Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting › H04Q 1 - Details of selecting apparatus or arrangements
Patents for H04Q 1 - Details of selecting apparatus or arrangements (11,745)
09/1999
09/07/1999US5949874 Method and system for compensating for signal deviations in tone signals over a transmission channel
09/01/1999EP0901719A4 Non-linear reciprocating device
09/01/1999CN2336530Y Module type signal line distributing panel
08/1999
08/31/1999US5946389 Cabling for buildings
08/31/1999US5945633 Rack mountable cable distribution enclosure having an angled adapter plate bracket
08/31/1999CA2162414C Modular cross-connect system
08/26/1999DE19849538A1 Automatic main distributing frame control system for use in telephone network
08/25/1999EP0938163A2 Cable end branching element for telecommunication and data technology
08/25/1999CN2335326Y Electromagnetic wave radiation protector for mobile telephone set
08/24/1999US5943413 Method for selectively routing enhanced calls
08/24/1999US5942988 Remote engine starter with engine cutoff
08/24/1999US5942725 Self-grounding protector module for building entrance protector box
08/24/1999CA2195436C Switching in a telecommunications service node
08/19/1999WO1999041893A1 Call progress tone detection
08/19/1999WO1999041620A2 Method and arrangement for exchanging a faulty module, preferably in a digital local exchange installation
08/19/1999DE19805711A1 Verfahren und Anordnung zum Austausch einer defekten Baugruppe vorzugsweise innerhalb einer digitalen Vermittlungsstellenanlage Method and apparatus for replacing a defective module preferably within a digital exchanges Conditioning
08/18/1999EP0936820A1 Method and apparatus for detecting a customer premises equipment alerting (CAS) signal on a telephone line
08/18/1999CN1226114A Busy call management system and its method in exchange
08/18/1999CN1044761C Electromechanical component terminal array having noise-counteracting property
08/17/1999US5939689 Matrix-related switching arrangement including movable rods and balls
08/17/1999US5938478 Jack assembly & panel system
08/17/1999CA2170303C Method in a communications system for providing an out-of-band signaling response based on predetermined conditions
08/12/1999WO1999022562A3 A wire-bound telecommunication device and a circuit for use in such a device
08/12/1999DE19803420A1 Module of telecommunications equipment
08/11/1999EP0795170A4 Telephone network service for converting speech to touch-tones
08/11/1999CN2333133Y Combination regulating mobile telephone placing rack
08/10/1999US5937059 DTMF detector for detecting DTMF signals using a digital signal processing chip and method thereof
08/10/1999US5937032 Testing method and apparatus for verifying correct connection of curcuit elements
08/10/1999US5934912 Technique for effectively distributing communication connections
08/10/1999US5934485 Telecommunications rack
08/05/1999WO1999039540A1 Automatic detection of pots lines
08/05/1999WO1999039537A1 Method and arrangement for establishing an encrypted connection
08/05/1999WO1999039493A1 A cabling testing device
08/04/1999EP0932983A2 Telephone exchange
08/04/1999EP0701752B1 A method and apparatus for determining signal usability
08/04/1999CN2332133Y Small-sized safety unit
08/04/1999CN2332132Y Wire-jumper type general distribution frame
08/03/1999US5933484 Method for providing a menu to a subscriber on a switched communications network
08/03/1999US5932933 Structure of power supply system
07/1999
07/29/1999WO1999038257A2 Time discrete filter
07/28/1999CN1224257A Patch panel
07/27/1999US5930111 Overhead installed communication equipment
07/27/1999US5929381 Signal transmission media routing arrangement with rectangular distribution rings
07/27/1999CA2195437C Service node for a telephony network
07/22/1999WO1999036987A1 Telephone connecting strip
07/21/1999EP0719439B1 Voice activity detector
07/21/1999CN1223528A Device for displaying faults in telephone distribution frame
