Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 3 - Audible signalling systems; Audible personal calling systems
Patents for G08B 3 - Audible signalling systems; Audible personal calling systems (6,083)
09/1985
09/03/1985CA1192772A1 Electrical synthesis of mechanical bell
09/03/1985CA1192771A1 Electrical simulation of percussive bell
08/1985
08/29/1985WO1985003824A1 Fm subcarrier transmission system
08/20/1985US4536761 Radio paging receiver having display control means
08/06/1985US4534063 Paging receiver and supporting receptacle therefor
08/06/1985US4532996 Automatic fire extinguisher with acoustic alarm
07/1985
07/23/1985US4531115 Remote alarm system
07/09/1985US4528620 Audio light chandelier
07/04/1985WO1985002962A1 Fast recovery bias circuit
06/1985
06/25/1985US4525872 Amplifier
06/11/1985US4523332 Battery saver circuit for use with paging receiver
06/11/1985US4523193 Remote-controlled doorbell signal receiver
06/11/1985US4522146 Burglar alarm system incorporating pneumatically operated components
06/10/1985EP0072850A4 Customer queue control apparatus.
06/04/1985US4521776 Radio paging device including apparatus for preventing undesired device turn-off
05/1985
05/29/1985EP0143104A2 Search device for avalanche victims
05/21/1985US4518961 Communication system message receiving device
05/08/1985EP0139928A1 Small implement with holder arrangement
04/1985
04/11/1985EP0061462A4 Multi-system portable paging device.
04/03/1985EP0135928A2 Pager with automatically illuminated display
04/03/1985EP0135783A2 Radio communication apparatus disabled on reception of a predetermined signal
03/1985
03/26/1985CA1184611A1 Radio pager with display device
03/19/1985US4506384 Synchronized, multitransmitter, single frequency paging system
03/12/1985US4504933 Apparatus and method for producing sound images derived from the movement of people along a walkway
03/12/1985CA1183903A1 Portable radio receiver with high antenna gain
02/1985
02/26/1985CA1183232A1 Emergency device employing programmable vocal warning commands
02/12/1985US4499567 Radio actuated record controller device
01/1985
01/16/1985EP0131012A1 Signalling device.
01/01/1985US4491978 Portable radio receiver with high antenna gain
12/1984
12/25/1984US4490579 Auto-dialing pager receiver
12/19/1984EP0128210A1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission.
12/19/1984EP0128209A1 Method of setting radio transmitters for synchronous radio transmission.
12/11/1984US4488272 Musical door chime preferably also combined with a clock for annunciating the time
12/11/1984US4488145 Resonant sounder device for producing multiple warning sounds
11/1984
11/14/1984EP0124788A1 Radio paging system and receiver therefor
11/13/1984US4482888 Alarming apparatus
10/1984
10/30/1984US4480250 Credit card carrier with alarm
10/23/1984US4479261 Battery saving circuit for paging receiver
10/23/1984US4479124 Synthesized voice radio paging system
10/23/1984US4479114 In a security system
10/17/1984EP0122043A1 Driver's information display for motor vehicles
10/16/1984US4477807 Radio pager with display device
10/11/1984WO1984003973A1 Self-annunciator
10/09/1984US4476469 Means for assisting in locating an object
09/1984
09/25/1984US4473821 Personal acoustic alarm system
09/18/1984US4472069 Minature electronic apparatus having alarm sound generating function
09/11/1984US4471352 Programmable paging encoder
09/04/1984US4470040 Microvibration detector using a single piezoelectric element as both sensor and alarm generator
09/04/1984CA1173924A1 Customer queue control method and system
08/1984
08/29/1984EP0117251A2 Combined bell and telephone intercom installation for doors
07/1984
07/24/1984US4462030 Electronic apparatus with audible annunciator and alarm lamp
07/19/1984WO1984002788A1 Signalling device
06/1984
06/21/1984WO1984002437A1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission
06/21/1984WO1984002436A1 Method of setting radio transmitters for synchronous radio transmission
06/13/1984EP0110506A1 Display pager having memory overflow indication and concurrent message display functions
06/05/1984US4453222 Emergency device employing programmable vocal warning commands
04/1984
04/25/1984EP0106827A2 Anti-forgetting device
04/17/1984US4443790 Broadcast band siren alarm transmitter system for vehicles
03/1984
03/27/1984US4439638 Sound-activated code-controlled detection system for telephones and the like
03/20/1984US4438433 Multiaddress pager with a call storage and priority paging option
03/13/1984US4437088 Electrical simulation of percussive bell
03/07/1984EP0101812A2 Medical use compliance aid
02/1984
02/21/1984US4433363 Audio light chandelier
02/15/1984EP0100650A1 Apparatus and method for generating auditory indicators
01/1984
01/31/1984CA1161500A1 Radio signal receiving apparatus with a security circuitry
01/17/1984US4426639 Timing apparatus
12/1983
12/20/1983US4422071 Paging receiver
12/06/1983US4419668 Combined tone only and tone voice multiple alert pager
12/06/1983US4419016 Device for indicating last medication usage
11/1983
11/29/1983US4418277 Apparatus for collecting, transmitting and processing data stored in code, preferably in bar code
11/22/1983US4417235 Audible alarm network
11/15/1983US4414877 Musical door chime preferably also combined with a clock for annunciating the time
11/01/1983US4413253 Miniature sounder with double tuned cavity
10/1983
10/27/1983WO1983003737A1 Emergency device employing programmable vocal warning commands
10/26/1983EP0092219A1 Battery saving circuit for paging receiver or the like
10/19/1983EP0091695A2 Battery saver circuit for use with paging receiver
10/11/1983US4409590 Building security, communication and control system
10/11/1983US4409588 Miniature sounder with multi-part tuned cavities
09/1983
09/06/1983USRE31370 System for exposure measurement and/or focus detection by means of image sensor
09/06/1983CA1153224A1 Multitone signaling device
08/1983
08/30/1983US4401975 Electrical synthesis of mechanical bell
08/24/1983EP0086255A1 Paging receiver
08/24/1983EP0086254A1 Paging receiver
08/23/1983US4400696 Animal actuated attention attracting apparatus
08/09/1983US4398257 Customer queue control method and system
07/1983
07/12/1983US4393374 Low power siren
07/12/1983US4393373 Piezoelectric audible sound generator
06/1983
06/21/1983US4389638 I.C. Alarm signal generator
06/14/1983US4388614 Automatically sequenced signaling system
05/1983
05/31/1983US4386341 Security apparatus with audible alarm of enhanced urgency
05/10/1983US4383257 Message communication system with message storage
05/10/1983US4383249 Audible warning device for motor vehicles
05/10/1983US4383241 Voice warning system for vehicles
05/03/1983US4382251 Envelope control device for piezoelectric buzzer
04/1983
04/19/1983US4380759 Apparatus to alert a deaf person
03/1983
03/30/1983EP0075123A1 Identification-code reporting system for fully automatic location of a subscriber in a mobile communication network, in particular in a wired communication network
03/29/1983US4378551 Radio signal receiving apparatus with a security circuitry
03/16/1983EP0073878A1 Electronic siren
03/09/1983EP0073197A1 Means for assisting in locating an object
03/02/1983EP0072850A1 Customer queue control apparatus.
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