| Patents for G08B 3 - Audible signalling systems; Audible personal calling systems (6,083) |
|---|
| 12/20/1988 | US4792789 Alarm driving signal generator |
| 12/14/1988 | CN88202591U Help-calling apparatus for coronary heart disease |
| 12/07/1988 | CN88205244U Door lock with acoustics device |
| 11/22/1988 | US4786901 Paging receiver |
| 11/22/1988 | US4786889 Battery casing for a paging receiver |
| 11/17/1988 | WO1988009104A1 Improved pager based information system |
| 11/17/1988 | WO1988009091A1 Pager based information system |
| 11/09/1988 | EP0290415A1 Sound surge detector for alerting headphone users |
| 11/08/1988 | US4783654 Radio paging system capable of transmitting common information and receiver therefor |
| 11/01/1988 | US4780934 Clip mechanism for pager |
| 10/19/1988 | CN88210299U Auto-informative letter and newspaper box |
| 10/18/1988 | CA1243358A1 Radio paging system capable of transmitting common information and receiver therefor |
| 10/12/1988 | EP0061462B1 Multi-system portable paging device |
| 10/11/1988 | US4777474 Alarm system for the hearing impaired |
| 10/05/1988 | EP0284705A1 Method for producing a sound signal |
| 10/05/1988 | CN86201180U Apparatus for waking-up |
| 10/04/1988 | US4775083 Portable radio carrying case |
| 09/06/1988 | US4769642 Paging receiver with LPC speech synthesizer |
| 09/06/1988 | US4769641 Pager receiver capable of avoiding an unpleasing interruption of a displayed message |
| 08/31/1988 | EP0280319A2 Radio pager receiver capable of readily checking whether or not memory backup is correct |
| 08/30/1988 | US4768022 Apparatus for generating auditory indicators |
| 08/24/1988 | CN88201310U Electronic alarm for baby urinating |
| 08/24/1988 | CN86210858U Ultrashort wave sound emitter for car overtaking |
| 08/23/1988 | US4766434 Selective paging receiver with message display |
| 08/23/1988 | CA1241067A1 Pager |
| 08/16/1988 | US4764928 Method and apparatus in radio reception for avoiding storing a message more than once |
| 08/10/1988 | EP0277798A2 Speaker Driver |
| 08/10/1988 | CN87209768U Alarm arrangment to defence stealing of electricity |
| 08/10/1988 | CN87106165A Method of speech information bulletin and system used in factory |
| 08/09/1988 | US4763111 Door closer having sound generating function |
| 08/04/1988 | DE3702123A1 Device for protecting high-voltage transmission masts |
| 08/02/1988 | CA1239997A1 Battery saving signal generating circuit |
| 07/26/1988 | US4759309 Passive personal alarm device |
| 07/19/1988 | US4759022 Method and receiver for receiving messages sent by radio |
| 07/14/1988 | WO1988005247A1 System for over-the-air reprogramming of communication receivers |
| 07/13/1988 | EP0274279A2 Holding structure for a paging receiver having extra functions |
| 07/05/1988 | US4755816 Battery saving method for a selective call radio paging receiver |
| 06/28/1988 | US4754423 Electronic selector and method for selecting desired functions and levels |
| 06/22/1988 | CN87213938U Warner for intercepted automobile |
| 06/21/1988 | US4752951 Method of providing location dependent person locator service |
| 06/15/1988 | EP0271267A2 Piezo-electric signalling device |
| 06/07/1988 | US4749991 Turn off protection circuit |
| 06/01/1988 | EP0268902A1 Coded remote control with a code-changing facility |
| 05/24/1988 | US4747122 Mobile paging call back system and related method |
| 05/24/1988 | US4745859 Apparatus for repelling birds or beasts |
| 05/17/1988 | US4745408 Radio paging system and receiver therefor |
| 05/11/1988 | CN86202192U Serial frequency automatic coding warning system |
| 05/03/1988 | US4742352 Radio communication system equipped with electronic appliance |
| 05/03/1988 | US4741074 Detachable belt clip suitable for automated assembly |
