公开(公告)号：US20140070078A1

公开(公告)日：2014-03-13

申请号：US13608973

申请日：2012-09-10

Applicant: Brian R. Land ,  Dong Zheng

Inventor： Brian R. Land ,  Dong Zheng

IPC: G01J1/44

CPC classification number: G01S7/493 ,  G01S7/497 ,  G01S17/026 ,  G01S17/88 ,  H04M1/72522 ,  H04M2250/12 ,  H04M2250/22 ,  H04W52/0254 ,  Y02D70/00 ,  Y02D70/26

Abstract: An electronic device may be provided with a proximity sensor. The proximity sensor may include a light source such as a light-emitting diode and a light detector such as a photodiode. The light-emitting diode may be driven with an alternating current drive signal so that alternating current light is produced. The alternating current light may reflect off of an external object and may be received by the photodiode. The photodiode may receive a direct current light signal associated with the presence of ambient light. The efficiency of the photodiode may be affected by the level of ambient light and the efficiency of the light-emitting diode may be affected by the temperature of the light-emitting diode. Ambient light correction circuitry and temperature correction circuitry may be used to ensure that proximity sensor readings are not adversely affected by changes in operating temperature and ambient lighting conditions.

Abstract translation: 电子设备可以设置有接近传感器。 接近传感器可以包括诸如发光二极管的光源和诸如光电二极管的光检测器。 可以用交流驱动信号驱动发光二极管，从而产生交流光。 交流电可以从外部物体反射并且可以被光电二极管接收。 光电二极管可以接收与环境光的存在相关联的直流光信号。 光电二极管的效率可能受到环境光的影响，并且发光二极管的效率可能受到发光二极管的温度的影响。 可以使用环境光校正电路和温度校正电路来确保接近传感器读数不受操作温度和环境照明条件的变化的不利影响。

公开(公告)号：US08603750B2

公开(公告)日：2013-12-10

申请号：US10535905

申请日：2003-05-06

Applicant: Lianghong Guo ,  Dong Dong ,  Dong Zheng ,  Fuquan Wang ,  Xiqiang Yang ,  Jing Cheng

Inventor： Lianghong Guo ,  Dong Dong ,  Dong Zheng ,  Fuquan Wang ,  Xiqiang Yang ,  Jing Cheng

IPC: G01N33/53 ,  G01N21/76

CPC classification number: G01N33/582 ,  C12Q1/6816 ,  G01N2458/30 ,  C12Q2563/113 ,  C12Q2523/313

Abstract: The present invention provides apparatus, kits and methods for assaying analytes using photoelectrochemical molecules as labels. Specifically, the present invention provides a method for assaying an analyte, comprising: a) contacting a sample suspected of containing an analyte with a reactant capable of binding and/or reacting with the analyte under suitable conditions to allow binding of analyte, if present in the sample, to the reactant; and b) assessing binding and/or reacting between the analyte and the reactant to determine presence and/or amount of analyte in the sample, wherein the reactant, analyte, or additional reactant or additional analyte or analyte analog is labeled with a photoelectrochemically active molecule. The assessing step also comprises converting the photoelectrochemically active molecule with light to an excited state in the presence of an electrode, and assessing an electric current generated by an electron transfer between the excited photoelectrochemically active molecule and the electrode.

Abstract translation: 本发明提供了使用光电化学分子作为标记来测定分析物的装置，试剂盒和方法。 具体地，本发明提供了一种用于分析分析物的方法，其包括：a）在合适的条件下将疑似含有分析物的样品与能够与分析物结合和/或反应的反应物接触，以使分析物（如果存在于 样品，反应物; 和b）评估分析物和反应物之间的结合和/或反应以确定样品中分析物的存在和/或量，其中反应物，分析物或附加反应物或其他分析物或分析物类似物用光电化学活性分子标记 。 评估步骤还包括在电极存在下将光电化学活性分子与光转化为激发态，并评估由激发的光电化学活性分子和电极之间的电子转移产生的电流。

