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1. 发明授权

US08035711B2 Sub-pixel array optical sensor 有权
标题翻译：子像素阵列光学传感器
公开(公告)号：US08035711B2
公开(公告)日：2011-10-11
申请号：US12125466
申请日：2008-05-22
申请人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N9/083
CPC分类号： H04N9/07 , H04N9/045
摘要： Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.
摘要翻译：通过使用子像素阵列来捕获不同曝光的光并且在单个帧中为图像生成彩色像素输出来公开改善拍摄图像的动态范围。每个子像素阵列可以包括多个子像素。构成子像素阵列的子像素可以包括红色（R）子像素，绿色（G）子像素，蓝色（B）子像素，并且在一些实施例中可以包括清晰的子像素。具有清晰子像素的子像素阵列有效地具有更高的曝光水平，并且能够比没有清晰子像素的子像素阵列更好地捕获低光场景（对于暗区域）。每个子像素阵列可以产生作为子像素阵列中的子像素的输出的组合的彩色像素输出。子像素阵列中的每个子像素可以具有相同的曝光时间，或者在一些实施例中，子像素阵列内的各个子像素可以具有不同的曝光时间，以提高整个动态范围。

2. 发明申请

US20090290052A1 Color Pixel Pattern Scheme for High Dynamic Range Optical Sensor 审中-公开
标题翻译：高动态范围光学传感器的彩色像素图案方案
公开(公告)号：US20090290052A1
公开(公告)日：2009-11-26
申请号：US12126347
申请日：2008-05-23
申请人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
发明人： Li Liu , Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner
IPC分类号： H04N9/04
CPC分类号： H04N9/045 , H04N5/35554 , H04N2209/045
摘要： The use of a Bayer pattern array in digital image sensors to enhance the dynamic range of the sensors is disclosed. Each Bayer pattern in the array can include three different pixels having a first exposure, and a fourth pixel (which is the same color as one of the other pixels in the array) having a second exposure. The dynamic range of the Bayer pattern array can be enhanced by using different exposure times for the pixels. Each pixel can capture only one channel (i.e. either red (R), green (G) or blue (B) light). Interpolation of neighboring pixels, including those having different exposure times, can enable the pixels in the Bayer pattern array to generate missing color information and effectively become a color pixel, and can allow the Bayer pattern array to have a higher dynamic range.
摘要翻译：公开了在数字图像传感器中使用拜耳图案阵列来增强传感器的动态范围。阵列中的每个拜耳图案可以包括具有第一曝光的三个不同像素和具有第二曝光的第四像素（其与阵列中的其他像素之一相同的颜色）。可以通过对像素使用不同的曝光时间来增强拜耳图案阵列的动态范围。每个像素只能捕获一个通道（即红色（R），绿色（G））或蓝色（B）光）。相邻像素（包括具有不同曝光时间的像素）的插值可以使得拜耳图案阵列中的像素能够产生丢失的颜色信息并有效地成为彩色像素，并且可以允许拜耳图案阵列具有更高的动态范围。

3. 发明申请

US20100149393A1 INCREASING THE RESOLUTION OF COLOR SUB-PIXEL ARRAYS 审中-公开
标题翻译：增加颜色子像素阵列的分辨率
公开(公告)号：US20100149393A1
公开(公告)日：2010-06-17
申请号：US12712146
申请日：2010-02-24
申请人： Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner , Li Liu
发明人： Jeffrey Jon Zarnowski , Ketan Vrajlal Karia , Thomas Poonnen , Michael Eugene Joyner , Li Liu
IPC分类号： H04N5/335
CPC分类号： H04N9/045 , H04N5/3537 , H04N5/35554 , H04N9/07
摘要： Increasing the resolution of digital imagers is disclosed by sampling an image using diagonally oriented color sub-pixel arrays, and creating missing pixels from the sampled image data. A first method maps the diagonal color imager pixels to every other orthogonal display pixel. The missing display pixels can be computed by interpolating data from adjacent color imager pixels, and averaging color information from neighboring display pixels. This averaging can be done either by weighting the surrounding pixels equally, or by applying weights to the surrounding pixels based on intensity information. A second method utilizes the captured color imager sub-pixel data instead of interpolation. Missing color pixels for orthogonal displays can be obtained directly from the sub-pixel arrays formed between the row color pixels in the imager.
摘要翻译：通过使用对角线取向的彩色子像素阵列对图像进行采样并从采样的图像数据创建缺失像素来公开增加数字成像器的分辨率。第一种方法将对角线彩色成像器像素映射到每个其他正交显示像素。可以通过内插来自相邻彩色成像器像素的数据并且从相邻显示像素平均颜色信息来计算缺失的显示像素。可以通过平均加权周围像素或通过基于强度信息对周围像素应用权重来完成该平均。第二种方法利用捕获的彩色成像器子像素数据代替内插。可以直接从成像器中的行彩色像素之间形成的子像素阵列获得用于正交显示的缺失颜色像素。

