Matches 1 - 40 out of 40
Match Document Document Title
7245596 Modularly clustered radiotelephone system  
A subscriber cluster unit for a wireless telecommunication system provides a wireless interface with a base station for a plurality of subscriber units. The cluster unit has a plurality of...
7106819 Plural subscriber system utilizing synchronized timeslots on a single frequency  
A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber...
6954470 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system and method for wireless communication between a plurality of subscriber units and a base station, the base station communicating information signals from an originating source to a...
6842440 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system and method for wireless communication between a plurality of subscriber units and a base station, the base station communicating information signals from an originating source to a...
6771667 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A subscriber unit synchronizes to a control channel. An assigned frequency and time slot is transmitted on the control channel to the subscriber unit. The subscriber unit is moved from the control...
6711223 Base station emulator  
A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber...
6496488 Modularly clustered radiotelephone system  
A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of...
6393002 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A digital telephone system for processing a plurality of information signals received in parallel over telephone lines from a public network exchange which are then transmitted in parallel over a...
6282180 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A telecommunication system for processing a plurality of simultaneous bidirectional communications includes a primary station and at least one secondary station using wireless transmissions over...
6208630 Modulary clustered radiotelephone system  
A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of...
EP1046240A1 A METHOD FOR USING CIRCULAR SPREADING CODES TO ACHIEVE HIGH BIT DENSITIES IN A DIRECT-SEQUENCE SPREAD SPECTRUM COMMUNICATIONS SYSTEM  
Abstract not available for EP1046240 Abstract of corresponding document: US6026118 A method for achieving high bit densities in a direct-sequence spread spectrum communication system by using...
6014374 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A telecommunication system for processing a plurality of simultaneous bidirectional communications includes a primary station and at least one secondary station using wireless transmissions over...
5930297 Base station emulator  
A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber...
5852604 Modularly clustered radiotelephone system  
A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of...
5734678 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A terrestrial Rf telephone system provides a plurality of voice signal channels on a plurality of forward direction carrier frequencies, each carrier frequency having an associated predetermined...
5732075 Assignment of a carrier frequency in an SDMA radio system  
To assign a carrier frequency to different mobile stations in a conventional Space Division Multiple Access (SDMA) radio system, the stations are differentiated according to the direction in space...
5657358 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or plurality of RF channels  
A toll quality terrestrial wireless digital multiple access terrestrial communication system is disclosed having a base station in communication with telephone lines and with mobile subscriber...
5625653 Base station emulator  
A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber...
5495508 Base station emulator  
A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber...
EP0160993B1 Radio-system  
Abstract of EP0160993 A radio system with mobile and stationary radio stations is described, in which the radio stations communicating with one another set the transmitting power of the respective...
EP0179898B2 A TWO WAY PERSONAL MESSAGE SYSTEM WITH EXTENDED COVERAGE  
Abstract not available for EP0179898 Abstract of corresponding document: US4644351 A communications system for carrying messages via a radio channel between one central site of a plurality of...
5119375 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system and method for the wireless transmission of information signals between a base station and a plurality of subscriber stations. The method may include a base station receiving an...
5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber...
4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber...
RE32789 Transmission trunk multichannel dispatch system with priority queuing  
A communication system of the type wherein a central station assigns a limited number of information channels to a requesting one of a plurality of remote stations is disclosed. The requesting...
4635285 Communication system with voice priority for remote stations  
A two-way radio communications system of the simplex or half-duplex type having a communication link to a duplex telephone system is provided wherein the simplex or half duplex mobile radio is...
EP0180238A2 Digital radio communication system.  
Abstract not available for EP0180238 Abstract of corresponding document: US4683566 A digital radio communication system in the form of a multi-direction time division multiplex network including a...
4573207 Queued community repeater communications system  
A communication system which controls access to a single communications channel by a plurality of remote units arranged in predetermined groups is disclosed. Assignment of the channel is controlled...
EP0160993A2 Radio-system.  
A radio system with mobile and stationary radio stations is described, in which the radio stations communicating with one another set the transmitting power of the respective other radio station...
EP0003633A1 A method of and an apparatus for a radiotelephone communications system.  
A telephone system for providing communications between mobile radiotelephones, portable radiotelephones and land-line telephones, includes a land-line telephone system including a land-line...
4145657 Radio transmission system for two subscribers to have a mutual connection on one of several frequency channels and having time multiplex interlace of preferred channels  
A radio transmission system in which two subscribers use only one of possibly several frequency channels for a mutual connection is characterized in that in the individual frequency channel which...
4125808 Automatic sequential search for a radio relay network  
This invention involves the implementation of a mobile, automatic range extension network for a communication system, such as may be used by a field army. Range extension techniques related to this...
4121158 Radio system  
A radio system includes a fairly large number of transmitting-receiving stations which are spatially distributed over an area to be covered. Each of the stations preferably serves a fairly large...
4017799 High speed multiplex data transmission system  
5. A high-speed data transmission system comprising a central station, a plurality of control positions connected to said central station, a transmitter connected to said central station, an...
3739102 TRANSMITTER RECEIVER FOR RADIO TELEPHONE NETWORK  
Device ensuring the selection of a fixed connection extension located so as to provide a good quality connection exclusive of other fixed extensions which are not so favorably located. The intended...
3692952 APPARATUS FOR ESTABLISHING A TELEPHONE TO RADIO-TELEPHONE COMMUNICATION  
The invention concerns duplex radiocommunications at variably-selected carrier frequencies. It describes a concentrator ensuring the duplex connection at variably-selected carrier frequencies...
3610833 DEVICE FOR THE DOUBLE-CALL OPERATION OF A TELEPHONE SET CONNECTED TO AN EXCHANGE BY RADIO CHANNEL  
Device for the double call operation of a telephone set connected to an exchange by radio channel including a first repeater connected between the telephone set and the associated radio equipment...
3571519 SYNCHRONOUS SUPERVISORY UNIT FOR MOBILE TELEPHONE SYSTEM  
A synchronous supervisory unit for mobile telephone operation is capable of assuming any one of a plurality of states depending upon the operations to be carried out by the supervisory system. A...
3355556 Automatic mobile radio telephone switching system  
3351714 Mobile radio telephone apparatus  
Matches 1 - 40 out of 40