公开(公告)号：DE3575510D1

公开(公告)日：1990-02-22

申请号：DE3575510

申请日：1985-09-24

Applicant: IBM

Inventor： ASANO HIDEO ,  KANZAKI EISUKE ,  SHIMIZU YUTAKA

IPC: H04N1/417 ,  H04N1/411

Abstract: The bi-level image data supplied from an image supply means, such as an image scanner are pre-processed by the present invention, and the pre-processed image data are then supplied to a compression means, which compresses the image data under a conventional two-dimensional coding scheme, e.g. such as provided by the CCITT Recommendation T.4. The pre-process detects (3, 4, 5) a changing element in a first scan line and a changing element in a second scan line. It then determines (6, 7) whether the distance between the changing element in the first scan line and the changing element in the second scan line is falling within a predetermined range. The image data are re-arranged (8, 9, 10) so as to decrease the said distance to a predetermined smaller value when the distance is falling within the said predetermined range, and otherwise are preserved unchanged. The rearranged and the otherwise preserved image data are then supplied (11) to means for performing the compression.

公开(公告)号：CA1262279A

公开(公告)日：1989-10-10

申请号：CA484634

申请日：1985-06-20

Applicant: IBM

Inventor： ASANO HIDEO ,  KANZAKI EISUKE ,  SHIMIZU YUTAKA

IPC: H04N1/417 ,  H04N1/411

Abstract: The invention discloses a method for processing bi-level image data supplied from an image supply means, said bi-level image data being compressed under a two-dimensional coding scheme, comprising the steps of detecting a changing element in the first scan line and a changing element in the second scan line, determining whether a distance between said changing element in said first scan line and said changing element in said second scan line has fallen within a predetermined range, re-arranging said image data to decrease said distance to a predetermined distance when said distance has fallen within said predetermined range, and supplying said re-arranged image data to means for performing said compression.

公开(公告)号：DE3277939D1

公开(公告)日：1988-02-11

申请号：DE3277939

申请日：1982-02-10

Applicant: IBM

Inventor： SHIMIZU YUTAKA

IPC: G06F15/16 ,  G06F12/08 ,  G06F13/28 ,  G06F15/167 ,  G06F15/177 ,  H04N1/32 ,  G06F13/14

Abstract: A data process system incorporating a controlling processor (12) together with plural devices (2, 4, 6, 8, 10) intercommunicating via shared memory 16, such intercommunication being independent of but initialized by the controlling processor, wherein intercommunication control is exercised by the combination of… (a) a pointer table 20, the pointers in which are set by the controlling processor, are addressable by the devices and are indexed routinely in use,… (b) table entry identifier initialization in the devices by the controlling processor,… (c) control code (A CODE; P CODE) exchange between intercommunicating devices, independently of the shared memory, enabling access to the pointer table, and… (d) the pointers, as accessed, providing selective access to the shared memory.

公开(公告)号：JPS57153359A

公开(公告)日：1982-09-21

申请号：JP3802981

申请日：1981-03-18

Applicant: IBM

Inventor： SHIMIZU YUTAKA

IPC: G06F15/16 ,  G06F12/08 ,  G06F13/28 ,  G06F15/167 ,  G06F15/177 ,  H04N1/32

公开(公告)号：JPH05341918A

公开(公告)日：1993-12-24

申请号：JP11922692

申请日：1992-05-12

Applicant: IBM

Inventor： IWASA HIROYUKI ,  ASANO HIDEO ,  SHIMIZU YUTAKA

IPC: G06F3/06 ,  G06F11/16 ,  G06F11/20 ,  G06F12/16 ,  G11C29/00

Abstract: PURPOSE: To attain an information processing task with high reliability by executing a writing and reading operation only to a residual normal disk storage devices when any one of the disk storage devices breaks down. CONSTITUTION: A connector 101 is connected through a host SCSI bus 102 with a host SCSI adapter 103. The host SCSI adapter 103 is connected with a system bus in a host computer 104. The host SCSI adapter 103 has the best ID(identification code) = 7 in the host SCSI bus 102, and the connector 101 has ID=n ((n) is integers 0-6). Residual six SCSI, that is, SCSI devices having SCSI interfaces whose ID is 0-6 except (n) can be connected with the host SCSI bus 102. Then, when one of a pair of disk storage devices breaks down, the device which breaks down is separated, and a writing and reading operation is executed to the other normal disk storage.

公开(公告)号：JPS61102872A

公开(公告)日：1986-05-21

申请号：JP22229284

申请日：1984-10-24

Applicant: Ibm

Inventor： ASANO HIDEO ,  KANZAKI EISUKE ,  SHIMIZU YUTAKA

IPC: H04N1/417 ,  H04N1/411

CPC classification number: H04N1/411