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US 2002/0177430 A1Published application
Circuit configuration for metering pulse recognition
AssigneeInfineon Technologies AG
InventorsLukas Dorrer, Bernd Krah, Christian Kranz
Life of this patent
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Abstract
A circuit configuration for metering pulse recognition includes an A/D converter that receives a signal containing metering pulses, and a digital comparator circuit for comparing the output signal from the A/D converter with a reference value. A detector unit evaluates the output signal from the comparator circuit. This means that an analog comparator can be dispensed with, and the chip area and the development complexity can be reduced.
Claims18
A circuit configuration for metering pulse recognition, comprising:
- an input for obtaining a signal containing metering pulses of a particular frequency and a particular amplitude;
- an A/D converter circuit connected to said input for obtaining the signal containing the metering pulses of the particular frequency and the particular amplitude;
- and
- a detection device for recognizing and counting the metering pulses of the particular frequency and the particular amplitude;
- said A/D converter circuit providing an output signal;
- said detection device including a digital comparator circuit for performing a comparison of the output signal from said A/D converter circuit with a reference value and for providing an output signal dependent upon the comparison;
- and
- said detection device including a detector unit for evaluating the output signal from said digital comparator circuit.
5 more elements
A method of metering pulse recognition in a mobile radio base station, which comprises:
- providing a circuit configuration to perform the metering pulse recognition, the circuit configuration including:
- an input for obtaining a signal containing metering pulses of a particular frequency and a particular amplitude,
- an A/D converter circuit connected to the input for obtaining the signal containing the metering pulses of the particular frequency and the particular amplitude, and
- a detection device for recognizing and counting the metering pulses of the particular frequency and the particular amplitude,
- the A/D converter circuit providing an output signal,
- the detection device including a digital comparator circuit for performing a comparison of the output signal from the A/D converter circuit with a reference value and for providing an output signal dependent upon the comparison, and
- the detection device including a detector unit for evaluating the output signal from the digital comparator circuit;
- and
- using the circuit configuration to perform the metering pulse recognition in a mobile radio base station.
6 more elements
Dependencies are inferred from the claim text.