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    • 62. 发明申请
    • LEAD-FREE X-RAY SHIELDING RUBBER COMPOSITE
    • 无铅X射线屏蔽橡胶复合材料
    • US20120012793A1
    • 2012-01-19
    • US12999424
    • 2009-06-23
    • Li LiuLiqun ZhangShui HuShipeng WenZongyuan Wei
    • Li LiuLiqun ZhangShui HuShipeng WenZongyuan Wei
    • G21F1/08
    • G21F1/02C08K3/013C08K3/10C08K5/098C08K5/14C08K5/548C08L21/00
    • An overall lead-free X-ray shielding rubber compound material. The overall lead-free X-ray shielding rubber compound material uses rare earth mixture to replace lead, simultaneously adds metal tin and compounds thereof, metal tungsten and compounds thereof and bismuth and compounds thereof as shielding main materials and is further compounded with rubber to prepare the compound material which can realize the overall shielding and the complete lead-free property within the energy range of 40-170 kVp. When rare earth and bismuth materials are used, the way of combined use of two metal element inorganic compounds and unsaturated organic complexes is adopted, and the in-situ reaction and the compounding with a polymer matrix are carried out, thereby leading the shielding element disperse phase to form nano-micro-level dispersed particles.
    • 整体无铅X射线屏蔽橡胶复合材料。 整体无铅X射线屏蔽橡胶复合材料采用稀土混合物代替铅,同时加入金属锡及其化合物,金属钨及其化合物,铋及其化合物作为屏蔽主要材料,并进一步与橡胶配混以制备 可实现整体屏蔽的复合材料和在40-170 kVp的能量范围内的完全无铅性能。 当使用稀土和铋材料时,采用两种金属元素无机化合物和不饱和有机配合物的组合使用方式,进行原位反应和与聚合物基体的配合,从而使屏蔽元件分散 相形成纳米级微分级粒子。
    • 63. 发明申请
    • REDUCING POWER CONSUMPTION BY TAKING ADVANTAGE OF SUPERIOR IN-CIRCUIT DUPLEXER PERFORMANCE
    • 通过获得超级电路双工器性能优势降低功耗
    • US20110299434A1
    • 2011-12-08
    • US12794195
    • 2010-06-04
    • Prasad S. GudemSoon-Seng LauLi Liu
    • Prasad S. GudemSoon-Seng LauLi Liu
    • H04B7/005H04B1/44
    • H04B1/525H04B1/109H04W52/0238Y02D70/1242Y02D70/164Y02D70/40
    • Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain amount, and may only be guaranteed to have a receive band rejection of another amount, the actual transmit band rejection and the actual receive band rejection of a particular instance of the duplexer may be better than specified. Rather than consuming excess power in the receiver and/or transmitter in order to meet performance requirements assuming the duplexer only performs as well as specified, the duplexer's in-circuit performance is measured as part of a transmitter-to-receiver isolation determination. Transmitter and/or receiver power settings are reduced where possible to take advantage of the measured better-than-specified in-circuit duplexer performance, while still meeting transceiver performance requirements. Power settings are not changed during normal transmit and receive mode operation.
    • 虽然全双工收发器电路中的双工器可能只能由双工器制造商保证从其TX端口到其一定数量的RX端口的发射波段抑制,并且只能保证具有另一个的接收频带抑制 数量,双工器的特定实例的实际发射频带抑制和实际接收频带抑制可能优于指定的。 假设双工器仅执行指定,而不是在接收机和/或发射机中消耗多余的功率,以满足性能要求,则双工器的在线性能是作为发射机到接收机隔离确定的一部分进行测量的。 发射机和/或接收机功率设置在可能的情况下可以减少,以便在仍然满足收发器性能要求的同时利用测得的优于指定的在线双工器性能。 在正常的发送和接收模式操作期间,电源设置不会改变。
    • 64. 发明授权
    • Defective pixel management for flat panel displays
    • 平板显示器的缺陷像素管理
    • US08044944B2
    • 2011-10-25
    • US11187774
    • 2005-07-22
    • Li Liu
    • Li Liu
    • G06F3/038
    • G09G3/20G09G3/2003G09G5/02G09G2330/10
    • Systems and methods for identifying defective pixels and adjusting an input to control display of the defective pixels may improve the quality of the image viewed on a flat panel display including one or more defective pixels. The screen position of each defective pixel is identified and stored. Adjustment information is also stored for each defective pixel. The adjustment information is used to modify a stored color value for each defective pixel or to disable one or more color components of each defective pixel prior to displaying an image on a flat panel display device including the defective pixels.
