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51. 发明授权

US5191549A Method and apparatus for performing a multiple-input optical arithmetic comparison 失效
标题翻译：用于进行多输入光学算术比较的方法和装置
公开(公告)号：US5191549A
公开(公告)日：1993-03-02
申请号：US700957
申请日：1991-05-14
申请人： Theodore L. Houk
发明人： Theodore L. Houk
IPC分类号： G06E1/02 , H03K19/14
CPC分类号： H03K19/14 , G06E1/02
摘要： An optical arithmetic comparator (OAC) is disclosed which is capable of comparing multiple numbers simultaneously, and indicating the common value of the multiple numbers being compared if the numbers are equal. The OAC includes at least two input channels each having a plurality of sources arranged in an identical pattern, the sources being capable of selective activation such that only one source is activated at a time within each of the channels to form a specific spatial light pattern, and a detector array which determines if the specific spatial light pattern indicated the numbers being compared are equal.
摘要翻译：公开了一种光学算术比较器（OAC），其能够同时比较多个数字，并且如果数字相等则指示正在比较的多个数字的公用值。 OAC包括至少两个输入通道，每个输入通道具有以相同图案排列的多个源，所述源能够选择性地激活，使得在每个通道内的一个时间仅激活一个源以形成特定的空间光图案，以及检测器阵列，其确定指示正被比较的数字的特定空间光图案是否相等。

52. 发明授权

US5179274A Method for controlling operation of optical systems and devices 失效
标题翻译：控制光系统和设备操作的方法
公开(公告)号：US5179274A
公开(公告)日：1993-01-12
申请号：US728925
申请日：1991-07-12
申请人： Jeffrey B. Sampsell
发明人： Jeffrey B. Sampsell
IPC分类号： G02B26/10 , H03K19/14 , H04N5/66
CPC分类号： H03K19/14
摘要： The invention described herein details a method to control the operating window of illumination for an optical device or system. By connecting together two light sensitive devices (46a and 46b), one very sensitive to light (46a), the other mildly sensitive to light (46b), it is possible to designate when essential signals (38) are allowed to pass to a device or system. The outputs of the two devices are fed through logic circuitry (52 and 54) which determines the output. The logic circuitry is selected dependent upon which operation window is chosen. The output of the logic is then connected to the control signal.

53. 发明授权

US5130528A Opto-photo-electric switch 失效
标题翻译：光电开关
公开(公告)号：US5130528A
公开(公告)日：1992-07-14
申请号：US662689
申请日：1991-03-01
申请人： Alfred Phillips, Jr.
发明人： Alfred Phillips, Jr.
IPC分类号： H01L27/15 , G02F1/015 , G02F3/00 , H01L31/14 , H03K17/78 , H03K19/14
CPC分类号： G02F3/00 , H03K17/78
摘要： A heterojunction optical switch is taught. Briefly stated, birefringence in the form of a Pockel Cell is utilized such that biasing of the Pockel Cell permits the passage of light therethrough. Preferably, a light detector and resistor are electrically in parallel with the Pockel Cell such that light impinging upon the light detector causes the Pockel Cell to be reverse biased with the result that a separate light source may pass through the Pockel Cell. In this fashion, the Pockel Cell operates as a true optical switch.

