Electrical computers and digital processing systems: support – Digital data processing system initialization or configuration
Reexamination Certificate
2004-07-07
2008-09-09
Lee, Thomas (Department: 2115)
Electrical computers and digital processing systems: support
Digital data processing system initialization or configuration
C713S002000, C713S100000
Reexamination Certificate
active
07424601
ABSTRACT:
Methods and systems for running multiple operating systems in a single embedded or mobile device (include PDA, cellular phone and other devices) are disclosed. The invention allows a mobile device that normally can only run a single operating system to run another operating system while preserving the state and data of the original operating system. Guest OS is packaged into special format recognizable by the host OS that still can be executed in place by the system. The Methods include: Change the memory protection bits for the original OS; Fake a reduced physical memory space for guest OS; Use special memory device driver to claim memories of host OS; Backup whole image of the current OS and data to external memory card.
REFERENCES:
patent: 4747040 (1988-05-01), Blanset et al.
patent: 5454110 (1995-09-01), Kannan et al.
patent: 5469573 (1995-11-01), McGill, III et al.
patent: 5764984 (1998-06-01), Loucks
patent: 5923874 (1999-07-01), Koenig
patent: 6047373 (2000-04-01), Hall et al.
patent: 6067618 (2000-05-01), Weber
patent: 6175917 (2001-01-01), Arrow et al.
patent: 6178503 (2001-01-01), Madden et al.
patent: 6269409 (2001-07-01), Solomon
patent: 6327653 (2001-12-01), Lee
patent: 6615303 (2003-09-01), Endo et al.
patent: 6715016 (2004-03-01), Ohno et al.
patent: 6944699 (2005-09-01), Bugnion et al.
patent: 6957286 (2005-10-01), Cohen
patent: 2001/0016879 (2001-08-01), Sekiguchi et al.
patent: 2002/0157001 (2002-10-01), Huang et al.
patent: 2002/0194241 (2002-12-01), Griffin et al.
patent: 2003/0093658 (2003-05-01), Wen et al.
patent: 2003/0145191 (2003-07-01), Park
patent: 2003/0154337 (2003-08-01), Ohno et al.
patent: 2004/0205755 (2004-10-01), Lescouet et al.
patent: 2395313 (2004-05-01), None
Bae Ji H
Lee Thomas
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