Automatic microphone detection

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices

Reexamination Certificate

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Details

C704S246000

Reexamination Certificate

active

07039193

ABSTRACT:
Whether a microphone is connected to a real-time audio communication system of a computer may be detected by recording an audio sample through the real-time audio communication system, filtering a DC component is filtered out of the audio data, recognizing a pattern in the auto-correlation coefficients of the filtered audio sample, and determining whether a microphone is properly connected to the real-time audio communication system based on the values of the auto-correlation function coefficients and the predetermined values.

REFERENCES:
patent: 4028496 (1977-06-01), LaMarche et al.
patent: 4700392 (1987-10-01), Kato et al.
patent: 4975657 (1990-12-01), Eastmond
patent: 5574824 (1996-11-01), Slyh et al.
patent: 5717656 (1998-02-01), Dourbal
patent: 5825771 (1998-10-01), Cohen et al.
patent: 6049565 (2000-04-01), Paradine et al.
patent: 6070140 (2000-05-01), Tran
patent: 6418203 (2002-07-01), Marcie
patent: 6473629 (2002-10-01), Chang
patent: 6594363 (2003-07-01), Kim
patent: 6661793 (2003-12-01), Pogrebinsky
patent: 6744764 (2004-06-01), Bigdeliazari et al.
patent: 6760454 (2004-07-01), Shreve et al.
patent: 6820054 (2004-11-01), Erell et al.
patent: 6826284 (2004-11-01), Benesty et al.
patent: 6876970 (2005-04-01), Silver et al.
patent: 0921666 (1999-06-01), None
patent: 0987894 (2000-03-01), None
patent: WO9522233 (1995-08-01), None
J.S. Erkelens and P.M.T . Broersen, “Bias Propagation in the Autocorrelation Method of Linear Prediction”, IEEE Trans. on Speech and Audio, vol. 5, pp. 116-119, 1997.
Itakura, F.; Saito, S.; Koike, T.; Sawabe, H.; Nishikawa, M.; “An Audio Response Unit Based on Partial Autocorrelation” Communications, IEEE Transactions on [legacy, pre—1988], vol.: 20 , Issue: 4 , Aug 1972, pp. 792-797.
Jan Erkelens and Piet Broersen; Bias Propagation in the Autocorrelation Method of Linear Prediction; IEEE Transactions on Speech and Audio Processing vol 5, No 2, Mar 1997.
Fumitada Itakura et al; An Audio Response Unit Based on Partial Autocorrelation; IEE Transactions on Communications VBol com-20, No 4, Aug. 1972.

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