| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
|---|
| 06/24/1986 | CA1206641A1 Non-integer programmable counter |
| 06/24/1986 | CA1206638A1 Cordless telephone |
| 06/17/1986 | US4596051 Optical interface to an electrical central office |
| 06/17/1986 | US4595798 Telephone number input terminal devices |
| 06/17/1986 | US4595795 Automatic sensitivity switching circuit for a cordless telephone |
| 06/17/1986 | CA1206283A1 Subscriber telephone system |
| 06/11/1986 | EP0184005A2 Processor-assisted communication system using tone-generating telephones |
| 06/11/1986 | EP0137806A4 Speakerphone control circuit. |
| 06/10/1986 | US4594478 Transmitter assembly for a telephone handset |
| 06/10/1986 | CA1205934A1 Telecommunications interface with protector modules |
| 06/05/1986 | WO1986003360A1 Rotatable electrical connector for coiled telephone cords |
| 06/05/1986 | WO1986003353A1 Acoustic signal attenuator |
| 06/04/1986 | EP0183268A2 Cradle for the receiver of a motor car telephone |
| 06/04/1986 | EP0183098A1 Method and apparatus for answering telephone calls |
| 06/03/1986 | US4593159 Base plate for telephone set base |
| 06/03/1986 | US4593158 Telephone subscriber station with a pivotably attached chassis and upper housing |
| 06/03/1986 | US4593157 Directory interface and dialer |
| 06/03/1986 | US4593155 Portable telephone ID code transfer system |
| 05/28/1986 | EP0182393A2 Excluder device for telephones installed in parallel |
| 05/27/1986 | US4591671 Telephone having built-in test capability for use in key telephone system |
| 05/27/1986 | US4591670 Echo canceller and echo suppressor for frequency divisional attenuation of acoustic echoes |
| 05/27/1986 | US4591666 Protection circuitry for subscriber's telephone circuit equipped with repertory memory |
| 05/27/1986 | US4591665 Method and apparatus for providing call tracing service |
| 05/27/1986 | US4591664 Multichannel interactive telephone answering apparatus |
| 05/27/1986 | US4591663 Servo-linearized opto-electronic analog interface |
| 05/27/1986 | US4591661 Portable cordless telephone transceiver-radio receiver |
| 05/27/1986 | CA1205230A1 Electronic hold circuit |
| 05/27/1986 | CA1205229A1 Electronic hold release circuit |
| 05/20/1986 | US4590620 Optical telephone |
| 05/20/1986 | US4590337 Rotatable electrical connector for coiled telephone cords |
| 05/14/1986 | EP0181130A2 Push-button switch structure for telephone or the like |
| 05/14/1986 | EP0181051A2 Telephone apparatus with speaker amplifier |
| 05/14/1986 | EP0180684A2 Acoustic coupler for data transmission |
| 05/13/1986 | US4588866 Modular wall phone latching mechanism |
| 05/13/1986 | US4588863 System for facilitating professional telephone communication |
| 05/13/1986 | US4588862 Visual display network interface |
| 05/13/1986 | US4588858 Differential amplifiers and method of differentially driving a two-wire line circuit |
| 05/13/1986 | US4588857 Message aggregating dictation system |
| 05/13/1986 | CA1204497A1 Telephone handset for a telephone set |
| 05/10/1986 | CN85108248A Number re-dialing apparatus in multifunctional telephone system |
| 05/07/1986 | EP0180178A2 Cordless telephone system |
| 05/06/1986 | CA1204238A1 Digital echo canceller for cancelling an echo signal in a frequency divisional manner |
| 05/06/1986 | CA1204236A1 Wireless telephone system with intercom signalling and auxiliary station |
| 05/06/1986 | CA1204235A1 Wireless telephone system with high level dial pulse signalling |
| 05/06/1986 | CA1204234A1 Wireless telephone system with combination filter/oscillator circuits |
| 04/29/1986 | US4585909 Transmission circuit for a DTMF-telephone set |
| 04/29/1986 | US4585908 Data entry and display control circuit |
| 04/29/1986 | US4585907 Speech synthesized telephone answering circuit |
| 04/29/1986 | US4585903 Cordless telephone |
| 04/23/1986 | EP0178403A2 Method for directly calling subscriber lines in telecommunication exchanges, especially in telephone exchanges |
