会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 63. 发明申请
    • METHOD AND APPARATUS FOR LED DRIVING AND DIMMING, AND ILLUMINATION SYSTEM
    • LED驱动和调光及照明系统的方法与装置
    • WO2012028554A1
    • 2012-03-08
    • PCT/EP2011/064744
    • 2011-08-26
    • OSRAM AGHU, YangWU, Li Bo
    • HU, YangWU, Li Bo
    • H05B33/08
    • H05B37/02H05B33/0818H05B33/0851
    • The present invention relates to method and apparatus for driving an LED, and method and apparatus tor dimming an LED, an illumination system including an apparatus for driving an LED, and an illumination, system including an apparatus for dimming an LED. The method for driving an LED includes determining duty cycle of pulse sequence for controlling the power switch according to present current and predetermined operating current of the LED; generating the pulse sequence according to the duty cycle and according to randomized period sequence and/or randomized pulse position sequence; and controlling switching operation of the power switch by the pulse sequence, so as to drive the LED. Wherein, the LED is connected to power switch. By applying the present; invention, electromagnetic interference may be decreased, and the flickering of the LED may be reduced.
    • 本发明涉及用于驱动LED的方法和装置,以及对LED调光的方法和装置,包括用于驱动LED的装置的照明系统,以及包括用于使LED变暗的装置的照明系统。 用于驱动LED的方法包括根据当前的LED和预定的工作电流确定用于控制电源开关的脉冲序列的占空比; 根据占空比根据随机期间序列和/或随机脉冲位置序列产生脉冲序列; 并通过脉冲序列控制电源开关的开关动作,驱动LED。 其中LED连接电源开关。 通过应用现在; 发明中,电磁干扰可能降低,LED的闪烁可能降低。
    • 66. 发明申请
    • A METHOD AND TRANSMITTER NODE FOR TRANSMITTING DM-RS PATTERN
    • 用于发送DM-RS模式的方法和发射机节点
    • WO2011087417A1
    • 2011-07-21
    • PCT/SE2010/050725
    • 2010-06-24
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)HU, YangASTELY, DavidHAMMARWALL, DavidJÖNGREN, GeorgeSONG, XinghuaWANG, Jianfeng
    • HU, YangASTELY, DavidHAMMARWALL, DavidJÖNGREN, GeorgeSONG, XinghuaWANG, Jianfeng
    • H04W72/06
    • H04B7/0452H04B7/0689H04L5/0023H04L5/0026H04L5/0048
    • The present invention relates to a transmitter node for transmitting a demodulation reference signal pattern in a resource block to a receiver node (12) using more than two transmission layers over a plurality of transmit antennas in a radio communications network. The transmitter node (10) comprises a mapping circuit (1301) configured to map a plurality of codewords to the more than two transmission layers. Furthermore, the transmitter comprises an additional mapping circuit (1302) configured to map each of the more than two transmission layers to a respective demodulation reference signal port according to a fixed pattern based on a transmission rank. Each of the demodulation reference signal ports is arranged to add a demodulation reference signal pattern to the resource block and the demodulation reference signal ports are associated to two code division multiplexing groups according to an association pattern. The transmission layers of each the two code division multiplexing groups are code division multiplexed and the transmission layers of different code division multiplexing groups are frequency division multiplexed In addition, the transmitter node (10) comprises a precoding circuit (1303) configured to precode each codeword and demodulation reference signal pattern, carried over respective transmission layer, and a transmitting circuit (1304) comprising the plurality of transmit antennas and configured to transmit the precoded demodulation reference signal pattern in the resource block to the receiver node (12).
    • 本发明涉及一种发射机节点,用于在无线电通信网络中的多个发射天线上使用两个以上的传输层,将资源块中的解调参考信号模式发射到接收机节点(12)。 发射机节点(10)包括配置成将多个码字映射到多于两个传输层的映射电路(1301)。 此外,发射机包括附加映射电路(1302),被配置为根据基于传输秩的固定模式将多于两个传输层中的每一个映射到相应的解调参考信号端口。 每个解调参考信号端口被布置成将解调参考信号模式添加到资源块,并且解调参考信号端口根据关联模式与两个码分复用组相关联。 两个码分复用组中的每一个的传输层是码分复用的,并且不同码分复用组的传输层是频分复用的。另外,发射机节点(10)包括预编码电路(1303),其被配置为对每个码字进行预编码 和解调参考信号模式,以及包括多个发射天线的发射电路(1304),并且被配置为将资源块中的预编码的解调参考信号模式发送到接收机节点(12)。
    • 68. 发明申请
    • METHODS AND ARRANGEMENTS FOR TRANSMITTING AND DECODING REFERENCE SIGNALS
    • 用于发送和解码参考信号的方法和安排
    • WO2011156939A1
    • 2011-12-22
    • PCT/CN2010/000927
    • 2010-06-24
    • TELEFONAKTIEBOLAGEN LM ERICSSON (publ)HU, YangSONG, XinghuaWANG, Jianfeng
    • HU, YangSONG, XinghuaWANG, Jianfeng
    • H04W72/04
    • H04W24/02H04J13/0003H04J13/004H04J13/0048H04J13/18H04L5/0016H04L5/0051H04L25/022H04L25/0224H04L25/0232H04L27/2613H04L27/262H04W48/08H04W72/042
    • In some embodiments, a method is provided in a radio network node for transmitting a reference signal over an antenna port, wherein the reference signal is transmitted in a code division multiplexing, CDM, group. The CDM group comprises at least two CDM subgroups, each CDM subgroup being transmitted on a different subcarrier. Each CDM subgroup comprises resource elements. In a first step, the radio network node transmits the reference signal over a first CDM subgroup using an orthogonal cover code. The first CDM subgroup comprises resource elements in a first time slot and a subsequent time slot. In a further step, the radio network node transmits the reference signal over a second CDM subgroup using a permutation of the orthogonal cover code. The second CDM subgroup comprises resource elements in the first time slot and the second time slot. The permutation of the orthogonal cover code is selected in such a way as to enable decoding of the reference signal in the frequency domain, by applying the orthogonal cover code only to resource elements in the CDM group which are comprised in the first time slot.
    • 在一些实施例中,在无线电网络节点中提供了一种用于通过天线端口发送参考信号的方法,其中参考信号在码分多路复用,CDM组中传输。 CDM组包括至少两个CDM子组,每个CDM子组在不同的子载波上传输。 每个CDM子组包括资源元素。 在第一步骤中,无线电网络节点使用正交覆盖码通过第一CDM子组发送参考信号。 第一CDM子组包括第一时隙中的资源元素和随后的时隙。 在另一步骤中,无线电网络节点使用正交覆盖码的置换在第二CDM子群上发送参考信号。 第二CDM子组包括第一时隙中的资源元素和第二时隙。 选择正交覆盖码的排列,以便通过仅对包含在第一时隙中的CDM组中的资源元素应用正交覆盖码,使得能够对频域中的参考信号进行解码。