公开(公告)号：US5544227A

公开(公告)日：1996-08-06

申请号：US474522

申请日：1995-06-07

申请人： Stephen M. Blust ,  Edward I. Comer ,  Jere T. Sandidge

发明人： Stephen M. Blust ,  Edward I. Comer ,  Jere T. Sandidge

IPC分类号： H04W84/14 ,  H04W84/16 ,  H04Q7/26

CPC分类号： H04W84/16 ,  H04W84/14

摘要： An interface circuit for use with a radiotelephone communications system in which the interface circuit is adapted to interface a trunk circuit serving a telephone switching system with a radiotelephone of the system using the trunk circuit supervision and signaling so that the switching system and trunk circuit have direct access to the radiotelephone system.

摘要翻译： 一种与无线电话通信系统一起使用的接口电路，其中所述接口电路适于使用所述中继电路监视和信令将服务于电话交换系统的中继电路与所述系统的无线电话机接口，使得所述交换系统和中继线路电路具有直接 访问无线电话系统。

公开(公告)号：US5513248A

公开(公告)日：1996-04-30

申请号：US258353

申请日：1994-06-10

申请人： James G. Evans ,  Diane Z. Lehder ,  Gregory Panagopoulos

发明人： James G. Evans ,  Diane Z. Lehder ,  Gregory Panagopoulos

IPC分类号： H04M1/733 ,  H04W36/08 ,  H04W84/16 ,  H04Q7/20

CPC分类号： H04M1/733 ,  H04W84/16

摘要： A cordless telephone system is arranged for extending the operating range of a cordless telephone portable unit within such system. The cordless telephone system comprises a plurality of cordless telephone stations that plug into any available wall telephone jack and may share the intrapremises telephone wire-pair with one or more existing corded telephone stations without interference. Each cordless telephone station consists of a cordless telephone base unit and its associated cordless telephone portable unit. Although each of the portable units is associated with a particular base unit, all of the portable units are able to operate with any of the base units in the system. As a user of a portable unit with a call in progress roams about a premises, all base units monitor the quality of the radio frequency signal received from the portable unit. If the signal quality of a base unit actively communicating with the portable unit deteriorates to below an acceptable level, control apparatus in the system identifies another base unit and executes a hand-off of the communication link with the portable unit to this base unit that is then receiving the signal from the handset unit with an acceptable signal quality. Operational control for the base units is provided through a time division multiple access arrangement wherein a communications channel is imposed on the existing premises telephone wire-pair above the audio frequency band used for standard telephone service.

摘要翻译： 无线电话系统被布置成用于在这种系统内扩展无绳电话便携式单元的操作范围。 无绳电话系统包括多个无绳电话站，其插入任何可用的墙壁电话插孔，并且可以与一个或多个现有的有线电话台共享不间断的电话线对而不受干扰。 每个无绳电话站由无绳电话基座单元及其相关的无绳电话便携式单元组成。 虽然每个便携式单元与特定的基本单元相关联，但是所有便携式单元都能够与系统中的任何基本单元一起操作。 作为正在进行呼叫的便携式单元的用户漫游有关场所，所有基地单元监视从便携式单元接收的射频信号的质量。 如果与便携式装置主动通信的基本单元的信号质量恶化到可接受的水平以下，则系统中的控制装置识别另一个基本单元，并且执行与便携式单元的通信链路的切换到该基本单元 然后以可接受的信号质量从手机单元接收信号。 通过时分多址方式提供基站的操作控制，其中通信信道被施加在用于标准电话业务的音频频带之上的现有住宅电话线对上。

