专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08155488B2 Wavelength locking and power control systems for multi-channel photonic integrated circuits (PICs) 有权
标题翻译：用于多通道光子集成电路（PIC）的波长锁定和功率控制系统
公开(公告)号：US08155488B2
公开(公告)日：2012-04-10
申请号：US12507763
申请日：2009-07-22
申请人： Alan C. Nilsson , Robert W. Smith , Yishai Kagan , Paul N. Freeman
发明人： Alan C. Nilsson , Robert W. Smith , Yishai Kagan , Paul N. Freeman
IPC分类号： G02B6/12
CPC分类号： H01S5/0687 , B82Y20/00 , G02B6/12004 , G02B6/12019 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , H01S5/0085 , H01S5/024 , H01S5/02415 , H01S5/02453 , H01S5/02461 , H01S5/02476 , H01S5/026 , H01S5/0261 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/0425 , H01S5/0612 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/2214 , H01S5/2224 , H01S5/227 , H01S5/2272 , H01S5/3408 , H01S5/34306 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/25 , H04B10/2914 , H04B10/50 , H04B10/572 , H04J14/02
摘要： A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating the output channel signal level of each signal channel and as a modulator for channel wavelength tagging or labeling to provide for wavelength locking the modulated sources. The power regulating function is also employed to control the channel signal power outputs of each channel to be uniform across the channel signal array. All of these functions are carried out by a feedback loop utilizing digital signal processing.
摘要翻译：在单片多通道TxPIC的每个信号通道中提供透射有源通道元件，其中每个通道还包括调制源。有源通道元件既用作监视和调节每个信号通道的输出通道信号电平的功率控制元件，也用作用于通道波长标签或标签的调制器，以提供波长锁定调制源。功率调节功能也用于控制每个通道的通道信号功率输出在通道信号阵列上是均匀的。所有这些功能都通过利用数字信号处理的反馈回路进行。

2. 发明授权

US07680364B2 Wavelength locking and power control systems for multi-channel photonic integrated circuits (PICS) 有权
标题翻译：用于多通道光子集成电路（PICS）的波长锁定和功率控制系统
公开(公告)号：US07680364B2
公开(公告)日：2010-03-16
申请号：US11427624
申请日：2006-06-29
申请人： Alan C. Nilsson , Robert W. Smith , Yishai Kagan , Paul N. Freeman
发明人： Alan C. Nilsson , Robert W. Smith , Yishai Kagan , Paul N. Freeman
IPC分类号： G02B6/12
CPC分类号： H01S5/0687 , B82Y20/00 , G02B6/12004 , G02B6/12019 , G02B6/12023 , G02B6/12026 , G02B6/12028 , G02B6/12033 , G02F1/01725 , G02F2001/0175 , G02F2001/01758 , H01S5/0085 , H01S5/024 , H01S5/02415 , H01S5/02453 , H01S5/02461 , H01S5/02476 , H01S5/026 , H01S5/0261 , H01S5/0264 , H01S5/0265 , H01S5/0268 , H01S5/0425 , H01S5/0612 , H01S5/06256 , H01S5/06258 , H01S5/0683 , H01S5/12 , H01S5/1228 , H01S5/2077 , H01S5/22 , H01S5/2214 , H01S5/2224 , H01S5/227 , H01S5/2272 , H01S5/3408 , H01S5/34306 , H01S5/4025 , H01S5/4031 , H01S5/4087 , H01S5/50 , H04B10/25 , H04B10/2914 , H04B10/50 , H04B10/572 , H04J14/02
摘要： A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating the output channel signal level of each signal channel and as a modulator for channel wavelength tagging or labeling to provide for wavelength locking the modulated sources. The power regulating function is also employed to control the channel signal power outputs of each channel to be uniform across the channel signal array. All of these functions are carried out by a feedback loop utilizing digital signal processing.
摘要翻译：在单片多通道TxPIC的每个信号通道中提供透射有源通道元件，其中每个通道还包括调制源。有源通道元件既用作监视和调节每个信号通道的输出通道信号电平的功率控制元件，也用作用于通道波长标签或标签的调制器，以提供波长锁定调制源。功率调节功能也用于控制每个通道的通道信号功率输出在通道信号阵列上是均匀的。所有这些功能都通过利用数字信号处理的反馈回路进行。

