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.
Claims34
A method of signal communication, comprising:
- 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, wherein the set of predetermined frequency ranges comprises a first frequency range and a second frequency range comprising the first frequency range.
A method of signal communication, comprising:
- receiving a selection signal;
- adjusting a corner frequency of a filter in a signal path for the signal communication depending on the selection signal;
- and
- limiting, with the filter, a frequency range used for the signal communication based on the corner frequency.
A circuit configured for signal communication, the circuit comprising:
- a connector configured to couple to a communication line for the signal communication;
- an adjustable filter having a switchable corner frequency;
- and
- a control circuit coupled to the adjustable filter, the control circuit configured to switch the corner frequency to determine a frequency range for the signal communication.
A linecard comprising:
- signal communication circuitry, the circuitry comprising:
- a connector configured to couple to a communication line for the signal communication;
- an adjustable filter having a switchable corner frequency;
- and
- a control circuit coupled to the adjustable filter, the control circuit configured to switch the corner frequency to determine a frequency range for the signal communication.
A device for signal communication, the device comprising:
- means for switching a corner frequency of a filter in a signal path for the signal communication depending on a selection signal, wherein the corner frequency limits a frequency range used for the signal communication.
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 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, and provide information whether a splitter is present based on the first impedance and the second impedance.
Dependencies are inferred from the claim text.