4. 发明授权

US07554067B2 Scanning imager employing multiple chips with staggered pixels 有权
标题翻译：扫描成像仪采用具有交错像素的多个芯片
公开(公告)号：US07554067B2
公开(公告)日：2009-06-30
申请号：US11589357
申请日：2006-10-30
申请人： Jeffrey J. Zarnowski , Ketan V. Karia , Michael Joyner , Thomas Poonnen , Li Liu
发明人： Jeffrey J. Zarnowski , Ketan V. Karia , Michael Joyner , Thomas Poonnen , Li Liu
IPC分类号： H01L27/00 , H04N3/14
CPC分类号： H04N5/2254 , H01L27/14603 , H01L27/14621 , H01L27/14627 , H04N1/1911 , H04N1/1917 , H04N5/3692 , H04N9/045 , H04N2201/0081
摘要： A solid state imaging system has at least one CMOS imager with first and second series of pixels in which the pixels of one series are offset, i.e., staggered, in respect to the pixels of the other series. Multiple imagers can be arrayed end to end, with jumper wires connecting the pixel output conductors or each so that the pixels feed into a common output amplifier for each series, to minimize chip to chip offset voltages. The pixels may be diagonally offset from one another, and a color imager can be constructed in which color ribbon filters are arranged diagonally across the imaging area. This arrangement minimizes color cross talk. An array of microlenses is situated with each microlens covering a plurality of the pixels. The different pixels under each microlens can be aligned along a diagonal. The different pixels under the same microlens can have different integration times, to increase the dynamic range of the imager(s).
摘要翻译：固态成像系统具有至少一个具有第一和第二系列像素的CMOS成像器，其中一系列的像素相对于另一系列的像素偏移，即交错。多个成像器可以端对端排列，跨接线连接像素输出导体或每个像素，以便像素馈送到每个系列的公共输出放大器，以最小化芯片到芯片的偏移电压。像素可以彼此对角地偏移，并且可以构造彩色成像器，其中色带滤光器对角地布置在成像区域上。这种布置使颜色串扰最小化。位于微透镜阵列中，每个微透镜覆盖多个像素。每个微透镜下的不同像素可以沿对角线对齐。相同微透镜下的不同像素可以具有不同的积分时间，以增加成像器的动态范围。