3. 发明授权

US06549311B1 Wave division multiplexing channel telemetry by phase modulation 有权
标题翻译：波分复用通道相位调制遥测
公开(公告)号：US06549311B1
公开(公告)日：2003-04-15
申请号：US09353716
申请日：1999-07-14
申请人： Basil Wahid Hakki , Robert W. Smith
发明人： Basil Wahid Hakki , Robert W. Smith
IPC分类号： H04B1004
CPC分类号： H04B10/0775 , H04B2210/074
摘要： A wave division multiplexing system in which low frequency intensity modulation of the optical channels is avoided in order to reduce or substantially prevent inter-channel cross-talk of low frequency telemetry signals by phase modulating the low frequency telemetry signal so as to recover the transmitted signal at the receiver. The system includes multiple transmitters and receivers. Each transmitter includes an optical source, such as a laser, a radio frequency generator having a low frequency telemetry signal impressed thereon, and an optical phase modulator. The phase modulated low frequency telemetry signal generated by each transmitter is combined using a multiplexer before being amplified and transmitted through a single optical fiber. A demultiplexer receives the transmitted signal and separates it into respective optical channels based on the particular frequency of each transmitter. Respective signals for each optical channel are transmitted to an associated receiver. Each receiver includes a splitter for tapping off a portion of power into a first portion and a second portion. A data recovery device reestablishes data information from the first portion of power, while an interferometer and detector are used to recover the low frequency telemetry information from the second portion of power.
摘要翻译：一种波分复用系统，其中避免了光信道的低频强度调制，以便通过对低频遥测信号进行相位调制来减少或基本上防止低频遥测信号的信道间串扰，从而恢复发射信号在接收器。该系统包括多个发射机和接收机。每个发射器包括诸如激光器的光源，具有施加在其上的低频遥测信号的射频发生器和光相位调制器。每个发射机产生的相位调制低频遥测信号在被放大并通过单根光纤传输之前，使用多路复用器进行组合。解复用器基于每个发射机的特定频率接收所发送的信号并将其分离成相应的光信道。每个光信道的相应信号被发送到相关联的接收机。每个接收器包括用于将功率的一部分分解成第一部分和第二部分的分离器。数据恢复装置从功率的第一部分重新建立数据信息，而使用干涉仪和检测器来从第二部分功率恢复低频遥测信息。

4. 发明授权

US06501867B2 Chirp compensated Mach-Zehnder electro-optic modulator 有权
标题翻译：啁啾补偿马赫 - 曾德尔电光调制器
公开(公告)号：US06501867B2
公开(公告)日：2002-12-31
申请号：US09836599
申请日：2001-04-17
申请人： John VanAtta Gates, II , Douglas M. Gill , Robert W. Smith
发明人： John VanAtta Gates, II , Douglas M. Gill , Robert W. Smith
IPC分类号： G02F1035
CPC分类号： G02F1/2255 , G02F1/0316
摘要： A Mach-Zehnder electro-optic modulator is formed that exhibits significantly reduced chirp by utilizing an RF electrode that covers a first waveguide arm in a first region of the modulator and covers the second, remaining waveguide arm in a third region of the modulator (with a second, intermediate region used as a transition area for the electrode). Moving the electrode from one waveguide to the other allows for the chirp created in the third region to essentially “null out” the chirp that accumulated along the first region. Modulation of the optical signal is maintained in the presence of the “electrode switching” by inverting the domain of the optical substrate material in the third region of the modulator.
摘要翻译：通过利用覆盖调制器的第一区域中的第一波导臂的RF电极并且在调制器的第三区域（覆盖调制器的第三区域中覆盖第二个剩余的波导臂），形成马赫 - 曾德尔电光调制器（具有显着降低的啁啾）用作电极的过渡区域的第二中间区域）。将电极从一个波导移动到另一个波导允许在第三区域中产生的啁啾基本上“消除”沿着第一区域累积的啁啾。在存在“电极切换”的情况下，通过在调制器的第三区域中反转光学基片材料的区域来维持光学信号的调制。

