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Udar Mittal

from Rolling Meadows, IL
Age ~53
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Also known as:
Ruchi Mittal, Mittal Udar, Udar Matell, Udar Richardson
Phone and address:
5718 Silentbrook Ln, Rolling Meadows, IL 60008
(847) 380-1977
Related to:
Ruchi Mittal, 48Ruchi Mittal, 46Kusum L Mittal
Connected to:
Ameeshi Mittal, 44Ananya Mittal, 48Anisha Mittal, 42Anita L Mittal, 70Anshita Mittal, 40Aparna Mittal, 42Ashish Mittal, 47Bhavna B Mittal, 52Bhupesh Mittal, 53Chandra K Mittal, 76

Udar Mittal Phones & Addresses

  • 5718 Silentbrook Ln, Rolling Mdws, IL 60008 (847) 380-1977
  • Rolling Meadows, IL
  • Hoffman Estates, IL
  • Lombard, IL
  • Bartlett, IL
  • Stony Brook, NY
  • Edison, NJ
  • Schaumburg, IL

Work

Company: Motorola Oct 1999 to Jan 2009 Position: Principal research engineer

Education

Degree: Doctorates, Doctor of Philosophy School / High School: Stony Brook University 1995 to 1999 Specialities: Engineering

Skills

Lte • Embedded Systems • Embedded Software • Wireless • Software Development

Industries

Telecommunications

Resumes

Resumes

Udar Mittal Photo 1

Network And System Simulation Engineer

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Location:
5718 Silentbrook Ln, Rolling Meadows, IL 60008
Industry:
Telecommunications
Work:
Motorola Oct 1999 - Jan 2009
Principal Research Engineer
Lucent Technologies Bell Labs 1997 - 1997
Summer Intern
1997 - 1997
Network and System Simulation Engineer
Education:
Stony Brook University 1995 - 1999
Doctorates, Doctor of Philosophy, Engineering Indian Institute of Technology, Kanpur 1988 - 1992
Skills:
Lte
Embedded Systems
Embedded Software
Wireless
Software Development

Publications

Us Patents

Method And Apparatus For Performing Harmonic Noise Weighting In Digital Speech Coders

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US Patent:
6983241, Jan 3, 2006
Filed:
Oct 14, 2004
Appl. No.:
10/965462
Inventors:
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G10L 19/04
US Classification:
704207, 704211, 704226
Abstract:
To address the need for choosing values of harmonic noise weighting (HNW) coefficient (ε) so that the amount of harmonic noise weighting can be optimized, a method and apparatus for performing harmonic noise weighting in digital speech coders is provided herein. During operation, received speech is analyzed to determine a pitch period. HNW coefficients are then chosen based on the pitch period, and a perceptual noise weighting filter (C(z)) is determined based on the harmonic-noise weighting (HNW) coefficients (ε).

Method And Apparatus For Improvement Coding Of The Subframe Gain In A Speech Coding System

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US Patent:
7047188, May 16, 2006
Filed:
Nov 8, 2002
Appl. No.:
10/290572
Inventors:
Mark A. Jasiuk - Chicago IL, US
James P. Ashley - Naperville IL, US
Udar Mittal - Hoffman Estates IL, US
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G10L 19/04
US Classification:
704220, 704223
Abstract:
A speech coder that performs analysis-by-synthesis coding of a signal determines gain parameters for each constituent component of multiple constituent components of a synthetic excitation signal. The speech coder generates a target vector based on an input signal. The speech coder further generates multiple constituent components associated with the synthetic excitation signal, wherein one constituent component of the multiple constituent components is based on a shifted version of another constituent component of the multiple constituent components. The speech coder further evaluates an error criteria based on the target vector and the multiple constituent components to determine a gain associated with each constituent component of the multiple constituent components.

