| Patents for H04M 1 - Substation equipment, e.g. for use by subscribers (168,223) |
|---|
| 08/03/1988 | EP0276996A2 Microphone |
| 08/03/1988 | EP0276992A2 Automatic dialer for accessing public network directly or via local network |
| 08/03/1988 | EP0276615A1 Wiring device of a very low voltage telephone and/or computer network in a building |
| 08/03/1988 | EP0276403A2 Telephone, particularly a radiotelephone |
| 08/03/1988 | CN88200501U Push button magneto telephone set |
| 08/02/1988 | US4761806 Method and circuit for setting dialing data in a wireless telephone |
| 08/02/1988 | CA1240083A1 Computer access security device |
| 08/02/1988 | CA1240021A1 Reprogrammable call forwarding device |
| 07/28/1988 | WO1988005620A1 Method of controlling the connection of cordless telephone equipment |
| 07/27/1988 | EP0275996A2 Handset for a telephone apparatus with a lid covering the keyboard |
| 07/27/1988 | CN88100244A Unmanned computerized communication system |
| 07/27/1988 | CN88100119A Telephone having receive call indicating function and mute/light key |
| 07/27/1988 | CN87205411U Electronic cross-calling door bell |
| 07/26/1988 | US4760593 Personal alarm system providing handsfree operation |
| 07/26/1988 | US4760592 Wire tap detection device with passive testing |
| 07/26/1988 | CA1239719A1 Dial tone detector |
| 07/21/1988 | DE3701060A1 Cradle switch |
| 07/20/1988 | EP0275193A2 Telephone having receive call indicating function and mute/light key |
| 07/19/1988 | US4759058 Shoulder rest for a telephone |
| 07/19/1988 | US4759056 Personal-servicing communication system |
| 07/19/1988 | US4759052 Telephone answering device using voice synthesizer for outgoing message |
| 07/19/1988 | US4757955 Telephone cord wind-up apparatus |
| 07/14/1988 | WO1988005238A1 Answering machine equipped with automatic translation function |
| 07/14/1988 | WO1988005237A1 Answering machine |
| 07/13/1988 | CN87212682U Door bell for dialogue |
| 07/12/1988 | US4757553 Communication system with portable unit |
| 07/12/1988 | US4757528 Thermally coupled information transmission across electrical isolation boundaries |
| 07/12/1988 | US4757521 Synchronization method and apparatus for a telephone switching system |
| 07/12/1988 | US4756175 Clamp mechanism of an electronic apparatus |
| 07/12/1988 | CA1239209A1 Communication system having abbreviated dialing access |
| 07/07/1988 | DE3643829A1 Arrangement for using a desk-top telephone as a wall-mounted telephone |
| 07/06/1988 | EP0273436A2 Modularly expandable desktop keyboard |
| 07/05/1988 | US4756022 Integrated circuit for the transmission of telephone signals |
| 07/05/1988 | US4756021 Telephone set |
| 06/30/1988 | WO1988004871A1 Talking device |
| 06/30/1988 | DE3643840A1 Telephone set with a dialling component |
| 06/30/1988 | DE3643839A1 Circuit arrangement for a telephone subscriber station with a control device |
| 06/30/1988 | DE3643707A1 Call-barring device for a telephone terminal which can be connected to the telephone network and which uses a multi-frequency dialling method |
| 06/29/1988 | EP0272741A2 Circuit arrangement for connection and control in a cordless telephone |
| 06/29/1988 | EP0272715A1 Subscriber apparatus |
| 06/29/1988 | EP0272436A2 Table and wall telephone |
| 06/29/1988 | EP0272435A2 Arrangement for using a table telephone as a wall telephone |
| 06/29/1988 | CN87209668U Fragrance sterilization telephone |
| 06/28/1988 | US4754486 Motorcycle stereo audio system with VOX intercom |
| 06/28/1988 | US4754484 Convertible handset/headset for telephone |
| 06/28/1988 | US4754476 Premises page/intercom system utilizing telephone set component |
| 06/28/1988 | US4754475 Calling line tracing system and identification detector |
| 06/28/1988 | US4754473 Remote telephonic data transcribing system |
| 06/28/1988 | US4754472 Telecommunication systems |
