Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 7 - Radio transmission systems, i.e. using radiation field
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
04/1999
04/14/1999EP0909041A2 Resource reservation for packet-switched multiplepath communication system
04/14/1999EP0908067A2 Method and apparatus for efficient system access in a dispatch system
04/14/1999EP0908066A2 Method and apparatus for monitoring link activity to prevent system deadlock in a dispatch system
04/14/1999EP0908064A2 Wireless communications system and switching exchange with multiple orientaiton antennas
04/14/1999EP0908062A2 Process for separating and characterising spoken announcements in a radio transmission
04/14/1999EP0908026A1 Method of establishing a radio link
04/14/1999EP0908025A1 Methods for generating side information in the presence of time-selective fading
04/14/1999EP0908024A1 Packet-switched spread-spectrum system
04/14/1999EP0908023A1 Communication protocol for spread spectrum wireless communication system
04/14/1999EP0908022A2 Method and apparatus for precision geolocation
04/14/1999EP0908021A2 A method of controlling initial power ramp-up in cdma systems by using short codes
04/14/1999EP0908008A1 Efficient multichannel filtering for cdma modems
04/14/1999EP0907950A1 Encoding mode control method and decoding mode determining apparatus
04/14/1999EP0806097B1 Communications system and a method therefor
04/14/1999EP0804858A4 Spectrally efficient high capacity wireless communication systems
04/14/1999EP0775391A4 Spectrally efficient and high capacity acknowledgment radio paging system
04/14/1999EP0740888B1 A method for controlling a subscriber station in a mobile radio system
04/14/1999CN1214178A Cordless time-duplex phone with improved hearing-aid compatible mode
04/14/1999CN1214161A Docking and electrical interface for personal use communication devices
04/14/1999CN1214151A Antenna for frequences in excess of 200 MHZ
04/14/1999CN1213945A Base radio station research device
04/14/1999CN1213942A Semi-soft handoff method that uses multiple common frequency
04/14/1999CN1213941A Method for selecting functions in radio paging receiver
04/14/1999CN1213939A Method for displaying message in radio paging receiver
04/14/1999CN1213938A Method for automatically changing service area of wide area pager in second generation digital cordless telephone
04/14/1999CN1213912A Rake receiver and spread spectrum radio telecommunication apparatus having the rake receiver
04/14/1999CN1213909A Method of calibrating receive and/or transmit systems driving array of active antennas, and corresponding mobile station
04/14/1999CN1213908A Method, and system, and base station, and mobile station
04/14/1999CN1213906A Signal wave shape equalizing device
04/14/1999CN1043001C Transcoder and improved land system for mobile radio communication system
04/14/1999CN1042998C Transmission power control method of spread-spectrum communication system, and spread-spectrum communication system employing control method
04/14/1999CA2249866A1 Method for admitting new connections based on measured quantities in a multiple access system for communications networks
04/14/1999CA2249839A1 Point-to-point protocol encapsulation in ethernet frame
04/14/1999CA2249838A1 In sequence delivery of messages
04/14/1999CA2249818A1 Method for access control in a multiple access system for communications networks
04/13/1999US5894598 Radio communication system using portable mobile terminal
04/13/1999US5894596 Method and apparatus for establishing activation date for a cellular telephone
04/13/1999US5894594 Voice announcement broadcasting technique for base station of CT-2 cordless telephone
04/13/1999US5894590 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof
04/13/1999US5894500 Method and apparatus for canceling signals in a spread-spectrum communication system
04/13/1999US5894499 Direct conversion receiver having filter with cut-off frequency switching means
04/13/1999US5894496 Method and apparatus for detecting and compensating for undesired phase shift in a radio transceiver
04/13/1999US5894473 Multiple access communications system and method using code and time division
04/13/1999CA2130663C Apparatus and method for reducing power consumption in a mobile communications receiver
04/13/1999CA2129539C Frequency tuning for satellite ground stations
04/13/1999CA2128386C Communication technique employing variable information transmission
04/13/1999CA2107816C Device for estimating a transmission channel
04/13/1999CA2095717C Phase combining method and apparatus for use in a diversity receiver
04/13/1999CA2015932C Mobile communications system
04/08/1999WO1999017576A1 Method and apparatus for optimizing antenna tilt
04/08/1999WO1999017563A2 Method and apparatus for increasing data rate by reduction of training data
