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    • 72. 发明公开
    • 멀티미디어 신호 처리 방법 및 장치
    • 用于处理多媒体信号的方法和装置
    • KR1020160052575A
    • 2016-05-12
    • KR1020167006859
    • 2014-09-17
    • 주식회사 윌러스표준기술연구소
    • 오현오이태규
    • H04S3/00G10L19/008
    • H04S5/005G10L19/008G10L19/0204G10L25/48H03H17/0229H03H17/0248H03H17/0266H03H17/0272H03H21/0012H04R5/04H04S3/00H04S3/002H04S3/008H04S3/02H04S7/30H04S2400/01H04S2400/03H04S2420/03H04S2420/07H04S2420/11
    • 본발명은멀티미디어신호를효과적으로재생하기위한신호처리방법및 장치에관한것으로서, 더욱상세하게는복수의서브밴드를갖는멀티미디어신호의필터링을낮은연산량으로구현하기위한멀티미디어신호처리방법및 장치에관한것이다. 이를위해본 발명은, 복수의서브밴드를갖는멀티미디어신호를수신하는단계; 상기멀티미디어신호의각 서브밴드신호의필터링을위한적어도하나의원형(proto-type) 필터계수를수신하는단계; 상기원형필터계수를복수의서브밴드필터계수들로변환하는단계; 상기각 서브밴드필터계수를해당서브밴드필터계수에서추출된특성정보를적어도부분적으로이용하여획득된필터차수정보에기초하여절단하는단계, 적어도하나의상기절단된서브밴드필터계수의길이는다른서브밴드의절단된서브밴드필터계수의길이와다름; 및상기각 서브밴드신호에대응하는상기절단된서브밴드필터계수를이용하여상기멀티미디어신호를필터링하는단계; 를포함하는것을특징으로하는멀티미디어신호처리방법및 이를이용한멀티미디어신호처리장치를제공한다.
    • 本发明涉及一种用于处理信号的方法和装置,其用于有效地再现多媒体信号,更具体地说,涉及一种用于处理信号的方法和装置,用于对具有 具有低计算量的多个子带。 为此,提供了一种处理多媒体信号的方法,包括:接收具有多个子带的多媒体信号; 接收用于过滤多媒体信号的每个子带信号的至少一个原型滤波器系数; 将原型滤波器系数转换成多个子带滤波器系数; 基于通过至少部分地使用从相应的子带滤波器系数提取的特征信息获得的滤波器顺序信息来截断每个子带滤波器系数,至少一个截断的子带滤波器系数的长度与另一个子带的截短的子带滤波器系数的长度不同; 以及通过使用与每个子带信号相对应的截断的子带滤波器系数和使用其来处理多媒体信号的装置来对多媒体信号进行滤波。
    • 74. 发明公开
    • 직접형 구조와 전치형 구조를 병합한 디지털 필터의 구조설계
    • 具有直接类型结构和传输型结构的结构的数字滤波器
    • KR1020010091627A
    • 2001-10-23
    • KR1020000013498
    • 2000-03-16
    • 정정화
    • 정정화윤상훈
    • H03H17/02
    • H03H17/02H03H17/0227H03H17/0229H03H21/0012
    • PURPOSE: A digital filter having a structure merged with a direct-type structure and a transposed-type structure is provided to be utilized in a pulse molding filter of a communication circuit by manufacturing a filter in which a critical path delay is reduced and a volume of a hardware is decreased. CONSTITUTION: A digital filter is comprised of an input delay unit(301), a count adding unit(302), and an accumulating and storing unit(303). The input delay unit(301) delays an input transmitted thereto by using a resistor. The count adding unit(302) resolves the count into a signed digit, collects it by G number, and calculates it through an adder tree. The G is an optional integer. If the G increases, it approaches to a direct-type structure; and, if otherwise, it approaches to a transposed-type structure. The accumulating and storing unit(303) stores and accumulates the result value from the count adding unit(302). If the G increases, the resistor number of the accumulating and storing unit(303) is reduced; and, if otherwise, the resistor number is increased.
    • 目的:提供具有与直接型结构和转置型结构相结合的结构的数字滤波器,用于通过制造其中关键路径延迟减小的滤波器和通信电路的脉冲模制滤波器的体积 的硬件减少了。 构成:数字滤波器包括输入延迟单元(301),计数加法单元(302)和累积存储单元(303)。 输入延迟单元(301)通过使用电阻来延迟发送到其的输入。 计数添加单元(302)将计数解析为有符号数字,通过G号收集,并通过加法器树进行计算。 G是可选整数。 如果G增加,它接近直接型结构; 如果否则,它接近转置型结构。 累积和存储单元(303)从计数添加单元(302)存储和累加结果值。 如果G增加,则累积储存单元(303)的电阻数减少; 另外,电阻数也增加。
    • 75. 发明公开
    • 룩-업테이블방식을이용한디지털파형정형필터링장치
    • 使用查看表过滤数字波形的设备
    • KR1020000032604A
    • 2000-06-15
    • KR1019980049109
    • 1998-11-16
    • 한국전자통신연구원
    • 이정진이훈유태환
    • H03H9/00
    • H03H17/0226H03H17/0227H03H17/0229H03H17/0238H03H21/0012
    • PURPOSE: An apparatus for filtering digital waveform shaping using a look-up table is provided to sharply reduce the size of chips by using a look-up table, not by multiplying Tap factors, thereby capable of storing and using them during their filtering. CONSTITUTION: An in phase filter(110) selects the specific Tap factors according to the input in phase symbols from the outside, multiplies the selected Tap factors and prints the added multiplex signals. An orthogonal filter(120) selects the specific Tap factors according to the input orthogonal symbols from the outside, multiplies the selected Tap factors and prints the added multiplex signals. The first adding machine(130) adds and prints the signals filtered by the in phase filter(110) and by the orthogonal filter(120).
    • 目的:提供一种使用查找表对数字波形整形进行滤波的装置,通过使用查找表来大大减小芯片的尺寸,而不是通过倍增因子,从而能够在滤波过程中存储和使用它们。 构成:同相滤波器(110)根据来自外部的相位符号的输入选择特定的分接因子,将所选择的Tap因子相乘并打印所添加的多路复用信号。 正交滤波器(120)根据来自外部的输入正交符号选择特定的分接因子,将所选择的Tap因子相乘并打印所添加的多路复用信号。 第一加法机构(130)对通过同相滤波器(110)和正交滤波器(120)滤波的信号进行相加和打印。