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7236549 Digital switching wireless receiver diversity and buffer diversity for enhanced reception in a wireless digital audio communication system  
A diversity receiver system applying diversity to improve reception of coded data in presence of fading of the broadcast signal. The communication system includes a diversity receiver system...
RE39454 Transfer of messages in a multiplexed system  
A method and apparatus for transmitting variable length messages on a network in fixed length slots including the provision of a source identifier field in the header of each slot, the source...
RE39427 Cellular telephone data communication system and method  
The cellular telephone data communication system and method involves the use of a mobile data processing interface and a cooperating static data processing interface to effectively transmit data...
6856257 Data collection and metering system  
Methods and apparatus implementing and using techniques for data collection, including using a plurality of telemetry devices to generate and transmit a series of measurements and transmit the...
6804529 Trunked radio repeater communication system including home channel aliasing and call grouping  
A system for channel assignment in a trunked transmission communication system including a plurality of subscribers. A plurality of subscribers is provided home channel assignment to reduce...
6636496 Packet data communication device and method in mobile communication system  
A method for controlling channel access in a mobile communication system. A base station generates a broadcast channel frame, which includes status information indicating whether channel codes...
6529486 Trunked radio repeater communication system  
A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for...
6492910 Metering system  
A metering system provides a measuring level with multiple meters and a collection level with multiple collectors. Each meter periodically measures a parameter, such as electricity consumption, and...
6374115 Method and apparatus for trunked radio repeater communications with backwards compatibility  
A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for...
RE37494 Transfer of messages in a multiplexed system  
A method and apparatus for transmitting variable length messages on a network in fixed length slots including the provision of a source identifier field in the header of each slot, the source...
6195018 Metering system  
A metering system provides a measuring level with multiple meters and a collection level with multiple collectors. Each meter periodically measures a parameter, such as electricity consumption, and...
6035196 Automatic cell transfer based on reverse channel characteristics  
In a distributed communication system, a mobile initiates a cell transfer or channel top based upon an assessment of measured parameters on the reverse channel. Advantageously, a mobile initiates a...
6009553 Adaptive error correction for a communications link  
A method of data transfer between a transmitter and a receiver over a communications link achieves maximum throughput by dynamically adapting a coding rate, and specifically an error correction...
5960046 Preamble based selection diversity in a time division multiple access radio system  
A selection diversity system and method for use in a TDMA (time division multiple access) radio system, particularly suited for DECT (Digital Enhanced Cordless Telephone) applications, in which a...
5848072 Method of and apparatus for communicating messages  
A data-transmission system (100) including a master device (101) and at least one slave device (105) communicates messages having an address (1503, 1505) and data (1100) from the slave device (105)...
5815799 Priority system for a wide area transmission trunked communication system  
A method and apparatus for providing priority access for users in a transmission trunked communication system, including a plurality of distributive radio network terminal (RNT) switches and a...
5801783 Remote accurate frequency generation using a numerically controlled oscillator  
Within a communication system, driving a numerically controlled oscillator with a frequency of a precision frequency oscillator and adjusting the frequency of the numerically controlled oscillator...
5710978 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...
5701583 Land-based wireless communications system having a scanned directional antenna  
A radio communication system is disclosed which comprises a base station for transmitting and receiving signals to and from one or more remote stations. The base station is provided with at least...
5701297 Data over cellular  
There is provided a mechanism for providing data services over a wireless cellular network. It comprises: establishing communications over the cellular network; upon a subscriber designating that...
5652766 Data transmitting and receiving method and apparatus thereof  
A two-way transmitting apparatus which transmits display data and audio signal from an audio reproducing device to a remote controller and headphones with display by wireless transmitting, and...
EP0308449B1 TRANSFER OF MESSAGES IN A MULTIPLEXED SYSTEM  
Abstract not available for EP0308449 Abstract of corresponding document: US5050166 PCT No. PCT/AU88/00075 Sec. 371 Date Apr. 28, 1989 Sec. 102(e) Date Apr. 28, 1989 PCT Filed Mar. 17, 1988 PCT...
5627829 Method for reducing unnecessary traffic over a computer network  
Standard protocols, such as those commonly used on LAN networks, are used to connect nodes to an enterprise network via a wide area wireless network. Within the appropriate protocol stacks, the...
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...
5613196 Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system  
A land mobile transmission trunked communication system is provided with a unique switching protocol arrangement among repeaters that are networked to one or more external communication networks....
5559795 Method in a TDMA radiosystem to let a central station communicate with both peripheral stations and other central stations  
Method in a digital wide area system operating in time division and comprising two or several subsystems, each of which comprises at least one central station (CS) and one or several peripheral...
