Patents by Inventor Leif Karl Johansson

Leif Karl Johansson 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).

  • Static cache
    Patent number: 6865736
    Abstract: The present invention discloses a processor system comprising a processor (31) and at least a first memory (32) and a second memory (34, 36, 37). The first memory (32) is normally faster than the second one, and means for memory allocation (38, 41, 48) perform the periodically static allocation of data into the first memory (32). The means for memory allocation (38, 41, 48) are run-time updateable by software. An execution profiling section (39) is provided for continuously or intermittently providing execution data used for updating the means for memory allocation (38, 41, 48). According to the invention, the memory allocation is performed on a variable or record (49, 50) level. The means for memory allocation preferably use linking tables (41, 48) supporting dynamic software changes. The first memory (32) is preferably an SRAM, connected to the processor by a dedicated bus (33).
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 8, 2005
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Anders Holmberg, Peter Norrman, Leif Karl Johansson, Terje Egeland
  • Static cache
    Publication number: 20010021959
    Abstract: The present invention discloses a processor system comprising a processor (31) and at least a first memory (32) and a second memory (34, 36, 37). The first memory (32) is normally faster than the second one, and means for memory allocation (38, 41, 48) perform the periodically static allocation of data into the first memory (32). The means for memory allocation (38, 41, 48) are run-time updateable by software. An execution profiling section (39) is provided for continuously or intermittently providing execution data used for updating the means for memory allocation (38, 41, 48). According to the invention, the memory allocation is performed on a variable or record (49, 50) level. The means for memory allocation preferably use linking tables (41, 48) supporting dynamic software changes. The first memory (32) is preferably an SRAM, connected to the processor by a dedicated bus (33).
    Type: Application
    Filed: February 16, 2001
    Publication date: September 13, 2001
    Inventors: Per Anders Holmberg, Peter Norrman, Leif Karl Johansson, Terje Egeland