Audio codec adapted to dual bit-streams and methods for use...

Details Audio codec adapted to dual bit-streams and methods for use... Audio codec adapted to dual bit-streams and methods for use...

2007-06-12

2007-06-12

Nguyen, Khai M. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S141000, C341S143000, C381S080000, C381S081000, C381S123000, C704S003000

Reexamination Certificate

active

11344275

ABSTRACT:
A audio codec includes a first analog to digital converter for producing a first one-bit data stream, a second one-bit data stream is received from a digital microphone. A selection module produces a one-bit output signal that is the first one-bit data stream when a selection signal is in a first state, and produces a the one-bit output signal that is the second one-bit data stream when the selection signal is in a second state. A decimation and filter module produces a down sampled signal based on the one-bit output signal.

REFERENCES:
patent: 5768316 (1998-06-01), Sogo
patent: 6157726 (2000-12-01), Carroll et al.
patent: 6157727 (2000-12-01), Rueda
patent: 6658310 (2003-12-01), Kamiya
patent: 6813363 (2004-11-01), Vonlanthen
patent: 6895098 (2005-05-01), Allegro et al.
patent: 2006/0083388 (2006-04-01), Rothschild
patent: 2006/0222186 (2006-10-01), Paige et al.

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