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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 |
| 6784787 |
Identification system |
Aug. 31, 2004 |
| 6784800 |
Industrial vehicle safety system |
Aug. 31, 2004 |
| 6784803 |
Apparatus and methods for monitoring and detecting seat belt usage |
Aug. 31, 2004 |
| 6781513 |
Telemetry of diagnostic messages from a mobile asset to a remote station |
Aug. 24, 2004 |
| 6781514 |
Electronic shelf label system |
Aug. 24, 2004 |
| 6778082 |
Smoke detector system for a house |
Aug. 17, 2004 |
| 6778083 |
Electronic locking seal |
Aug. 17, 2004 |
| 6778084 |
Interactive wireless surveillance and security system and associated method |
Aug. 17, 2004 |
| 6774782 |
Radio frequency personnel alerting security system and method |
Aug. 10, 2004 |
| 6774787 |
Electronic locator system and method |
Aug. 10, 2004 |
| 6774795 |
Electronic assistant incorporated in personal objects |
Aug. 10, 2004 |
| 6774802 |
Detection and air evacuation system |
Aug. 10, 2004 |
| 6775523 |
Wireless transmitter and doorbell system |
Aug. 10, 2004 |
| 6775526 |
Modulated input signal filter |
Aug. 10, 2004 |
| 6775545 |
Wireless, ground link-based aircraft data communication system with roaming feature |
Aug. 10, 2004 |
| 6771185 |
Parking guidance and management system |
Aug. 3, 2004 |
| 6768417 |
On-vehicle emergency report apparatus, emergency communication apparatus and emergency report system |
Jul. 27, 2004 |
| 6768424 |
Environmental condition detector with remote fire extinguisher locator system |
Jul. 27, 2004 |
| 6765486 |
Portable alarm system that interfaces with an individual's personal radio |
Jul. 20, 2004 |
| 6762685 |
Wrist portable information apparatus and speech method |
Jul. 13, 2004 |
| 6763249 |
Electronic device and unique information management method |
Jul. 13, 2004 |
| 6759955 |
Doorbell system |
Jul. 6, 2004 |
| 6759961 |
Two-way communication baby monitor with a soothing unit |
Jul. 6, 2004 |
| 6759968 |
Method and apparatus for determining position in a pipe |
Jul. 6, 2004 |
| 6756880 |
Reader and response control system for discrimination between multiple surface acoustic wave identification tags and method of operation thereof |
Jun. 29, 2004 |
| 6756884 |
Modular traffic information system |
Jun. 29, 2004 |
| 6756896 |
Distributed residental alarm system and method therefor |
Jun. 29, 2004 |
| 6756899 |
Portable communication terminal and communication method, antitheft apparatus and antitheft method, and antitheft system |
Jun. 29, 2004 |
| 6756901 |
Multi function electronic personal monitor and radio telemetry cell system |
Jun. 29, 2004 |
| 6753757 |
Actuation device |
Jun. 22, 2004 |
| 6753773 |
Vehicle communication device having switchable operation mode and radio wave intensity checking device |
Jun. 22, 2004 |
| 6753784 |
GIS-based automated weather alert notification system |
Jun. 22, 2004 |
| 6750757 |
Apparatus and method for managing luggage handling |
Jun. 15, 2004 |
| 6750765 |
Tracing of transponder-tagged objects |
Jun. 15, 2004 |
| 6750767 |
Device for monitoring, neutralizing and destruction of securities, documents and other objects |
Jun. 15, 2004 |
| 6750786 |
Systems and methods for internet communication of parking lot information |
Jun. 15, 2004 |
| 6747555 |
Tracking apparatus and associated method for a radio frequency enabled reminder system |
Jun. 8, 2004 |
| 6747556 |
Method and system for locating a portable medical device |
Jun. 8, 2004 |
| 6744364 |
Distance sensitive remote control systems |
Jun. 1, 2004 |
| 6744366 |
Method and apparatus of obtaining security tag operation using local magnetic marker |
Jun. 1, 2004 |
| 6741168 |
Method and apparatus for automated collection and transfer of collision information |
May. 25, 2004 |
| 6737954 |
Event-recorder for transmitting and storing electronic signature data |
May. 18, 2004 |
| 6737961 |
Secure, vehicle key, storage device and associated method |
May. 18, 2004 |
| 6737962 |
Alarm system and kit with event recording |
May. 18, 2004 |
| 6737969 |
Wireless security sensor systems for windows and doors |
May. 18, 2004 |
| 6737973 |
Amplifier modulation |
May. 18, 2004 |
| 6734799 |
Apparatus and method for responding to the health and fitness of a driver of a vehicle |
May. 11, 2004 |
| 6734802 |
Apparatus and method for reducing power consumption in physiological condition monitors |
May. 11, 2004 |
| 6731213 |
Method and apparatus for providing oral health data |
May. 4, 2004 |
| 6727810 |
Method of detecting objects within range of a receiver |
Apr. 27, 2004 |
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