公开(公告)号：US5454028A

公开(公告)日：1995-09-26

申请号：US187315

申请日：1994-01-27

申请人： Toshihiro Hara ,  Shinji Kumataka ,  Kosuke Hashimoto ,  Ichiro Tamura

发明人： Toshihiro Hara ,  Shinji Kumataka ,  Kosuke Hashimoto ,  Ichiro Tamura

IPC分类号： H04W36/08 ,  H04W36/30 ,  H04W84/16 ,  H04M11/00

CPC分类号： H04W36/30 ,  H04W36/0055 ,  H04W84/16

摘要： In a cordless key telephone system for servicing separate service zones (3.sub.1, 3.sub.2), a cordless station (5) establishes a two-way radio channel with an access unit (4) of the service zone in which it is located, and constantly monitors the field intensity of the established channel and transmits a zone switching signal when the field intensity is below a specified level as an indication that the cordless station is leaving a first zone (3.sub.1) and entering a second zone (3.sub.2). A main controller (2) establishes a switched connection between exchange lines (6) and the access units (4). In response to the zone switching signal from a given cordless station via the access unit of the first zone, the main controller holds an exchange line (6.sub.i) that is connected to the access unit (4.sub.j) of the first zone through a first switched connection, and establishes a second switched connection between the exchange line (6.sub.i) and the access unit (4.sub.j) of the second zone, instead of the first switched connection. A vocal announcement is applied to the exchange line indicating to a communicating party that the cordless station is switching zones.

摘要翻译： 在用于对单独服务区域（31,32）进行服务的无绳密钥电话系统中，无绳站（5）与其所在的服务区域的接入单元（4）建立双向无线电信道，并且不断地监视 所建立的信道的场强度，并且当场强度低于指定电平时发送区切换信号，作为无绳站离开第一区（31）并进入第二区（32）的指示。 主控制器（2）在交换线路（6）和接入单元（4）之间建立切换连接。 响应于来自给定无绳站的区段切换信号经由第一区域的访问单元，主控制器保持通过第一交换连接连接到第一区域的访问单元（4j）的交换线（6i） 并且在第二区域的交换线路（6i）和接入单元（4j）之间建立第二交换连接，而不是第一交换连接。 声音通知被应用于向通信方指示无绳站正在切换区域的交换线路。

公开(公告)号：US5442684A

公开(公告)日：1995-08-15

申请号：US181878

申请日：1994-01-13

申请人： Tadao Hashimoto ,  Ryoji Hara ,  Yasuhiro Fujimura

发明人： Tadao Hashimoto ,  Ryoji Hara ,  Yasuhiro Fujimura

IPC分类号： H04W8/04 ,  H04W60/00 ,  H04W60/02 ,  H04W84/16 ,  H04M11/00

CPC分类号： H04W60/00 ,  H04W60/02 ,  H04W8/04 ,  H04W84/16

摘要： A method and arrangement of locating cordless units in a wide area cordless telephone system is disclosed. A service area is previously divided into a plurality of small service zones and, a plurality of cordless units are provided for establishing communications with a system controller via a plurality of access stations. The system controller locates the cordless units and stores therein location data thereof. Each of the cordless units also stores the location data thereof applied from the system controller. A cordless unit issues a request signal which includes cordless unit location data. The request signal is received at an access station which in turn checks to determine if the request signal applied thereto is issued from a cordless unit whose location data indicates a service zone belonging to a predetermined service zone group. In the event that the cordless unit location data applied to the access station is found to fall within the predetermined service zone group, the access station relays the request signal applied thereto, together with a signal level of the request signal, to the system controller.

摘要翻译： 公开了一种在广域无绳电话系统中定位无绳单元的方法和装置。 服务区域先前被划分为多个小服务区域，并且提供多个无绳单元，用于经由多个接入站与系统控制器建立通信。 系统控制器定位无绳单元并存储其中的位置数据。 每个无绳单元还存储从系统控制器应用的位置数据。 无绳单元发出包括无绳单元位置数据的请求信号。 该请求信号在接入站接收，接入站进一步检查确定是否从其位置数据指示属于预定服务区域组的服务区的无绳单元发出施加的请求信号。 在应用于接入站的无绳单元位置数据被发现落在预定服务区域组内的情况下，接入站将应用于其的请求信号与请求信号的信号电平中继到系统控制器。