54. 发明授权

US4979138A High fan factor modified crossbar architecture and method for optical digital computing 失效
标题翻译：高风扇因子修正交叉结构和光学数字计算方法
公开(公告)号：US4979138A
公开(公告)日：1990-12-18
申请号：US395734
申请日：1989-08-18
申请人： Raymond Arrathoon
发明人： Raymond Arrathoon
IPC分类号： G06E1/02 , H03K19/14
CPC分类号： H03K19/14 , G06E1/02
摘要： A cross connection apparatus and method for mixing and merging multiple arrays of high optical fan-out factors and multiple arrays of high optical fan-in factors with electronic fan-in and fan-out factors contained within a fiber coupled cross connection array. The cross connection array includes embedded combinational and/or sequential logic devices and an array of optical detectors for receiving optical input signals and an array of output emitters for transmitting optical output signals. The apparatus enables any digital logic scheme requiring combinational and/or sequential logic to be effected in a hybrid optical/electronic manner. This architecture allows a wide variety of combinational and/or sequential logic functions for digital computation and other processes to be carried out at very high rates of speed with increased efficiency.
摘要翻译：一种交叉连接装置和方法，用于混合和合并高光学扇出因子的多个阵列和具有高光学扇形因数的多个阵列，其中包含在光纤耦合交叉连接阵列内的电子扇入和扇出因子。交叉连接阵列包括嵌入式组合和/或顺序逻辑器件以及用于接收光输入信号的光检测器阵列和用于传输光输出信号的输出发射器阵列。该装置使得能够以混合光学/电子方式实现需要组合和/或顺序逻辑的任何数字逻辑方案。该架构允许用于数字计算和其他处理的各种组合和/或顺序逻辑功能以非常高的速率以更高的效率进行。

55. 发明授权

US4926367A Method and apparatus for programmable optical crossbar logic array with decoders 失效
标题翻译：具有解码器的可编程光交叉逻辑阵列的方法和装置
公开(公告)号：US4926367A
公开(公告)日：1990-05-15
申请号：US335214
申请日：1989-04-07
申请人： Raymond Arrathoon
发明人： Raymond Arrathoon
IPC分类号： G06E1/02 , H03K19/14
CPC分类号： H03K19/14 , G06E1/02
摘要： Arrangements and methods for the design of a hybrid optical/electronic system that implements logic or computing functions. The system consists of a programmable hybrid optical/electronic INVERT-OR-INVERT-OR logic array that is functionally equivalent to a conventional AND-OR electronic programmable logic array (PLA) device with decoders. In the hybrid system, electronic decoders send spatially coded binary input information to a row of optical emitters. A programmable optical crossbar is then employed to perform a row by row INVERT-OR operation. Light emerging from the crossbar impinges on a column of optical detectors, and the individual detector outputs are subsequently INVERTED electronically. One or more of the resulting signals are then electronically or optically OR'd together.
摘要翻译：用于设计实现逻辑或计算功能的混合光学/电子系统的布置和方法。该系统由可编程混合光学/电子INVERT-OR-INVERT-OR逻辑阵列组成，功能上等同于具有解码器的常规AND-OR电子可编程逻辑阵列（PLA）器件。在混合系统中，电子解码器将空间编码的二进制输入信息发送到一排光发射器。然后使用可编程光学交叉开关来执行逐行INVERT-OR操作。从横梁出现的光照射在一列光学检测器上，并且各个检测器输出随后以电子方式反转。然后将一个或多个所得到的信号以电子方式或光学方式OR组合在一起。