    • 用于识别缺陷像素并调整输入以控制缺陷像素的显示的系统和方法可以提高在包括一个或多个缺陷像素的平板显示器上观看的图像的质量。 识别并存储每个缺陷像素的屏幕位置。 还为每个缺陷像素存储调整信息。 调整信息用于修改每个缺陷像素的存储颜色值,或者在包括缺陷像素的平板显示设备上显示图像之前禁用每个缺陷像素的一个或多个颜色分量。
    • 66. 发明授权
    • Sub-pixel array optical sensor
    • 子像素阵列光学传感器
    • US08035711B2
    • 2011-10-11
    • US12125466
    • 2008-05-22
    • Li LiuJeffrey Jon ZarnowskiKetan Vrajlal KariaThomas PoonnenMichael Eugene Joyner
    • Li LiuJeffrey Jon ZarnowskiKetan Vrajlal KariaThomas PoonnenMichael Eugene Joyner
    • H04N9/083
    • H04N9/07H04N9/045
    • Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.
    • 通过使用子像素阵列来捕获不同曝光的光并且在单个帧中为图像生成彩色像素输出来公开改善拍摄图像的动态范围。 每个子像素阵列可以包括多个子像素。 构成子像素阵列的子像素可以包括红色(R)子像素,绿色(G)子像素,蓝色(B)子像素,并且在一些实施例中可以包括清晰的子像素。 具有清晰子像素的子像素阵列有效地具有更高的曝光水平,并且能够比没有清晰子像素的子像素阵列更好地捕获低光场景(对于暗区域)。 每个子像素阵列可以产生作为子像素阵列中的子像素的输出的组合的彩色像素输出。 子像素阵列中的每个子像素可以具有相同的曝光时间,或者在一些实施例中,子像素阵列内的各个子像素可以具有不同的曝光时间,以提高整个动态范围。
    • 67. 发明授权
    • Active circuits with load linearization
    • 负载线性化的有源电路
    • US08035447B2
    • 2011-10-11
    • US11842712
    • 2007-08-21
    • Li LiuPrasad S. Gudem
    • Li LiuPrasad S. Gudem
    • H03F1/26
    • H04B1/109H03F1/223H03F1/3205H03F1/3211H03F3/45179H03F3/45188H03F2200/453H03F2203/45306H03F2203/45352H03F2203/45386H03F2203/45394H04B1/525
    • Active circuits with active loads linearized via distortion cancellation are described. In one design, an apparatus includes a first stage and a load stage. For an amplifier, the first stage amplifies an input signal and provides an output signal having a larger signal level. For a mixer, the first stage mixes an input signal with an LO signal and provides an output signal. The load stage provides an active load for the first stage and is linearized by canceling distortion generated by the active load. In one design, the load stage includes a first transistor that provides the active load and generates distortion due to its nonlinearity. The load stage further includes at least one transistor that generates a replica of the distortion from the first transistor. The distortion replica is used to cancel the distortion from the first transistor. The first stage may also be linearized with distortion cancellation.
    • 描述了通过失真消除线性化的有源负载的有源电路。 在一种设计中,装置包括第一级和负载级。 对于放大器,第一级放大输入信号并提供具有较大信号电平的输出信号。 对于混频器,第一级将输入信号与LO信号混频并提供输出信号。 负载级为第一级提供有效负载,并通过消除由有效负载产生的失真来线性化。 在一种设计中,负载级包括提供有源负载并由于其非线性而产生失真的第一晶体管。 负载级还包括至少一个晶体管,其产生来自第一晶体管的失真的复制品。 失真复制品用于消除第一晶体管的失真。 第一级也可以通过失真消除线性化。