公开(公告)号：US08415606B2

公开(公告)日：2013-04-09

申请号：US13328401

申请日：2011-12-16

Applicant: Dong Zheng ,  Daryl Chamberlain

Inventor： Dong Zheng ,  Daryl Chamberlain

IPC: G01J1/44 ,  G02B5/32

CPC classification number: G01J1/44 ,  G01J1/4228 ,  G11B7/131 ,  G11B7/22

Abstract: A configurable photo detector circuit comprises a photo detector array including a plurality of photo detectors coupled to a plurality of amplifiers. A method for programming a detection pattern of the configurable photo detector circuit comprises selecting a first detection pattern for the photo detector array, generating first signals to create the first selected detection pattern, and applying the first generated signals to the photo detector circuit to implement the first selected detection pattern.

Abstract translation: 可配置的光电检测器电路包括光电检测器阵列，其包括耦合到多个放大器的多个光电检测器。 一种用于对可配置光电检测器电路的检测图案进行编程的方法包括选择用于光电检测器阵列的第一检测图案，产生第一信号以产生第一选择的检测图案，以及将第一生成信号施加到光电检测器电路，以实现 第一选择的检测模式。

公开(公告)号：US20120294365A1

公开(公告)日：2012-11-22

申请号：US13435148

申请日：2012-03-30

Applicant: Dong ZHENG ,  Demin Wang ,  Liang Zhang

Inventor： Dong ZHENG ,  Demin Wang ,  Liang Zhang

IPC: H04N7/34 ,  G06K9/36 ,  H04N7/26

CPC classification number: H04N19/182 ,  H04N19/11 ,  H04N19/176

Abstract: A method and system for image and video encoding and decoding is disclosed. A plurality of macro-blocks of pixels are defined in the image to be encoded, for subsequent block-by-block encoding and decoding. A node-cell structure of pixels is individually defined for each macro-block. The node pixels are encoded first. Then, the cell pixels are encoded using the decoded node pixels as a reference. This allows increasing macro-block size without a significant degradation of pixel encoding quality.

Abstract translation: 公开了一种用于图像和视频编码和解码的方法和系统。 在要编码的图像中定义多个像素的宏块，用于随后的逐块编码和解码。 每个宏块分别定义像素的节点单元结构。 首先对节点像素进行编码。 然后，使用解码的节点像素作为参考来对单元像素进行编码。 这允许增加宏块大小而不会显着降低像素编码质量。

公开(公告)号：US08134113B2

公开(公告)日：2012-03-13

申请号：US13092058

申请日：2011-04-21

Applicant: Dong Zheng ,  Daryl Chamberlin ,  Hung Chou

Inventor： Dong Zheng ,  Daryl Chamberlin ,  Hung Chou

IPC: G11B7/00 ,  G01J1/44

CPC classification number: G11B7/1275 ,  G11B7/131 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: In accordance with an embodiment, a circuit includes a photodetector (PD) array including a plurality of electrically isolated PD sections. Additionally, the circuit includes a switching matrix that includes a plurality of inputs and a plurality of outputs, and that can be selectively configured in a plurality of different switch configurations. Each of the electrically isolated PD sections is adapted to detect light (if any) and provide an electrical output signal, indicative of the light detected by the PD section (if any), to a different one of the inputs of the switching matrix. The switching matrix is adapted to combine the electrical output signals provided by the electrically isolated PD sections in a plurality of different manners, in dependence on which of the plurality of different switch configurations is selected.

