Method and apparatus for spectral containment over telephone service lines
AssigneeAT&T Labs, Inc.
InventorsMark A. Russell, Stephen Weinert
Life of this patent
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Abstract
A method for providing spectral containment over telecommunications service lines is provided. The method includes selecting a filter having spectral characteristics corresponding to a predetermined passband. The method also includes connecting the filter in series to at least one loop used to provide at least one telecommunications service to a customer. The method further includes activating service over the at least one loop. The filter attenuates signals transmitted on frequencies outside of the predetermined passband over the at least one loop.
Claims20
A method for providing spectral containment over telecommunications service lines, comprising:
- selecting a filter having spectral characteristics corresponding to a predetermined passband;
- connecting the filter in series to and between two ends of at least one loop used to provide at least one telecommunications service to a customer;
- and
- activating service over said at least one loop, said filter preventing signals transmitted on frequencies outside of the predetermined passband over said at least one loop.
A method for manufacturing a spectral containment unit for providing spectral containment over telecommunications service lines, comprising:
- selecting a filter having predetermined spectral characteristics corresponding to a predetermined passband;
- connecting the filter in series to and between two ends of at least one loop used to provide at least one telecommunications service to a customer;
- and
- packaging said filter within a housing that also houses a loop modification unit.
A method for manufacturing a spectral containment unit for providing spectral containment over telecommunications service lines, comprising:
- selecting a filter having predetermined spectral characteristics corresponding to a predetermined passband;
- connecting the filter in series to and between two ends of at least one loop used to provide at least one telecommunications service to a customer;
- and
- packaging said filter within a spectrum protector coil that interfaces with a housing that houses a loop modification unit filter.
An apparatus for providing spectral containment over telecommunications service lines, comprising:
- a filter having spectral characteristics corresponding to a predetermined passband, the filter being connected in series to and between two ends of at least one loop used to provide at least one telecommunications service to a customer, said filter preventing signals transmitted on frequencies outside of the predetermined passband over said at least one loop.
Dependencies are inferred from the claim text.