Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2005-08-16
2005-08-16
Lee, Ping (Department: 2644)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
C704S226000, C381S094300
Reexamination Certificate
active
06931292
ABSTRACT:
A method and system for reducing the undesirable noise in a communication signal is provided. Designed specifically to address the problem of telephone communications where the desired speech signal is contaminated by background noise, this invention employs digital signal processing of the communication signal to selectively emphasize, buffer, amplify, and smooth the components of the signal, thereby enhancing the signal quality (signal to noise ratio) of the presented communication signal.
REFERENCES:
patent: 4061875 (1977-12-01), Freifeld et al.
patent: 4630302 (1986-12-01), Kryter
patent: 4811404 (1989-03-01), Vilmur et al.
patent: 4985925 (1991-01-01), Langberg et al.
patent: 5036540 (1991-07-01), Eastmond
patent: 5179623 (1993-01-01), Dickopp et al.
patent: 5402496 (1995-03-01), Soli et al.
patent: 5490233 (1996-02-01), Kovacevic
patent: 5640490 (1997-06-01), Hansen et al.
patent: 5749064 (1998-05-01), Pawate et al.
patent: 5848171 (1998-12-01), Stockham, Jr. et al.
patent: 5970441 (1999-10-01), Mekuria
patent: 6363345 (2002-03-01), Marash et al.
patent: WO 89/06877 (1989-07-01), None
patent: WO 95/25382 (1995-09-01), None
Brumitt Marcia R.
Turnbull James M.
Jabra Corporation
Lee Ping
Sadler Lloyd W.
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