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7194249 Methods, systems and apparatus for providing urgent public information  
Embodiments of the invention provide systems and methods for distributing urgent public information. For example, one exemplary of the invention provides a method for providing an alert to a...
7023832 Paging system with spacial, frequency and time diversity  
A highly reliable radio paging system with a combination of time, frequency and spacial diversity in order to increase the reliability of the system. Time diversity is provided by broadcasting the...
6801121 Pager having simultaneous multichannel scanning function and data transmitting/receiving method thereof  
A paging system separately transmits high capacity data through at least two paging channels of limited transmission rates in order to provide the high capacity data in real-time. A pager receives...
6771616 Sequential combined QPCH demodulation  
A system determines if a primary paging channel should be received based on an examination of a quick paging channel. A first QPCH symbol is examined ( 102 ) and the normalized pilot energy is...
6768770 Transceiver with bidirectional internal interface lines  
A transceiver has bidirectional internal interface lines which can be connected to a baseband circuit. The transceiver is switchable by the baseband circuit between a transmission mode and a...
6622011 Paging  
An improved paging procedure for use in a low power radio communications network. A transceiver which pages a device by periodically transmitting a series of messages, comprises a transmitter...
6587034 Data communication device  
Simplified data message terminals and data communicating voice terminals are described for providing additional functionality in a facility using a wireless data communication system. The...
6515971 Method and apparatus to enable background scanning  
A method is provided for background scanning in a selective call communication system ( 102 ) having a plurality of channels ( 110, 112, 114 ), wherein a selective call device ( 104 ) has...
6515577 Channel monitoring by a multichannel selective call receiver  
A multichannel selective call receiver ( 10 ) includes-a receiver ( 11 ), a controller ( 16 ), a baud detector ( 17 ) and a memory ( 18 ). The controller is adapted to control the receiver in...
6459686 Multichannel selective call receiver  
A pager ( 20 ) for operating within the communication environment of a cyclical frame based synchronous selective call system. The pager ( 20 ) has a receiver ( 22 ) for receiving selective call...
6433668 Paging system with spacial, frequency and time diversity  
The present invention provides a highly reliable radio paging system. The radio paging system of the present invention provides a combination of time, frequency and spacial diversity in order to...
6360097 Method and apparatus in a wireless communication unit for controlling a rate of background scanning  
A processor ( 206 ) and a receiver ( 202 ) monitor ( 301 ) a channel. The processor determines ( 304, 306 ) an average received signal quality on the channel and a first derivative of the average...
6292660 Adaptive site scanning based on fade base estimation  
Methods and systems for controlling site scanning of a wireless device by adjusting the rate at which the wireless device site scans based on whether the wireless device is in motion. Furthermore,...
6292655 Selective calling radio-receiver and method of receiving selective calling radio signal  
There is provided a selective calling radio-receiver including (a) a demodulator demodulating a received selective calling radio signal, (b) a waveform-shaper shaping waveform of a demodulation...
6243561 Offline page monitoring  
A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a...
6198926 Method for establishing standby periods in a base station and a handset  
An invention is disclosed having a base station and a plurality of handsets connected to this base station by various radio channels. For saving on accumulators which supply power to these...
6195532 Method for categorization of multiple providers in a wireless communications service environment  
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers...
6141535 Communication systems for controlling registration of selective call devices  
A method in a communication system (100) having at least a first and a second base stations (104, 108) for communicating with selective call devices (102) includes the steps of transmitting a first...
6119024 Mobile radio system  
A mobile radio system provides an appropriate usage environment in accordance with how often a mobile station is used. The base station informs via a broadcast channel each of the mobile station of...
6115582 Radio selective-calling receiver  
A radio selective calling receiver for bringing into possible to implement leading-in synchronization rapidly by performing rapid-scan by virtue of switch manipulation as a trigger in the receiver...
6115581 Apparatus for communication using multiple radio processing modules  
Apparatus for communication using multiple radio processing modules is disclosed herein. The apparatus for communication mentioned above receives a first radio signal and a second radio signal from...
6111865 Dual channel slotted paging  
A novel and improved method and system for paging a cellular telephone or other wireless terminal using two paging channels that reduces standby mode power consumption described. In one embodiment...
6108541 Method for searching a control channel in a mobile station  
A control channel is searched for call waiting in a mobile station where the power supply for a receiving circuit is turned off during a break time of receiving level measurements, wherein in a...
6108519 Mobile communications system  
A mobile communications system includes a service-providing base station for providing down-link communication to the mobile station to transmit broadcast service data to a mobile station. In a...
6097933 Method and apparatus for conserving power in a pager  
A paging protocol includes header synchronization and system information segments containing information that allows a pager to conserve power. These segments can indicate a schedule of...
6057783 Multi-area radio pager with repeated resynchronizations interposed by frequency scanning process  
A multi-area pager includes a scan list table having multiple entries for storing data representing frequencies and area codes and an area information table for storing data representing a...
