Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 1 - Substation equipment, e.g. for use by subscribers
Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223)
12/1993
12/15/1993EP0573567A1 Hand-held data capture system with interchangeable modules and interactive control circuits
12/15/1993EP0573411A1 Identifying telephone controller system
12/15/1993EP0403584B1 Process for establishing a connection between a fixed and several mobile elements in a cordless telephone system
12/15/1993CN2149732Y Disposable hygienic film for telephone receiver
12/15/1993CN2149731Y Hygienic film for telephone receiver
12/15/1993CN2149730Y Hanging means for telephone reciver
12/15/1993CN2149729Y Multi-function jumping gun
12/15/1993CN1023178C Automatic arrangement of answering call for phone
12/14/1993US5271059 Method and configuration for forming a line termination of a telephone line
12/14/1993US5271057 Audio processing system for teleconferencing system
12/14/1993US5270488 Shield construction for electrical devices
12/12/1993CA2098042A1 Ic card terminal apparatus and ic card used in the apparatus
12/09/1993WO1993025037A1 Low loss telephone circuit
12/09/1993DE4218653A1 Frequency response modifying appts. for telephone piezoelectric transducer - alters cross=sections of acoustic resonators and apertures for resonance in band between 1.9 and 3 kHz
12/09/1993DE4218571A1 Shock-proof telephone hand set - has ribbed structure and retainer with integral socket, inside mouthpiece
12/09/1993DE4218124A1 Programmable multifrequency audio signal or sequence generator - produces security coded signal from memory in response to keying for acoustic transmission on telephone subscriber line
12/08/1993EP0573358A1 Variable speed voice synthesizer
12/08/1993EP0573301A1 Speech recognition method and system
12/08/1993EP0573192A1 Method and apparatus for muting switching noise while switching between CODECS
12/08/1993EP0572544A1 Integrated application controlled call processing and messaging system.
12/08/1993CN2149069Y Shared wire telephone automatic adapter
12/08/1993CN2149068Y Double-key board telephone
12/08/1993CN2149067Y Multi-function telephone
12/08/1993CN1023050C Receiving and transmitting device for automatic continuous signal of long distance telephone call
12/07/1993US5268959 Telephone long distance redialing apparatus and process
12/07/1993US5268957 Automatic call-back "camp-on" service for communication systems
12/07/1993US5268666 Appliance control system providing out-of-context usage
12/07/1993CA2007141C Housing for a portable radio telephone device
12/06/1993CA2097548A1 Method and device for vocal synthesis at variable speed
12/02/1993DE4317385A1 Car stereo system with removable front panel - has radio transmitter in panel so driver can take panel away on leaving vehicle
12/02/1993DE4317181A1 Telephone circuit with two operational amplifiers serving as differential amplifiers
12/02/1993DE4229450C1 Telecommunication device incorporating microphone, e.g. telephone handset or entryphone - with elastic carrier for microphone attached to support adjacent main or auxiliary sound opening in device housing
12/02/1993DE4217648A1 Pushbutton control unit for hospital patient
12/02/1993DE4216509A1 Mobile data communication device - uses cordless telephone for other applications in non-voice range for adding functions of many devices
12/01/1993EP0572252A1 Wrist-carried radiotelephone
12/01/1993EP0572189A1 Battery charging equipment for a cordless telephone
12/01/1993EP0271535B1 Ergonomic telephone
12/01/1993CN2148444Y 小型电话机 Small telephone
12/01/1993CN1079089A Communications system with extended channels
11/1993
11/30/1993US5267310 Control circuit for automatic elimination of telephone line noise
11/30/1993US5267308 Speed dialling method for a telephone unit
11/30/1993US5267307 Communication apparatus
11/30/1993US5267306 Telephone apparatus with conditional operation
11/30/1993US5267304 Directory assistance system
11/30/1993US5267302 Facsimile system
11/30/1993US5267299 Automatic answering telephone apparatus with device to detect a remote control password
11/30/1993US5267244 Method and an apparatus for establishing the functional capabilities for wireless communications between a base unit and a remote unit
11/30/1993US5267233 Radio set for an FDM-TDM-radio transmission set
11/30/1993US5266950 Programmable keypad monitor
