Image forming device

Details Image forming device Image forming device

2011-03-22

2011-03-22

Pham, Thierry L (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Memory

C358S001100, C358S001130

Reexamination Certificate

active

07911639

ABSTRACT:
A method that enables an image forming device of efficient memory sharing between processes and a kernel in a simple multiple-process-configuration. The image forming device has a real address space including a DMA buffer area and a shared memory area, a virtual address spaces, and job page assurance (JPA) programs. The virtual address spaces of the executing processes are mapped onto the real address space. The DMA buffer area can be accessed by the kernel. The shared memory area stores a job list and a job management list. The processes in the virtual address spaces include identical JPA libraries. Each of the JPA libraries requests the kernel to allocate of one page non-compressed data memory size for the job in the DMA buffer area, and upon completion of the job output, requests the kernel to release the allocated area and alters the contents in the job management list accordingly.

REFERENCES:
patent: 2002/0054326 (2002-05-01), Morita
patent: 2006/0158675 (2006-07-01), Morita
patent: 2006/0164670 (2006-07-01), Morita
patent: 2002 84383 (2002-03-01), None
patent: 2003 248626 (2003-09-01), None

Affiliated with

Also associated with

Rating

Image forming device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2706310