Patents by Inventor Juha Kemppainen

Juha Kemppainen 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).

  • Methods and equipment for fault tolerant IP service
    Patent number: 8468382
    Abstract: An Internet Protocol (IP) terminal, comprises communication means for communicating via an IP network, a processor and memory. The memory contains an operating software for the IP terminal and the processor is configured to execute the operating software. The operating software comprises a normal mode logic for implementing a normal mode operation and a restricted mode logic for implementing a restricted mode operation. The normal mode logic comprises program code for initiating a call of a first type under control of instructions from one or more dedicated servers. The restricted mode logic comprises program code for collecting connection information of other IP terminals and for initiating a call of a second type without instructions from the one or more dedicated servers.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: June 18, 2013
    Assignee: Elektrobit Wireless Communications Oy
    Inventors: Marko Holappa, Juha Kemppainen
  • Methods and Equipment for Fault Tolerant IP Service
    Publication number: 20110022885
    Abstract: An Internet Protocol (IP) terminal, comprises communication means for communicating via an IP network, a processor and memory. The memory contains an operating software for the IP terminal and the processor is configured to execute the operating software. The operating software comprises a normal mode logic for implementing a normal mode operation and a restricted mode logic for implementing a restricted mode operation. The normal mode logic comprises program code for initiating a call of a first type under control of instructions from one or more dedicated servers. The restricted mode logic comprises program code for collecting connection information of other IP terminals and for initiating a call of a second type without instructions from the one or more dedicated servers.
    Type: Application
    Filed: May 8, 2008
    Publication date: January 27, 2011
    Applicant: ELEKTROBIT WIRELESS COMMUNICATIONS OY
    Inventors: Marko Holappa, Juha Kemppainen
  • Method and apparatus for simulating radio channel
    Patent number: 7394880
    Abstract: A radio channel simulator configured to read radio channel data describing a radio channel and user data including at least one user signal, and to simulate the radio channel using a FIR filter comprising one or more FIR blocks for filtering the user data read based on radio channel data in connection with the simulation. The radio channel simulator is configured to transfer at least one FIR block at a delay level depicting a radio channel delay during simulation.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: July 1, 2008
    Assignee: JOT Automation Oy
    Inventors: Juha Kemppainen, Torsti Poutanen, Jussi Harju
  • Method and device for simulating radio channel
    Patent number: 7184720
    Abstract: The invention relates to a method and device for performing channel simulation, the device comprising a set of channel simulation units (200 to 214) for simulating a radio channel, each unit comprising radio frequency parts (200A to 214A) and baseband parts (200B to 214B). In the solution of the invention, the baseband parts of several different units (200 to 214) are arranged to simulate the same channel.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: February 27, 2007
    Assignee: Elektrobit Testing Oy
    Inventors: Torsti Poutanen, Jussi Harju, Ari Seppälä, Juha Kemppainen, Juha Meinilä, Tommi Jämsä
  • Method and apparatus for simulating radio channel
    Publication number: 20050008109
    Abstract: A radio channel simulator configured to read radio channel data describing a radio channel and user data including at least one user signal, and to simulate the radio channel using a FIR filter comprising one or more FIR blocks for filtering the user data read based on radio channel data in connection with the simulation. The radio channel simulator is configured to transfer at least one FIR block at a delay level depicting a radio channel delay during simulation.
    Type: Application
    Filed: May 25, 2004
    Publication date: January 13, 2005
    Inventors: Juha Kemppainen, Torsti Poutanen, Jussi Harju
  • Method and device for simulating radio channel
    Publication number: 20040088628
    Abstract: The invention relates to a method and device for performing channel simulation, the device comprising a set of channel simulation units (200 to 214) for simulating a radio channel, each unit comprising radio frequency parts (200A to 214A) and baseband parts (200B to 214B). In the solution of the invention, the baseband parts of several different units (200 to 214) are arranged to simulate the same channel.
    Type: Application
    Filed: August 20, 2003
    Publication date: May 6, 2004
    Inventors: Torsti Poutanen, Jussi Harju, Ari Seppl, Juha Kemppainen, Juha Meinil, Tommi Jms