Assignee
TFT INC
US7 patents
Top patents by PatentIndex Score
US5995553ANov 30, 1999
Encoder/decoder for emergency alert system
TFT INC121 citations90
US5917887AJun 29, 1999
Emergency alert communication system wherein emergency messages are received by a radio frequency receiver and routed to a telephone device
TFT INC58 citations90
US4710970ADec 1, 1987
Method of and apparatus for generating a frequency modulated ultrahigh frequency radio transmission signal
TFT INC31 citations87
USRE34540EFeb 8, 1994
Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
TFT INC8 citations69
US5065450ANov 12, 1991
Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
TFT INC13 citations69
US5046124ASep 3, 1991
Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
TFT INC12 citations69
USRE34499EJan 4, 1994
Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system
TFT INC0 citations48