公开(公告)号：US3564145A

公开(公告)日：1971-02-16

申请号：US3564145D

申请日：1969-04-30

Applicant: IBM

Inventor： DEUTSCH HERMAN ,  KNEPPER DELBERT M SR ,  GIESON WALTER D VAN JR ,  WARNER ARTHUR

IPC: H04L25/02 ,  G06F11/30 ,  H04J3/14 ,  H04L12/437

CPC classification number: H04J3/14 ,  H04L12/437

Abstract: Terminals in a serial loop data transmission system automatically monitor input data to detect no data and mutilated data conditions. When either condition is detected, signals including the unique terminal address are automatically generated. The generated signals satisfy all down stream terminals and the central controller within a predetermined time is provided with the address of the terminal immediately following the fault and an indication of the type of fault.

公开(公告)号：US3639694A

公开(公告)日：1972-02-01

申请号：US3639694D

申请日：1969-01-15

Applicant: IBM

Inventor： DEUTSCH HERMAN ,  STEWARD EDGAR H ,  GIESON WALTER D VAN JR

IPC: H04J3/24 ,  H04L5/22 ,  H04L12/423 ,  H04Q11/04 ,  H04J3/00

CPC classification number: H04L12/423

Abstract: A closed loop two-wire serial communications system for providing two-way communications between a plurality of serially connected terminal complexes and a central control station. The communications system including a plurality of time multiplexed channels each having switching or multiplexing information, control information and data to effect bidirectional data flow between the terminal complexes and the central.

Abstract translation: 一种用于在多个串联连接的终端复合体和中央控制站之间提供双向通信的闭环双线串行通信系统。 该通信系统包括多个时分多路复用通道，每个通道具有切换或多路复用信息，控制信息和数据，以实现终端复合体与中心之间的双向数据流。

公开(公告)号：US3573749A

公开(公告)日：1971-04-06

申请号：US3573749D

申请日：1969-03-28

Applicant: IBM

Inventor： SMITH WILLIAM R ,  SOUTHARD CARL D ,  GIESON WALTER D VAN JR

IPC: G06F13/10 ,  G06F3/023 ,  G06F3/048 ,  G06F9/00 ,  G06Q10/08 ,  G06Q99/00 ,  G07C1/10 ,  G07F7/08 ,  G06F3/04 ,  G06F3/14

CPC classification number: G06Q99/00 ,  G06F3/0489 ,  G06Q10/087 ,  G07C1/10 ,  G07F7/08 ,  G07F7/0833

Abstract: A display and control terminal which in response to operator initiation is utilized to display operator guidance information and control the insertion of data in conformity with the displayed guidance information.