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1. 发明授权

US07280764B2 Optical signal multiplexer/demultiplexer employing pseudorandom mode modulation 失效
标题翻译：采用伪随机模式调制的光信号多路复用器/解复用器
公开(公告)号：US07280764B2
公开(公告)日：2007-10-09
申请号：US10087386
申请日：2002-03-01
申请人： Ken A. Nishimura , Jonathan Simon
发明人： Ken A. Nishimura , Jonathan Simon
IPC分类号： H04B10/00
CPC分类号： H04B10/532
摘要： An optical signal multiplexer/demultiplexer using an orthogonal pseudorandom (PRN) coding scheme for optical mode modulation to produce a plurality of independent optical signals that may be combined into one multiplex signal for transmission over an optical fiber to the receiving end, where the multiplex signal may be demultiplexed by relying on the orthogonal properties of the PRN code to isolate each independent optical signal from the transmitted multiplex signal. In channels subject to mode modulation distortion, one of the signal components may be used as a pilot signal to obtain a correction for channel mode modulation distortion. The PRN optical signal multiplexer/demultiplexer is particularly useful with polarization mode modulation.
摘要翻译：一种光信号多路复用器/解复用器，其使用用于光模式调制的正交伪随机（PRN）编码方案，以产生可以被组合成一个多路复用信号的多个独立光信号，以在光纤上传输到接收端，其中多路复用信号可以通过依赖于PRN码的正交特性来解复用，以将每个独立的光信号与发送的多路复用信号隔离开来。在受到模式调制失真的通道中，信号分量之一可以用作导频信号，以获得信道模式调制失真的校正。 PRN光信号多路复用器/解复用器在偏振模式调制方面特别有用。

2. 发明授权

US06780678B2 Cooling of optoelectronic elements 有权
标题翻译：光电元件的冷却
公开(公告)号：US06780678B2
公开(公告)日：2004-08-24
申请号：US10754004
申请日：2004-01-08
申请人： Jonathan Simon , Ken A. Nishimura
发明人： Jonathan Simon , Ken A. Nishimura
IPC分类号： H01L2144
CPC分类号： H01L31/024 , H01S5/02423
摘要： Optical systems for cooling optoelectronic elements are provided. A representative optical system includes a substrate and a first optoelectronic element supported by the substrate. Additionally, a first channel is formed in the substrate and a first heat transfer fluid is arranged in the first channel. The first heat transfer fluid is thermally coupled with the first optoelectronic element so that at least a quantity of heat produced by the first optoelectronic element is dissipated by the first heat transfer fluid. Methods and other systems also are provided.
摘要翻译：提供了用于冷却光电元件的光学系统。代表性的光学系统包括衬底和由衬底支撑的第一光电元件。此外，第一通道形成在基板中，第一传热流体布置在第一通道中。第一传热流体与第一光电子元件热耦合，使得由第一光电元件产生的至少一定量的热量被第一传热流体消散。还提供了方法和其它系统。

3. 发明授权

US06713866B2 Cooling of optoelectronic elements 失效
公开(公告)号：US06713866B2
公开(公告)日：2004-03-30
申请号：US10127290
申请日：2002-04-22
申请人： Jonathan Simon , Ken A. Nishimura
发明人： Jonathan Simon , Ken A. Nishimura
IPC分类号： H01L2334
CPC分类号： H01L31/024 , H01S5/02423
摘要： Optical systems for cooling optoelectronic elements are provided. A representative optical system includes a substrate and a first optoelectronic element supported by the substrate. Additionally, a first channel is formed in the substrate and a first heat transfer fluid is arranged in the first channel. The first heat transfer fluid is thermally coupled with the first optoelectronic element so that at least a quantity of heat produced by the first optoelectronic element is dissipated by the first heat transfer fluid. Methods and other systems also are provided.

4. 发明授权

US07295589B2 Frequency modulated vertical cavity laser 有权
标题翻译：调频垂直腔激光器
公开(公告)号：US07295589B2
公开(公告)日：2007-11-13
申请号：US10368177
申请日：2003-02-15
申请人： Frank H. Peters , Ken A. Nishimura , Jonathan Simon , Kirk S. Giboney
发明人： Frank H. Peters , Ken A. Nishimura , Jonathan Simon , Kirk S. Giboney
IPC分类号： H01S5/00
CPC分类号： H01S5/06203 , H01S5/0622 , H01S5/183 , H01S5/18358
摘要： A frequency modulated (FM) vertical cavity surface emitting laser (VCSEL). The frequency modulated VCSEL includes a mirror region that has an active region. The frequency modulated VCSEL also includes a phase adjustment region for use in altering the characteristics of the VCSEL. For example, by changing the index of refraction in the phase adjustment region, the wavelength of the VCSEL can be changed, resulting in frequency modulation.
摘要翻译：调频（FM）垂直腔表面发射激光器（VCSEL）。调频VCSEL包括具有有源区域的镜像区域。调频VCSEL还包括用于改变VCSEL的特性的相位调整区域。例如，通过改变相位调整区域中的折射率，可以改变VCSEL的波长，从而进行频率调制。