| 06/28/1988 | US4754455 Telephone signal transmission device |
| 06/28/1988 | CA1238737A1 Hook switch actuator assembly |
| 06/28/1988 | CA1238736A1 Case |
| 06/28/1988 | CA1238732A1 Universal telephone test apparatus |
| 06/23/1988 | EP0255523A4 Method and apparatus for synthesizing speech from speech recognition templates. |
| 06/23/1988 | DE3642625A1 Circuit arrangement for protecting electronic apparatuses against overloading |
| 06/23/1988 | DE3641763A1 Selector device for a telephone for connecting a plurality of telephone stations to a common telephone line |
| 06/22/1988 | EP0272068A2 Microphone circuit |
| 06/22/1988 | EP0271993A2 Surge protection for telecommunications terminals |
| 06/22/1988 | EP0271948A2 Telecommunication circuit |
| 06/22/1988 | EP0271947A2 Gain control circuit |
| 06/22/1988 | EP0271946A2 Telecommunication device and circuits used therein |
| 06/22/1988 | EP0271535A1 Ergonomic telephone. |
| 06/21/1988 | US4752961 Microphone arrangement |
| 06/21/1988 | US4752949 Corded/cordless telephone |
| 06/16/1988 | WO1988004502A1 Apparatus in a loudspeaking telephone set for supplying power to an amplifier connected to the loudspeaker |
| 06/15/1988 | EP0271280A2 Arrangement for use in a computer |
| 06/15/1988 | CN87203406U Ultraviolet sterilized device for telephone microphone |
| 06/14/1988 | US4751729 Ring code recorder |
| 06/14/1988 | US4751728 Telephone call monitoring, metering and selection device |
| 06/14/1988 | US4751724 Automatic telephone line fault locator |
| 06/07/1988 | US4750204 Prestone phone lock |
| 06/07/1988 | US4750203 Subscriber telephone set with amplified loudspeaker reception with reduction of gain in the case of an insufficient power supply |
| 06/07/1988 | CA1237800A1 Communication system with voice announcement means |
| 06/01/1988 | EP0269554A2 Circuit arrangement preventing calls |
| 06/01/1988 | EP0269550A2 Microphone boom hinge |
| 06/01/1988 | EP0269364A2 Apparatus and method for inputting telephone dialling commands to a telephone communication system |
| 06/01/1988 | EP0269296A2 Dial tone detector |
| 06/01/1988 | EP0269096A2 Support with a hollow shape for a cordless telephone |
| 06/01/1988 | EP0268739A2 Method for recording and transmitting telephone numbers |
| 06/01/1988 | EP0268717A1 Means for controlling a telephone apparatus |
| 06/01/1988 | EP0268667A1 A telephone line monitoring system. |
| 06/01/1988 | DE3738511A1 Method and arrangement for acknowledging telecommunication signals and device for connecting this arrangement |
| 05/31/1988 | US4748689 Fiber-optic distribution system for broadband signals |
| 05/31/1988 | US4748671 Microphone boom hinge |
| 05/31/1988 | US4748663 Loudspeaking telephone instrument |
| 05/31/1988 | US4748662 Apparatus having a dial calling function |
| 05/31/1988 | US4748656 Personal computer--as an interface between a telephone station set and a business communication system |
| 05/31/1988 | US4748651 Multiline transmission line test receptacle with provision for testing each line |
| 05/31/1988 | US4748620 Time stamp and packet virtual sequence numbering for reconstructing information signals from packets |
| 05/31/1988 | US4748574 Integrated executive desk unit |
| 05/26/1988 | EP0165294A4 Portable telephone id code transfer system. |
| 05/25/1988 | CN87203244U Hygienic mouthpiece for telephone |
| 05/24/1988 | US4747145 Earcup suspension for headphone |
| 05/24/1988 | US4747136 Rest for the receiver of an automobile telephone |
| 05/24/1988 | US4747135 Pop up telephone |
| 05/24/1988 | US4747134 Pay telephone hook switch assembly |
| 05/24/1988 | US4747133 For announcing an incoming telephone call |
| 05/24/1988 | US4747131 Dial tone detector |
| 05/24/1988 | US4747129 Telephone ring registering device |
| 05/24/1988 | US4747128 Telephone privacy protector |