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公开(公告)号：US5710424A
公开(公告)日：1998-01-20
申请号：US544718
申请日：1995-10-18
CPC分类号： G01S17/936 , G01S7/4861 , G01S7/487
摘要： The present invention relates to an apparatus and a method for detecting pulses of light energy from at least two fields of view. A first detector having a first bias detects a pulse received at a first point in time. A second detector having a second bias, different from the first bias, detects a pulse received at a second point in time. A processor compares an output of the first detector with a first threshold to produce a signal representing receipt of a pulse from a first field of view. The processor also compares an output of the second detector with a second threshold, different from the first threshold, to produce a signal representing receipt of a pulse from a second field of view. Because the detectors are biased with different biases, the detected pulses are easily distinguished. Thus, multiple fields of view can be detected without complex hardware. The detectors can be biased with opposite polarities so that background noise is cancelled out. In a system and method for detecting pulses of light energy from at least two fields of view, a transmitter transmits pulses of light energy into a first field of view and into a second field of view. A single transmitter can be used to emit signals towards multiple fields of view. Thus, the transmitter only has to emit signals once for multiple samples, increasing the number of samples that can be taken per sample period.
摘要翻译： 本发明涉及一种用于从至少两个视野检测光能的脉冲的装置和方法。 具有第一偏置的第一检测器检测在第一时间点接收到的脉冲。 具有不同于第一偏压的第二偏压的第二检测器检测在第二时间点接收的脉冲。 处理器将第一检测器的输出与第一阈值进行比较，以产生表示从第一视场接收脉冲的信号。 处理器还将第二检测器的输出与不同于第一阈值的第二阈值进行比较，以产生表示从第二视场接收脉冲的信号。 由于检测器被偏置为不同的偏置，因此检测到的脉冲容易被区分开。 因此，可以在没有复杂硬件的情况下检测多个视场。 检测器可以偏置相反的极性，从而消除背景噪声。 在用于从至少两个视野检测光能的脉冲的系统和方法中，发射器将光能的脉冲发射到第一视野并进入第二视场。 单个发射机可用于向多个视场发射信号。 因此，发射机只需要为多个样本发射一次信号，增加每个采样周期可以采集的采样数。
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公开(公告)号：US07447440B2
公开(公告)日：2008-11-04
申请号：US10847948
申请日：2004-05-17
IPC分类号： H04B10/00
CPC分类号： H04B10/40 , H04B10/691 , H05K1/144
摘要： Techniques for multiple channel optical transceivers for use in network devices are provided. In general, a row of optical emitters are disposed adjacent to a row of optical detectors in order to provide increased bandwidth and reduced optical crosstalk. Each row can be electrically coupled to an associated transmitting electronic board or detecting electronic board to reduce electronic crosstalk. The configuration of the optical emitters and detectors allow enhanced flexibility in dressing out the optical fibers and routing them to other network devices.
摘要翻译： 提供了用于网络设备的多通道光收发器的技术。 通常，一排光发射器被布置成与一行光学检测器相邻，以便提供增加的带宽和减少的光学串扰。 每行可以电耦合到相关联的发送电子板或检测电子板以减少电子串扰。 光发射器和检测器的配置允许增强光纤敷设的灵活性并将它们路由到其他网络设备。
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3.发明授权公开(公告)号：US06792015B1
公开(公告)日：2004-09-14
申请号：US09751996
申请日：2000-12-29
IPC分类号： H01S304
CPC分类号： H01S5/02415 , H01S5/042
摘要： An optical transceiver and method therefore provides a cooled laser diode configured to run in either a low power mode or a standard mode. A method for a thermo-electric cooler includes coupling the thermo-electric cooler to a laser diode, operating the thermo-electric cooler in one of a low power mode and a standard mode, and switching between the low power mode and the standard mode. The laser diode is configured to transmit signals in the low power mode and the standard mode. The low power mode maintains the laser diode at a temperature within a predetermined range of temperatures. The standard mode maintains the laser diode at a temperature that corresponds to a predetermined wavelength of light output from the laser diode. In one embodiment, the low power mode is a Time Division Multiplexing (TDM) mode and the standard mode is a Dense Wavelength Divison Multipexing (DWDM) mode. The optical transceiver includes a temperature circuit, a thermo-electric cooler coupled to the temperature circuit, and a laser diode coupled to the thermo-electric cooler. The thermo-electric cooler is responsive to inputs from the temperature circuit, the inputs identifying one of at least a first mode and a second mode, wherein a choice of mode is a function of a performance requirement. The optical transceiver includes a temperature circuit that includes a switch configured to alter the thermo-electric cooler between the first mode and the second mode.