5. 发明授权

US06307287B1 High-efficiency moving-magnet loudspeaker 有权
标题翻译：高效移动磁体扬声器
公开(公告)号：US06307287B1
公开(公告)日：2001-10-23
申请号：US09521368
申请日：2000-03-08
申请人： Steven L. Garrett , Robert M. Keolian , Robert W. Smith
发明人： Steven L. Garrett , Robert M. Keolian , Robert W. Smith
IPC分类号： F03G700
CPC分类号： F03G7/002 , F02G1/0435 , F02G2243/54 , F25B9/145 , F25B2309/1404 , G10K9/13 , G10K9/18 , H02K33/02
摘要： A thermoacoustic driver incorporates a linear electrodynamic motor having electrical terminals and a moving part, a driver suspension housing, a piston, and a stiffness-enhancing device for raising the mechanical resonance frequency of the electrodynamic motor without reducing the piston stroke. The stiffness enhancement is accomplished by the use of specially optimized suspension spring structures and/or by attaching one or more electrical inductors to the electrical terminals of the driver. The stiffness enhancement using mechanical springs incorporates one or more starfish structures extending between the driver suspension housing and the piston and rigidly clamped to both. The starfish structures comprise radially extending legs, which are leaf springs or beams of varying width. The shape of the beams and the shape of the overall spring structure are optimized to enhance flexural or torsional stiffness and relieve arc tension within the constraints of cost-effectiveness. In one version, two modified triangular (trapezoidal) cantilever beams are connected through a straight middle section and form a bow-tie shaped beam.
摘要翻译：热声驱动器包括具有电端子和运动部件的线性电动马达，驱动器悬架壳体，活塞和用于提高电动马达的机械共振频率而不减小活塞冲程的刚度增强装置。通过使用特别优化的悬架弹簧结构和/或通过将一个或多个电感器附接到驱动器的电端子来实现刚度增强。使用机械弹簧的刚度增强结合了一个或多个在驱动器悬挂壳体和活塞之间延伸并且刚性地夹紧到两者的海星结构。海星结构包括径向延伸的腿，其是板簧或不同宽度的梁。优化梁的形状和整体弹簧结构的形状，以增强弯曲或扭转刚度，并在成本效益的限制内缓解电弧张力。在一个版本中，两个改进的三角形（梯形）悬臂梁通过直的中间部分连接并形成弓形梁。

6. 发明授权

US5465272A Data transmitter baseline wander correction circuit 失效
标题翻译：数据发射机基线漂移校正电路
公开(公告)号：US5465272A
公开(公告)日：1995-11-07
申请号：US225953
申请日：1994-04-08
申请人： Robert W. Smith
发明人： Robert W. Smith
IPC分类号： H04L25/06 , H04L27/04
CPC分类号： H04L25/061 , H04L25/066
摘要： In a terminal coupled to a computer network, a circuit for compensating for the baseline wander of received digital signals. The terminal is AC coupled to the computer network by a coupling transformer. The received digital signal is summed with a correction signal. The resulting summed signal is input to a comparator. This comparator compares the summed signal to a predetermined baseline level. Thus, the output signal from the comparator is fixed at the baseline level. The correction signal is the difference between the summed signal and the output signal from the comparator. The correction signal is filtered and amplified before being fed back to the comparator.
摘要翻译：在耦合到计算机网络的终端中，用于补偿接收的数字信号的基线漂移的电路。终端通过耦合变压器交流耦合到计算机网络。接收到的数字信号与校正信号相加。所得到的求和信号被输入到比较器。该比较器将求和的信号与预定的基准电平进行比较。因此，比较器的输出信号固定在基准电平。校正信号是求和信号与比较器的输出信号之间的差值。校正信号在被反馈到比较器之前被滤波和放大。