5. 发明授权

US06956996B2 Tri-state optical systems and methods 有权
标题翻译：三态光学系统和方法
公开(公告)号：US06956996B2
公开(公告)日：2005-10-18
申请号：US10184584
申请日：2002-06-27
申请人： Gary B. Gordon , Ken A. Nishimura , Jonathan Simon
发明人： Gary B. Gordon , Ken A. Nishimura , Jonathan Simon
IPC分类号： G02B6/28 , G02B6/36 , G02B6/26
CPC分类号： G02B6/2852 , G02B6/2821 , G02B6/3636
摘要： Optical systems are provided. A representative optical system includes an optical transceiver with an optical source and an optical receiver. The system also includes an optical bus. At least one of the optical source and the optical receiver is optically coupled to an intermediate portion of the optical bus. The optical source provides optical signals for propagation by the optical bus, and the optical receiver detects optical signals differentially. Methods and other systems also are provided.
摘要翻译：提供光学系统。代表性的光学系统包括具有光源和光接收器的光收发器。该系统还包括一个光学总线。光源和光接收器中的至少一个光学耦合到光总线的中间部分。光源提供用于由光总线传播的光信号，并且光接收器差分地检测光信号。还提供了方法和其它系统。

6. 发明授权

US08680915B1 Techniques to reduce memory effect or inter-symbol interference (ISI) in circuits using op-amp sharing 有权
标题翻译：降低使用运算放大器共享的电路中的记忆效应或符号间干扰（ISI）的技术
公开(公告)号：US08680915B1
公开(公告)日：2014-03-25
申请号：US13306019
申请日：2011-11-29
申请人： Cheongyuen Tsang , Ken A. Nishimura
发明人： Cheongyuen Tsang , Ken A. Nishimura
IPC分类号： H03F1/02
CPC分类号： H03F3/005 , H03F3/45188 , H03F3/45632 , H03F2203/45368 , H03F2203/45371 , H03F2203/45644
摘要： An amplifier system and method that eliminates memory effects due to amplifier sharing. The amplifier has a plurality of input stages. An input to be amplified is applied to one of the input stages of the amplifier, while the other input stages are turned off and reset. The inputs of the unused input stages are thus reset and equalized while the other input stage is turned on to receive the input to be amplified. An explicit reset phase is not needed.
摘要翻译：放大器系统和方法，消除由放大器共享造成的记忆效应。放大器具有多个输入级。要放大的输入端被施加到放大器的一个输入级，而其他输入级被关闭并被复位。因此，未使用的输入级的输入被复位和均衡，而另一个输入级被接通以接收待放大的输入。不需要明确的复位阶段。

7. 发明授权

US07880710B2 Differential drive circuit and method for generating an a.c. differential drive signal 失效
标题翻译：微分驱动电路及其产生方法差分驱动信号
公开(公告)号：US07880710B2
公开(公告)日：2011-02-01
申请号：US11685330
申请日：2007-03-13
申请人： Oliver D. Landolt , Ken A. Nishimura
发明人： Oliver D. Landolt , Ken A. Nishimura
IPC分类号： G09G3/36 , G06G7/20 , G06G7/22 , G06F7/556 , H03K5/22 , H03K5/153
CPC分类号： G09G3/3622 , G09G3/3681 , G09G3/3692
摘要： The differential drive circuit generates a differential drive signal having a root mean square value defined by a digital input value. The differential drive signal includes a first differential component and a second differential component. The circuit comprises a first differential component generator and a second differential component generator. The first differential component generator is for counting the clock signal to generate successive values of a periodic count. Each of the values includes a most-significant bit. The first differential component generator is additionally for generating the first differential component in response to successive ones of the most-significant bit of the count. The second differential component generator is for generating the second differential component in response to the digital input value and the successive values of the count.
摘要翻译：差分驱动电路产生具有由数字输入值定义的均方根值的差分驱动信号。差分驱动信号包括第一差分分量和第二差分分量。电路包括第一差分分量发生器和第二差分分量发生器。第一差分分量发生器用于计数时钟信号以产生周期性计数的连续值。每个值都包含最重要的位。第一差分分量发生器另外用于响应于计数的最高有效位中的连续的位产生第一差分分量。第二差分分量发生器用于响应于数字输入值和计数的连续值产生第二差分分量。