04/08/1999WO1999017557A1 Method for determining the quality of a video and/or television image signal
04/08/1999WO1999017556A1 Method for assessing the quality of a television image
04/08/1999WO1999017503A1 Method and apparatus for facilitating establishment of communications in a messaging system
04/08/1999WO1999017499A2 Legal interception in a telecommunications network
04/08/1999WO1999017497A2 Gprs-subscriber selection of multiple internet service providers
04/08/1999WO1999017482A2 Channel allocation methods in a communication network and corresponding system
04/08/1999WO1999017481A1 Method and apparatus for correcting a measured round-trip delay time in a wireless communication system
04/08/1999WO1999017476A2 Method of adjusting frequency of cellular radio repeater
04/08/1999WO1999017470A1 A broadcast control channel structure for wideband tdma
04/08/1999WO1999017469A1 Mobile communication system
04/08/1999WO1999017468A1 Method and communication system for wireless tdma information transfer between base stations and mobile stations with randomly controlled selection of uplink channels
04/08/1999WO1999017467A1 Polarization enhanced cdma communication system
04/08/1999WO1999017466A1 Using multiple antennas to mitigate specular reflection
04/08/1999WO1999017465A2 Method for improving radio connection quality in radio system
04/08/1999WO1999017464A1 Method for selecting a receiver among a plurality of receivers in a diversity reception installation
04/08/1999WO1999017463A2 Received signal strength determination method, apparatus and computer program products
04/08/1999WO1999017462A1 Method for managing power supply to a cellular radiotelephone station
04/08/1999WO1999017416A1 Telephone equipment with rechargeable battery and detection of type of charger used
04/08/1999WO1999005880A3 Method and radio communication system for transmitting information via atm cells
04/08/1999WO1999005584A3 Internet caching system
04/08/1999WO1999004521A3 A method and apparatus for segmentation and reassembly of packets/cells over satellite/wireless networks
04/08/1999WO1999004519A3 Combined array processing and space-time coding
04/08/1999WO1999004511A3 Cellular system traffic allocation and dynamic load balancing
04/08/1999WO1999004339A3 Method and apparatus for improving asynchronous transfer mode operation over noisy, high speed wireless links
04/08/1999WO1998054844A8 Centralized channel selection in a distributed rf antenna system
04/08/1999DE19743125A1 Verfahren zur Bewertung der Qualität eines Fernsehbildes Method for assessing the quality of a television picture
04/08/1999DE19742123A1 Verfahren zum Verwalten von partitionierten Ressourcen in einem Kommunikationsnetz A method for managing partitioned resources in a communication network
04/08/1999CA2305207A1 Method and apparatus for optimizing antenna tilt
04/08/1999CA2304658A1 Received signal strength determination method, apparatus and computer program products
04/08/1999CA2304649A1 Method and apparatus for correcting a measured round-trip delay time in a wireless communication system
04/08/1999CA2304536A1 A broadcast control channel structure for wideband tdma
04/08/1999CA2303540A1 Using multiple antennas to mitigate specular reflection
04/08/1999CA2248408A1 A time-division radio that is powered by a low-power energy source
04/07/1999EP0907296A1 Communications system, network, portable device and method
04/07/1999EP0907276A1 Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system
04/07/1999EP0907264A2 A method of detecting a flag in a mobile radio system
04/07/1999EP0907263A2 CDMA cellular communication system using frame offset distribution of all base stations to avoid traffic peak
04/07/1999EP0907262A2 Power management method for use in a wireless local area network (LAN)
04/07/1999EP0907261A2 Signal waveform equalizer apparatus
04/07/1999EP0906675A1 Method and apparatus of providing bit count integrity and synchronous data transfer over a channel which does not preserve synchronization
04/07/1999EP0906674A1 Digital communication network
04/07/1999EP0906671A1 Medium access control scheme for data transmission on code division multiple access (cdma) wireless systems
04/07/1999EP0906670A2 Transmitter diversity assembly and associated method for radio transmitter
04/07/1999EP0906669A1 Method and apparatus for data transmission using multiple transmit antennas
04/07/1999EP0702865B1 Selection of a primary satellite
04/07/1999EP0626122B1 Method of measuring adjacent base stations in tdma radio system and tdma radio system
04/07/1999EP0578810B1 Method of dealing with radio link failure
04/07/1999CN1213476A Process and arrangement for executing protocols between telecommunications devices in wireless telecommunications systems
04/07/1999CN1213471A Method and apparatus for antenna realignement in mobile radiotelephone using injected audio signal
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