| 04/27/1988 | EP0265064A2 Multi-alert radio paging receiver |
| 04/26/1988 | US4740788 Method of providing location dependent visitor dispatching service |
| 04/21/1988 | DE3735295A1 Verfahren zur uebermittlung von informationen in einem personenrufsystem Process for about communication of information in a paging system |
| 04/20/1988 | CN87203942U Electronic watch with electric field alarm |
| 04/13/1988 | CN87214624U Synthetical station talker for public traffic with chinese |
| 04/13/1988 | CN87207132U Electric policedog |
| 04/12/1988 | CA1235214A1 Programmable switching assembly |
| 04/05/1988 | CA1234876A1 Radio communication apparatus disabled on reception of a predetermined signal |
| 03/30/1988 | CN87204208U Multifunctional intense-light alarm electric torch |
| 03/29/1988 | US4734694 Pager |
| 03/23/1988 | CN87210526U Music warner for human body feces and urine |
| 03/23/1988 | CN87208503U Multifunctional baby's diaper warner |
| 03/09/1988 | EP0258896A2 Voice message announcing method and system for plant |
| 03/09/1988 | CN87207228U Automatic device for calling help when acute disease happens |
| 03/01/1988 | CA1233527A1 Multiple alert pager |
| 02/23/1988 | US4727358 Substitute warning device for automobile seat belt reminder alarm |
| 01/26/1988 | CA1232026A1 Pager with automatically illuminated display |
| 01/20/1988 | EP0252939A1 Paging receiver with lpc speech synthesizer. |
| 01/12/1988 | US4719454 Personal alarm |
| 01/12/1988 | US4719452 Audio signal generator |
| 01/12/1988 | CA1231390A1 Radio paging system and receiver therefor |
| 01/12/1988 | CA1231389A1 Display pager having memory overflow indication and concurrent message display functions |
| 01/12/1988 | CA1231383A1 Two-way personal message system with extended coverage |
| 12/29/1987 | CA1230929A1 Multiple frequency message system |
| 12/26/1987 | CN87206072U Flashlight type alarm set with a pullswitch |
| 12/23/1987 | DE3620732A1 Device for emitting signals |
| 12/23/1987 | CN86209935U Monitor for sleeping children |
| 12/17/1987 | EP0231259A4 Nationwide radio paging system. |
| 12/16/1987 | CN86209547U Spontaneous generated urban electricity transfer reminder |
| 12/16/1987 | CN86208077U Multi-purpose electronic alarm |
| 12/15/1987 | US4713808 Watch pager system and communication protocol |
| 12/15/1987 | US4713659 Pager with display |
| 12/08/1987 | US4712093 Audible audio level indicator |
| 12/02/1987 | EP0247601A2 Paging receiver having audible and vibrator annunciating means |
| 11/24/1987 | US4709402 Method of synchronizing radio transmitters for synchronous radio transmission |
| 11/24/1987 | US4709401 Method of setting radio transmitters for synchronous radio transmission |
| 11/19/1987 | EP0245709A1 Calling device for a building and persons including a name list |
| 11/11/1987 | EP0131012B1 Signalling device |
| 11/11/1987 | CN87102451A Sound signal synchronized driving device |
| 11/11/1987 | CN86211068U Infusion autocontrol emergency alarm |
| 11/10/1987 | US4706272 Paging communication system |
| 11/04/1987 | EP0244103A2 Paging receiver with a capability of receiving message data |
| 10/20/1987 | US4701759 Call reminder for a radio paging device |
| 10/20/1987 | US4701750 Motorcycle sound simulator for non-motorized vehicle |
| 10/07/1987 | EP0239914A2 An electronic loudspeaker system having a harmonious sound with multiple adjustable sound levels |
| 10/07/1987 | EP0239810A2 Pager receiver helpful for effective use of call numbers |
| 10/06/1987 | US4698619 Variable frequency fire tone generator |
| 10/06/1987 | CA1227835A1 Paging communication system |
| 09/24/1987 | DE3625773C1 Method and device for scaring birds |
| 09/23/1987 | EP0238097A2 Multi-system paging device with power conservation |
| 09/01/1987 | US4691382 Battery saving signal generating circuit |