11/30/1993US5266782 Control of a card interface
11/30/1993CA2013374C Authenticated communications access service
11/29/1993CA2097136A1 Directional microphone system
11/29/1993CA2092597A1 Arrangement for obtaining information from a switching system database by an adjunct processor
11/25/1993WO1993023960A2 Telecommunications network interface assembly
11/25/1993WO1993023949A1 Multi-function telecommunications instrument
11/25/1993WO1993023947A1 Telecommunication device operating under an enhanced tdd protocol
11/25/1993WO1993023944A1 Bone conductive ear microphone and method
11/25/1993WO1993023943A1 Slide mount docking system
11/25/1993WO1993023942A1 Unidirectional ear microphone and method
11/25/1993WO1993023322A1 Improved cord take-up device
11/25/1993CA2135175A1 Bone conductive ear microphone and method
11/24/1993EP0571291A1 Telephone line access control device
11/24/1993EP0570776A1 Method and apparatus for controlled credit facility in telephone subset
11/24/1993EP0570622A1 Circuit arrangement for telephone terminal
11/24/1993EP0570538A1 Method and devices of communication by the sense of touch
11/24/1993CN2147697Y One line telephone secret keeping connecting box
11/24/1993CN2147696Y 电话锁 Phone lock
11/24/1993CN1022881C Operation method of communications systems
11/23/1993US5265274 Combined keypad and speaker porting
11/23/1993US5265270 Method and apparatus for providing power conservation in a communication system
11/23/1993US5265265 Wristwatch radio communication device having an improved noise shielding structure
11/23/1993US5265264 Convertible half-to-full duplex radio operation selected by battery
11/23/1993US5265205 Office communication system
11/23/1993US5265175 Data registration and search method
11/23/1993US5265158 Construction of a stand alone portable telephone unit
11/23/1993US5265157 Answer supervision and service selection
11/23/1993US5265154 Telephone controller apparatus
11/23/1993US5265145 Alphanumeric caller identification telephone
11/18/1993EP0570116A1 Data storage and retrieval apparatus
11/18/1993EP0569512A1 Packet transmission system and method utilizing both a data bus and dedicated control lines
11/18/1993DE4218296A1 Telephone line condition monitoring system - determines if telephone is hung up or not, using low impedance voltmeter as opto-coupling in series with zener diode
11/18/1993DE4215656A1 Telephone handset with two=part casing - has electro-acoustic transducer attached directly to earpiece with deformable damping domes in-between
11/18/1993DE4215655A1 Two=part telephone handset - has electroacoustic transformer connected to casing via intermediate high resistance fluid such as oil
11/17/1993CN2146821Y Double-set of telephone switching device
11/17/1993CN2146820Y Bell sound regulating and silencing device for double-bell telephone sets
11/16/1993US5263084 Spontaneous caller identification with call-waiting
11/16/1993US5263082 Text mail system using ISDN and ISDN communication terminal device for use therein
11/16/1993US5263020 Echo canceller
11/16/1993US5262860 Method and system communication establishment utilizing captured and processed visually perceptible data within a broadcast video signal
11/16/1993CA1324448C Microcomputer integrating a digital subscriber terminal for an integrated service digital network
11/16/1993CA1324411C Method of transmitting call information in a short range mobile telephone system and a radio unit for carrying out the method
11/11/1993WO1993022885A1 Process for organising control data for control procedures taking place between at least one terminal and a shared central station in communication systems
11/11/1993WO1993022869A1 Improved telecommunication display system
11/11/1993WO1993022868A1 Method for channel utilization in extended spectrum communication systems
11/11/1993WO1993022862A1 Telephone support device
11/11/1993CA2134758A1 Improved telecommunication display system
11/11/1993CA2112753A1 Method for channel utilization in extended spectrum communication systems
11/10/1993EP0569311A1 Method and system communication establishment utilizing captured and processed visually perceptible data within a broadcast video signal
11/10/1993EP0569061A1 Cordless telephone
11/10/1993EP0569060A2 PABX cordless telephone system
1 ... 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 ... 1683