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    • 3. 发明申请
    • OPTICAL MODULATOR UTILIZING MULTI-LEVEL SIGNALING
    • 光调制器利用多级信号
    • WO2008051429A3
    • 2008-08-21
    • PCT/US2007022200
    • 2007-10-18
    • SIOPTICAL INCSHASTRI KALPENDUDAMA BIPIN
    • SHASTRI KALPENDUDAMA BIPIN
    • G02F1/035
    • G02F1/2255G02F1/0123H04B10/541
    • An optical modulator is formed to include a plurality of separate electrodes disposed along one arm, the electrodes having different lengths and driven with different signals to provide for multi-level signaling (e.g., PAM-4 signaling). By using separate drivers to energize the different sections, the number of sections energized at a given point in time will define the net phase shift introduced to the optical signal. The total length of the combined modulator sections is associated with a p phase shift (180°). Each section is driven by either a digital "one" or "zero", so as to create the multi-level modulation. An essentially equal change in power between adjacent transmitted symbols is accomplished by properly adjusting the lengths of each individual section.
    • 光学调制器被形成为包括沿着一个臂设置的多个单独的电极,这些电极具有不同的长度并且以不同的信号驱动以提供多级信令(例如,PAM-4信令)。 通过使用单独的驱动器来激励不同的部分,在给定时间点激励的部分的数量将限定引入光信号的净相移。 组合调制器部分的总长度与p相移(180°)相关联。 每个部分由数字“一”或“零”驱动,以创建多级调制。 通过适当调整每个单独部分的长度来实现相邻发射符号之间的功率的基本相等的变化。
    • 4. 发明申请
    • OPTICAL MODULATOR UTILIZING MULTI-LEVEL SIGNALING
    • 光学调制器利用多级信号
    • WO2008051429A2
    • 2008-05-02
    • PCT/US2007/022200
    • 2007-10-18
    • SIOPTICAL, INC.SHASTRI, KalpenduDAMA, Bipin
    • SHASTRI, KalpenduDAMA, Bipin
    • G02F1/035
    • G02F1/2255G02F1/0123H04B10/541
    • An optical modulator is formed to include a plurality of separate electrodes disposed along one arm, the electrodes having different lengths and driven with different signals to provide for multi-level signaling (e.g., PAM-4 signaling). By using separate drivers to energize the different sections, the number of sections energized at a given point in time will define the net phase shift introduced to the optical signal. The total length of the combined modulator sections is associated with a π phase shift (180°). Each section is driven by either a digital "one" or "zero", so as to create the multi-level modulation. An essentially equal change in power between adjacent transmitted symbols is accomplished by properly adjusting the lengths of each individual section.
    • 光学调制器被形成为包括沿着一个臂布置的多个单独的电极,电极具有不同的长度并用不同的信号驱动以提供多级信号(例如,PAM-4信令)。 通过使用单独的驱动器来激励不同的部分,在给定时间点通电的部分的数量将定义引入光信号的净相移。 组合调制器部分的总长度与p相移(180°)相关。 每个部分由数字“一”或“零”驱动,以创建多级调制。 通过适当调整每个单独部分的长度来实现相邻传输符号之间的功率基本上相等的变化。
    • 7. 发明申请
    • INTEGRATED APPROACH FOR DESIGN, SIMULATION AND VERIFICATION OF MONOLITHIC, SILICON-BASED OPTO-ELECTRONIC CIRCUITS
    • 单片硅基光电路的设计,仿真和验证综合方法
    • WO2006007474A2
    • 2006-01-19
    • PCT/US2005022254
    • 2005-06-22
    • SIOPTICAL INCSHASTRI KALPENDUPATHAK SOHAMGOTHOSKAR PRAKASHMOSINSKIS PAULIUSDAMA BIPIN
    • SHASTRI KALPENDUPATHAK SOHAMGOTHOSKAR PRAKASHMOSINSKIS PAULIUSDAMA BIPIN
    • G06F17/50G06G7/62
    • G06F17/5036G06F17/5068
    • Computer-aided design (CAD) tools are used to perform the integrated design, verification and layout of electrical and optical components in a monolithic, silicon-­based electro-optic chip. Separate top-level behavioral logic designs are prepared for the three different types of elements included within the final, silicon-based monolithic structure: (1) digital electronic integrated circuit elements; (2) analog/mixed signal electronic integrated circuit elements; and (3) opto-electronic elements (including passive and active optical elements). Once the behavioral logic design is completed, the results are combined and co-simulated. A physical layout design is developed and verified for each different type of element in the circuit. The separate physical layouts are then co-verified, to assess the properties of the overall physical design. The results of the co-simulation are compared to the results of the co-verification, with alterations made in the logic design and/or the physical layout until the desired operating parameters are obtained. Once the desired results are generated, conventional wafer-level fabrication operations are then considered to provide a final product ("tape out").
    • 计算机辅助设计(CAD)工具用于在单片硅基电光芯片中执行电气和光学部件的集成设计,验证和布局。 为最终的硅基单片结构中包含的三种不同类型的元件准备了独立的顶级行为逻辑设计:(1)数字电子集成电路元件; (2)模拟/混合信号电子集成电路元件; 和(3)光电元件(包括无源和有源光学元件)。 一旦行为逻辑设计完成,结果将被合并并共同模拟。 为电路中的每种不同类型的元件开发和验证物理布局设计。 然后将单独的物理布局共同验证,以评估整体物理设计的属性。 将共模拟的结果与协同验证的结果进行比较,在逻辑设计和/或物理布局中进行改变,直到获得所需的操作参数。 一旦产生期望的结果,则常规晶圆级制造操作被认为是提供最终产品(“磁带输出”)。