Patents
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
04/1997
04/23/1997CN2253083Y Adapter improved structure of mobile telephone
04/23/1997CN2253082Y Wireless mobile telephone losing alarming device
04/23/1997CN1148314A sound volume setting device for portable telephone
04/23/1997CN1148313A Method for executing automatic calling
04/23/1997CN1148304A Multi number plan method in key phone system
04/23/1997CN1148303A Button cover holding mechanism of portable telephone
04/22/1997US5623544 Telephone headset interface circuit
04/22/1997US5623542 Combination telephone network interface and cable television apparatus and cable television module
04/22/1997US5623539 Using voice signal analysis to identify authorized users of a telephone system
04/22/1997US5623538 Shared distribution of internal message storage facilities by a plurality of communication terminals
04/22/1997US5623537 Telephone message center
04/22/1997US5623536 Anonymous interactive telephone system
04/22/1997US5623531 Auxiliary power for telephone distribution system
04/22/1997US5623513 Mitigating clipping and quantization effects in digital transmission systems
04/22/1997US5622275 Sectional modular video-intercom control panel for simplified wiring
04/22/1997CA2102504C A method for eliminating acoustic echo in a communication device
04/22/1997CA2090167C Automatic handset-speakerphone switching arrangement for portable communication device
04/22/1997CA2084720C Cordless telephone micro-cellular system
04/22/1997CA2068254C Mobile telephone device wherein an adder supplies a sum of audio and out-of audio band signals to a compressor circuit
04/20/1997CA2188089A1 Telephone unit
04/17/1997WO1997014244A1 Information providing device and portable communication terminal
04/17/1997WO1997014234A2 Point-to-point internet protocol
04/17/1997WO1997014222A1 Personal audio message processor and method
04/17/1997WO1997008881A3 Telecommunication system
04/17/1997DE19635288A1 Telephone reception signal, volume changing method
04/17/1997DE19538096A1 Armband insert to hold multi-functional instruments for watches, manometers, transmitter or receiver
04/17/1997DE19537675A1 Microphone holder for communications terminal handset
04/17/1997DE19537087A1 Remote controlled initialising method especially for telephone or video telephone
04/16/1997EP0768803A1 Scanning protocol for control signals in a cordless telephone
04/16/1997EP0768786A2 Activation of a keyboard lock for a telephone apparatus
04/16/1997EP0768785A2 Telephone apparatus with programming means for dialing of caller ID block code and receiving call waiting caller-ID-signal
04/16/1997EP0768784A2 Circuit arrangement for displaying information characterising the status of the switching network
04/16/1997EP0767936A1 Micro personal digital assistant
04/16/1997CN2252461Y Mobile telephone putting stand
04/16/1997CN2252460Y Telephone anti-theft junction box
04/16/1997CN1147750A Paging system adapted to be called from cordless telephone
04/16/1997CN1147739A Electronically-disinfected telephone
04/16/1997CN1147731A Communications terminal apparatus and display method thereof
04/15/1997US5621791 Ergonomically designed telephone handset
04/15/1997US5621788 Electrical wallbox for telephone devices
04/15/1997US5621724 Echo cancelling device capable of coping with deterioration of acoustic echo condition in a short time
04/15/1997US5621618 Portable electronic apparatus with battery pack secured by first and second sequentially engageable recesses
04/15/1997US5620163 Supporting clip device
04/15/1997US5620120 Fixing apparatus for a portable telephone
04/10/1997WO1997013385A1 A method for maintaining a connection in a mobile communication system during a battery change in a mobile communication device
04/10/1997WO1997013384A1 Cordless telecommunication system with backup interoperability of cordless telecommunication applications, in particular of a gap-specific dect system
04/10/1997WO1997013332A1 A hands free mobile phone unit
04/10/1997WO1997009764A3 Universally interchangeable and modular power supply with integrated battery charger
04/10/1997WO1997008879A3 Terminal
04/10/1997DE4244815C2 Key-pad appts. for e.g. radiotelephone
