Matches 1 - 50 out of 76 1 2 >
Match Document Document Title
7349532 Picture and video message center system  
A message originator sends a picture or video message to a message center along with caller identifying information. The message is stored in a memory and transmitted to a wireless picture phone,...
7310416 Method and apparatus for improved personal communication devices and systems  
A system for adding or updating contact data in a wireless communication device, cellular telephone, pager or personal digital assistant (PDA) is shown. Contact data associated with actual or...
7308088 Method and apparatus for improved personal communication devices and systems  
Contact data in a database for a wireless personal communication device are remotely updatable from, or transferable between, a computer system using a radio frequency connection. New contact data,...
7305076 Method and apparatus for improved paging receiver and system  
A wireless information communication system and method, such as a paging network, that provides caller identification information transmitted from the public switched telephone network to a pager,...
7286658 Method and apparatus for improved personal communication devices and systems  
A method for use in a wireless communication device, cellular telephone, pager or personal digital assistant (PDA) is shown in which Caller ID data originating from the public switched telephone...
7266186 Method and apparatus for improved paging receiver and system  
Contact data in a phonebook database for a personal communication device are remotely updateable from, or transferable between, a computer system using a wireless radio frequency connection. New...
7257210 Picture phone with caller id  
Pictures are transmitted to a wireless picture phone with caller ID from a message originator and used by the message recipient to identify who is to sending the picture. In one embodiment the...
7254223 Method and apparatus for improved personal communication devices and systems  
Contact data in a database for a wireless personal communication device are remotely updatable from, or transferable between, a computer system using a radio frequency connection. New contact data,...
7251318 Method and apparatus for improved personal communication devices and systems  
An apparatus and method provide a database in a pager that contains menus that may be displayed on a pager display. A paging service sends a page including an identification, retrieves a menu from...
7212825 Network communication system using a single reservation request made with randomly generated information to identify a node  
A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the...
7209748 Network communication system using a single reservation request over one or more assigned frequencies to identify a node  
A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the...
7200406 Network communication system using a single reservation request made from a node to transmit its data  
A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the...
7142846 Method and apparatus for improved paging receiver and system  
A processor extracts a numeral string from a pager message which has been received via a pager antenna and a pager-signal receiving unit, and retrieves a telephone number including that numeral...
7031716 Network communication system using assigned timeslots for nodes to request a bandwidth amount for data transmission with a resulting grant for the node to transmit  
A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the...
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...
7019618 Wireless communications systems, radio frequency identification devices, wireless communications methods, and radio frequency identification device communications methods  
Wireless communications systems, radio frequency identification devices, wireless communications methods, and radio frequency identification device communications methods are described. In one...
6937582 Method and an arrangement relating to mobile radio systems with the possibility of switching channel coding schemes  
The present invention relates to a mobile radio system in which channel coding on the radio link is changed during an ongoing connection. The invention can be related in particular to the packet...
EP0815654B1 MESSAGING SYSTEM AND METHOD HAVING ROAMING CAPABILITY  
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...
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...
6571111 Method and apparatus for reducing battery power consumption of transceivers in a communications network using an external generated timing signal  
In a compunctions network of low power devices, power consumption of the devices is reduced by periodically receiving a timing signal in each device from a transmitter external to the network. A...
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...
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...
6282406 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...
EP1034669A1 Title is not available  
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...
6064662 System and method for optimizing spectral efficiency using time-frequency-code slicing  
A system and method for optimizing usage of a communications transmission medium. The transmission medium may be sliced into time and frequency domains so as to create time-frequency slices for...
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...
6047164 Method for controlling the signals of an ERMES pager  
A RF-signal controlling method applied for controlling the operation of a pager in an ERMES system is disclosed. By such a method, the pagers can establish a synchronization link with the base...
6018528 System and method for optimizing spectral efficiency using time-frequency-code slicing  
A system and method for optimizing usage of a communications transmission medium. The transmission medium may be sliced into time and frequency domains so as to create time-frequency slices for...
5983112 Frequency, time and power level diversity system for digital radio telephony  
Multiple diversity used in a fading or shadowed error prone, framed, random access channel enhances the probability of successful transmission and reduces delays. This is important, for example, in...
EP0561891B1 TDM COMMUNICATION SYSTEM FOR A WIDE AREA SITE AND A PLURALITY OF LOCAL SITES  
Abstract not available for EP0561891 Abstract of corresponding document: US5193091 A time division multiplexed system is disclosed in which communication messages among a wide area site and a...
5886645 Method and apparatus for providing duplicate messages in an acknowledge-back communication system  
A communication system (100) for providing information includes transceivers (110) for receiving the information and acknowledging reception of the information and a terminal (105) for transmitting...
5877702 Remote control system, start bit for biphase encoding scheme  
Remote control system for transmitting messages whose length is adapted to the nature of the operating command and to the quantity of information to be transmitted. Each message is provided with an...
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...
EP0497789B1 GLOBAL SATELLITE COMMUNICATION SYSTEM WITH GEOGRAPHIC PROTOCOL CONVERSION  
Abstract not available for EP0497789 Abstract of corresponding document: US5008952 A satellite paging system is described for providing geogrpahic protocol conversion for data packet delivery to...
5835023 Selective radio paging system and pager  
In a mobile radio communication system wherein, in order to call a receiver from a base station, a paging signal containing address information corresponding to the receiver to be called is...
5736934 Radio paging system  
In a mobile radio communication system wherein mobile units are paged by repeatedly transmitting the same paging signal in n paging signal frames, the number of times a paging signal has been...
5710546 Apparatus for encoding and decoding a digital radio signal  
A radio communication system (100) includes a system controller (102) for encoding data information to generate data messages which have periodic error protection at one or more burst error...
5701592 Method and system for desynchronizing overhead messages in a radiocommunication system  
A method and system for controlling overhead information transmission in a radicommunication system is described. By desynchronizing information trasmitted in two streams on a control channel,...
5689807 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...
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...
EP0514470B1 MULTIPLE FREQUENCY SCANNING IN A SELECTIVE CALL COMMUNICATION SYSTEM  
Abstract not available for EP0514470 Abstract of corresponding document: WO9110300 An improved frequency scanning communications system (108, 109, 110, 111, 112) that dynamically optimizes the...
5659298 Method and apparatus for delivering messages in a communication system  
A satellite communication system for delivering simplex messages to subscribers comprises multiple Message Origination Controllers (MOCs), one or more Message Termination Controllers (MTCs),...
5627830 Method and apparatus for transmitting information for multiple independent users in a communication system  
An RF cellular communication system employing offset frame synchronization between cells, any cell being omni-directional or directional, such that a frame at one cell is offset by an integral...
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...
5610919 Network identification information placement architecture for messaging system having roaming capability  
Network roaming information (NRI), which comprises identifies a network (200) and a service area (210) within the network (200), a receiver address, is transmitted in a network (200) during a...
Matches 1 - 50 out of 76 1 2 >