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| Number | Title | Issue Date |
| 5625868 | Method and apparatus for load sharing in a satellite communication system In a satellite cellular communication system, subscriber traffic is shared between satellites whose antenna coverage patterns overlap during some portion of their orbit. When the power consumption of one satellite exceeds a predetermined level, subscriber... | 04/29/1997 |
| 5625869 | System for preventing unauthorized use of a micro cellular system operating in coexistence with a cellular system A method and system for preventing fraudulent use in a cellular system whereby upon establishment of communication with said micro cellular system, a maintenance console transmits an identifier to the control unit of said micro cellular system. The contro... | 04/29/1997 |
| 5625870 | Fraud control for radio fleets in a land mobile radio system A land mobile radio communication system has a plurality of cell sites, each of which typically has a plurality of repeaters. The over-the-air radio communications between the cell site repeaters and the mobile radios in the system include both a voice co... | 04/29/1997 |
| 5625871 | Cellular communications system with multicarrier signal processing The present invention provides an improved cellular communications system which reduces the dynamic range of a received multicarrier signal. The cellular communications system includes at least one cell site. A base station cooperating with an antenna is ... | 04/29/1997 |
| 5625872 | Method and system for delayed transmission of fast associated control channel messages on a voice channel A system and method reduces degradation of voice quality due to Fast Associated Control Channel (FACCH) format signaling between a mobile station and a base station on the digital voice channel. The present invention sends FACCH messages either at the exp... | 04/29/1997 |
| 5625874 | Terminal station which does not cause an interruption of communication on changing of a communication system For preventing a mobile radio terminal station from causing an interruption of communication on changing of a communication system, a receiving apparatus receives a main and a supplementary modulated signal at a boundary area which is between a main and a... | 04/29/1997 |
| 5625875 | Method for allocating communications resources in a radio communications system A method as shown in FIG. 2 for allocating resources in a radio communications system having a plurality of communications resources for at least one receiver and transmitter to communicate over where the communications resources have signal levels which ... | 04/29/1997 |
| 5625876 | Method and apparatus for performing handoff between sectors of a common base station A method and apparatus providing softer handoff of a mobile unit between sectors of a common base station. A sectorized base station comprises a set of demodulation elements. Each demodulation element may be assigned to a signal from one of a plurality of... | 04/29/1997 |
| 5625877 | Wireless variable bandwidth air-link system An apparatus and method for providing variable bandwidth in wireless air-link communication channels which allows a user of an end-user communicating device, e.g. a cellular phone, computer, facsimile, to request the allocation and aggregation of availabl... | 04/29/1997 |
| 5625878 | Method of allocating radio channels A channel allocation method in a cellular radio system. The mobile radios have permanently stored in their memories a first group of radio channels scanned in a normal hunt sequence and a second group of radio channels scanned in a comprehensive hunt sequ... | 04/29/1997 |
| 5625879 | Channel waiting method for a radio system A channel waiting method in a radio system, in which a plurality of base stations, mobile radio stations and a mobile services switching center which allocates radio channels to all calls in which one or more mobile stations participate and places the cal... | 04/29/1997 |
| 5625880 | Spectrally efficient and high capacity acknowledgement radio paging system An improved radio paging system providing automatic acknowledgment of message delivery, including a base station with spatially directive reception means and a pager capable of transmitting acknowledgment signals. The spatially directive reception means a... | 04/29/1997 |
| 5625881 | Time and frequency diveristy in a radio system having intermittent operation receivers The invention provides a means by which a radio system in a multipath propagation environment may improve the probability of successful reception of a message by the application of diversity. It is applicable to such applications as paging, cordless telep... | 04/29/1997 |
| 5625882 | Power management technique for determining a device mode of operation A power management technique for use in an wireless communication system having a service access point and a plurality mobile battery powered user devices, user devices in communication with each other and with the access point, power management technique... | 04/29/1997 |
| 5625883 | System for wireless information transmission between two different rooms For audio and/or video or control signal transmission between two rooms in, for example, a house, inductive and/or capacitive transmitters and receivers are used which are installed on opposite sides of the partition or wall that separates the rooms. The ... | 04/29/1997 |
| 5625884 | Global paging with reverse virtual call setup in wireless personal communications A method and apparatus providing communications between mobile units and other communications devices, is disclosed wherein, in response to a request to call a mobile unit from an originating communications device, a paging signal is sent via a global com... | 04/29/1997 |
| 5625885 | Mobile communication system having pagers for providing two-way data communication between a base station and mobile stations A mobile communication system has a base station and a plurality of mobile stations. When a mobile station detects a self station code, it transmits the self station code of the mobile station to the base station by using weak radio waves. The base statio... | 04/29/1997 |
| 5625886 | Method for forming groups of communication terminals and use of same A method is proposed in which groups are formed by first broadcasting a group definition message (GDM) in which a logical formula (LF) is included expressing conditions (C1-N) on classification parameters of terminals which may have to be included in such... | 04/29/1997 |
| 5625887 | Method for non-registered communication units to access a communication system A method for a non-registered communication unit to access a communication system consists of sending a service request. Upon receiving a service request, the communication resource allocator assigns an entry in the communication system database to the no... | 04/29/1997 |
| 5625888 | Process for combining transmitting/receiving devices of a cordless communication system to form a communicating unit When base stations (BS1 . . . BSm) and mobile stations (MS1 . . . MSn) of a cordless communication system are combined to form a communicating unit, a supplementary message (M2) is transmitted, in addition to a DECT-specific message (M1), from base statio... | 04/29/1997 |
| 5625889 | RF sniffer module and method with a self-test circuit A RF sniffer module and method for detecting the availability of cellular communication channels for data transmission. The module monitors the channels used in a cellular communication network to determine when a particular channel is idle, meaning it is... | 04/29/1997 |
| 5625890 | Logging recorder system for trunking radio A logging recorder system for trunking radio includes a device which monitors a plurality of channels of the trunking radio system and outputs analog signals representative thereof. A digitizer is then provided for digitizing the analog signals, and a con... | 04/29/1997 |
| 5625891 | Enclosure for tuning paging receivers A pager tuning system (10) that allows an electronic pager (90) to be tuned without having to perform the tuning within a certified screen room. The system (10) is housed within an enclosure (12) that includes an electronics module (36) having an upper ca... | 04/29/1997 |
| 5625892 | Dynamic power regulator for controlling memory power consumption A dynamic power consumption reduction apparatus for reducing power consumption by temporarily delaying multiple data transfer interfaces. Data transfer interfaces are only delayed in rare circumstances where an exceptionally high number of data transfers ... | 04/29/1997 |
| 5625893 | Satellite communications system with receiver distortion correction which is controlled by up-link transmission equipment A satellite communications system with improved intermodulation distortion characteristics as the result of incorporating distortion reduction circuitry in the down-link receiver but which is controlled by the up-link transmission equipment.... | 04/29/1997 |
| 5625894 | Switch filter having selectively interconnected filter stages and ports A switch filter is disclosed wherein switches are incorporated into the filter and divide the filter into various half-filters. The switch filter includes parallel and series LC circuits, switches, two input ports and two output ports where the input and ... | 04/29/1997 |
