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1. 发明授权

US4679244A Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same 失效
公开(公告)号：US4679244A
公开(公告)日：1987-07-07
申请号：US705944
申请日：1985-02-26
申请人： Ryoji Kawasaki , Kazuhiro Yoshizawa , Akio Yotsutani , Noboru Saegusa , Koichi Ito , Syozi Huse
发明人： Ryoji Kawasaki , Kazuhiro Yoshizawa , Akio Yotsutani , Noboru Saegusa , Koichi Ito , Syozi Huse
IPC分类号： H04B1/40 , H04B1/16 , H04B7/26 , H04M1/73 , H04B7/00
CPC分类号： H04W52/0235 , H04M1/73
摘要： A portable unit that may be called from a base station through a radio control channel by a succession of terminating call signals that is sent through the control channel from the base station to the portable unit for a first or restricted time duration (T.sub.1), selected in consideration of a battery saving period of a battery saving operation carried out in the portable unit. Within the battery saving period, the portable unit is put into transient active and inactive states during a first time interval and a second time interval, respectively. Selection is made so that the first time duration is longer than the second time interval to receive at least one of the terminating call signals within the first time duration in the portable unit. The base station monitors an acknowledgement signal for a second time duration (T.sub.2) after the lapse of the first time duration and interrupts the control channel when the acknowledgement signal is not received within the first and the second time durations. In the portable unit, the battery saving operation is released when the presence of the terminating call signals is detected by a squelch circuit.

2. 发明授权

US4736461A Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same 失效
标题翻译：在受限制的持续时间内发送终止呼叫信号的方法以及用于其中的基站和便携式单元
公开(公告)号：US4736461A
公开(公告)日：1988-04-05
申请号：US13823
申请日：1987-02-12
申请人： Ryoji Kawasaki , Kazuhiro Yoshizawa , Akio Yotsutani , Noboru Saegusa , Koichi Ito , Syozi Huse
发明人： Ryoji Kawasaki , Kazuhiro Yoshizawa , Akio Yotsutani , Noboru Saegusa , Koichi Ito , Syozi Huse
IPC分类号： H04B1/40 , H04B1/16 , H04B7/26 , H04M1/73 , H04B7/00
CPC分类号： H04W52/0235 , H04M1/73
摘要： A portable unit that may be called from a base station through a radio control channel by a succession of terminating call signals that is sent through the control channel from the base station to the portable unit for a first or restricted time duration (T.sub.1), selected in consideration of a battery saving period of a battery saving operation carried out in the portable unit. Within the battery saving period, the portable unit is put into transient active and inactive states during a first time interval and a second time interval, respectively. Selection is made so that the first time duration is longer than the second time interval to receive at least one of the terminating call signals within the first time duration in the portable unit. The base station monitors an acknowledgement signal for a second time duration (T.sub.2) after the lapse of the first time duration and interrupts the control channel when the acknowledgement signal is not received within the first and the second time durations. In the portable unit, the battery saving operation is released when the presence of the terminating call signals is detected by a squelch circuit.
摘要翻译：可以通过无线电控制信道从基站通过一系列终止呼叫信号来呼叫的便携式单元，其通过控制信道从基站向便携式单元发送第一或受限的持续时间（T1），所选择的时间段（T1）被选择考虑到在便携式单元中执行的电池节省操作的电池节省时间。在电池节省期间，便携式单元分别在第一时间间隔和第二时间间隔期间被置于瞬时的主动和不活动状态。进行选择使得第一持续时间长于第二时间间隔以在便携式单元中的第一持续时间内接收至少一个终止呼叫信号。基站在经过第一持续时间之后监视第二持续时间（T2）的确认信号，并且在第一和第二持续时间内未接收到确认信号时中断控制信道。在便携式单元中，当静音电路检测到终止呼叫信号的存在时，电池省电操作被释放。

