| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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| 09/28/1993 | CA1322602C Packet information field data format |
| 09/28/1993 | CA1322580C Local area network system |
| 09/23/1993 | DE4208572A1 Cradle-switch circuit for wall-mounted telephone subscriber's appts. - includes bistable relays for bridging of hook switch during predetermined interval or until second lifting of handset |
| 09/23/1993 | DE4208290A1 Mobile telephone subscriber's appts. - includes separate handset removable from mobile base station to which it is linked by radio or IR signal path |
| 09/23/1993 | DE4206830A1 Telecommunication installation with two sets of function keys - enables calls to be made from subsidiary installation via main switchboard to subscriber in public network |
| 09/22/1993 | EP0561736A1 Method and device for winding and unwinding printed products in an imbricated formation |
| 09/22/1993 | EP0561124A1 Device for establishing forgery attempts of a chip card reader/writer |
| 09/22/1993 | CN1076569A Data communication apparatus |
| 09/22/1993 | CN1076565A Method and apparatus for broken link detect using |
| 09/21/1993 | US5247704 Burst mode transmitter/receiver unit |
| 09/21/1993 | US5247702 Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit |
| 09/21/1993 | US5247700 Cellular telephone with pager |
| 09/21/1993 | US5247572 Apparatus for control of storing information into dial memories in a telephone set |
| 09/21/1993 | US5247570 Telephone answering system and apparatus for direct caller selection of a party line extension |
| 09/21/1993 | US5247567 Portable-to-portable talk system for cordless telephone |
| 09/21/1993 | US5247565 Cellular telephone with keypad controller |
| 09/21/1993 | US5246383 Gel filled electrical connector |
| 09/20/1993 | CA2090929A1 Method and apparatus for winding and unwinding printed products in scale formation |
| 09/18/1993 | CA2086905A1 Device for detecting attempts at fraud on an apparatus for reading and writing on a chip card |
| 09/16/1993 | WO1993018605A1 Hybrid fiber in the loop telephony system |
| 09/16/1993 | WO1993018604A1 Headset amplifier with automatic log on/log off detection |
| 09/16/1993 | WO1993018594A1 A monitoring phone system |
| 09/16/1993 | WO1993018591A1 Portable communications device |
| 09/16/1993 | DE4226423C1 Ringing signal display circuit for 2-wire telephone line - uses angularly offset sensor wires around outside of telephone line with evaluation of obtd. signal differences |
| 09/16/1993 | DE4207631A1 Wireless infrared transmission between telephone appts. and handset - transmitting in opposite directions during non-consecutive quarter time frames sepd. by empty or signalling slots. |
| 09/16/1993 | DE4207205A1 Alternating transmitter for analog and/or digital signals - has base station and associated opposite station as transceiver units |
| 09/16/1993 | CA2131905A1 A monitoring phone system |
| 09/16/1993 | CA2117555A1 Hybrid fiber in the loop telephony system |
| 09/15/1993 | EP0560446A2 Telecommunication apparatus with a hands-free telephone device |
| 09/15/1993 | EP0560334A1 Change-over switch for telephone connection |
| 09/15/1993 | EP0560246A1 Interface circuit for telecommunication apparatus |
| 09/15/1993 | EP0560237A2 Method for the synchronisation of base radio stations in a radio telephone system |
| 09/15/1993 | EP0560217A1 Method and device for check and attainment of authorization for access |
| 09/15/1993 | EP0559962A2 Silencing apparatus |
| 09/15/1993 | EP0559957A2 Radio transceiver for FDM-TDM transmission system |
| 09/15/1993 | EP0559948A2 Device for connecting accessory apparatus to a telephone set |
| 09/15/1993 | CN2142246Y Sound-control dialing telephone |
| 09/14/1993 | US5245654 Solid state isolation device using opto-isolators |
| 09/14/1993 | US5245653 Memory card connectable to a telephone |
| 09/14/1993 | US5245651 Communication apparatus for storing abandoned call information |
| 09/14/1993 | US5245649 Selective call receiver capable of being coupled to a telephone answering machine |
| 09/14/1993 | CA2000978C Shutter mechanism for telephone directory |
| 09/13/1993 | CA2090379A1 Communication interface circuit |
| 09/12/1993 | WO1993018592A1 Hinge assembly |
| 09/09/1993 | DE4206933A1 Combined telephone and data or facsimile transmission modem |
| 09/08/1993 | EP0559047A1 Future blocking of incoming telephone calls |
| 09/08/1993 | EP0558812A2 Base station and portable telephone linked by infrared light |
