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1. 发明授权

US06900834B2 Method of detecting flicker, and video camera using the method 有权
标题翻译：使用该方法检测闪烁的方法和摄像机
公开(公告)号：US06900834B2
公开(公告)日：2005-05-31
申请号：US09939517
申请日：2001-08-24
申请人： Robert Henderson , Stewart Gresty Smith , Jonathan Ephriam David Hurwitz , Andrew Murray
发明人： Robert Henderson , Stewart Gresty Smith , Jonathan Ephriam David Hurwitz , Andrew Murray
IPC分类号： H04N5/235 , H04N9/73
CPC分类号： H04N5/2357 , H04N5/235 , Y10S348/91
摘要： Lighting flicker in the output of a video imaging device is detected. The video imaging device has a main picture area divided into pixels for producing successive images at a frame rate. A series of signals are produced from at least one additional picture area adjacent the main picture area, with the additional picture area having a size substantially larger than a pixel. Each of the signals is a function of light incident on the additional picture area in a time period substantially shorter than that of the frame rate. A predetermined number of the signals are accumulated to form a series of compound samples, and the compound samples are filtered to detect components indicating the lighting flicker. The filtering is performed using a bandpass filter tuned to the nominal flicker frequency. The compound samples are formed at a sample rate which is a multiple of the nominal flicker frequency, and the filtering is performed by taking the fundamental output component of a radix-N butterfly.
摘要翻译：检测出影像成像装置的输出中的照明闪烁。视频成像装置具有划分为像素的主图像区域，用于以帧速率产生连续的图像。从与主图像区域相邻的至少一个附加图像区域产生一系列信号，其中附加图像区域的尺寸基本上大于像素。每个信号是在比帧速率短的时间周期内入射到附加图像区域上的光的函数。累积预定数量的信号以形成一系列化合物样品，并且过滤化合物样品以检测指示照明闪烁的组分。使用调谐到标称闪烁频率的带通滤波器来执行滤波。复合样本以标称闪烁频率的倍数的采样率形成，并且通过获取基数N蝶形的基本输出分量来执行滤波。

2. 发明授权

US06844896B2 Modification of column fixed pattern column noise in solid state image sensors 有权
标题翻译：固态图像传感器中列固定模式列噪声的修改
公开(公告)号：US06844896B2
公开(公告)日：2005-01-18
申请号：US09932822
申请日：2001-08-17
申请人： Robert Henderson , Stewart Gresty Smith , Jonathan Ephriam David Hurwitz
发明人： Robert Henderson , Stewart Gresty Smith , Jonathan Ephriam David Hurwitz
IPC分类号： H04N5/217 , H04N5/357 , H04N5/365 , H04N5/378
CPC分类号： H04N5/3658 , H04N5/3575 , H04N5/378
摘要： Solid state image sensors, and methods of operation thereof, includes an array of photosensitive pixels arranged in rows and columns and in which pixel data signals are read out from the pixels via column circuits, which introduces column fixed pattern noise to the signals. The signals are selectively inverted at the inputs to the column circuits and the inversion is reversed following output from the column circuits. Each column circuit may include an analog-to-digital converter and a digital inverter for inverting digital output therefrom. The selective inversion may be applied to alternate rows or groups of rows of the pixel data, and may be applied differently to different frames of the pixel data. These techniques result in column fixed pattern noise being modulated in a manner which makes the noise less apparent to the eye, and which facilitates subsequent cancellation of the noise.
摘要翻译：固态图像传感器及其操作方法包括以列和列排列的光敏像素的阵列，其中通过列电路从像素读出像素数据信号，该列电路将列固定图案噪声引入信号。这些信号在列电路的输入端被选择性地反相，并且在从列电路输出之后反转反转。每列电路可以包括模数转换器和用于反转数字输出的数字反相器。选择性反转可以应用于像素数据的行的交替行或组，并且可以不同地应用于像素数据的不同帧。这些技术导致列固定模式噪声以使噪声对眼睛不太明显的方式进行调制，并且有助于随后的噪声消除。