8. 发明授权

US07731409B2 Illumination device and method for producing a spatial pattern of light at different wavelengths 有权
标题翻译：用于产生不同波长的光的空间图案的照明装置和方法
公开(公告)号：US07731409B2
公开(公告)日：2010-06-08
申请号：US11263234
申请日：2005-10-31
申请人： Ken A. Nishimura
发明人： Ken A. Nishimura
IPC分类号： F21V7/04
CPC分类号： G02B6/0008 , G02B6/0035 , G02F1/133603
摘要： An illumination device for use in display devices produces a spatial pattern of light at different wavelengths using multiple light sources and waveguides. Each light source emits light at a different wavelength. The waveguides define optical apertures that are spatially arranged in a predetermined pattern, and each waveguide is optically coupled to one of the light sources to produce the spatial pattern of light at wavelengths corresponding to the predetermined pattern.
摘要翻译：用于显示装置的照明装置利用多个光源和波导产生不同波长的光的空间图案。每个光源发射不同波长的光。波导限定了以预定图案空间地布置的光学孔，并且每个波导光学耦合到一个光源以产生对应于预定图案的波长的空间图案。

9. 发明授权

US07020397B2 Optical retiming of an optical data signal 有权
公开(公告)号：US07020397B2
公开(公告)日：2006-03-28
申请号：US10035528
申请日：2001-10-23
申请人： Brian E. Lemoff , Ken A. Nishimura
发明人： Brian E. Lemoff , Ken A. Nishimura
IPC分类号： H04B10/00
CPC分类号： H04B10/299 , H04L7/0075
摘要： An optical retimer is provided that retimes an optical data signal entirely in the optical domain, thus eliminating the need for optical-to-electrical and electrical-to-optical converters, which are needed to perform retiming in the electrical domain. Eliminating these conversion steps also eliminates, or at least decreases, the potential for errors in the retimed optical signal, such as jitter. The optical retimer samples the optical data signal during a clock cycle that has been determined by clock recovery, allows the sampled signal to traverse an optical pathway for the remainder of the cycle, out-couples a fraction of the sampled optical signal each time the signal traverses the optical pathway, and amplifies the signal traversing the pathway to maintain the signal at the power level it had when it was sampled. By the end of the clock cycle, the out-coupled signal corresponds to a retimed version of the original signal, synchronized to the recovered clock signal.

10. 发明授权

US06614952B2 Programmable optical cross-connector using an array of intersecting waveguides 失效
标题翻译：使用相交波导阵列的可编程光交叉连接器
公开(公告)号：US06614952B2
公开(公告)日：2003-09-02
申请号：US10027581
申请日：2001-10-19
申请人： Ken A. Nishimura
发明人： Ken A. Nishimura
IPC分类号： G02B626
CPC分类号： G02B6/3596 , G02B6/3538 , G02B6/3546 , G02B6/3572 , G02B6/3584
摘要： A programmable optical waveguide cross-connection array including a supporting substrate, one or more first waveguides fixed to the supporting substrate, one or more second waveguides fixed to the supporting substrate and disposed to form one or more intersections with the first waveguides, and an optical boundary or cavity in at least one switched intersection; whereby the optical signal entering the switched intersection from a first waveguide is redirected by the cavity to exit the switched intersection by way of the second waveguide. The device embodies a network of intersecting waveguides in which cross-connections between selected waveguide pairs can be permanently programmed at low cost. The programmable optical substrate provides customized local connectivity between a plurality of optical components and may be efficiently and reliably fabricated in large quantities.
摘要翻译：一种可编程光波导交叉连接阵列，包括支撑衬底，固定到支撑衬底的一个或多个第一波导，固定到支撑衬底并设置成与第一波导形成一个或多个交点的一个或多个第二波导，以及光学至少一个交换路口的边界或空腔; 由此从第一波导进入开关交叉路口的光信号由空腔重定向，以通过第二波导离开交换交叉点。该装置体现了相交波导网络，其中选择的波导对之间的交叉连接可以以低成本被永久编程。可编程光学基板在多个光学部件之间提供定制的本地连接，并且可以大量有效且可靠地制造。

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