Patents
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
08/1993
08/19/1993CA2127270A1 Method and apparatus for optimum channel assignment
08/18/1993EP0555233A1 Greeting card with electronic sound recording.
08/18/1993CN2140592Y Telephone volume compression or expansion arrangement
08/18/1993CN2140591Y Wired transceiver
08/18/1993CN1075389A Method and apparatus for optimum channel assignment
08/17/1993US5237608 Telephone station having a housing with electrostatic protection
08/17/1993US5237607 Lighted telephone dial
08/17/1993US5237605 Adjunct interface apparatus for a telephone set
08/17/1993US5237603 Cordless telephone which intermittently monitors predetermined channels from all available channels
08/17/1993US5237602 Remotely-activated telephone system for communication with the disabled
08/17/1993CA2007247C Mounting plate for telecommunications wall outlet
08/17/1993CA1321425C Method and apparatus for synthesizing speech from speech recognition templates
08/12/1993DE4300848A1 Car telephone system connected to car radio - transmits telephone signals to car radio for replay over loudspeaker and display on radio display
08/12/1993DE4203537A1 Cordless telephone with reduced interference - uses same personal code for both base and mobile stations transmitting code simultaneously
08/11/1993EP0555150A2 Data communication apparatus having an auto-calling function
08/11/1993EP0554625A1 Cordless telephone arrangement
08/11/1993EP0554571A1 A two-handset cordless telephone
08/11/1993EP0554349A1 Carry case assembly for a portable electrical device
08/11/1993EP0554293A1 Improved call set-up and spectrum sharing in radio communication on systems with dynamic channel allocation.
08/11/1993CN2140117Y Multifunction automatic adapter for telephone with same-line
08/11/1993CN2140116Y Automatic respose apparatus for telephone
08/10/1993US5235638 Telephone network interface
08/10/1993US5235637 Voice communication link interface
08/10/1993US5235636 Portable telephone set housing having an illuminated switch panel
08/10/1993US5235635 Keypad monitor with keypad activity-based activation
08/10/1993US5235492 Electromagnetic shielding apparatus for cellular telephones
08/10/1993US5234744 Illuminated button key
08/10/1993CA1321252C Side-tone adjusting system and method for key telephone system establishing plural kinds of speaking paths
08/10/1993CA1321239C Animated data display interleaving
08/05/1993DE4202670A1 Telephone exchange operable by visually handicapped person - has personal computer interfaced to enlarged-display monitor and Braille terminal with loudspeaker facility
08/05/1993DE4202383A1 Hand-held transceiver, e.g. cordless telephone - has electronic circuitry enclosed in banana-shaped frame which supports sliding housings of microphone and earphone
08/04/1993EP0554196A1 Telephone line current modulator
08/04/1993EP0554192A1 Power regulator for the loudspeaker of a telephone unit
08/04/1993EP0554180A2 Message sending method and apparatus
08/04/1993EP0553862A2 Portable electronic device having a radio transmit-receive unit and a computer unit
08/04/1993EP0553810A1 Vehicle mounted adaptor for a portable radio transceiver
08/04/1993EP0553771A2 Cordless telephone
08/04/1993EP0553497A2 Frequency down conversion for a two-handset cordless telephone system using offset intermediate frequencies
08/04/1993EP0553487A1 Method for facilitating the operation of telecommunication systems terminals
08/04/1993CN2139760Y Telephone set with double-faced dial
08/04/1993CN2139759Y Electronic puzzle lock for push phone
08/04/1993CN1075041A Automatic remote-controlled remote-display program-controlled telephone with artificial intelligence
08/04/1993CN1075036A Offset down conversion for a two-handset cordless telephone system
08/03/1993US5233650 Telephone support device
08/03/1993US5233649 Telephone ringing module
08/03/1993US5233646 Telephone-operated stereo shut-off device
08/03/1993US5233645 Automatic power breaking circuits for communication equipments
08/03/1993US5233644 Cordless telephone with actuation of off-hook condition by operation of dial key
08/03/1993US5233506 Fastener for housing assembly
