Cordless key telephone system with multiple tenant facility
    1.
    发明授权
    Cordless key telephone system with multiple tenant facility 失效
    无线钥匙电话系统,具有多个租户设施

    公开(公告)号:US5365572A

    公开(公告)日:1994-11-15

    申请号:US947852

    申请日:1992-09-21

    CPC分类号: H04W84/16 H04M9/005

    摘要: In a cordless key telephone system in which radio-frequency connections are established between exchange lines and cordless stations in response to a call request, a ringing signal is transmitted in response to an incoming call by containing in it the identification of the line at which the call is terminated. Each cordless station has an array of line keys associated respectively with the exchange lines and an array of line indicators associated respectively with the line keys, and a memory for storing tenant data indicating the lines to which the cordless station is authorized to access. The cordless station examines the tenant data in response to receipt of the ringing signal, and activates one of the line indicators if the indicated line is found in the tenant data, or examines the tenant data in response to an outgoing call originated from the cordless station operating a line key, and allows a connection to be established from that station to an exchange line when the line associated with the operated line key is found in the tenant data.

    摘要翻译: 在其中响应于呼叫请求在交换线路和无绳电台之间建立射频连接的无绳电话系统中,响应于来话呼叫而发送振铃信号,其中包含线路的标识, 通话已终止。 每个无绳站具有分别与交换线相关联的线路键阵列和分别与线路键相关联的线路指示器阵列,以及用于存储指示无绳电台被授权接入的线路的租户数据的存储器。 无线站根据接收到的振铃信号检查租户数据,并且如果在租户数据中找到指示的行,则激活线路指示器中的一个,或者响应于从无绳站发出的呼出来检查租户数据 操作线路钥匙,并且当在租户数据中找到与所操作的线路钥匙相关联的线路时,允许从该车站建立到交换线路的连接。

    Cordless key telephone system capable of quickly answering incoming calls
    2.
    发明授权
    Cordless key telephone system capable of quickly answering incoming calls 失效
    无钥匙电话系统,可以快速地回答收信呼叫

    公开(公告)号:US5239572A

    公开(公告)日:1993-08-24

    申请号:US686468

    申请日:1991-04-17

    IPC分类号: H04W84/16

    CPC分类号: H04W84/16

    摘要: In a cordless key telephone system, access units are located in groups corresponding to service areas for broadcasting radio signals on a control channel or on an assigned speech channel to cordless stations. A main controller selects one of the access units for each service area in response to an incoming call from the switched telephone network and sends a first alert signal to the selected access units to cause them to broadcast a recurrent sequence of second alert signals containing the identifiers of standby cordless stations. The second alert signal is received by each standby cordless station and an ACK signal is transmitted if the received signal contains its identifier. The ACK signal is copied by each access unit for transmission to the main controller, whereupon it returns a proceed-to-assign signal if the number of the received copies of the ACK signals is equal to the number of all standby stations. The proceed-to-assign signal is received by the selected access units and a channel assignment signal is broadcast indicating the assigned channel. On receiving it, each station is switched to the assigned channel and one of the stations in each area transmits an end-of-switching signal to cause the access units to broadcast ringing signals containing the identifiers of the alerted stations. In response to a given cordless station going off hook, an off-hook signal is sent from it and copied by the associated access unit for transmission to the main controller, which returns a turn-on signal to allow the given station to activate its speech circuit.

    Registration of a new cordless telephone to an existing system
    3.
    发明授权
    Registration of a new cordless telephone to an existing system 失效
    将新的无绳电话注册到现有系统

    公开(公告)号:US4864599A

    公开(公告)日:1989-09-05

    申请号:US227024

    申请日:1988-07-29

    IPC分类号: H04B7/26 H04M1/727 H04Q7/32

    CPC分类号: H04M1/727

    摘要: A new cordless telephone is registered to an existing cordless telephone system by transmitting the product identification number of the new cordless telephone from the access unit of the system to the new cordless telephone, receiving the transmitted product identification number at the new cordless telephone and verifying that the transmitted product identification number is correctly received. In response to the verification, the system and telephone identification numbers of the new cordless telephone are transmitted from the access unit to the new cordless telephone and stored into an electrically erasable programmable read-only memory of this telephone to be used for establishing calls.

    摘要翻译: 通过将新的无绳电话的产品标识号从系统的接入单元(1)发送到新的无绳电话(101),将新的无绳电话(101)登记到现有的无绳电话系统,接收所发送的产品标识 在新的无绳电话(101)处的号码,并验证所发送的商品标识号是否被正确接收。 响应于验证,新的无绳电话(101)的系统和电话标识号从接入单元(1)发送到新的无绳电话(101),并存储到该可擦除可编程只读存储器 电话用于建立电话。

    Radio communication system having control method for shortening call
response time
    5.
    发明授权
    Radio communication system having control method for shortening call response time 失效
    具有电话响应时间控制方法的无线电通信系统

    公开(公告)号:US5136629A

    公开(公告)日:1992-08-04

    申请号:US442364

    申请日:1989-12-12

    CPC分类号: H04B7/2621 H04M1/72508

    摘要: A radio communication system of a multi-channel access type in which an idle one of a plurality of radio channels is detected to perform transmission and reception of voice signals, data signals or the like. In the present system, in the case where a base unit receives an incoming call from a wired line, the base unit transmits to a plurality of radio terminal units a speech channel designation signal as well as a representative radio terminal designation signal specifying a representative radio terminal unit from the plurality of radio terminal units, and when receiving a channel switching completion signal from the representative radio terminal unit, the base unit transmits a signal for generation of ringing tones to the plurality of radio terminal units at the same time to cause the plurality of radio terminal units to generate the ringing tones at the same time.

