公开(公告)号：US3770880A

公开(公告)日：1973-11-06

申请号：US3770880D

申请日：1972-05-15

Applicant: CIT ALCATEL

Inventor： LANTIER M

IPC: H04L12/14 ,  H04L15/26

CPC classification number: H04L12/1439 ,  H04L12/14

Abstract: A logic device for telegraphic call charge enabling or not enabling. The starting of the charging is dependent on the receipt of two successive signals; the first signal being a pulse having a determined length, the second signal being a character of the international code No. 2. The logic device comprises two series of gates establishing time references, the first series of said gates checking the reception of the first signal and the second series checking that of the second signal, the reception of the said second signal depending on that of the first.

Abstract translation: 用于电话呼叫充电的逻辑设备，使能或不启用。 充电的开始取决于接收到两个连续的信号; 所述第一信号是具有确定长度的脉冲，所述第二信号是国际编码No.2的字符。所述逻辑装置包括建立时间基准的两个门系列，所述门的第一系列检查所述第一信号的接收 并且第二系列检查第二信号，接收根据第一信号的所述第二信号。

公开(公告)号：SE376345B

公开(公告)日：1975-05-12

申请号：SE610272

申请日：1972-05-09

Applicant: CIT ALCATEL

Inventor： LANTIER M

IPC: H04L12/14 ,  H04L11/10

Abstract: A logic device for telegraphic call charge enabling or not enabling. The starting of the charging is dependent on the receipt of two successive signals; the first signal being a pulse having a determined length, the second signal being a character of the international code No. 2. The logic device comprises two series of gates establishing time references, the first series of said gates checking the reception of the first signal and the second series checking that of the second signal, the reception of the said second signal depending on that of the first.