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US 7,746,256 B2Granted
Analog to digital conversion using irregular sampling
AssigneeInfineon Technologies AG
InventorsAndreas Wiesbauer, Lajos Gazsi
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Abstract
This disclosure relates to analog to digital conversion using irregular sampling.
Claims21
An Analog to Digital Converter (ADC) comprising:
- a Asynchronous Delta-Sigma Modulator (ADSM) that modulates an analog signal into a modulated signal;
- and
- a Time to Digital Converter (TDC) and Irregular Sampler that samples the modulated signal at non-equidistant sample values, and outputs a time-discrete non-equidistant signal, wherein the time-discrete non-equidistant signal is not dependent on a clock input.
An apparatus comprising:
- an Analog to Digital Converter (ADC) that converts an analog signal into a digital signal, by modulating the analog signal into a modulate signal, by converting amplitude information of the analog signal into continuous time information, sampling at irregular asynchronous intervals the modulated signal, and reconstructing the analog signal into a digital signal based on the modulated analog signal;
- and
- a digital modulator that modulates the digital signal.
A method for signal conversion, comprising:
- receiving a band limited analog signal;
- converting amplitude of the band limited analog signal to time, wherein a time based signal is generated;
- generating irregular samples taken at non-equidistant time intervals of the time based signal;
- and
- reconstructing a digital signal representation of the band limited analog signal based on the generated irregular samples.
2 more elements
Dependencies are inferred from the claim text.