Patents by Inventor Stefan E. Janhunen

Stefan E. Janhunen 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).

  • Patent number: 10642730
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 5, 2020
    Assignee: Citrix Systems International GmbH
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Publication number: 20190220398
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Patent number: 10210081
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 19, 2019
    Assignee: Citrix Systems International GmbH
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Publication number: 20170168932
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 15, 2017
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Patent number: 9558113
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 31, 2017
    Assignee: Citrix Systems International GmbH
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Publication number: 20160203076
    Abstract: Methods and systems for performing garbage collection involving sensitive information on a mobile device are described herein. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Application
    Filed: March 23, 2016
    Publication date: July 14, 2016
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Patent number: 9311237
    Abstract: A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: April 12, 2016
    Assignee: Citrix Systems International GmbH
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Patent number: 9203565
    Abstract: A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process is configured to receive data for transfer to the remote receiver station, divide the source data into a collection source packets, and encode the data using a fountain code encoding protocol to form a series of encoded packets. The voice band modem is also configured to transmit the series of encoded packets to the remote receiver station as a burst including all of the source data and repeatedly transmit the encoded packets until receiving an indication that the series of packets including all of the source data has been received at the receiving station.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: December 1, 2015
    Assignee: BlackBerry Limited
    Inventors: Sean Bartholomew Simmons, Stefan E. Janhunen, David Stuart Furbeck
  • Publication number: 20150234743
    Abstract: A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Application
    Filed: March 2, 2015
    Publication date: August 20, 2015
    Inventors: Herbert Anthony Little, Neil Patrick Adams, Stefan E. Janhunen, John Fredric Arthur Dahms
  • Patent number: 8973148
    Abstract: A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: March 3, 2015
    Assignee: BlackBerry Limited
    Inventors: Herbert A. Little, Neil P. Adams, Stefan E. Janhunen, John F. A. Dahms
  • Patent number: 8966246
    Abstract: A method for handling digital certificate status requests between a client system and a proxy system is provided. The method includes the steps of receiving at the proxy system digital certificate status request data transmitted from the client system and generating query data for the digital certificate status in response to receiving the digital certificate status request data. The query data is transmitted to a status provider system, and status data from the status provider system in response to the query data is received at the proxy system. Digital certificate status data based on the status data received is generated and transmitting to the client system.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 24, 2015
    Assignee: BlackBerry Limited
    Inventors: Herbert A. Little, Stefan E. Janhunen
  • Patent number: 8918071
    Abstract: A system and method to be used with first and second devices where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the first device, when data is to be transmitted from the first device to the second device, receiving at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes from the subset, the portion of the trigger signal received being a received trigger signal, analyzing the received trigger signal to identify one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device and transmitting the data from the f
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: December 23, 2014
    Assignee: Blackberry Limited
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Patent number: 8897213
    Abstract: A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data using a fountain code encoding protocol to form a series encoded packets, and repeatedly transmit the encoded packets until receiving an indication that the series of packets has been received at the receiving station.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: November 25, 2014
    Assignee: BlackBerry Limited
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Publication number: 20130148705
    Abstract: A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data to form a series of encoded packets, and transmit the encoded packets to the remote receiver station using a first modulation scheme. Thereafter, unless an indication that the series of packets has been received by at the receiving station is provided, the voice-band modem automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme.
    Type: Application
    Filed: February 13, 2013
    Publication date: June 13, 2013
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Publication number: 20130122818
    Abstract: A system and method to be used with first and second devices where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the first device, when data is to be transmitted from the first device to the second device, receiving at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes from the subset, the portion of the trigger signal received being a received trigger signal, analyzing the received trigger signal to identify one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device and transmitting the data from the f
    Type: Application
    Filed: January 4, 2013
    Publication date: May 16, 2013
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Patent number: 8423763
    Abstract: A method and system for supporting multiple digital certificate status information providers are disclosed. An initial service request is prepared at a proxy system client module and sent to a proxy system service module operating at a proxy system. The proxy system prepares multiple service requests and sends the service requests to respective multiple digital certificate status information providers. One of the responses to the service requests received from the status information providers is selected, and a response to the initial service request is prepared and returned to the proxy system client module based on the selected response.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: April 16, 2013
    Assignee: Research In Motion Limited
    Inventors: Herbert A. Little, Stefan E. Janhunen, Dale J. Hobbs
  • Patent number: 8385947
    Abstract: A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data to form a series of encoded packets, and transmit the encoded packets to the remote receiver station using a first modulation scheme. Thereafter, unless an indication that the series of packets has been received by at the receiving station is provided, the voice-band modem automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: February 26, 2013
    Assignee: Research In Motion Limited
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Publication number: 20130044628
    Abstract: A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process is configured to receive data for transfer to the remote receiver station, divide the source data into a collection source packets, and encode the data using a fountain code encoding protocol to form a series of encoded packets. The voice band modem is also configured to transmit the series of encoded packets to the remote receiver station as a burst including all of the source data and repeatedly transmit the encoded packets until receiving an indication that the series of packets including all of the source data has been received at the receiving station.
    Type: Application
    Filed: October 25, 2012
    Publication date: February 21, 2013
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Patent number: 8351872
    Abstract: A system and method to be used with first and second devices where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the first device, when data is to be transmitted from the first device to the second device, receiving at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes from the subset, the portion of the trigger signal received being a received trigger signal, analyzing the received trigger signal to identify one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device and transmitting the data from the f
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: January 8, 2013
    Assignee: Research In Motion Limited
    Inventors: Sean Simmons, Stefan E. Janhunen, David S. Furbeck
  • Publication number: 20120290809
    Abstract: A method and system for performing garbage collection involving sensitive information on a mobile device. Secure information is received at a mobile device over a wireless network. The sensitive information is extracted from the secure information. A software program operating on the mobile device uses an object to access the sensitive information. Secure garbage collection is performed upon the object after the object becomes unreachable.
    Type: Application
    Filed: July 24, 2012
    Publication date: November 15, 2012
    Applicant: Research In Motion Limited
    Inventors: Herbert A. Little, Neil P. Adams, Stefan E. Janhunen, John F.A. Dahms