| Patents for H04B 17 - Monitoring; Testing (29,423) |
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| 03/11/1998 | EP0828395A2 Fiber optic operations center |
| 03/11/1998 | EP0828353A2 Registration method and apparatus in mobile communication system |
| 03/11/1998 | EP0827651A1 Method and apparatus for estimating a channel parameter in a digital radio frequency communication system |
| 03/10/1998 | US5726993 Signal detector for telephone line repeator remote loopback system |
| 03/10/1998 | US5726992 Circuit for and method of assessing an RDS signal |
| 03/04/1998 | EP0827357A2 Cross-connect network node |
| 03/04/1998 | EP0827291A2 Improved user terminal access in satellite communication systems |
| 03/04/1998 | EP0827289A2 Access to a satellite communication system by measuring the quality of transmitted signals |
| 03/04/1998 | EP0827287A2 Alarming system for a handheld telephone |
| 03/03/1998 | US5724305 Apparatus for acoustic near field scanning using conformal arrayal |
| 02/26/1998 | WO1998008107A1 Method and system for calculating transmitted signal coverage in an environment model using a receiver area data structure |
| 02/25/1998 | EP0825734A2 Self-testing transceiver |
| 02/25/1998 | EP0824806A1 Method and apparatus for controlling frequency deviation of a portable transceiver |
| 02/25/1998 | CN1174640A Method and apparatus for testing digital communication channel |
| 02/24/1998 | US5722064 Radio receiver for use in a radio tracking system |
| 02/24/1998 | US5722059 Radio receiver for use in a radio tracking system and a method of operation thereof |
| 02/24/1998 | US5722048 Apparatus for improving the signal to noise ratio in wireless communication systems through message pooling and method of using the same |
| 02/17/1998 | US5719902 Methods and apparatus for detecting cellular digital packet data (CDPD) |
| 02/11/1998 | EP0823621A2 Apparatus for detecting a fault location in an optical fiber line |
| 02/11/1998 | CN1173265A Spectrally efficient high capacity wireless communication systems |
| 02/10/1998 | CA2058191C Arrangement and method for detecting interference in tdma communications system |
| 02/04/1998 | CN1172405A Radio communication system with flexible testing capabilities |
| 02/04/1998 | CN1172384A Temperature compensated wide dynamic range power detection circuitry for portable RF transmission terminals |
| 02/03/1998 | US5715235 Communication system capable of performing FDMA transmission |
| 02/03/1998 | US5714937 Omidirectional and directional antenna assembly |
| 02/03/1998 | US5714876 In-service serial digital source signal-level and cable-length measurement |
| 01/29/1998 | WO1998004059A1 Method and system for calculating a transmitted signal characteristic in an environmental model having attenuator figures |
| 01/28/1998 | CN1171872A Process for transmitting messages from secondary control system to primary control system |
| 01/28/1998 | CN1171674A Radio lop-back test method having improved reliability and system using test method |
| 01/27/1998 | CA2116131C A method for controlling transmission power in a communication system |
| 01/21/1998 | EP0820161A2 Optical interference measurement method and system |
| 01/21/1998 | EP0819361A1 Transceiver tester for cellular radio |
| 01/21/1998 | EP0819343A1 A method and a circuit of self calibrating and testing qpsk transceivers |
| 01/20/1998 | US5710983 Channel selecting system utilizing a random number generator having a shift register, switches and Boolean function circuit to randomly select a channel frequency |
| 01/20/1998 | US5710980 Cell site testing method for portable radio communication system |
| 01/20/1998 | US5710979 Monitoring a local station with first and second messages used when the local station is in normal operation and is not and is busy |
| 01/20/1998 | US5710977 Apparatus for measuring multipath propagation characteristics |
| 01/20/1998 | US5710791 Methods and apparatus for predicting voice quality in AMPS cellular radio systems |
| 01/20/1998 | US5710772 TDMA radio communication system |
| 01/20/1998 | US5710758 Wireless network planning tool |
| 01/16/1998 | CA2209819A1 Traffic alert warning system and method for alerting vehicle operators of road conditions |
| 01/15/1998 | WO1998001967A2 Circuit configuration for detection of analogue switching and check signals |
| 01/15/1998 | WO1998001965A1 Instrument for measuring leakage power leaking to adjacent channel |
| 01/15/1998 | WO1998001959A1 Method for determining strength of co-channel signals, and a receiver |
| 01/15/1998 | DE19627516A1 Mobile radio receiving unit for field strength measurements |
| 01/14/1998 | EP0818936A2 Channel usage monitoring arrangement for base station |
| 01/14/1998 | EP0818084A1 Method and apparatus for performing power control in a mobile communication system |
| 01/13/1998 | US5708680 Network utilizing a controller and base transceivers to route voice packets |
