Michael H Mclaughlin

US Patent:

7170988, Jan 30, 2007

Filed:

Oct 27, 2003

Appl. No.:

10/694571

Inventors:

Jonathan A. Gibbs - Southampton, GB
James P. Ashley - Naperville IL, US
Halil Fikretler - Basingstoke, GB
Mark A. Jasiuk - Chicago IL, US
Michael J. McLaughlin - Palatine IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04M 7/00
H04J 3/16
H04J 3/22

US Classification:

379224, 370467

Abstract:

A method of enhanced tandem communication is provided between at least a first portion of a network suitable for voice communications and a second portion of a network suitable for voice communications. During operation, two representations of an encoded signal are transmitted from the first portion of a network. The two representations comprise the encoded signal produced by a first codec and a parameter translation of the first encoded signal into an encoded signal compatible with a single common compressed voice codec (CCVC) format.

US Patent:

7283956, Oct 16, 2007

Filed:

Sep 18, 2002

Appl. No.:

10/245963

Inventors:

James Patrick Ashley - Naperville IL, US
Tenkasi Vaideeswaran Ramabadran - Naperville IL, US
Michael Joseph McLaughlin - Palatine IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G10L 21/00
G10L 21/02

US Classification:

704228, 704233, 704224, 704225, 704226, 704227

Abstract:

A method and apparatus for noise suppression is described herein. The channel gain is controlled based on a degree of variability of the background noise. The noise variability estimate is used in conjunction with a variable attenuation concept to produce a family of gain curves that are adaptively suited for a variety of combinations of long-term peak SNR and noise variability. More specifically, a measure of the variability of the background noise is used to provide an optimized threshold that reduces the occurrence of non-stationary background noise entering into the transition region of the gain curve.

US Patent:

7343283, Mar 11, 2008

Filed:

Oct 23, 2002

Appl. No.:

10/278377

Inventors:

James Ashley - Naperville IL, US
Michael McLaughlin - Palatine IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G10L 19/00

US Classification:

704219, 704226

Abstract:

An unfiltered frame portion () from a second frame () is blended together with a filtered frame portion () from a first frame () to produce a combined frame portion (). The combined frame portion () is then buffered () along with the filtered frame () for LPC analysis.

US Patent:

7792670, Sep 7, 2010

Filed:

Oct 14, 2004

Appl. No.:

10/964861

Inventors:

Mark A. Jasiuk - Chicago IL, US
Tenkasi V. Ramabadran - Naperville IL, US
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Michael J. McLaughlin - Palatine IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G10L 19/00

US Classification:

704219, 704220, 704221, 704222, 704226, 704503

Abstract:

A method and apparatus for prediction in a speech-coding system is provided herein. The method of a 1order long-term predictor (LTP) filter, using a sub-sample resolution delay, is extended to a multi-tap LTP filter, or, viewed from another vantage point, the conventional integer-sample resolution multi-tap LTP filter is extended to use sub-sample resolution delay. This novel formulation of a multi-tap LTP filter offers a number of advantages over the prior-art LTP filter configurations. Particularly, defining the lag with sub-sample resolution makes it possible to explicitly model the delay values that have a fractional component, within the limits of resolution of the over-sampling factor used by the interpolation filter. The coefficients of such a multi-tap LTP filter are thus largely freed from modeling the effect of delays that have a fractional component. Consequently their main function is to maximize the prediction gain of the LTP filter via modeling the degree of periodicity that is present and by imposing spectral shaping.

US Patent:

8538747, Sep 17, 2013

Filed:

Jul 19, 2010

Appl. No.:

12/838913

Inventors:

Mark A. Jasiuk - Chicago IL, US
Tenkasi V. Ramabadran - Naperville IL, US
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Michael J. McLaughlin - Palatine IL, US

Assignee:

Motorola Mobility LLC - Libertyville IL

International Classification:

G10L 21/02

US Classification:

704226, 704500, 704501, 704502, 704503, 704504

Abstract:

A method and apparatus for prediction in a speech-coding system extends a 1order long-term predictor (LTP) filter, using a sub-sample resolution delay, to a multi-tap LTP filter. From another perspective, a conventional integer-sample resolution multi-tap LTP filter is extended to use sub-sample resolution delay. Such a multi-tap LTP filter offers a number of advantages over the prior-art. Particularly, defining the lag with sub-sample resolution makes it possible to explicitly model the delay values that have a fractional component, within the limits of resolution of the over-sampling factor used by the interpolation filter. The coefficients (β's) of the multi-tap LTP filter are thus largely freed from modeling the effect of delays that have a fractional component. Consequently their main function is to maximize the prediction gain of the LTP filter via modeling the degree of periodicity that is present and by imposing spectral shaping.

US Patent:

20050091047, Apr 28, 2005

Filed:

Oct 27, 2003

Appl. No.:

10/694574

Inventors:

Jonathan Gibbs - Southampton, GB
James Ashley - Naperville IL, US
Halil Fikretler - Basingstoke, GB
Mark Jasiuk - Chicago IL, US
Michael McLaughlin - Palatine IL, US

International Classification:

G10L019/00

US Classification:

704219000

Abstract:

The present invention provides a method of tandem communication between at least a first portion of a network suitable for voice communications and a second portion of a network suitable for voice communications. In an embodiment of the present invention, a common data format is applied to an encoded signal produced by a codec of the first portion of a network. Upon application, the common data format comprises quantised parameters of the encoded signal and descriptors characterising the coding scheme of the first codec.

US Patent:

48051934, Feb 14, 1989

Filed:

Jun 4, 1987

Appl. No.:

7/058201

Inventors:

Michael McLaughlin - Palatine IL
Phillip D. Rasky - Glenview IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 1306

US Classification:

375 27

Abstract:

A digital communication system for transmission and reception of speech signals and utilizing sampling, filtering and sub-band coding techniques for reduction of the bit rate. The energy levels of each sub-band are determined with respect to the band having the maximum energy level. The energy level information is encoded and divided into protected and unprotected bits. Only the protected bits are used for the determination of the bit allocation of the sample information, but both protected and unprotected bits are utilized in reconstituting the original levels of the bands.

US Patent:

45493111, Oct 22, 1985

Filed:

Mar 20, 1985

Appl. No.:

6/714063

Inventors:

Michael J. McLaughlin - Hoffman Estates IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 708

US Classification:

455277

Abstract:

An improved method and apparatus for measuring the strength of a radio frequency (RF) signal subject to Rayleigh fading is described. The strength of the RF signal is sampled two or more times during a predetermined time interval and the sampled signal strength having the largest magnitude is selected. The selected signal strength is a reasonably accurate measure of the signal strength since the true average strength of a Rayleigh fading signal is close to its peak signal strength. The inventive method and apparatus is particularly well adapted for use in a scanning receiver located in a base station radio of a cellular radiotelephone communications system. The scanning receiver includes an antenna selector for selecting one of a plurality of sector antennas, an RF signal receiver tunable to a plurality of different RF signal frequencies, an analog-to-digital converter for converting RF signal strength samples to a binary data signal, and a microprocessor together with peripheral devices for controlling the operation of the antenna selector, RF signal receiver and analog-to-digital converter.

Address:

6527 W Byron St, Chicago, IL 60634

VIN:

1GNDT13S072122679

Make:

CHEVROLET

Model:

TRAILBLAZER

Year:

2007