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    • 4. 发明授权
    • Optical transmitter data compression system
    • 光发射机数据压缩系统
    • US6075251A
    • 2000-06-13
    • US312145
    • 1999-05-14
    • Alan Y. ChowVincent Y. Chow
    • Alan Y. ChowVincent Y. Chow
    • G01D21/00H01L25/16H01L27/14H01L27/146H01L31/08H01L31/10H03K17/00H03K17/78H04B10/00H04N7/24G02B27/00
    • H04B10/032H04N3/1506H04N3/1512H04N3/155
    • The present invention relates to a transmission method and device for efficient compression of digital data. The invention uses an optoelectronic coupler to receive light signals from a light transmitter at two bandwidths. A modulated signal generator is coupled to the transmitter which coverts voltage phase data signals to light signals. The data signals are modulated with a plurality of master profiles and subprofiles with different cycle time variations. The optoelectronic coupler has a pair of photodiodes. Light filters disposed on both diodes allow either the first or second bandwidth of light to pass. Conductors electrically couple the anode of the each photodiode to the cathode of the other photodiode which produce the voltage phase signal. A signal receiver is connected to the coupler and decodes the voltage-phase signal.
    • 本发明涉及数字数据有效压缩的传输方法和装置。 本发明使用光电耦合器以两个带宽从光发射器接收光信号。 调制信号发生器耦合到发射器,其将电压相位数据信号覆盖到光信号。 数据信号用具有不同周期时间变化的多个主配置文件和子配置进行调制。 光电耦合器具有一对光电二极管。 布置在两个二极管上的滤光片允许光的第一或第二带宽通过。 导体将每个光电二极管的阳极电耦合到产生电压相位信号的另一个光电二极管的阴极。 信号接收器连接到耦合器并解码电压相位信号。
    • 5. 发明授权
    • Opsistor image processor with a reference detector and a reference image
    • 具有参考检测器和参考图像的Opsistor图像处理器
    • US5949064A
    • 1999-09-07
    • US977853
    • 1997-11-25
    • Alan Y. ChowVincent Y. Chow
    • Alan Y. ChowVincent Y. Chow
    • G01D21/00H01L25/16H01L27/14H01L27/146H01L31/08H01L31/10H03K17/00H03K17/78H04B10/00H04N7/24H01J40/14
    • H04B10/032H04N3/1506H04N3/1512H04N3/155
    • An image processing system for capturing and compressing images into a digital format is disclosed. The system has an array of imaging pixel elements which consist of two photodiode detectors (Opsistor). One photodiode detector is a capture detector while the other detector is a reference detector. The capture detector has an anode electrically coupled to the cathode of the reference detector. The cathode of the capture detector is electrically coupled to the anode of the reference detector. An image may be compared to a reference image detected by the reference detector. Different levels of light between the captured image and the reference image change the electrical output of the opsistor. Image compression is facilitated since only pixel elements which change from frame to frame need be stored. Additionally, a processing and compression circuit may use column and row scans to eliminate unchanged pixels and store only pixels with different light levels between images.
    • 公开了一种用于将图像捕获和压缩成数字格式的图像处理系统。 该系统具有由两个光电二极管检测器(Opsistor)组成的成像像素元件阵列。 一个光电二极管检测器是捕获检测器,而另一个检测器是参考检测器。 捕获检测器具有电耦合到参考检测器的阴极的阳极。 捕获检测器的阴极电耦合到参考检测器的阳极。 可以将图像与由参考检测器检测到的参考图像进行比较。 拍摄图像和参考图像之间的不同级别的光线会改变opsistor的电气输出。 图像压缩是有利的,因为只需要存储从帧到帧改变的像素元素。 此外,处理和压缩电路可以使用列扫描和行扫描来消除不变像素,并且仅存储图像之间具有不同光级的像素。
    • 6. 发明授权
    • Optical operational amplifier
    • 光学运算放大器
    • US06201234B1
    • 2001-03-13
    • US09088579
    • 1998-06-02
    • Alan Y ChowVincent Y. Chow
    • Alan Y ChowVincent Y. Chow
    • H01J4014
    • H01L31/08H04B10/032H04N3/155H04N5/374
    • An optical operational amplifier is disclosed. The operational amplifier has a first photodiode with an anode and a cathode. A second photodiode with an anode coupled to the cathode of the first photodiode, and an anode coupled to the cathode of the first photodiode to form an output terminal. A resistor is coupled in parallel with the first and second photodiodes. The inputs to the operational amplifier are light sources which generate different currents in the first and second photodiodes. The output voltage from the output terminal is a function of the difference in currents across the first and second photodiode. The output voltage is amplified in proportion to the value of the resistor. The basic optical operational amplifier configuration may be used in a variety of useful circuits. One example is the use of the amplifier in a position sensing device which determines position of a light beam by the output of photodiode sensing elements. A second example is the use of the operational amplifier in a retinal stimulator device. The output waveform of the operational amplifier may be shaped by the resistor and added capacitative elements to be more compatible with retina cells.