56. 发明授权

US4904858A Programmable optical logic devices operable by measuring the ratio of optical data signal power to optical reference threshold power 失效
标题翻译：可编程光逻辑器件可通过测量光数据信号功率与光参考阈值功率之比来操作
公开(公告)号：US4904858A
公开(公告)日：1990-02-27
申请号：US359252
申请日：1989-05-31
申请人： Robert E. LaMarche
发明人： Robert E. LaMarche
IPC分类号： G02F3/00 , G02F3/02 , G06E1/00 , H03K19/14
CPC分类号： G02F3/028 , H03K19/14
摘要： Combinatorial (Boolean ) logical functions are provided in a programmable optical logic device by combining a symmetric self-electrooptic effect device (S-SEED) with a logic control element for optically programming the S-SEED to initiate logic operations in a predetermined mode. A predetermined reference threshold optical signal is applied to one input of the S-SEED while first and second optical data signals are jointly applied to another input of the S-SEED to permit the desired combinatorial logic operation to be performed on the optical data signals by the optical logic device. As such, the programmable optical logic device is said to perform threshold logic operations. Logic operations which may be programmed into the optical logic device include AND, OR and NOT functions. A single optical signal is provided as output from each optical logic device. In one embodiment of the invention, a first threshold optical signal is utilized to perform AND logic operation whereas a second threshold optical signal is employed for performing OR logic operation. Exclusive-OR operation is provided by performing both AND and OR logic operations in parallel on the same data signals with separate S-SEED devices and then using an S-SEED S-R flip-flop to process the output optical signals from each logic gate (e.g., AND output to R input and OR output to S input) for generating an Exclusive-OR output signal.
摘要翻译：组合（布尔）逻辑功能通过将对称自电光效应器件（S-SEED）与用于光学地编程S-SEED的逻辑控制元件组合起来以在预定模式下启动逻辑运算来提供可编程光逻辑器件。预定的参考阈值光信号被施加到S-SEED的一个输入端，而第一和第二光数据信号被共同地施加到S-SEED的另一个输入端，以允许对光数据信号执行所需的组合逻辑运算光逻辑器件。因此，可编程光逻辑器件被认为执行阈值逻辑运算。可编程到光学逻辑器件中的逻辑运算包括AND，OR和NOT功能。提供单个光信号作为每个光学逻辑器件的输出。在本发明的一个实施例中，利用第一阈值光信号来执行AND逻辑运算，而采用第二阈值光信号来执行OR逻辑运算。通过在具有单独的S-SEED设备的同一数据信号上并行执行AND和OR逻辑运算，然后使用S-SEED SR触发器来处理来自每个逻辑门的输出光信号（例如，，AND输出到R输入，OR输出到S输入），用于产生异或输出信号。

57. 发明授权

US4857762A Digital 2-of-3 selection and output circuit 失效
标题翻译：数字2/3选择和输出电路
公开(公告)号：US4857762A
公开(公告)日：1989-08-15
申请号：US113478
申请日：1987-10-28
申请人： Lutz Gaebel
发明人： Lutz Gaebel
IPC分类号： H03K19/14 , H03K19/23
CPC分类号： H03K19/23 , H03K19/14
摘要： For the operation of a technical system having increased safety requirements, all of the apparatus for increasing the safety and the availbility are provided in triple redundancy. As selection and output circuit, three redundant data channels (DE1, DE2, DE3) normally emitting the same information are respectively connected in pairs to three AND elements, each consisting of two optocouplers (OR1/OR4, OR2/OR5, OR3/OR6). The elements of the optocouplers are connected with a relay (RL) by an OR arrangement (WO).
摘要翻译：对于具有增加的安全要求的技术系统的操作，用于增加安全性和可用性的所有装置都以三重冗余提供。作为选择和输出电路，通常发射相同信息的三个冗余数据通道（DE1，DE2，DE3）分别分别连接到三个AND元件，每个AND元件由两个光耦合器（OR1 / OR4，OR2 / OR5，OR3 / OR6）组成，。光耦合器的元件通过OR布置（WO）与继电器（RL）连接。

58. 发明授权

US4818896A Optical transmitter driver with current peaking 失效
标题翻译：具有当前峰值的光发射机驱动器
公开(公告)号：US4818896A
公开(公告)日：1989-04-04
申请号：US90865
申请日：1987-08-28
申请人： Vicente V. Cavanna
发明人： Vicente V. Cavanna
IPC分类号： H01L33/00 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/155 , H04B10/26 , H04B10/28 , H03K19/14 , H03K17/12 , H03K17/64 , H03K19/086
CPC分类号： H04B10/502 , H04B10/508
摘要： A driver for an electro-optical transducer, such as a light-emitting diode (LED) is disclosed which shapes current pulses so as to contain "spikes" during turn-on and turn-off in order to quickly charge and discharge the junction and stray capacitances of the LED. Degeneration resistors interconnect the emitters of switching transistors used in a differential amplifier supplying the current to the LED and in a differential amplifier supplying a "peaking" current to the switching amplifier. A capacitor couples the amplifiers to conduct the additional current to the LED when it is initially turned on and charges the cathode of the LED. The emitter degeneration resistors couple the amplifiers to current sources and allow the amplifiers to be driven by emitter-coupled logic (ECL) gates without ringing. The resistors also linearize the transfer functions of the amplifiers so that the voltage swing of the ECL driver does not overly turn-off the transistors within the amplifiers, thereby improving response time.

