公开(公告)号：DE1286072B

公开(公告)日：1969-01-02

申请号：DEJ0020430

申请日：1961-08-21

Applicant: IBM

Inventor： RANDALL DOTY SEN CHARLES ,  HERMAN COCKOWSKI VINCENT ,  GEORGE EVANICK ,  JOSEPH SMITH ,  ALLAN TATE LAWRENCE

IPC: H04L7/02 ,  H04L25/02

Abstract: 972,058. Telegraphy. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 11, 1961 [Aug. 25, 1960], No. 3172/63. Divided out of 972,057. Drawings to Specification. Heading H4P. The description is identical to that in Specification 972,057 which is referred to, but the claims relate to the feature that each transmitted record is preceded by a bit which indicates the parity of the ordinal number of the record.