Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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04/23/1997 | CN2253083Y Adapter improved structure of mobile telephone |
04/23/1997 | CN2253082Y Wireless mobile telephone losing alarming device |
04/23/1997 | CN1148314A sound volume setting device for portable telephone |
04/23/1997 | CN1148313A Method for executing automatic calling |
04/23/1997 | CN1148304A Multi number plan method in key phone system |
04/23/1997 | CN1148303A Button cover holding mechanism of portable telephone |
04/22/1997 | US5623544 Telephone headset interface circuit |
04/22/1997 | US5623542 Combination telephone network interface and cable television apparatus and cable television module |
04/22/1997 | US5623539 Using voice signal analysis to identify authorized users of a telephone system |
04/22/1997 | US5623538 Shared distribution of internal message storage facilities by a plurality of communication terminals |
04/22/1997 | US5623537 Telephone message center |
04/22/1997 | US5623536 Anonymous interactive telephone system |
04/22/1997 | US5623531 Auxiliary power for telephone distribution system |
04/22/1997 | US5623513 Mitigating clipping and quantization effects in digital transmission systems |
04/22/1997 | US5622275 Sectional modular video-intercom control panel for simplified wiring |
04/22/1997 | CA2102504C A method for eliminating acoustic echo in a communication device |
04/22/1997 | CA2090167C Automatic handset-speakerphone switching arrangement for portable communication device |
04/22/1997 | CA2084720C Cordless telephone micro-cellular system |
04/22/1997 | CA2068254C Mobile telephone device wherein an adder supplies a sum of audio and out-of audio band signals to a compressor circuit |
04/20/1997 | CA2188089A1 Telephone unit |
04/17/1997 | WO1997014244A1 Information providing device and portable communication terminal |
04/17/1997 | WO1997014234A2 Point-to-point internet protocol |
04/17/1997 | WO1997014222A1 Personal audio message processor and method |
04/17/1997 | WO1997008881A3 Telecommunication system |
04/17/1997 | DE19635288A1 Telephone reception signal, volume changing method |
04/17/1997 | DE19538096A1 Armband insert to hold multi-functional instruments for watches, manometers, transmitter or receiver |
04/17/1997 | DE19537675A1 Microphone holder for communications terminal handset |
04/17/1997 | DE19537087A1 Remote controlled initialising method especially for telephone or video telephone |
04/16/1997 | EP0768803A1 Scanning protocol for control signals in a cordless telephone |
04/16/1997 | EP0768786A2 Activation of a keyboard lock for a telephone apparatus |
04/16/1997 | EP0768785A2 Telephone apparatus with programming means for dialing of caller ID block code and receiving call waiting caller-ID-signal |
04/16/1997 | EP0768784A2 Circuit arrangement for displaying information characterising the status of the switching network |
04/16/1997 | EP0767936A1 Micro personal digital assistant |
04/16/1997 | CN2252461Y Mobile telephone putting stand |
04/16/1997 | CN2252460Y Telephone anti-theft junction box |
04/16/1997 | CN1147750A Paging system adapted to be called from cordless telephone |
04/16/1997 | CN1147739A Electronically-disinfected telephone |
04/16/1997 | CN1147731A Communications terminal apparatus and display method thereof |
04/15/1997 | US5621791 Ergonomically designed telephone handset |
04/15/1997 | US5621788 Electrical wallbox for telephone devices |
04/15/1997 | US5621724 Echo cancelling device capable of coping with deterioration of acoustic echo condition in a short time |
04/15/1997 | US5621618 Portable electronic apparatus with battery pack secured by first and second sequentially engageable recesses |
04/15/1997 | US5620163 Supporting clip device |
04/15/1997 | US5620120 Fixing apparatus for a portable telephone |
04/10/1997 | WO1997013385A1 A method for maintaining a connection in a mobile communication system during a battery change in a mobile communication device |
04/10/1997 | WO1997013384A1 Cordless telecommunication system with backup interoperability of cordless telecommunication applications, in particular of a gap-specific dect system |
04/10/1997 | WO1997013332A1 A hands free mobile phone unit |
04/10/1997 | WO1997009764A3 Universally interchangeable and modular power supply with integrated battery charger |
04/10/1997 | WO1997008879A3 Terminal |
