Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 17 - Monitoring; Testing
Patents for H04B 17 - Monitoring; Testing (29,423)
06/1998
06/16/1998US5768260 Device for changing the transmission parameters in a radio transmitter
06/16/1998CA2109576C Method and apparatus for determining signal transmission quality levels of a transmitted signal
06/12/1998CA2222003A1 Satellite controlled power control for personal communication user terminals
06/11/1998WO1998025322A1 Antenna adapter
06/11/1998WO1998016079A3 Method for determining speed of terminal, and receiver
06/10/1998EP0847153A2 Method and apparatus for measuring waveform quality of CDMA signal
06/10/1998EP0846376A1 Method and apparatus for rate determination in a communication system
06/10/1998CN1184399A Dynamic overload control device and method in digital mobile communication system
06/09/1998US5765101 Portable VHF receiver/tape recorder calibrator
06/09/1998US5764686 Enhanced time of arrival method
06/04/1998WO1998024199A2 Method for load control, and radio system
06/04/1998WO1998024198A2 Method of setting load goal, and radio system
06/04/1998DE19648225A1 Interference measure determination method for electromagnetic wave
06/03/1998EP0845915A2 Apparatus for testing base stations and mobile terminals of personal communications systems
06/03/1998EP0845885A2 Modulated signal generation apparatus for a digital communication system incorporating fading simulator
06/03/1998EP0845736A1 Data communication system, data communication device and memory medium, for storing data communication program
06/02/1998US5761250 Iterative filtering frequency estimator and estimation method
06/02/1998US5761245 Method and a system for redundancy control of baseband channels in a telecommunications system
06/02/1998US5761240 Method and apparatus for determining an optical communications channel without loss of channel messages on a current communications channel
05/1998
05/28/1998WO1998023043A1 Transmission line presuming circuit and modem using the same
05/27/1998EP0844492A1 Integrated navigation and communication satellite system
05/27/1998EP0844485A2 Arrangement for measuring condition of antenna in mobile telephone system
05/27/1998CN1183016A Mobile telephone system
05/26/1998US5758277 Transient analysis system for characterizing RF transmitters by analyzing transmitted RF signals
05/26/1998US5758263 Selection of communication channel in a digital cordless telephone
05/20/1998EP0843407A1 Signal detecting circuit
05/20/1998CN1182509A Method and apparatus for estimating a channel parameter in digital radio frequency communication system
05/19/1998US5754949 Transmitter-receiver apparatus
05/19/1998US5754586 Data communication receiver and method therein for detecting poor signal quality
05/19/1998US5754583 Communication device and method for determining finger lock status in a radio receiver
05/19/1998US5754560 Method and apparatus for establishing a test loop for monitoring the operation of a radio station
05/19/1998US5754104 Antenna alarm detection system
05/13/1998EP0841448A1 Method for charging a transponder
05/13/1998EP0840961A1 Self-calibration apparatus and method for communication device
05/12/1998US5752168 Multisensor reception method for a fixed base station of a communications network exchanging data with mobile stations and device for its implementation
05/12/1998US5752165 Method and apparatus for comparing averages of signal levels of receivers of receiver unit for automatically providing indication of a defective receiver
05/12/1998US5752164 Autonomous remote measurement unit for a personal communications service system
05/12/1998US5752159 Method for automatically collecting and delivering application event data in an interactive network
05/12/1998US5751767 Channel quality monitoring by detecting, based on a fading pitch detected in an RSSI, a BER in an accumulated phase likelihood datum
05/12/1998US5751766 Non-invasive digital communications test system
05/07/1998WO1998019476A1 Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor
05/07/1998WO1998019360A1 Calibration method and arrangement
05/07/1998DE19647744A1 Test for reception channel of contactless transmission system
05/06/1998EP0840533A2 A method and system for communicating with remote units in a communication system
05/06/1998EP0670090A4 Method and apparatus for power estimation in a communication system.
