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    • 26. 发明授权
    • Flow pattern transition pipe
    • 流动式过渡管
    • US08833397B2
    • 2014-09-16
    • US13527848
    • 2012-06-20
    • Lishun HuWei Chen
    • Lishun HuWei Chen
    • F15D1/04
    • B65G53/52
    • A flow pattern transition pipe for use in a pneumatic conveyance system is provided. The flow pattern transition pipe comprises a first expansion pipe section gradually increasing in inner diameter in an axial direction, a second shrink pipe section following the first section from a maximum inner diameter end of the first section and gradually reducing in inner diameter in an axial direction away from the first section, and a third pipe section following the second section from a minimum inner diameter end of the second section, with a substantially identical inner diameter smaller than a minimum inner diameter of the first section. An axial length of the first section is from about three to about five times of the axial length of the second section.
    • 提供了一种用于气动输送系统的流动型过渡管。 流动型过渡管包括沿轴向内径逐渐增加的第一膨胀管段,从第一部分的最大内径端跟随第一部分的第二收缩管部分,并且沿轴向方向逐渐减小内径 以及与第二部分的最小内径端部相邻的第二部分的第三管部分,其内径基本相同于第一部分的最小内径。 第一部分的轴向长度为第二部分的轴向长度的约三到五倍。
    • 27. 发明授权
    • Tunable optical demultiplexer
    • 可调光解复用器
    • US08818194B2
    • 2014-08-26
    • US12495343
    • 2009-06-30
    • Brent E. LittleWei Chen
    • Brent E. LittleWei Chen
    • H04J14/02G02B6/26
    • H04J14/02
    • A tunable optical demultiplexer includes a control circuit and one or more heaters thermally coupled to waveguides of an optical demux. The control circuit is in signal communication with the one or more heaters and includes a processor coupled to a memory. The control circuit is configured to receive an optical channel group (OCG) identification signal and adjust the power delivered to the heaters in response to the OCG identification signal and based on parameter values stored in the memory. The optical demux outputs a plurality of optical signals at a corresponding one of a plurality of outputs. The transmission characteristics of the optical demux are varied depending on the amount of power delivered to the heaters. The varying of the transmission characteristics of the optical demux adjusts the spectral shifting of the plurality of wavelengths output by the optical demux.
    • 可调谐光解复用器包括控制电路和热耦合到光学解复用器的波导的一个或多个加热器。 控制电路与一个或多个加热器信号通信,并且包括耦合到存储器的处理器。 控制电路被配置为接收光通道组(OCG)识别信号,并且响应于OCG识别信号并且基于存储在存储器中的参数值来调节传送到加热器的功率。 光解复用器在多个输出中相应的一个输出端输出多个光信号。 光学解复用器的传输特性根据传送到加热器的功率量而变化。 光学解复用器的传输特性的变化调节由光学解复用器输出的多个波长的光谱偏移。
    • 29. 发明授权
    • Management techniques for video playback
    • 视频播放管理技术
    • US08766902B2
    • 2014-07-01
    • US12145348
    • 2008-06-24
    • Ulrich T. BarnhoeferWei H. YaoWei Chen
    • Ulrich T. BarnhoeferWei H. YaoWei Chen
    • G09G3/36
    • H04N5/58G06T5/008G09G3/3406G09G3/3611G09G2320/0247G09G2320/0271G09G2320/0646G09G2320/066G09G2330/021G09G2360/16H04N21/44008H04N21/4402
    • Embodiments of a system that includes one or more integrated circuits are described. During operation, the system may determine an intensity setting of the light source based on at least a portion of a video image, such as the portion of the transformed video image that includes spatially varying visual information in the video image. Moreover, the system may modify the video image so that a product of the intensity setting and a transmittance associated with the modified video image approximately equals a product of a previous intensity setting and a transmittance associated with the video image. For example, the modification may include scaling brightness values in the transformed video image. Next, the system may identify a region in the video image in which the scaling of the brightness values results in a visual artifact associated with reduced contrast. For example, the region may include a bright region surrounded by a darker region. Then, the system may reduce the scaling of the brightness values in the region to, at least partially, restore the contrast, thereby reducing the visual artifact. Additionally, the system may spatially filter the brightness values in the video image to reduce a spatial discontinuity between the brightness values of pixels within the region and the brightness values in a remainder of the video image.
    • 描述包括一个或多个集成电路的系统的实施例。 在操作期间,系统可以基于视频图像的至少一部分来确定光源的强度设置,诸如包括视频图像中的空间变化的视觉信息的经变换的视频图像的部分。 此外,系统可以修改视频图像,使得强度设置和与修改的视频图像相关联的透射率的乘积近似等于先前的强度设置和与视频图像相关联的透射率的乘积。 例如,修改可以包括缩放经变换的视频图像中的亮度值。 接下来,系统可以识别视频图像中的亮度值的缩放导致与降低的对比度相关联的视觉伪影的区域。 例如,该区域可以包括被较暗区域包围的亮区域。 然后,该系统可以减少该区域中的亮度值的缩放,至少部分恢复对比度,由此减少视觉伪像。 另外,该系统可以对视频图像中的亮度值进行空间滤波,以减少该区域内像素的亮度值与视频图像的其余部分中的亮度值之间的空间不连续性。
    • 30. 发明授权
    • Processes for producing light olefins
    • 生产轻质烯烃的方法
    • US08692045B2
    • 2014-04-08
    • US13298137
    • 2011-11-16
    • Guozhen QiSiqing ZhongWei ChenZhinan Yu
    • Guozhen QiSiqing ZhongWei ChenZhinan Yu
    • C07C1/24
    • B01J8/1836B01J8/005C07C1/20C07C2529/85Y02P20/584Y02P30/42C07C11/04C07C11/06
    • A process for producing light olefins is provided. A feedstock enters a pre-reaction zone and contacts a catalyst comprising at least one silicon-aluminophosphate molecular sieve and produces a gas-phase stream; the gas-phase stream and the catalyst enter at least one riser, and the gas-phase stream and the catalyst pass from an outlet of the at least one riser and enter a gas-solid rapid separation zone; the separated gas-phase stream enters a separation section; a first portion of the separated catalyst returns to the pre-reaction zone, and a second portion is regenerated in a regenerator; wherein an inlet of the at least one riser extends into the pre-reaction zone, about 60% to about 90% of the height of the at least one riser passes through a heat exchange zone, and the outlet extends into the gas-solid rapid separation zone.
    • 提供了一种生产轻质烯烃的方法。 原料进入预反应区并与包含至少一个硅铝磷酸盐分子筛的催化剂接触并产生气相流; 所述气相流和所述催化剂进入至少一个提升管,并且所述气相物流和所述催化剂从所述至少一个提升管的出口通过并进入气固快速分离区; 分离的气相流进入分离段; 分离的催化剂的第一部分返回到预反应区,并且第二部分在再生器中再生; 其中所述至少一个提升管的入口延伸到所述预反应区域中,所述至少一个提升管的高度的大约60%至大约90%通过热交换区域,并且所述出口延伸到所述气体 - 固体快速 分离区。