Tamper-proof two-way cable system
Technique for measuring a duration of signaling pulses in a tele
Technique for obtaining symbol timing for equalizer weights
Technique for tracking amplitude fades for multi-amplitude signa
Telecommunication line switching circuit
Telephone line security apparatus
Telephone privacy system
Teletype character modification unit
Teletype mixer apparatus for coding and decoding
Teletypewriter privacy system
Television receiver with tuner capable of receiving air and CATV
Television remote control device
Thermal message printer
Threshold correction system in FSK transmissions
Time division multiplied speech scrambler
Time-frequency scrambler
Time-multiplex modular switching network for automatic exchange
Timing recovery for an automatically equalized data modem
Tracking arrangement
Transistor integrated device, particularly usable for coding pur