公开(公告)号：CA1087755A

公开(公告)日：1980-10-14

申请号：CA277083

申请日：1977-04-25

Applicant: IBM

Inventor： CHEN TIEN C ,  ESWARAN KAPALI P ,  LUM VINCENT Y ,  TUNG CHIN

IPC: G11C11/14 ,  G06F7/24 ,  G11C19/00 ,  G11C19/08 ,  G06F7/36 ,  G06F13/00 ,  G11C11/02

Abstract: AN APPARATUS FOR TRANSPOSITION SORTING OF EQUAL LENGTH RECORDS IN OVERLAP RELATION WITH RECORD LOADING AND EXTRACTION An apparatus for sorting of equal length records with the sorting time maximally overlapped by the time taken for loading and unloading of records. The minimal structure consists of a decision mechanism linked to and associated with a network of ladder structures. The activity within the network is so synchronized that the sorting activity in most ladders occurs while some ladder within the network is still undergoing the loading of input data; and during the unloading phase, the individually sorted data from each ladder are merged concurrently to produce a sequence of sorted records. The overlap between sorting and loading varies from 0 for records requiring no loading/unloading, to 100% for multi-ladder networks with loading/unloading.

公开(公告)号：CA1122138A

公开(公告)日：1982-04-20

申请号：CA337032

申请日：1979-10-04

Applicant: IBM

Inventor： DURBECK ROBERT C ,  ESWARAN KAPALI P

IPC: B41J3/01 ,  B41J3/51 ,  G06K1/12 ,  G06K1/20 ,  G06K15/08 ,  G06K17/00 ,  B41J3/00

Abstract: Composer apparatus is disclosed in which machine readable representations of characters typed on the first part of a page are thereafter typed on a second part of the page. Key stroke signals generated by the typewriter keyboard are stored in a memory prior to being applied to access corresponding type ball positioning signals within a table to print the characters using a conventional type ball on the fir t portion of the page. Thereafter, the conventional type ball is replaced by a special type ball and the key stroke signals stored in the memory are used to access corresponding ones of a different set of type ball positioning signals within a second memory to enable the special type ball to type optically readable binary coded representations of the characters on the second part of the page. Each character is represented by a string of seven bits plus a parity bit which are typed using either a single strike of a group of eight bits on the special type ball or two different strikes using two different groups of four bits on the special type ball.

公开(公告)号：CA1130408A

公开(公告)日：1982-08-24

申请号：CA349792

申请日：1980-04-14

Applicant: IBM

Inventor： ESWARAN KAPALI P ,  HAMACHER VINCENT C ,  SHEDLER GERALD S

IPC: G06F13/376 ,  H04L12/417 ,  H04Q9/00

Abstract: Apparatus and method for enabling asynchronous, collision-free communication between ports on a local shared bus network which is efficient in the use of bus bandwidth and which, in one embodiment, provides a bounded, guaranteed time to transmission for each port. SA978074

公开(公告)号：FR2351452A1

公开(公告)日：1977-12-09

申请号：FR7711168

申请日：1977-04-05

Applicant: IBM

Inventor： CHEN TIEN C ,  ESWARAN KAPALI P ,  LUM VINCENT Y ,  TUNG CHIN

IPC: G11C11/14 ,  G06F7/24 ,  G11C19/00 ,  G11C19/08 ,  G06F7/04

Abstract: An apparatus for sorting of equal length records with the sorting time maximally overlapped by the time taken for loading and unloading of records. The minimal structure consists of a decision mechanism linked to and associated with a network of ladder structures. The activity within the network is so synchronized that the sorting activity in most ladders occurs while some ladder within the network is still undergoing the loading of input data; and during the unloading phase, the individually sorted data from each ladder are merged concurrently to produce a sequence of sorted records. The overlap between sorting and loading varies from 0 for records requiring no loading/unloading, to 100% for multi-ladder networks with loading/unloading.

公开(公告)号：DE2720376A1

公开(公告)日：1977-11-24

申请号：DE2720376

申请日：1977-05-06

Applicant: IBM

Inventor： CHEN TIEN CHI ,  ESWARAN KAPALI P ,  LUM VINCENT YU-SUN ,  TUNG CHIN

IPC: G11C11/14 ,  G06F7/24 ,  G11C19/00 ,  G11C19/08 ,  G06F7/02

Abstract: An apparatus for sorting of equal length records with the sorting time maximally overlapped by the time taken for loading and unloading of records. The minimal structure consists of a decision mechanism linked to and associated with a network of ladder structures. The activity within the network is so synchronized that the sorting activity in most ladders occurs while some ladder within the network is still undergoing the loading of input data; and during the unloading phase, the individually sorted data from each ladder are merged concurrently to produce a sequence of sorted records. The overlap between sorting and loading varies from 0 for records requiring no loading/unloading, to 100% for multi-ladder networks with loading/unloading.