6052562 Method and apparatus for coordinating an operating channel selection  
Methods of and corresponding apparatus for scheduling messages on an operating channel (123) in a selective messaging system (100) for a selective messaging unit (135) include choosing a preferred...
6023230 Method and apparatus for effecting channel acquisition  
Methods of and corresponding apparatus for scheduling messages on an operating channel (223) in a selective messaging system (200) for a messaging unit (235) include scheduling a first message,...
5929772 Data processing device and method for use in a paging receiver  
A data processing device of a paging receiver having a controller for analyzing decoded paging data and for performing a paging function, wherein address data and message data of all frames are...
5877701 Radio pager reporting frequency band information  
A radio pager of the present invention includes a non-volatile memory storing frequency information for each of a plurality of frequency bands for the confirmation of a frequency band. The...
5875387 Method and apparatus for receiving a radio signal within a home control channel in a multichannel radio communication system  
In a system controller (102) a quantity of control channels is determined; a portion (344) of a code word (338) is set to identify the quantity of control channels; the code word (358) is...
5872518 Wireless selective calling receiver with a method and a system for releasing a frequency channel lock  
A wireless selective calling receiver performs an intermittent receiving operation in a channel lock state. The channel lock is canceled when a detected network information is judged to be...
5857145 Radio pager  
A radio pager of the present invention is capable of determining, during automatic area switching operation, a frequency having a high field strength by excluding the other frequencies having low...
5845198 Method for optimal selection among multiple providers in a wireless communications service environment  
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers...
5801639 Method for optimizing transmission of messages in a communication system  
A method and apparatus in a radio communication system that employs frequency reuse is used for optimizing transmission of messages to a selective call transceiver (116). The radio communication...
5801638 Selective call receiver with independent control of displayed service area data and selected radio channel  
A selective call receiver includes a relational data memory and a call number display processor in addition to a service area selector. The relational data memory stores plural data groups each...
5754944 Silent link establishment  
A method of synchronizing the frequency and time of commencement of high frequency (HF) radio communication between an initiating station and a receiving station in which transmissions from the...
5740534 Method for determining available frequencies in selective call receivers  
A selective call receiver (106) has a frequency synthesizer (708) for scanning a plurality of frequencies to determine a control channel to receive a signal and a receiver (704) for receiving the...
5740533 Congestion control system and method for efficient multi-frequency messaging  
A congestion control method (1040) for a messaging system having a plurality of scanning selective call receivers with roaming capability comprises the steps of storing (1041) a priority value...
5689806 Communication receiver for selecting between scanning and locking to a channel and method therefor  
A channel scanning communication receiver (204) operates in a system that transmits information in cycles (104) including subsequences (106). The receiver determines whether to operate in a...
5686898 Paging network identification information distributed in address field  
A method by which a data communication receiver may recognize a specific channel comprises the steps of receiving (1605) a data stream on a first channel for a first amount of time to determine...
5682147 Method and apparatus for selecting a receive frequency in a communication receiver  
A method and apparatus select a receive frequency of a receiver (400) in a system having coverage areas divided into zones. A primary scan list is stored in the receiver (400) and contains coverage...
5625351 Messaging system having roaming capability  
A messaging system capable of transmitting messages to receivers which roam between coverage areas. In one configuration, a coverage area (100) is divided into a plurality of zones (110). A single...
5613212 Paging method and apparatus  
A two-way paging system utilizes four local frequencies for transmissions between pager units (22) and a central control station (20). A first local frequency (f 1 ) carries a local clock; a second...
5603090 Automatic channel identification  
A method for tracking, in a roaming receiver, RF channels in a multi-area system where each area has a unique RF channel and each unique RF channel has a unique address for each user. A plurality...
5596315 Message unit for use with multi-beam satellite-based messaging system and method of operation thereof  
A satellite-based, world-wide cellular messaging system transmits paging messages to pagers via multiple beams. A message unit monitors multiple beams, recording the visit information for each...
5565859 Method of detecting a paging channel in a multi-frequency radio pager network  
In order to detect a paging channel assigned to a pager in a shorter time in a frequency divided pager network system, a plurality of paging channels given priorities in channel searching are...
5537415 Multi-channel personal messaging unit  
A mobile communications system in accordance with the invention comprises primary and secondary wireless digital communications networks. The system also comprises a wireless mobile messaging unit....
5532683 Paging receiver and radio frequency channel searching method for the same  
A paging receiver is provided for use with a plurality of paging service systems transmitting different radio frequency channels. The paging receiver searches for every reception channel and...
5517677 Adaptive weighting of a scanning sequence  
A scanning technique that is preferential as to communication channels actually utilized in the past. A programmable queue is written with a communication channel identity code based on a...
Matches 1 - 50 out of 117 1 2 3 >