Abstract translation: 根据实施例，电路包括包括多个电隔离的PD部分的光电检测器（PD）阵列。 此外，电路包括包括多个输入和多个输出的开关矩阵，并且可以选择性地配置为多个不同的开关配置。 电隔离的PD部分中的每一个适于检测光（如果有的话），并提供指示由PD部分（如果有的话）检测到的光的电输出信号到开关矩阵的不同输入端。 开关矩阵适于根据多个不同的开关配置选择多个不同的方式组合由电隔离的PD部分提供的电输出信号。

公开(公告)号：US20110176069A1

公开(公告)日：2011-07-21

申请号：US12868343

申请日：2010-08-25

Applicant: Daryl Chamberlin ,  Dong Zheng

Inventor： Daryl Chamberlin ,  Dong Zheng

IPC: H04N9/31 ,  G01J1/16 ,  H04N5/74

CPC classification number: H04N5/74 ,  G03B21/14 ,  G03B21/28 ,  H04N9/3129 ,  H04N9/3194

Abstract: Embodiments of the present invention generally relate to circuits, systems and methods that can be used to detect light beam misalignment, so that compensation for such misalignment can be performed. In accordance with an embodiment, a circuit includes a photo-detector (PD) having a plurality of electrically isolated PD segments. Additionally, the circuit has circuitry, including switches, configured to control how currents indicative of light detected by the plurality of electrically isolated PD segments are arithmetically combined. When the switches are in a first configuration, a signal produced by the circuitry is indicative of vertical light beam alignment. When the switches are in a second configuration, the signal produced by the circuitry is indicative of horizontal light beam alignment. The signals indicative of vertical light beam alignment and horizontal light beam alignment can be used detect light beam misalignment, so that compensation for such misalignment can be performed.

Abstract translation: 本发明的实施例通常涉及可用于检测光束未对准的电路，系统和方法，从而可以执行对这种不对准的补偿。 根据实施例，电路包括具有多个电隔离PD段的光检测器（PD）。 另外，该电路具有包括开关的电路，其被配置为控制指示由多个电隔离的PD段检测到的光的电流如何被算术组合。 当开关处于第一配置时，由电路产生的信号指示垂直光束对准。 当开关处于第二配置时，由电路产生的信号指示水平光束对准。 可以使用指示垂直光束对准和水平光束对准的信号来检测光束未对准，从而可以执行对这种未对准的补偿。

公开(公告)号：US20080197270A1

公开(公告)日：2008-08-21

申请号：US11863858

申请日：2007-09-28

Applicant: DONG ZHENG ,  Daryl Chamberlin

Inventor： DONG ZHENG ,  Daryl Chamberlin

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J1/4228 ,  G11B7/131 ,  G11B7/22

Abstract: A configurable photo detector circuit includes a photo detector array having a plurality of photo detectors. A switching matrix includes a first plurality of inputs coupled to outputs of the plurality of photo detector, a second plurality of inputs, and a plurality of matrix outputs. A controller is coupled to the second plurality of inputs of the switching matrix for configuring the switching matrix. The controller is operable to receive programmed commands for configuring the switching matrix. An output block having a plurality of inputs is coupled to receive the plurality of matrix outputs and a plurality of outputs, wherein electrical signals from the plurality of photo detectors are directed to respective ones of the plurality of outputs based on the switching matrix.

Abstract translation: 可配置的光电检测器电路包括具有多个光电检测器的光电检测器阵列。 开关矩阵包括耦合到多个光电检测器的输出的第一多个输入，第二多个输入和多个矩阵输出。 控制器耦合到开关矩阵的第二多个输入端，用于配置开关矩阵。 控制器可操作以接收用于配置开关矩阵的编程命令。 具有多个输入的输出块被耦合以接收多个矩阵输出和多个输出，其中来自多个光电检测器的电信号基于开关矩阵被引导到多个输出中的相应的输出。

公开(公告)号：US20080135968A1

公开(公告)日：2008-06-12

申请号：US11621443

申请日：2007-01-09

Applicant: Alexander Kalnitsky ,  Dong Zheng ,  Joy Jones ,  Xijian Lin ,  Gregory Cestra

Inventor： Alexander Kalnitsky ,  Dong Zheng ,  Joy Jones ,  Xijian Lin ,  Gregory Cestra

IPC: H01L31/02

CPC classification number: H01L31/103 ,  H01L27/1443 ,  H01L31/02162

Abstract: Embodiments of the present invention are directed to light sensors, that primarily respond to visible light while suppressing infrared light. Such sensors are especially useful as ambient light sensors because such sensors can be used to provide a spectral response similar to that of a human eye. Embodiments of the present invention are also directed to methods of providing such light sensors, and methods for using such light sensors.

