Noise-shapers and filters with noise shaping quantizers and...

Details Noise-shapers and filters with noise shaping quantizers and... Noise-shapers and filters with noise shaping quantizers and...

2007-05-01

2007-05-01

Tran, Sinh (Department: 2615)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C341S143000

Reexamination Certificate

active

10397556

ABSTRACT:
A noise shaping system including an inner loop and outer noise shaping loops. The inner noise shaping loop includes an inner loop filter and a quantizer for quantizing an output of the inner loop filter. The outer noise shaping loop includes an outer loop filter having an input receiving feedback from the quantizer of the inner noise shaping loop and an output driving an input of the inner loop filter of the inner noise shaping loop.

REFERENCES:
patent: 5068661 (1991-11-01), Kaneaki et al.
patent: 5311181 (1994-05-01), Ferguson et al.
patent: 5598158 (1997-01-01), Linz
patent: 5757299 (1998-05-01), Noro et al.
patent: 5821889 (1998-10-01), Miller
patent: 2003/0201922 (2003-10-01), Dagher et al.

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