3. 发明授权

US06486911B1 Optoelectronic sensor with shuffled readout 失效
标题翻译：具有洗牌读数的光电传感器
公开(公告)号：US06486911B1
公开(公告)日：2002-11-26
申请号：US09029916
申请日：1998-03-10
申请人： Peter Brian Denyer , Jonathan Ephriam David Hurwitz , Stewart Gresty Smith
发明人： Peter Brian Denyer , Jonathan Ephriam David Hurwitz , Stewart Gresty Smith
IPC分类号： H04N5335
CPC分类号： H04N9/045 , H04N2209/046
摘要： An integrated circuit suitable for use as a multi-spectral image array sensor (1) comprises an array of pixels (2) for sensing radiation of different wavelengths e.g. different colours. The array has at least one row of cells containing a plurality of series (R,G) of pixels which series are interspersed with each other. Each series consists essentially of pixels (2) for sensing radiation of substantially the same wavelength e.g. the same colour. At least two horizontal shift registers (16,18) are provided, each register being coupled to pixels (2) of a respective one of the plurality of series (R,G) of pixels so as to enable the outputs from the pixels of each series to be read out consecutively at an array output (11). In a preferred embodiment the pixels (2) are preferably arranged in a Bayer matrix of Red, Green and Blue pixels and two interleaved shift registers (16,18) are provided for reading out the pixel outputs for each colour consecutively, in each row. In an alternative embodiment, an address decode system (40, 41, 42) is used to read out the pixel outputs instead of horizontal shift registers. The integrated circuit may be provided in a camera head (22) and/or in a solid state camera system (20) incorporating a signal processor (28) for demultiplexing the pixel outputs into a plurality of channels e.g. different colour channels (R, G, B).
摘要翻译：适合用作多光谱图像阵列传感器（1）的集成电路包括用于感测不同波长的辐射的像素阵列（2），例如，不同的颜色。该阵列具有至少一行包含多个串联（R，G）的像素的单元，该系列彼此分散。每个系列基本上由用于感测基本上相同波长的辐射的像素（2）组成。相同的颜色。提供至少两个水平移位寄存器（16,18），每个寄存器耦合到多个像素序列（R，G）中的相应一个像素的像素（2），以便能够从每个像素的像素输出系列在阵列输出（11）上连续读出。在优选实施例中，像素（2）优选地布置在红色，绿色和蓝色像素的拜耳矩阵中，并且提供两个交错移位寄存器（16,18），用于在每行中连续地读出每种颜色的像素输出。在替代实施例中，地址解码系统（40,41,42）用于读出像素输出而不是水平移位寄存器。集成电路可以设置在相机头（22）和/或固体照相机系统（20）中，该系统包括用于将像素输出解复用为多个通道的信号处理器（28）。不同的颜色通道（R，G，B）。

4. 发明授权

US07253837B2 Active-pixel image sensors 有权
标题翻译：有源像素图像传感器
公开(公告)号：US07253837B2
公开(公告)日：2007-08-07
申请号：US10407871
申请日：2003-04-04
申请人： Robert Henderson , Jonathan Ephriam David Hurwitz
发明人： Robert Henderson , Jonathan Ephriam David Hurwitz
IPC分类号： H04N5/217 , H04N5/21 , H04N3/14 , H01L27/00
CPC分类号： H04N5/3653 , H04N5/3575
摘要： An image sensor has an array of pixels read by column circuits to provide reset and read samples on a pair of sample capacitors. To alleviate the effects of parasitic capacitance in the region of the sample capacitors, a modified timing arrangement is used. Both sample switches are operated simultaneously to pre-charge both sample capacitors with a pixel signal value. One sample switch is operated after reset to apply a reset value to one of the pre-charged sample capacitors.
摘要翻译：图像传感器具有由列电路读取的像素阵列，以在一对采样电容器上提供复位和读取样本。为了减轻样品电容器区域中的寄生电容的影响，使用修正的定时装置。两个采样开关同时工作，以预先给像素信号值的两个采样电容器预充电。一个采样开关在复位后运行，将一个复位值应用于一个预充电采样电容。

