Richard M Stewart

US Patent:

6577155, Jun 10, 2003

Filed:

Jul 30, 2001

Appl. No.:

09/918362

Inventors:

Richard William Stewart - San Diego CA
Bruce L. Harlacher - San Diego CA

Assignee:

Fischer Custom Communications, Inc. - Torrance CA

International Classification:

H03H 738

US Classification:

326 32, 333 33

Abstract:

Controlling the common mode impedance for a circuit, conductor, or multiple conductor cable by incorporating the circuit or conductor into the primary of a transformer. The secondary of the transformer is coupled to a secondary impedance selected so that the desired impedance is obtained. A capacitive shunt may be added to buffer the intrinsic primary impedance. The intrinsic impedance of a conductive antenna structure is controlled by deploying a portion of the antenna structure as the primary of a transformer and coupling the secondary of the transformer to a selectable secondary impedance.

US Patent:

6714780, Mar 30, 2004

Filed:

Jun 12, 2001

Appl. No.:

09/722001

Inventors:

Franklin P. Antonio - Del Mar CA
Gene W. Marsh - Del Mar CA
Richard A. Stewart - San Diego CA
Marie M. Bjerede - West Linn OR
Ananthanarayanan Chockalingam - San Diego CA
Arthur S. Kerns - San Diego CA
Brian Butler - La Jolla CA
Matthew S. Grob - La Jolla CA
James T. Determan - Encinitas CA
Douglas Grover - San Diego CA
Leonard N. Schiff - San Diego CA
William G. Ames - Poway CA

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

H04Q 720

US Classification:

455425, 455429, 455 121, 370331, 370332

Abstract:

A method for reducing call dropping rates in a multi-beam communication system. The multi-beam communication system includes a user terminal, a gateway, and a plurality of beam sources, where each beam source projects a plurality of beams, and where a communication link between the user terminal and the gateway is established on one or more beams. The method according to the present invention relies on a messaging protocol between the gateway and the user terminal. Based on messages sent from the user terminal to the gateway, preferably on a preselected periodic basis, the gateway can determine the more desirable beam(s) for transmitting data or information to the user terminal. The messages sent from the user terminal to the gateway contain values representing beam strengths as measured at the user terminal. The gateway uses the user terminal measured beam strengths to select the beams that should be used for transmitting data or information to the user terminal. The beams that should be used are the beams that if used will decrease the call dropping rates and provide a desired level of beam source diversity.

US Patent:

7920136, Apr 5, 2011

Filed:

Apr 28, 2006

Appl. No.:

11/413239

Inventors:

Richard A. Stewart - San Diego CA, US
Clarence Chui - San Mateo CA, US
Robert S. Hastings - San Diego CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G06F 3/038
G09G 5/00

US Classification:

345204, 359237

Abstract:

Methods of writing display data to MEMS display elements are configured to minimize charge buildup and differential aging. Simultaneous to writing rows of image data, a pre-write operation is performed on a next row. The pre-write operation writes either image data or the inverse of the image data to the next row. In some embodiments, the selection between writing image data and writing inverse image data is performed in a random or pseudo-random manner.

US Patent:

8174469, May 8, 2012

Filed:

May 5, 2006

Appl. No.:

11/429571

Inventors:

Douglas H. Moe - Oceanside CA, US
Franklin P. Antonio - Del Mar CA, US
Richard A. Stewart - San Diego CA, US

Assignee:

Qualcomm MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 3/34

US Classification:

345 84, 345 87, 359290

Abstract:

A display device which can provide configuration information to the driver circuit and methods of manufacturing and operating the same are disclosed. In one embodiment, a display device comprises a display array and a collection of links configured to store information related to the display array.

US Patent:

20030107648, Jun 12, 2003

Filed:

Dec 12, 2001

Appl. No.:

10/017190

Inventors:

Richard Stewart - San Diego CA, US
Keith Trahan - San Diego CA, US
David Chesavage - San Diego CA, US
Sean Casey - Solana Beach CA, US
Michael Rome - San Diego CA, US
Chris Kokinakes - Encinitas CA, US

International Classification:

H04N007/18

US Classification:

348/143000, 348/152000, 348/154000, 348/155000, 375/240010

Abstract:

A surveillance system includes video surveillance cameras that are in various locations sought to be monitored. Each camera is associated with a variable frame rate that is faster when motion is detected in the location and slower when little or no motion is detected, to improve resolution when needed. A system hub receives video feeds from the cameras and sends them on to wireless clients upon client request.

US Patent:

20100274755, Oct 28, 2010

Filed:

Apr 28, 2009

Appl. No.:

12/431036

Inventors:

Richard Alan STEWART - San Diego CA, US

International Classification:

G06F 17/00

US Classification:

706 54

Abstract:

Methods and computing devices enable identifying particular software functions, modules or arithmetic blocks within a software binary image. Memory register and memory address references within the binary image are normalized. Functions within the binary image are identified. Each function within the binary image is compared against one or more reference function binary images to determine if there is a match. The function-to-reference function comparison may be accomplished by comparing bit patterns or by comparing hash values generated by applying a hash function to the selected function and the reference function. Component parts within functions in the binary image can be identified and compared to reference function component parts within a reference function or within a database of reference function component parts. Results of the comparisons may be used to determine a degree to which the software binary image matches reference functions and/or component parts.

US Patent:

20120124428, May 17, 2012

Filed:

Nov 17, 2010

Appl. No.:

12/948740

Inventors:

Thomas M. ZENG - San Diego CA, US
Richard A. STEWART - San Diego CA, US

International Classification:

G06F 11/34

US Classification:

714 45, 714E112

Abstract:

A system and method for evaluating programmable device systems captures, categorizes, indexes, manipulates and stores generated embedded trace generated information in an enterprise database. Use cases may be executed on an ETM enabled processor, ETM trace data may be captured, and captured trace data may be manipulated and stored in the enterprise database. The data collected from numerous use cases over multiple executions may be used to generate a differential comparison. The differential comparison may be used to interpret and predict bottlenecks, bugs and irregularities within the programmable device.

US Patent:

20130311794, Nov 21, 2013

Filed:

May 21, 2012

Appl. No.:

13/476293

Inventors:

Richard A. Stewart - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

G06F 1/26

US Classification:

713300

Abstract:

Various embodiments of methods and systems for managing battery capacity in a portable computing device (“PCD”) are disclosed. One such method includes leveraging a request/grant algorithm that receives a request from an offline component to come online. If battery capacity is available to accommodate the offline component, the request is granted. If battery capacity is not available to accommodate the offline component, the request is authorized at a reduced power level or capacity is created by reducing power to online components. Another method polls a battery to monitor demand on its capacity by active components. Offline components likely to come online concurrently with the active components are identified and ranked based on power consumption. A target current margin is adjusted based on the highest power consumption associated with an identified block of offline components.