Digital signal processing device and digital signal...

Details Digital signal processing device and digital signal... Digital signal processing device and digital signal...

2006-06-27

2006-06-27

Nguyen, John B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S077000, C341S155000, C375S247000

Reexamination Certificate

active

07068196

ABSTRACT:
An apparatus for processing a digital signal that generates a one-bit output signal using a delta-sigma modulation apparatus, which includes a quantizer for quantizing an integrated output of a sixth integrator to generate a one-bit output signal that is send to respective integrators through an adder under feedback processing to output the one-bit output signal to the outside of a six-order Delta-sigma modulator, and a control unit for generating a control signal that controls the feedback loop signal from the quantizer so as to change the signal level of a signal component of the audio frequency band of the one-bit output signal. The control unit receives an integrated output from a second integrator being an input side integrator of the six-order delta-sigma modulator.

REFERENCES:
patent: 5793316 (1998-08-01), Noguchi et al.
patent: 5859603 (1999-01-01), Noguchi et al.
patent: 6064700 (2000-05-01), Noguchi et al.
patent: 6600789 (2003-07-01), Lipasti et al.
patent: 0735461 (1996-10-01), None
patent: 0783207 (1997-07-01), None

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