5. 发明授权

US08169517B2 Image sensor ADC and CDS per column with oversampling 有权
标题翻译：图像传感器ADC和CDS每列具有过采样
公开(公告)号：US08169517B2
公开(公告)日：2012-05-01
申请号：US11974813
申请日：2007-10-16
申请人： Thomas Poonnen , Jeffrey J. Zarnowski , Li Liu , Michael Joyner , Ketan V. Karia
发明人： Thomas Poonnen , Jeffrey J. Zarnowski , Li Liu , Michael Joyner , Ketan V. Karia
IPC分类号： H04N5/335 , H04N3/14
CPC分类号： H03M1/123 , H03M1/1019 , H03M1/1235 , H03M1/56 , H04N5/335 , H04N5/3575 , H04N5/3742 , H04N5/37455 , H04N5/3765 , H04N5/378
摘要： A solid state imager converts analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp output with a level that varies corresponding to the contents of the counter. A latch/counter or equivalent is associated with each respective column. A clock supplies clock signal(s) to the counter elements. When the analog ramp equals the pixel value for that column, the latch/counter latches the value. The black level can be pre-set in the latch/counter or can be subtracted separately to reduce fixed pattern noise. The pixels can be oversampled for some number of times, e.g., n=16, to reduce the thermal noise of the sensors. Also, two or more pixels sharing a common sense node may be binned together, and two (or more) pixels having different integration times may be combined to obtain an output signal with enhanced dynamic range.
摘要翻译：固态成像器将阵列每列的模拟像素值转换为数字形式。 N位计数器提供N位DAC以产生具有与计数器内容相对应的电平的模拟斜坡输出。锁存/计数器或等效物与每个相应的列相关联。时钟向计数器元件提供时钟信号。当模拟斜坡等于该列的像素值时，锁存器/计数器锁存该值。黑色电平可以在锁存/计数器中预先设置，也可以单独减去，以减少固定模式噪声。像素可以被过采样若干次，例如n = 16，以减少传感器的热噪声。此外，共享共同感测节点的两个或更多个像素可以被合并在一起，并且可以组合具有不同积分时间的两个（或更多个）像素以获得具有增强的动态范围的输出信号。

6. 发明申请

US20080043128A1 Image sensor ADC and CDS per Column with Oversampling 有权
标题翻译：图像传感器ADC和CDS每列过采样
公开(公告)号：US20080043128A1
公开(公告)日：2008-02-21
申请号：US11974813
申请日：2007-10-16
申请人： Thomas Poonnen , Jeffrey Zarnowski , Li Liu , Michael Joyner , Ketan Karia
发明人： Thomas Poonnen , Jeffrey Zarnowski , Li Liu , Michael Joyner , Ketan Karia
IPC分类号： H04N5/335
CPC分类号： H03M1/123 , H03M1/1019 , H03M1/1235 , H03M1/56 , H04N5/335 , H04N5/3575 , H04N5/3742 , H04N5/37455 , H04N5/3765 , H04N5/378
摘要： A solid state imager converts analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp output with a level that varies corresponding to the contents of the counter. A latch/counter or equivalent is associated with each respective column. A clock supplies clock signal(s) to the counter elements. When the analog ramp equals the pixel value for that column, the latch/counter latches the value. The black level can be pre-set in the latch/counter or can be subtracted separately to reduce fixed pattern noise. The pixels can be oversampled for some number of times, e.g., n=16, to reduce the thermal noise of the sensors. Also, two or more pixels sharing a common sense node may be binned together, and two (or more) pixels having different integration times may be combined to obtain an output signal with enhanced dynamic range.
摘要翻译：固态成像器将阵列每列的模拟像素值转换为数字形式。 N位计数器提供N位DAC以产生具有与计数器内容相对应的电平的模拟斜坡输出。锁存/计数器或等效物与每个相应的列相关联。时钟向计数器元件提供时钟信号。当模拟斜坡等于该列的像素值时，锁存器/计数器锁存该值。黑色电平可以在锁存/计数器中预先设置，也可以单独减去，以减少固定模式噪声。像素可以被过采样若干次，例如n = 16，以减少传感器的热噪声。此外，共享共同感测节点的两个或更多个像素可以被合并在一起，并且可以组合具有不同积分时间的两个（或更多个）像素以获得具有增强的动态范围的输出信号。

