公开(公告)号：AU678953B2

公开(公告)日：1997-06-12

申请号：AU6084396

申请日：1996-08-01

Applicant: MOTOROLA INC

Inventor： GERSON IRA A ,  JASIUK MARK A ,  HARTMAN MATTHEW A

IPC: G10L19/06 ,  G10L19/083 ,  G10L19/135 ,  G10L25/06 ,  G10L25/24 ,  G10L9/08 ,  G10L9/00

公开(公告)号：DE4491015C2

公开(公告)日：1996-10-24

申请号：DE4491015

申请日：1994-01-18

Applicant: MOTOROLA INC

Inventor： GERSON IRA A ,  JASIUK MARK A ,  HARTMAN MATTHEW A

IPC: G10L19/12 ,  H03H17/00 ,  H03H17/02 ,  H03M7/30 ,  H03M7/38 ,  H04B14/04 ,  G10L5/00 ,  G10L9/14 ,  G10L9/18

公开(公告)号：FR2702075B1

公开(公告)日：1996-04-26

申请号：FR9401450

申请日：1994-02-09

Applicant: MOTOROLA INC

Inventor： GERSON IRA A ,  JASIUK MARK A ,  HARTMAN MATTHEW A

IPC: G10L19/12 ,  H03H17/00 ,  H03H17/02 ,  H03M7/30 ,  H03M7/38 ,  H04B14/04 ,  G10L9/14

公开(公告)号：CA2066568A1

公开(公告)日：1991-04-18

申请号：CA2066568

申请日：1990-09-17

Applicant: MOTOROLA INC

Inventor： GERSON IRA A ,  JASIUK MARK A

IPC: G10L19/26 ,  G10L5/00 ,  G10L9/02 ,  G10L9/14 ,  G10L9/18 ,  H04L27/00 ,  H04L27/38

Abstract: 2066568 9106091 PCTABS00005 A linear predictive coding speech synthetizer wherein an excitation signal that includes pitch information is filtered in a pitch enhancement filter (201) prior to provision of the excitation signal to an LPC filter (106). In one embodiment, the speech synthesizer is configured in a radio.

公开(公告)号：CA2037899A1

公开(公告)日：1991-03-02

申请号：CA2037899

申请日：1990-06-25

Applicant: MOTOROLA INC

Inventor： GERSON IRA A ,  JASIUK MARK A

IPC: G06F17/10 ,  G08B25/10 ,  G10L19/12 ,  G10L5/00

公开(公告)号：BRPI0820463A2

公开(公告)日：2015-06-16

申请号：BRPI0820463

申请日：2008-10-09

Applicant: MOTOROLA INC

Inventor： RAMABADRAN TENKASI V ,  JASIUK MARK A

IPC: G01L21/02

公开(公告)号：MX2010005679A

公开(公告)日：2010-06-02

申请号：MX2010005679

申请日：2008-10-09

Applicant: MOTOROLA INC

Inventor： JASIUK MARK A ,  RAMABADRAN TENKASI V

IPC: G01L21/02

Abstract: Se proporciona (101) una señal de audio digital que tiene un ancho de banda de señal correspondiente, y después se proporciona (102) un valor de energía que corresponde al menos a un estimado de energía de ancho de banda fuera-de-señal como corresponde a esa señal de audio digital; después se utiliza (103) el valor de energía para determinar simultáneamente tanto una forma de envoltura espectral como una energía conveniente correspondiente para la forma de envoltura espectral para contenido de ancho de banda fuera-de-señal como corresponde a la señal de audio digital; por medio de un enfoque, si así se desea, entonces se combina (104) (por ejemplo, sobre una base cuadro por cuadro) la señal de audio digital con el contenido de ancho de banda fuera-de-señal para proporcionar una versión extendida de ancho de banda de la señal de audio digital para que sea entregada de manera audible y así mejorar la calidad de audio correspondiente de la señal de audio digital tal como se proporciona.

公开(公告)号：DE60305907T2

公开(公告)日：2007-02-01

申请号：DE60305907

申请日：2003-02-14

Applicant: MOTOROLA INC

Inventor： RAMABADRAN TENKASI V ,  SMITH AARON M ,  JASIUK MARK A

IPC: G10L19/02 ,  G10L19/04 ,  G10L19/06 ,  G10L19/08

Abstract: A system or method for modeling a signal, such as a speech signal, in which harmonic frequencies and amplitudes are identified and the harmonic magnitudes are interpolated to obtain spectral magnitudes at a set of fixed frequencies. An inverse transform is applied to the spectral magnitudes to obtain a pseudo auto-correlation sequence, from which linear prediction coefficients are calculated. From the linear prediction coefficients, model harmonic magnitudes are generated by sampling the spectral envelope defined by the linear prediction coefficients. A set of scale factors are then calculated as the ratio of the harmonic magnitudes to the model harmonic magnitudes and interpolated to obtain a second set of scale factors at the set of fixed frequencies. The spectral envelope magnitudes at the set of fixed frequencies are multiplied by the second set of scale factors to obtain new spectral magnitudes and the process is iterated to obtain final linear prediction coefficients. The signal is modeled by the linear prediction coefficients.

公开(公告)号：CA2572152A1

公开(公告)日：2006-01-19

申请号：CA2572152

申请日：2005-06-09

Applicant: MOTOROLA INC

Inventor： KUSHNER WILLIAM M ,  JASIUK MARK A ,  HARTON SARA M

IPC: G10L15/00 ,  G10L15/06 ,  G10L21/00

Abstract: A method for characterizing inhalation noise within a pressurized air delivery system, the method including the steps of: generating an inhalation noise model ( 912, 1012 ) based on inhalation noise; receiving an input signal ( 802 ) that includes inhalation noise comprising at least one inhalation noise burst; comparing ( 810 ) the input signal to the noise model to obtain a similarity measure; comparing the similarity measure to at least one threshold ( 832, 834 ) to detect the at least one inhalation noise burst; and characterizing ( 1354, 1356 ) the at least one detected inhalation noise burst.

公开(公告)号：CA2571768A1

公开(公告)日：2006-01-19

申请号：CA2571768

申请日：2005-06-06

Applicant: MOTOROLA INC

Inventor： HARTON SARA M ,  JASIUK MARK A ,  KUSHNER WILLIAM M

IPC: G10L21/02 ,  H04B15/00

Abstract: A method for detecting and attenuating inhalation noise in a communication system coupled to a pressurized air delivery system, the method including the steps of: generating an inhalation noise model ( 912, 1012 ) based on inhalation noise; receiving an input signal ( 802 ) that includes inhalation noise; comparing ( 810 ) the input signal to the noise model to obtain a similarity measure; determining ( 854 ) a gain factor based on the similarity measure; and modifying ( 852 ) the input signal based on the gain factor, wherein the inhalation noise in the input signal is attenuated based on the gain factor.