Modulation circuit having improved performance in the audio...

Details Modulation circuit having improved performance in the audio... Modulation circuit having improved performance in the audio...

2006-05-02

2006-05-02

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S143000

Reexamination Certificate

active

07038607

ABSTRACT:
A modulator circuit receives a modulator input signal and produces a mapper output signal. The modulator circuit includes a filter circuit that generates an output that is a function of the modulator input signal and of the mapper output signal. A quantizer receives the filter output signal and produces a quantized representation of the filter output signal. A mapper receives the quantizer output and generates the mapper output signal.

REFERENCES:
patent: 4034305 (1977-07-01), Sato
patent: 5625358 (1997-04-01), Wilson et al.
patent: 6278394 (2001-08-01), May
patent: 6819725 (2004-11-01), Oliver et al.

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