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US RE44,679 E1Granted
Method and system for processing telecommunication signals
AssigneeIntellectual Ventures I LLC
InventorsMarkku Ruuskanen, Reijo Leppanen
Life of this patent
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Abstract
The present invention relates to a method and a system of implementing a signal processing facility in a digital transmission system environment. In the invention, the signal between the switching field (GSW) and the interface unit ETS1 is divided into a first (DEOS, DSOE) and second signal (DGO, DSO). The first signal is directed through the signal processing unit and the second signal past it. Either one of the signals is selected and activated depending on the need of the signal processing and the operational status of the signal processing unit; this information the interface unit gets from the control unit.
Claims27
A method for implementing signal processing in a digital transmission system comprising:
- establishing call and data connections between a switching field and at least one interface unit;
- transferring a digital signal between the switching field and the at least one interface unit along first and second parallel signal paths with the first path containing a signal processing unit;
- and
- selecting the first path to provide the digital signal to the signal processing unit for processing thereof and providing a processed first signal to the at least one interface unit when the first path is selected to be active and selecting the second path to provide the digital signal to the at least one interface unit without processing by the signal processing unit when the first path is not selected to be active;
- wherein the signal processing unit erases an unwanted echo signal present in the call and data connections so that signal strength on the call and data communications connections is adjusted or a code law of signals present in the call and data connections is transformed.
2 more elements
A system for implementing signal processing comprising:
- a switching field;
- at least one interface unit coupled to the switching field by first and second parallel signal paths, the first and second parallel signal paths, transmitting a digital signal;
- call and data connections between the switching field and the at least one interface unit;
- a signal processing unit contained in the first parallel signal path, the signal processing unit configured to erase an unwanted echo signal present in the call and data connections so that signal strength on the call and data connections is adjusted or a code law of signals present in the call and data connections is transformed;
- and
- a selector coupled to the first and second parallel signal paths for selecting the first path to provide the digital signal to the signal processing unit for processing thereof and the signal processing unit providing a processed first signal to the at least one interface unit when the first parallel signal path is selected by the selector to be active and selecting the second path to provide the digital signal to the at least one interface unit without processing by the signal processing unit when the first parallel signal path is not selected by the selector to be active.
3 more elements
A device comprising:
- a communication interface, the communication interface configured to interface with a first path and route a first signal on the first path to attenuate an echo signal present such that signal strength is adjusted or a code law of signals present is transformed, the communication interface further configured to interface with a second path and route a second signal on the second path directly to an interface unit, and wherein the communication interface is further configured to interface with the first or the second path such that the signal strength is further adjusted or the code law of signals present is further transformed in addition to that caused by the attenuation of the echo signal;
- wherein the first path and the second path are parallel signaling paths.
A device comprising:
- a communication interface, the communication interface configured to interface with a first path and, if a first signal is received on the first path, the first signal having had an echo signal present attenuated such that signal strength is adjusted or a code law of signals present is transformed, and wherein the signal strength has been further adjusted or the code law of signals present further transformed in addition to that caused by the attenuation of the echo signal, the communication interface further configured to interface with a second path and, if a second signal is received on the second path, the second signal being received directly from the at least one switching field,
- wherein the first path and the second path are parallel signaling paths.
A method comprising:
- interfacing, by a communication interface unit, with a first path and a second path, wherein the first path and the second path are parallel signal paths;
- routing, by the communication interface unit, a first signal on the first path to attenuate an echo signal present such that signal strength is adjusted or a code law of signals present is transformed;
- routing, by the communication interface unit, a second signal on the second path directly to an interface unit;
- and
- routing, by the communication interface unit, either the first or the second signal to further adjust the signal strength or to further transform the code law of signals present in addition to that caused by the attenuation of the echo signal.
2 more elements
A method comprising:
- interfacing, by a communication interface unit, with a first path and a second path, wherein the first path and the second path are parallel signal paths;
- if a first signal is received on the first path, determining, by the communication interface unit, that the first signal had an echo signal present attenuated such that signal strength is adjusted or a code law of signals present is transformed, and that the signal strength has been further adjusted or the code law of signals present further transformed in addition to that caused by the attenuation of the echo signal;
- and
- if a second signal is received on the second path, determining, by the communication interface unit, that the second signal is received directly from the at least one switching field.
1 more element
Dependencies are inferred from the claim text.