04/10/1997DE19537308A1 Telephone terminal with cradle switch and button for new telephone service feature
04/10/1997DE19537127A1 Portable program-controlled appts., e.g. mobile telephone
04/10/1997CA2233464A1 Cordless telecommunication system with assured interoperability of cordless telecommunications applications, in particular a gap-specific dect system
04/09/1997EP0767570A2 Equalization of speech signal in mobile phone
04/09/1997EP0767569A1 Method and device for adaptive identification and related adaptive echo canceller
04/09/1997EP0767567A2 Method for the evaluation of call numbers for incoming communication
04/09/1997EP0767566A2 Method and circuit for controlling a display device for visual information
04/09/1997CN2251843Y Cipher switch for telephone set
04/09/1997CN2251842Y Multifunctional telegraphone
04/09/1997CN2251841Y Microphone support
04/09/1997CN2251840Y Multiple extension telephone alarm device
04/09/1997CN1147186A Two band 25 channel cordless telephone system
04/09/1997CN1147184A Paging interface and device
04/09/1997CN1147183A Device for coupling accessories selected by special small exchanger terminal equipment
04/09/1997CN1147174A On-off unit for mobile telephone
04/09/1997CN1147173A Key extension setting method using dual color light emitting diode in key-phone system
04/09/1997CN1147132A Speech reproducing device capable of reproducing long-time speech with reduced memory
04/08/1997US5619684 Method and apparatus for consistent user interface in a multiple application personal communications device
04/08/1997US5619659 System for extending ISA bus without using dedicated device driver software by using E2 P2 interface which provides multiplexed bus signal through standard parallel port connector
04/08/1997US5619569 For surrounding a portion of a telephone coil cord
04/08/1997US5619568 Cordless phone with time-out controlled ringer
04/08/1997US5619564 Tone detector with improved performance in the presence of speech
04/08/1997US5619563 Mnemonic number dialing plan
04/08/1997US5619561 Call-waiting and caller identification with three-way conversations arrangements
04/08/1997US5619553 Method of conducting an intercom communication between two cordless telephone handsets
04/08/1997US5619508 Dual port interface for a computer-based multifunction personal communication system
04/08/1997US5619489 Hand-held telecommunication tester
04/08/1997US5619395 Device for attaching a wireless telephone to a portable computer
04/08/1997CA2105548C Coupling apparatus for telephone handsets
04/08/1997CA2099945C Telephonic headset structure for reducing ambient noise
04/08/1997CA2097806C Electroacoustic transducer mounting apparatus
04/08/1997CA2094616C Compact loudspeaker assembly
04/08/1997CA2079388C Hinge mechanism for foldable electronic apparatus
04/03/1997WO1997012495A1 Mounting arrangement for a noise cancelling microphone
04/03/1997WO1997012479A1 A communication and service terminal
04/03/1997WO1997012470A1 Terminal equipment
04/03/1997WO1997012467A1 Method and system for rapidly generating and transmitting a character sequence using voice frequencies
04/03/1997WO1997012361A1 Telephone network service for converting speech to touch-tones
04/03/1997DE19536580A1 Telecommunication terminal, e.g. DECT base station
04/03/1997DE19536479A1 Telecommunication device with LED display arrangement
04/03/1997DE19536284A1 Telephone device esp. base station for wireless telephone
04/03/1997CA2231826A1 Method and system for the high-speed generation and transmission of a sequence of characters by means of voice frequencies
04/02/1997EP0766442A1 Telecommunication process and device suitable for carrying it out
04/02/1997EP0766440A1 Method and means for replacing an electrically conducting cable by another electrically conducting cable
04/02/1997EP0766439A2 Apparatus informing message received for portable wireless telephone
04/02/1997EP0766438A1 Cordless telephone system with a remote controlled peripheral device
04/02/1997EP0766437A1 Telecommunications apparatus
04/02/1997EP0766436A1 Circuit for a telephone set comprising a light emitting diode power supply
04/02/1997EP0766435A2 Telecommunication terminal with a caller identification function
04/02/1997EP0765565A1 A mobile phone having digital voice storage capability