| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
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| 11/24/1992 | US5166971 Method for speaker recognition in a telephone switching system |
| 11/24/1992 | US5166815 Liquid crystal display and reflective diffuser therefor including a reflection cavity section and an illumination cavity section |
| 11/24/1992 | CA1310745C Method and apparatus for displaying indications of instructions in previously recorded messages |
| 11/24/1992 | CA1310698C Mobile telephone terminal |
| 11/19/1992 | EP0513710A2 Mobile wireless apparatus |
| 11/19/1992 | EP0513695A2 Cordless telephone system |
| 11/19/1992 | DE4143261A1 Receiver for wire or wireless speech or data signal transmission - has signal reception circuit and speech reception circuit for reception circuit output signal processing |
| 11/17/1992 | US5165096 Image communication apparatus having communication with another communication apparatus and a shared communication line |
| 11/17/1992 | US5165095 Voice telephone dialing |
| 11/17/1992 | US5164985 Passive universal communicator system |
| 11/17/1992 | US5164984 Hands-free telephone assembly |
| 11/17/1992 | US5164982 Telecommunication display system |
| 11/17/1992 | CA1310397C Adjustable telephone handset cradle |
| 11/12/1992 | WO1992020168A1 Digital option select system |
| 11/12/1992 | WO1992020167A1 A personal communications device having remote control capability |
| 11/12/1992 | WO1992020048A1 Audio information exchange |
| 11/11/1992 | CN2121775U Telephone automatic answer-back unit without magnetic tape |
| 11/11/1992 | CN2121774U Telephone ringing device with automatic controlling volume |
| 11/11/1992 | CN2121773U Dial of telephone |
| 11/10/1992 | US5163089 Image data transmission apparatus |
| 11/10/1992 | US5163082 Memory management methods and apparatus for digital telephone answering devices |
| 11/10/1992 | US5163079 Analog/digital telephone test set |
| 11/10/1992 | CA1310147C Antenna for cordless telephone system |
| 11/07/1992 | WO1992020181A1 Hinge apparatus having a self-latching hinge shaft for foldable radiotelephones |
| 11/05/1992 | DE4213605A1 Cordless telephone with communication channel connection - blocking speech until normal response to signal transmitted between auxiliary unit and main unit is obtained |
| 11/05/1992 | DE4114702C1 Operating circuit for telephone party line - has respective call recognition units and identifies caller from direction of loop current |
| 11/05/1992 | DE4114437A1 Indicating and transmitting selected characters and images on TV screen - dividing screen into nine sectors that can be remotely selected using nine key panel with layout corresp. to that of telephone dial pad |
| 11/04/1992 | EP0511295A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
| 11/03/1992 | US5161184 Ring-back powered telephone with nonvolatile memory structure |
| 11/03/1992 | US5161181 Automatic number identification blocking system |
| 10/29/1992 | DE4113588A1 Cordless telephone with IR link to stationary appts. - suffices for line=of=sight communication using microphone and earphone installed in handset with rechargeable batteries |
| 10/29/1992 | DE4113542A1 Cordless telephone providing remote control for TV receiver - contains IR transmitter and receiver for signals carried by telecommunication network for interactive-video order placement |
| 10/29/1992 | DE4111300A1 Selection signal generator with memory for telecommunication station - assigns two stored numbers to each key from which memory locations are addressed via changeover switch |
| 10/28/1992 | EP0510809A2 Radio telephone |
| 10/28/1992 | EP0510411A2 Method and apparatus for handling incoming telephone calls |
| 10/28/1992 | CN2120412U Telephone with function of automatic governing bell |
| 10/27/1992 | US5159705 Frequency synthesizer circuit |
| 10/27/1992 | US5159637 Speech word recognizing apparatus using information indicative of the relative significance of speech features |
| 10/27/1992 | US5159628 Hook-off detection device for a telephone handset |
| 10/27/1992 | US5159627 Adaptive ringer for telephone terminal |
| 10/27/1992 | US5159626 Multi-line telephone switching system |
| 10/27/1992 | US5159624 Communication system for transmitting to a portable receiver data indicative of received image or voice signals |
| 10/27/1992 | CA2067044A1 Broadband conference system |
| 10/27/1992 | CA1309524C Telephone card and telephone card-operated telephone |
| 10/22/1992 | DE4208110A1 Answering machine repeating different announcements to telephone lines - uses switching of magnetic heads and reversal of tape direction for messages recorded in opposite directions |
