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    Passive bus communication for ISDN
    2.
    发明授权
    Passive bus communication for ISDN 失效
    ISDN的被动总线通信

    公开(公告)号：US4835769A

    公开(公告)日：1989-05-30

    申请号：US150130

    申请日：1988-01-29

    申请人： Norman J. Donaghue, Jr. ,  Jay P. Jayapalan ,  Rafael E. Salcedo

    发明人： Norman J. Donaghue, Jr. ,  Jay P. Jayapalan ,  Rafael E. Salcedo

    IPC分类号： H04Q11/04

    CPC分类号： H04Q11/0471 ,  H04Q2213/13034 ,  H04Q2213/13174 ,  H04Q2213/13176 ,  H04Q2213/1319 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1322 ,  H04Q2213/13299 ,  H04Q2213/204 ,  H04Q2213/216 ,  H04Q2213/22 ,  H04Q2213/299

    摘要： An apparatus for providing passive bus communication in an ISDN without use of services of a central office includes a passive bus suitable for ISDN D-channel frame communication, the passive bus having an echo channel and having a plurality of terminal devices coupled to the passive bus. A receiving circuit is coupled to the passive bus for receiving D-channel frames containing a SAPI address transmitted from the terminal devices over the passive bus. A decoding circuit is coupled to the receiving circuit for decoding D-channel addresses transmitted from the terminal devices over the passive bus. The decoding circuit includes a circuit for determining if one of the D-channel frames from the terminal devices include a predetermined SAPI address. A switching circuit is coupled to and responsive to the decoding circuit, and implements a logical communication channel between two or more of the plurality of terminal devices when the D-channel frame includes the predetermined SAPI address. The switching circuit echoes D-channel frames over the echo channel of the passive bus for receipt by the terminal devices (TE) coupled to the passive bus and inhibits transmission of the D-channel frames to the central office when the D-channel frames include the predetermined SAPI address. The TE monitors the D-echo channel to receive the local passive bus communication in addition to contention resolution.

    摘要翻译： 一种用于在不使用中心局的服务的情况下在ISDN中提供无源总线通信的装置包括适用于ISDN D信道帧通信的无源总线，所述无源总线具有回波信道，并且具有耦合到被动总线的多个终端设备 。 接收电路耦合到无源总线，用于接收包含通过无源总线从终端设备发送的SAPI地址的D信道帧。 解码电路耦合到接收电路，用于对通过无源总线从终端设备发送的D信道地址进行解码。 解码电路包括用于确定来自终端设备的D信道帧中的一个是否包括预定SAPI地址的电路。 切换电路耦合到解码电路并且响应于解码电路，并且当D信道帧包括预定的SAPI地址时，实现多个终端设备中的两个或更多个之间的逻辑通信信道。 切换电路通过被动总线的回波通道回送D信道帧，以便由耦合到无源总线的终端设备（TE）接收，并且当D信道帧包括D信道帧时，禁止将D信道帧传输到中心局 预定的SAPI地址。 除了争用解决之外，TE监视D-echo信道以接收局部无源总线通信。

    Communication system and a private branch exchange to be used in such a communication system
    3.
    发明授权
    Communication system and a private branch exchange to be used in such a communication system 失效
    通信系统和专用分支交换机用于这种通信系统

    公开(公告)号：US5450396A

    公开(公告)日：1995-09-12

    申请号：US138945

    申请日：1993-10-18

    申请人： Gerardus M. J. Havermans

    发明人： Gerardus M. J. Havermans

    IPC分类号： H04Q3/545 ,  H04M3/00 ,  H04Q3/58 ,  H04Q11/04 ,  H04L12/00

    CPC分类号： H04Q11/0457 ,  H04Q2213/09 ,  H04Q2213/22 ,  H04Q2213/33 ,  H04Q2213/392

    摘要： An integrated services communication system ISDN in which a plurality of ISDN supported terminal stations can be coupled to an S.sub.0 bus coupled to a private branch exchange, of which a maximum of 2 terminal stations can be active over B-channels. Them is proposed also to connect incompletely ISDN supported terminal stations to the S.sub.0 bus, which stations have many non-ISDN supported features, there being investigated on line cards which type of terminal station is connected. On the basis of a Terminal Endpoint Identifier (TEI) in a layer-2 message, either a standard ISDN protocol is handled from layer-2 onwards, or a firm-owned protocol.