摘要翻译： 因此，光收发器和方法提供了被配置为以低功率模式或标准模式运行的冷却激光二极管。 热电冷却器的方法包括将热电冷却器耦合到激光二极管，以低功率模式和标准模式之一操作热电冷却器，以及在低功率模式和标准模式之间切换。 激光二极管被配置为以低功率模式和标准模式传输信号。 低功率模式将激光二极管保持在预定温度范围内的温度。 标准模式将激光二极管保持在对应于从激光二极管输出的光的预定波长的温度。 在一个实施例中，低功率模式是时分复用（TDM）模式，标准模式是密集波分复用多路（DWDM）模式。 光收发器包括温度电路，耦合到温度电路的热电冷却器和耦合到热电冷却器的激光二极管。 热电冷却器响应于来自温度电路的输入，所述输入识别至少第一模式和第二模式中的一个，其中模式的选择是性能要求的函数。 光收发器包括温度电路，其包括被配置为在第一模式和第二模式之间改变热电冷却器的开关。
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公开(公告)号：US06580735B1
公开(公告)日：2003-06-17
申请号：US09540294
申请日：2000-03-31
IPC分类号： H01S313
CPC分类号： H01S5/0425
摘要： The ultra-linear laser drive circuit of the present invention includes a transconductance operational amplifier circuit integrated with a low-pass filter. The transconductance operational amplifier circuit linearizes the output power of the laser drive circuit. The low-pass filter is a second-order low-pass filter which reduces the noise of the laser drive circuit.
摘要翻译： 本发明的超线性激光驱动电路包括与低通滤波器集成的跨导运算放大器电路。 跨导运算放大器电路使激光驱动电路的输出功率线性化。 低通滤波器是二阶低通滤波器，可降低激光驱动电路的噪声。
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公开(公告)号：US07471897B1
公开(公告)日：2008-12-30
申请号：US10893669
申请日：2004-07-16
IPC分类号： H04B10/08
CPC分类号： H04B10/0779 , H04B10/035
摘要： A transceiver module having transmit data lines looped back to receive data lines that emulates faults without requiring optical subassemblies inside the module or optical test equipment external to the module. That data lines can be buffered for transparent probing of signals. One or more values directing emulation of a fault are received, such as over a two wire serial interface, and the fault is emulated. The values can be values for electronic pins of the transceiver module, values for operation status of the transceiver module or values for characteristics of signals within the transceiver module.
摘要翻译： 具有发送数据线的收发器模块，其回送以接收模拟故障的数据线，而不需要模块内部的光学子组件或模块外部的光学测试设备。 可以对数据线进行缓冲，以便透明地探测信号。 接收到一个或多个指示故障仿真的值，例如通过双线串行接口，并且模拟故障。 这些值可以是收发器模块的电子引脚的值，收发器模块的操作状态值或收发器模块内信号特性的值。
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公开(公告)号：US07729416B2
公开(公告)日：2010-06-01
申请号：US11383348
申请日：2006-05-15
IPC分类号： H04B1/38
CPC分类号： H04L25/4917 , H04L5/1423 , H04L12/10 , H04L12/40136 , H04L49/3054 , H04L49/352
摘要： A method, an apparatus and a system for gigabit Ethernet (GbE) using only 2 pairs of wires for a single communications link are described. This network communication may be referred to as 2-pair 1000Base-T. GbE using only 2 wire pairs per link may offer increased port density over a conventional 1000Base-T link. As an alternative, 2-pair 1000Base-T may also provide increased link bandwidth over the existing 1000Base-T standard. When a given number of conventional links in a system are replaced by the same number of 2-pair 1000Base-T links, the system bandwidth may also be consequently increased. Transformers and power supplies may be combined with GbE utilizing only two wire pairs to provide power over Ethernet (PoE) solutions.
摘要翻译： 描述了用于单个通信链路仅使用2对导线的千兆以太网（GbE）的方法，装置和系统。 该网络通信可以被称为2对1000Base-T。 每个链路仅使用2对线的GbE可能会比传统的1000Base-T链路提供增加的端口密度。 作为替代方案，2对1000Base-T还可以提供比现有的1000Base-T标准更大的链路带宽。 当系统中给定数量的常规链路被相同数量的2对1000Base-T链路替换时，系统带宽也可能因此增加。 变压器和电源可以与仅使用两根线对的GbE组合以提供以太网供电（PoE）解决方案。
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公开(公告)号：US06684350B1
公开(公告)日：2004-01-27
申请号：US09746895
申请日：2000-12-22
IPC分类号： G01R3128
摘要： A method for testing a signal path for mark ratio tolerance includes generating a varying test pattern by selecting between a first pattern and a second pattern according to a defined sequence; and sending the varying test pattern over the signal path. An apparatus disposed in a communication system includes a selection circuit for generating a varying test pattern to send over the signal path, the selection circuit generating the varying test pattern by selecting between a first pattern and a second pattern according to a select sequence signal, and a sequencer coupled to the selection circuit, the sequencer providing the select sequence signal to the selection circuit, the sequencer generating the select sequence signal according to a mode value. The mark ratio tolerance of a system can be tested, varying the data density of one portion of the signal path while maintaining a constant data density on another portion of the signal path.
