Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 17 - Monitoring; Testing
Patents for H04B 17 - Monitoring; Testing (29,423)
04/2003
04/23/2003CN1413038A Radio frequency equipment for monitoring transponder
04/23/2003CN1412961A Warning circuit for losing real time detection signal and its implement method
04/23/2003CN1106726C Mobile radio apparatus and process for determining receiving field intensity
04/17/2003WO2003032537A1 Method and device for testing a radio signal transmission system
04/17/2003WO2003032003A2 Use of received signal strength indicator (rssi) and global positionong system (gps) to reduce power consumption in mobile station
04/17/2003WO2002088760A3 Method and system for measuring the energy of a signal
04/17/2003US20030073407 Response calibration scheme using frequency-shifted stimulus signals
04/17/2003US20030072392 System and method for an in-service decision-directed signal to noise ratio estimator
04/17/2003US20030072288 Collision mitigation methods used in a communication system
04/17/2003US20030072064 Supervisory controlling method and supervisory controlling system of optical repeater
04/16/2003EP1303064A2 System and method for in-service decision-directed signal to noise ratio estimation
04/16/2003EP1303057A2 Quadrature receiver for spread spectrum signals
04/16/2003EP1302015A1 A method of and a device for generating a signal having a predetermined quality criterion for use in or on a communication system
04/16/2003CN2545760Y Handheld digital airborne VHF station emitting tester
04/16/2003CN1411234A Telecommunication equipment alarming centralized monitoring system
04/16/2003CN1411184A Realizing method of downgoing line stopping interval control
04/16/2003CN1411174A Testng method of communication protocol base convergence and system
04/16/2003CN1411173A Universal testing method for broad band product interface single board
04/16/2003CN1411172A Method using electronic mail to realize remote data acquisition and monitoring and system thereof
04/15/2003US6549880 Reliability of electrical distribution networks
04/15/2003US6549757 Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signal
04/15/2003US6549570 Apparatus for line state analysis in a telecommunications system
04/15/2003CA2273377C Method and apparatus for channel estimation for multicarrier systems
04/10/2003WO2003030577A1 Communication system with detection of extra-system interference
04/10/2003WO2003030416A1 Portable device used to measure passive intermodulation in radio frequency communication systems
04/10/2003WO2003030415A1 Improved testing of soc
04/10/2003US20030068989 RF loopback test apparatus for data radio transceiver
04/10/2003US20030067869 Integrated RF loopback test apparatus for redundant data radio transceiver system
04/09/2003EP1300974A1 Multiplexed signal quality display, method, and program, and recorded medium where the program is recorded
04/09/2003EP1299929A2 Self-diagnosing transmission system
04/09/2003EP0721700B1 Measurement of gain error in a base station receiver, and improvement in field strength measurement
04/09/2003CN1409908A Mobile equipment based filting for packet radio service applications
04/09/2003CN1409551A Peripheral device of portable audio-visual device and broadcast audio-visual system
04/09/2003CN1409502A Method for detecting production line of communication product single board with CPU
04/09/2003CN1105464C Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor
04/08/2003US6546234 Apparatus and method for compensating received signal strength indicator according to temperature
04/03/2003WO2003028248A1 Calibration of a radio communications system
04/03/2003WO2001069697A3 Continuity testing in communication networks
04/03/2003US20030066006 ECC code mechanism to detect wire stuck-at faults
04/03/2003US20030064683 On board testing unit for multi-beam satellite and method of testing a satellite
04/03/2003US20030064680 Apparatus and method for receiving transmit wave
04/02/2003EP1298949A1 Communication system with detection of extra-system interference
04/02/2003EP1297646A1 In-service measurement of perceived speech quality by measuring objective error parameters
04/02/2003EP1297640A2 Method and device for evaluation of a radio signal
04/02/2003EP1228393B1 Device for controlling an optical signal modulation frequency, and in particular for controlling microwave or millimetric modulation frequency
04/02/2003CN2543285Y Real-time monitoring device for information transmission line
04/02/2003CN1408152A Method and apparatus for testing wireless communication channels
04/02/2003CN1407744A Digital signal detecting method
04/02/2003CN1104780C Estimator of direction of desired signal
