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公开(公告)号：US4601035A
公开(公告)日：1986-07-15
申请号：US538158
申请日：1983-10-03
CPC分类号： H04Q11/0428 , H04L29/06 , H04L69/324
摘要： A data communication method and circuitry which uses a compatible subset of a standard high level data link control (HDLC) protocol to control link level communication between a digital terminal and a switch. The use of the subset of HDLC protocol reduces the complexity of the digital terminal design while maintaining communication compatibility with a switch which uses either the standard HDLC protocol or the subset of HDLC protocol.
摘要翻译： 一种数据通信方法和电路，其使用标准高级数据链路控制（HDLC）协议的兼容子集来控制数字终端和交换机之间的链路级通信。 HDLC协议子集的使用降低了数字终端设计的复杂性，同时保持与使用标准HDLC协议或HDLC协议子集的交换机的通信兼容性。
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公开(公告)号：US4607364A
公开(公告)日：1986-08-19
申请号：US549739
申请日：1983-11-08
CPC分类号： H04M11/068
摘要： A data transmission system that can controllably transmit data in three different modes between connected data devices. The first mode transmits data at a 64 Kbps rate. The second mode transmits data at a 56 Kbps rate plus control signals at an 8 Kbps rate. The third mode transmits data and control messages at a rate of up to 50 Kbps between connected terminals or other data devices. For all modes, the data is transmitted by inserting it one byte at a time into an information field of successive ones of cyclically reoccurring time multiplexed frames.
摘要翻译： 一种数据传输系统，可以在连接的数据设备之间以三种不同的模式可控地传输数据。 第一种模式以64 Kbps速率传输数据。 第二模式以56Kbps速率加上8Kbps速率的控制信号。 第三模式在连接的终端或其他数据设备之间以高达50Kbps的速率发送数据和控制消息。 对于所有模式，通过将一个字节一次插入到循环重复的时间复用帧的连续循环的信息字段中来发送数据。
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公开(公告)号：US4512017A
公开(公告)日：1985-04-16
申请号：US464058
申请日：1983-02-04
CPC分类号： H04M1/253 , H04Q11/0428
摘要： There is disclosed a digital telephone having dual voice and data handling capability over a single communication line. Time separated information channels are used to transport the voice and data information between the terminal and the main processor. A separate signaling channel is shared between the two information channels and information on the signaling channel is accumulated for distribution to either the voice device or the data device in accordance with address information contained within the accumulated signaling channel message.
摘要翻译： 公开了在单个通信线路上具有双语音和数据处理能力的数字电话。 时间分离的信息通道用于在终端和主处理器之间传输语音和数据信息。 在两个信息信道之间共享单独的信令信道，并且根据包含在累积的信令信道消息中的地址信息，累积用于分发给语音设备或数据设备的信令信道的信息。
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公开(公告)号：US4512016A
公开(公告)日：1985-04-16
申请号：US464057
申请日：1983-02-04
申请人： Emanuel J. Fulcomer, Jr. , Richard J. Nici , Vance E. Poteat , George W. Schramm , John B. Sharp , Michael M. Winseck, Jr.
发明人： Emanuel J. Fulcomer, Jr. , Richard J. Nici , Vance E. Poteat , George W. Schramm , John B. Sharp , Michael M. Winseck, Jr.
CPC分类号： H04M1/253 , H04Q11/0428
摘要： There is disclosed a processor controlled digital communication device which accepts message commands from a communication system as part of a communication protocol. These command messages are stripped from the protocol and combined within the communication device to control signaling thereat. Multi-bit time separated information (I) fields are used together with a single bit signaling (S) field. The S field bits are compiled over several frames to become the command messages.
摘要翻译： 公开了一种处理器控制的数字通信设备，其接收来自通信系统的消息命令作为通信协议的一部分。 这些命令消息从协议中剥离，并在通信设备内组合以控制信令。 多位时间分离信息（I）字段与单个位信令（S）字段一起使用。 S字段位通过多个帧编译成命令消息。
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公开(公告)号：US5255314A
公开(公告)日：1993-10-19
申请号：US677546
申请日：1991-03-29
摘要： A switch-adjunct integration device uses multiple line appearances of one or more digital telephone lines to gather information on calls destined for an adjunct voice-mail system, to transfer the calls to analog phone lines leading to the voice-mail system, and to detect call completions. Call completion is detected by bridging some of the line appearances to the analog phone lines and monitoring the bridged line appearances for call status reported thereon by the switch. Call-related information, including call completion, is reported from the integration device to the voice mail system over a control link. The analog phone lines are connected to the voice mail system through switch relays on the integration device. The integration device momentarily opens a relay when it detects call completion on the connected analog line to further enhance call-completion signaling.
摘要翻译： 交换机辅助集成设备使用一个或多个数字电话线路的多个线路外观来收集关于发往附加语音邮件系统的呼叫的信息，将呼叫转移到通向语音邮件系统的模拟电话线路，并且检测 通话完成。 通过将一些线路外观桥接到模拟电话线路并监视由交换机报告的呼叫状态的桥接线路外观来检测呼叫完成。 呼叫相关信息，包括呼叫完成，通过控制链路从集成设备报告给语音信箱系统。 模拟电话线通过集成设备上的开关继电器连接到语音信箱系统。 当集成设备在连接的模拟线路上检测到呼叫完成时，会立即打开一个继电器，以进一步增强呼叫完成信号。
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公开(公告)号：US4534023A
公开(公告)日：1985-08-06
申请号：US539813
申请日：1983-10-07
申请人： Stephen R. Peck , John B. Sharp
发明人： Stephen R. Peck , John B. Sharp
CPC分类号： H04Q11/0428
摘要： Protocol support and message buffering circuitry is used to transmit call status, control and terminal management information bidirectionally over associated conductor pairs as signalling messages between a system processor and a phone and/or terminal served by the system and connected to each conductor pair. This information is transmitted serially in a modified HDLC format as a one bit signalling field of a multiplexed data frame. At each transmitting end, the message information is converted from a parallel to a serial format, transmitted serially as the signalling bit of successive frames, and reconverted to parallel at the receiving end.Ports terminate the system end of the conductor pairs and are mounted four to the board. Each board contains circuitry, such as registers and the like, common to the signalling message protocol support and message buffering circuitry of all four ports. The processor scans, reads and writes these common registers via the I/O bus to determine the status of each port and to exchange messages with the remote phones and terminals served by the ports. Multiplexing is used on the signalling message so that the system processor can direct a message individually to each of the plurality of station devices connected to the station end of each line. Protocol support is carried through to the processor to support the error detecting capabilities of the protocol.
摘要翻译： 协议支持和消息缓冲电路用于通过相关联的导体对双向地传送呼叫状态，控制和终端管理信息，作为系统处理器与由系统服务并连接到每个导体对的电话和/或终端之间的信令消息。 该信息以修改的HDLC格式被串行发送，作为多路复用数据帧的一位信令字段。 在每个发送端，消息信息从并行转换为串行格式，连续发送为连续帧的信令位，并在接收端重新转换为并行。 端口终止导体对的系统端，并且四个安装在电路板上。 每个板包含所有四个端口的信令消息协议支持和消息缓冲电路共用的诸如寄存器等的电路。 处理器通过I / O总线扫描，读取和写入这些公用寄存器，以确定每个端口的状态，并与端口提供的远程电话和终端交换消息。 在信令消息上使用多路复用，使得系统处理器可以将消息分别引导到连接到每一行的站端的多个站设备中的每一个。 支持协议支持到处理器以支持协议的错误检测能力。
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