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71 条记录 (耗时 0.049 秒)

    Phase calculation apparatus using binary search
    41.
    发明授权
    Phase calculation apparatus using binary search 失效
    使用二进制搜索的相位计算装置

    公开(公告)号：US07864886B2

    公开(公告)日：2011-01-04

    申请号：US11634554

    申请日：2006-12-06

    申请人： Hun Sik Kang ,  Do Young Kim

    发明人： Hun Sik Kang ,  Do Young Kim

    IPC分类号： H04L27/00 ,  G06F7/38 ,  G06F1/02

    CPC分类号： H04L27/0014 ,  H04L27/366 ,  H04L27/38 ,  H04L2027/0067

    摘要： A phase calculation apparatus using a binary search is provided. The phase calculation apparatus includes a quarter surface preprocessor determining the bigger one between an absolute value of I component data and an absolute value of Q component data as horizontal component data and the smaller one as perpendicular component data, and detecting information on a phase region indicating an mth (m=1 to 8) phase region (the mth phase region is between (m−1) π/4 and m π/4 in which the I/Q component data are located; a phase representative value detector detecting phase representative values x corresponding to the horizontal component data and the perpendicular component data; and a quarter surface postprocessor calculating phase values of the I/Q component data based on the detected information about the phase region and the detected phase representative values x. The phase can be calculated using a limited memory, low complexity of calculation and regardless of the number of bits of I/Q component data.

    摘要翻译： 提供了使用二进制搜索的相位计算装置。 相位计算装置包括四分之一表面预处理器，其确定I分量数据的绝对值和Q分量数据的绝对值之间的较大值作为水平分量数据，较小的一个作为垂直分量数据，并且检测关于指示 第m（m = 1〜8）相区域（第m相位区域在I / Q分量数据所位于的（m-1）＆lt; pgr / 4和m＆pgr; / 4之间;相位代表值检测器 相对于水平分量数据和垂直分量数据的相位代表值x;以及四分之一表面后处理器，基于检测到的关于相位区域的信息和检测到的相位代表值x来计算I / Q分量数据的相位值，相位 可以使用有限的存储器计算，计算复杂度低，而不管I / Q分量数据的位数。

    Method and apparatus for searching for combined fixed codebook in CELP speech codec
    42.
    发明授权
    Method and apparatus for searching for combined fixed codebook in CELP speech codec 有权
    用于在CELP语音编解码器中搜索组合固定码本的方法和装置

    公开(公告)号：US07496504B2

    公开(公告)日：2009-02-24

    申请号：US10671266

    申请日：2003-09-24

    申请人： Eung Don Lee ,  Do Young Kim ,  Bong Tae Kim

    发明人： Eung Don Lee ,  Do Young Kim ,  Bong Tae Kim

    IPC分类号： G01L19/00 ,  G01L19/12

    CPC分类号： G10L19/12 ,  G10L2019/0013

    摘要： Provided are a combined, fixed codebook searching method and apparatus used in a code excited linear prediction (CELP) speech codec. The method is used in a code excited linear prediction (CELP) speech codec, and includes searching for a fixed codebook using a full search method that searches for the fixed codebook at all pulse positions; selecting a fixed codebook searching method by counting the number of users who are accessing a gateway, comparing the number of users with a predetermined threshold, and selecting a proper fixed codebook searching method based on the result of comparison; searching for the fixed codebook using the selected fixed codebook searching method; and checking whether the search for the fixed codebook is complete for all tracks of the CELP speech codec, terminating a routine of searching for the fixed codebook when it is determined the search is complete for all the tracks, and selecting a fixed codebook searching method again in consideration of the number of gateway users when there remains a track to be searched for. Accordingly, a fixed codebook searching method is selected in consideration of the number of users who are accessing a gateway, thereby enabling an effective adjustment of either the quality of sound or the channel capacity of the gateway.

