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
Method and an apparatus for processing an audio signal
Snapshot isolation support for distributed query processing in a shared disk database cluster
Extract of Vanilla planifolia
Rupture resistant system
System and method for producing statistically valid assay means and ranges for quality control materials
Tropoelastin derivatives
System and method for text input with a multi-touch screen
  Randomly Featured Patents
Heat mode recording material and method for producing driographic printing plates
Coated vehicle wheel and method
Heteroaryl-substituted 1,3-dihydroindol-2-one derivatives and medicaments containing them
Chalk line apparatus with a spool configured to avoid cavitation
Jet deflecting sprinkler head
Organic EL display device and method of manufacturing the same
Coal combustion method and apparatus
Planetary transmissions with clutched input and a stationary member
Method of performing dynamic printhead maintenance firing in an ink jet printer
Electrical cordset with integral signal conditioning circuitry