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    • 65. 发明授权
    • Modem pooling system for communicating between a telephone and a
plurality of data terminals
    • 用于在电话和多个数据终端之间通信的调制解调器汇集系统
    • US5337348A
    • 1994-08-09
    • US716802
    • 1991-06-19
    • Yuichi YamazakiHideyasu MoriHiroshi ManoNorimitsu IkehataTakashi AokiYoshikazu Sano
    • Yuichi YamazakiHideyasu MoriHiroshi ManoNorimitsu IkehataTakashi AokiYoshikazu Sano
    • H04Q3/58H04M3/00H04M11/00H04M11/06H04Q11/04
    • H04M11/06H04Q11/0428
    • In a key telephone system in which a plurality of data terminals 37l . . . 37n such as personal computers are connected to a key service unit 1 connected to a plurality of telephone lines 25l . . . 25m, a modem 43 is pooled so as to be usable in common for the plural data terminals 37l . . . 37n. In response to a called party number signal from the telephone lines (e.g. 25l) in dial-in service, the key service unit 1 selects a single data terminal designated by an extension telephone designation signal in dial-in service from among the data terminals 37l . . . 37n, and closes a communication channel between the selected data terminal (e.g. 37l) and the modem 43, so that a status equivalent to that where the selected data terminal 37l and the modem 43 are directly connected to each other can be established. Thereafter, the key service unit 1 indicates a called party number signal reception to the modem 43, and the modem 43 transmits a call to the selected data terminal 37l. When the selected data terminal 37l responds to the call from this modem 43, the key service unit 1 closes a communication channel between the modem 43 and the telephone line 25l, so that a communication link between the selected data terminal 37l and the telephone line 25l can be established via the modem 43. During the process until this communication link can be established, since the selected data terminal 37l and the modem 43 are in the status equivalent to direct coupling, the key service unit 1 is not concerned in the communications between the selected data terminal 37l and thus modem 43, thus reducing the operational load applied to the key service unit 1.
    • 在多个数据终端371的密钥电话系统中, 。 。 37n例如个人计算机连接到连接到多个电话线路251的密钥服务单元1。 。 。 如图25m所示,调制解调器43被合并为可以共同用于多个数据终端37l。 。 。 37n。 密钥服务单元1响应来自拨号服务中的电话线路(例如25l)的被叫方号码信号,从数据终端371中选择由拨入服务中的分机电话指定信号指定的单个数据终端 。 。 。 37n,并且关闭所选择的数据终端(例如371)和调制解调器43之间的通信信道,使得可以建立与所选择的数据终端37l和调制解调器43彼此直接相连的状态相当的状态。 此后,密钥服务单元1向调制解调器43指示被叫方号码信号接收,并且调制解调器43向所选择的数据终端371发送呼叫。 当所选择的数据终端371响应来自该调制解调器43的呼叫时,密钥服务单元1关闭调制解调器43和电话线路251之间的通信信道,使得所选择的数据终端371和电话线路251之间的通信链路 可以通过调制解调器43建立。在该过程中,直到该通信链路可以被建立为止,由于所选择的数据终端37 1和调制解调器43处于等同于直接耦合的状态,因此密钥服务单元1不涉及 选择的数据终端37l和调制解调器43,从而降低施加到密钥服务单元1的操作负载。
    • 66. 发明授权
    • Terminal adapter pooling system for ISDN
    • ISDN终端适配器池系统
    • US5319700A
    • 1994-06-07
    • US716803
    • 1991-06-19
    • Hiroshi ManoHideyasu MoriYuichi YamazakiNorimitsu IkehataTakashi AokiYoshikazu Sano
    • Hiroshi ManoHideyasu MoriYuichi YamazakiNorimitsu IkehataTakashi AokiYoshikazu Sano
    • H04L29/08H04L29/10H04M3/00H04M11/00H04Q3/58H04Q11/04
    • H04Q11/0471H04Q2213/09H04Q2213/19H04Q2213/194H04Q2213/199H04Q2213/22H04Q2213/334H04Q2213/385