| 10/22/1992 | DE4111331A1 Telephone system programmable or configurable from any station - incorporates central memory accessible in different modes for selective speech link establishment or program data processing |
| 10/22/1992 | DE4110710C1 Telephone receiver stand for vertical or horizontal mounting - has sliding insert for locking transparent cover over information card as well as holding receiver |
| 10/21/1992 | EP0509781A2 Method of rewriting message receive control information stored in radio pager |
| 10/20/1992 | US5157724 Weighted telephone base assembly |
| 10/20/1992 | US5157723 Mounts for articles |
| 10/20/1992 | US5157722 Holder and latching mechanism for a hand-held telephone |
| 10/20/1992 | US5157721 Control circuit for an electrical telephone accessory |
| 10/20/1992 | US5157720 Dialler chip mode signal |
| 10/20/1992 | US5157719 Automatic area code dialing apparatus and methods particularly adapted for cellular or other types of telephone systems |
| 10/20/1992 | US5157717 Portable automated teller machine |
| 10/20/1992 | US5157712 Telephone nuisance call mitigation screening device |
| 10/20/1992 | US5157711 Telephone terminal device |
| 10/20/1992 | US5157710 Radio telephone system and method of registering an ID code therein |
| 10/20/1992 | US5157660 Communication system including portable terminals and fixed terminals |
| 10/20/1992 | US5156242 Helical telephone cord winding device |
| 10/20/1992 | CA1309142C Two-way radio with voice storage |
| 10/20/1992 | CA1308905C Computer-based training for telephone extension users |
| 10/18/1992 | WO1992019065A1 Control apparatus for a mobile radiotelephone |
| 10/15/1992 | WO1992017988A1 Telephone set |
| 10/15/1992 | WO1992017975A1 Confirming identity of telephone caller |
| 10/14/1992 | EP0508944A2 Handset for a card operated car telephone or radiotelephone and telephone card for such a handset |
| 10/14/1992 | EP0508883A1 Control circuit for a loudspeaking telephone |
| 10/14/1992 | EP0508882A1 Telephone set having ring circuit and speech circuit connected to common connection terminals |
| 10/14/1992 | EP0508847A2 An echo canceller |
| 10/14/1992 | EP0508563A1 Illuminated pushbutton keyboard |
| 10/14/1992 | EP0508235A1 Door installation especially door interphone |
| 10/14/1992 | EP0508063A2 Bed-operating apparatus |
| 10/14/1992 | EP0435964A4 Energy saving protocol for a communication system |
| 10/14/1992 | CN2119054U Telephone automatic answering recorder |
| 10/13/1992 | US5155860 Cellular portable telephone battery pack and programmer interface |
| 10/13/1992 | US5155773 Electrodynamic transducer including inset |
| 10/13/1992 | US5155766 Push-button pay telephone dispenser |
| 10/13/1992 | US5155764 Telephone set with on-hook line seizure |
| 10/13/1992 | US5155763 Look ahead method and apparatus for predictive dialing using a neural network |
| 10/13/1992 | US5155761 Automatic call back system and method of operation |
| 10/13/1992 | US5155760 Voice messaging system with voice activated prompt interrupt |
| 10/13/1992 | US5155759 Control method for cordless telephone which displays identities of responding called parties |
| 10/13/1992 | US5155659 Hand-held data collection terminal with battery compartment sealing lid and lid-tethering hand strap |
| 10/13/1992 | CA1308824C Party line converter |
| 10/13/1992 | CA1308803C Telephone handset construction |
| 10/11/1992 | WO1992019049A1 Radiotelephone message processing for low power operation |
| 10/08/1992 | DE4134650C1 Handset esp. for cordless telephone - has integrated loudspeaker at one end and microphone in pivotable flap at other end |
| 10/08/1992 | DE4111192A1 Telephone credit card control system - is coupled to multifrequency receiver and linked to both call cores |
| 10/08/1992 | DE4110964A1 Telephone call re-direction device with remote control - has programmable dialling device controlling switching device for re-directing received calls |
| 10/07/1992 | EP0507482A2 Telephone ring generator with automatic volume control according to the ambient noise level |
| 10/07/1992 | EP0452486A4 Voice transmission system |
| 10/07/1992 | CN2118373U Automatic recording message connecting device for telephone |
| 10/07/1992 | CN2118372U Digital memory recording apparatus for telephone |
| 10/07/1992 | CN1018601B Circuit arrangement for transmission means |
| 10/06/1992 | US5153908 Automatic redial in a key telephone system having different line types |
| 10/06/1992 | US5153906 Personal-servicing communication system |
| 10/06/1992 | US5153590 Keypad apparatus |
| 10/06/1992 | CA1308441C Hands-free telephone |
| 10/03/1992 | WO1992017893A1 Control signal initiator responsive to a hinge position |
| 10/03/1992 | CA2039610A1 Portable dispostable cover for hand-held voice instruments |