    摘要翻译： 提供了一种在代码激励线性预测（CELP）语音编解码器中使用的组合固定码本搜索方法和装置。 该方法用于代码激励线性预测（CELP）语音编解码器，并且包括使用在所有脉冲位置搜索固定码本的全搜索方法来搜索固定码本; 通过对正在接入网关的用户数进行计数，将用户数与预定阈值进行比较，并且基于比较结果选择适当的固定码本搜索方法来选择固定码本搜索方法; 使用所选择的固定码本搜索方法搜索固定码本; 并检查固定码本的搜索对于CELP语音编解码器的所有轨道是否完整，当确定所有轨道的搜索完成时终止搜索固定码本的例程，并再次选择固定码本搜索方法 考虑到当存在要搜索的轨道时的网关用户的数量。 因此，考虑到正在访问网关的用户的数量来选择固定的码本搜索方法，从而能够有效地调整网关的声音质量或信道容量。

    Communication method and equipment for freeze-frame video phone
    43.
    发明授权
    Communication method and equipment for freeze-frame video phone 失效
    用于冻结视频电话的通信方法和设备

    公开(公告)号：US5199061A

    公开(公告)日：1993-03-30

    申请号：US823029

    申请日：1992-01-16

    申请人： Do Young Kim

    发明人： Do Young Kim

    IPC分类号： H04L1/00 ,  H04N1/333 ,  H04N7/14

    CPC分类号： H04L1/0026 ,  H04L1/0002 ,  H04L1/0015 ,  H04N1/33307 ,  H04N7/147 ,  H04L1/0014 ,  H04L1/0025 ,  H04N2201/33371

    摘要： The present invention comprises a system bus performing control and data transmission function among modules, a system control means, connected to the system bus, performing system control and interrupt control function, a modem and DTMF signal processing means, connected to the system bus, performing modulation and demodulation in the transmission rate of 9,600 bps, 4,800 bps, and 2,400 bps, and transmission and reception of DTMF signal, a standard telephone line connection means connecting the modem and DTMF signal processing means and a telephone to a standard telephone line, a program ROM, connected to the system bus, storing a program which controls communication through the modem and DTMF signal processing means, and a RAM, connected to the system bus, retaining current data.

    摘要翻译： 本发明包括在模块之间执行控制和数据传输功能的系统总线，连接到系统总线的系统控制装置，执行系统控制和中断控制功能，连接到系统总线的调制解调器和DTMF信号处理装置，执行 传输速率为9600bps，4,800bps和2400Bbps的调制和解调，DTMF信号的发送和接收，将调制解调器和DTMF信号处理装置连接的标准电话线连接装置和电话到标准电话线， 程序ROM，连接到系统总线，存储通过调制解调器和DTMF信号处理装置控制通信的程序，以及连接到系统总线的RAM，保留当前数据。

    Telescopic pipe
    44.
    发明授权
    Telescopic pipe 有权

    公开(公告)号：US11851308B2

    公开(公告)日：2023-12-26

    申请号：US17606106

    申请日：2020-01-22

    申请人： Do Young Kim ,  Yeong Ju Kim ,  Yeong Min Kim ,  Ju Eun Kim

    发明人： Do Young Kim ,  Yeong Ju Kim ,  Yeong Min Kim ,  Ju Eun Kim

    IPC分类号： B66F3/10 ,  E04H12/18 ,  B66C23/70 ,  E06C7/02 ,  B66F3/44

    CPC分类号： B66F3/10 ,  E04H12/182 ,  B66C23/706 ,  B66F3/44 ,  E06C7/02

    摘要： A telescopic pipe includes a base pipe having a base inner pipe rotated by external force, and a base outer pipe arranged to receive the base inner pipe; a connecting pipe having a connecting inner pipe coupled to the base inner pipe to be extendable to transfer rotational force, and a connecting outer pipe screw-coupled to the inner circumferential surface of the base outer pipe to be extendable; and a finishing pipe including a finishing inner pipe coupled to the connecting inner pipe to be extendable and to be rotated, and a finishing outer pipe that is interlocked by means of rotation of the finishing inner pipe and is screw-coupled to the inner circumferential surface of the connecting outer-pipe to be extendable, wherein the connecting outer pipe is interlocked by the rotational force of the extended finishing outer pipe and thus is extended and retracted along the base outer pipe.