Patents for H04Q 1 - Details of selecting apparatus or arrangements (11,745) |
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11/08/1994 | US5362257 Communications connector terminal arrays having noise cancelling capabilities |
11/04/1994 | CA2117232A1 Cable management system |
11/02/1994 | EP0622964A1 Voice activity detection method and apparatus using the same |
11/02/1994 | EP0622963A2 Apparatus for adaptively tuning to a received periodic signal |
11/02/1994 | EP0622962A1 Call progress tone detection method |
11/02/1994 | EP0550642B1 Dtmf signal detection apparatus for a voice store and forward equipment |
11/01/1994 | US5361298 Telecommunications service provision equipment transfer |
10/27/1994 | WO1994024806A1 A method to produce and transmit information |
10/27/1994 | WO1994024726A1 Telecommunications terminal block |
10/26/1994 | EP0621734A2 Method and apparatus for monitoring telecommunication networks |
10/26/1994 | EP0621733A1 Pluggable protection module for module for fast interconnection of telephone lines |
10/26/1994 | CN2181151Y Frame for telephone general wire distributing shelf |
10/26/1994 | CN2181150Y Double-surface inclined module |
10/25/1994 | US5359654 Telecommunications network interface assembly |
10/25/1994 | US5359652 Tone receiver comprising a switch capacitor zero crossing detector |
10/20/1994 | DE4308228C1 Main distributor for optical fibres in communications technology |
10/19/1994 | EP0602067A4 Transparent inband signaling. |
10/19/1994 | CN1093859A Distribution device, in particular for the main distribution device of telephone and data lines |
10/13/1994 | WO1994023546A1 Cabinet and position allocation |
10/13/1994 | CA2136963A1 Cabinet and position allocation |
10/11/1994 | US5355408 Network interface device with environmentally protected compartment |
10/05/1994 | EP0618741A1 Distribution arrangement, especially for the main distribution of telephone and data lines |
10/04/1994 | US5353346 Multi-frequency signal detector and classifier |
10/04/1994 | US5353345 Method and apparatus for DTMF detection |
10/04/1994 | US5353344 Method of determining levels at given frequencies of a VF signal |
10/04/1994 | US5353342 Adaptive multitone signaling method |
09/28/1994 | CN2178410Y Sweating safety device for telephone wire |
09/28/1994 | CN2178409Y Communication cable free wiring configuration adapter junction box |
09/27/1994 | US5351232 Path monitoring system for cross-connect system |
09/22/1994 | DE4406483A1 Tondetektor Tone detector |
09/21/1994 | EP0615662A1 Gel filled electrical connector |
09/21/1994 | CN2178030Y Direct type quick connecting module |
09/21/1994 | CN2178029Y Improved safety wiring gang |
09/20/1994 | US5349578 Time slot switching function diagnostic system |
09/20/1994 | US5349254 Call progress detection circuit |
09/15/1994 | WO1994021100A1 Telecommunications device |
09/14/1994 | EP0614596A1 Device for the automatic distribution of telephone and data connections |
09/13/1994 | US5347611 Apparatus and method for transparent tone passing over narrowband digital channels |
09/13/1994 | US5347572 Telephone line monitoring apparatus and method |
09/13/1994 | US5347270 Method of testing switches and switching circuit |
09/07/1994 | EP0520991B1 Distributing frame for telecommunication networks |
09/07/1994 | CN1091887A A method of connecting subscribers to a telephone exchange |
09/01/1994 | WO1994019896A1 Telelphone dialling code processor |
08/31/1994 | CN1091573A Method and apparatus for detecting telephone line states in electronic switching system |
08/30/1994 | US5343510 Wireless telephone |
08/30/1994 | US5343414 Apparatus for adaptively tuning to a received periodic signal |
08/25/1994 | DE4317367C1 Switching network for a digital time-division multiplex telephone exchange |
08/24/1994 | CN2175504Y Pressed block for telephone cable conjunction |
08/23/1994 | US5341269 Voltage protector and grounding bar arrangement for terminal block |
08/20/1994 | CA2115692A1 Distribution device, in particular for the main distribution device of telephone and data lines |
08/18/1994 | WO1994018722A1 Transmission line connectors and assemblies thereof |