04/01/2003US6542745 Method of estimating the speed of relative movement of a transmitter and a receiver, in communication with one another, of a telecommunication system
04/01/2003US6542737 Method for checking speech channel of base station and vocoder of control station in mobile communication system
04/01/2003US6542538 Method and apparatus for testing wireless communication channels
04/01/2003US6542112 Interference cancellation in antenna test
03/2003
03/27/2003WO2003026260A1 Process, arrangement, devices for seizure of a shared telephone line
03/27/2003WO2003026242A1 A digital implementation of multi-channel demodulators
03/27/2003WO2003026191A1 Frame error rate estimation in a receiver
03/27/2003WO2003001701A3 System and method for power control calibration in a wireless communication device
03/27/2003US20030060193 Apparatus, method and program for communication test, and recorded medium on which that program has been recorded
03/27/2003US20030060175 Radio station and radio system
03/27/2003US20030060166 Radio station
03/27/2003US20030060165 Multi-carrier communication apparatus
03/27/2003US20030059197 Peripheral for portable viewing apparatus and broadcasting viewing system
03/27/2003US20030057963 Method of and an arrangement for characterizing non-linear behavior of RF and microwave devices in a near matched environment
03/27/2003US20030057937 Testing of SOC
03/26/2003EP1296465A1 Calibration system for array antenna receiving apparatus
03/26/2003EP1296149A1 Characterizing non-linear behavior
03/26/2003EP1295417A1 A method and arrangement relating to transceivers
03/26/2003EP1295149A2 Passive coherent location system and method
03/26/2003EP1013014B1 Test method for a mobile receiver
03/26/2003CN1406080A Method for setting radio covering picture
03/26/2003CN1406012A Pseudo-random series producing method for use in Markov paging test
03/25/2003US6539235 Channel leakage power monitor apparatus and method
03/25/2003US6539222 Method and apparatus for determining disturbed and/or occupied frequency channels in a mobile communication system
03/25/2003US6539214 Method of estimating the signal to noise ratio of a digital signal received by a radiocommunications receiver
03/25/2003CA2330876C Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
03/20/2003WO2003024001A1 Interference wave power measurement apparatus, transmission power control apparatus, and method
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030056196 Apparatus and method for cross development via wireless communication
03/20/2003US20030056158 Frame error rate estimation in a receiver
03/20/2003US20030055609 QSD apparatus and method for recovery of transient response obscured by superposition
03/20/2003US20030055604 System and method for measuring and monitoring wireless network performance in campus and indoor environments
03/20/2003US20030054847 Apparatus and method for transmitting and receiving forward channel quality information in a mobile communication system
03/20/2003US20030053412 OFDM receiving method and apparatus
03/19/2003EP1294154A2 OFDM receiving method and apparatus
03/19/2003CN1404668A Apparatus and method for measuring propagation delay in an NB-TDD CDMA mobile communication system
03/19/2003CN1404660A Modified filtering for asynchronous inputs
03/19/2003CN1404309A Burst signal detecting and AGC method for orthogonal frequency division multiplexing system
03/19/2003CN1404239A System and method for simulating aser interference in expanded spectral communication network
03/18/2003US6535733 Measurement radio system for producing operating information for traffic radios
03/18/2003US6535546 Method and apparatus for determining characteristics of components of a communication channel under load
03/18/2003US6534966 Methods and apparatus for power measuring receiver
03/13/2003US20030051080 Radio frequency local area network
03/13/2003US20030050089 Mobile station having indoor/outdoor mode shifting function
03/13/2003US20030050057 Method of determining electric field state of mobile station also in view of electric field state of uplink
03/13/2003US20030050021 Noise reduction in a stereo receiver comprising an expander
03/13/2003US20030050020 System and method for emulating a multiple input, multiple output transmission channel
03/13/2003US20030050016 Periodic calibration on a communications channel
03/13/2003US20030050015 Automated signal measurement in a satellite communication system
03/13/2003US20030050014 Measurement of wideband signals
03/13/2003US20030048099 Modulation semiconductor integrated circuit device and testing method for oscillation circuit
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