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| Number | Title | Issue Date |
| 5521961 | Mobility management method for delivering calls in a microcellular network In a method of providing cellular telephone service to a mobile telephone located in an off-load cellular telephone system adjacent to a main cellular telephone system, the mobile telephone is registered with the off-load cellular telephone system upon th... | 05/28/1996 |
| 5513242 | Method and apparatus for facilitating the ultimate making of wireless data transfers Unnecessary expenses associated with exchanging data with wireless data stations that have become unavailable are avoided, in accordance with the principles of the invention, by a) transmitting the data to be transmitted to a store and forward unit; b) ma... | 04/30/1996 |
| 5509052 | Base storage of handset's base registrations A CT-2 base's intelligence (36) is enhanced by having a handset (12) transmit (418) its base registration history to the base station (24) such that the base can determine (724) whether the handset is correctly registered. The handset (12) requests (606) ... | 04/16/1996 |
| 5490203 | Method and system utilizing a location caching strategy to locate nomadic users in a communication services system Method and system for locating nomadic users in a personal communication services (PCS) system by utilizing two strategies for locating such users and a per-user criterion for determining which, if any, of the two strategies should be used. The method and... | 02/06/1996 |
| 5475689 | Cellular telephone with datagram and dispatch operation A cellular system supports dispatch and datagram operations. The architecture of a conventional cellular system, such as the GSM system, is modified by adding a local area network (TIL) where nodes on the network include various base switching controllers... | 12/12/1995 |
| 5471643 | Radio telecommunication apparatus The cellular mobile telephone apparatus comprises a radio unit having an antenna which is connected to a base station provided in a cell via a radio channel, and a telephone unit which is connected to the radio unit via a line and is formed of a main unit... | 11/28/1995 |
| 5469496 | Personal communications service using wireline/wireless integration The Advanced Intelligent Network (AIN) wireline system connects to and controls processing of calls to a Personal Communication Service subscriber's wireless handset via a home base station or a wireless communication network. Depending on its current loc... | 11/21/1995 |
| 5446553 | Wireless fax reception method with rooming The present invention allows for a communication device (136) which roams within a communication system (100), the ability of maintaining in contact with other communication units, even while the unit is away from its home sub-system. Communication system... | 08/29/1995 |
| 5412760 | Circuit arrangment for switched networks consisting of exchanges, preferably telephone networks A telecommunication exchange system in which the fixed location subscribers, like the mobile station subscribers, are provided with individual identifications which are used to assign communication channel pairs to each call to and from both fixed and mob... | 05/02/1995 |
| 5379451 | Mobile communication system and location registration method in mobile communication system A mobile station, operable in a mobil communication system that executes a location registration processing by using the channel quality of a base station and an information concerning a base station the mobile station includes a base station information ... | 01/03/1995 |
| 5361396 | Location registration system in mobile communication In a mobile communication system in which the service area is covered with a plurality of location registration areas each having a plurality of cells each relating to a specific base station, each location registration area has a plurality of groups so t... | 11/01/1994 |
| 5345474 | Temporary address system in a radio communication system According to the temporary address system in the radio communications system of the present invention, as a temporary address data, an identification number determined based on the number of repeated zones in which the pattern of the same frequency is rep... | 09/06/1994 |
| 5325419 | Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off A wireless digital personal communications system (or PCS) having a plurality of intelligent base stations and portable handset terminals, each having a predetermined radio cell coverage area. The radio cell, radio-telephone PCS has a full ISDN interface.... | 06/28/1994 |
| 5315637 | Apparatus and method for controlling the routing of incoming calls in a wireless communication system A wireless communication system (WCS) comprises a plurality of portable communication units (PCUs) (109) each PCU having a telephone number for receiving incoming calls. The WCS is coupled to the public switched telephone network (PSTN) (106), and has a p... | 05/24/1994 |
| 5305466 | Location registration and paging procedure for mobile communication A mobile communication system in which overlapping location areas are defined by radio base stations on an autonomous distribution basis. In a first embodiment, a mobile station registers the location thereof when moved in a radio zone which is not includ... | 04/19/1994 |
| 5301223 | Cellular telephone system with remote programming, voice responsive registration and real time billing Method and apparatus for use in a mobile telephone rental system in which credit card information is communicated between the mobile telephone unit 100 and a Voice Response System 302 for customer registration and remote programming of mobile telephone un... | 04/05/1994 |
| 5289527 | Mobile communications device registration method A distance based method for mobile station registration in a cellular communication system. The mobile station registers whenever it moves into a new cell that is greater than some predefined distance from the previous cell where it registered. Cell base ... | 02/22/1994 |
| 5247698 | Use of an audit message sent to mobile stations to confirm the location thereof A mobile communications system includes at least one subscriber; a home exchange for the at least one subscriber; at least two exchanges, which may include the home exchange, that may be accessed by the at least one subscriber; and means for ensuring that... | 09/21/1993 |
