Patents by Inventor Norihisa Isogai

Norihisa Isogai 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).

  • Program loader operable to verify if load-destination information has been tampered with, processor including the program loader, data processing device including the processor, promgram loading method, and integrated circuit
    Patent number: 8127144
    Abstract: A program loader for loading a program onto a memory in accordance with load-destination information. The program loader including an obtaining unit obtaining the load-destination information from a recording medium in which the program is recorded, a verifying unit verifying whether or not the load-destination information has been tampered with, and a loading unit loading the program. The load-destination information indicates a memory area which is part of an address space in the memory, wherein an execution image of the program is to be stored in the address space, and if when the verifying unit verifies that the load-destination information has not been tampered with, the loading unit generates, as the loading of the program, the execution image in the memory area indicated by the load-destination information, such that the execution image is executed.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: February 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Norihisa Isogai, Takeshi Saijo, Takashi Suzuki
  • ACCESS CONTROL APPARATUS, ACCESS CONTROL PROGRAM, AND ACCESS CONTROL METHOD
    Publication number: 20110055841
    Abstract: When a new program is set to start processing using a resource such as a memory, and the resource has been allocated to another program, which is currently running, an access control apparatus 100 stops the running program and causes the new program to use the resource if the priority of the new program is higher than the priority of the running program.
    Type: Application
    Filed: June 2, 2009
    Publication date: March 3, 2011
    Inventors: Yuuki Senno, Seiji Sakaki, Norihisa Isogai, Chiyomi Hoshino, Isao Higashide
  • Program loader operable to verify if load-destination information has been tampered with, processor including the program loader, data processing device including the processor, program loading method, and integrated circuit
    Publication number: 20070083768
    Abstract: A program loader-for loading a program onto a memory in accordance with load-destination information, the program loader including: an obtaining unit operable to obtain the load-destination information from a recording medium in which the program is recorded; a verifying unit operable to verify whether or not the load-destination information has been tampered with; and a loading unit operable to load the program. The load-destination information indicates a memory area which is part of an address space in the memory, wherein an execution image of the program is to be stored in the address space, and if the verifying unit verifies that the load-destination information has not been tampered with, the loading unit generates, as the loading of the program, the execution image in the memory area indicated by the load-destination information, such that the execution image is executed.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 12, 2007
    Inventors: Norihisa Isogai, Takeshi Saijo, Takashi Suzuki