| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
|---|
| 07/07/1993 | EP0549926A1 Radio transceiver with additional functions |
| 07/07/1993 | EP0549799A1 System for using telephone cards |
| 07/07/1993 | CN2137844Y Adapter for four telephones with common line |
| 07/07/1993 | CN2137843Y Calling-number displaying device for telephone |
| 07/07/1993 | CN2137842Y Telephone automatic calling device |
| 07/07/1993 | CN2137841Y Computer testing instrument for dials |
| 07/07/1993 | CN1074070A Extending apparatus for telephone line |
| 07/07/1993 | CN1074069A Same-line-different-number telephones |
| 07/06/1993 | US5226083 Communication apparatus for speech signal |
| 07/06/1993 | US5226078 Adjustable integrated/discrete-element line current controller in a telephone set |
| 07/06/1993 | US5226077 Headset amplifier with automatic log on/log off detection |
| 07/06/1993 | US5226076 Directional microphone assembly |
| 07/06/1993 | US5226072 Facsimile machine having recording/reproducing apparatus |
| 07/06/1993 | CA1320016C Telephone handset with full page visual display |
| 07/06/1993 | CA1320014C Electronic device |
| 07/06/1993 | CA1319975C Retractable cellular antenna |
| 07/06/1993 | CA1319958C Portable radio apparatus having battery saved channel scanning function |
| 07/06/1993 | CA1319957C2 Subscriber unit for wireless digital telephone system |
| 07/01/1993 | DE4222694A1 Cordless telephone with IR link between handset and fixed station - has variable-frequency oscillator at each end for modulation and level control of respective IR transmitters |
| 07/01/1993 | DE4142742A1 Telephone call diversion appts. independent of contractual regulation - incorporates signal transmission controller responsive to ringing- and dialling-tone detectors and dual-tone multifrequency receiver |
| 06/30/1993 | EP0549128A2 Appliance control system providing out-of-context usage |
| 06/30/1993 | EP0548221A1 Radio telephone system supporting busy and out-of-range functions. |
| 06/30/1993 | CN2137412Y Movable phone stand |
| 06/29/1993 | US5224158 Terminal apparatus |
| 06/29/1993 | US5224155 Change-over system for automatic answering telephony and facsimile reception |
| 06/29/1993 | US5224152 Power saving arrangement and method in portable cellular telephone system |
| 06/29/1993 | US5224151 Automatic handset-speakephone switching arrangement for portable communication device |
| 06/29/1993 | US5224146 Radio telephone system for calling a party at predetermined invervals until a response is received |
| 06/29/1993 | US5223950 Data communication apparatus |
| 06/29/1993 | US5223780 Mobile telephone battery power supply unit with power detection and discharge circuit |
| 06/29/1993 | CA1319751C Display for modular dictation/transcription system |
| 06/24/1993 | WO1993012618A1 Portable messaging and scheduling device with homebase station |
| 06/24/1993 | WO1993012604A1 Multi-purpose modular cordless telephone |
| 06/24/1993 | DE4142341A1 Noise protection filter for electrical equipment - having symmetrically driven line, contains chokes connected into line vias contact arrangement |
| 06/24/1993 | DE4141843A1 Signal reproduction control for music and speech signals - identifying music or speech signal characteristic by signal analysis to adjust volume and-or tone setting |
| 06/23/1993 | EP0547994A1 Precut sheet material for three-dimensional telephone housing |
| 06/23/1993 | EP0547973A1 Digital terminal to be connected to a digital subscriber termination, digital subscriber termination and communication protocol between the terminal and the termination |
| 06/23/1993 | EP0547464A1 Assembly system for packaging of multi-layered electronic assemblies |
| 06/23/1993 | EP0547301A2 Low-loss power feeding circuit for telephone apparatus |
| 06/23/1993 | EP0547138A1 Noise-cancelling handset. |
| 06/23/1993 | EP0547067A1 Alarm and test system for a digital main line. |
| 06/23/1993 | CN2137058Y Telephone urgent calling device |
| 06/23/1993 | CN2137057Y Scanning frequency equivalent meter for accurately determining loudness evaluation value |
| 06/23/1993 | CN2137056Y Testing device for telephone communication circuit |
| 06/23/1993 | CN2137055Y Telephone |
| 06/23/1993 | CN2137054Y Portable speaking controller for long-distance call |
| 06/22/1993 | US5222251 Method for eliminating acoustic echo in a communication device |
| 06/22/1993 | US5222132 Support bracket for telephone |
| 06/22/1993 | US5222131 Telephone protector including removable fuse holder |
| 06/22/1993 | US5222127 Portable telephone |
| 06/22/1993 | US5222123 Registration and automatic call redirecting for cordless telephone systems |
