Continuous-time image-reject filter with discrete-time feedback

Details Continuous-time image-reject filter with discrete-time feedback Continuous-time image-reject filter with discrete-time feedback

2011-08-16

2011-08-16

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S144000, C341S118000, C341S120000

Reexamination Certificate

active

07999709

ABSTRACT:
Apparatus are provided for converting a discrete-time analog signal to a continuous-time analog signal. A module comprises a digital-to-analog converter and a filtering arrangement coupled between the digital-to-analog converter and an output node. The digital-to-analog converter converts a digital signal to a discrete-time analog signal. The filtering arrangement comprises a forward signal arrangement having an input configured to receive the discrete-time analog signal and a feedback signal arrangement coupled to the forward signal arrangement. The feedback signal arrangement generates a discrete-time feedback signal at the input of the forward signal arrangement based on one or more continuous-time analog signals from the forward signal arrangement. The forward signal arrangement generates the continuous-time analog output signal at the output node based on a difference between the discrete-time analog signal and the discrete-time feedback signal.

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