Patents for H04B 17 - Monitoring; Testing (29,423) |
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05/28/1997 | DE19647090A1 Measuring power loss through transmission signal leaking to adjacent channel |
05/27/1997 | US5634206 Method and apparatus for estimating a signal fading characteristic |
05/27/1997 | US5634204 Radio communication apparatus |
05/27/1997 | US5632272 Signal processing apparatus |
05/23/1997 | CA2190223A1 User out-of-range indication for digital wireless systems |
05/21/1997 | EP0774876A2 Cell testing in cellular telecommunication network |
05/21/1997 | CN1150361A Communication apparatus and method for estimating communication connection in multi-node network |
05/20/1997 | US5631963 Circuit arrangement for the recognition of adjacent channel interference |
05/15/1997 | CA2235585A1 Enhanced detection of multiple data transmissions |
05/14/1997 | EP0772947A2 Antenna and feeder cable tester |
05/14/1997 | EP0772916A1 Method and apparatus for estimating a signal fading characteristic |
05/14/1997 | CN1149794A Equipment for measuring signal transmission time of a digit transmission device |
05/13/1997 | US5630219 Reception electric field level detection circuit |
05/13/1997 | US5630218 Radio receiving device for measuring an electric field level of a receiving channel and adjacent channels using common components |
05/13/1997 | US5630210 Method and apparatus for determining signal transmission quality levels of a transmitted signal |
05/13/1997 | US5629957 Method and apparatus for simultaneously displaying distribution patterns of equalized output signals from multiple channels |
05/13/1997 | US5629875 Method and apparatus for interactively tuning frequency hopping transmitter |
05/07/1997 | EP0702868A4 Fading simulator |
05/02/1997 | EP0574380B1 Method of and apparatus for identification of a monitoring signal at a base station in a radio telephone system |
04/29/1997 | US5625889 RF sniffer module and method with a self-test circuit |
04/29/1997 | US5625880 Spectrally efficient and high capacity acknowledgement radio paging system |
04/23/1997 | EP0769888A2 System and method for testing communications devices |
04/22/1997 | US5623496 Apparatus and a method for setting station-identifying information in a station of a communication system |
04/22/1997 | US5623429 Techniques for expeditiously predicting electromagnetic wave propagation |
04/18/1997 | CA2187472A1 System and method for testing communications devices |
04/17/1997 | WO1997014228A1 A method and a circuit of self calibrating and testing qpsk transceivers |
04/17/1997 | DE19532929A1 Error message overload prevention for communications network |
04/16/1997 | EP0767939A1 Method and apparatus for displaying information in a communication system |
04/15/1997 | US5621854 Method and apparatus for objective speech quality measurements of telecommunication equipment |
04/15/1997 | US5621757 Circuit for measuring electric field by rapid measurement and normal measurement in a mobile communication system and method of using same |
04/09/1997 | EP0767552A2 GSM base station test unit |
04/09/1997 | EP0586548B1 Radio frequency error detection and correction system |
04/09/1997 | CN1147188A Digital radio telecommunication equipment having function of measuring received electric field strength |
04/03/1997 | WO1997002675A3 Cdma modem |
04/01/1997 | US5617451 Direct-conversion receiver for digital-modulation signal with signal strength detection |
04/01/1997 | US5617101 Satellite-based geolocation calibration system and method |
04/01/1997 | CA2061603C Radio receiver capable of detecting a correct electric field strength of a received radio signal of a particular frequency |
03/26/1997 | EP0764997A1 Antenna assembly for a radio transceiver |
03/25/1997 | US5615408 Apparatus and method for credit based management of telecommunication activity |
03/18/1997 | US5613232 Receiver apparatus comprising display means for displaying signal strengths of signals having a plurality of frequencies, and display apparatus for use in receiver apparatus |
03/18/1997 | US5612955 Mobile radio with transmit command control and mobile radio system |
03/13/1997 | WO1997009798A1 Airplane pilot communication aid |
03/13/1997 | DE19533113A1 Vorrichtung zum Messen der Signallaufzeit einer digitalen Übertragungseinrichtung Apparatus for measuring the signal propagation delay of a digital transmission facility |
03/12/1997 | EP0762791A2 Method for automatic mode switching in a multi-mode mobile phone |
03/12/1997 | EP0762698A2 Frequency estimation using iterative filtering, particularly for cellular telephony system |
03/12/1997 | EP0762667A2 Measuring device of the propagation time in a digital transmission system |
03/06/1997 | WO1997004538A3 A wireless digital communication device, and a peak-detector |
03/06/1997 | DE19531998A1 DC component compensation method for radio receiver |
03/04/1997 | US5608854 Method and apparatus for displaying information in a communication system |
02/26/1997 | EP0759258A1 Mobile radio transmission system with integrated measuring device for dimensioning the radio-coverage area |