5533028 Communications subsystem between base stations and base station controllers in burst communications systems  
A communications subsystem between base stations and base station controllers in burst communications system of the type that links a set of base stations (2) with a base station controller (1) by...
5488737 Land-based wireless communications system having a scanned directional antenna  
A radio communication system is disclosed which comprises a base station for transmitting and receiving signals to and from one or more remote stations. The base station is provided with at least...
5465386 Signaling protocol for a distributive wide area transmission trunked communication system  
A land mobile transmission trunked communication system is provided with an enhanced control signal protocol. The land mobile transmission trunked communication system includes a plurality of...
5440759 Modular networking switch system for a distributive wide area transmission trunked communication system  
A modular networking switch system for a land mobile transmission trunked communication system provides transmission trunked communications with a plurality of transceivers and networks the...
EP0418865B1 Wireless signal transmission system with random access  
Abstract of EP0418865 A central station generates and transmitted data of a transmission format. The transmission format includes an I/B bit (37) indicating permission or inhibition of a new...
EP0364447B1 IMPROVED SIGNALLING METHOD FOR ESTABLISHING TRUNKED COMMUNICATION  
Abstract not available for EP0364447 Abstract of corresponding document: US4723264 A trunked communication signalling method is provided by a unifying signalling protocol in which subscribers...
5396539 Cellular data overlay system for storing data identifying selected data allocated channels  
A cellular telephone system includes a packet-switched digital data communication subsystem overlaying a circuit-switched (e.g., voice) communication subsystem, with voice and data services sharing...
5390197 Vestigial identification for co-channel interference in cellular communications  
A vestigial identification system is provided for transmitting information in a cellular communications network employing frequency reuse. The vestigial identification system enables a receiver to...
5388102 Arrangement for synchronizing a plurality of base stations  
In a wireless telecommunications system (FIG. 1), over-the-air operations of a plurality of base stations (11 ) are synchronized via a synchronization signal that is embedded in the normal...
5335228 Synchronization related to data streams  
A remote terminal for a subscriber loop carrier network operates by flow from one to another of units in the terminal of time division multiplexer data streams of binary valued digital bits. Each...
5313461 Method and device in a digital communication network  
A system and method for connecting two or more peripheral stations to a central station over a common service resource. Each station is connected to one or more switching units; the common service...
5293644 Secondary ID usage in a subfleet call  
A communications system provides subfleet calls for both voice and data communications using a secondary identification (301, 303, 305, 307, 309) incorporating a plurality of subfleets in a...
5239545 Channel access control in a communication system  
A CM (105) receives requests for data transfer from a series of UMs (101-103) and from an EM (104). The requests contain the UM (101-103) or EM (104) address and the size of the data packet to be...
5227775 Method and arrangement for channel monitor and control  
A method and means for controlling transmissions among a plurality of communication units is described that determines an inhibit state based upon an inhibit signal and information in a header...
5224108 Method and apparatus for call control signaling  
To perform call control signaling between a user and a telecommunications switching network (and end-to-end between users), a portion of the multiplex overhead of a multiplexed data stream is...
5210751 Signal transmission system capable of performing re-transmission control in units of slots  
In a message-transmitting station, a signal to be transferred is divided into a plurality of time slots, an error correcting/detecting code is added to each time slot, and a re-transmission...
5179576 Digital audio broadcasting system  
Broadcasting system digitizes audio input signals before RF modulating and transmitting over airwaves to one or more remote receiving stations. Receiving station recovers the digitized signal by...
5159701 Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system  
A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio...
5115233 Shared data/voice communication system with programmable data priority  
A shared data/voice communication system wherein data traffic may be guaranteed priority at a set, but programmable, level of system capacity and wherein interference between such data and voice...
5077030 Method of and means for producing power and cooling in manufacturing of ammonia and related products  
Modifications are made to the standard process for the manufacture of ammonia and related compounds, resulting in lower operating costs through reduced total energy consumption. In one aspect of...
5050166 Transfer of messages in a multiplexed system  
A method and apparatus for transmitting variable length messages on a network in fixed length slots including the provision of a source identifier field in the header of each slot, the source...
5048062 Transmitting commands over a serial link  
An apparatus and method for transmitting commands over a serial link having a switch intermediate a channel and a control unit wherein continuous sequences of idle characters (K.28.5) are sent over...
5014344 Method for synchronizing the transmissions in a simulcast transmission system  
A method for synchronizing message transmissions in a simulcast transmitter system is described. A master controller couples to a plurality of regional controllers for enabling message...
EP0418865A2 Wireless signal transmission system with random access.  
A central station generates and transmitted data of a transmission format. The transmission format includes an I/B bit (37) indicating permission or inhibition of a new transmission of a next...
Matches 1 - 50 out of 59 1 2 >