|
US
Patents Issued
US
4,065,081
AC Track Circuit
US
4,451,018 Track Receiver using
Hall Sensor
US
4,498,650 Microprocessor-based DC
coded Track Circuit
US
4,611,775 Microprocessor-based
Switch Control
US
4,711,418 Radio-Based Signaling
for railroads (Spacerail)
US 4,728,063
Broken Rail Detection
US
4,994,969 Automatic yard
Operation
US
5,092,544 Radio-Based
Highway-Rail Grade Crossing Control
US
5,098,044 Radio-Based
Highway-Rail Grade Crossing Control
US
5,271,584 Pulsed DC Code Signal
System
US
5,364,047 Communication-Based
Train Control for Transit (Atlas)
|
