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Class Information
Number: 340/539.1
Name: Communications: electrical > Condition responsive indicating system > With particular coupling link > Radio
Description: Subject matter where the communication link is by radio waves (i.e., other than light, X, or gamma rays, etc.).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6424927 |
Computer-based real-time transient pulse monitoring system and method |
Jul. 23, 2002 |
| 6420969 |
Appliance alarm system |
Jul. 16, 2002 |
| 6420973 |
Wireless smoke detection system |
Jul. 16, 2002 |
| 6417766 |
Method and apparatus for identifying remote sending units in a tire pressure monitor system of a vehicle using secondary modulation of wheel rotation |
Jul. 9, 2002 |
| 6417781 |
Short range wireless communication using on-board apparatus |
Jul. 9, 2002 |
| 6414598 |
Liquid leak detector and alarm system |
Jul. 2, 2002 |
| 6415219 |
Technique of real-time tracking and management of land-based vehicles of the airport |
Jul. 2, 2002 |
| 6411212 |
Transponder arrangement |
Jun. 25, 2002 |
| 6411213 |
Radio frequency identification tag system using tags arranged for coupling to ground |
Jun. 25, 2002 |
| 6407667 |
Alarm system for forgotten golf club |
Jun. 18, 2002 |
| 6404329 |
Interactive vehicle-security informing and driving-security prompt system |
Jun. 11, 2002 |
| 6404349 |
Remocon locator signal transmitting device provided in apparatus having television tuner |
Jun. 11, 2002 |
| 6405213 |
System to correlate crime incidents with a subject's location using crime incident data and a subject location recording device |
Jun. 11, 2002 |
| 6400265 |
System and method for monitoring security systems by using video images |
Jun. 4, 2002 |
| 6400269 |
Firearm alarm |
Jun. 4, 2002 |
| 6396399 |
Reduction of devices to quiet operation |
May. 28, 2002 |
| 6396403 |
Child monitoring system |
May. 28, 2002 |
| 6396412 |
Passive RF-RF entry system for vehicles |
May. 28, 2002 |
| 6392316 |
Emergency informing apparatus |
May. 21, 2002 |
| 6392544 |
Method and apparatus for selectively activating radio frequency identification tags that are in close proximity |
May. 21, 2002 |
| 6388559 |
Remote control device and a method of using the same |
May. 14, 2002 |
| 6388570 |
Method of sending an emergency message |
May. 14, 2002 |
| 6388571 |
Monitoring device comprising a master machine and slave machine |
May. 14, 2002 |
| 6388579 |
Apparatus and system for remotely updating and monitoring the status of a vehicle |
May. 14, 2002 |
| 6384724 |
Smoke alarm |
May. 7, 2002 |
| 6384740 |
Traffic speed surveillance and control system |
May. 7, 2002 |
| 6385407 |
Accommodating enclosure and management system |
May. 7, 2002 |
| 6380848 |
Structural theft protection for motor vehicles |
Apr. 30, 2002 |
| 6380852 |
Power shut-off that operates in response to prespecified remote-conditions |
Apr. 30, 2002 |
| 6380860 |
Portable wireless cellular fire alarm system apparatus and method |
Apr. 30, 2002 |
| 6377172 |
Specific location public alert receiver |
Apr. 23, 2002 |
| 6377179 |
Personal recovery system |
Apr. 23, 2002 |
| 6377185 |
Apparatus and method for reducing power consumption in physiological condition monitors |
Apr. 23, 2002 |
| 6373389 |
Event driven information system |
Apr. 16, 2002 |
| 6373401 |
Vehicle parking arrangements |
Apr. 16, 2002 |
| 6374081 |
Transmission unit and method for transmitting an information item, in particular for an anti-theft protection system of a motor vehicle |
Apr. 16, 2002 |
| 6369705 |
Alarm monitoring and reporting system |
Apr. 9, 2002 |
| 6369707 |
Specific location public alert receiver |
Apr. 9, 2002 |
| 6369713 |
System and method for seizing a communication channel in a commercially available child monitor |
Apr. 9, 2002 |
| 6370482 |
Method for automated diagnosis of diagnostic objects |
Apr. 9, 2002 |
| 6366198 |
Vehicle security system having transmitter learning and feature programming based on a single-digit user code and related methods |
Apr. 2, 2002 |
| 6362730 |
System and method for collecting vehicle information |
Mar. 26, 2002 |
| 6362736 |
Method and apparatus for automatic recovery of a stolen object |
Mar. 26, 2002 |
| 6363247 |
System and method for a handset-based emergency audible beacon |
Mar. 26, 2002 |
| 6359556 |
Tire air pressure monitoring apparatus and method |
Mar. 19, 2002 |
| 6359558 |
Low power audible alarm relay device for a rolling code security system |
Mar. 19, 2002 |
| 6359570 |
Vehicle-status device and system for remotely updating and locally indicating the status of a vehicle |
Mar. 19, 2002 |
| 6356189 |
Lighting control apparatus for automatic following travel system |
Mar. 12, 2002 |
| 6356195 |
Anti-pilferage system |
Mar. 12, 2002 |
| 6356196 |
Verified receipt, notification, and theft deterrence of courier-delivered parcels |
Mar. 12, 2002 |
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