04/10/1997 | DE4244815C2 Key-pad appts. for e.g. radiotelephone |
04/10/1997 | DE19537308A1 Telephone terminal with cradle switch and button for new telephone service feature |
04/10/1997 | DE19537127A1 Portable program-controlled appts., e.g. mobile telephone |
04/10/1997 | CA2233464A1 Cordless telecommunication system with assured interoperability of cordless telecommunications applications, in particular a gap-specific dect system |
04/09/1997 | EP0767570A2 Equalization of speech signal in mobile phone |
04/09/1997 | EP0767569A1 Method and device for adaptive identification and related adaptive echo canceller |
04/09/1997 | EP0767567A2 Method for the evaluation of call numbers for incoming communication |
04/09/1997 | EP0767566A2 Method and circuit for controlling a display device for visual information |
04/09/1997 | CN2251843Y Cipher switch for telephone set |
04/09/1997 | CN2251842Y Multifunctional telegraphone |
04/09/1997 | CN2251841Y Microphone support |
04/09/1997 | CN2251840Y Multiple extension telephone alarm device |
04/09/1997 | CN1147186A Two band 25 channel cordless telephone system |
04/09/1997 | CN1147184A Paging interface and device |
04/09/1997 | CN1147183A Device for coupling accessories selected by special small exchanger terminal equipment |
04/09/1997 | CN1147174A On-off unit for mobile telephone |
04/09/1997 | CN1147173A Key extension setting method using dual color light emitting diode in key-phone system |
04/09/1997 | CN1147132A Speech reproducing device capable of reproducing long-time speech with reduced memory |
04/08/1997 | US5619684 Method and apparatus for consistent user interface in a multiple application personal communications device |
04/08/1997 | US5619659 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 |
04/08/1997 | US5619569 For surrounding a portion of a telephone coil cord |
04/08/1997 | US5619568 Cordless phone with time-out controlled ringer |
04/08/1997 | US5619564 Tone detector with improved performance in the presence of speech |
04/08/1997 | US5619563 Mnemonic number dialing plan |
04/08/1997 | US5619561 Call-waiting and caller identification with three-way conversations arrangements |
04/08/1997 | US5619553 Method of conducting an intercom communication between two cordless telephone handsets |
04/08/1997 | US5619508 Dual port interface for a computer-based multifunction personal communication system |
04/08/1997 | US5619489 Hand-held telecommunication tester |
04/08/1997 | US5619395 Device for attaching a wireless telephone to a portable computer |
04/08/1997 | CA2105548C Coupling apparatus for telephone handsets |
04/08/1997 | CA2099945C Telephonic headset structure for reducing ambient noise |
04/08/1997 | CA2097806C Electroacoustic transducer mounting apparatus |
04/08/1997 | CA2094616C Compact loudspeaker assembly |
04/08/1997 | CA2079388C Hinge mechanism for foldable electronic apparatus |
04/03/1997 | WO1997012495A1 Mounting arrangement for a noise cancelling microphone |
04/03/1997 | WO1997012479A1 A communication and service terminal |
04/03/1997 | WO1997012470A1 Terminal equipment |
04/03/1997 | WO1997012467A1 Method and system for rapidly generating and transmitting a character sequence using voice frequencies |
04/03/1997 | WO1997012361A1 Telephone network service for converting speech to touch-tones |
04/03/1997 | DE19536580A1 Telecommunication terminal, e.g. DECT base station |
04/03/1997 | DE19536479A1 Telecommunication device with LED display arrangement |
04/03/1997 | DE19536284A1 Telephone device esp. base station for wireless telephone |
04/03/1997 | CA2231826A1 Method and system for the high-speed generation and transmission of a sequence of characters by means of voice frequencies |
04/02/1997 | EP0766442A1 Telecommunication process and device suitable for carrying it out |
04/02/1997 | EP0766440A1 Method and means for replacing an electrically conducting cable by another electrically conducting cable |
04/02/1997 | EP0766439A2 Apparatus informing message received for portable wireless telephone |
04/02/1997 | EP0766438A1 Cordless telephone system with a remote controlled peripheral device |
04/02/1997 | EP0766437A1 Telecommunications apparatus |
04/02/1997 | EP0766436A1 Circuit for a telephone set comprising a light emitting diode power supply |
04/02/1997 | EP0766435A2 Telecommunication terminal with a caller identification function |
04/02/1997 | EP0765565A1 A mobile phone having digital voice storage capability |