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US 2010/0142652 A1Published application
Demodulator with signal preconditioner
AssigneeBeken Corporation
InventorsDawei Guo, Ronghui Kong
Life of this patent
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Abstract
A method and apparatus for demodulating an input signal, for example, in a communications system, is disclosed. The apparatus includes a signal preconditioner and a demodulator. The signal preconditioner may include a low-pass filter and a hysteretic comparator that are configured to precondition a preconditioner input signal to provide a preconditioner output signal. The modulator may be configured to demodulate the preconditioner output signal.
Claims20
An apparatus for demodulating a signal, comprising:
- a signal preconditioner configured to receive a preconditioner input signal and to provide a preconditioner output signal based on a filtration of the preconditioner input signal into a filter output signal and a comparison of the filter output signal to one or more preconditioner references;
- and
- a demodulator configured to receive the preconditioner output signal and to provide a demodulator output signal by demodulating the preconditioner output signal.
A method of demodulating a signal, comprising:
- receiving a preconditioner input signal;
- providing a preconditioner output signal from the preconditioner input signal, including:
- filtering the preconditioner input signal into a filter output signal;
- and
- comparing the filter output signal to one or more preconditioner references;
- and
- demodulating a demodulator output signal from the preconditioner output signal.
4 more elements
An apparatus for demodulating a signal, comprising:
- means for receiving a preconditioner input signal;
- means for providing a preconditioner output signal from the preconditioner input signal, including:
- means for low-pass filtering the preconditioner input signal into a filter output signal;
- and
- means for hysteretically comparing the filter output signal to one or more preconditioner references;
- and
- means for demodulating a demodulator output signal from the preconditioner output signal.
4 more elements
Dependencies are inferred from the claim text.