    摘要翻译: PCT No.PCT / JP89 / 00153 Sec。 371日期1989年12月12日 102(e)日期1989年12月12日PCT提交1989年2月15日PCT公布。 出版物WO89 / 07867 日期:1989年8月24日。一种多通道接入类型的无线电通信系统,其中检测到多个无线电信道中的空闲的一个以执行语音信号,数据信号等的发送和接收。 在本系统中,在基本单元从有线线路接收到来电的情况下,基站单元向多个无线终端单元发送语音信道指定信号以及指定代表性无线电的代表性无线终端指定信号 终端单元,并且当从代表性无线终端单元接收到信道切换完成信号时,基站单元同时向多个无线电终端单元发送用于产生振铃音的信号,以使得 多个无线电终端单元同时产生振铃音。

    Method for controlling a plurality of stationary apparatuses in a
cordless telephone system
    6.
    发明授权
    Method for controlling a plurality of stationary apparatuses in a cordless telephone system 失效
    控制无绳电话系统中多种静态设备的方法

    公开(公告)号:US5086451A

    公开(公告)日:1992-02-04

    申请号:US380359

    申请日:1989-07-17

    IPC分类号: H04Q7/38 H04M1/733

    CPC分类号: H04M1/733

    摘要: Disclosed is a radio channel control method for a system including a main apparatus connected to a telephone line and having a channel control function, a plurality of stationary apparatuses connected to the main apparatus and each having a radio transmitter/receiver, and a portable telephone capable of communicating with the stationary apparatuses through a radio channel. In this method, the main apparatus designates each stationary apparatus in a main or sub state to control communication with the portable telephone and monitors a state signal including information of the main or sub state transmitted from each stationary apparatus. When the state signal from a given stationary apparatus does not coincide with a state of the given stationary apparatus designated by the main apparatus, the main apparatus transmits a state designation signal to the given stationary apparatus to coincide with the state designated by the main apparatus.

    Cordless key telephone system for repeating attempts to alert stations
located in interference-affected zones
    8.
    发明授权
    Cordless key telephone system for repeating attempts to alert stations located in interference-affected zones 失效
    无线钥匙电话系统用于重复尝试提醒位于受干扰地区的电台

    公开(公告)号:US5305371A

    公开(公告)日:1994-04-19

    申请号:US947853

    申请日:1992-09-21

    CPC分类号: H04W84/16 H04W68/06

    摘要: In a cordless key telephone system where adjacent service zones having the same control channel are overlapped, forming an unavoidable interference-affected overlapping zone, a main unit initially selects an access unit from each service zone in response to an incoming call from a network and transmits a first alert signal to that unit where it is broadcast to elicit an acknowledgement (ACK) signal from cordless stations. On receiving it, the access unit selects a speech channel, broadcasts a first channel assignment signal on the control channel, and then a first ringing signal on the selected speech channel. The main unit determines whether there is a cordless station falling to respond to the first alert signal. If such a station exists, the main unit selects a first, idle access unit which is located in one of the adjacent service zones. A second alert signal is then broadcast on a control channel from the first access unit. Following receipt of an ACK signal from a cordless station, a second channel assignment signal is broadcast from the first access unit, signalling the identification of a speech channel previously selected by a second, initially selected access unit located in the adjacent service zones. A second ringing signal is broadcast from the second access unit on the previously selected speech channel.

    摘要翻译: 在具有相同控制信道的相邻服务区域重叠的无绳电话系统中,形成不可避免的受干扰影响的重叠区域,主单元响应于来自网络的呼入,首先从每个服务区域选择接入单元,并发送 向广播单元发送第一个警报信号,以从无绳电台获取确认(ACK)信号。 在接收时,接入单元选择语音信道,在控制信道上广播第一信道分配信号,然后在所选语音信道上发送第一振铃信号。 主单元确定是否存在无绳站落下以响应第一报警信号。 如果存在这样的站,则主单元选择位于相邻服务区之一中的第一空闲接入单元。 然后在控制信道上从第一接入单元广播第二报警信号。 在从无绳站接收到ACK信号之后,从第一接入单元广播第二信道分配信号,发信号通过位于相邻业务区域中的第二初始选择的接入单元先前选择的话音信道的识别。 在先前选择的语音信道上从第二接入单元广播第二振铃信号。

    Clock recovering device
    9.
    发明授权
    Clock recovering device 失效
    时钟恢复装置

    公开(公告)号:US4841167A

    公开(公告)日:1989-06-20

    申请号:US89794

    申请日:1987-08-27

    申请人: Noboru Saegusa

    发明人: Noboru Saegusa

    CPC分类号: H04L7/0331

    摘要: A device for recovering a clock from received data which has a different duty ratio is disclosed. The optimum timing of a recovered clock is determined based on the pulse width of received data. A clock is accurately recovered so long as the duty ratio of received data is not greater than .+-.50%.

    摘要翻译: 公开了一种用于从具有不同占空比的接收数据中恢复时钟的装置。 恢复时钟的最佳定时是基于接收数据的脉冲宽度确定的。 只要接收到的数据的占空比不大于+/- 50%,就准确地恢复时钟。