公开(公告)号：US20010048341A1

公开(公告)日：2001-12-06

申请号：US09864946

申请日：2001-05-24

Applicant: STMicroelectronics Ltd.

Inventor： Kalyana Chakravarthy

IPC: H03B001/00

CPC classification number: H03K5/1252

Abstract: A glitch filter includes a storage element for storing a current state, which is the output of the filter. An output of the storage element is connected to one input of a state comparator. Another input of the state comparator is connected to an input signal. A programmable clock delay is connected between the state comparator and the storage element. The programmable clock delay may provide a programmed duration independent of the technology used for implementation. The glitch filter is arranged such that the input signal is stored as the new current state in the storage element only if the input signal changes and then remains unchanged for the programmed duration.

Abstract translation: 毛刺滤波器包括用于存储作为滤波器的输出的当前状态的存储元件。 存储元件的输出连接到状态比较器的一个输入。 状态比较器的另一输入端连接到输入信号。 在状态比较器和存储元件之间连接可编程时钟延迟。 可编程时钟延迟可以提供独立于用于实现的技术的编程时间。 毛刺滤波器被布置成使得仅当输入信号改变然后在编程的持续时间内保持不变时，才将输入信号作为新的当前状态存储在存储元件中。