Patents by Inventor Vesa Köppä

Vesa Köppä 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).

  • Method for transmitting a digital audio signal
    Patent number: 6202109
    Abstract: The invention relates to a method for transmitting a digital audio signal between an electronic device (1) and an expansion card (13) connected to a expansion card connection (8a) in the electronic device. The expansion card (13) comprises at least one data transmission bus (20) for transmitting control and data signals, means (16) for processing digital signals, and an expansion card connection (8b). The expansion card (13) comprises further a second data transmission bus (21), wherein digital audio signals are transmitted via said second data transmission bus (21).
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: March 13, 2001
    Assignee: Nokia Mobile Phones Limited
    Inventors: Jouko Salo, Ari Aho, Riku Rimpelä, Vesa Köppä
  • System and method for supplying power to an expansion card
    Patent number: 6184592
    Abstract: A method and system for the arrangement of a power supply with an expansion card which can be connected to an electronic device and comprises at least a first and a second circuit. The power supply is arranged in at least two stages, wherein at the first stage, at least one operating voltage (Vcc) is connected to the first circuit, and at the second stage, the at least one operating voltage (Vcc) is connected to the second circuit.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: February 6, 2001
    Assignee: Nokia Mobile Phones Limited
    Inventors: Jyri Rauhala, Sami Inkinen, Markus Suomi, Olli-Pekka Lunden, Martti Ojanen, Vesa Köppä, Ari Aho, Janne Kuusinen, Jouni Rapakko