知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

150 records (took 0.026 seconds)

    METHOD AND DEVICE FOR ESTIMATING A GAUSSIAN WHITE NOISE POWER IN A CHANNEL, AND RECEIVER
    83.
    发明申请
    METHOD AND DEVICE FOR ESTIMATING A GAUSSIAN WHITE NOISE POWER IN A CHANNEL, AND RECEIVER 有权
    用于估计通道中的高斯白噪声功率的方法和装置，以及接收器

    公开(公告)号：US20090201980A1

    公开(公告)日：2009-08-13

    申请号：US12423085

    申请日：2009-04-14

    Applicant: Gengshi WU ,  Jing YANG

    Inventor： Gengshi WU ,  Jing YANG

    IPC: H04Q1/20

    CPC classification number: H04B17/345

    Abstract: A method and device for estimating a Gaussian white noise power in a channel and a receiver are provided. The method includes performing a multi-path search on a received signal to find out paths of the signal; performing a noise estimation on one of the paths to acquire a total noise power of the path; performing an inter-path interference noise estimation on N paths spaced apart from the path by an integral number of chips to obtain an inter-path interference noise power of a single path of the signal, where N is an integer greater than or equal to 1; and subtracting the inter-path interference noise power from the total noise power to obtain the Gaussian white noise power. Through the technical solution of the disclosure, the Gaussian white noise power in a channel is obtained with a higher accuracy, so that the performance of equalization is enhanced.

    Abstract translation: 提供了一种用于估计信道和接收机中的高斯白噪声功率的方法和装置。 该方法包括对接收到的信号执行多路径搜索以找出该信号的路径; 对所述路径之一执行噪声估计以获得所述路径的总噪声功率; 在与路径间隔一定数量的码片的N个路径上执行路径间干扰噪声估计，以获得信号的单个路径的路径间干扰噪声功率，其中N是大于或等于1的整数 ; 并从总噪声功率中减去路径间干扰噪声功率以获得高斯白噪声功率。 通过本公开的技术方案，以更高的精度获得信道中的高斯白噪声功率，从而提高均衡性能。

    Method and apparatus for performing motion compensated temporal filtering in video encoding
    85.
    发明授权
    Method and apparatus for performing motion compensated temporal filtering in video encoding 有权

    公开(公告)号：US07512182B2

    公开(公告)日：2009-03-31

    申请号：US10929976

    申请日：2004-08-30

    Applicant: Jing Yang Chen

    Inventor： Jing Yang Chen

    IPC: H04N1/58 ,  H04N1/409 ,  H04N5/911

    CPC classification number: H04N19/577 ,  H04N19/117 ,  H04N19/194

    Abstract: A method (50) and apparatus (40) for reducing noise in a video signal calculates (53) a discrimination value of a filter based on a magnitude difference between a current frame and a prior frame of a sequence of frames and modifies (54) the current frame using the modified discrimination value. The output of the filter is calculated as follows: g(i, j, k)=f(i, j, k)±β wherein: f (i, j, k) is the current frame input to the filter; g(i, j, k) is the current frame output from the filter; and β is the discrimination value of the filter, which is calculated as follows: β = { κδ ′ + χ , δ ′ = max ⁢ { δ , δ 0 } , δ

    Trifluoromethylating reagents and synthesizing processes
    89.
    发明授权
    Trifluoromethylating reagents and synthesizing processes 失效
    三氟甲基化试剂和合成方法

    公开(公告)号：US06215021B1

    公开(公告)日：2001-04-10

    申请号：US09335857

    申请日：1999-06-17

    Applicant: Jean'ne M. Shreeve ,  Jing-Jing Yang ,  Robert L. Kirchmeier

    Inventor： Jean'ne M. Shreeve ,  Jing-Jing Yang ,  Robert L. Kirchmeier

    IPC: C07C30900

    CPC classification number: C07C381/12

    Abstract: A family of electrophilic trifluoromethylating reagents which can be synthesized by comparatively simple, inexpensive routes, and for which the reactivity can be varied according to need. A composition of matter according to the first embodiment of the invention comprises a compound having the formula: in which A comprises H or F and B comprises F, SCF3, OCF3, OCHF2, S+(CF3)C6H5, NO2 or an NO2 substituent. In a second embodiment of the invention, a process for preparing a trifluoromethyl diphenylsulfonium triflate compound corresponding to the formula shown above comprises reacting phenyl trifluoromethyl sulfoxide or one of its derivatives with an aromatic compound in which A comprises H or F and B comprises H, F, SCF3, OCF3, OCHF2, S+(CF3)C6H5, NO2 or an NO2 substituent. In a third embodiment of the invention, a trifluoromethylation process comprises reacting a trifluoromethyl diphenylsulfonium triflate corresponding to the formula shown above with an electron rich substrate.

    Abstract translation: 一种亲电的三氟甲基化试剂，可以通过相对简单，便宜的途径合成，并且可以根据需要改变反应性。 根据本发明第一实施方案的物质组合物包含具有下式的化合物：其中A包含H或F，B包含F，SCF 3，OCF 3，OCHF 2，S +（CF 3）C 6 H 5，NO 2或NO 2取代基。 在本发明的第二个实施方案中，制备对应于上述式的三氟甲基二苯基锍三氟甲磺酸酯化合物的方法包括使苯基三氟甲基亚砜或其衍生物之一与芳族化合物反应，其中A包含H或F，B包括H，F ，SCF 3，OCF 3，OCHF 2，S +（CF 3）C 6 H 5，NO 2或NO 2取代基。 在本发明的第三个实施方案中，三氟甲基化方法包括使对应于上述式的三氟甲基二苯基锍三氟甲磺酸酯与富含电子的基质反应。

    Pet protective collar
    90.
    外观设计
    Pet protective collar 有权

    公开(公告)号：USD1013292S1

    公开(公告)日：2024-01-30

    申请号：US29864697

    申请日：2022-06-13

    Applicant: Jing Yang

    Designer： Jing Yang

    Abstract: FIG. 1 is a perspective view of a pet protective collar showing my new design;
    FIG. 2 is another perspective view thereof;
    FIG. 3 is a front elevational view thereof;
    FIG. 4 is a rear elevational view thereof;
    FIG. 5 is a left side elevational view thereof;
    FIG. 6 is a right side elevational view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines in the drawings depict portions of the pet protective collar that form no part of the claimed design.

Patent Agency Ranking