公开(公告)号：EP0090802A4

公开(公告)日：1987-01-22

申请号：EP81902910

申请日：1981-10-14

Applicant: IBM

Inventor： DISBROW JOHN R ,  EISELEN EVERETT T ,  FINDLEY GERALD I ,  LUNING STEPHEN G ,  WANG DAVID T

IPC: G01C21/12 ,  G01C21/00 ,  G01C21/28 ,  G01C22/02 ,  G06F3/12 ,  G06K15/00

CPC classification number: G01C21/28 ,  G01C22/02 ,  G01C22/025 ,  G06F3/1295 ,  G06F3/1297 ,  G06K15/00 ,  G06K2215/0088

Abstract: A page (BASE PAGE) modification method in a printer subsystem of the partial page buffer composing type for generation of distinct copy groups (CG #1, CG #2, CG #3) or versions of a base page. A printer subsystem receives a packet containing a page of characters, coded overlays/elisions (OL #1, OL #2, S #1, S #2) and combining data from an external source. The packet is translated into a linked list of character placement representations for each of the doubly indexed coded characters within the page. Elisions (S #1, S #2) from the page are made by inhibiting the formation of a linked list segment for each character sequence within elision markers set out in the page. In contrast, coded character overlays are appended to the list as addenda. The list governs the placement of characters into a partial page buffer, whose contents are system accessible in row major order.

公开(公告)号：CA1332247C

公开(公告)日：1994-10-04

申请号：CA533597

申请日：1987-04-01

Applicant: IBM

Inventor： NG CHAN Y ,  OUCHI NORMAN K ,  WANG DAVID T ,  YU WELLINGTON C

IPC: G11B20/12 ,  G11B27/30

Abstract: ROTATING STORAGE DEVICE TRACK FORMAT EMULATION Disclosed is a method for recording a record that emulates a first recording format, which includes a track reference point, such as an index field, used for determining a position of a record on a track according to the first recording format, on a moving storage device operating according to a second recording format which also includes a track reference point. The invention comprises the steps, responsive to location information generated according to the first recording formats, of: (1) determining an original angular position of a record according to the first recording format; (2) calculating in response to the original angular position and a parameter a preferred angular position for the record according to the second recording format; (3) determining an actual angular position of the record recorded according to the second recording format; and (4) recording an extension of the record to compensate for the difference between the preferred angular position and the actual angular position.

公开(公告)号：DE3177063D1

公开(公告)日：1989-07-06

申请号：DE3177063

申请日：1981-10-14

Applicant: IBM

Inventor： DISBROW JOHN R ,  EISELEN EVERETT T ,  FINDLEY GERALD I ,  LUNING STEPHEN G ,  WANG DAVID T

IPC: G01C21/12 ,  G01C21/00 ,  G01C21/28 ,  G01C22/02 ,  G06F3/12 ,  G06K15/00