Method for generating a signal pulse sequence with a predetermined stable fundamental frequency
AssigneeInfineon Technologies AG
InventorMarkus Waldner
Life of this patent
Estimating the term…
Abstract
A method for generating a signal pulse sequence with a predetermined stable fundamental frequency from a sequence of signal pulses whose frequency fluctuates and has the spectral components whose frequency is at least a predetermined multiple of the fundamental frequency. The method includes, feeding the sequence of signal pulses to a digital filter, arranging a passband of the digital filter around the fundamental frequency, blocking, using the digital filter, around a predetermined half the sampling frequency. The method further includes outputting a signed output signal when the digital filter is excited, and generating a clock signal pulse for each change in sign of the output signal.
Claims9
A method for generating a signal pulse sequence with a predetermined stable fundamental frequency from a sequence of signal pulses whose frequency fluctuates and has the spectral components whose frequency is at least a predetermined multiple of the fundamental frequency, the method comprising
- feeding the sequence of signal pulses to a digital filter;
- arranging a passband of the digital filter around the fundamental frequency;
- blocking, using the digital filter, around a predetermined half the sampling frequency;
- outputting a signed output signal when the digital filter is excited;
- generating a clock signal pulse for each change in sign of the output signal.
Dependencies are inferred from the claim text.