公开(公告)号：DE69223287D1

公开(公告)日：1998-01-08

申请号：DE69223287

申请日：1992-07-01

Applicant: IBM

Inventor： SAKAUE YOSHINORI ,  NIIJIMA HIDETO

IPC: G06F3/08 ,  G06F3/06 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/12 ,  G11C16/02 ,  G11C16/10 ,  G11C16/34 ,  G11C17/00

Abstract: To provide an external storage system using a semiconductor memory in which the data reading and writing between the host CPU can be processed faster than the conventional magnetic disk, and only a particular sector is not frequently written and erased so that the whole memory is effectively used over a long period of time, an address control scheme is introduced in which flexibility is given to the address relation between the host CPU and the external storage and the physical address of the semiconductor memory is not one-sidedly determined by the logical address possessed by the command of the host CPU.

公开(公告)号：DE69223287T2

公开(公告)日：1998-05-28

申请号：DE69223287

申请日：1992-07-01

Applicant: IBM

Inventor： SAKAUE YOSHINORI ,  NIIJIMA HIDETO

IPC: G06F3/08 ,  G06F3/06 ,  G06F12/00 ,  G06F12/02 ,  G06F12/08 ,  G06F12/12 ,  G11C16/02 ,  G11C16/10 ,  G11C16/34 ,  G11C17/00

Abstract: To provide an external storage system using a semiconductor memory in which the data reading and writing between the host CPU can be processed faster than the conventional magnetic disk, and only a particular sector is not frequently written and erased so that the whole memory is effectively used over a long period of time, an address control scheme is introduced in which flexibility is given to the address relation between the host CPU and the external storage and the physical address of the semiconductor memory is not one-sidedly determined by the logical address possessed by the command of the host CPU.

公开(公告)号：DE3585581D1

公开(公告)日：1992-04-16

申请号：DE3585581

申请日：1985-07-09

Applicant: IBM

Inventor： SAKAUE YOSHINORI ,  SUGIMOTO KAZUTOSHI

IPC: G06T5/30 ,  G06F15/68

Abstract: To materialize such high speed line-thinning a picture to be processed is divided into a plurality of sections, and the line-thinning processing is controlled on the basis of said sections. That is, the scanning for line-thinning is performed for each section. When points are removed in the scanning, incomplete areas that require further line-thinning are extracted basing on positions where the points are removed. On the other hand, if the point removal is not performed in that scanning for a section, the line-thinning is completed for that section. In the next scanning, scanning for line-thinning is not performed for all of sections, but is done for an area that contains the incomplete areas and is smaller than the section and is variably determined according to the incomplete area. Thus, the area to be scanned is reduced and dynamically controlled. It is because the incomplete area becomes more and more small as the scanning is repeated, so that the area variably determined according to the incomplete area also becomes smaller. The condition to terminate all processes for line-thinning is when it is determined that the line-thinning is completed for all sections after checking all of them.