    • In a key telephone system in which a plurality of data terminals 37l . . . 37n such as personal computers are connected to a key service unit 1 connected to a plurality of ISDNs 23l . . . 23m, a terminal adapter (TA) 41 is pooled so as to be usable in common for the plural data terminals 37l . . . 37n. In response to a setup signal from an ISDN (e.g. 23l), the key service unit 1 selects a single data terminal designated by a subaddress included in the setup signal from among the data terminals 37l . . . 37n, and closes a communication channel between the selected data terminal (e.g. 37l) and the TA 41, so that a status equivalent to that where the selected data terminal 37l and the TA 41 are directly connected to each other can be established. Thereafter, the key service unit 1 transmits a setup signal to the TA 41, and the TA 41 transmits a call to the selected data terminal 37l. When the selected data terminal 37l responds to the call from this TA 41, the key service unit 1 closes a communication channel between the TA 41 and the ISDN 25l, so that a communication link between the selected data terminal 37l and the ISDN 23l can be established via the TA 41. During the process until this communication link can be established, since the selected data terminal 37l and the TA 41 are in the status equivalent to direct coupling, the key service unit 1 is not concerned in the communications between the selected data terminal 37l and thus TA 41, thus reducing the operational load applied to the key service unit 1.
    • 在多个数据终端371的密钥电话系统中, 。 。 37n,例如个人计算机连接到连接到多个ISDN 231的密钥服务单元1。 。 。 如图23m所示,汇集了终端适配器(TA)41,以便对多个数据终端371可共同使用。 。 。 37n。 响应于来自ISDN(例如23l)的设置信号,密钥服务单元1从数据终端371中选择由包括在建立信号中的子地址指定的单个数据终端。 。 。 37n,并且关闭所选择的数据终端(例如371)和TA 41之间的通信信道,从而可以建立与所选数据终端37l和TA 41直接相连的状态相当的状态。 此后,密钥服务单元1向TA 41发送建立信号,并且TA 41向所选择的数据终端371发送呼叫。 当所选数据终端371响应来自该TA 41的呼叫时,密钥服务单元1关闭TA 41与ISDN 251之间的通信信道,使得所选择的数据终端371和ISDN 23l之间的通信链路可以是 通过TA41建立。在该过程中,直到可以建立该通信链路为止,由于所选择的数据终端371和TA 41处于与直接耦合相同的状态,所以密钥服务单元1不关心所选择的 数据终端37l,从而降低TA 41,从而降低施加到密钥服务单元1的操作负载。
    • 67. 发明授权
    • Digital key telephone system
    • 数字电话系统
    • US4887264A
    • 1989-12-12
    • US230799
    • 1988-08-10
    • Hiroshi ManoMasayuki TsurusakiYoshikazu SanoJunichi Shiomi
    • Hiroshi ManoMasayuki TsurusakiYoshikazu SanoJunichi Shiomi
    • H04Q11/04
    • H04Q11/0407
    • In a digital key telephone system through which extension-to-extension calls can be made and incoming calls can be transferred between a master main installation and plural slave main installations, the master and slave main installations are interconnected through digital interface units provided for each installation in order to transmit and receive speech data and control data in digital code between the installations. The digital interface unit of the master main installation first designates an address of the slave main installation to which data are to be transmitted before data transmission, while the digital interface unit of the slave main installation receives data transmitted from the master main installation after address designation. Further, the addresses of the slave main installations can be designated together or separately.
    • 在可以进行分机到分机呼叫的数字密钥电话系统中,可以在主主设备和多个从属主设备之间传送来话呼叫,主从设备通过为每个安装提供的数字接口单元互连 以便在安装之间发送和接收数字代码中的语音数据和控制数据。 主主设备的数字接口单元首先指定在数据传输之前要发送数据的从属主设备的地址,而从设备主设备的数字接口单元在地址指定之后接收从主主设备发送的数据 。 此外,从属主设备的地址可以一起指定或分开指定。