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AssigneeParadyne Corporation
InventorsThomas J. Bingel, Ramon B. Hazen
Estimating the term…
The present invention provides a method and apparatus for eliminating or reducing local area and broad area interference in a twisted pair transmission system. The apparatus of the present invention includes a detection device, such as an antenna, for example, for detecting electromagnetic interference coupled into a twisted pair line, a sampling/scaling device which samples and scales the detected signal, and a combiner device which combines a signal correction component with the signal received over the twisted pair by a differential receiver. The sampling/scaling device preferably includes an analog-to-digital converter (ADC) which converts the detected analog signal into a digital signal and a digital signal processor, which receives the digital signal from the ADC and processes the signal to generate a correction signal. The correction signal is then subtracted from the signal received by the differential receiver. The sampling/scaling device may be fixed or adaptive.
An apparatus for canceling interference coupled into a twisted wire pair of a transmission system connecting a central office to a customer premises, the apparatus comprising:
An apparatus for canceling interference coupled into a twisted wire pair of a transmission system connecting a central office to a customer premises, the apparatus comprising:
A method for canceling interference coupled into a twisted wire pair of a transmission system connecting a central office to a customer premises, the method comprising the steps of:
Dependencies are inferred from the claim text.