Abstract translation: 本发明的实施例涉及在抑制红外光的同时主要响应于可见光的光传感器。 这种传感器作为环境光传感器是特别有用的，因为这样的传感器可用于提供类似于人眼的光谱响应。 本发明的实施例还涉及提供这种光传感器的方法，以及使用这种光传感器的方法。

公开(公告)号：US20060214251A1

公开(公告)日：2006-09-28

申请号：US11378843

申请日：2006-03-17

Applicant: Perumal Ratnam ,  Dong Zheng

Inventor： Perumal Ratnam ,  Dong Zheng

IPC: H01L31/0232 ,  H01L21/4763

CPC classification number: H01L31/02165

Abstract: A method of forming efficient photodiodes includes the steps of providing a substrate having a p-surface region on at least a portion thereof, implanting a shallow n-type surface layer into the surface region, and forming a multilayer first anti-reflective (AR) coating on the n-type surface layer. The surface layer is preferably an As or Sb surface layer. The forming the AR step include the steps of depositing or forming a thin oxide layer having a thickness of between 1.5 nm and 8 nm on the shallow surface layer, and depositing a second dielectric different from the thin oxide layer on the thin oxide layer, such as a silicon nitride layer.

Abstract translation: 一种形成有效的光电二极管的方法包括以下步骤：在其至少一部分上提供具有p表面区域的衬底，将浅n型表面层注入表面区域，以及形成多层第一抗反射（AR） 涂覆在n型表面层上。 表面层优选为As或Sb表面层。 形成AR步骤包括以下步骤：在浅表面层上沉积或形成厚度为1.5nm至8nm的薄氧化物层，并且在薄氧化物层上沉积不同于薄氧化物层的第二电介质， 为氮化硅层。

公开(公告)号：US20060062340A1

公开(公告)日：2006-03-23

申请号：US10992537

申请日：2004-11-17

Applicant: Dong Zheng

Inventor： Dong Zheng

IPC: H03D3/24 ,  H03L7/00

CPC classification number: H03L7/0812 ,  G06F1/04

Abstract: A phase adjuster (10) includes a delay-locked loop (14) and an interpolator (34). The delay-locked loop (14) includes a sufficient number of delay stages (24) to maintain a Π/2 radians phase shift across the one delay stage (24′) of a voltage-controlled delay line (20). The output signals (28 and 30) to this one stage (24′) are filtered, output from the delay-locked loop (14), and input to the interpolator (34). Within the interpolator (34), these output signals (28 and 30) are weighted and combined. The ratio of the weighting applied to the output signals determines the resulting adjusted phase of an output clock signal (36). The weighting can be a time-varying signal or otherwise programmed as needed to achieve a desired phase shift that is independent of clock speed and process variation.

Abstract translation: 相位调节器（10）包括延迟锁定环（14）和内插器（34）。 延迟锁定环路（14）包括足够数量的延迟级（24），以在电压控制延迟线（20）的一个延迟级（24'）上保持Pi / 2弧度相移。 对该一级（24'）的输出信号（28和30）进行滤波，从延迟锁定环路（14）输出，并输入到内插器（34）。 在内插器（34）内，对这些输出信号（28和30）进行加权和组合。 施加到输出信号的加权比决定了输出时钟信号（36）的结果调整相位。 加权可以是时变信号，或者根据需要进行编程，以实现独立于时钟速度和过程变化的期望相移。