| 04/23/1986 | EP0178393A2 Process for the manufacture of electric apparatuses comprising a basis unit and one or more detachable units |
| 04/22/1986 | US4584702 Noise cancelling telephone transmitter insertable in telephone handset receptacle |
| 04/22/1986 | US4584440 Telephone disconnect apparatus |
| 04/22/1986 | US4584436 Door-mounted combination intercom and viewer |
| 04/22/1986 | US4584435 Miniature telephone answering device with single head carriage |
| 04/22/1986 | US4584434 Additional system for automatic information reception terminal device utilizing telephone circuit |
| 04/16/1986 | EP0178111A2 Data handling system |
| 04/16/1986 | EP0178016A1 Telephone terminal with modular architecture and modules for such a terminal |
| 04/15/1986 | US4583221 Synchronization system for key telephone system |
| 04/15/1986 | US4582962 Telephone mounting stabilizer and note board facility |
| 04/15/1986 | US4582958 Secretary telephone system |
| 04/15/1986 | US4582957 Call interceptor |
| 04/15/1986 | US4582956 Method and apparatus for displaying at a selected station special service information during a silent interval between ringing |
| 04/15/1986 | CA1203332A1 Latching relay hold circuit for a telephone instrument |
| 04/15/1986 | CA1203331A1 Latching relay hold release circuit for a telephone instrument |
| 04/09/1986 | EP0177405A1 Radiotelephonic system, especially for a motor vehicle |
| 04/09/1986 | EP0176855A2 Cordless telephone apparatus |
| 04/09/1986 | CN85201014U Subset of local carrier wave telephone circuit |
| 04/08/1986 | US4581495 Modular telephone housing |
| 04/08/1986 | US4581494 Telephone interface-test device |
| 04/08/1986 | US4581490 Wall telephone assembly |
| 04/08/1986 | US4581488 Last number redial device |
| 04/08/1986 | US4581485 Data storage system for telephone answering machine |
| 04/02/1986 | EP0176459A1 Ear phone, telephone handset and head phones for correcting individual hearing deficiencies |
| 04/02/1986 | EP0176215A2 Improvements to cordless telephones |
| 04/02/1986 | EP0176104A2 Telephone equipment |
| 04/01/1986 | US4580009 Telephone mouthpiece modular coupler |
| 04/01/1986 | US4579310 Guides for organizing wires |
| 04/01/1986 | CA1202741A1 Ringing signal generator employing delta modulation power amplification techniques |
| 04/01/1986 | CA1202713A1 Transmitter assembly for a telephone handset |
| 03/27/1986 | WO1986001960A1 Call diverter function in an early care telephone system |
| 03/26/1986 | EP0175375A2 Telephone |
| 03/26/1986 | EP0174947A1 Communication system having dynamically assigned station set buttons |
| 03/25/1986 | US4578545 Contact and terminal for telephone transmitter |
| 03/25/1986 | US4578540 Telecommunications systems |
| 03/18/1986 | US4577072 Telephone equipment tester |
| 03/18/1986 | US4577068 Adaptive modular telephone cradle for a communication terminal |
| 03/18/1986 | US4577063 Ring delay override for telephone answering system |
| 03/12/1986 | EP0173701A1 A circuit board assembly, a handset and a method of producing a circuit board assembly for a handset |
| 03/11/1986 | US4575588 Universal telephone test apparatus |
| 03/11/1986 | US4575587 Signal wrap for transducer fault isolation |
| 03/11/1986 | CA1201833A1 Transmission circuit for an electronic telephone set |
| 03/11/1986 | CA1201809A1 Method of an apparatus for generating a plurality of electric signals |
| 03/05/1986 | EP0173365A1 Method for pairing a base and a mobile part of a telephone, and device for carrying out this method |
| 03/04/1986 | US4574272 Tone ringer for telephone sets and other telecommunications apparatus |
| 03/04/1986 | CA1201543A1 Mounting for a dial in a telephone set base |
| 03/04/1986 | CA1201542A1 Line use indicator for telephone sets sharing a single line |
| 02/27/1986 | WO1986001358A1 Method for identifying calling or called terminals and device for implementing such a method |
| 02/25/1986 | US4572930 Multiple switch using a rotary actuator |
| 02/25/1986 | CA1201233A1 Telephone hookswitch |