摘要翻译： 用于测试用于标记比容差的信号路径的方法包括：通过根据所定义的序列在第一图案和第二图案之间选择来生成变化的测试图案; 并在信号路径上发送变化的测试模式。 设置在通信系统中的装置包括：选择电路，用于产生通过信号路径发送的变化的测试模式，所述选择电路根据选择序列信号在第一模式和第二模式之间进行选择来产生变化的测试模式;以及 定序器，耦合到所述选择电路，所述定序器将所述选择序列信号提供给所述选择电路，所述定序器根据模式值产生所述选择序列信号。 可以测试系统的标记比容差，改变信号路径的一部分的数据密度，同时在信号路径的另一部分保持恒定的数据密度。
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8.发明授权System for determining orifice interspacings of cooperative ink jet print/cartridges 失效用于确定协同喷墨打印/墨盒的孔口间隔的系统
公开(公告)号：US4709244A
公开(公告)日：1987-11-24
申请号：US945137
申请日：1986-12-22
IPC分类号： B41J2/21 , B41J2/045 , B41J2/055 , B41J2/125 , B41J2/145 , B41J25/34 , B41J29/42 , G01D15/16
摘要： Ink jet printing apparatus of the type having a carriage that traverses a printing zone with a plurality of insertable print/cartridges includes a system for use in coordinating the transverse printing of such print/cartridges to compensate for variable transverse print/cartridge locations. The system employs an electrooptical scanner located along the transverse path of the carriage for signalling the passage of a print/cartridge feature(s) that are indicative precisely of an instantaneous horizontal position, vis-a-vis the scanner, of the orifice array of a passing print/cartridge; a carriage detector for periodically sensing and signalling the successive instantaneous positions of the carriage during its traversing movement; and means, responsive to signal inputs from the scanner and the carriage detector, for computing and storing horizontal location data for each print/cartridge orifice array.
摘要翻译： 具有穿过具有多个可插入打印/墨盒的打印区域的托架的类型的喷墨打印设备包括用于协调这种打印/墨盒的横向打印以补偿可变的横向打印/墨盒位置的系统。 该系统采用沿着滑架的横向路径定位的电光扫描器，用于指示打印/盒式存储器特征的通过，其精确地指示与扫描器相对应的扫描器的瞬时水平位置， 通过的打印/墨盒; 滑架检测器，用于周期性地感测和指示滑架在其横移运动期间的连续瞬时位置; 以及响应于来自扫描器和托架检测器的信号输入的装置，用于计算和存储每个打印/墨盒孔阵列的水平位置数据。
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公开(公告)号：US08189348B2
公开(公告)日：2012-05-29
申请号：US12174713
申请日：2008-07-17
申请人： Mohammad Reza Danesh Kadivar , Hong Huynh , Saeed Seyed , James T. Theodoras, II , Susheela Narasimhan
发明人： Mohammad Reza Danesh Kadivar , Hong Huynh , Saeed Seyed , James T. Theodoras, II , Susheela Narasimhan
IPC分类号： H05K7/14
CPC分类号： H05K7/142
摘要： In one embodiment, the present disclosure refers to an apparatus comprising a bracket having a base configured to receive and hold a first electronic element. The bracket comprises at least one flange extending from the base and at least one guide acting to align the bracket and first electronic element with a second electronic element. The bracket also comprises at least one fastener aligned with the at least one guide and acting to engage and hold the second electronic element.
摘要翻译： 在一个实施例中，本公开涉及包括具有被配置为接收和保持第一电子元件的基座的支架的装置。 支架包括至少一个从基座延伸的凸缘和至少一个引导件，其用于将支架和第一电子元件与第二电子元件对准。 支架还包括与至少一个引导件对准的至少一个紧固件，并且用于接合和保持第二电子元件。
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10.发明授权Multiple fiber optic gigabit ethernet links channelized over single optical link 有权多个光纤千兆以太网链路通过单个光链路进行通道化公开(公告)号：US07945164B2
公开(公告)日：2011-05-17
申请号：US11420356
申请日：2006-05-25
IPC分类号： H04J14/02
摘要： A method, an apparatus, and a system where multiple lower bandwidth optic Ethernet (e.g. 1000Base-FX) signals can be interleaved or encoded onto a single fiber optic link by overclocking the physical layer elements in such a manner as to be transparent to the data link layer and other higher network layers in the Open Systems Interconnection Reference Model (OSI Model) are provided. Such embodiments may provide increased port density over the existing fiber optic gigabit Ethernet (GbE) standards. In embodiments where multiple GbE signals are not channelized, overclocking the physical layer elements may provide increased bandwidth for a single link over existing fiber optic GbE standards.
摘要翻译： 一种方法，装置和系统，其中多个下带宽光纤以太网（例如1000Base-FX）信号可以通过以对数据透明的方式超频物理层元件而被交织或编码到单个光纤链路上 提供了开放系统互连参考模型（OSI模型）中的链路层和其他较高的网络层。 这样的实施例可以提供比现有的光纤吉比特以太网（GbE）标准更高的端口密度。 在多个GbE信号不被信道化的实施例中，物理层元件的超频可以通过现有光纤GbE标准为单个链路提供增加的带宽。
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