Patents by Inventor Jacobus Van der Merwe

Jacobus Van der Merwe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130231955
    Abstract: A method of performing a diagnosis by acquiring data includes receiving an indication of a diagnostic hypothesis, sequentially outputting questions of a structured set of questions related to the diagnostic hypothesis for the indication, receiving a reply corresponding to each question that is output, for each question that is output, generating a respective set of data pertaining to the question and the corresponding reply for the question and formatting the respective set of data into a plurality of record sets for the question, and storing the plurality of record sets for each question within a database in an entry associated with the subject and the diagnostic hypothesis to which the question is related. The questions of the structured set of questions for each indication are dynamically selected for outputting based on the corresponding replies received for the questions.
    Type: Application
    Filed: December 11, 2012
    Publication date: September 5, 2013
    Applicant: HEALTH E 4 LIFE LIMITED
    Inventors: Cornelius Meyer DE VILLIERS, Dirk Jacobus VAN DER MERWE
  • Patent number: 8509169
    Abstract: Methods and apparatus to configure virtual private mobile networks are disclosed. A disclosed example method includes receiving a request at a wireless network provider from a client, the request instructing the wireless network provider to create the virtual private mobile network for the client, identifying available network elements within a wireless network of the wireless network provider based on the request from the client, configuring a portion of a control plane and a portion of a data plane of the identified network elements for the virtual private mobile network, and enabling user equipment associated with the client to wirelessly communicatively couple to the virtual private mobile network.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 13, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Jacobus Van Der Merwe, Deepak K. Chawla, Gustavo de los Reyes, Seungjoon Lee
  • Publication number: 20130194128
    Abstract: A floodlight radar system includes a transmitter arranged to generate output waveforms at first and second centre frequencies, and at least one transmit antenna configured to illuminate a search volume constantly at the first and second centre frequencies. A sparse array of receive antennas is arranged in a common plane and configured to monitor the search volume constantly. The system includes a receive circuit arranged to extract target position information from return signals received by each antenna, and a signal processor circuit which is arranged to resolve ambiguity in the position information using a known relationship between calculated Doppler spectra, wavelengths and phase differences at the first and second frequencies, to calculate azimuth, elevation, range and velocity of a target identified in the search volume. The system is able to rapidly detect and locate multiple fast moving targets in three dimensions.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 1, 2013
    Applicant: Reutech Radar Systems (Prporietary) Limited
    Inventor: Paulus Jacobus Van Der Merwe
  • Patent number: 8473557
    Abstract: Methods and apparatus to migrate virtual machines between distributive computing networks across a wide area network are disclosed. A disclosed example method includes establishing a data link across a wide area network between a first distributive computing network and a second distributive computing network, the first distributive computing network including a virtual machine operated by a first host communicatively coupled to a virtual private network via a first virtual local area network, communicatively coupling a second host included within the second distributive computing network to the virtual private network via a second virtual local area network, and migrating the virtual machine via the data link by transmitting a memory state of at least one application on the first host to the second host while the at least one application is operating.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: June 25, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kadangode K. Ramakrishnan, Jacobus Van Der Merwe, Prashant Shenoy, Timothy Wood
  • Publication number: 20130111033
    Abstract: Systems, methods, and articles of manufacture to provide cloud resource orchestration are disclosed. An example method includes converting, with a processor, a plurality of constraints and a goal for a cloud deployment into a constraint optimization problem, calculating, with the processor, a solution for the constraint optimization problem, and generating instructions to perform cloud resource orchestration for the cloud deployment based on the solution of the constraint optimization problem.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventors: Yun Mao, Changbin Liu, Boon Thau Loo, Jacobus Van der Merwe
  • Publication number: 20130080480