    摘要翻译： 一种集成业务通信系统ISDN，其中多个ISDN支持的终端站可以耦合到耦合到专用分支交换机的S0总线，其中最多2个终端站可以在B信道上活动。 他们还建议将不完整的ISDN支持的终端站连接到S0总线，哪些站具有许多非ISDN支持的特征，在类型的终端站连接的线路卡上进行调查。 基于第二层消息中的终端端点标识符（TEI），标准ISDN协议从第二层起处理，也可以是公司所有协议。

    ISDN network termination unit enabling to establish data link between one terminal equipment and other terminal equipments connected to the unit without use of subscriber line
    5.
    发明授权
    ISDN network termination unit enabling to establish data link between one terminal equipment and other terminal equipments connected to the unit without use of subscriber line 失效
    ISDN网络终端单元能够在不使用用户线路的情况下建立一个终端设备与连接到该设备的其他终端设备之间的数据链路

    公开(公告)号：US4999836A

    公开(公告)日：1991-03-12

    申请号：US362778

    申请日：1989-06-07

    申请人： Ryuhei Fujiwara

    发明人： Ryuhei Fujiwara

    IPC分类号： H04Q5/00 ,  H04M11/00 ,  H04Q11/04

    CPC分类号： H04Q11/0471 ,  H04Q2213/097 ,  H04Q2213/13174 ,  H04Q2213/13176 ,  H04Q2213/13202 ,  H04Q2213/13209 ,  H04Q2213/174 ,  H04Q2213/176 ,  H04Q2213/216 ,  H04Q2213/22

    摘要： An ISDN network termination unit for connecting a user's bus line connected to a plurality of terminal equipments and a subscriber line extending from an exchanging office receives and transmits a D channel signal from one of the exchanging office and each terminal equipment to the other to thereby establish a data link between them on the D channel. The D channel signal is provided with an identifier code field. In order to establish a data link between the terminal equipments on the D channel without use of the subscriber line and the exchanging office, the ISDN network termination unit is provided with an identifier code holder for holding a predetermined identifier code and a deciding circuit for deciding whether or not the identifier code in the D channel signal from a specific one of the terminal equipment is equal to the predetermined identifier code. When both are equal to each other, the D channel signal is returned by a returning circuit to the terminal equipments through the user's line to thereby establish the data link between the specific terminal equipment and the other terminal equipments through the network termination unit. It may be made that a start flag and a stop flag are additionally detected so as to control the returning circuit.

    摘要翻译： 用于连接连接到多个终端设备的用户总线和从交换局延伸的用户线路的ISDN网络终端单元从交换局和每个终端设备之一接收并发送D信道信号，从而建立 在D通道之间的数据链接。 D信道信号具有标识符码字段。 为了在D信道上的终端设备之间建立数据链路而不使用用户线路和交换局，ISDN网络终端单元设置有用于保存预定标识符代码的标识符代码持有者和用于决定的决定电路 来自终端设备中的特定一个的D信道信号中的标识符码是否等于预定的标识符码。 当两者彼此相等时，D通道信号由返回电路通过用户线路返回到终端设备，从而通过网络终端单元建立特定终端设备与其他终端设备之间的数据链路。 可以进一步检测起始标记和停止标志，以便控制返回电路。

    Data terminal control unit including table for efficiently making connections between data terminal equipments and between data terminal equipment and outside lines
    6.
    发明授权
    Data terminal control unit including table for efficiently making connections between data terminal equipments and between data terminal equipment and outside lines 失效
    数据终端控制单元包括用于有效连接数据终端设备与数据终端设备与外线之间的连接表

