Patents
Patents for H04B 17 - Monitoring; Testing (29,423)
02/1996
02/07/1996EP0696151A2 Arrangement for determining a base station site
02/06/1996US5490288 Method for determining low signal quality communications
02/06/1996US5490235 Digital audio interface in a mobile telephone
02/06/1996US5489897 Power control monitoring system for underwater cable communications systems
02/01/1996WO1996002987A1 Method and apparatus for simulating interference received by subscribers in a spread spectrum communications system
02/01/1996WO1996002986A1 Method and apparatus for simulating user interference in a spread spectrum communications system
02/01/1996DE19526549A1 Kommunikationsvorrichtung und Verfahren mit adaptiver Burstübertragungszeit oder anderen Merkmalen Communication apparatus and method with adaptive burst transmission time or other features
02/01/1996CA2170636A1 Method and apparatus for simulating user interference in a spread spectrum communications system
02/01/1996CA2170517A1 Method and apparatus for simulating interference received by subscribers in a spread spectrum communications system
01/1996
01/31/1996CN1030880C A method for controlling transmission power in a communication system
01/30/1996US5488649 Method for validating a communication link
01/23/1996US5487178 Radio system base station including provision for generating and processing both analog and digital radio link quality monitoring signals
01/23/1996US5487177 FM receiver comprising a circuit arrangement for determining the field strength of FM transmitters
01/23/1996US5487176 Reception amplifier failure detection device and method for radio transceiver apparatus
01/23/1996US5486843 Signal level indicator and associated method
01/18/1996WO1996001544A2 A reception method, and a receiver
01/17/1996CN1115140A Portable field strength detector capable of correcting frequency deviation contained in field strength detected value
01/10/1996EP0691058A1 Self-diagnostic system for cellular-transceiver systems
01/10/1996CN1114851A Radio system and a subscriber terminal for a radio system
01/09/1996US5483676 Mobile radio data communication system and method
01/09/1996US5483233 Analogue telemetry system and method for fault detection in optical transmission systems
01/04/1996WO1996000434A1 Signal level indicator and associated method
01/04/1996DE19523343A1 Leakage energy measurer between adjacent channels in burst mode TDMA appts., esp. transmitter
01/03/1996EP0690593A2 Transmitter and receiver for use in TDMA/TDD mobile radio communications systems having loopback test facilities
01/03/1996EP0690567A2 Method and arrangement for the automatic detection of the oscillator frequency of an outdoor unit of a satellite reception system
01/03/1996EP0689950A2 Method of monitoring conditions of vehicle tires and tires containing a monitoring device therein
01/03/1996CN1114521A Method and apparatus for power estimation in a communication system
01/03/1996CN1114491A Microcomputer-based carrier detection system for a cordless telephone
01/02/1996US5481588 Test arrangements for radio telephone systems
01/02/1996US5481186 Method and apparatus for integrated testing of a system containing digital and radio frequency circuits
12/1995
12/27/1995EP0689306A2 Computer controlled radio tester and method
12/27/1995EP0688487A1 Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto
12/26/1995US5479453 Wireless telecommunication digital receiver
12/26/1995US5479417 Error correction apparatus capable of improving error correction ability without expansion of a frequency band
12/21/1995WO1995035004A1 Automatic determination and tuning of pico-cell topology for low-power wireless systems
12/21/1995WO1995034823A1 Method and device for the measurement of field strength in a radio channel and the neighbouring channels using zero if
12/20/1995EP0688107A1 AM radio receiver
12/20/1995EP0429469B1 Radio meter
12/13/1995EP0687080A1 Receive signal level detection system
12/12/1995US5475861 Method for controlling transmission power in a communication system
12/12/1995US5475709 Adjacent and alternate channels power measurement apparatus
12/12/1995US5475385 Analogue telemetry system and method for fault detection in optical transmission systems
12/06/1995CN2214718Y Electronic induction line seeker
12/06/1995CN1113056A Communication method/apparatus/system capable of performing FDMA transmission
11/1995
11/28/1995US5471650 Radio link parameter control in wireless personal communications system
11/28/1995US5471649 Base station transceiver diagnostic equipment
11/23/1995DE4415565A1 Transmission of faulty messages caused e.g. by hard or soft ware failure
11/21/1995US5469465 Method and apparatus for mitigating distortion effects in the determination of signal usability
11/21/1995US5469171 HF background noise measurement in HF environments
11/21/1995CA2021706C Optical fiber telecommunication line including amplifiers distributed along the line for the transmitted signals
11/16/1995WO1995031079A1 A method for validating a communication link
11/15/1995EP0681762A1 Wireless personal local area network
11/15/1995EP0531345B1 Radio test loop for a radio transceiver
11/15/1995EP0531333B1 Radio test loop for a radio transceiver
11/15/1995EP0531332B1 Radio test loop for a radio transceiver
11/15/1995EP0530339B1 Method for identifying a supervising signal at a base station of a mobile telephone system
11/15/1995CN1111888A Method for selecting a preferred communication resource
11/07/1995US5465393 Simulated air interface system for simulating radio communication
11/07/1995US5465276 Method of forming a channel estimate for a time-varying radio channel
11/02/1995EP0679302A1 Device for monitoring a message transfer unit
11/02/1995DE4422908C1 Automatically identifying oscillator frequency for satellite receiver frequency converter
10/1995
10/26/1995WO1995028814A1 Method for adapting a transmission mode in a mobile radiocommunication system
10/26/1995DE4413484A1 Determining relationship between frequency coverage and transferred information quantity e.g. for GSM mobile phone network
10/25/1995EP0678230A1 Radio link parameter monitoring in a wireless communications system.