    Abstract: An aspect of the disclosed technology is a general-purpose platform that may be used to provide resilient cloud services. Tasks may be written as procedures in general-purpose programming languages that directly manipulate resources via control interfaces. In one implementation, resource states, such as router configurations and virtual machine states, associated with a cloud customer that provides communications services, may be abstracted into tables in a relational or semi-structured database. State changes that have been written to the database tables are automatically propagated by the database to appropriate customer physical devices, such as network elements, thereby implementing various customer network operations.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Applicant: AT&T INTELLECTUAL PROPERTY I LP
    Inventors: Yun Mao, Maria Fernandez, Changbin Liu, Jacobus Van Der Merwe
  • Publication number: 20130054763
    Abstract: Methods and apparatus to configure virtual private mobile networks with virtual private networks are disclosed. A disclosed example method includes logically provisioning, for a client, the virtual private mobile network to process wireless network communications associated with the client that correspond to a specified address space of the client, provisioning at least a portion of a server within a cloud computing data center to host resources for the client, and configuring at least a portion of an edge router of the cloud computing data center to transmit the wireless network communications between the portion of the server and the virtual private mobile network.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Inventors: Jacobus Van der Merwe, Arati Baliga, Xu Chen, Baris Coskun, Gustavo de los Reyes, Seungjoon Lee, Suhas Mathur, Gang Xu
  • Patent number: 8351435
    Abstract: Systems and methods are described that manage routing information in an IP network using extensible indexing and use the indexing to control the network. The indexing and associated controls apply to any router within the routing domain.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 8, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: John Mulligan, Han Q. Nguyen, Samir Saad, Jacobus Van Der Merwe, Simon Zelingher
  • Patent number: 8352801
    Abstract: A method includes instantiating a cloned network that includes a second set of virtual service nodes. The second set of virtual service nodes includes at least one cloned virtual service node that is a clone of a corresponding virtual service node in a first set of virtual service nodes. The at least one cloned virtual service node has access to a history of events that occurred at the corresponding virtual service node in the first set of virtual service nodes. The method includes initiating an interactive debugging session that includes step by step processing of the events of the history of events.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: January 8, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Jacobus Van Der Merwe, Matthew Chapman Caesar, Chia-Chi Lin
  • Publication number: 20120331545
    Abstract: Methods and apparatus to configure virtual private mobile networks for security are disclosed. A disclosed example method includes identifying, in a wireless network, a communication from a user equipment that matches a security event profile, transmitting, from the wireless network, an instruction to enable the user equipment to be communicatively coupled to a virtual private mobile network, the virtual private mobile network being provisioned for security within the wireless network, and enabling the user equipment to transmit a second communication through the virtual private mobile network securely isolated from other portions of the wireless network.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 27, 2012
    Inventors: Arati Baliga, Xu Chen, Baris Coskun, Gustavo de los Reyes, Seungjoon Lee, Suhas Mathur, Jacobus Van der Merwe, Gang Xu
  • Publication number: 20120311107
    Abstract: Methods and apparatus to configure virtual private mobile networks for latency are disclosed. A disclosed example method includes provisioning logically a virtual private mobile network within a wireless network to reduce latency of a communication associated with a latency sensitive application, determining a mobile device is communicatively coupling to the wireless network via the latency sensitive application, and coupling the mobile device to the virtual private mobile network to reduce latency of the communication associated with the latency sensitive application.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Inventors: Jacobus Van der Merwe, Xu Chen, Baris Coskun, Gustavo de los Reyes, Seungjoon Lee, Suhas Mathur, Arati Baliga, Gang Xu
  • Publication number: 20120284699
    Abstract: A method includes instantiating a cloned network that includes a second set of virtual service nodes. The second set of virtual service nodes includes at least one cloned virtual service node that is a clone of a corresponding virtual service node in a first set of virtual service nodes. The at least one cloned virtual service node has access to a history of events that occurred at the corresponding virtual service node in the first set of virtual service nodes. The method includes initiating an interactive debugging session that includes step by step processing of the events of the history of events.