| 5243645 | Automatic system for forwarding of calls Messages (such as telephone calls or data messages) are automatically forwarded to an individual who is away from his/her home or office based upon information obtained when the individual engages in a transaction or activity, such as making a credit card... | 09/07/1993 |
| 5230083 | Method for reducing control channel traffic in a communication system In a network of communication systems, control channel traffic can be reduced in a communication system in the following manner. When a source communication unit initiates a communication with at least one target communication unit, that source communicat... | 07/20/1993 |
| 5222123 | Registration and automatic call redirecting for cordless telephone systems A method for redirecting calls to a cordless telephone wherein the user of the cordless telephone registers a location code at a call redirecting module. The location code informs the call redirecting module to redirect calls, that are directed to a first... | 06/22/1993 |
| 5210787 | Subscriber interrogation point In a cellular radio communications network a plurality of mobile switching centers have data access to a subscriber interrogation point which maintains a database identifying the home exchange of a plurality of mobile stations, the home exchanges of which... | 05/11/1993 |
| 5210786 | Portable telephone system using stratified exchange system A portable telephone system is disclosed in which a plurality of i-th class exchanges, which accommodate key service units of a plurality of portable telephone sets present in each service area, and at least one (i+1)th class exchange which accommodates t... | 05/11/1993 |
| 5197092 | Location registration system for a personal communicator such as a cellular telephone A personal communicator receiving station, also known as a holster, is capable of receiving a personal communicator unit and communicating therewith. Such receiving stations may be at various locations, including a subscriber's home, office, automobile an... | 03/23/1993 |
| 5195127 | Radio telephone system and its control method A radio telephone system which is suitable when the number of radio telephone sets is relatively small, communication traffic is low, and the system must cover a wide communication area, and a method of controlling the system is disclosed. In the system, ... | 03/16/1993 |
| 5134645 | Automatic and sustained association of users with communications paths In a network of interconnected wireless networks and wired telephone networks, there is provided a mechanism for sustained association of users with communications paths. It comprises: upon an attempted use of an unassociated telephone, identifying onesel... | 07/28/1992 |
| 5109400 | Communication system with registration and two way radio A radio communication system with on/off premise registration is provided. When a radio is registered with the system, incoming calls for the radio are directed to the radio via the system. When the radio is registered as off the system information is tra... | 04/28/1992 |
| 5097499 | Autonomous registration overload control for cellular mobile radio systems Registration signal channel overloads occurring due to overly numerous autonomous registration messages initiated by the mobile radiotelephones are averted by monitoring the number of autonomous registrations occurring or requested in a particular local c... | 03/17/1992 |
| 5077790 | Secure over-the-air registration of cordless telephones A method for registration of a portable unit that may be utilized in a communication system that comprises a network controller, having a data base for storing portable identification numbers, a base station, and a portable unit, wherein a subscriber comm... | 12/31/1991 |
| 5054110 | Multi-site dispatching system cell registration A trunked communication system wherein less than all of the communication units may transmit an identifying data word thereby registering their location to a system controller every time they enter a different coverage area, while the remainder of the com... | 10/01/1991 |
| 5003629 | Arrangement for identifying subscribers In a multiple RF communication system arrangement wherein a subscriber has a first identification number (ID) within a first RF communication system, and wherein the subscriber has a second ID within a second RF communication system, an arrangement (400) ... | 03/26/1991 |
| 4972355 | Method for radiotelephone autonomous registration A cellular radiotelephone autonomous registration method. The radiotelephone attempts registration when a clock count transmitted by the system equals or exceeds the radiotelephone's threshold count (201). The radiotelephone then scans (202) available cha... | 11/20/1990 |
| 4876738 | Mobile radio transmission system A mobile radio tarnsmission system comprises a plurality of base stations (BS) with corresponding service areas (SA) which together cover a geographical area through which mobile stations (M) can roam. Each base station is connected to a central station (... | 10/24/1989 |
| 4852148 | Radio telephone system A radio telephone system has a radio telephone set which has a receiving circuit the power of which is turned on or off in predetermined cycles, a radio connector transmit an ID number of the radio zone where it exists for a longer period than the period ... | 07/25/1989 |
| 4775999 | Registration of radiotelephones in networked cellular radiotelephone systems Adjacent cellular systems (101-103) are interconnected to form a network providing telephone coverage to mobiles located throughout their combined coverage areas (111-113). Each networked cellular system (101-103) includes base sites (412, 414, 416) locat... | 10/04/1988 |
| 4771448 | Private cellular system A cellular mobile radio communication (e.g. telephone) system (hereinafter referred to as a private cellular system, PCS) that does not have the constraint of being a well defined, pre-planned system. The present invention differs from previous systems la... | 09/13/1988 |
| 4748655 | Portable telephones A personal portable telephone (11) allows the user access to the cellular radio network via a number of different gateways including a communal unit (15, 16), user's mobile telephone set (9), home telephone (13) or office PABX (14). The telephone (11) can... | 05/31/1988 |
| 4737978 | Networked cellular radiotelephone systems Adjacent cellular systems (101-103) are interconnected to form a network providing telephone coverage to mobiles located throughout their combined coverage areas (111-113). Each networked cellular system (101-103) includes base sites (412, 414, 416) locat... | 04/12/1988 |