公开(公告)号：US5438608A

公开(公告)日：1995-08-01

申请号：US213455

申请日：1994-03-14

申请人： Susumu Kojima

发明人： Susumu Kojima

IPC分类号： H04W4/02 ,  H04W4/04 ,  H04W84/16 ,  H04Q7/38

CPC分类号： H04W4/04 ,  H04W4/02 ,  H04W84/16

摘要： A cordless telephone system or similar mobile radio communication system which limits the service available for a mobile unit or radio terminal in an exclusive zone assigned to the terminal and removes the limitation in a common zone while opening all the zones to a particular radio terminal. Assuming a single building accommodating a plurality of companies, the area where radio terminals can be serviced is limited on a companay basis. All the terminals belonging to the respective companies are serviced at a restaurant, lobby or similar common space inside the building. An exclusive terminal for a guard, for example, is serviced in all the arears inside the building.

摘要翻译： 一种无绳电话系统或类似的移动无线电通信系统，其限制在分配给终端的专用区中的移动单元或无线终端可用的服务，并且在将特定无线电终端打开所有区域的同时消除公共区域中的限制。 假设容纳多个公司的单一建筑物，可以在同一基础上限制无线电终端可以维修的区域。 属于各公司的所有终端都在建筑物内的餐厅，大厅或类似的公共空间提供服务。 例如，一个卫兵的独家终端在建筑物内的所有地区都提供服务。

公开(公告)号：US5285469A

公开(公告)日：1994-02-08

申请号：US712239

申请日：1991-06-07

申请人： Jeffrey S. Vanderpool

发明人： Jeffrey S. Vanderpool

IPC分类号： H04B7/26 ,  H04J13/00 ,  H04W16/16 ,  H04W36/14 ,  H04W84/16 ,  H04L27/30

CPC分类号： H04W36/0066 ,  H04B7/2618 ,  H04B7/2628 ,  H04J13/00 ,  H04W36/14 ,  H04W4/16 ,  H04W76/02 ,  H04W84/16

摘要： A system for accessing a telephone system, in which a set of user stations are matched with a set of base stations for connection to a telephone network. Each base station may be coupled directly or indirectly to the telephone network and may be capable of initiating or receiving calls on the telephone network. Each user station may comprise a spread-spectrum transmitter or receiver and may be capable of dynamic connection to selected base stations A plurality of base stations may be coupled to a private exchange telephone system for coupling user stations in calls outside the telephone network. User stations may use CDMA, FDMA, TDMA or other multiple-access techniques to obtain one or more clear communication paths to base stations. Base stations may be placed at convenient locations or may themselves be mobile. User stations may make and break connections with base stations as the user station moves between service regions, or is otherwise more advantageously serviced by, base stations. User stations may direct requests to and receive information from an enhanced telephone services processor, so as to obtain enhanced telephone services within the telephone network. Base stations may be coupled to each other by means of a private exchange telephone system or other small business telephone system (such as a PBX, Centrex, or key-type system) so as to couple user stations in calls outside the telephone network. User stations may also be coupled directly or indirectly to the telephone network on their own or by another access path, such as narrowband or spread-spectrum cellular telephone circuits.

摘要翻译： 一种用于访问电话系统的系统，其中一组用户站与用于连接到电话网络的一组基站匹配。 每个基站可以直接或间接地耦合到电话网络，并且可以能够在电话网络上发起或接收呼叫。 每个用户站可以包括扩频发射机或接收机，并且能够动态地连接到所选择的基站。多个基站可以耦合到专用交换电话系统，用于在电话网络外的呼叫中耦合用户站。 用户站可以使用CDMA，FDMA，TDMA或其他多址技术来获得到基站的一个或多个清除通信路径。 基站可以放置在方便的位置，或者可以是移动的。 当用户站在服务区域之间移动时，用户站可以使基站断开连接，或者由基站更有利地服务于基站。 用户站可以向增强电话服务处理器发送请求并从其接收信息，以便在电话网络内获得增强的电话服务。 基站可以通过专用交换电话系统或其他小商业电话系统（例如PBX，Centrex或密钥型系统）彼此耦合，以便在电话网络外的呼叫中耦合用户站。 用户站也可以直接地或间接地耦合到电话网络，或者通过另一个接入路径，比如窄带或扩频蜂窝电话线路。

