Audio signal processing

Details Audio signal processing Audio signal processing

2004-06-08

2009-02-10

Vo, Huyen X. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

With content reduction encoding

C704S278000, C704S228000, C381S027000, C381S022000

Reexamination Certificate

active

07490044

ABSTRACT:
An audio system for processing two channels of audio input to provide more than two output channels. The input may be conventional stereo material or compressed audio signal data. The audio processing includes separating the input signals into frequency bands and processing the frequency bands according to processes which may differ from band to band. The audio processing includes no processing of L−R signals.

REFERENCES:
patent: 3969588 (1976-07-01), Raydon et al.
patent: 4024344 (1977-05-01), Dolby
patent: 4920569 (1990-04-01), Yoshio
patent: 4968154 (1990-11-01), Baeg
patent: 5109417 (1992-04-01), Fielder et al.
patent: 5197099 (1993-03-01), Hirasawa
patent: 5197100 (1993-03-01), Shiraki
patent: 5265166 (1993-11-01), Madnick et al.
patent: 5291557 (1994-03-01), Davis et al.
patent: 5341457 (1994-08-01), Hall, II et al.
patent: 5361278 (1994-11-01), Vaupel et al.
patent: 5459790 (1995-10-01), Scofield et al.
patent: 5497425 (1996-03-01), Rapoport
patent: 5528694 (1996-06-01), Van De Kerkhof et al.
patent: 5575284 (1996-11-01), Athan et al.
patent: 5594800 (1997-01-01), Gerzon
patent: 5671287 (1997-09-01), Gerzon
patent: 5854847 (1998-12-01), Yoshida et al.
patent: 2002/0071574 (2002-06-01), Aylward et al.
patent: WO01/62045 (2001-08-01), None
patent: WO 01/62045 (2001-08-01), None
European Search Report dated Jul. 5, 2007, issued in European Application No. 05104362.8, filed May 23, 2005.
European Search Report date Jun. 24, 2008 for European Application No. 05104362.8.
“SP-1 Spatial Sound Processor”, Spatial Sound, Inc. ((c) 1990) product speciciation.
Action and Response History in U.S. Appl. No. 08/228,125, as downloaded from PAIR, through Aug. 22, 2008.
Action and Response History in U.S. Appl. No. 08/228,125, as downloaded from PAIR, through Aug. 4, 2008.

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