Patents
Patents for H04B 17 - Monitoring; Testing (29,423)
11/1997
11/05/1997EP0805509A2 Active phased array adjustment using transmit amplitude adjustment range measurements
11/05/1997EP0804858A1 Spectrally efficient high capacity wireless communication systems
11/05/1997EP0804840A2 Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics
11/05/1997EP0804839A1 Establishment of cryptographic keys in radio networks
11/05/1997CN1164149A Satellite communication method
10/1997
10/30/1997DE19713441A1 Digital quadrature modulation signal parameter measuring apparatus
10/29/1997CN1163691A Method and arrangement in mobile unit
10/23/1997WO1997039597A1 Method for measuring intermodulation
10/22/1997CN1163029A Method and apapratus for temperature compensation in a time division multiplex receiver
10/21/1997US5680405 Remote reporting system for digital transmission line elements
10/21/1997US5679943 Hand-held terminal with display screens, interactive screens, magnetic credit card readers, scanners, printers and handlers
10/14/1997US5677781 Method and device for measuring a noise figure in optical amplifiers
10/14/1997US5677620 Method and apparatus for removing an error signal component from an RSSI signal
10/09/1997WO1997037443A1 Two-way communication system for performing dynamic channel control
10/08/1997EP0800285A2 Method for adjusting the parameters of a receiving apparatus, as well as corresponding receiving apparatus and radio station
10/07/1997US5675588 Testing apparatus for transmission system
10/07/1997US5675581 Simulating user interference in a spread spectrum communication network
10/07/1997US5675523 Waveform data generating apparatus
10/02/1997WO1997036385A1 Mobile communication device
10/01/1997EP0798879A2 Demand-assigned satellite communications system
10/01/1997EP0797877A1 Digital transmission system for encoding and decoding attribute data into error checking symbols of main data
10/01/1997EP0701752A4 A method and apparatus for determining signal usability
09/1997
09/30/1997US5673031 Redundant radio frequency network having a roaming terminal communication protocol
09/24/1997CN1160462A Reception method, and receiver
09/18/1997WO1997034398A1 Methods and apparatus for detecting the presence of a prescribed signal in a communication channel
09/18/1997WO1997034381A2 Method and apparatus for antenna realignment in a mobile radiotelephone using an injected audio signal
09/18/1997WO1997034380A1 Method and apparatus for estimating a channel parameter in a digital radio frequency communication system
09/16/1997US5669065 Completely redundant communication system utilizing radiating transmission line
09/16/1997US5669063 Method of establishing line of sight propagation
09/16/1997US5668627 Optical line testing device and method for automatically and efficiently measuring properties of the optical line
09/12/1997WO1997033447A1 Method and system for testing the condition of a subscriber station in a radio system
09/12/1997WO1997033446A1 Remote test of a wireless subscriber connection
09/12/1997WO1997033381A1 A method and device for monitoring a mobile telephone repeater
09/12/1997CA2248151A1 Method and system for testing the condition of a subscriber station in a radio system
09/12/1997CA2248146A1 Remote test of a wireless subscriber connection
09/10/1997CN1159278A Antenna and feeder cable tester
09/03/1997EP0793292A1 An antenna receive calibration arrangement
09/03/1997EP0792563A1 Method and arrangement in a mobile unit
08/1997
08/28/1997WO1997031471A1 Testing a subscriber terminal of a wireless telecommunications system
08/27/1997EP0791256A1 Process for transmitting messages from a secondary control system to a primary control system
08/27/1997CN1157969A Device for monitoring complex system such as aircraft
08/26/1997US5661491 Method and means for reducing interferences in radio receivers
08/26/1997US5661467 Method and system for transferring supervisory right requirement in submarine cable communication network system
08/21/1997WO1997024896A3 Adaptive wireless cell coverage
08/21/1997WO1997023958A3 A receiver, an arrangement and a method for comparing two signals
08/21/1997WO1997023069A3 Process and device for detecting the transmission properties of mobile wireless telecommunication devices
08/21/1997DE19625859C1 Noise measurement for CDMA reception arrangement
08/20/1997EP0790503A1 Radiofrequency power measuring device
08/20/1997CN1157516A Data receiving system
08/14/1997WO1997029611A1 A method and apparatus for determining an optimal communications channel without loss of channel messages on a current communications channel
08/13/1997EP0789463A2 Method of parametrisation of a receiver with an associated intelligent antenna unit, as well as corresponding receiver unit and radio system