7. 再颁专利

USRE34962E Annular combustor with tangential cooling air injection 失效
标题翻译：环形燃烧器采用切向冷却空气注入
公开(公告)号：USRE34962E
公开(公告)日：1995-06-13
申请号：US890916
申请日：1992-05-29
申请人： Jack R. Shekleton , Colin Rodgers , John P. Archibald , Robert W. Smith
发明人： Jack R. Shekleton , Colin Rodgers , John P. Archibald , Robert W. Smith
IPC分类号： F02C3/08 , F02C7/18 , F23R3/04 , F23R3/28 , F23R3/52
CPC分类号： F23R3/28 , F23R3/04 , F05B2220/50 , F05B2250/322
摘要： The combustion dynamics and efficiency of gas turbine having an annular combustor 26 provided with fuel injection nozzles 50 that inject fuel generally tangentially is improved by providing the walls 32, 34, 39 of the combustion 26 with cooling air film injectors 70, 86; 72, 88; 74, 90 at substantially equally angularly spaced locations about each such wall and which are oriented to generally tangentially inject a film-like air stream on the associated wall 32, 34, 39.

8. 发明授权

US5163287A Stored energy combustor with fuel injector containing igniter means for accommodating thermal expansion 失效
标题翻译：具有燃料喷射器的储存能量燃烧室包括用于调节热膨胀的点火器装置
公开(公告)号：US5163287A
公开(公告)日：1992-11-17
申请号：US455244
申请日：1989-12-22
申请人： Jack R. Shekleton , Robert W. Smith
发明人： Jack R. Shekleton , Robert W. Smith
IPC分类号： F02C7/264 , F23R3/14 , F23R3/28
CPC分类号： F23R3/28 , F02C7/264 , F23R3/14
摘要： In order to optimize ignition capabilities, while at the same time enhancing the life span of an igniter, a stored energy combustor (10) has an igniter (34) disposed within a fuel injector (26). The fuel injector (26) is disposed in a tubular extension (16) leading to a combustion chamber (20) and has a discharge end (28) communicating with a point of entry into the combustion chamber (20). An oxidant inlet port (24) is provided upstream of the combustion chamber (20) for directing oxidant into the combustion chamber (20). The oxidant inlet port (24) directs oxidant through the tubular extension (16) leading to the combustion chamber (20) in surrounding relation to the fuel injector (26). With this arrangement, the igniter (34) is disposed within the fuel injector (26) along a longitudinal axis (22) of the stored energy combustor (10).
摘要翻译：为了优化点火能力，在同时增加点火器的寿命的同时，储能燃烧器（10）具有设置在燃料喷射器（26）内的点火器（34）。燃料喷射器（26）设置在通向燃烧室（20）的管状延伸部（16）中并且具有与进入燃烧室（20）的入口连通的排出端（28）。氧化剂入口（24）设置在燃烧室（20）的上游，用于将氧化剂引导到燃烧室（20）中。氧化剂入口（24）引导氧化剂通过与燃料喷射器（26）相关的通向燃烧室（20）的管状延伸部（16）。利用这种布置，点火器（34）沿着存储的能量燃烧器（10）的纵向轴线（22）设置在燃料喷射器（26）内。