07/20/1999US5926540 Rack with circuit pack cable adapter and method of operation thereof
07/20/1999CA2172642C Tone detector with improved performance in the presence of speech
07/14/1999EP0929200A2 Method and device for providing direct inward dialling function in telecommunication exchanges
07/14/1999EP0929199A1 Modular optical/electronic backplane assembly
07/14/1999EP0928446A1 Miniature connector array
07/14/1999CN2329127Y Telecommunication machine frame with transmision conductor holding cavity
07/13/1999US5921508 Loose wire holder
07/13/1999US5921402 For a computer system
07/08/1999WO1999034549A1 Test access system and method for digital communication networks
07/08/1999WO1999034541A1 Method and apparatus for maintaining availability of lifeline telephony service on a hybrid fiber-coax network
07/08/1999WO1999034374A1 Current and transient voltage protector
07/08/1999CA2313074A1 Test access system and method for digital communication networks
07/07/1999EP0928096A2 XDSL splitter line module for network interface device
07/07/1999EP0928053A2 Patch panel
07/06/1999US5920623 Method and apparatus for defeating a predictive telemarketing system
07/06/1999US5920049 Crosspoint matrix switch with ball actuating members for contact mechanisms
07/06/1999CA2164247C Ring discriminator
07/06/1999CA2094645C Optical matrix switch
07/01/1999WO1999033311A1 An apparatus for interfacing a multi-channel digital link and a plurality of analog lines
07/01/1999WO1999033281A1 Tone detection using discrete fourier transform techniques
07/01/1999WO1999033280A1 Dial pulse collection in a digital loop carrier
07/01/1999WO1999020034A3 Network monitoring method for telecommunications network
06/1999
06/30/1999EP0926938A1 Telecommunications rack
06/30/1999CN2327127Y Connection device for extension antenna of mobile telephone set
06/30/1999CA2256924A1 Xdsl splitter line module for network interface device
06/30/1999CA2256905A1 Patch panel with retractable patch cord
06/24/1999WO1999031895A1 Data transmission over a coded voice channel
06/24/1999WO1999031894A1 Cross connect cabinet for telecommunication network
06/24/1999DE19757198A1 Digital coupling field function testing method
06/24/1999CA2256184A1 Telecommunications rack
06/23/1999EP0843908B1 Transient voltage surge protection assembly for telecommunications lines
06/23/1999CN2325940Y Distribution frame block for electric wire
06/23/1999CN2325939Y Improved mobile telephone set leather cover structure
06/22/1999US5914846 For interconnecting coaxial cables or fiber optic cables
06/22/1999US5913701 DSX module with removable switching jack
06/19/1999CA2225235A1 A line interface module
06/16/1999CN2324729Y Protection unit for main distributing frame
06/16/1999CN1043712C Method of connecting subscriber line to telephone exchanger
06/15/1999USRE36228 Call progress capability for a switched channel data service unit
06/15/1999US5912963 Method and apparatus for providing an alternate telecommunications network
06/10/1999WO1999029092A1 Transfer-connect telephony services utilizing automated audio systems
06/10/1999WO1999029085A2 Method and apparatus for detecting tones
06/10/1999WO1999029084A2 Method and apparatus for performing spectral processing in tone detection
06/10/1999WO1999029062A1 Line card with modem interface
06/09/1999EP0680666B1 Gel filled modular electrical connecting block
06/09/1999CN1219080A Automatic wiring connecting apparatus
06/08/1999US5910906 Digital single-frequency tone detection in presence of aliases
06/03/1999WO1999027404A1 Device for guiding lines in communication systems
06/02/1999CN2322335Y Concentrated type safety line bank
06/02/1999CN2322334Y Concentrated type testing line bank
06/02/1999CN2322333Y Optical fibre distributing frame
06/01/1999US5909183 Interactive appliance remote controller, system and method
05/1999
05/27/1999WO1999026427A1 Jack module
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