Matches 1 - 32 out of 32
Match Document Document Title
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...
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...
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...
6356568 Communication method and communication system  
When each of a plurality of repeaters receives emergency data including an emergency command informing the occurrence of an emergency from a node terminal connected to own repeater or the like, it...
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...
EP0506688B1 PACKET HANDLING METHOD  
Abstract not available for EP0506688 Abstract of corresponding document: WO9108630 In this invention a hierarchical addressing technique is employed in a packet communications system to enhance...
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...
5738092 Device for monitoring portable breathing apparatus  
A monitoring device for portable breathing apparatuses having a manometer by means of which the pressure in the pressure container of the breathing apparatus is detected, and having a transmitter...
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....
5548802 Method and apparatus for a remote network switch 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...
5524007 Network interface architecture for a packet switch communication system  
An improved network interface architecture for a packet switch provides for the combination of both voice and data in a single switch using a common packet structure. It allows for the dynamic...
5517505 Synchronization method and apparatus for a wireless packet network  
In a wireless TDMA network a control module (CM) sends a time stamp relative to the beginning of its frame in a synchronization packet allowing each of a plurality of user modules (UM) to maintain...
5517500 Packet handling method  
An improved network interface architecture for a packet switch provides for the combination of both voice and data in a single switch using a common packet structure. It allows for the dynamic...
5495482 Packet transmission system and method utilizing both a data bus and dedicated control lines  
A common communication controller is linked to a plurality of peripheral devices by a network interface bus. Packets containing information is communicated between the controller and the...
5477541 Addressing technique for storing and referencing packet data  
A hierarchical addressing technique is employed in a packet communications system to enhance flexibility in storing and referencing packet information. This method permits packet message data and...
5475681 Wireless in-building telecommunications system for voice and data communications  
An improved network interface architecture for a packet switch provides a mechanism for handling voice and data packets. Bandwidth allocation can be changed because control and data memories are...
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...
5423055 Trunked communication system with automatic repeater talk-around  
A method to implement multiple talk-around communication links using the communication resources of one repeater. A system resource controller determines whether talk-around is possible for any two...
5392771 Underwater monitoring and communication system  
A monitoring device for portable breathing apparatuses having a manometer by means of which the pressure in the pressure container of the breathing apparatus is detected, and having a transmitter...
5341375 Transmission of broadcast packets in an RF system  
Transmission of broadcast packets (46) in a radio frequency (RF) communication system between a control module (22) and user modules (20), wherein the control module (22) and the user modules (20)...
5321696 Broadcasting of packets in an RF system  
An RF communication system contains a control module which communicates with a plurality of user modules that are each connected to at least one user device. The system provides a method for packet...
5305467 Local area network for flexible digital communications within and between RF base stations  
A LAN multi-node generic digital signal communications link within a radio frequency (RF) base station system communicates control signals within and between base stations. The generic digital...
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...
5265093 Hardware interface and protocol for a mobile radio transceiver  
A system and method for communicating control signals between a digital mobile transceiver, a digital control head, and a mobile data terminal over a common serial peripheral bus uses a message...
5212715 Digital communication signalling system  
In frequency-hopping spread-spectrum systems, it is necessary to maintain frequency and bit synchronization (sync) between the transmitter and receiver in order to maintain quality data recovery at...
5144668 Signal overlap detection in a communication system  
In frequency-hopping spread-spectrum systems, it is necessary to maintain frequency and bit synchronization (sync) between the transmitter and receiver in order to maintain quality data recovery at...
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...
5109543 Hardware interface and protocol for a mobile radio transceiver  
A system and method for communicating control signals between a digital mobile transceiver, a digital control head, and a mobile data terminal over a common serial peripheral bus uses a message...
5030948 Multiple characteristic sensitive addressing schema for a multiple receiver data processing network  
A data transmission network enables address encoded messages to be transmitted via a radio wave type communications medium to multiple receivers, each of which is assigned a multiple byte address...
4831647 Radiotelephone credit card data communications  
Method and apparatus for communicating credit card information read at a mobile radiotelephone unit is disclosed. Data read from a credit card is placed in a variable length error protected format...
4776037 Method and apparatus for providing priority channel scan in a radio  
A priority channel scan for use in radios capable for receiving at least two channels, wherein one of the channels is a priority communications channel. The radio periodically interrupts...
Matches 1 - 32 out of 32