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