Patents
Patents for G08B 5 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied (9,297)
01/1992
01/07/1992CA1294001C Pager based information system
12/1991
12/24/1991US5075684 Selective call message management
12/24/1991CA1293533C Paging device
12/18/1991EP0461849A2 Paging receiver with a time piece function
12/17/1991US5073843 Phosphorescent key pad
12/12/1991WO1991019411A1 Lighting control system
12/07/1991CA2043957A1 Electronic display element for electronic display device
12/03/1991US5070436 Signal vest, colored, reflective, and lighted, worn by persons seen on and nearby roadways and highways and other needed areas
12/03/1991US5070327 Using only ac power
12/03/1991CA1292781C Paging terminal apparatus with message storage and retransmission capability and method therefor
11/1991
11/28/1991WO1991018482A1 Method and apparatus for monitoring the status of tables
11/28/1991WO1991018374A1 Visibility aid
11/27/1991EP0458563A2 A multi-function telephone apparatus
11/26/1991CA1292518C Pager having user selectable time controlled functions
11/19/1991US5066929 Circuit for producing four indications on a bicolor light emitting diode having two leads
11/19/1991CA1292120C Scanned electromechanical alphanumeric display
11/14/1991DE4015195A1 Signal selective radio device - produces call signal which can be transmitted or received and its origin identified from digital code
11/12/1991US5065423 Paging system with registration mode
10/1991
10/31/1991WO1991016771A1 Portable graphic display having integral display movement tracking
10/31/1991WO1991016513A1 Hand-rail for use in ships, buildings, etc.
10/31/1991DE4013879A1 Passive infrared movement indicator - has circuit for producing high quality light flashes and improves optical signal emitted by alarm so it can be seen over greater distances
10/30/1991EP0454612A1 Signalling systems for automobile vehicles
10/29/1991US5061921 Remote-controlled message sign
10/29/1991CA1291537C2 Portable communications receiver with separated information presentation means and improved battery saving function
10/22/1991US5059952 Survivor locator light with water-activated switches
10/22/1991US5059943 Control unit for indicating the status of a procedure
10/22/1991CA1291219C Paging receiver capable of reminding a user of an important message event
10/18/1991CA2080827A1 Hand-rail for use in ships, buildings, etc.
10/17/1991WO1991015835A1 Thai-english radio paging system
10/17/1991WO1991015266A1 Marker balloon
10/09/1991EP0450426A1 Method for generating a signal to attract attention
10/09/1991EP0450301A1 Device for monitoring the direction indicator on a towed vehicle
10/09/1991EP0450192A2 Central centre for vehicle auxiliary devices
10/05/1991CA2039671A1 Method for generating an attention attracting signal
10/02/1991DE4010194A1 Procedure and device for electronic detection vehicles - uses vehicle mounted antenna with electronic chip and memory to store transmissions
10/02/1991CN1014198B Power conservation method and apparatus for portion of synchronous information signal
10/01/1991US5054051 Autodial from database in an electronic wristwatch
09/1991
09/24/1991US5052049 Paging receiver with continuously tunable antenna
09/24/1991CA1289623C Radio message display system
09/18/1991EP0446248A1 Power conservation method and apparatus for a portion of a synchronous information signal.
