Nicholas C Fisher

US Patent:

20140037095, Feb 6, 2014

Filed:

Sep 27, 2013

Appl. No.:

14/040418

Inventors:

Daniel S. GOLDIN - Malibu CA, US
Robert N. HILTON - San Diego CA, US
Nicholas K. FISHER - San Diego CA, US
Rodney GATEAU - San Diego CA, US
Derrick R. ROOS - San Diego CA, US
Eric WIEWIORA - San Diego CA, US

Assignee:

THE INTELLISIS CORPORATION - SAN DIEGO CA

International Classification:

H04R 29/00

US Classification:

381 56

Abstract:

A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio signal, may reconstruct sound represented in the audio signal, and/or may segment or classify the audio signal. A transform may be performed on the audio signal to place the audio signal in a frequency chirp domain that enhances the sound parameter tracking, reconstruction, and/or classification.

US Patent:

20150120285, Apr 30, 2015

Filed:

Jan 9, 2015

Appl. No.:

14/593238

Inventors:

- San Diego CA, US
Daniel S. GOLDIN - Malibu CA, US
Robert N. HILTON - San Diego CA, US
Nicholas K. FISHER - San Diego CA, US
Rodney GATEAU - San Diego CA, US

Assignee:

The Intellisis Corporation - San Diego CA

International Classification:

G10L 19/00

US Classification:

704203

Abstract:

A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics.

US Patent:

20150112688, Apr 23, 2015

Filed:

Dec 22, 2014

Appl. No.:

14/579197

Inventors:

- San Diego CA, US
Daniel S. GOLDIN - Malibu CA, US
Robert N. HILTON - San Diego CA, US
Nicholas K. FISHER - San Diego CA, US
Rodney GATEAU - San Diego CA, US

Assignee:

THE INTELLISIS CORPORATION - San Diego CA

International Classification:

G10L 13/00

US Classification:

704265

Abstract:

A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics.

US Patent:

20140376727, Dec 25, 2014

Filed:

Jun 30, 2014

Appl. No.:

14/320556

Inventors:

- San Diego CA, US
Daniel S. GOLDIN - Malibu CA, US
Robert N. HILTON - San Diego CA, US
Nicholas K. FISHER - Los Angeles CA, US
Rodney GATEAU - San Diego CA, US
Derrick R. Roos - San Diego CA, US
Eric WIEWIORA - San Diego CA, US

International Classification:

H04R 29/00

US Classification:

381 56

Abstract:

A system and method are provided for processing sound signals. The processing may include identifying individual harmonic sounds represented in sound signals, determining sound parameters of harmonic sounds, classifying harmonic sounds according to source, and/or other processing. The processing may include transforming the sound signals (or portions thereof) into a space which expresses a transform coefficient as a function of frequency and chirp rate. This may facilitate leveraging of the fact that the individual harmonics of a single harmonic sound may have a common pitch velocity (which is related to the chirp rate) across all of its harmonics in order to distinguish an the harmonic sound from other sounds (harmonic and/or non-harmonic) and/or noise.