08/13/1997CN1157085A Method and apparatus for establishing tes
08/13/1997CN1156927A Antenna alarm detection system
08/12/1997US5657348 In a digital mobile radio communication system
08/12/1997US5657317 Hierarchical communication system using premises, peripheral and vehicular local area networking
08/12/1997US5657154 Monitoring system for all optical regenerators
08/12/1997US5656929 Method and apparatus for measuring RF power in a test set
08/05/1997US5655217 Spectrum sharing communications system for monitoring available spectrum
07/1997
07/31/1997WO1997027680A1 Method for unlicensed band port to autonomously determine interference threshold and power level
07/31/1997WO1997022183A3 A logarithmic level detector and a radio receiver
07/31/1997DE19617537C1 Functional test and measurement device for transponders e.g. as used for motor vehicle access verification systems
07/23/1997EP0785640A1 Method for extending the RSSI range and radio transceiver operating in accordance with this method
07/23/1997EP0784893A1 Hierarchical communication system providing intelligent data, program and processing migration
07/23/1997EP0784448A2 Signal processing apparatus
07/16/1997EP0784390A1 Method for changing the monitoring program in a receiving station of a microwave link, receiving station and corresponding microwave data transmission system
07/16/1997EP0784207A1 Lan tester
07/16/1997EP0783810A1 Radio scanner and display system
07/16/1997EP0783803A1 A wireless digital communication device, and a peak-detector
07/16/1997EP0783802A1 Method and device concerning fading related access control in a digital radio system
07/16/1997CN2257976Y External fault detection converter of telecommunication transmission equipment
07/15/1997US5649303 Method and apparatus for reducing interference among communication systems
07/15/1997US5648986 Receiver in digital radio communication device with selective equalization
07/13/1997CA2194901A1 Process for modifying the supervision program installed in a microwave receiving station and receiving station and microwave data transmission system using said process
07/10/1997WO1997024896A2 Adaptive wireless cell coverage
07/10/1997WO1997024624A1 Antenna adapter
07/09/1997EP0782797A1 Method and apparatus for temperature compensation in a time division multiplex receiver
07/08/1997US5646955 Apparatus for measuring cycle to cycle jitter of a digital signal and method therefor
07/03/1997WO1997024009A1 Simulation of distance between base station and mobile terminal
07/03/1997WO1997023958A2 A receiver, an arrangement and a method for comparing two signals
07/02/1997EP0782287A2 Data receiving system with channel identification
07/02/1997EP0781474A2 A reception method, and a receiver
07/01/1997US5644617 Method and apparatus for testing cables
07/01/1997US5644316 Active phased array adjustment using transmit amplitude adjustment range measurements
06/1997
06/26/1997WO1997023111A1 Supervisory audio tone-signalling tone (sat-st) handling
06/26/1997WO1997023109A1 Telemetric measuring of a mobile telephone network
06/26/1997WO1997023069A2 Process and device for detecting the transmission properties of mobile wireless telecommunication devices
06/26/1997WO1997023032A1 Digital calibration of a transceiver
06/26/1997CA2240896A1 Telemetric measuring of a mobile telephone network
06/25/1997EP0780746A1 Monitoring system for a complex system, especially for an aircraft
06/24/1997US5642353 Spatial division multiple access wireless communication systems
06/19/1997WO1997022183A2 A logarithmic level detector and a radio receiver
06/18/1997CN1152364A Method and apparatus for displaying information in communication system
06/17/1997US5640684 Radio data communication system comprising a common base radio station and handy radio terminals
06/10/1997US5638514 Centralized supervisory system for supervising network equipments based on data indicating operation states thereof
06/10/1997CA2110149C High frequency signal detecting circuit
06/04/1997EP0776586A1 Method and apparatus for establishing a test loop for monitoring the operation of a radio station
05/1997
05/29/1997WO1997019531A1 Method and apparatus for signal-to-noise ratio calculation in radiocommunication systems using measurements of supervisory audio tones
05/29/1997WO1997019530A1 METHOD AND APPARATUS FOR SIGNAL STRENGTH MEASUREMENT OF SUPERVISORY AUDIO TONES (SATs) IN A RADIO COMMUNICATIONS SYSTEM
05/29/1997CA2238347A1 Method and apparatus for signal-to-noise ratio calculation in radiocommunication systems using measurements of supervisory audio tones
05/28/1997EP0775391A1 Spectrally efficient and high capacity acknowledgment radio paging system