10/25/1995CN1110889A Method for testing a transceiver, and a base station of a time-diviional radiocommunication system
10/24/1995US5461646 Synchronization apparatus for a diversity receiver
10/18/1995CN1110491A A method and apparatus for mitigating distortion effects in the determination of signal usability
10/17/1995US5459772 External apparatus for monitoring a communication system
10/12/1995DE19512296A1 Rapid prediction of propagation of radio waves in buildings
10/11/1995EP0676108A1 Apparatus and method for fault detection on redundant signal lines via encryption.
10/11/1995CN1110073A Method and arrangement for measuring the condition of a base station
10/10/1995US5457818 Detection threshold adjustment method for linear matched filter receivers
10/10/1995US5457812 Radio test loop having common combiner cable connecting transmitters, spaced at nλ/2 therealong, with receivers, via frequency converter
10/04/1995EP0531338B1 Radio test loop for a radio transceiver
09/1995
09/26/1995US5453865 For monitoring a telecommunications network
09/26/1995CA2119970A1 Program monitoring system
09/24/1995CA2143537A1 Mobile radio with transmit command control and mobile radio system
09/21/1995WO1995025390A1 A method and apparatus for measuring digital radio interference
09/21/1995WO1995023458A3 Method and apparatus for automatic modulation calibration in a radio transmitter
09/20/1995EP0673129A2 Method and apparatus for determining the C/I ratio for co-channel or adjacent channel interferene in digital mobile radio networks
09/20/1995CN1108854A Movable radio communicating apparatus with function for monitoring reiving/transmitting state
09/19/1995US5451839 Portable real time cellular telephone and pager network system monitor
09/14/1995DE4420448C1 Field-strength measurement method for radio channel and adjacent channels
09/13/1995EP0671111A1 Radio system and a subscriber terminal for a radio system
09/12/1995US5450624 Method and apparatus for diagnosing amp to speaker connections
09/12/1995US5450623 CN ratio measuring apparatus
09/12/1995US5450615 Prediction of indoor electromagnetic wave propagation for wireless indoor systems
09/06/1995EP0670090A1 Method and apparatus for power estimation in a communication system
09/05/1995US5448762 Method and apparatus for mobile radio communications having switched dual frequency synthesizers
09/05/1995US5448761 Channel assignment in a cellular mobile radio network with a CIR threshold level selected in dependency on priority degrees of channels used in the network
09/05/1995US5448758 Simulcast group determination of best signal by master site
09/05/1995US5448754 Radio frequency sharing personal communications system
08/1995
08/31/1995WO1995023458A2 Method and apparatus for automatic modulation calibration in a radio transmitter
08/30/1995EP0669061A1 An apparatus and method for detecting potentially fraudulent telecommunication activity
08/29/1995US5446392 Submarine equipment and fault locating method for a submarine communication system
08/23/1995EP0668510A1 An apparatus for providing a display
08/23/1995EP0513250B1 Base station for a radio system
08/22/1995US5444862 Circuit for stopping data transmission responding to low level and rapid fall of received electric field
08/16/1995EP0667055A1 A method and apparatus for mitigating distortion effects in the determination of signal usability
08/16/1995EP0667019A1 Hand-held data capture system with interchangeable modules