加有源像素传感器单元阵列的动态范围的成像系统和方法
公开(公告)号：US6018365A
公开(公告)日：2000-01-25
申请号：US263405
申请日：1999-03-05
申请人： Richard Billings Merrill
发明人： Richard Billings Merrill
IPC分类号： H01L27/146 , H04N3/14
CPC分类号： H04N3/155 , H01L27/14609
摘要： The dynamic range of an imaging system that utilizes an array of active pixel sensor cells is substantially increased by reading each cell in the array multiple times during each integration period. Each time a cell is read, the number of photons collected by the cell is saved and the cell is reset if the cell would normally saturate by the end of the integration period. At the end of the integration period, the number of photons collected by each cell is defined by the sum of the values collected during the integration period.
摘要翻译：利用有源像素传感器单元阵列的成像系统的动态范围通过在每个积分周期期间多次读取阵列中的每个单元而大大增加。每次读取单元时，单元格收集的光子数量将被保存，并且如果单元格在积分周期结束时正常饱和，单元格将被复位。在积分期结束时，每个细胞收集的光子数由积分期间收集的值之和定义。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式