3. 发明授权

US4875231A Radio telephone system 失效
标题翻译：无线电话系统
公开(公告)号：US4875231A
公开(公告)日：1989-10-17
申请号：US112928
申请日：1987-10-27
申请人： Toshihiro Hara , Akio Yotsutani , Ryoji Kawasaki , Kazuyuki Tate , Syoji Huse , Koji Ono
发明人： Toshihiro Hara , Akio Yotsutani , Ryoji Kawasaki , Kazuyuki Tate , Syoji Huse , Koji Ono
IPC分类号： H04Q7/28 , H04B7/26 , H04M1/725 , H04Q7/20 , H04Q7/38
CPC分类号： H04M1/72508
摘要： A radio telephone system includes a base station connected to a telephone exchanger and a plurality of mobile stations connected to the base station through a radio channel including a control channel and communication channels. The base station includes a transmitter/receiver, a receiver, and a controller. In a stand-by mode, the controller sets a channel of the transmitter/receiver to the control channel to receive a calling signal from each mobile station and sets a channel of the receiver to a given communication channel to monitor vacancy of the communication channels.
摘要翻译：无线电话系统包括连接到电话交换机的基站和通过包括控制信道和通信信道的无线电信道连接到基站的多个移动台。基站包括发射机/接收机，接收机和控制器。在待机模式中，控制器将发射机/接收机的信道设置到控制信道，以从每个移动台接收呼叫信号，并将接收机的信道设置为给定的通信信道，以监测通信信道的空位。

4. 发明授权

US4991198A Interconnection control method in cordless telephone system 失效
标题翻译：无绳电话系统中的互连控制方法
公开(公告)号：US4991198A
公开(公告)日：1991-02-05
申请号：US272839
申请日：1988-10-18
申请人： Kazuyuki Tate , Ryoji Kawasaki , Noboru Saegusa , Yukihiro Shimura , Syoji Huse , Koji Ono
发明人： Kazuyuki Tate , Ryoji Kawasaki , Noboru Saegusa , Yukihiro Shimura , Syoji Huse , Koji Ono
IPC分类号： H04Q7/38 , H04B7/26 , H04M1/00 , H04M1/727 , H04Q7/20
CPC分类号： H04M1/727
摘要： An interconnection control method in a cordless telephone system having a connection unit connected to a subscriber line and a plurality of radio telephone sets connected through a radio communication circuit to the connection unit. Each of the radio telephone sets in a signal transmits, in a signal transmission mode, a calling signal containing group identification information and individual identification information. The connection unit, only when the received group identification information coincides with a predetermined content, returns a calling answer signal containing group identification information and individual identification information of the transmitting radio telephone sets and then establishes a speech channel between the connection unit and the other party telephone set.

5. 发明授权

US4876708A Cordless telephone system 失效
标题翻译：无绳电话系统
公开(公告)号：US4876708A
公开(公告)日：1989-10-24
申请号：US112927
申请日：1987-10-27
申请人： Noboru Saegusa , Toshihiro Hara , Ryoji Kawasaki , Kazuyuki Tate , Syoji Huse , Koji Ono
发明人： Noboru Saegusa , Toshihiro Hara , Ryoji Kawasaki , Kazuyuki Tate , Syoji Huse , Koji Ono
IPC分类号： H04Q7/38 , H04B7/26 , H04M1/00 , H04M1/725 , H04M3/42 , H04Q7/20
CPC分类号： H04M1/72513
摘要： A cordless telephone system includes a connector connected to a subscriber telephone line and at least one radio telephone set through a radio channel to establish or hold a communication channel between the ratio telephone set and a subscriber. The connector includes a control unit incorporating a timer. The control unit sets the system in a self hold state in which the radio channel is kept connected or a complete hold state in which the radio channel is disconnected on the basis of a hold signal from the radio telephone set, the presence/absence of a radio reception signal within a predetermined period of time preset in the timer, and the type of reception signal.
摘要翻译：无线电话系统包括连接到用户电话线的连接器和通过无线电信道的至少一个无线电话机，以建立或保持比率电话机和用户之间的通信信道。该连接器包括一个包含定时器的控制单元。控制单元基于来自无线电话机的保持信号将系统设置为保持无线电信道的自保持状态或无线电信道被断开的完整保持状态，存在/不存在在定时器预设的预定时间段内的无线电接收信号以及接收信号的类型。

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