会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 32. 发明申请
    • Laser driver circuit for externally modulated lasers
    • 用于外部调制激光器的激光驱动电路
    • US20050232319A1
    • 2005-10-20
    • US10995684
    • 2004-11-23
    • T.G. MasonDev KumarGiorgio Giaretta
    • T.G. MasonDev KumarGiorgio Giaretta
    • H01S3/00H01S5/042
    • H01S5/042H01S5/0427
    • Systems and methods for biasing an externally modulated laser. An inductorless bias T network is provided that includes a terminating resistor in series with a capacitor. The capacitor is an open circuit for a bias signal and a virtual ground for an RF signal. Thus, the RF signal is terminated by the terminating resistor without dissipating the bias signal through a ground return path of the RF signal. Using a charge pump inverter, a positive supply can be used to positively bias a laser and negatively bias the external modulator through the terminating resistor. A negative power supply is not required. A swing voltage provided by the RF signal causes the external modulator to modulate the light emitted by the laser.
    • 用于偏置外部调制激光器的系统和方法。 提供无电感偏置T网络,其包括与电容器串联的终端电阻器。 电容器是用于偏置信号的开路和用于RF信号的虚拟接地。 因此,RF信号由终端电阻终止,而不通过RF信号的接地返回路径消散偏置信号。 使用电荷泵逆变器,可以使用正电源来对激光器进行正偏置,并通过端接电阻对外部调制器进行负偏置。 不需要负电源。 由RF信号提供的摆幅电压使外部调制器调制由激光发射的光。
    • 35. 发明授权
    • System and method for reducing interference in an optical data stream
    • 减少光数据流干扰的系统和方法
    • US06898379B2
    • 2005-05-24
    • US10288324
    • 2002-11-05
    • Thomas J. LenoskyJan LipsonGiorgio Giaretta
    • Thomas J. LenoskyJan LipsonGiorgio Giaretta
    • H04B10/158H04B10/18H04B10/00
    • H04B10/6971H04B10/25133H04B10/695
    • An interference-reducing optoelectronic device determines the value of a current data bit in an optical data stream. A receiver receives the optical data stream, which is converted to a series of samples by a D/A converter. A set of adaptive filters, each filter corresponding to a unique possible value for one or more prior data bits, filters the series of samples utilizing variable tap coefficients to generate filtered output values. The variable tap coefficients are at least partially different than the variable tap coefficients of another adaptive filter. Comparators compare the filtered output values against filter-specific adaptive threshold values to generate tentative values for the current data bit. A delay mechanism delays a determined value for the prior data bits, and a selection mechanism determines the value of the current data bit by selecting the tentative value corresponding to the delayed determined value of the prior data bits.
    • 减少干涉的光电子器件确定光学数据流中当前数据位的值。 接收器接收光数据流,其通过D / A转换器转换成一系列采样。 一组自适应滤波器,每个滤波器对应于一个或多个先前数据位的唯一可能值,利用可变抽头系数对该系列样本进行滤波以产生滤波后的输出值。 可变抽头系数至少部分地不同于另一自适应滤波器的可变抽头系数。 比较器将滤波后的输出值与滤波器特定的自适应阈值进行比较,以产生当前数据位的临时值。 延迟机制延迟先前数据位的确定值,并且选择机制通过选择与先前数据位的延迟确定值相对应的试验值来确定当前数据位的值。