Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 340/920
Name: Communications: electrical > Traffic control indicator > Intersection normally under local controller > Controller responsive to traffic detectors > Plural cross highways at intersection each have traffic detectors > Density determines split
Description: Subject matter wherein the number of vehicles detected per unit time or area determines the percentage of a complete cycle allowed for a particular indicator.










Sub-classes under this class:

Class Number Class Name Patents
340/921 Extension of time 5


Patents under this class:

Patent Number Title Of Patent Date Issued
8471728 Traffic management systems and methods of informing vehicle operators of traffic signal states Jun. 25, 2013
8253592 External adaptive control systems and methods Aug. 28, 2012
8237589 Adjusting system and method for traffic light Aug. 7, 2012
8212688 Traffic signals control system Jul. 3, 2012
7663505 Traffic management device and system Feb. 16, 2010
6587779 Traffic surveillance method and vehicle flow control in a road network Jul. 1, 2003
5646639 Display device for vehicles Jul. 8, 1997
4370718 Responsive traffic light control system and method based on conservation of aggregate momentum Jan. 25, 1983











 
 
  Recently Added Patents
Intermediate film for laminated glasses, and laminated glass
Synergistic fungicidal interactions of 5-fluorocytosine and other fungicides
Switchgear and method for operating switchgear
Face recognition through face building from two or more partial face images from the same face
Actuator, actuator structure and method of manufacturing actuator
Electric power supply system and electric power supply system for motor vehicle
Analog-to-digital converter control using signal objects
  Randomly Featured Patents
A reinforced tubular seal
Fluorescent articles having multiple film layers
Embroidering machine
Method of synthesizing tetrahydrobiopterin
Method for making die boards, and materials and apparatus for practicing the method
Low friction multilayer pad
X-ray CT apparatus and method of generating an image
Sewing machine for decoratively stitching a cricket ball
Nitrogen-containing organic cosolvents for aqueous ink jet inks
Methods for manufacturing hinges having a highly inorganically filled matrix