| 06/22/1993 | US5222121 Voice recognition dialing unit |
| 06/22/1993 | US5222119 Communication system and a method, to detect a power exposure of a communication line |
| 06/22/1993 | CA2019000C Cellular telephone responsive to service availability for operating on different cellular telephone systems |
| 06/20/1993 | WO1993012583A1 Radio transceiver having fixed calling capacity |
| 06/20/1993 | CA2103662A1 Radio transceiver having fixed calling capacity |
| 06/17/1993 | DE4141382A1 Cable free comfort telephone with different extra functions added - allows additional function devices such as extra information inputs memories processors and outputs to be integrated in or connected to hand set |
| 06/17/1993 | DE4141001A1 Hang up hook for hand set of coin box telephone - has U=shaped hook arm pivotably attached to wall for movement between two operating positions which acts on switch inside hand set |
| 06/17/1993 | DE4140905A1 Transmitter with controller for controlling switches - has charging capacitor and switching transistor conductive after reaching predetermined threshold current at control terminal |
| 06/16/1993 | EP0546625A1 Device for the transmission of dialling pulses |
| 06/16/1993 | EP0546571A1 Amplifier circuit for electret condenser microphone |
| 06/16/1993 | EP0545941A1 An ear protector. |
| 06/16/1993 | EP0545937A1 Telephone call control device |
| 06/16/1993 | CN2136560Y Automatic recording and loudspeaking device for telephone |
| 06/16/1993 | CN2136559Y Voice-operated automatic dialing device for telephone |
| 06/16/1993 | CN2136558Y Electronic deodorizing and sterilizing device for telephone |
| 06/16/1993 | CN2136557Y Attracted disc moving telephone support |
| 06/15/1993 | US5220601 Keypad status reporting system |
| 06/15/1993 | US5220599 Communication terminal apparatus and its control method with party identification and notification features |
| 06/15/1993 | US5220598 Telephone |
| 06/15/1993 | US5220597 Dialing apparatus for power failure extension telephone set of key telephone system |
| 06/15/1993 | US5220595 Voice-controlled apparatus using telephone and voice-control method |
| 06/15/1993 | US5220594 Cordless telephone system having a telephone answering machine function |
| 06/15/1993 | US5220561 Data transfer between high bit rate buses via unshielded low bit rate bus |
| 06/15/1993 | CA2021794C Connector assembly for electronic devices |
| 06/12/1993 | CA2085047A1 Infrared telephone with handset and base unit |
| 06/10/1993 | WO1993011643A1 Telephone circuit to control off-hook status during receipt of caller-id signal |
| 06/10/1993 | WO1993011586A1 Gel filled electrical connector |
| 06/09/1993 | EP0545670A2 Holder for a portable telephone |
| 06/09/1993 | EP0545088A2 Radio telephone system with data communication capability and radio communication method |
| 06/09/1993 | EP0545066A1 Telephone answering apparatus including power failure protection |
| 06/09/1993 | EP0544667A1 Dialing editing method and apparatus |
| 06/09/1993 | EP0511295A4 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
| 06/09/1993 | DE4138935A1 Cordless telephone number assignment system using data card - uses card reader supplying number read from card to memory with successive introduction of card to indicate number of mobile stations |
| 06/09/1993 | CN1073062A Mixed signal processing system and method for powering same |
| 06/09/1993 | CN1021184C Private telephone automatic calling receiving method and equipment |
| 06/08/1993 | US5218640 Voice recording and reproducing apparatus |
| 06/08/1993 | US5218634 Ringer assembly |
| 06/08/1993 | US5218633 Enhanced access to telecommunications network |
| 06/08/1993 | US5218630 Method for channel utilization in extended spectrum communication systems |
| 06/08/1993 | US5218628 Radio communication apparatus with means for requesting and displaying status of wired line |
| 06/08/1993 | US5218616 Telephone line tester |
| 06/08/1993 | US5218319 Differential amplifier and active filter using the same |
| 06/08/1993 | US5218187 Hand-held data capture system with interchangeable modules |
| 06/02/1993 | EP0544100A1 Method for enabling controlled listening-in to cordless telephone |
| 06/02/1993 | EP0544016A1 Printer for identification mark |
| 06/02/1993 | EP0543895A1 A computer keyboard |
| 06/01/1993 | US5216711 Telephone handset including directional microphone module |
| 06/01/1993 | US5216709 Electronic device for providing information related to an input telephone number |
| 06/01/1993 | US5216517 Communication terminal apparatus |