Patents by Inventor Hiromitu Nishimura

Hiromitu Nishimura 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 maintaining a suspension state after powering down and fully powering down upon expiration of a timer or low battery level
    Patent number: 7523326
    Abstract: It is an object of the present invention to shorten the time needed to start when a cellular phone is switched on. If a power key is switched off during operation, the display of an LCD is switched off, and key interrupts and the like are masked. In this case, data in the middle of the process of an application program in execution, execution addresses and the like are stored, and shift to a suspension state is signaled notified to a baseband unit. The CPU of an application unit is set to a deep sleep mode, and the cellular phone waits for a start instruction from the baseband unit.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: April 21, 2009
    Assignee: Fujitsu Limited
    Inventors: Kiyoshi Miyazaki, Kinya Inoue, Hiromitu Nishimura, Masaru Tsurusaki, Yoshio Nishinaga
  • Cellular phone and operational mode switching method thereof
    Publication number: 20060068855
    Abstract: It is an object of the present invention to shorten the time needed to start when a cellular phone is switched on. If a power key is switched off during operation, the display of an LCD is switched off, and key interrupts and the like are masked. In this case, data in the middle of the process of an application program in execution, execution addresses and the like are stored, and shift to a suspension state is signalled notified to a baseband unit. The CPU of an application unit is set to a deep sleep mode, and the cellular phone waits for a start instruction from the baseband unit.
    Type: Application
    Filed: January 3, 2005
    Publication date: March 30, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Kiyoshi Miyazaki, Kinya Inoue, Hiromitu Nishimura, Masaru Tsurusaki, Yoshio Nishinaga