    • 公开了一种光学运算放大器。 运算放大器具有带阳极和阴极的第一光电二极管。 具有耦合到第一光电二极管的阴极的阳极的第二光电二极管,以及耦合到第一光电二极管的阴极以形成输出端的阳极。 电阻器与第一和第二光电二极管并联耦合。 运算放大器的输入是在第一和第二光电二极管中产生不同电流的光源。 来自输出端子的输出电压是跨越第一和第二光电二极管的电流差的函数。 输出电压与电阻值成比例放大。 基本的光学运算放大器配置可以用在各种有用的电路中。 一个示例是在位置感测装置中使用放大器,其通过光电二极管感测元件的输出来确定光束的位置。 第二个例子是在视网膜刺激器装置中使用运算放大器。 运算放大器的输出波形可以由电阻器形成,并且增加的电容元件与视网膜细胞更相容。
    • 9. 发明授权
    • Wavelength-controllable voltage-phase photodiode optoelectronic switch
(
    • 波长可控电压相位光电二极管光电开关(“opsistor”)
    • US5837995A
    • 1998-11-17
    • US755729
    • 1996-11-25
    • Alan Y. ChowVincent Y. Chow
    • Alan Y. ChowVincent Y. Chow
    • G01D21/00H01L25/16H01L27/14H01L27/146H01L31/08H01L31/10H03K17/00H03K17/78H04B10/00H04N7/24H01J40/14
    • H04B10/032H04N3/1506H04N3/1512H04N3/155
    • A wavelength-portion controllable optoelectronic switch ("Opsistor") capable of rapid switch frequencies fabricated as a monolithic integrated circuit is disclosed. The Opsistor is comprised of two inverse parallel photodiodes in close proximity, preferably on a monolithic silicon substrate, such that the anode of one photodiode is electrically connected via a first conductor to the cathode of the second photodiode, and the cathode of the first photodiode is electrically connected via a second conductor to the anode of the second photodiode. The voltage-phase of the Opsistor is determined by the relative illumination to the Opsistor's two photodiodes and is rapidly switchable. As a receiving device for data signals, the Opsistor receives programming signals from a transmitter light source. By using different wavelength-portion bandwidth pass filters on each of the two Opsistor photodiodes, a OPS-F device is created, and by using a two-wavelength transmitter light source designated as TM2, a TM2/OPS-F system is created capable of high data transmission rates, and high resistance to signal noise. Applications suitable for the Opsistor and TM2/OPS-F system include high speed optocouplers, linear optical position sensors, edge and target detection sensors, image recognition sensors, the basic subunits of optically based state computers, and high resolution optical encoders.
    • 公开了一种能够制造为单片集成电路的快速开关频率的波长部分可控光电开关(“Opsistor”)。 Ops电阻由紧邻的两个反并联光电二极管组成,最好在单片硅衬底上,使得一个光电二极管的阳极经由第一导体与第二光电二极管的阴极电连接,第一光电二极管的阴极 经由第二导体电连接到第二光电二极管的阳极。 Opsistor的电压相位由Opsistor的两个光电二极管的相对照度决定,可快速切换。 作为数据信号的接收装置,Opsistor接收来自发射器光源的编程信号。 通过在两个Opsistor光电二极管中的每一个上使用不同的波长部分带通滤波器,创建了OPS-F器件,并且通过使用被称为TM2的双波长发射器光源,创建TM2 / OPS-F系统, 高数据传输速率,高抗信号噪声。 适用于Opsistor和TM2 / OPS-F系统的应用包括高速光耦合器,线性光学位置传感器,边缘和目标检测传感器,图像识别传感器,基于光学的状态计算机的基本子单元和高分辨率光学编码器。