    公开(公告)号：US5457693A

    公开(公告)日：1995-10-10

    申请号：US243008

    申请日：1994-05-16

    申请人： Satoyuki Sasaki

    发明人： Satoyuki Sasaki

    IPC分类号： H04Q3/62 ,  H04Q11/04 ,  H04J3/12 ,  H04J3/08

    CPC分类号： H04Q11/0457 ,  H04Q2213/097 ,  H04Q2213/102 ,  H04Q2213/22 ,  H04Q2213/286 ,  H04Q3/625

    摘要： A plurality of data terminals are connected to a plurality of ports in a data terminal control unit. A table representing correspondence in an extension number, a dial-in number and an ISDN subaddress of each data terminal equipment, the number of a port connected with each data terminal equipment, and so on is provided within the data terminal control unit. When one data terminal equipment calls another data terminal equipment, the extension number of the data terminal equipment to be called is set in a setup message. When one data terminal equipment is called from an outside line, an ISDN number thereof is set in a setup message. The setup message is then transmitted to the data terminal control unit. The data terminal control unit refers to the table, thereby to specify the data terminal equipment to be called and transmit the setup message to the corresponding data terminal equipment.

    摘要翻译： 多个数据终端连接到数据终端控制单元中的多个端口。 在数据终端控制单元内设置表示分机号码，每个数据终端设备的拨入号码和ISDN子地址，与每个数据终端设备连接的端口号码等的对应关系的表格。 当一个数据终端设备调用另一个数据终端设备时，将要设置的要呼叫的数据终端设备的分机号码设置在设置消息中。 当从外线呼叫一个数据终端设备时，其ISDN号码被设置在建立消息中。 然后将建立消息发送到数据终端控制单元。 数据终端控制单元参照该表，由此指定要被呼叫的数据终端设备，并将建立消息发送到对应的数据终端设备。

    Local communication system among ISDN terminal equipments
    7.
    发明授权
    Local communication system among ISDN terminal equipments 失效
    ISDN终端设备之间的本地通信系统

    公开(公告)号：US4792800A

    公开(公告)日：1988-12-20

    申请号：US883402

    申请日：1986-07-08

    申请人： Masanobu Fujioka ,  Yoshikazu Ikeda ,  Nobuo Furuya

    发明人： Masanobu Fujioka ,  Yoshikazu Ikeda ,  Nobuo Furuya

    IPC分类号： H04Q11/04

    CPC分类号： H04Q11/0471 ,  H04Q2213/216 ,  H04Q2213/22 ,  H04Q2213/299

    摘要： A local communication system among ISDN terminal equipment in a user's premises are connected to a local passive bus of the LSDN basic-access interface. The present system can establish the local communication through a network termination unit among ISDN termination equipment. In order to establish such a local communication, a multiframing scheme is taken on a passive bus forming multiframes by combining together the predetermined number of frames which are as defined in the I.400 series of CCITT recommendations. The network termination unit has a switching device for coupling two circuit-switched type communication channels (B1, B2) on the passive bus in one direction of transmission with the two other channels (B2, B1) in the other direction to establish local communication. Alternatively, the switching device couples the two channels on the passive bus with those on the subscribed line to establish external communication. Each of the terminal equipments has a device for requesting the local communication when required.

    摘要翻译： 用户场所的ISDN终端设备之间的本地通信系统连接到LSDN基本接入接口的本地无源总线。 本系统可以通过ISDN终端设备之间的网络终端单元建立本地通信。 为了建立这样的本地通信，通过将在I.400系列CCITT建议中定义的预定数量的帧组合在一起，在形成多帧的无源总线上采取多层次方案。 网络终端单元具有切换装置，用于在另一方向上与一个方向的两个通道（B2，B1）在一个无源总线上耦合两个电路交换型通信信道（B1，B2），以建立本地通信。 或者，开关装置将被动总线上的两个通道与订阅的线路上的两个通道耦合，以建立外部通信。 每个终端设备具有当需要时请求本地通信的设备。

    ISDN subscriber terminal control system
    8.
    发明授权
    ISDN subscriber terminal control system 失效
    ISDN用户终端控制系统