09/17/1991US5049874 Paging receiver with external memory means
09/17/1991US5049870 Graphic display panel
09/10/1991US5046605 Contact lens container holder
09/04/1991EP0444479A2 Value-added service for a communication system with wired and/or wireless channels
09/04/1991EP0360803A4 Portable communications receiver with separate information presentation means and improved battery saving function
09/03/1991US5045833 Apparatus and system for alerting deaf persons
09/03/1991US5045700 Headgear-mounted indicator for ionizing radiation
09/03/1991CA1288495C Aircraft service system
09/03/1991CA1288494C Passenger vehicle service system
08/1991
08/27/1991US5043855 Light to assist in locating a party
08/27/1991US5043721 Paging accessory for portable information/computing devices
08/27/1991US5043718 Selective paging system and paging receiver therefor
08/22/1991DE4005448A1 Matching two personal data groups - selectively exchanging data via terminals which perform data group comparison
08/21/1991EP0442853A2 Self-contained apparatus for emergency lighting incorporating alarm systems for fire, gas and the like
08/14/1991EP0441385A1 Pager terminal apparatus and radio pager system employing the same
08/14/1991CN2082611U Ultrasonic vision protector for reading or writing
08/13/1991US5039985 Paging apparatus with improved message display function
08/13/1991US5039984 Paging receiver with programmable areas of reception
08/08/1991WO1991011889A1 Pager equipped computer
08/08/1991WO1991011875A1 Autodial from database in an electronic wristwatch
08/01/1991DE4002095A1 Optical-acoustic alarm installation - leads to emergency exit whose direction is indicated by gradation of signal intensity or frequency from one transmitter to next
07/1991
07/16/1991US5032834 Status display system
07/09/1991US5030948 Multiple characteristic sensitive addressing schema for a multiple receiver data processing network
07/09/1991CA1285994C Acknowledge back pager with apparatus for controlling transmit frequency
07/02/1991US5029237 Radio receiver frequency control system
07/02/1991US5028911 Smoke-alarm activated
07/02/1991CA1285542C Optical guidance system and apparatus
06/1991
06/27/1991WO1991009504A1 Multiple format signalling protocol for a selective call receiver
06/26/1991EP0434231A2 Paging accessory for portable computing devices
06/19/1991EP0433049A2 Multistation indicator system
06/19/1991EP0373176A4 Paging receiver with dynamically allocated display rate
06/18/1991US5025252 Paging receiver with over-the-air characterization of call signal processing
06/13/1991DE4018072A1 Portable electric lamp with reflector and battery - is secured with clip to clothing of user or to exterior of obstacle in poor visibility
06/11/1991US5023905 Pocket data receiver with full page visual display
06/11/1991US5023607 Pedestrian crossing safety apparatus
06/06/1991DE3940007A1 Light signalling beacon for airports, roads, etc. - has its own independent power source with multiple photo-elements
06/05/1991EP0430869A1 Baton for signalling
05/1991
05/28/1991US5018963 Pulsating gas powered light source
05/28/1991CA2029346A1 Signalling baton
05/21/1991US5017837 Indicator lamp system
05/16/1991WO1991001033A3 Method and apparatus for modifying synthesized sound signals
05/15/1991EP0427158A1 Battery saving method for portable pager
05/15/1991EP0426966A2 Radio pager and radio pager system
05/14/1991US5016273 Dual communication mode video tape recorder
05/08/1991DE3936483A1 Attaining blinking sequency for at least two lights - installed in series with activated lamp sending control signal to following one
05/08/1991CN1012599B Alarm compatible with night vision goggles
05/07/1991US5014046 Display pager with supplemental display means
05/02/1991WO1991006078A1 Battery-powered flashing superluminescent light emitting diode safety warning light
04/1991
04/30/1991US5012235 Paging receiver with continuously tunable antenna and RF amplifier
04/24/1991EP0423200A1 Method of and apparatus for acknowledging and partially answering a paging signal.
04/16/1991US5008661 Electronic remote chemical identification system
04/16/1991US5007368 Emergency ski altering device and method
04/11/1991DE3933071A1 Detector system for presence of individuals - uses IR sensor to generate signal activating display panel e.g. waiting sign for customer in queue
04/11/1991DE3932550A1 Individual data local transmission system e.g. for shopping trolleys - uses overhead transmitters communicating to mobile trolleys with display devices
04/09/1991US5007105 Portable
04/09/1991US5006971 Light-weight
04/09/1991CA1282834C Portable communications receiver with separate information presentation means and improved battery saving function
04/04/1991WO1991004640A1 Selective call receiver
04/04/1991DE3931690A1 Identification device for overboard ship passenger - uses automatically released signalling balloon with tethering line acting as electrical supply lead
04/02/1991US5005013 Pager with a display function
1 ... 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93