Patents by Inventor Jaakko Illmari Sertamo

Jaakko Illmari Sertamo 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 and apparatus for transferring data from a first domain to a second domain
    Patent number: 8930664
    Abstract: Data is written from a first domain to a FIFO memory buffer in a second domain. The first domain uses a first clock signal, the second domain uses a second clock signal and the memory buffer uses the first clock signal that is delivered alongside the data. The data is read from the memory buffer using the second clock signal. A read pointer is adjusted and synchronised with the delivered first clock signal. A token is generated using the delivered first clock signal, based on the read pointer. The token represents a capacity of the memory buffer having been made available. The token is passed to the first domain and synchronised with the first clock signal. The writing of data to the memory buffer is controlled based on a comparison between the synchronised token and a previously received token.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: January 6, 2015
    Assignee: Broadcom Corporation
    Inventors: Ari Tapani Kulmala, Jaakko Illmari Sertamo
  • Method and Apparatus for Transferring Data from a First Domain to a Second Domain
    Publication number: 20140052951
    Abstract: Data is written from a first domain to a FIFO memory buffer in a second domain. The first domain uses a first clock signal, the second domain uses a second clock signal and the memory buffer uses the first clock signal that is delivered alongside the data. The data is read from the memory buffer using the second clock signal. A read pointer is adjusted and synchronised with the delivered first clock signal. A token is generated using the delivered first clock signal, based on the read pointer. The token represents a capacity of the memory buffer having been made available. The token is passed to the first domain and synchronised with the first clock signal. The writing of data to the memory buffer is controlled based on a comparison between the synchronised token and a previously received token.
    Type: Application
    Filed: February 11, 2013
    Publication date: February 20, 2014
    Applicant: Renesas Mobile Corporation
    Inventors: Ari Tapani KULMALA, Jaakko Illmari Sertamo