Continuous-time digital signal generation, transmission,...

Details Continuous-time digital signal generation, transmission,... Continuous-time digital signal generation, transmission,...

2007-11-20

2007-11-20

Nguyen, Khai M. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000, C341S158000

Reexamination Certificate

active

11244795

ABSTRACT:
A method of digitally processing an analog signal in continuous time includes producing a continuous-time digital signal from an analog signal via a technique that does not include periodic sampling, then producing one or more delayed versions of the continuous-time digital signal. Each delayed version is delayed by nT, where n is an integer greater than zero, and T is a delay interval. The method further includes multiplying the continuous-time digital signal and each of the delayed versions by one or more associated coefficients, so as to produce a set of products, then adding the set of products, so as to produce a sum value corresponding to the analog signal processed by a transfer function defined by the associated coefficients. The individual bit paths of the continuous-time digital signal are multiplied by the coefficients, and the resulting products are combined by a binary-weighted adder.

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patent: 6198421 (2001-03-01), Doyle et al.
patent: 6597302 (2003-07-01), Nagaraj et al.
patent: 6677569 (2004-01-01), Beusch
patent: 7132972 (2006-11-01), Tsividis

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