The disclosed invention performs reference clock detec tion and rate detection within
communication port modules, which are referred to herein as transceivers. The invention …

In an optical fiber communication system, for signal monitoring a transparent optical network
(all-optical networks), ie a system without digital intermediate regeneration, the bit error …

A jitter measurement circuit includes: a conversion section sampling one of a reference
signal and a measurement target signal in response to the other of the signals, thereby …

An eye diagram analyzer assigns a plurality of SUT data Signals to be members of a labeled
group of channels. There may be a plurality of Such groups. In addition to mere …

The scale and complexity of an apparatus is reduced by omitting a clock extraction section.
The apparatus includes: a sampling pulse train generation device which generates an …

Methods and apparatus are provided for monitoring a data eye associated with a received
signal. A plurality of samples of the received signal are obtained for each unit interval based …

The present invention provides a signal integrity measurement method and apparatus which
allows for signal characteristics to be measured by obtaining samples taken at the midpoint …

Delay induced apparent amplitude desensitization in a data signal channel and its
accompanying worm-like distortion in an Eye Diagram Analyzer is avoided by altering the …