7. 发明申请

US20070040100A1 Scanning imager employing multiple chips with staggered pixels 有权
标题翻译：扫描成像仪采用具有交错像素的多个芯片
公开(公告)号：US20070040100A1
公开(公告)日：2007-02-22
申请号：US11589357
申请日：2006-10-30
申请人： Jeffrey Zarnowski , Ketan Karia , Michael Joyner , Thomas Poonnen , Li Liu
发明人： Jeffrey Zarnowski , Ketan Karia , Michael Joyner , Thomas Poonnen , Li Liu
IPC分类号： H01L27/00
CPC分类号： H04N5/2254 , H01L27/14603 , H01L27/14621 , H01L27/14627 , H04N1/1911 , H04N1/1917 , H04N5/3692 , H04N9/045 , H04N2201/0081
摘要： A solid state imaging system has at least one CMOS imager with first and second series of pixels in which the pixels of one series are offset, i.e., staggered, in respect to the pixels of the other series. Multiple imagers can be arrayed end to end, with jumper wires connecting the pixel output conductors or each so that the pixels feed into a common output amplifier for each series, to minimize chip to chip offset voltages. The pixels may be diagonally offset from one another, and a color imager can be constructed in which color ribbon filters are arranged diagonally across the imaging area. This arrangement minimizes color cross talk. An array of microlenses is situated with each microlens covering a plurality of the pixels. The different pixels under each microlens can be aligned along a diagonal. The different pixels under the same microlens can have different integration times, to increase the dynamic range of the imager(s).
摘要翻译：固态成像系统具有至少一个具有第一和第二系列像素的CMOS成像器，其中一系列的像素相对于另一系列的像素偏移，即交错。多个成像器可以端对端排列，跨接线连接像素输出导体或每个像素，以便像素馈送到每个系列的公共输出放大器，以最小化芯片到芯片的偏移电压。像素可以彼此对角地偏移，并且可以构造彩色成像器，其中色带滤光器对角地布置在成像区域上。这种布置使颜色串扰最小化。位于微透镜阵列中，每个微透镜覆盖多个像素。每个微透镜下的不同像素可以沿对角线对齐。相同微透镜下的不同像素可以具有不同的积分时间，以增加成像器的动态范围。

8. 发明授权

US11738788B2 Luggage cart 有权
公开(公告)号：US11738788B2
公开(公告)日：2023-08-29
申请号：US16936675
申请日：2020-07-23
申请人： Li Liu
发明人： Li Liu
IPC分类号： B62B1/14 , B62B1/12 , B62B1/26
CPC分类号： B62B1/14 , B62B1/12 , B62B1/26 , B62B2202/24 , B62B2203/00
摘要： A luggage cart includes a supporting tray and a latching mechanism. The latching mechanism includes a top seat, a fastening member, an actuating member, a bottom seat fixed to the supporting tray, and a latch bolt. The fastening member has a flange cap portion adapted for securing to a luggage container, and a shaft portion formed with a first locking part. The latch bolt is mounted to the bottom seat and is slidingly engaged with the actuating member. The actuating member is movable to move the latch bolt from a locking position, where the latch bolt engages the first locking part of the fastening member, to an unlocked position, where the latch bolt is disengaged from the first locking part to permit removal of the fastening member.

9. 外观设计

USD911214S1 Hanging decoration 有权
公开(公告)号：USD911214S1
公开(公告)日：2021-02-23
申请号：US29737213
申请日：2020-06-07
申请人： Li Liu
设计人： Li Liu

10. 发明授权

US09988668B2 Apparatus for amplification of nucleic acids 有权
公开(公告)号：US09988668B2
公开(公告)日：2018-06-05
申请号：US14128486
申请日：2012-06-25
申请人： Zhimin Ding , Fang Wu , Li Liu
发明人： Zhimin Ding , Fang Wu , Li Liu
IPC分类号： C12M1/34 , C12Q1/68 , B01L7/00
CPC分类号： C12Q1/6806 , B01L7/52 , B01L2200/028 , B01L2200/147 , B01L2200/148 , B01L2200/16 , B01L2300/043 , B01L2300/0654 , B01L2300/1822 , B01L2300/1827
摘要： Described herein is a chip-based apparatus for amplifying nucleic acids, a cartridge housing the apparatus, and methods of using the apparatus for amplification of nucleic acids. More specifically, this invention provides integrated semiconductor chip, manufactured with standard semiconductor manufacturing process, with on-chip circuitry to perform thermal management and optical sensing necessary for amplification of nucleic acids. The apparatus and methods embodied in this invention makes it possible to build a disease diagnosis and prognosis tool that is easy to use, portable and disposable.

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