Optimizing Encoder For Efficiently Determining Analysis-By-Synthesis Codebook-Related Parameters

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US Patent:
7054807, May 30, 2006
Filed:
Nov 8, 2002
Appl. No.:
10/291056
Inventors:
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Edgardo M. Cruz - Round Lake IL, US
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G10L 19/12
US Classification:
704223, 704220
Abstract:
A CELP encoder is provided that optimizes excitation vector-related parameters in a more efficient manner than the encoders of the prior art. In one embodiment, a CELP encoder optimizes excitation vector-related parameters based on a computed correlation matrix, which matrix is in turn based on a filtered first excitation vector. The encoder then evaluates error minimization criteria based on at least in part on a target signal, which target signal is based on an input signal, and the correlation matrix and generates a excitation vector-related index in response to the error minimization criteria. In another embodiment, a CELP encoder is provided that is capable of jointly optimizing and/or sequentially optimizing multiple excitation vector-related parameters by reference to a joint search weighting factor, thereby invoking an optimal error minimization process.

Low-Complexity Bit-Robust Method And System For Combining Codewords To Form A Single Codeword

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US Patent:
7230550, Jun 12, 2007
Filed:
May 16, 2006
Appl. No.:
11/383506
Inventors:
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H03M 5/00
US Classification:
341 55, 341 58
Abstract:
A system () and method () of combining codewords is provided. The system can include a splitter () for splitting a first codeword () into a most significant bits part MSP () and a least significant bits part LSP (), a combiner () for combining the MSP of the first codeword with a second codeword to produce a first group (), and a concatenator () for concatenating the first group with the LSP to produce a second group (), and multiplexing the first group with the second group to produce a multiplexed codeword (). Bit-errors in the LSP correspond to decoding errors only in a codeword associated with the LSP, and not to decoding errors in other codewords.

Apparatus And Method For Low Complexity Combinatorial Coding Of Signals

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US Patent:
7461106, Dec 2, 2008
Filed:
Sep 12, 2006
Appl. No.:
11/531122
Inventors:
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Edgardo M. Cruz-Zeno - Round Lake IL, US
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G06F 15/00
US Classification:
708200
Abstract:
The invention utilizes low complexity estimates of complex functions to perform combinatorial coding of signal vectors. The invention disregards the accuracy of such functions as long as certain sufficient properties are maintained. The invention in turn may reduce computational complexity of certain coding and decoding operations by two orders of magnitude or more for a given signal vector input.

Method And Apparatus For Speech Coding

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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.

Method And Apparatus For Low Complexity Combinatorial Coding Of Signals

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US Patent:
7889103, Feb 15, 2011
Filed:
Mar 13, 2008
Appl. No.:
12/047586
Inventors:
Udar Mittal - Hoffman Estates IL, US
James P. Ashley - Naperville IL, US
Assignee:
Motorola Mobility, Inc. - Libertyville IL
International Classification:
H03M 7/00
US Classification:
341107, 341 51, 341 58, 341 59, 341 65, 341 67, 37524022, 37524024, 375262, 375295, 382104, 382236, 382253
Abstract:
To reduce the complexity of the encoding/decoding of pulse positions and/or pulse magnitudes associated with complex combinatorial computations, a method and structure for encoding and decoding of pulse position and/or pulse magnitudes requires fewer computations of these combinatorial functions. Adaptive switching between coding or encoding is performed in accordance with the estimated density of the plurality of occupied positions.

Selective Scaling Mask Computation Based On Peak Detection

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US Patent:
8140342, Mar 20, 2012
Filed:
Dec 29, 2008
Appl. No.:
12/345141
Inventors:
James P. Ashley - Naperville IL, US
Udar Mittal - Hoffman Estates IL, US
Assignee:
Motorola Mobility, Inc. - Libertyville IL
International Classification:
G10L 19/00
US Classification:
704500
Abstract:
A set of peaks in a reconstructed audio vector Ŝ of a received audio signal is detected and a scaling mask ψ(Ŝ) based on the detected set of peaks is generated. A gain vector g* is generated based on at least the scaling mask and an index j representative of the gain vector. The reconstructed audio signal is scaled with the gain vector to produce a scaled reconstructed audio signal. A distortion is generated based on the audio signal and the scaled reconstructed audio signal. The index of the gain vector based on the generated distortion is output.
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Udar Mittal from Rolling Meadows, IL, age ~53 Get Report