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    • 81. 发明申请
    • METHOD AND APPARATUS FOR OBTAINING PRECODING MATRIX INDICATOR
    • 用于获取预测矩阵指示器的方法和装置
    • US20120189075A1
    • 2012-07-26
    • US13434540
    • 2012-03-29
    • Jianguo WangYongxing Zhou
    • Jianguo WangYongxing Zhou
    • H04L25/49H04B7/02
    • H04B7/0641H04B7/0626H04B7/0639H04B7/065H04B7/0663
    • The present disclosure discloses a method and an apparatus for obtaining a precoding matrix indicator, and relates to the field of communication technologies. The method includes: obtaining a first rotation matrix according to first channel information; obtaining a first differential matrix according to the first rotation matrix and a currently-obtained instantaneous beam forming matrix/precoding matrix; and quantizing, according to a first differential codebook, a pre-acquired first rank indicator, and preset quantization criteria, the first differential matrix to obtain a differential precoding matrix indicator. The apparatus includes: a first rotation matrix obtaining module, a first differential matrix obtaining module, and a differential precoding matrix indicator obtaining module. In the present disclosure, the differential PMI is obtained according to the channel information, and the differential PMI is used for feedback, which not only reduces an overhead, but also improves feedback accuracy.
    • 本公开公开了一种用于获得预编码矩阵指示符的方法和装置,并且涉及通信技术领域。 该方法包括:根据第一信道信息获得第一旋转矩阵; 根据第一旋转矩阵和当前获得的瞬时波束形成矩阵/预编码矩阵获得第一差分矩阵; 以及根据第一差分码本量化预先获取的第一秩指示符和预设的量化标准,所述第一差分矩阵以获得差分预编码矩阵指示符。 该装置包括:第一旋转矩阵获取模块,第一差分矩阵获取模块和差分预编码矩阵指示器获取模块。 在本公开中,根据信道信息获得差分PMI,并且差分PMI用于反馈,这不仅降低了开销,而且提高了反馈精度。
    • 82. 发明申请
    • Cordierite Porous Ceramic Honeycomb Articles
    • 堇青石多孔陶瓷蜂窝制品
    • US20110293883A1
    • 2011-12-01
    • US12789833
    • 2010-05-28
    • Weiguo MiaoJianguo Wang
    • Weiguo MiaoJianguo Wang
    • C04B35/195B32B3/12
    • C04B38/0006B01D46/2425B01D46/2444B01D2046/2433B01D2046/2437B01D2046/2496B01J35/04C04B35/195C04B2111/00793C04B2111/0081F01N3/0222F01N2260/10Y10T428/24149C04B38/0074
    • Porous ceramic honeycomb articles for use as particulate filters and processes for making the same are described herein. The porous ceramic honeycomb articles include a fired cordierite body. The fired cordierite body has a microcrack parameter (Nb3) of about 0.05 to about 0.25 prior to exposure to a microcracking condition. After exposure to the microcracking condition, the fired cordierite body has a microcrack parameter (Nb3) at least 20% greater than the microcrack parameter prior to exposure to the microcracking condition. The fired cordierite body has a coefficient of thermal expansion (CTE) of about 7.0×10−7/° C. to about 15.0×10−7/° C. over from about 25° C. to about 800° C. prior to exposure to the microcracking condition and a coefficient of thermal expansion of about 1.0×10−7/° C. to about 10.0×10−7/° C. over from about 25° C. to about 800° C. after exposure to the microcracking condition. The microcrack parameter may include a thermal cycle or a chemical treatment.
    • 用作微粒过滤器的多孔陶瓷蜂窝体制品及其制造方法在此描述。 多孔陶瓷蜂窝体制品包括烧制的堇青石体。 烧制的堇青石体在暴露于微裂纹状态之前具有约0.05至约0.25的微裂纹参数(Nb 3)。 在暴露于微裂纹状态之后,烧结的堇青石体在暴露于微裂纹状态之前具有比微裂纹参数大至少20%的微裂纹参数(Nb 3)。 煅烧的堇青石体在约25℃至约800℃之前的热膨胀系数(CTE)为约7.0×10 -7 /℃至约15.0×10 -7 /℃, 暴露于微裂纹条件和热膨胀系数约为1.0×10-7 /℃至约10.0×10-7 /℃,超过约25℃至约800℃。 微裂纹状况。 微裂纹参数可以包括热循环或化学处理。
    • 84. 发明授权
    • Rotary positioning structure for a frame
    • 一个框架的旋转定位结构
    • US07836623B2
    • 2010-11-23
    • US12379913
    • 2009-03-04
    • Jianguo WangSteven TsengDavid Ho
    • Jianguo WangSteven TsengDavid Ho
    • A47G1/16
    • A47G1/142H04N1/00127H04N1/00562H04N2201/0063H04N2201/0089
    • A rotary positioning structure is disclosed for a frame. The frame comprises a housing and a spindle hole disposed on the rear of the housing. The rotary positioning structure comprises elastic members and a rotary stand. Each of the elastic members comprises a tenon and the elastic members are arranged on a circular path surrounding the spindle hole. The rotary stand comprises a rotary shaft and a groove. When the rotary shaft is inserted into the spindle hole, the groove engages with the tenon so that the housing is supported in a first upright position by the rotary stand; also after said rotary shaft is inserted into said spindle hole and then the rotary stand is pivoted on the rotary shaft, the groove engages with another tenon of the elastic members so that the housing is supported in a second upright position by the rotary stand.
    • 公开了一种用于框架的旋转定位结构。 框架包括设置在壳体后部的壳体和心轴孔。 旋转定位结构包括弹性构件和旋转架。 每个弹性构件包括榫头,弹性构件布置在围绕心轴孔的圆形路径上。 旋转支架包括旋转轴和凹槽。 当旋转轴插入到主轴孔中时,凹槽与榫头接合,使得壳体由旋转支架支撑在第一直立位置; 在所述旋转轴插入所述心轴孔中之后,旋转支架在旋转轴上枢转的同时,凹槽与弹性构件的另一榫接合,从而通过旋转支架将壳体支撑在第二直立位置。