公开(公告)号：US06570934B1

公开(公告)日：2003-05-27

申请号：US09454913

申请日：1999-12-06

申请人： Kanji Harada

发明人： Kanji Harada

IPC分类号： H03K900

CPC分类号： H04L25/0292 ,  H03K3/013 ,  H03K3/0377 ,  H03K5/084 ,  H04L25/0272

摘要： An object of the invention is to prevent an erroneous operation of the internal circuits due to glitches and to dispense with a circuit as a countermeasure against glitches. There are provided a low-value threshold detector, a high-value threshold detector, and a set/reset latch circuit. The low-value threshold detector receives two differential data input DATA+ and DATA− signals and detects whether both input signals are lower than a first threshold voltage. The high-value threshold detector receives the input DATA+ and DATA− signals and detects whether one of the input signals is higher than a second threshold voltage. And the set/reset latch circuit is used for outputting an SE0 signal. the set/reset latch circuit is set when the levels of both input DATA+ and DATA− signals are lower than or equal to the first threshold voltage, and is reset when one of the levels of the input DATA+ and DATA− signals is higher than or equal to the second threshold voltage.

摘要翻译： 本发明的目的是防止由于毛刺引起的内部电路的错误操作，并且省略了电路作为防止毛刺的对策。 提供了低值阈值检测器，高值阈值检测器和设置/复位锁存电路。 低值阈值检测器接收两个差分数据输入DATA +和DATA-信号，并检测输入信号是否低于第一阈值电压。 高值阈值检测器接收输入的DATA +和DATA-信号，并检测输入信号中的一个是否高于第二阈值电压。 并且设置/复位锁存电路用于输出SE0信号。 当输入DATA +和DATA-信号的电平都低于或等于第一阈值电压时，置位/复位锁存电路被置位，并且当输入DATA +和DATA-信号的一个电平高于或等于第一阈值电压时复位， 等于第二阈值电压。