公开(公告)号：US5283817A

公开(公告)日：1994-02-01

申请号：US686469

申请日：1991-04-17

申请人： Toshihiro Hara ,  Yukihiro Shimura ,  Shinji Kumataka ,  Kosuke Hashimoto

发明人： Toshihiro Hara ,  Yukihiro Shimura ,  Shinji Kumataka ,  Kosuke Hashimoto

IPC分类号： H04B7/26 ,  H04W84/16 ,  H04M11/00

CPC分类号： H04W84/16 ,  H04W28/16 ,  H04W48/08 ,  H04W76/02 ,  H04W8/26

摘要： In a cordless key telephone system for covering multiple service areas, access units are divided into groups corresponding respectively to the service areas, the access units of each group being located in the corresponding service area for broadcasting a recurrent sequence of address signals on a two-way radio control channel and carrying speech signals on an assigned two-way telephone channel. The access units of each group has a uniquely assigned control channel different in frequency from the control channel of the other group. Cordless stations are switchable to the control channel of a first group of the access units for detecting an address signal and subsequently switchable to the control channel of the access units of a second group if the address signal is not detected in a first sequence for detecting the addressed signal in a second sequence. A main controller is coupled to a switched telephone network for causing the access units to broadcast the address signals in response to an incoming call from the network and for establishing a connection between the network and one of the cordless stations.

摘要翻译： 在覆盖多个服务区域的无绳电话系统中，接入单元被划分为分别对应于服务区域的组，每个组的接入单元位于相应的服务区域，用于在二维网络上广播地址信号的复现序列， 在指定的双向电话信道上携带语音信号。 每个组的接入单元具有与另一组的控制信道频率不同的唯一分配的控制信道。 无绳电台可切换到第一组接入单元的控制信道，用于检测地址信号，并且如果在第一序列中没有检测到地址信号，则可以切换到第二组的接入单元的控制信道， 寻址信号。 主控制器耦合到交换电话网络，用于使得接入单元响应于来自网络的呼入而广播地址信号，并且用于建立网络与无绳站之一之间的连接。

公开(公告)号：US5274694A

公开(公告)日：1993-12-28

申请号：US861965

申请日：1992-07-17

申请人： Robert Lechner ,  Josef Forer

发明人： Robert Lechner ,  Josef Forer

IPC分类号： H04B7/26 ,  H04W84/16 ,  H04M11/00

CPC分类号： H04W84/16

摘要： Cordless network terminating units (CNTn) with a remote power-feeding device are connected via U interfaces (U) to a radio communication network with digital local exchanges (DIV-O). The cordless network terminating unit (CNTn) is associated with mobile sections (MT1-MT80). The cordless network terminating units (CNTn) are connected via digital subscriber line modules (SLMD) and digital subscriber line units (DLU) via a packet switching network (Datex-P) to the data processing system (SP) of a service provider. When a connection is being set up, the authorization of the subscriber is directly checked with a database as "authentication" by the service provider. The data transmission occurs via a composite p channel of the ISDN network. This makes it possible to implement party lines and operate different service networks.

摘要翻译： PCT No.PCT / EP90 / 02258 Sec。 371日期：1992年6月17日 102（e）日期1992年6月17日PCT 1990年12月19日PCT PCT。 公开号WO91 / 10333 日期：1991年7月11日。具有远程供电装置的无线网络终端单元（CNTn）通过U接口（U）与数字本地交换机（DIV-O）连接到无线电通信网络。 无绳网络终端单元（CNTn）与移动部分（MT1-MT80）相关联。 无线网络终端单元（CNTn）通过数据用户线路模块（SLMD）和数字用户线路单元（DLU）经由分组交换网络（Datex-P）连接到服务提供商的数据处理系统（SP）。 当正在建立连接时，用户的授权直接由数据库作为服务提供商的“认证”检查。 数据传输通过ISDN网络的复合p信道进行。 这使得可以实现派对线路并且操作不同的服务网络。

