IP Library Granted Patent US 7,058,190
Granted Patent B1
US 7,058,190 · App. 09/576,656 · Granted Jun 6, 2006

Acoustic signal enhancement system

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Quick Facts
Patent No.
US 7,058,190
App. No.
09/576,656
Granted
Jun 6, 2006
Kind
B1
Abstract

System and method for automatically measuring and monitoring the quality of acoustic data is disclosed. The system also provides suggestions for corrective actions to the system or user. The method monitors the quality of data and provides feedback to the system or user for corrective actions. The quality of data includes a combination of either a signal clipping detector, a microphone ON/OFF detector, an air puff detector, and a low signal-to-noise ratio detector.

Claims (22)

1. A product comprising:

a machine readable medium; and

a program encoded on the medium which causes a processor in an acoustic signal monitoring system to:

receive an acoustic signal from a microphone;

analyze time series data obtained from the acoustic signal to determine whether the microphone is ‘on’ or whether the microphone is ‘off’;

transform the acoustic signal into a frequency domain signal;

determine undesirable microphone placement by:

determining whether the microphone is too close to a user by detecting an air puff based on the frequency domain signal;

determining a signal-to-noise ratio of the frequency domain signal; and

determining whether the microphone is too far from the user based on the signal-to-noise ratio; and

reporting to a user, through a user display, whether the microphone is too close or too far, and whether the microphone is ‘on’ or ‘off’.

2. The product of claim 1 , where reporting includes suggesting an action for the user to take to correct for the undesirable microphone placement.

3. The product of claim 2 , where the action is at least one of: ‘talk louder’, ‘move the microphone closer’, ‘move somewhere less noisy’, or ‘put on a headset microphone’.

4. The product of claim 1 , where the program further causes the processor to:

determine a RMS value of the acoustic signal; and

compare the RMS value to a threshold to determine whether the microphone is ‘on’ or ‘off’.

5. The product of claim 1 , where the program further causes the processor to:

detect clipping of the acoustic signal; and

report the clipping to the user through the user display.

6. The product of claim 1 , where the processor continuously determines whether the microphone is ‘on’ or ‘off’.

7. The product of claim 1 , where the processor continuously determines undesirable microphone placement.

8. The product of claim 1 , where the processor continuously determines undesirable microphone placement and whether the microphone is ‘on’ or ‘off’.

Assignments (12)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2020
From: 2236008 ONTARIO INC.
To: BLACKBERRY LIMITED
Reel/Frame 053313/0315 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2014
From: 8758271 CANADA INC.
To: 2236008 ONTARIO INC.
Reel/Frame 032607/0674 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2014
From: QNX SOFTWARE SYSTEMS LIMITED
To: 8758271 CANADA INC.
Reel/Frame 032607/0943 →
CHANGE OF NAME Recorded Feb 27, 2012
From: QNX SOFTWARE SYSTEMS CO.
To: QNX SOFTWARE SYSTEMS LIMITED
Reel/Frame 027768/0863 →
CONFIRMATORY ASSIGNMENT Recorded Jul 9, 2010
From: QNX SOFTWARE SYSTEMS (WAVEMAKERS), INC.
To: QNX SOFTWARE SYSTEMS CO.
Reel/Frame 024659/0370 →
PARTIAL RELEASE OF SECURITY INTEREST Recorded Jun 3, 2010
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED; QNX SOFTWARE SYSTEMS (WAVEMAKERS), INC.; QNX SOFTWARE SYSTEMS GMBH & CO. KG
Reel/Frame 024483/0045 →
SECURITY AGREEMENT Recorded May 8, 2009
From: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED; BECKER SERVICE-UND VERWALTUNG GMBH; CROWN AUDIO, INC.; HARMAN BECKER AUTOMOTIVE SYSTEMS (MICHIGAN), INC.; HARMAN BECKER AUTOMOTIVE SYSTEMS HOLDING GMBH; HARMAN BECKER AUTOMOTIVE SYSTEMS, INC.; HARMAN CONSUMER GROUP, INC.; HARMAN DEUTSCHLAND GMBH; HARMAN FINANCIAL GROUP LLC; HARMAN HOLDING GMBH & CO. KG; HARMAN MUSIC GROUP, INCORPORATED; HARMAN SOFTWARE TECHNOLOGY INTERNATIONAL BETEILIGUNGS GMBH; HARMAN SOFTWARE TECHNOLOGY MANAGEMENT GMBH; HBAS INTERNATIONAL GMBH; HBAS MANUFACTURING, INC.; INNOVATIVE SYSTEMS GMBH NAVIGATION-MULTIMEDIA; JBL INCORPORATED; LEXICON, INCORPORATED; MARGI SYSTEMS, INC.; QNX SOFTWARE SYSTEMS (WAVEMAKERS), INC.; QNX SOFTWARE SYSTEMS CANADA CORPORATION; QNX SOFTWARE SYSTEMS CO.; QNX SOFTWARE SYSTEMS GMBH; QNX SOFTWARE SYSTEMS GMBH & CO. KG; QNX SOFTWARE SYSTEMS INTERNATIONAL CORPORATION; QNX SOFTWARE SYSTEMS, INC.; XS EMBEDDED GMBH (F/K/A HARMAN BECKER MEDIA DRIVE TECHNOLOGY GMBH)
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 022659/0743 →
CHANGE OF NAME Recorded Nov 14, 2006
From: HARMAN BECKER AUTOMOTIVE SYSTEMS - WAVEMAKERS, INC.
To: QNX SOFTWARE SYSTEMS (WAVEMAKERS), INC.
Reel/Frame 018515/0376 →
CHANGE OF NAME Recorded Sep 24, 2003
From: 36459 YUKON, INC.
To: HARMAN BECKER AUTOMOTIVE SYSTEMS - WAVEMAKERS, INC
Reel/Frame 014524/0617 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2003
From: WAVEMAKERS INC.
To: 36459 YUKON INC.
Reel/Frame 014524/0639 →
CHANGE OF NAME Recorded Jun 4, 2003
From: WAVEMAKERS RESEARCH INC.
To: WAVEMAKERS INC.
Reel/Frame 014151/0569 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2000
From: ZAKARAUSKAS, PIERRE; SONES, RICHARD; REMPEL, ROD; LINSEISEN, FRANK
To: WAVEMAKER RESEARCH, INC.
Reel/Frame 011110/0038 →