5. 发明授权

US06818933B2 CMOS image sensors 有权
标题翻译： CMOS图像传感器
公开(公告)号：US06818933B2
公开(公告)日：2004-11-16
申请号：US10265289
申请日：2002-10-04
申请人： Robert Henderson , Purcel Matthew , Jonathan Ephriam David Hurwitz
发明人： Robert Henderson , Purcel Matthew , Jonathan Ephriam David Hurwitz
IPC分类号： H01L31062
CPC分类号： H04N5/3575 , H04N5/3653 , H04N5/378
摘要： An active pixel array has the signal output of each pixel connected to a first column conductor, and a reset switch connected to a second column conductor. The first and second column conductors are connected to a read-reset amplifier. The read-reset amplifier operates in a first mode in which a reset voltage is applied to the second column line, and in a second mode in which pixel output signals are buffered from the first column line. The read-reset amplifier can also operate as a comparator forming part of an ADC circuit.
摘要翻译：有源像素阵列具有连接到第一列导体的每个像素的信号输出，以及连接到第二列导体的复位开关。第一和第二列导体连接到读 - 复位放大器。读取复位放大器以第一模式工作，其中复位电压施加到第二列线，并且在第二模式中，其中像素输出信号从第一列线被缓冲。读取复位放大器也可以作为形成ADC电路的一部分的比较器来工作。

6. 发明授权

US06914629B1 Image capture control 有权
标题翻译：图像捕获控制
公开(公告)号：US06914629B1
公开(公告)日：2005-07-05
申请号：US09673598
申请日：1999-04-30
申请人： Jonathan Ephriam David Hurwitz , Peter Brian Denyer
发明人： Jonathan Ephriam David Hurwitz , Peter Brian Denyer
IPC分类号： H04N5/351 , H04N5/353 , H04N3/14
CPC分类号： H04N5/232 , H04N5/351 , H04N5/353
摘要： A method of operating a solid state image sensor (1) for the acquisition of an image generated by an asynchronous stimulus (S) is described in which the sensor is operated in conjunction with at least one detector (4) which detects the said asynchronous stimulus. The sensor is regularly reset so as to commence integration from a reset state of the sensor each time a period Tr has elapsed. The output of the detector(s) prior to each reset (R) is used to determine whether that reset is inhibited or not, whereby the likelihood of the stimulus being corrupted is prevented, or at least substantially reduced. A method is also proposed in which a portion of the sensor array is itself used as the detector (4) for detecting the asynchronous stimulus. A solid state image sensor incorporating a reset inhibition control function for carrying out the described method is also claimed.
摘要翻译：描述了操作用于获取由异步刺激（S）产生的图像的固态图像传感器（1）的方法，其中所述传感器与至少一个检测所述异步刺激（4）的检测器（4）一起操作，。定期复位传感器，以便在每次经过时间段Tr之后开始从传感器的复位状态进行积分。每个复位（R）之前的检测器的输出用于确定该复位是否被禁止，从而防止刺激被破坏的可能性，或至少大大减少。还提出了一种方法，其中传感器阵列的一部分本身被用作用于检测异步刺激的检测器（4）。还要求一种包含用于执行所述方法的复位禁止控制功能的固态图像传感器。

7. 发明授权

US08089315B2 Programmable gain amplifier 有权
标题翻译：可编程增益放大器
公开(公告)号：US08089315B2
公开(公告)日：2012-01-03
申请号：US12869595
申请日：2010-08-26
申请人： Jonathan Ephriam David Hurwitz , Adrià Bofill-Petit , Robert K. Henderson
发明人： Jonathan Ephriam David Hurwitz , Adrià Bofill-Petit , Robert K. Henderson
IPC分类号： H03F3/45
CPC分类号： H03G1/0088 , H03G3/001
摘要： A programmable gain amplifier comprising alternatively selectable parallel circuits in a front end and independently selectable serial amplification circuits in a back end. The front end may include, for example, a plurality of transconductors in parallel and each configured to generate a current proportional to a received voltage. A ratio of the generated current to the received voltage being different for each of the transconductors. The back end is configured to receive an output of a selected member of the parallel circuits and may include a plurality of current or voltage mode amplifiers in series. For example, the back end may include a plurality of current-mode gain stages and switches configured to control which of the current-mode gain stages are used to amplify the output of the front end. The programmable gain amplifier may be used between a signal receiver and an analog to digital converter.
摘要翻译：可编程增益放大器包括前端的可选择的并联电路和后端中的独立可选择的串行放大电路。前端可以包括例如并联的多个跨导体，并且每个被配置成产生与接收电压成比例的电流。所产生的电流与接收电压的比率对于每个跨导体是不同的。后端被配置为接收并联电路的所选成员的输出，并且可以包括串联的多个电流或电压模式放大器。例如，后端可以包括多个电流模式增益级和被配置为控制哪个电流模式增益级用于放大前端的输出的开关。可编程增益放大器可以在信号接收器和模数转换器之间使用。

