公开(公告)号：US20020122519A1

公开(公告)日：2002-09-05

申请号：US10086900

申请日：2002-03-01

Applicant: Optimum Power Technology, L.P.

Inventor： Robert Douglas ,  Geoffrey McCullough

IPC: H03D003/24

CPC classification number: H03M1/0629 ,  H03M1/127

Abstract: A self-tuning filter is disclosed. The self-tuning filter includes a digital clocking signal and an input coupled to the digital clocking signal, whereby the input reads a value incident on the input when the digital clocking signal changes to a predetermined state. A clock-tunable filter is, furthermore, coupled to the digital clocking signal so that the frequency of the clock-tunable filter is adjusted in relation to a sampling frequency at which the digital clocking signal operates. The self-tuning filter may be applied to an input of a data acquisition unit and applied to an input having a variable sampling frequency. A method of controlling the frequency of a clock-tunable filter is also disclosed.

Abstract translation: 公开了一种自调谐滤波器。 自调谐滤波器包括数字时钟信号和耦合到数字时钟信号的输入，由此当数字时钟信号变为预定状态时，输入读取入射到输入端的值。 此外，时钟可调谐滤波器耦合到数字时钟信号，使得时钟可调滤波器的频率相对于数字时钟信号操作的采样频率被调整。 自调谐滤波器可以应用于数据采集单元的输入端，并被施加到具有可变采样频率的输入端。 还公开了一种控制时钟可调滤波器的频率的方法。