08/03/1993CA1321008C Telephone handsets
08/03/1993CA1321002C Phone management server for use with a personal computer lan
07/1993
07/29/1993DE4300705A1 Portable telephone with conducting plate under antenna - has high signal=to=noise ratio due to prevention of interference signal with pseudo-ground-plane
07/29/1993DE4202041A1 Simplification of servicing telecommunication end device - using key to selectively trigger function or display function depending on actuation of key
07/29/1993DE4202040A1 Simplifying servicing of telecommunication terminal devices - displaying possible characteristics for servicing in each state of end device by operation of keyboard button
07/28/1993EP0552834A1 Height adjustment of a telecommunication terminal
07/28/1993EP0552733A2 Telephone apparatus with automatic dialling and a display mode function
07/28/1993CN2139331Y Multifunctional intelligent tester for telephone noise
07/28/1993CN2139330Y Circulator for movable telephone
07/27/1993US5231659 Telephone handset with transducer assembly
07/27/1993US5231658 Telephone privacy device
07/27/1993US5231657 Cordless telephone system that releases hold state of handset after intrusion by another party is detected
07/27/1993US5230481 Cord take-up device
07/27/1993CA1320771C Communication apparatus utilizing a telephone line
07/26/1993CA2087925A1 Method of facilitating the operation of terminals in telecommunications systems
07/23/1993CA2059866A1 Telephone base member and base support member combinations
07/23/1993CA2059859A1 Weighted telephone base
07/22/1993WO1993014589A1 An electronic apparatus having keyless control
07/22/1993WO1993014572A1 Method and apparatus for broken link detect using audio energy level
07/21/1993EP0552005A1 Method and apparatus for noise burst detection in a signal processor
07/21/1993CN2138863Y Controller for the same talking path used by inside telephone and outside telephone
07/21/1993CN2138862Y Enciphered telephone
07/21/1993CN2138861Y Enciphered device of telephone wire
07/21/1993CN2138860Y Automatic sterilization telephone
07/21/1993CN1074571A Communication system link re-establishment protocol
07/21/1993CN1074570A Method and apparatus for noise burst detection in a signal processor
07/21/1993CN1021691C Communications device with voice recognition and movable element control interface
07/20/1993US5230023 Method and system for controlling an external machine by a voice command
07/20/1993US5229721 Micropower amplifier/transducer driver with signal expansion
07/20/1993US5228279 Tray for fruit harvesting system
07/20/1993CA1320603C Communication terminal device
07/14/1993EP0550912A2 Use of a voltage controlled crystal oscillator in the base unit of a two-handset cordless telephone system
07/14/1993EP0550805A2 Identification pairing device for a radio equipment comprising several pieces of apparatus
07/14/1993EP0550554A1 Circuit protection device.
07/14/1993CN1021613C Pronunciation treatmentor with antinoise and process for antinoise
07/13/1993US5228092 Voice transducer
07/13/1993US5228080 Method and apparatus for processing an incoming telephone call signal which may include a data message
07/13/1993US5228079 Method and apparatus for pulse/tone detection and selection
07/13/1993US5228078 Two-wire intercom with hands-free function
07/13/1993US5228075 Telephone capable of selectively accepting callers and enabling partial recognition of callers
07/13/1993US5228073 Call identification display system
07/13/1993US5228026 Technique for time-division duplex cordless telecommunication
07/13/1993US5227956 Spring mounting of multi-layered electronic assemblies
07/13/1993CA1320293C Repertory telephone dialer with remote billing capability
07/13/1993CA1320291C Remote testing of metallic loops with a trans hybrid signal
07/10/1993WO1993014611A1 Improved audio distribution system
07/10/1993CA2105059A1 Audio distribution system
07/08/1993WO1993013604A1 Cellular phone battery packs with and without integral microphone
07/08/1993WO1993013518A1 Voice controlled messaging system and processing method
07/08/1993WO1993002430A3 Electronic travel pass
07/07/1993EP0550179A2 Redirection of calls by a communication terminal