An apparatus for monitoring noise in a Transmission Medium sensitive to noise, a method for monitoring noise and a cable television network that loemplean

摘要

An apparatus is provided for Monitoring the noise in a Transmission Medium sensitive to noise, such as a coaxial cable (106) that forms part of a cable television.A portion of a transmitted signal is received from a coaxial cable by a coupling device (404).The senalrecibida is amplified by a logarithmic Amplifier (408) to reduce the dynamic range of the signal.The signal amplifier is compared with a Plurality of reference levels for comparators (410) to provide an indication of the amplitude of the signal.The amplitudes are supplied to unmuestreo by a device Processor (406) to provide an indication of the duration of the signal.In addition, the background noise is composed of unintegrador (409) in order to provide an indication of noise entered.The Invention also provides a method of noise Monitoring Network and a televisionpor cable using Said Apparatus.