Patents
Patents for H04B 17 - Monitoring; Testing (29,423)
03/2000
03/14/2000US6037868 Alarm method and apparatus for a mobile communication repeating system
03/14/2000CA2282115A1 Radio wave receiver performing reception and demodulation of communication waves through software processing
03/09/2000WO2000013348A1 Method and device for measuring the transmission quality of a transmission channel
03/08/2000EP0984645A2 Measurement system for gathering operational information about cellular radio channels
03/08/2000EP0984577A2 A code sequence generator apparatus for a CDMA modem
03/08/2000EP0983701A2 Method and system for avoiding communication failure in cdma systems
03/08/2000CN1246995A Adaptive method for channel assignement in cellular communication system
03/07/2000US6035209 Method and apparatus for performing fast power control in a mobile communication system
03/07/2000US6035046 Recorded conversation method for evaluating the performance of speakerphones
03/02/2000WO2000011805A1 Method for simultaneously measuring the propagating characteristics of a plurality of radioelectric channels
03/02/2000WO2000011792A1 Method and apparatus for the operational analysis of a wireless communication system
03/02/2000WO2000011485A1 Test device for testing a module for a data carrier intended for contactless communication
03/02/2000DE19838544A1 Transmission path attenuation characteristics measuring method uses processor controlling synchronized switching matrix for measuring transmitter and receiver connected to opposite ends of transmission path
03/01/2000EP0982855A1 Method and device for the spectral analysis of signals transmitted by a radio communication system
03/01/2000EP0681762A4 Wireless personal local area network
03/01/2000CN1246004A Frequency control method in CDMA communication system
02/2000
02/29/2000US6032026 Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system
02/29/2000US6031831 Method for reverse channel sounding in a communications system
02/29/2000CA2278818A1 Measurement radio system for producing operating information for traffic radios
02/27/2000CA2280432A1 Process for rejecting a part of a signal transmitted at a given frequency, and circuit for its implementation
02/24/2000WO2000010312A1 Determination of the operability of a radio channel
02/24/2000WO2000010261A2 Changing a faulty radio channel
02/24/2000WO1999067894A3 Two-way wireless communication between a group of devices
02/24/2000WO1999065157A3 Pilot strength measurement and multipath delay searcher for cdma receiver
02/24/2000DE19836576A1 Radio channel change method especially for mobile radio system
02/22/2000US6028894 SIR or SNR measurement apparatus
02/22/2000US6028884 Method and apparatus for measuring nonlinear effects in a communication system
02/22/2000US6028845 Communication-line-quality measuring system using a conventional signal frame structure
02/22/2000CA2161257C Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
02/17/2000WO2000008781A1 Measuring level and phase of burst transmission
02/17/2000WO2000008777A1 Radio device and method of calibration thereof
02/17/2000DE19836575A1 Radio channel utilization determination, especially in mobile communications system
02/16/2000CN1049543C Method and apparatus for correcting a radio signal strength information signal
02/10/2000WO2000007308A1 Testing in an rf communication system
02/10/2000WO2000007302A1 Interference detection and avoidance technique
02/10/2000DE19861108A1 Ermittlung der Dienstgüte von Telekommunikationsdiensten Determining the quality of service of telecommunications services
02/09/2000CN1244329A Method and device for estimating path loss in radio communication system
02/08/2000US6023147 Hand held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation
02/08/2000CA2203966C Active phased array adjustment using transmit amplitude adjustment range measurements
02/08/2000CA2163937C Method for channel scanning
02/03/2000WO2000005823A1 Network amplifier monitoring circuit
02/02/2000EP0977384A1 Method and apparatus for measuring spectral energy of mobile handset
02/02/2000EP0977302A2 Method for alignment of antennas on decentralised devices with a wireless connected central device
02/02/2000EP0977044A1 Mastless antenna test device
02/02/2000EP0976275A2 Method for determining speed of terminal, and receiver
02/02/2000EP0976216A1 Frame-error detection method and device for error masking, specially in gsm transmissions
02/01/2000US6021268 Method and apparatus for modeling receiver bandwidth for telecommunications analysis
02/01/2000US6021159 Circuit for measuring transmission quality of demodulated digital signal transmitted under carrier modulation transmission system
02/01/2000US6020716 Engine starting apparatus
02/01/2000CA2127672C Mobile radio system