    Type: Application
    Filed: July 5, 2012
    Publication date: November 8, 2012
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Jacobus Van Der Merwe, Matthew Chapman Ceasar, Chia-Chi Lin
  • Patent number: 8307431
    Abstract: According to an aspect of this invention, a method to detect phishing URLs involves: creating a whitelist of URLs using a first regular expression; creating a blacklist of URLs using a second regular expression; comparing a URL to the whitelist; and if the URL is not on the whitelist, comparing the URL to the blacklist. False negatives and positives may be avoided by classifying Internet domain names for the target organization as “legitimate”. This classification leaves a filtered set of URLs with unknown domain names which may be more closely examined to detect a potential phishing URL. Valid domain names may be classified without end-user participation.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: November 6, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Balachander Krishnamurthy, Oliver Spatscheck, Jacobus Van Der Merwe, Anirudh Ramachandran
  • Publication number: 20120260337
    Abstract: Described is a system and method for receiving a data packet including a destination address and a source address, categorizing the data packet into a community based on the source address, wherein the community is predefined by a user corresponding to the destination address and selecting a treatment for the data packet based on the community. The method may be implemented on a router to avoid and/or mitigate the harmful effects of a Distributed Denial of Service (“DDoS”) attack on a computer system or network.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 11, 2012
    Inventor: Jacobus Van der Merwe
  • Patent number: 8245083
    Abstract: Methods and apparatus to debug a network application are described. A described example network includes a live control network to collect control messages to create a history of network states, the history of network states reflecting an order in which control messages are processed, the live control network to roll back from a current state to a past state upon detection of an improper sequence of messages and to process the messages in a corrected sequence, the corrected sequence to be stored in the history. The described example network further includes a virtualized network corresponding to the live control network, the virtualized network responsive to a command from an operator to step through the history to facilitate debugging.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: August 14, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Jacobus Van Der Merwe, Matthew Chapman Caesar, Chia-Chi Lin
  • Patent number: 8225399
    Abstract: A system and method for receiving a data packet including a destination address and a source address, categorizing the data packet into a community based on the source address, wherein the community is predefined by a user corresponding to the destination address and selecting a treatment for the data packet based on the community. The method may be implemented on a router to avoid and/or mitigate the harmful effects of a Distributed Denial of Service (“DDoS”) attack on a computer system or network.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: July 17, 2012
    Assignee: AT&T Intellectual Property II, LP
    Inventor: Jacobus Van der Merwe
  • Publication number: 20120158976
    Abstract: Methods and apparatus to migrate border gateway protocol sessions between routers are disclosed. An example method to migrate a border gateway protocol session from a first router to a second router disclosed herein comprises exporting a connection state to migrate a transport control protocol connection supporting the border gateway protocol session with a session endpoint from the first router to the second router, and after the transport control protocol connection has been migrated to the second router, announcing, from the first router to the second router, routes contained in an exported routing information base associated with the session endpoint, the second router to process the routes to migrate handling of the border gateway protocol session with the session endpoint to the second router.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Inventors: Jacobus Van der Merwe, Jennifer Rexford, Eric Robert Keller
  • Patent number: 8205253
    Abstract: Described is a system and method for receiving a data packet including a destination address and a source address, the data packet corresponding to a port number, assigning an address risk value for the data packet based on the source address and a port risk value for the data packet based on the port number. The data packet is categorized into a community based on the source address, wherein the community is predefined by a user corresponding to the destination address, the community includes a utility value. The address risk value and the port risk value are compared to the utility value to yield a benefit coefficient and the data packet is treated based on the benefit coefficient.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: June 19, 2012
    Assignee: AT & T Intellectual Property II, LP
    Inventors: Oliver Spatscheck, Jacobus Van der Merwe
  • Publication number: 20120147824
    Abstract: Methods and apparatus to configure virtual private mobile networks are disclosed. A disclosed example method includes receiving a request at a wireless network provider from a client, the request instructing the wireless network provider to create the virtual private mobile network for the client, identifying available network elements within a wireless network of the wireless network provider based on the request from the client, configuring a portion of a control plane and a portion of a data plane of the identified network elements for the virtual private mobile network, and enabling user equipment associated with the client to wirelessly communicatively couple to the virtual private mobile network.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 14, 2012
    Inventors: Jacobus Van der Merwe, Deepak K. Chawla, Gustavo de los Reyes, Seungjoon Lee
  • Publication number: 20120137287
    Abstract: A system is provided for migrating a VM over a WAN. A first server has a VM. The first and second servers are operatively connected over the WAN by a virtual private local area network service. The first server migrates the VM to the second server by coping files and state of the VM to the second server without interrupting the interactive software on the VM. During a last round of migrating the VM, for packets intended for the VM on the first server, the first server buffers the packets in a buffer as buffered packets. Instead of delivering the buffered packets to the VM, the first server transmits the buffered packets to the second server. The second server plays the buffered packets to the VM migrated to and operating on the second server, such that buffered packets are played before current packets currently received from the clients are played.
    Type: Application
    Filed: November 29, 2010
    Publication date: May 31, 2012
    Applicants: The Board of Trustees of The University of Illinois, AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Jeffrey Pang, Matthew Caesar, Virajith Jalaparti, Seungjoon Lee, Jacobus Van Der Merwe