05/06/1998CN1180963A Estimator of direction of desired signal
05/06/1998CA2220200A1 Method for charging a transponder
05/05/1998US5748687 Spreading code sequence acquisition system and method that allows fast acquisition in code division multiple access (CDMA) systems
05/05/1998US5747786 Communication module for a data capture system
04/1998
04/30/1998WO1998018272A1 Spectrally efficient high capacity wireless communication systems with spatio-temporal processing
04/30/1998WO1998018226A1 Pinpointing interruptions in communication links
04/30/1998WO1998018225A2 A real-time csma method having the capability to adaptively vary cell sizes and a wireless network for implementing the same
04/30/1998WO1998018214A1 Multiple satellite fade attenuation control system
04/30/1998WO1998010543A3 Method and arrangement for forming calibration signal
04/30/1998DE19644686A1 Verfahren zur Kalibrierung sowie Anordnung Methods for the calibration and configuration
04/28/1998US5745370 Electromagnetic field intensity calculating device
04/28/1998CA2147976C Radio link parameter control in wireless personal communications system
04/23/1998WO1998017020A1 An adaptive method for channel assignment in a cellular communication system
04/23/1998WO1998017019A2 Test method for a mobile receiver
04/23/1998DE19708793C1 Traffic load generation method for mobile radio system testing
04/23/1998DE19651274C1 Speech channel test method for telecommunication system
04/22/1998EP0837615A2 Method and apparatus for testing cellular services in a first location from a second location remote from the first location
04/22/1998EP0837569A2 Multiple satellite fade attenuation control system
04/22/1998EP0837568A2 Diversity communication system
04/22/1998EP0837567A2 Airborne broadband communication network
04/22/1998EP0837340A2 Estimator of direction of desired signal
04/22/1998EP0836770A2 Automatic power control system for a code division multiple access (cdma) communications system
04/22/1998CN1179864A Method and apparatus for performing power control in mobile communication system
04/21/1998US5742929 Arrangement for comparing subjective dialogue quality in mobile telephone systems
04/21/1998US5742635 Enhanced time of arrival method
04/21/1998US5742589 Radio apparatus
04/21/1998CA2218668A1 Multiple satellite fade attenuation control system
04/16/1998WO1998016079A2 Method for determining speed of terminal, and receiver
04/16/1998WO1998016026A1 Modem, method and device for indicating received signal strength and presence for intensity modulated binary-coded wireless data packets with reduced recovery time
04/16/1998DE19643578A1 Prüfverfahren für einen mobilen Empfänger Test method for a mobile receiver
04/15/1998EP0835593A2 Code division multiple access (cdma) communication system
04/15/1998EP0835568A2 Cdma modem
04/15/1998EP0835560A1 Method and apparatus for determining signal strength in a spread spectrum communication system having a variable data rate
04/15/1998CN1179249A Establishment of cryptographic keys in radio networks
04/15/1998CN1179248A Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics
04/14/1998US5740530 Method of controlling a device
04/14/1998CA2063666C Optical signal transmission system, particularly optical cable television system, with monitoring and service-channel facilities
04/09/1998WO1998001967A3 Circuit configuration for detection of analogue switching and check signals
04/08/1998EP0835005A2 Optical repeater and optical transmission system
04/08/1998EP0834225A1 Method for setting transmit and receive chains of channels formed by a mobile radio system base station
04/07/1998US5737693 Method and system for generating arbitrary analog waveforms
04/07/1998US5737365 Method and apparatus for determining a received signal quality estimate of a trellis code modulated signal
04/04/1998CA2217263A1 Optical repeater and optical transmission system
04/02/1998WO1998013951A2 Method and apparatus for measuring link quality in a spread spectrum communication system
04/02/1998CA2265833A1 Method and apparatus for measuring link quality in a spread spectrum communication system
03/1998
03/26/1998WO1998012895A1 Transient analysis system for rf transmitters
03/26/1998WO1998012828A1 Telecommunications network management observation and response system
03/25/1998EP0831668A1 Auto-adaptive intercommunication protocol between base stations of a cellular telephone network
03/25/1998CN1037887C Method and arrangement for measuring condition of a base station
03/24/1998US5731993 Nonlinear amplifier operating point determination system and method
03/24/1998US5731869 Optical fiber testing method for measuring connection location and connection loss
03/24/1998US5731699 Apparatus and method for simultaneous measuring of narrow and wideband RF transmission statistics
03/18/1998CN1176719A A method for determining connection quality, and a receiver
03/18/1998CN1176539A Self-testing transceiver
03/12/1998WO1998010543A2 Method and arrangement for forming calibration signal
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