| 09/08/1993 | EP0558737A1 Telephone line test set with a speakerphone for communications |
| 09/08/1993 | CN2141954Y Omnibearing sterilization telephone |
| 09/08/1993 | CN2141953Y Rotary device for table telephone |
| 09/07/1993 | US5243660 Directional microphone system |
| 09/07/1993 | US5243646 Fast redial system for a telephone |
| 09/07/1993 | US5243642 Telephone call management device |
| 09/07/1993 | US5243640 Integrated cellular telephone and vehicular audio system |
| 09/07/1993 | US5242767 Battery housing assembly with integral limited travel guide rails |
| 09/03/1993 | CA2090536A1 Future blocking of incoming telephone calls |
| 09/02/1993 | WO1993017512A1 Radio telephone |
| 09/01/1993 | EP0557886A2 Data communication apparatus and card to be used with such an apparatus |
| 09/01/1993 | EP0557813A1 System of digital-speech-memory for a telecommunication system |
| 08/31/1993 | US5241691 Method of optimizing the transmission of idle beacon messages and a communications system using the method |
| 08/31/1993 | US5241684 Portable automatic telephone dialer |
| 08/31/1993 | US5241593 Telephone and telephone cord retraction device, and method of making |
| 08/31/1993 | US5241592 Telephonic handset housing assembly for cordless telephone |
| 08/31/1993 | US5241591 Telephone system having a dial data changeover switch |
| 08/31/1993 | US5241590 Telephone dialing apparatus |
| 08/31/1993 | US5241589 System and method for implementing telephone dialing rules |
| 08/31/1993 | US5241583 Portable radio telephone which terminates an electronic keypad lock function upon sensing an incoming call |
| 08/31/1993 | US5241410 Enhanced infrared-connected telephone system |
| 08/29/1993 | CA2090378A1 Data communication apparatus |
| 08/26/1993 | DE4203652A1 Defining of user surface of touch sensitive display - has user defined blocks on screens that contain multiple functions stored in memory |
| 08/25/1993 | EP0556970A1 Memory module reader suitable for a radio telephone |
| 08/25/1993 | EP0556929A1 Circuit for coupling a telephone exchange and a paging system calling exchange |
| 08/25/1993 | EP0556744A1 Device for limiting the working voltage for mechanical switches in telephony |
| 08/25/1993 | EP0556742A1 Acoustic feedback suppression device particularly for auxiliary ringers in plug-in telephone systems |
| 08/25/1993 | EP0556544A1 Circuit arrangement for connecting a speech or data terminal to a communications line |
| 08/25/1993 | EP0556215A1 Selective call receiver having a received message indicator. |
| 08/25/1993 | CN2141153Y Automatic recording telephone responder |
| 08/25/1993 | CN1075582A Infrared telephone with handset and base unit |
| 08/24/1993 | US5239700 Multi-choice information system for a motor vehicle |
| 08/24/1993 | US5239586 Voice recognition system used in telephone apparatus |
| 08/24/1993 | US5239580 Modem-telephone coupler |
| 08/24/1993 | US5239579 Adaptive amplifier circuit |
| 08/24/1993 | US5239578 Noise cancelling apparatus for a telephone handset |
| 08/24/1993 | US5239576 Communication apparatus |
| 08/24/1993 | US5239574 Voice processing system |
| 08/24/1993 | US5239573 Telephone terminal incorporating speech synthesizer for enhanced communication |
| 08/24/1993 | US5239571 Radio telephone device capable of automatically reconnecting an abnormally terminated communication line |
| 08/24/1993 | US5239521 Wrist telephone |
| 08/24/1993 | US5239386 Communication apparatus used with a card-like device |
| 08/24/1993 | US5239300 Operating unit for manual control of a plurality of functions in different apparatuses |
| 08/24/1993 | US5239294 Method and apparatus for authenication and protection of subscribers in telecommunication systems |
| 08/24/1993 | US5239286 Battery alarm system |
| 08/24/1993 | CA1321666C Telephone answering service with integrated voice and textual message storage |
| 08/24/1993 | CA1321633C Communication box assembly |
| 08/22/1993 | WO1993017513A1 Fastener assembly for telephone housing and substrate |
| 08/22/1993 | WO1993017285A1 Fastener for housing assembly |
| 08/19/1993 | WO1993016567A1 Method and apparatus for optimum channel assignment |
| 08/19/1993 | WO1993016550A1 Self-powered portable telephone with cdi disk storage medium |
| 08/19/1993 | WO1993016542A1 Message recording machine |
| 08/19/1993 | DE4204473A1 Recording and reproducing terminal appts. for audio information network - enables recorded audio signals to be transmitted over wire or fibre for reception at distant terminal |