9. 发明授权

US5136838A Stored energy, wide energy range turbine starting system 失效
标题翻译：存储能量，能量范围广泛的涡轮启动系统
公开(公告)号：US5136838A
公开(公告)日：1992-08-11
申请号：US447444
申请日：1989-12-07
申请人： Jack R. Shekleton , Robert W. Smith
发明人： Jack R. Shekleton , Robert W. Smith
IPC分类号： B64D41/00 , F02C7/277 , F02C7/32
CPC分类号： F02C7/32 , B64D41/00 , F02C7/277 , F05D2220/50
摘要： Difficulties with starting reliability and/or combustion stability in hot gas generating systems are avoided in a construction including a storage vessel (36) for storing an oxidant; a fuel supply (22) and a combustion chamber (26) having an outlet (30) for hot gas. A fuel injection nozzle (28) provides fuel from the supply (22) to the combustion chamber (26) while an oxidant duct (44) connects the vessel (36) to the combustion chamber (26). A choked orifice (46) is disposed in the duct (44) just upstream of the combustion chamber (26) and a bypass duct (50) interconnects the combustion chamber outlet (30) and the oxidant duct (44) between the choked orifice (46) and the combustion chamber (26). A selectively operable valve (53) is disposed in the bypass duct (50) and a pressure regulator (42) is disposed in the oxidant duct (44) for selectively controlling the pressure of oxidant applied to the choked orifice (46).
摘要翻译：在包括用于储存氧化剂的储存容器（36）的结构中，避免了在热气体发生系统中启动可靠性和/或燃烧稳定性的困难; 燃料供应装置（22）和具有用于热气体的出口（30）的燃烧室（26）。燃料喷射喷嘴（28）将燃料从供应源（22）提供给燃烧室（26），而氧化剂管道（44）将容器（36）连接到燃烧室（26）。扼流孔（46）刚刚在燃烧室（26）的上游设置在管道（44）中，并且旁路管道（50）将燃烧室出口（30）和氧化剂管道（44） 46）和燃烧室（26）。选择性操作的阀（53）设置在旁路管道（50）中，并且压力调节器（42）设置在氧化剂管道（44）中，用于选择性地控制施加到扼流孔（46）的氧化剂的压力。

10. 发明授权

US5076061A Stored energy combustor 失效
标题翻译：储能燃烧器
公开(公告)号：US5076061A
公开(公告)日：1991-12-31
申请号：US451145
申请日：1989-12-15
申请人： Jack R. Shekleton , Robert W. Smith
发明人： Jack R. Shekleton , Robert W. Smith
IPC分类号： F23C3/00 , F23C7/00 , F23C9/00 , F23R3/02 , F23R3/42
CPC分类号： F23R3/42 , F23C3/00 , F23C7/004 , F23C9/006 , F23R3/02
摘要： In order to significantly reduce the carbon produced in a combustor, and thus reduce or eliminate carbon buildup on a combustor wall (14), a stored energy combustor (10) has a fuel injector (28) in a tubular extension (16) of a vessel (12) leading to a combustion chamber (20). The fuel injector (28) has a discharge end (60) upstream of a plane defining a point of entry (32) into the combustion chamber (20) for directing an annulus of fuel (26) toward the combustion chamber (20), and an oxidant inlet port (24) is also provided upstream of the combustion chamber (20) for directing oxidant into the combustion chamber (20) through the tubular extension (16) in surrounding relation to the fuel injector (28) which is concentric with the longitudinal axis (22) of the vessel (12). In addition, the stored energy combustor (10) includes an air swirler (34) upstream of the combustion chamber (20) and the discharge end ( 60) of the fuel injector (28) for swirling oxidant in the tubular extension (16) which directs oxidant in a swirling annulus (46) into the combustion chamber (20) outwardly of the annulus of fuel (26).
摘要翻译：为了显着地减少在燃烧器中产生的碳，并且因此减少或消除燃烧器壁（14）上的积碳，储能燃烧器（10）具有在管状延伸部（16）中的燃料喷射器（28）通向燃烧室（20）的容器（12）。燃料喷射器（28）具有在限定进入燃烧室（20）的进入点（32）的平面的上游的排放端（60），用于将燃料（26）的环空导向燃烧室（20），以及氧化剂入口（24）也设置在燃烧室（20）的上游，用于通过管状延伸部（16）将氧化剂引导到与燃料喷射器（28）相关的燃料喷射器容器（12）的纵轴（22）。另外，存储能量燃烧器（10）包括在燃烧室（20）上游的空气旋流器（34）和用于在管状延伸部（16）中旋转氧化剂的燃料喷射器（28）的排放端（60），将涡旋环（46）中的氧化剂引导到燃料（26）的环空外部的燃烧室（20）中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式