Mikhail Y Yagunov

20070036342, Feb 15, 2007

Aug 5, 2005

11/198080

Marc Boillot - Plantation FL, US
Jason Mclntosh - Weston FL, US
Mikhail Yagunov - Pompano Beach FL, US

H04M 9/08

379406010

The invention concerns a system () and method () for operation of a voice activity detector (). The system can include a speaker (), a first microphone () and a second microphone () in which the first microphone and the second microphone can capture acoustic output from the speaker. The system can also include an adaptive module () in which the first microphone and the second microphone can provide signals to the adaptive module, and the adaptive module can provide an input to the voice activity detector. The adaptive module can receive a first input () from the first microphone and a second input () from the second microphone and can attempt to determine () a transformation between the first and second inputs for setting a configuration of the voice activity detector.

20070140058, Jun 21, 2007

Nov 21, 2005

11/283616

Jason McIntosh - Weston FL, US
Peter Pavlov - Plantation FL, US
Mikhail Yagunov - Pompano Beach FL, US

Motorola, Inc. - Schaumburg IL

B06B 1/06

367140000

The embodiments of the invention concern a method () and system () for modeling transducer non-linearities. The method can include converting () a transducer signal to a displacement signal that is proportional to a transducer cone displacement, and applying () a correction to the displacement signal. The transducer signal can be one of an input signal to the transducer () or an acoustic output signal of the transducer. The method can account for at least one mechanical transducer non-linearity which can be a cone excursion, a diaphragm stiffness, or a diaphragm displacement. The method can account for at least one acoustic transducer non-linearity which can account for an acoustic jetting out of a port. The system can further include a sensor coupled to said transducer for physically measuring a cone displacement.

20070165761, Jul 19, 2007

Nov 29, 2005

11/292499

Mikhail Yagunov - Pompano Beach FL, US
Charbel Khawand - Miami FL, US

Motorola, Inc. - Schaumburg IL

H04L 7/00

375372000

A sampling rate converter () is provided. The system can include a data buffer (), a processor () for processing data in the buffer (), and a plurality of sampling rate lines for configuring the processor. For example, the input signal can have an input sampling frequency corresponding to a first sampling rate line () and an output signal having an output sampling frequency corresponding to a second sampling rate line (). The processor () can convert the input samples corresponding to the first sampling rate to output samples corresponding to the second sampling rate using a single filter (). The first line () can include approximate sampling rates of 8 kHz, 16 kHz, 32 kHz, and 64 kHz; the second line () can include approximate sampling rates of 12 kHz, 48 kHz, and 96 kHz; and the third line () can include approximate sampling rates of 11.025 kHz, 22.05 kHz, and 44.1 kHz.

20080037451, Feb 14, 2008

Jul 28, 2006

11/460790

Mikhail U. Yagunov - Pompano Beach FL, US
Pratik V. Desai - Boca Raton FL, US

MOTOROLA, INC. - Schaumburg IL

H04B 3/20

370289

A method and a system for implementing echo cancellation. The method () can include, on a first communication device (), generating an acoustic signal () corresponding to an audio signal () received from a second communication device. Responsive to receiving a portion of the acoustic signal and detecting it is clipped, filter coefficient adaptation in an echo cancellation system () can be neutralized. For example, filter coefficients can be maintained at previous values, a control signal () that indicates zero error can be provided to an adaptive algorithm () that generates filter coefficients (), a control signal can be provided that indicates to the adaptive algorithm to halt automatic updating of the filter coefficients that are generated, or a control signal can be provided that indicates to an adaptive filter () to halt automatic updating of the filter coefficients that are processed.

20080144858, Jun 19, 2008

Dec 13, 2006

11/610155

Charbel Khawand - Miami FL, US
Mikhail U. Yagunov - Pompano Beach FL, US

MOTOROLA, INC. - Schaumburg IL

H03G 5/00

381 99

An audio processor () receives a non-priority audio signal () and a priority audio signal (). The priority audio signal occupies a frequency band (). The audio processor filters () the non-priority audio signal by suppressing frequency content in the same frequency region occupied by the priority signal, creating a filtered non-priority signal (). The filtered non-priority signal and the priority signal are combined () and played over an audio transducer ().