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
    • 71. 发明申请
    • OPERATING FREQUENCY REDUCTION FOR TRANSVERSAL FIR FILTER
    • 用于横向FIR滤波器的工作频率降低
    • WO2005022745A1
    • 2005-03-10
    • PCT/CA2004/001571
    • 2004-08-27
    • DIABLO TECHNOLOGIES INC.LAPOINTE, Marcel
    • LAPOINTE, Marcel
    • H03H17/00
    • H03H17/0223H03H17/06H03H2017/0245H03H2017/0247H04L25/0278H04L25/0288H04L25/0292H04L25/03038H04L25/03057H04L25/03343H04L25/14
    • A method and system for reducing the frequency of operation for a transversal Finite Impulse Response (FIR) filter is disclosed. In the preferred embodiment, the transversal filter operates in such a way that it has an even and odd row of data, which are latched on rising and falling edges of the clock respectively. This allows the clock frequency to be reduced by a factor of 2, and thus allows the use of more power efficient latches. A reduction in the frequency of operation causes the high speed latches within the transversal filter to hold the data bits twice as long as is required, which changes the desired impulse response of the FIR filter. A circuit is required to select the appropriate data bits from the output of the appropriate half-speed latch, and subsequently scale it to apply the co-efficient gain. Each of the subsystems is analog, and operates in accordance with a synchronous clock system. In a more general embodiment of the invention, the data is provided to Q shift registers that operate at a clock rate which is reduced by a factor of Q.
    • 公开了一种用于降低横向有限脉冲响应(FIR)滤波器的操作频率的方法和系统。 在优选实施例中,横向滤波器以这样的方式工作,使得它具有偶数和奇数行的数据,其分别锁存在时钟的上升沿和下降沿。 这允许将时钟频率降低2倍,从而允许使用更多功率高效的锁存器。 操作频率的降低导致横向滤波器内的高速锁存器将数据位保持为所需时间的两倍,这改变了FIR滤波器的期望脉冲响应。 需要一个电路从适当的半速锁存器的输出中选择适当的数据位,然后将其缩放以应用高效增益。 每个子系统是模拟的,并且根据同步时钟系统进行操作。 在本发明的更一般实施例中,将数据提供给以移位因子Q减小的时钟速率工作的Q移位寄存器。
    • 72. 发明申请
    • SYSTEM FOR VARYING THE DYNAMIC RANGE OF COEFFICIENTS IN A DIGITAL FILTER
    • 改变数字滤波器中系数的动态范围的系统
    • WO99054996A1
    • 1999-10-28
    • PCT/IB1999/000263
    • 1999-02-15
    • H03H21/00H03H17/02H03H17/06
    • H03H17/06H03H17/0223
    • A digital filter includes a plurality of filter cells, each of which includes circuitry to determine a coefficient for the filter cell, to adjust the coefficient in accordance with a gain that is used by each of the plurality of filter cells, and to multiply input data by the adjusted coefficient in order to generate a filter cell output. An adder circuit generates a filter output by adding filter cell outputs from each of the plurality of filter cells, and an inverse gain circuit adjusts the filter output in accordance with an inverse of the gain used to adjust the coefficients of the plurality of filter cells.
    • 数字滤波器包括多个滤波器单元,每个滤波器单元包括确定滤波单元的系数的电路,根据多个滤波单元中的每一个使用的增益来调整系数,并将输入数据 通过调整后的系数来生成滤波器单元输出。 加法器电路通过将来自多个滤波器单元中的每一个的滤波器单元输出相加而产生滤波器输出,并且逆增益电路根据用于调整多个滤波单元的系数的增益的倒数来调整滤波器输出。
    • 79. 发明授权
    • 연산 프로세서를 이용한 디지털 베이스 부스터
    • 연산프로서서를이용한디지털베이스부스터
    • KR100378192B1
    • 2003-03-29
    • KR1020010003166
    • 2001-01-19
    • 삼성전자주식회사
    • 염왕섭
    • H03H17/02
    • H03H17/0223G06F7/49947G06F7/5443H03G5/005
    • A digital base booster (DBB) for reducing hardware by using an arithmetic processor is provided. Instead of using a conventional IIR filter having a cascade structure including a plurality of partial building blocks, the digital base booster using an arithmetic processor includes first internal data, an inputting portion, a data assigner, an arithmetic portion, and an output data storing device. The first internal data is the output data of the arithmetic portion. The inputting portion includes a plurality of multi-bit registers, thereby storing input data and the first internal data and outputting the stored data in a predetermined signal. The data assigner selects one output data from a plurality of output data of the inputting portion. The arithmetic portion performs an arithmetic operation on the output data of the data assigner and data stored in the arithmetic portion, compensates for and stores a round-off error of the data output by the operation, and outputs the first internal data. The output data storing device stores and outputs data processed in the arithmetic portion.
    • 提供了一种通过使用算术处理器来减少硬件的数字基础增强器(DBB)。 代替使用具有包括多个部分构建块的级联结构的传统IIR滤波器,使用算术处理器的数字基本增强器包括第一内部数据,输入部分,数据分配器,算术部分和输出数据存储设备 。 第一个内部数据是算术部分的输出数据。 输入部分包括多个多位寄存器,从而存储输入数据和第一内部数据,并以预定信号输出存储的数据。 数据分配器从输入部分的多个输出数据中选择一个输出数据。 算术部分对数据分配器的输出数据和存储在算术部分中的数据执行算术运算,补偿并存储由该操作输出的数据的舍入误差,并输出第一内部数据。 输出数据存储装置存储并输出在运算部分中处理的数据。