PCM-to-PWM converter

Details PCM-to-PWM converter PCM-to-PWM converter

2008-01-08

2008-01-08

Kim, Kevin (Department: 2611)

Pulse or digital communications

Pulse width modulation

C332S109000, C370S205000, C341S053000

Reexamination Certificate

active

07317758

ABSTRACT:
The invention relates to a method and a device for converting a digital, pulse-coded signal (PCM) to a pulse-width-modulated signal (PWM), wherein the digital signal PCM, f(t) is multiplied by at least one derivative (f′(t), f″(t), . . . , f(n)(t)) of the signal (f(t)). The invention also relates to a technique for converting a digital pulse-coded signal (PCM) to a pulse-width-modulated signal (PWM), wherein to obtain a sampling rate sufficient for the pulse-width-modulated signal an oversampling of the digital signal is implemented with a first oversampling factor before the conversion and an second oversampling factor after the conversion, such that the product of the oversampling factors before and after conversion of the digital signal to the pulse-width-modulated signal corresponds at least to the value of the required oversampling factor.

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