59. 发明授权

US4622477A Light emitting diode driver circuit 失效
标题翻译：发光二极管驱动电路
公开(公告)号：US4622477A
公开(公告)日：1986-11-11
申请号：US673451
申请日：1984-11-21
申请人： Yoshihiro Uda
发明人： Yoshihiro Uda
IPC分类号： H04B10/60 , H03K5/02 , H03K17/60 , H04B10/00 , H04B10/40 , H04B10/50 , H04B10/80 , H03K19/14 , G06G7/12 , H03K3/26
CPC分类号： H04B10/502 , H03K17/603 , H03K5/02 , H04B10/564
摘要： An LED driver circuit of a digital optical transmitter for an optical fiber data link includes a differential amplifier with emitter coupled transistors, an LED being connected to the collector of one of the emitter coupled transistors. A current source is connected to the common emitters to enable switching of the emitter coupled transistors in response to an input signal. The input signal, a first delayed input signal and a second delayed input signal, are applied to the current source through an OR circuit, to render the current source conductive in response to said input signal, the first delayed input signal or the second delayed input signal. The first delayed input signal and an inverted first delayed input signal switch the emitter coupled transistors when the current source is conductive. As the current source is conductive at the transistor switching times, high speed switching with smooth charging and discharging of the LED junction capacitance is achieved. Further, since the current source turns on and off in response to the input signal current consumption is conserved.
摘要翻译：用于光纤数据链路的数字光发射机的LED驱动器电路包括具有发射极耦合晶体管的差分放大器，LED连接到发射极耦合晶体管之一的集电极。电流源连接到公共发射器，以响应于输入信号来启动发射极耦合晶体管的切换。输入信号，第一延迟输入信号和第二延迟输入信号通过OR电路施加到电流源，以使电流源响应于所述输入信号，第一延迟输入信号或第二延迟输入信号。当电流源导通时，第一延迟输入信号和反相第一延迟输入信号切换发射极耦合晶体管。由于电流源在晶体管切换时间导通，因此实现了LED结电容平滑充放电的高速切换。此外，由于电流源响应于输入信号而导通和截止，因此电流消耗被保存。

60. 发明授权

US4568838A Control circuit for a semiconductor element with a control electrode 失效
标题翻译：具有控制电极的半导体元件的控制电路
公开(公告)号：US4568838A
公开(公告)日：1986-02-04
申请号：US750229
申请日：1985-06-28
申请人： Kazuo Honda , Yasuo Matsuda , Shuji Musha
发明人： Kazuo Honda , Yasuo Matsuda , Shuji Musha
IPC分类号： H04B1/74 , H03K17/16 , H03K19/003 , H03K19/0175 , H03K19/14 , H04L25/02 , H03K17/60 , H03K3/42
CPC分类号： H03K17/16
摘要： A control circuit for a semiconductor element with a control electrode includes a signal transmission circuit, in which two switching elements made conductive when a control signal is supplied from a control signal source to the switching elements through a signal insulating element, are provided so that the control signal is transferred to a turn-on circuit for the semiconductor element only when the switching elements are simultaneously made conductive.
摘要翻译：用于具有控制电极的半导体元件的控制电路包括信号传输电路，其中当控制信号通过信号绝缘元件从控制信号源提供给开关元件时，两个开关元件导通，这样，只有当开关元件同时导通时，才将控制信号传送到半导体元件的导通电路。

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