Patents by Inventor Per Karlsen

Per Karlsen 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: 20060110302
    Abstract: The invention comprise a support system for catalyst gauzes in an ammonia oxidation burner and a method of reducing movement of particulate ceramic material due to thermal dilatation. The catalyst gauzes (1) and possibly support screens (2) are being supported by ceramic fillings contained in a burner basket with metal walls and a perforated bottom plate. A “wave breaker” (9, 11) is fixed to the metal wall (4) and/or the outer part/periphery of the bottom plate (5).
    Type: Application
    Filed: September 20, 2002
    Publication date: May 25, 2006
    Inventors: Halvor Oien, Leif Gronstad, Oystein Nirisen, Per Karlsen, Magne Slaen
  • Publication number: 20060068746
    Abstract: An integrated circuit includes an RF receiver has a direct-conversion down-converter and demodulator architecture with an integrated low noise amplifier (LNA) for operation in a frequency band of interest (cellular) and provisions for an off-chip LNA for operation in a second (higher) frequency band of interest (such as PCS). A baseband processor includes high-dynamic variable gain amplifiers and 7th-order elliptic low-pass filters. The IC also includes a 4 GHz PLL frequency synthesizer and a three wire series interface to external digital baseband circuits, such as a digital signal processor.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Inventors: Shen Feng, Madjid Hafizi, Qizheng Gu, Robert Ruth, Richard Schwab, Taoling Fu, Kim Schulze, Per Karlsen
  • Publication number: 20050013312
    Abstract: The present invention discloses a method of detecting overproduction of data when an H.323 endpoint is transmitting more video or other data than initially negotiated, and makes it produce less by utilizing standard flow control procedures. Flow control messages are sent periodically, incrementally instructing the H.323 endpoint to transmit lower amounts of bit rates, until the video rate received from the endpoint is equal to or lower than the initially negotiated rate, or some other fixed rate.
    Type: Application
    Filed: May 19, 2004
    Publication date: January 20, 2005
    Inventors: Per Karlsen, Olav Kalgraf