公开(公告)号：US3582880A

公开(公告)日：1971-06-01

申请号：US3582880D

申请日：1969-12-05

Applicant: IBM

Inventor： BEAUSOLEIL WILLIAM F ,  ROHDE RICHARD S ,  SMITH RONALD M ,  ZEIGER HENRY

IPC: G06F11/16 ,  G06F11/00 ,  G08C25/00

CPC classification number: G06F11/1612

Abstract: A system for sending and receiving data and detecting data errors for correction which includes means for detecting an error in data as it is read from a tape or like device and means for forwarding the data with the error into a further storage point in the system where it is stored for a first time. A second cycle or storage of the data with the error in the storage point is called for, the data with error being arranged to distinguish it from the arrangement of the error data as it existed at the first time at the storage point. The two versions of the same data having error therein are compared to detect and correct the data in error.