公开(公告)号：US20060132192A1

公开(公告)日：2006-06-22

申请号：US11242754

申请日：2005-10-04

Applicant: Jae-Suk Yu

Inventor： Jae-Suk Yu

IPC: H03K5/22

CPC classification number: H03K5/2481

Abstract: A high speed analog transmission envelope (data-validity) detector for detecting the validity or invalidity of received data by generating (and comparing) first through fourth level-shifted signals based on a pair of differential input signals that are externally applied (received). Each of the first through fourth level-shifted signals has voltage levels different from (e.g., higher than) the differential input signals. After comparing the first through fourth level-shifted signals with each other, the comparison results are used in determining the validity of the differential input signals (data). The analog transmission envelope (data) detector flexibly adapts to variations in common mode voltage, and simplifies the circuit architecture because it does not require an additional reference voltage for determining the validity of received data.