Patent ID: 6559756
Filing Date: 2003-05-06
Classification: H04L

Abstract:
In a broadband communications system having forward and reverse paths, the forward and reverse paths including communications equipment for transmitting forward and reverse signals, respectively, in predetermined frequency bands, the forward and reverse signals including noise signals and carrier signals, the communications equipment including an ingress monitoring device for monitoring the reverse signals and for detecting ingress signals that may be present along with the noise and carrier signals, the ingress monitoring device comprising:a processor for resolving the reverse signals into predetermined sub-bands at a first resolution, and for computing a power level for each of the sub-bands, and for comparing the power level that is indicative to the power level of the ingress signals for each of the sub-bands with a predetermined threshold value, wherein when ingress signals are present along with the reverse signals, the processor provides an alarm signal that indicates the specific communications equipment in which the ingress signals have been detected.