02/01/2000CA2003788C Fiber optic link noise measurement and optimization system
01/2000
01/31/2000CA2258826A1 Device for and method of detecting interference waves
01/27/2000WO2000004659A2 Radio communications unit
01/27/2000WO2000004658A1 Interference prevention in a radio communications system
01/27/2000WO2000004399A2 Device for measuring the specific absorption rate
01/27/2000WO1999066667A3 System and method of quantifying the degree of balance between the forward link and the reverse link
01/27/2000WO1999063764A3 Method and system for testing data channel functionality in a radio apparatus
01/27/2000WO1999059254A3 Device and method for a mobile station for receiving signals transmitted from a base station
01/27/2000CA2300303A1 Apparatus for measuring the specific absorption rate
01/26/2000EP0975098A2 Frequency control method in a cdma communication system for preventing deterioration in communication quality despite failure of transmission power control in a mobile station
01/26/2000CN1242889A Cellular radio system and method for measuring interference level
01/26/2000CN1242680A Telecommunicator testing apparatus and method of operation therefor
01/25/2000US6018773 Method and apparatus for transferring information to a plurality of offices in series in a network
01/25/2000US6018659 Airborne broadband communication network
01/25/2000US6018646 Power consumption monitor and alarm for a mobile means of communication
01/25/2000US6018645 Method of changing the supervisor program installed in a receiver station for receiving a radio beam, a corresponding receiver station, and a corresponding radio data-transmission system
01/25/2000US6018406 Optical repeater and optical transmission system
01/25/2000CA2174912C Transmission diversity system
01/20/2000WO2000003504A1 Method and device for executing control and monitoring measurements in optical transmission paths
01/20/2000WO2000003503A1 Optical subscriber access network
01/20/2000WO2000003456A1 Adaptive array antenna
01/20/2000DE19927266A1 Receiver for digital audio broadcast signals, controls tuning unit to receive signal as long as frequency is tuned in and error rate is below threshold
01/20/2000DE19836162A1 Verfahren zum Betreiben einer Funkmeßeinrichtung und Vorrichtung dafür Method for operating an apparatus therefor and Funkmeßeinrichtung
01/20/2000DE19830729A1 Verfahren und Anordnung zur Durchführung von Kontroll- und Überwachungsmessungen an optischen Übertragungsstrecken Method and apparatus for performing control and monitoring measurements on optical transmission links
01/19/2000EP0973283A1 Probing apparatus and method for a spread-spectrum communications system
01/19/2000EP0972364A1 Power detection circuit
01/19/2000EP0972353A1 Tuning method and transceiver unit
01/19/2000CN1242126A Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor
01/19/2000CN1241885A Apparatus and method for determining location of interference source and for measuring interference signal emitted therefrom
01/18/2000US6016519 Data communication system, data communication device and memory medium, for storing data communication program
01/18/2000US6016430 Radio communication system and method for avoiding control channel interference
01/13/2000DE19830734A1 Optisches Teilnehmeranschlußnetz The optical subscriber access network
01/06/2000WO1999057932A3 Method of measuring signal timing, and radio system
01/06/2000WO1999054960A3 Phased array antenna calibration system and method using array clusters
01/06/2000WO1999049581A3 Am quality detector
01/05/2000EP0969682A1 Air interface adaptation method in a mobile radio communication system, base station, mobile station and transmission mode therefor
01/05/2000CN1240546A Method and apparatus for estimating field strength
01/05/2000CN1240325A Electric field detecting method
01/04/2000US6011963 Received signal strength detecting circuit
01/04/2000US6011962 Circuit for testing the function of mobile receiving installations
01/04/2000US6011957 Polarity change box for radio transmitter receiver
01/04/2000US6011830 Operational test device and method of performing an operational test for a system under test
12/1999
12/29/1999WO1999067894A2 Two-way wireless communication between a group of devices
12/29/1999EP0967818A2 Measurement method
12/29/1999EP0967744A1 Method and apparatus for determining characteristics of components of a communication channel under load
12/29/1999EP0967739A1 Measurement of cellular environment in idle mode and transmission to central at beginning of call
12/29/1999CN1240098A Communications system and method for testing of communications apparatus
12/29/1999CN1240097A Communications system and method for testing of communications apparatus
12/29/1999CN1240085A Voice path testing in telecommunications system
12/28/1999US6009335 Method of calibrating and testing spatial nulling antenna