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