Jds Uniphase Corporation

Acterna LLC

Daniel Eugene Cooprider

Loren R Eggert

Gregory W Massey

Thomas Renken

A portable network test meter device for a CATV network is disclosed which permits simultaneous operation of a measurement system including a first tuner and a communication system including a cable modem including a second tuner. Only a single RF input/output port is necessary for connection to the CATV network.

Hand-held test device with two tuners

A method and apparatus are provided for detecting network impairments through tilt-normalized measurement data, the method including: collecting data for a network signal; computing a best-fit tilt for the collected data; performing tilt-normalization of the collected data responsive to the computed best-fit tilt; and determining whether the tilt-normalized data crosses a threshold, and if so, pattern matching the tilt-normalized data to detect a network impairment; and the apparatus including: an input unit for collecting data from a network signal; a tilt unit connected to the input unit for computing a best-fit tilt for the collected data and performing tilt-normalization of the collected data responsive to the computed best-fit tilt; and a pattern matching unit connected to the tilt unit for determining whether the tilt-normalized data crosses a threshold, and if so, pattern matching the tilt-normalized data to detect at least one network impairment.

Growing community of inventors

Greenwood, IN, United States of America

Daniel Eugene Cooprider