| Patents for H04B 17 - Monitoring; Testing (29,423) |
|---|
| 10/29/1991 | US5062148 Multi-path fading simulator |
| 10/17/1991 | WO1991015904A1 Base station transceiver diagnostics equipment |
| 10/08/1991 | US5054876 Optical fiber telecommunication line including amplifiers distributed along the line for the transmitted signals |
| 10/08/1991 | CA1290398C Method and apparatus for isolating faults in an antenna system |
| 10/02/1991 | EP0449475A2 Telemetry for optical fiber amplifier repeater |
| 10/01/1991 | CA2050898A1 Base station transceiver diagnostics equipment |
| 09/25/1991 | EP0448293A1 Method of locating a fault |
| 09/18/1991 | EP0446523A2 Determination of dispersion characteristics of a communication channel from a received training sequence processed by correlation and replication |
| 09/18/1991 | CN2085116U Self-loop frequency mixer |
| 09/11/1991 | EP0445232A1 Fiber optic link noise measurement and optimization system. |
| 08/22/1991 | WO1991012676A1 Method of and apparatus for identification of a monitoring signal at a base station in a radio telephone system |
| 08/22/1991 | WO1991012675A1 Base station for a radio system |
| 08/13/1991 | US5040181 Non-intrusive diagnostic system for a digital modem transmission channel, including an A/D converter clocked at a multiple of the symbol rate |
| 08/07/1991 | EP0439942A2 Baseband signal processing unit and method of operating the same |
| 08/06/1991 | US5038364 Transmission line monitoring system |
| 08/06/1991 | US5038140 Supervisory system in communication system |
| 08/06/1991 | CA1287378C Apparatus for judging quality of mobile data communication |
| 07/31/1991 | CN2082049U Monitor multiplexer on duty |
| 07/17/1991 | EP0437362A2 Adjacent channel selectivity signal generator system |
| 07/12/1991 | CA2019291A1 Adjacent channel selectivity signal generator system |
| 07/09/1991 | US5031232 Method and apparatus for providing an operating mode alias to a radio |
| 06/26/1991 | EP0434651A1 A method of effecting channel estimation for a fading channel when transmitting symbol sequences |
| 06/25/1991 | US5027427 Monitoring system for radio communication apparatus |
| 06/23/1991 | WO1991010296A1 A method of effecting channel estimation for a fading channel when transmitting symbol sequences |
| 06/18/1991 | US5025453 Method of measuring the signature of digital transmission equipment, and apparatus for implementing such a method |
| 06/13/1991 | DE4000899C1 Interference signal detector at output of HF receiver - compares output signals of two separated input branches at different amplification levels |
| 06/05/1991 | EP0430605A2 Frequency detector based on a digital phase lock loop |
| 05/29/1991 | EP0428619A1 Mobile radio paging test system |
| 05/22/1991 | EP0427951A2 System to generate switching criteria and equalize adaptively in data spectrum |
| 04/03/1991 | EP0420505A2 Method of tuning and compensating power levels in a radio telephone |
| 04/02/1991 | US5005210 Method and apparatus for characterizing a radio transmitter |
| 03/27/1991 | EP0418853A2 Method and system for testing mobile communication system |
| 03/19/1991 | US5001742 Baseband signal processing unit and method of operating the same |
| 03/12/1991 | US4999613 Remote confinement system |
| 03/06/1991 | EP0415897A1 A method of reducing the power requirements in a mobile radio receiver |
| 03/06/1991 | EP0415610A2 Radio receiver |
| 02/21/1991 | WO1991002417A1 Knowledge based radio |
| 02/20/1991 | EP0151616B1 Control signalling arrangement for a digital transmission system |
| 02/13/1991 | EP0412422A2 Self-test system for external programming device |
| 02/13/1991 | CN1049256A Method and device for evaluating throughput of virtual circuits employing time-division multiplexed transmission channel |
| 02/06/1991 | EP0411756A2 Radio telephone receiver with gain control |
| 01/30/1991 | EP0410266A2 Circuit for switching a digital service channel of a radio relay |
| 01/23/1991 | EP0408905A2 Optical fiber telecommunication line comprising amplifiers of the transmitted signals and amplifiers for said line |
| 01/23/1991 | EP0408580A1 Device for in-process monitoring of transmission systems. |
| 01/08/1991 | US4984293 Multi-channel microwave receiver having self-test capability |
| 12/27/1990 | WO1990016033A1 Hand-held data capture system with interchangeable modules |
| 12/25/1990 | US4980887 Digital communication apparatus and method |
| 12/25/1990 | US4979506 Self-test system and method for external programming device |
| 12/19/1990 | EP0152423B1 Maintenance response signalling arrangement for a digital transmission system |
| 12/18/1990 | CA1278117C Supervisory system for a primary group digital transmission line |
| 12/18/1990 | CA1278043C Fm communication device with avoidance of interference by substantially same channel fm signal |
| 12/11/1990 | US4977607 Method of generating an RF signal modulated by a message signal and distorted by a predetermined fading profile for testing RF receivers, and apparatus for carrying out the method including a fading simulator |
