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Class Information
Number: 340/556
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Intrusion detection > Disturbance of electromagnetic waves > Light > Beam
Description: Subject matter wherein the light is gathered and directed into substantially parallel rays.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619505 |
Vehicle direction guide vibration system and method |
Nov. 17, 2009 |
| 7619517 |
Alarm for selectively detecting intrusions by persons |
Nov. 17, 2009 |
| 7616895 |
Safety edge with status and failure recognition |
Nov. 10, 2009 |
| 7573402 |
Dual laser beam guidance and parking device |
Aug. 11, 2009 |
| 7531787 |
Access control device |
May. 12, 2009 |
| 7522044 |
Monitoring process and system |
Apr. 21, 2009 |
| 7511615 |
Self-operated perimeter intrusion detection system |
Mar. 31, 2009 |
| 7485841 |
Multi-optical axis photoelectric sensor |
Feb. 3, 2009 |
| 7482924 |
Cargo container security system communications |
Jan. 27, 2009 |
| 7471203 |
Tamper monitoring system and method |
Dec. 30, 2008 |
| 7466224 |
System for detecting intruders in a populated space |
Dec. 16, 2008 |
| 7466229 |
Device for generating plane beam/conical shape beam and security device using generated plane beam/cone beam |
Dec. 16, 2008 |
| 7456737 |
Detector with blinders |
Nov. 25, 2008 |
| 7453351 |
Delay-based access control apparatus and method |
Nov. 18, 2008 |
| 7450015 |
System and method for ensuring location of an individual within a designated area |
Nov. 11, 2008 |
| 7446302 |
Optical vend-sensing system for control of vending machine |
Nov. 4, 2008 |
| 7442917 |
Method for using a single optical emitter/receiver pair for creating a light curtain using LCD+MEMS technology for beam deflection |
Oct. 28, 2008 |
| 7436316 |
Method and system to detect tampering using light detector |
Oct. 14, 2008 |
| 7414528 |
Apparatus and method for improving ski jump safety |
Aug. 19, 2008 |
| 7411497 |
System and method for intruder detection |
Aug. 12, 2008 |
| 7405676 |
Method and system for detecting with laser the passage by a vehicle of a point for monitoring on a road |
Jul. 29, 2008 |
| 7391303 |
Object alignment device and method |
Jun. 24, 2008 |
| 7388467 |
System and method for determining a state of a door |
Jun. 17, 2008 |
| 7382253 |
Remote dynamic ingress/egress inventory security system |
Jun. 3, 2008 |
| 7378641 |
Device and method for identifying an object in or on a closable opening |
May. 27, 2008 |
| 7375613 |
Passive entry sensor system |
May. 20, 2008 |
| 7373249 |
Automatic mirror stabilization |
May. 13, 2008 |
| 7368702 |
Multi-optical-path photoelectric safety apparatus |
May. 6, 2008 |
| 7362224 |
Thermally sensitive array device for presence detection around automatic doors |
Apr. 22, 2008 |
| 7359640 |
Optical coupling device and method for bidirectional data communication over a common signal line |
Apr. 15, 2008 |
| 7348537 |
Multi-optical axis photoelectric sensor system |
Mar. 25, 2008 |
| 7327253 |
Intruder detection and warning system |
Feb. 5, 2008 |
| 7326914 |
Light grid for measuring an object |
Feb. 5, 2008 |
| 7326910 |
Multiple-optical-axis photoelectric sensor |
Feb. 5, 2008 |
| 7324009 |
Self-aligning waveguide sensor |
Jan. 29, 2008 |
| 7315241 |
Enhanced perception lighting |
Jan. 1, 2008 |
| 7315235 |
First warning system for automotive vehicles |
Jan. 1, 2008 |
| 7301457 |
Security system and perimeter beam tower |
Nov. 27, 2007 |
| 7295111 |
Microwave detection system and method for detecting intrusion to an off-limits zone |
Nov. 13, 2007 |
| 7286052 |
Detector with blinders |
Oct. 23, 2007 |
| 7271722 |
Security sensor device having optical axis adjustment capability |
Sep. 18, 2007 |
| 7268692 |
Apparatus and method for monitoring hand propinquity to plural adjacent item locations |
Sep. 11, 2007 |
| 7265670 |
Surveillance detector |
Sep. 4, 2007 |
| 7262403 |
Safety light grid |
Aug. 28, 2007 |
| 7233251 |
Electronic termite detector |
Jun. 19, 2007 |
| 7190269 |
Fiber optic security system and control method thereof |
Mar. 13, 2007 |
| 7167092 |
Abnormality detector and information apparatus using the same |
Jan. 23, 2007 |
| 7151460 |
Electronic device having a proximity detector |
Dec. 19, 2006 |
| 7151457 |
Detection warning system for caregivers in a home |
Dec. 19, 2006 |
| 7148815 |
Apparatus and method for detecting objects located on an airport runway |
Dec. 12, 2006 |
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