08/18/1994 | DE4324798C1 Screened housing for a distribution panel |
08/16/1994 | US5339251 Apparatus for adaptively tuning to a received periodic signal |
08/09/1994 | US5337400 Distribution frame and optical connector holder combination |
08/09/1994 | US5337378 Optical fiber switch including partitions for restricting surplus fibers |
08/09/1994 | US5337347 Method and system for progressive database search termination and dynamic information presentation utilizing telephone keypad input |
08/04/1994 | WO1994017572A1 Gel filled modular electrical connecting block |
08/03/1994 | EP0609136A1 Connector terminal for connecting leads |
08/03/1994 | EP0609135A1 Pre-wired terminal block |
07/27/1994 | CN1090111A Anti-saturation exchanger port inductive circuit |
07/26/1994 | US5333193 Telephone network termination module having insulation displacement terminals |
07/26/1994 | US5333191 Detection of multifrequency tone signals |
07/26/1994 | US5332397 Telecommunications adapter |
07/20/1994 | EP0519924B1 Contact component for a distribution switchboard in a telecommunication network |
07/19/1994 | US5331206 Circuit for driving a transmission line |
07/13/1994 | CN2171962Y Clip safety wiring module |
07/13/1994 | CN2171961Y Safety device for telephone wiring frame |
07/12/1994 | US5329583 Enhanced automatic call distribution system operation |
07/12/1994 | US5329538 Circuit for providing digital data having high clarity in a digital signal receiver |
07/12/1994 | US5329520 High-speed facility protection in a digital telecommunications system |
07/07/1994 | DE4314353C1 Connecting leads for switching matrix bay in communications exchange |
07/06/1994 | EP0605093A1 An improved cable organiser |
07/06/1994 | CN2171185Y Four safety constructional detail |
07/05/1994 | US5327418 Circuit arrangement for centrally controlled telecommunications exchanges |
06/28/1994 | US5325427 Apparatus and robust method for detecting tones |
06/28/1994 | US5323916 Unequal flange-type telephone equipment rack adapted for universal application |
06/23/1994 | DE4242742A1 Communications engineering appts. mounting frame with cabling spaces |
06/22/1994 | EP0602067A1 Transparent inband signaling |
06/21/1994 | US5323454 Telephone junction enclosure and system for sealing a wire opening array |
06/15/1994 | EP0601984A1 A method of connecting subscribers to a telephone exchange |
06/15/1994 | EP0601082A1 Adaptive echo canceller for voice messaging system |
06/14/1994 | US5321745 Adaptive efficient single/dual tone decoder apparatus and method for identifying call-progression signals |
06/14/1994 | CA1330225C Interface circuit with transient event tolerance |
06/09/1994 | WO1994013061A1 Arrangement for isolating a dc coupling from a symmetry requiring ac circuit |
06/07/1994 | US5319703 Apparatus and method for identifying speech and call-progression signals |
06/01/1994 | EP0599701A1 Communication system with contact bank for high bit rate communications |
06/01/1994 | EP0599442A1 Private branch exchange |
06/01/1994 | EP0598931A1 Method for the control of switched telephone connections, especially permanent switched telephone connections |
06/01/1994 | CN2167495Y Electricity wire distribution frame with single working surface |
05/18/1994 | EP0597327A2 Multiple terminal bloc for distribution frames and systems of low current installation |
05/17/1994 | US5313519 Protected telephone network interface device |
05/17/1994 | US5312270 Wiring block having detachable leg assemblies |
05/11/1994 | WO1994010808A1 Intelligent pulse to tone converter (cpti) |
05/11/1994 | EP0596776A1 Contact bank with adaptable labelling |
05/11/1994 | CN2164623Y Single side jumping type teminal mould block for outer wire of general wire assembling frame |
05/10/1994 | US5311589 Apparatus and method for audible signaling tone recognition |
05/10/1994 | US5311588 Call progress detection circuitry and method |
05/10/1994 | US5311575 Telephone signal classification and phone message delivery method and system |
05/10/1994 | US5311170 Method and system for making bipolar switching to protection channel |
05/04/1994 | EP0594831A1 Telecommunications network interface assembly |