    公开(公告)号：US4722082A

    公开(公告)日：1988-01-26

    申请号：US835716

    申请日：1986-03-03

    申请人： Nobuo Furuya ,  Yoshikazu Ikeda ,  Masanobu Fujioka

    发明人： Nobuo Furuya ,  Yoshikazu Ikeda ,  Masanobu Fujioka

    IPC分类号： H04Q5/20 ,  H04M9/00 ,  H04Q11/04

    CPC分类号： H04Q11/0471 ,  H04Q2213/179 ,  H04Q2213/204 ,  H04Q2213/216 ,  H04Q2213/22 ,  H04Q2213/299

    摘要： The ISDN user-network interface is defined in the CCITT D-channel protocol recommendation (I-400 series recommendations), in which many kinds of communication terminals (e.g. faximile, telephone, teletex, etc.) can communicate through a subscriber line. The user-network interface is improved from the view point of effectiveness of terminal usage, provision of communication service, and, flexibility of system configuration, by providing a control terminal in the subscriber. The control terminal doubles as ordinary terminal equipment, and has a global control function for controlling other subscriber terminal equipment. The control terminal establishes and/or releases a local control phase in which a control terminal controls ordinary terminal equipment in the same subscriber to have them correspond to the communication with another subscriber using the means which belong to the ordinary terminal equipment inherently. The control terminal operates as an ordinary terminal apparatus when it is not in local control phase.

    摘要翻译： ISDN用户网络接口在CCITT D信道协议推荐（I-400系列建议）中定义，其中许多种类的通信终端（例如传真，电话，电信等）可以通过用户线进行通信。 通过在用户中提供控制终端，从终端使用的有效性，提供通信服务以及系统配置的灵活性的角度改进了用户网络接口。 控制终端兼作普通终端设备，具有控制其他用户终端设备的全局控制功能。 控制终端建立和/或释放本地控制阶段，其中控制终端控制同一用户中的普通终端设备使其与其他用户的通信对应，使用属于普通终端设备的装置。 当不在本地控制阶段时，控制终端作为普通终端设备工作。

    Telephone exchange system, dial-in incoming call method thereof, and dial-in incoming call program thereof
    9.
    发明授权
    Telephone exchange system, dial-in incoming call method thereof, and dial-in incoming call program thereof 有权
    电话交换系统，拨入呼入方式和拨入呼入程序

    公开(公告)号：US08731173B2

    公开(公告)日：2014-05-20

    申请号：US13574394

    申请日：2011-01-19

    申请人： Makoto Mizutani

    发明人： Makoto Mizutani

    IPC分类号： H04M3/02

    CPC分类号： H04Q3/58 ,  H04M3/06 ,  H04M3/42314 ,  H04M3/42331 ,  H04M2203/558 ,  H04Q3/625 ,  H04Q2213/13097 ,  H04Q2213/13103 ,  H04Q2213/13286 ,  H04Q2213/18 ,  H04Q2213/22

    摘要： A telephone exchange system includes a connection interface connecting a communication line and a plurality of extension telephones, a database having a dial-in conversion table registering a received number in association with a number after conversion for a dial-in incoming call, and an extension number table registering an extension telephone in association with an extension number of the extension telephone, and a main controller connected to the connection interface and the database. When the dial-in incoming call comes from the communication line, the main controller retrieves an extension number which coincides with the received number from the extension number table. When there is an extension number which coincides with the received number, the main controller causes an extension telephone corresponding to the extension number to ring.

    摘要翻译： 一种电话交换系统包括连接通信线路和多个分机电话的连接接口，具有拨号转换表的数据库，该接入转换表将接收的号码与用于拨入电话的转换后的号码相关联，以及扩展 号码表与扩展电话的分机号码相关联地登记分机电话，以及连接到连接接口和数据库的主控制器。 当拨入来电来自通信线路时，主控制器从分机号码表中检索与接收号码一致的分机号码。 当存在与接收号码一致的分机号码时，主控制器使与分机号码相对应的分机电话振铃。