| 12/11/1990 | US4977579 Test set for a navigational satellite receiver |
| 12/11/1990 | US4977399 Mobile radio paging test system |
| 12/08/1990 | CA2020357A1 Hand-held data capture system with interchangeable modules |
| 12/05/1990 | EP0400166A1 Method for localizing disturbances in a monitoring and/or control system |
| 12/05/1990 | CN1047594A Rapid receiver signal strength indication |
| 11/28/1990 | EP0399845A2 Rapid receiver signal strength indication |
| 11/27/1990 | WO1990014730A1 Rapid received signal strength indication |
| 11/20/1990 | US4972511 Receiver test apparatus with test message injector |
| 11/20/1990 | US4972408 Method and apparatus for combining and for separating a low data rate digital channel with or from the high data rate digital channel of a transmission link |
| 11/20/1990 | US4972275 Wideband radio-frequency broadcast recorder and radio testing system |
| 11/13/1990 | US4970510 Self test avionics equipment |
| 11/07/1990 | EP0395739A1 Process for controlling and/or monitoring and circuit arrangement for implementing the process. |
| 11/07/1990 | CN2065379U Low frequency wide band flat noise generator |
| 11/06/1990 | US4969207 Radio receiver with reception deterioration compensation |
| 10/27/1990 | WO1990013197A1 Remote confinement system |
| 10/27/1990 | CA2051666A1 Remote confinement system |
| 10/24/1990 | EP0393856A2 Modulation of adjacent channels |
| 10/23/1990 | CA1275515C System for transmitting auxiliary signal in a multiplex communication system |
| 10/17/1990 | EP0392246A2 Monitoring and control system for digital information transmission systems with master and substitution master |
| 10/17/1990 | EP0392245A2 Automatic addressing of monitoring and/or control processing units comprised in a digital information transmission system |
| 10/16/1990 | US4964065 Computer-controlled electronic system monitor |
| 09/26/1990 | EP0388798A1 Device for storing the address of an in-operation monitoring processing unit |
| 09/19/1990 | CN1045497A Setting of electronic circuits |
| 09/05/1990 | EP0385781A2 Radio frequency energy detection circuitry |
| 09/05/1990 | EP0385126A2 In-service monitoring and/or control apparatus for transmission devices of the electrical information transmission technique |
| 09/04/1990 | US4955070 Apparatus and method for automatically monitoring broadcast band listening habits |
| 09/04/1990 | CA1273679A1 Telesignalling method and device for a bidirectional digital transmission link |
| 08/14/1990 | US4949090 Transmit/receive module test system |
| 08/14/1990 | CA1272816A1 Method of and circuit arrangement for switching- through a radio connection to another radio cell of a digital radio transmission system |
| 08/07/1990 | US4947459 Fiber optic link noise measurement and optimization system |
| 08/01/1990 | EP0379750A1 Apparatus for transmitting information by radio waves, comprising transceiver devices |
| 08/01/1990 | EP0379706A1 Non-intrusive device for diagnosing a transmission channel for a digital modem applied to a demodulator-regenerator |
| 07/04/1990 | EP0376666A1 The setting of electronic circuits |
| 07/03/1990 | US4939747 Digital communication system with addressable repeaters and devices for fault isolation |
| 06/28/1990 | CA2006159A1 Setting of electronic circuits |
| 06/27/1990 | EP0374303A1 Process for the individual monitoring of transmission sections of a communications transmission link, and apparatus for carrying out the process |
| 06/27/1990 | CN1008585B Pcm coder monitoring method and equipment |
| 06/23/1990 | CA2006394A1 Method of and apparatus of individually monitoring transmission sections of a communications transmission link |
| 06/23/1990 | CA2006084A1 Information transmission arrangement comprising transceiver units |
| 06/20/1990 | EP0373552A1 Method for measuring the signature of a digital transmission equipment, and device for carrying out the method |
| 06/19/1990 | CA1270539A1 Fault location system for a digital transmission line |
| 06/15/1990 | CA2005594A1 Method and device for measuring the signature of a digital transmission equipment |
| 06/14/1990 | WO1990006640A1 Fiber optic link noise measurement and optimization system |
| 06/13/1990 | CN2058289U Remote-measuring device for electrical properties of locomotive transceiver during dispatching and receiving |
| 06/12/1990 | US4933958 Method for receiving carrier oscillations modulated with a useful signal |
| 06/06/1990 | EP0371445A2 Transmission line monitoring system |
| 06/06/1990 | EP0371286A2 Method for generating a high-frequency signal modulated by an information signal and distorted by a predetermined fading profile for testing high-frequency receivers, and fading simulator for carrying out said method |
| 05/23/1990 | EP0369372A1 Securing method for auxiliary streams dropped and inserted in any station along a digital radio relay trunk |