Communication circuitry, devices and methods
AssigneeLantiq Deutschland GmbH
InventorStefan Uhlemann
Life of this patent
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Abstract
A method of signal communication includes receiving a selection signal, and selecting a selected frequency range used for a multi-carrier signal communication from a set of predetermined frequency ranges for signal communication depending on the selection signal. The set of predetermined frequency ranges includes a first frequency range and a second frequency range including the first frequency range.
Claims33
A method of signal telecommunication, comprising:
- receiving a selection signal;
- selecting, with circuitry, a selected frequency range used for a signal telecommunication from a set of predetermined frequency ranges for signal telecommunication depending on the selection signal, wherein the set of predetermined frequency ranges comprises a first frequency range and a second frequency range comprising the first frequency range;
- detecting whether a splitter device is connected to a communication line used for the signal telecommunication;
- and
- forming the selection signal based on the result of the detection.
A method of signal telecommunication, comprising:
- receiving a selection signal;
- detecting whether a splitter for partitioning a frequency range useable on a communication line used for the signal telecommunication is present;
- adjusting a corner frequency of a filter in a signal path for the signal telecommunication depending on the selection signal and the detecting;
- and
- limiting, with the filter, a frequency range used for the signal telecommunication based on the corner frequency.
A circuit configured for signal telecommunication, the circuit comprising:
- a connector configured to couple to a communication line for the signal telecommunication;
- an adjustable filter having a switchable corner frequency;
- and
- a control circuit coupled to the adjustable filter, the control circuit configured to detect whether a splitter is connected to the communication line and switch the corner frequency based on the detection to determine a frequency range for the signal telecommunication.
A linecard comprising:
- signal telecommunication circuitry, the circuitry comprising:
- a connector configured to couple to a communication line for the signal telecommunication;
- an adjustable filter having a switchable corner frequency;
- and
- a control circuit coupled to the adjustable filter, the control circuit configured to detect whether a splitter is connected to the communication line and switch the corner frequency based on the detection to determine a frequency range for the signal telecommunication.
A device for signal telecommunication, the device comprising:
- means for detecting whether a splitter for partitioning a frequency range usable on a communication line used for the signal telecommunication is present;
- and
- means for switching a corner frequency of a filter in a signal path for the signal telecommunication depending on a selection signal and the detecting, wherein the corner frequency limits a frequency range used for the signal telecommunication.
A device configured to detect the presence of a splitter, wherein the splitter has a predetermined frequency to separate signals, the device comprising:
- an impedance meter;
- and
- a control circuit coupled to the impedance meter and configured to provide a measure of a first impedance on a communication line used for signal telecommunication at a first frequency below the predetermined frequency, provide a measure of a second impedance on the communication line at a second frequency above the predetermined frequency, provide information whether a splitter is present based on the first impedance and the second impedance, and adjust a corner frequency of a filter based on the information whether a splitter is present to determine a frequency range for the signal telecommunication.
Dependencies are inferred from the claim text.