Patents by Inventor Ritva Sirén

Ritva Sirén 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: 8090858
    Abstract: Provided are improved SIP communication systems and methods for traversing firewalls, NATs, and ALGs. An encapsulation protocol is used to preserve the original SIP message by encapsulating the original SIP message in visible encapsulation protocol of layers 4+. An encapsulated SIP message is decapsulated after transparently traversing a firewall, NAT, and/or ALG.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: January 3, 2012
    Assignee: Nokia Siemens Networks OY
    Inventors: Petteri Pöyhönen, Ritva Siren
  • Patent number: 7599374
    Abstract: A system for establishing an Internet Protocol (IP) connection with a terminating node includes an originating node capable of initiating communication with the terminating node. The system also includes an intermediate node located between the originating node and the terminating node. The originating node is capable of initiating communication by either (a) requesting communication with the terminating node via the intermediate node, or (b) notifying the terminating node of incoming data independent of the intermediate node. In this regard, when the originating node initiates communication in accordance with (a), either the originating node or the intermediate node is capable of notifying the terminating node of incoming data. Upon being notified of incoming data, then, the terminating node is capable of registering with the intermediate node to thereby establish an IP connection between the originating node and the terminating node via the intermediate node.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: October 6, 2009
    Assignee: Nokia Corporation
    Inventors: Petteri Pöyhönen, Seppo Pohja, Ritva Sirén, Jean-Francois Maion, Jari Mononen, Petri Nykänen
  • Patent number: 7305252
    Abstract: In response to a request by a mobile terminal for an information resource associated with a generic service name, one wireless network provides an IP address for a first provider of information. Another wireless network, in response to the same generic service name, provides an IP address for a different information provider. Other wireless networks will provide addresses for still other providers. Upper level generic service names include one or more hierarchically-arranged lower levels of generic service names. This tree of generic service names is used to create, in a consistent manner in different wireless networks, a generic directory of accessible information resources. In certain embodiments, a mobile terminal determines its location and provides location information with (or in connection with) a generic service name.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: December 4, 2007
    Assignee: Nokia Corporation
    Inventors: Lysaa Britt, Jean-Francois Maion, Ritva Sirén
  • Publication number: 20060078096
    Abstract: Provided are improved SIP communication systems and methods for traversing firewalls, NATs, and ALGs. An encapsulation protocol is used to preserve the original SIP message by encapsulating the original SIP message in visible encapsulation protocol of layers 4+. An encapsulated SIP message is decapsulated after transparently traversing a firewall, NAT, and/or ALG.
    Type: Application
    Filed: July 23, 2004
    Publication date: April 13, 2006
    Inventors: Petteri Poyhonen, Ritva Siren
  • Publication number: 20050201370
    Abstract: A system for establishing an Internet Protocol (IP) connection with a terminating node includes an originating node capable of initiating communication with the terminating node. The system also includes an intermediate node located between the originating node and the terminating node. The originating node is capable of initiating communication by either (a) requesting communication with the terminating node via the intermediate node, or (b) notifying the terminating node of incoming data independent of the intermediate node. In this regard, when the originating node initiates communication in accordance with (a), either the originating node or the intermediate node is capable of notifying the terminating node of incoming data. Upon being notified of incoming data, then, the terminating node is capable of registering with the intermediate node to thereby establish an IP connection between the originating node and the terminating node via the intermediate node.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 15, 2005
    Applicant: Nokia Corporation
    Inventors: Petteri Poyhonen, Seppo Pohja, Ritva Siren, Jean-Francois Maion, Jari Mononen, Petri Nykanen
  • Publication number: 20050124382
    Abstract: In response to a request by a mobile terminal for an information resource associated with a generic service name, one wireless network provides an IP address for a first provider of information. Another wireless network, in response to the same generic service name, provides an IP address for a different information provider. Other wireless networks will provide addresses for still other providers. Upper level generic service names include one or more hierarchically-arranged lower levels of generic service names. This tree of generic service names is used to create, in a consistent manner in different wireless networks, a generic directory of accessible information resources. In certain embodiments, a mobile terminal determines its location and provides location information with (or in connection with) a generic service name.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Applicant: Nokia Corporation
    Inventors: Lysaa Britt, Jean-Francois Maion, Ritva Siren
  • Publication number: 20050086065
    Abstract: Systems and methods that utilize a data structure that includes text segments separated by field separators and that include one or more meta tags are provided. Meta tags may be used to expand the text segments according to predefined rules. The rules may include creating hyperlinks, formatting text, performing a search of a database or other operations. The disclosed data structure optimizes the limited storage capacity of product tags.
    Type: Application
    Filed: October 16, 2003
    Publication date: April 21, 2005
    Applicant: Nokia Corporation
    Inventors: Jean-Francois Maion, Ritva Siren
  • Patent number: 6763236
    Abstract: A method, network element, communication device and system of allocating resources and transmitting a service to several subscribers. The system comprises a server (Srv1, Srv2) for providing a service, a wireless network (AN1-AN3) for communicating said service in channels over an air interface, and terminals (MN1, MN2) of said wireless network for receiving the service in a channel over the air interface. The system comprises a first subset of the channels allocated to individual point-to-point user channels having a single terminal as recipient, and a second subset of the channels allocated to group channels being capable of having multiple terminals as recipients.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: July 13, 2004
    Assignee: Nokia Mobile Phones, Ltd.
    Inventor: Ritva Sirén
  • Publication number: 20020006801
    Abstract: A method, network element, communication device and system of allocating resources and transmitting a service to several subscribers. The system comprises a server (Srv1, Srv2) for providing a service, a wireless network (AN1-AN3) for communicating said service in channels over an air interface, and terminals (MN1, MN2) of said wireless network for receiving the service in a channel over the air interface. The system comprises a first subset of the channels allocated to individual point-to-point user channels having a single terminal as recipient, and a second subset of the channels allocated to group channels being capable of having multiple terminals as recipients.
    Type: Application
    Filed: June 25, 2001
    Publication date: January 17, 2002
    Inventor: Ritva Siren