US PATENT SUBCLASS 340 / 912
.~.~ Standby cycling implemented if invalid transmission received or loss of transmission occurs

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

907  DF  TRAFFIC CONTROL INDICATOR {8}
909  DF  .~ Plural intersections under common central station control {5}
912.~.~ Standby cycling implemented if invalid transmission received or loss of transmission occurs

DEFINITION

Classification: 340/912

Standby cycling implemented if invalid transmission received or loss of transmission occurs:

(under subclass 909) Subject matter wherein a local

controller at an intersection assumes control of the traffic indicators of that intersection if an improper instruction is received from the central station.