ENVELOPE DETECTION DEVICE AND RELATED COMMUNICATION DEVICE

摘要

An envelope detection device for detecting a transmission signal of a high speed serial communication includes: an operation circuit, for receiving the transmission signal and generating a set of operated outputs according to the transmission signal and at least one reference signal; a reference signal generating circuit coupled to the operation circuit, for providing the reference signal to the operation circuit, wherein the reference signal generating circuit is operable to provide the reference signal with different voltage levels; and a comparing circuit coupled to the operation circuit, for comparing the set of calculated outputs to generate a comparison result. The envelope detection device detects a transmission state and a disconnect state of the high speed serial communication according to the comparison result generated based on the reference signals at different voltage levels.

主权项

1. An envelope detection device for detecting a transmission signal in a high speed serial communication, comprising:
an operation circuit, for receiving the transmission signal and generating a set of operation outputs according to a difference between the transmission signal and at least one reference signal; a reference signal generation circuit, coupled to the operation circuit, for providing the reference signal to the operation circuit, wherein the reference signal generation circuit is operable to provide the reference signal with different levels; and a comparison circuit, coupled to the operation circuit, for comparing the set of the operation outputs to generate a comparison result; wherein the envelope detection device detects a transmission state and a disconnect state of the high speed serial communication according to the comparison results that are generated based on the reference signal at different levels.