8. 发明授权

US6067113A Offset noise cancellation in array image sensors 失效
标题翻译：阵列图像传感器中的偏移噪声消除
公开(公告)号：US6067113A
公开(公告)日：2000-05-23
申请号：US749056
申请日：1996-11-14
申请人： Jonathan Ephriam David Hurwitz , Peter Brian Denyer
发明人： Jonathan Ephriam David Hurwitz , Peter Brian Denyer
IPC分类号： H04N5/365 , H04N5/374 , H04N5/378 , H04N5/217 , H04N3/14 , H04N9/64
CPC分类号： H04N5/374 , H04N5/3658 , H04N5/378
摘要： An integrated circuit active pixel image sensor comprises an array of active pixels having associated therewith one capacitor in each pixel column for storing a combined pixel output signal comprising an image signal and a fixed offset signal and another capacitor in each column for capturing another signal produced when the pixel is reset. The array may be read row-by-row. Each column includes a comparator and a data latch via which a digitized fixed offset corrected pixel output signal is obtained using a ramp voltage source and a digital count broadcaster provided in the sensor.
摘要翻译：集成电路有源像素图像传感器包括有源像素的阵列，其具有与每个像素列中的一个电容器相关联的有源像素阵列，用于存储包括图像信号和固定偏移信号的组合像素输出信号，以及每列中的另一个电容器，像素被复位。数组可以逐行读取。每列包括比较器和数据锁存器，通过该比较器和数据锁存器，通过传感器中提供的斜坡电压源和数字计数广播器获得数字化的固定偏移校正像素输出信号。

9. 发明授权

US08031407B2 Imaging assembly 有权
标题翻译：成像组件
公开(公告)号：US08031407B2
公开(公告)日：2011-10-04
申请号：US11201555
申请日：2005-08-11
申请人： Jonathan Ephriam David Hurwitz , Ewan Findlay
发明人： Jonathan Ephriam David Hurwitz , Ewan Findlay
IPC分类号： G02B1/00 , G02B27/42 , G02B27/00 , G02B13/18
CPC分类号： G02B1/11 , G02B1/10 , G02B13/0025 , G02B13/006 , G02B13/18 , H01L31/0203 , H01L31/02162 , H01L31/0232 , H04N5/2254
摘要： An imaging assembly for an image sensor may include a lens, a transparent substrate and two aspherical optical coatings on each side of the substrate. The imaging assembly can also incorporate an opaque coating with an opening in-line with the lens to form an aperture, an anti-reflection coating, and an infrared filter coating.
摘要翻译：用于图像传感器的成像组件可以包括透镜，透明基板和在基板的每一侧上的两个非球面光学涂层。成像组件还可以包括具有与透镜成直角的开口的不透明涂层以形成孔，防反射涂层和红外滤光器涂层。

10. 发明授权

US07804537B2 Combined linear-logarithmic image sensor 有权
标题翻译：组合线性对数图像传感器
公开(公告)号：US07804537B2
公开(公告)日：2010-09-28
申请号：US10820464
申请日：2004-04-08
申请人： Graeme Storm , Jonathan Ephriam David Hurwitz
发明人： Graeme Storm , Jonathan Ephriam David Hurwitz
IPC分类号： H04N5/20
CPC分类号： H04N5/335 , H04N5/361
摘要： An image sensor includes an array of pixels, with each pixel including a photodiode, and a first output circuit for deriving a linear output signal by applying a reset signal to the photodiode and reading a voltage on the photodiode after an integration time. A second output circuit derives a logarithmic output signal by reading a near instantaneous illumination-dependent voltage on the photodiode that is a logarithmic function of the illumination. In the logarithmic mode, the pixels are calibrated to remove fixed pattern noise. The pixels may be operated in linear and log modes sequentially, with the linear output being selected for low light signals and the log output being selected for high light signals.
摘要翻译：图像传感器包括像素阵列，每个像素包括光电二极管，以及第一输出电路，用于通过将复位信号施加到光电二极管并在积分时间之后读取光电二极管上的电压来导出线性输出信号。第二输出电路通过读取作为照明的对数函数的光电二极管上的近瞬时照明相关电压来导出对数输出信号。在对数模式下，校准像素以去除固定模式噪声。像素可以顺序地以线性和对数模式操作，对于低光信号选择线性输出，并且对于高光信号选择对数输出。

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