Murali Madhav Menon

6940917, Sep 6, 2005

Aug 27, 2002

10/228393

Murali Paravath Menon - Waltham MA, US
John W. Ketchum - Harvard MA, US
Mark Wallace - Bedford MA, US
Jay Rod Walton - Carlisle MA, US
Steven J. Howard - Harvard MA, US

Qualcomm, Incorporated - San Diego CA

H04B007/02

375267

Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be achieved for each subband. The total transmit power is allocated to the subbands based on a particular power allocation scheme (e. g. , full channel inversion, selective channel inversion, water-filling, or uniform). A scaling value is then obtained for each subband based on its allocated transmit power. Data to be transmitted is coded and modulated to provide modulation symbols. The modulation symbols to be transmitted on each subband are scaled with the subband's scaling value and further preconditioned with the subband's steering vector. A stream of preconditioned symbols is then formed for each transmit antenna.

7194040, Mar 20, 2007

Jul 18, 2005

11/184601

Murali Paravath Menon - Waltham MA, US
John W. Ketchum - Harvard MA, US
Mark Wallace - Bedford MA, US
Jay Rod Walton - Carlisle MA, US
Steven J. Howard - Harvard MA, US

Qualcomm Incorporated - San Diego CA

H04K 1/10
H04L 27/28

375260

Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be achieved for each subband. The total transmit power is allocated to the subbands based on a particular power allocation scheme (e. g. , full channel inversion, selective channel inversion, water-filling, or uniform). A scaling value is then obtained for each subband based on its allocated transmit power. Data to be transmitted is coded and modulated to provide modulation symbols. The modulation symbols to be transmitted on each subband are scaled with the subband's scaling value and further preconditioned with the subband's steering vector. A stream of preconditioned symbols is then formed for each transmit antenna.

8144814, Mar 27, 2012

May 18, 2007

11/750769

Murali Paravath Menon - Somerville MA, US
Mark S. Wallace - Bedford MA, US

QUALCOMM Incorporated - San Diego CA

H03D 3/00
H03K 9/06

375322

Techniques for estimating signal quality in a communication system are described. Scaled errors are obtained for inphase (I) and quadrature (Q) components of detected symbols. The scaled errors are determined based on a first function having higher resolution for small errors than large errors between the detected symbols and nearest modulation symbols. The first function may be a square root function or some other function that can provide good resolution for both low and high SNRs. The scaled errors for the I and Q components are combined to obtain combined scaled errors, which are averaged to obtain an average scaled error. A signal quality estimate is then determined based on the average scaled error and in accordance with a second function having non-linearity to compensate for the first function.

8194069, Jun 5, 2012

May 19, 2011

13/111773

Grant Thomas-Lepore - Newton MA, US
Iwao Hatanaka - Acton MA, US
Murali Menon - Lexington MA, US

Gemvara, Inc. - Boston MA

G06T 15/00
G06T 17/00
G09G 5/00
G06F 3/00

345420, 345419, 345619, 715700

A computer system includes a three-dimensional model of an object such as a piece of jewelry. The model is divided into multiple layers, each of which contains one or more components of the object. Each layer is associated with one or more attribute types, each of which is associated with a corresponding plurality of possible attribute values. The system pre-renders each layer with each possible attribute type and each possible attribute value for that type and layer. The resulting layer renderings may be combined with each other to produce personalized renderings of the entire object without the need to pre-render all possible combinations of attribute values. Responsibility for rendering the layers and the final complete object personalization may be divided between client and server in a variety of ways to increase efficiency.

20100169059, Jul 1, 2010

Jan 7, 2010

12/684103

Grant Thomas-Lepore - Newton MA, US
Iwao Hatanaka - Acton MA, US
Murali Menon - Lexington MA, US

G06F 17/50
G06F 3/048

703 1, 715849

A computer system includes a three-dimensional model of an object such as a piece of jewelry. The model is divided into multiple layers, each of which contains one or more components of the object. Each layer is associated with one or more attribute types, each of which is associated with a corresponding plurality of possible attribute values. The system pre-renders each layer with each possible attribute type and each possible attribute value for that type and layer. The resulting layer renderings may be combined with each other to produce personalized renderings of the entire object without the need to pre-render all possible combinations of attribute values. Responsibility for rendering the layers and the final complete object personalization may be divided between client and server in a variety of ways to increase efficiency.

20120327084, Dec 27, 2012

Apr 25, 2012

13/455934

Grant Thomas-Lepore - Newton MA, US
Iwao Hatanaka - Acton MA, US
Murali Menon - Lexington MA, US

G06T 17/00

345420

A computer system includes a three-dimensional model of an object such as a piece of jewelry. The model is divided into multiple layers, each of which contains one or more components of the object. Each layer is associated with one or more attribute types, each of which is associated with a corresponding plurality of possible attribute values. The system pre-renders each layer with each possible attribute type and each possible attribute value for that type and layer. The resulting layer renderings may be combined with each other to produce personalized renderings of the entire object without the need to pre-render all possible combinations of attribute values. Responsibility for rendering the layers and the final complete object personalization may be divided between client and server in a variety of ways to increase efficiency.

57039640, Dec 30, 1997

May 6, 1996

8/617854

Murali M. Menon - Woburn MA
Eric R. Boudreau - Leominster MA

Massachusetts Institute of Technology - Cambridge MA

G06K 962

382228

A pattern recognition system is described. During training, multiple training input patterns from multiple classes of subjects are grouped into clusters within categories by computing correlations between the training patterns and present category definitions. After training, each category is labeled in accordance with the peak class of patterns received within the cluster of the category. If the domination of the peak class over the other classes in the category exceeds a preset threshold, then the peak class defines the category. If the contrast does not exceed the threshold, then the category is defined unknown. The class statistics for each category are stored in the form of a training class histogram for the category. During testing, frames of test data are received from a subject and are correlated with the category definitions. Each frame is associated with the training class histogram for the closest correlated category.

56470282, Jul 8, 1997

Jun 7, 1995

8/487709

Murali M. Menon - Watertown MA

Massachusetts Institute of Technology - Cambridge MA

G06K 940

382275

An image restoration apparatus for reconstructing an actual image from a measurement field image containing noise, the apparatus including means for storing image data for a restoration field; means for storing the measurement field image; means for solving a dynamical system equation for the image data, wherein the dynamical system equation is based on an energy function for a system made up of a restoration field variable and the measurement field image, wherein the energy function contains a surround term E. sub. s which represents local interactions within the restoration field, and wherein the local interactions are characterized by sigmoid-like functions.