公开(公告)号：US5260941A

公开(公告)日：1993-11-09

申请号：US890720

申请日：1992-05-29

申请人： Ronald Wilder ,  Gregory Pierce ,  Richard C. Frey ,  Whitney E. Childs-Goodrich ,  David L. Needle

发明人： Ronald Wilder ,  Gregory Pierce ,  Richard C. Frey ,  Whitney E. Childs-Goodrich ,  David L. Needle

IPC分类号： H04W84/16 ,  H04L5/22

CPC分类号： H04W84/16

摘要： The telephone system of the present invention is realized by a unique dynamic time slice architecture which allows for up to 480 transfers of data. A dual port RAM is utilized in which are stored two pages of data, containing time slice information identifying the sending and receiving devices for each time slice slot within the frame. The time slice configuration can be easily modified to accommodate a change in the current system configuration, for example, a handset connecting or disconnecting from a central office line, or the initiation of a conference call. The time slice configuration is modified by updating the second page and swapping the two pages at the beginning of the next frame so that the time slice controller accesses the second page and the configurations specified therein. Thus the system can be updated and controlled in real time with no delays to the users of the telephone system. The telephone system of the present invention further provides a dynamic conferencing capability which can accommodate a large number of users with no additional circuitry and little additional system overhead. The conferencing circuit linearly combines digitized audio data received from different sources over successive time slice slots in a single frame on a real time basis wherein parties can be added or removed simply by adding or removing the connections to the time slice slots.

摘要翻译： 本发明的电话系统通过独特的动态时间片结构来实现，其允许多达480个数据传输。 使用双端口RAM，其中存储两页数据，其中包含标识帧内每个时间片时隙的发送和接收设备的时间片信息。 可以容易地修改时间片配置以适应当前系统配置的变化，例如，连接或断开与中心局线路的手机或者召开电话会议。 通过更新第二页并在下一帧的开头交换两个页面来修改时间片配置，使得时间片控制器访问第二页以及其中指定的配置。 因此，可以实时更新和控制系统，而不会延迟电话系统的用户。 本发明的电话系统还提供动态会议能力，其可以容纳大量用户，没有额外的电路和少量额外的系统开销。 会议电路在实时基础上将单个帧中连续时间片时隙上的从不同来源接收的数字化音频数据线性组合，其中可以通过添加或去除与时间片时隙的连接来简单地添加或删除各方。

公开(公告)号：US5255308A

公开(公告)日：1993-10-19

申请号：US652724

申请日：1991-02-08

申请人： Tadao Hashimoto ,  Kazushige Tanaka

发明人： Tadao Hashimoto ,  Kazushige Tanaka

IPC分类号： H04W84/16 ,  H04M11/00

CPC分类号： H04W84/16

摘要： In a wide area cordless telephone system, an individual-call signal is generated if an incoming call from the telephone network is an individual call to one of cordless stations of a group and a group-call signal is generated if it is directed to all cordless stations of the group. A group of access units are associated with the cordless station of each group to establish a control channel and speech channels with the cordless stations. The access units respond to the individual-call signal by transmitting a speech channel identifier to one of the cordless stations through the control channel and transmitting a ringing signal through a speech channel specified by the speech-channel identifier. In response to the group-call signal, speech-channel identifiers are successively transmitted from the access units to the cordless stations through the control channel and group ringing signals are respectively sent to the cordless stations through speech channels specified by the speech-channel identifiers. In a modified embodiment, the cordless stations receive pairing identifiers each containing a pair of an access unit identifier and a cordless station identifier and transmit a response containing one pairing identifier that specifies the own station. The access units also receive pairing identifiers from the controller for detecting a match with those received from the cordless stations. If a match is detected by each access unit, it is entitled to send a speech-channel identifier to the cordless station which is specified by the matched identifiers.