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US 7,680,476 B2Granted
Receiving device
AssigneeInfineon Technologies AG
InventorGünther Tränkle
Life of this patent
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Abstract
A receiving device having an input receiving an input signal which includes a useful signal and an interference signal, a demodulator coupled to the input and generating a demodulated output signal from the input signal, which has an adjustable operating point, and a detector coupled to the demodulator and determining from the output signal a characteristic value representing a power level of the interference signal and setting the operating point of the demodulator as a function of the characteristic value.
Claims17
A receiving device, comprising:
- an input for receiving an input signal which comprises a useful signal and an interference signal,
- a demodulator coupled to the input and configured to generate a demodulated output signal from the input signal,
- a detector coupled to the demodulator, the detector comprising a high-pass filter configured to select an interference signal from the output signal of the demodulator, wherein the detector is configured to determine from the selected interference signal a characteristic value representing a power level of the interference signal and to set an operating point of the demodulator as a function of the determined characteristic value, and
- a data processor coupled to the demodulator and configured to convert the output signal into a useful digital signal, the data processor being further configured to determine a characteristic number for the signal quality of the output signal from the useful digital signal.
1 more element
A receiving device, comprising:
- an input configured to receive an input signal which comprises a useful signal and an interference signal,
- a demodulator with an adjustable operating point, the demodulator being coupled to the input and configured to generate a demodulated output signal from the input signal,
- a detector coupled to the demodulator, the detector comprising a high-pass filter configured to select an interference signal from the output signal of the demodulator, wherein the detector is configured to determine from the selected interference signal a characteristic value representing a power level of the interference signal and set the operating point of the demodulator as a function of the determined characteristic value, and
- a data processor coupled to the demodulator and configured to convert the output signal into a useful digital signal and to determine a characteristic number for the signal quality of the output signal from the useful digital signal,
- wherein the data processor is coupled to the detector and the detector is further configured to adjust the operating point as a function of the characteristic number.
2 more elements
A method of adapting a dynamic range of a receiving device, the method comprising:
- receiving a received signal which exhibits a useful signal and an interference signal,
- demodulating the received signal, thereby generating a demodulated output signal from the received signal, wherein the demodulated output signal comprises the useful signal and the interference signal,
- selecting the interference signal from the demodulated output signal via a high-pass filter,
- determining a characteristic number from the interference signal which represents a power level of the selected interference signal,
- adjusting at least one limit of the dynamic range as a function of the characteristic number,
- converting the demodulated signal into a useful digital signal, and
- determining a characteristic number for the signal quality of the output signal from the useful digital signal.
4 more elements
A receiving device, comprising:
- an input configured to receive an input signal which comprises a useful signal and an interference signal,
- a demodulator with a settable operating point coupled to the input and configured to generate a demodulated output signal from the input signal,
- a detector coupled to the demodulator, the detector comprising a high-pass filter configured to select an interference signal from the output signal of the demodulator, wherein the detector is configured to determine from the selected interference signal a characteristic value representing a power level of the interference signal and to set the operating point of the demodulator as a function of the determined characteristic value, and
- a data processor coupled to the demodulator and configured to convert the output signal into a useful digital signal, the data processor being configured to determine a characteristic number for the signal quality of the output signal from the useful digital signal, wherein the demodulator includes an amplifier with a common-gate structure.
1 more element
A receiving device, comprising:
- an input for receiving an input signal which comprises a useful signal and an interference signal,
- a demodulator coupled to the input and configured to generate a demodulated output signal from the input signal,
- a detector coupled to the demodulator and configured to determine from the output signal a characteristic value representing a power level of the interference signal and to set an operating point of the demodulator as a function of the determined characteristic value, wherein the detector comprises a high-pass filter configured to select an interference signal from the output signal, and
- a data processor coupled to the demodulator and configured to convert the demodulated output signal into a useful digital signal and to determine a characteristic number for the signal quality of the demodulated output signal from the useful digital signal.
1 more element
Dependencies are inferred from the claim text.