02/25/1997 | US5606729 Method and apparatus for implementing a received signal quality measurement in a radio communication system |
02/25/1997 | CA2067301C Receiver having an individual selective call function and a security function for preventing unauthorized use of the receiver |
02/20/1997 | WO1997002665A3 Automatic power control system for a code division multiple access (cdma) communications system |
02/20/1997 | DE19632841A1 Mehrortfunksystem, Basisstation und Verfahren zum Betrieb eines Funksystems Mehrortfunksystem, base station and method of operating a radio system |
02/18/1997 | US5604924 Radio communication apparatus in which output power is controlled by pulse width modulation using a mobile attenuation code |
02/18/1997 | US5604806 Apparatus and method for secure radio communication |
02/18/1997 | US5604728 Method for testing a transceiver, and base station of a time-divisional radicommunication system |
02/13/1997 | WO1997005717A1 Apparatus and method for rate determination in on-off variable-rate communication systems |
02/13/1997 | WO1997005494A1 Lan tester |
02/13/1997 | WO1997002714A3 Code division multiple access (cdma) communication system |
02/13/1997 | CA2200599A1 Apparatus and method for rate determination in on-off variable-rate communication systems |
02/12/1997 | CN1142711A Recceiver for extending dynamic range of received signal strength indicator for use in cellular communication system |
02/11/1997 | US5603112 Received signal strength indicator utilizing approximation factors and the I and Q signal components |
02/11/1997 | US5603095 Radio system and a subscriber terminal for a radio system |
02/11/1997 | US5603094 Animal tracking system with transmitter attachable to an animal's collar |
02/11/1997 | US5603088 Method and apparatus for determining a quality level of an analog signal in a radio communication system |
02/11/1997 | US5602854 Wireless personal local area network utilizing removable radio frequency modules with digital interfaces and idle sense communication protocol |
02/11/1997 | US5602456 Hand held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation |
02/06/1997 | WO1997004538A2 A wireless digital communication device, and a peak-detector |
02/05/1997 | CN1142292A Method and apparatus for automatic modulation calibration in a radio transmitter |
02/05/1997 | CN1142146A Method for retransmission of information and apparatus thereof |
02/04/1997 | US5600656 Remote loopback apparatus and method for telephone line repeaters |
01/29/1997 | EP0755615A1 Method for adapting a transmission mode in a mobile radiocommunication system |
01/29/1997 | CN1141545A Digital radio communication apparatus |
01/29/1997 | CN1141542A Transmission diversity system |
01/28/1997 | US5598431 Method and apparatus for signal quality detection in a communication system |
01/28/1997 | CA2107767C Radio frequency error detection and correction system |
01/23/1997 | WO1997002714A2 Code division multiple access (cdma) communication system |
01/23/1997 | WO1997002675A2 Cdma modem |
01/23/1997 | WO1997002665A2 Automatic power control system for a code division multiple access (cdma) communications system |
01/23/1997 | DE4428729A1 Bidirectional surveying method esp. for radio channel |
01/23/1997 | CA2848679A1 Noise level estimation |
01/23/1997 | CA2645140A1 Noise level estimation |
01/22/1997 | EP0755133A2 Method and apparatus for RSSI measurement in a digital radio system |
01/22/1997 | EP0754940A2 Modular wireless diagnostic, test, and information system |
01/22/1997 | EP0543007B1 Radio system with arrangement for monitoring quality of radio-transmission channels |
01/21/1997 | US5596570 System and method for simulating interference received by subscriber units in a spread spectrum communication network |
01/16/1997 | WO1997001891A1 Data-transfer method and device with multi-channel transmitters and wide-band portable receivers |
01/16/1997 | WO1996023376A3 Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics |
01/14/1997 | US5594950 Radio communication system |
01/14/1997 | US5594785 Method of producing ring-back tone in order wire |
01/14/1997 | US5594733 Multi-station bus system having means for polling and updating of globally relevant information, in particular a station address, and station for use in such system |
01/14/1997 | US5594662 Data link control system for monitoring control |
01/09/1997 | WO1997001229A1 Method and apparatus for implementing a received signal quality measurement in a radio communication system |
01/09/1997 | WO1997001226A1 Method for setting transmit and receive chains of channels formed by a mobile radio system base station |
01/09/1997 | CA2225800A1 Method for setting transmit and receive chains of channels formed by a mobile radio system base station |
01/08/1997 | EP0752736A1 A method and apparatus for remotely calibrating a phased array system used for satellite communication |
01/08/1997 | CN2244789Y Full-automatic measuring controller for radio station |
01/07/1997 | US5592490 Spectrally efficient high capacity wireless communication systems |
01/03/1997 | WO1997000586A1 Method and apparatus for establishing a test loop for monitoring the operation of a radio station |