| 01/08/1998 | WO1998000937A1 Storage and reproduction method and apparatus |
| 01/08/1998 | DE19710474A1 Temperature compensated logarithmic amplifier for mobile telephone |
| 01/08/1998 | CA2258951A1 Storage and reproduction method and apparatus |
| 01/07/1998 | EP0817515A1 System and method for collection of transmission characteristics for a cellular radio telephone |
| 01/07/1998 | EP0784448A4 Signal processing apparatus |
| 01/07/1998 | EP0691058B1 Self-diagnostic system for cellular-transceiver systems |
| 01/07/1998 | CN2272170Y 900 megahertz radio mult-channel alarm programmable controller |
| 01/07/1998 | CN1169644A Detection circuit of received signal strength of mobile communication system |
| 01/06/1998 | US5706307 Method and arrangement for the determination of the ratio for common-channel or adjacent-channel interferers in digital mobile communication networks |
| 12/31/1997 | WO1997050270A1 System and method for collection of transmission characteristics of a cellular radio telephone |
| 12/31/1997 | WO1997050191A1 Method and apparatus for rate determination in a communication system |
| 12/31/1997 | CN1169068A System for real-time notice of fault from microwave system |
| 12/30/1997 | US5703902 Method and apparatus for determining signal strength in a variable data rate system |
| 12/30/1997 | US5703479 Method for testing a unit under test |
| 12/24/1997 | WO1997049258A1 Adaptive capacity and quality improvements in cellular radio services by the removal of strong interference sources |
| 12/24/1997 | WO1997049198A1 Method and apparatus for adaptive quality adjustment in a telecommunication system |
| 12/24/1997 | CN2271223Y Asynchronous regulations analysis device |
| 12/24/1997 | CN1168624A Signal processing apparatus |
| 12/24/1997 | CN1168616A Radio characteristic evaluating apparatus of mobile telecommunication device |
| 12/24/1997 | CN1168614A GSM base station test unit |
| 12/24/1997 | CN1168473A System and method of measuring electric field strength |
| 12/24/1997 | CA2258621A1 Adaptive capacity and quality improvements in cellular radio services by the removal of strong interference sources |
| 12/24/1997 | CA2258230A1 Method and apparatus for adaptive quality adjustment in a telecommunication system |
| 12/23/1997 | US5701601 Receive signal level detection system |
| 12/18/1997 | WO1997048193A1 Fibre optic transmission with fibre amplifiers and supervisory signals |
| 12/17/1997 | EP0813349A2 Optical transmission system |
| 12/10/1997 | EP0812027A2 Calibration method for satellite communications payloads using hybrid matrices |
| 12/10/1997 | EP0811273A2 A receiver, an arrangement and a method for comparing two signals |
| 12/10/1997 | EP0811214A1 Radio tracking system and method of operation thereof |
| 12/09/1997 | US5697078 Wideband channel sniffer for monitoring channel use in a wireless communication system |
| 12/09/1997 | US5697067 Communication system utilizing radiating transmission line |
| 12/09/1997 | US5696485 Method for charging a transponder |
| 12/04/1997 | WO1997045750A1 Method and system for calculating a transmitted signal characteristic in an environmental model |
| 12/04/1997 | DE19621925A1 Frequency hopping transmitter identification method |
| 12/03/1997 | EP0809891A2 A logarithmic level detector and a radio receiver |
| 12/03/1997 | CN1166737A Automatic test and warning system and test method for optical fibre and cable trunk and network |
| 12/03/1997 | CN1166729A Wireless communication device and method of frequency-drift compensation |
| 12/02/1997 | US5694094 Narrow band arbitrary HF modulation and noise generator |
| 11/29/1997 | CA2206375A1 Optical amplifier relay transmission system |
| 11/27/1997 | WO1997044920A1 Self-calibration apparatus and method for communication device |
| 11/25/1997 | US5691988 Method for measuring the sensitivities and interference wave properties fo receivers |
| 11/18/1997 | US5689814 Radio communication apparatus with expanded dynamic range |
| 11/18/1997 | US5689813 Radio apparatus capable of detecting field intensity |
| 11/18/1997 | US5689812 Radio propagation simulation method |
| 11/18/1997 | US5689801 Power monitoring system for a single site, split location trunked radio communication system |
| 11/18/1997 | US5689604 Fiber optic operations center |
| 11/18/1997 | US5689504 Mobile radio communication system and channel control method therefor |
| 11/12/1997 | EP0806849A2 Circuit arrangement for performance check of mobile broadcast reception systems |
| 11/12/1997 | EP0806101A1 Method and apparatus for testing a digital communication channel at variable or fixed data rates |
| 11/11/1997 | US5687196 Range and bearing tracking system with multipath rejection |
| 11/06/1997 | WO1997041675A1 Adaptive air interface |
| 11/06/1997 | WO1997034381A3 Method and apparatus for antenna realignment in a mobile radiotelephone using an injected audio signal |