David H Petersen

US Patent:

7065102, Jun 20, 2006

Filed:

Mar 1, 2002

Appl. No.:

10/090315

Inventors:

David C. Petersen - Campbell CA, US
Vladimir A. Sukhanov - Cupertino CA, US

Assignee:

Network General Technology - George Town

International Classification:

H04J 3/16

US Classification:

370469, 711216

Abstract:

A system, method and computer program product are provided for correlating request packets and reply packets during network analysis. Initially, first information is monitored associated with at least one layer of a request packet that resides above a data link control layer thereof. Further monitored is second information associated with at least one layer of a reply packet that resides above the data link control layer thereof. The request packet and the reply packet are then correlated utilizing the first information and the second information. A network is then analyzed based on the correlated request packet and reply packet.

US Patent:

7314447, Jan 1, 2008

Filed:

Mar 15, 2004

Appl. No.:

10/800950

Inventors:

William J. Park - San Jose CA, US
Vaughn Marian - Saratoga CA, US
David Petersen - Fall City WA, US
Worth B. Walters - Cupertino CA, US

Assignee:

Siemens Medical Solutions USA, Inc. - Malvern PA

International Classification:

A61B 8/00

US Classification:

600459

Abstract:

An ultrasound transducer assembly is disclosed having a housing, a transducer array mounted in the housing and an electronics assembly mounted in the housing, the electronics assembly including one or more sub-assemblies having heat generating components disposed thereon. The electronics sub-assemblies further include thermal conducting features which conduct heat generated by the heat generating components out of the electronics assembly where it can be further removed by other thermal management techniques. These other thermal management techniques may include techniques utilized to cool the transducer array.

US Patent:

8014726, Sep 6, 2011

Filed:

May 31, 2007

Appl. No.:

11/809464

Inventors:

David Petersen - San Francisco CA, US
Padraig Stapleton - Pleasanton CA, US

Assignee:

The Nielsen Company (U.S.), LLC - Schaumburg IL

International Classification:

H04B 17/00

US Classification:

455 6711, 455418, 455419, 455566, 455423, 455445, 709223, 709224, 370252, 345 21

Abstract:

A method of collecting information on a wireless device. A wireless device may comprise a processor, a transceiver, a memory and a data collecting component. The data collecting component is operable to monitor the wireless device and collect information (e. g. , wireless network information, wireless device information and wireless device usage information). In one embodiment, at least a portion of the data collecting component is installed within and/or below the operating system. For example, at least a portion of the data collecting component may be embedded within the operating system, the kernel, the firmware and/or on top of the firmware, the kernel or any combination thereof. In one embodiment, the collected information may be processed, stored and transmitted. Accordingly, the data collector component operates in a non-intrusive/transparent manner by utilizing less memory space and produces fewer errors without causing a system slowdown while maintaining high level of privacy and security.

US Patent:

8538343, Sep 17, 2013

Filed:

Aug 25, 2011

Appl. No.:

13/218109

Inventors:

David Petersen - San Francisco CA, US
Padraig Stapleton - Pleasanton CA, US

Assignee:

The Nielsen Company (US), LLC - Schaumburg IL

International Classification:

H04B 17/00

US Classification:

455 6711, 455566, 455423, 455445, 455418, 455419, 455405, 709223, 709224, 345 21, 370252, 379 8801, 379 8804

Abstract:

Example methods, apparatus, and articles of manufacture to collect wireless information are disclosed. A disclosed example method involves installing an operating system and a data collector to execute outside a context of the operating system on a wireless handheld device. A testing process is performed to ensure functionality of the wireless handheld device. An application is installed on the wireless handheld device to execute in the context of the operating system. The data collector is to collect usage information regarding the application and to provide the usage information to a network provider.

US Patent:

20080248795, Oct 9, 2008

Filed:

Apr 9, 2007

Appl. No.:

11/784883

Inventors:

David Petersen - San Francisco CA, US
Padraig Stapleton - Pleasanton CA, US
Kevin Hannan - San Mateo CA, US

Assignee:

TELEPHIA INCORPORATION - SAN FRANCISCO CA

International Classification:

H04Q 7/20

US Classification:

455423

Abstract:

A method of classifying a call failure. In one embodiment, an indication of a call failure is received and the cause of the failed call is automatically identified and classified. In one embodiment, identifying the cause of a call failure comprises determining signal characteristics, determining network resource availability, and determining cellular structure characteristics. In one embodiment, a call failure is classified as coverage failure if the signal strength is below an acceptable threshold or if a wireless device initiates a call and receives no response from the network or when the signal interference is above an acceptable threshold. In one embodiment, a call failure is classified as capacity failure if a network is unable to accommodate a wireless device with a communication channel or resources. A call failure is classified as operational failure if the call failure is related to mistakes in a configuration file defining and identifying cellular structures.

US Patent:

20080299910, Dec 4, 2008

Filed:

May 30, 2007

Appl. No.:

11/809318

Inventors:

David Petersen - San Francisco CA, US
Padraig Stapleton - Pleasanton CA, US

Assignee:

TELEPHIA INCORPORATION - SAN FRANCISCO CA

International Classification:

H04B 17/00
H04Q 7/20

US Classification:

455 6711, 455446, 455 677

Abstract:

A method of measuring wireless cross technology wireless coverage. The method includes initiating a call from a wireless device using a given wireless technology; in response to the initiating, receiving a plurality of data for the given wireless technology; in response to the receiving, analyzing the plurality of data; repeating the above steps for various wireless technologies; and generating a calibration for the analysis of the plurality of data for various wireless technologies. The adjusted data in response to the generated calibration is constructed and outputted. In one embodiment, the analysis includes determining the signal strength for the wireless device of the given wireless technology and determining the probability of call failure for the wireless device of the given wireless technology. Accordingly, at a given probability of call failure, signal strengths of the wireless device for various wireless technologies are corresponded and are equivalent to one another.

US Patent:

20100235495, Sep 16, 2010

Filed:

Sep 10, 2009

Appl. No.:

12/557256

Inventors:

David Petersen - Kensington CA, US
Daniel Soble - Pleasanton CA, US

Assignee:

salesforce.com, Inc. - San Francisco CA

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

Mechanisms and methods for reducing a load on a multi-tenant database are provided. These mechanisms and methods for reducing a load on a multi-tenant database can enable a reduction in the computational effort expended to handle login requests with invalid usernames and the computational effort expended to handle valid login requests that occur at a high rate. The ability to provide a reduction in computational effort expended on login requests can enable a providing of a reliable level of resources to users and tenants of the multi-tenant database.

US Patent:

20120259968, Oct 11, 2012

Filed:

Apr 6, 2011

Appl. No.:

13/081078

Inventors:

Jaime F. Anaya - San Jose CA, US
Paul M. Cadarette - Hemet CA, US
Michael G. Fitzpatrick - Raleigh NC, US
David B. Petersen - Great Falls VA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06F 15/16

US Classification:

709224, 709223

Abstract:

A continuous availability system including a controller module executing on a computer processor, the system is configured to receive a unit of work and to select a primary site from a plurality of sites to process the unit of work. Once a site is selected the system is further configured to select one of one or more processing systems from the primary site to process the unit of work. The system is additionally configured to replicate the unit of work to at least one other site once the unit of work is completed at the primary site. The system is configured to operate even when the primary site is separated from each of the plurality of sites by a distance greater than a metropolitan area network and the operations occur within a customer acceptability window.