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    • 2. 发明授权
    • Method for emitting additional information in conjunction with message
signals to be transmitted over a data switching center
    • 与通过数据交换中心发送的消息信号一起发出附加信息的方法
    • US4497976A
    • 1985-02-05
    • US466628
    • 1983-02-15
    • Norbert TorgglerDietmar Franz
    • Norbert TorgglerDietmar Franz
    • H04L12/52H04L13/08
    • H04L12/52
    • Additional information is transmitted, in conjunction with message signals which are transmitted over a data switching center belonging to a public switched network. The data switching center is connected to teleprinter subscriber stations and teletex subscriber stations which are capable of transmitting and receiving message signals in accordance with different transmission procedures. The transmission of message signals between the subscriber stations occurs over at least one signal converter connected to the data switching center. After an occupation of the signal converter proceeding from a teleprinter subscriber station, the corresponding digital information are deposited in a memory of the signal converter by the data switching center upon each attempt to establish a connection from the signal converter to a teletex subscriber station. Under certain conditions, together with the message signal transmitted by the teleprinter subscriber station and contained in the signal converter, the additional information are emitted from the memory to the teletex subscriber station after a successful completion of a connection between the signal converter and the teletex subscriber station.
    • 结合通过属于公共交换网络的数据交换中心发送的消息信号来传送附加信息。 数据交换中心连接到能够根据不同传输过程发送和接收消息信号的电传打印机用户台和电信用户台。 消息信号在用户站之间的传输发生在连接到数据交换中心的至少一个信号转换器上。 在从电传打印机用户站进行的信号转换器的占用之后,当每次尝试建立从信号转换器到teletex用户站的连接时,相应的数字信息由数据交换中心存储在信号转换器的存储器中。 在特定条件下,连同电传打印机用户台发送并包含在信号转换器中的消息信号,在信号转换器和teletex用户之间的连接成功完成之后,附加信息从存储器发送到teletex用户站 站。
    • 6. 发明授权
    • Circuit arrangement for connecting telex subscriber stations to teletex
subscriber stations which are connected to the same data exchange system
    • 将电报用户站连接到连接到相同数据交换系统的电信用户站的电路布置
    • US4430525A
    • 1984-02-07
    • US338005
    • 1982-01-08
    • Dietmar FranzNorbert Torggler
    • Dietmar FranzNorbert Torggler
    • H04L12/52H04L13/08
    • H04L12/52
    • A data exchange system is connected to at least one signal converter in which digital signals emitted from teletex subscriber stations are converted so that they may be processed by teletex subscriber stations, and vice-versa. In order that the load on the signal converters may be as low as possible in the event that digital signals cannot be deposited in the desired subscriber station, the data exchange system is additionally connected to at least two special teletex transmitting/receiving devices. These teletex transmitting/receiving devices can be operated by a special call signal only in the event that a teletex subscriber station or a signal converter is currently unable to deposit digital signals in the desired subscriber station. In response to such operation of the teletex transmitting/receiving devices, the latter is supplied with digital signals which cannot currently be deposited, together with additional information which enable the establishment of a connection to the desired subscriber station. Subsequently, the teletex transmitting/receiving device is able to transmit the digital signals which it has received, on the basis of the additional information, to the desired subscriber station.
    • 数据交换系统连接到至少一个信号转换器,其中从teletex用户站发射的数字信号被转换,使得它们可以被teletex用户站处理,反之亦然。 为了在数字信号不能被存储在期望的用户站中的情况下,信号转换器上的负载可能尽可能低,数据交换系统另外连接到至少两个特殊的电信发送/接收设备。 只有当teletex用户站或信号转换器当前无法在期望的用户站中存储数字信号时,才能通过专用呼叫信号来操作这些teletex发送/接收设备。 响应于电信发送/接收设备的这种操作,后者被提供有无法存储的数字信号以及能够建立到期望用户站的连接的附加信息。 随后,电信发送/接收设备能够根据附加信息将所接收的数字信号发送到期望的用户台。