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US 7,249,008 B2Granted
Arrangement for runtime compensation of a runtime difference arising through emulation of a high frequency signal
AssigneeNokia Siemens Networks Oy
InventorsBjörn Jelonnek, Armin Splett
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Abstract
An arrangement for runtime compensation of a runtime difference, arising through emulation of a high frequency signal, is disclosed, with a signal x(t), for emulation by a signal processing device, which emulates the signal x(t) with a signal x(t) and a device for determining a difference signal between the signals x(t) and x(t). The arrangement is characterized in that the emulated signal x(t) is conducted via filter with a negative group runtime for certain frequency ranges.
Claims17
A system for runtime compensation of a runtime difference produced by emulating a high-frequency signal, comprising:
- a transfer unit which receives an input signal and produces an output signal x(t);
- a signal processing unit, which receives the output signal x(t) and emulates the signal x(t) by producing an emulated signal {circumflex over (x)}(t), the signal processing unit causing the runtime difference;
- a difference unit to determine a difference signal between the signals x(t) and {circumflex over (x)}(t);
- and
- a filter through which the emulated signal {circumflex over (x)}(t) is routed, the filter being connected between the signal processing unit and the difference unit to filter the emulated signal {circumflex over (x)}(t) before the emulated signal {circumflex over (x)}(t) is fed to the difference unit the filter having a negative group runtime in a certain frequency range.
2 more elements
Dependencies are inferred from the claim text.