Tone signal detectors
Tongue activated communications controller
Touch control identification system with portable encoder
Tourist information pager
Toy with remotely controlled security alarm
Toy with remotely controlled security alarm
Track to train communication systems
Tracking system
Trainable RF receiver for remotely controlling household applian
Trainable RF system for remotely controlling household appliance
Trainable RF system for remotely controlling household appliance
Trainable RF transceiver
Trainable RF transmitter having expanded learning capabilities
Trainable RF transmitter including attenuation control
Trainable transceiver and method for learning an activation sign
Trainable transceiver including a dynamically tunable antenna
Trainable transmitter having improved frequency synthesis
Trainable transmitter security circuit
Trainable transmitter with interrupt signal generator
Trainable transmitter with transmit/receive switch