SYSTEM FOR THE SELECTION OF AT LEAST ONE FREQUENCY CHANNEL IN AN INPUT SIGNAL, CORRESPONDING RECEIVER AND INTEGRATED CIRCUIT
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Aug 8, 2024
filing date -
Aug 8, 2024
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Abstract
A system is proposed for the selection of at least one frequency channel in an input signal. The system comprises: a gain block delivering H currents proportional to the input signal through a gain factor; and N processing paths for processing the currents. Each path comprises: one capacitor; and H branches, each branch being configured to provide, to the capacitor, a respective current, the H branches being configured for having the gain factors of the currents successively provided to the capacitor over a period TLO that are representative of a respective sampled waveform which is the H first samples of a circular permutation of a sampled pattern obtained by time shift by a multiple of a sampling period TLO/N. Each path comprises a reset switch, implemented in parallel of the capacitor, for resetting the voltage across the capacitor once per period TLO.
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