Title	Patent Filing Date
Asynchronous quadriphase communications system and method	1974-05-07
Reliable earth terminal for satellite communications	1974-05-31
Bilateral communications system for distributing commerical and premium video signaling on an accountable basis	1973-10-26
Code operated switching device for communications systems and the like	1973-07-05
Emergency communications system	1973-12-18
Dual pilot redundant AFC system for satellite communications system	1973-10-31
Methods and apparatus for interactive communications	1972-10-02
Mount for hospital communications system	1974-10-18
Voice-operated switching circuit for a video communications system	1974-06-05
Transmission line-communications equipment coupling unit having short-circuit and overvoltage protection	1974-01-07
Synchronizing circuit for modems in a data communications network	1974-10-18
Transaction execution system with secure data storage and communications	1974-06-25
Optical communications systems	1975-04-11
Communications systems having a selective facsimile output	1974-03-29
Apparatus and method for controlling a communications terminal	1974-01-28
Method and apparatus for eliminating air flow in communications cables to assist in plug formation	1974-05-17
Communications booth with automatic accounting for telephone and booth usage	1975-02-12
Malfunction detection and changeover apparatus for data communications system	1974-10-29
Fire-alarm audible signaling system permitting selective communications and signaling	1974-06-19
Test system for a T carrier type telephone PCM communications system	1975-01-14
Memory operation for 3-way communications	1975-08-21
Loading coil assemblies for communications cables	1975-09-22
Loading coil case and cable connection for communications cables	1975-09-22
Modem for a suppressed carrier communications system	1974-12-19
Method for interactive communications	1974-04-15
Communications headset with rotatable and tiltable electrical connector	1975-06-26
Communications headset with reversible mounting means	1975-03-05
Polarization compensator for optical communications	1974-04-24
Small modular communications switching system with distributed programmable control	1975-01-10
Emergency civil defense alarm and communications systems	1974-10-07
Dual function laser for space laser communications	1975-03-10
Radio-frequency signaling cable for inductive-carrier communications systems	1973-12-27
Optical communications systems	1974-08-13
Controlling communications between computer devices over common bus	1975-04-21
Multiple block binary synchronous duplex communications system and its method of operation	1975-03-03
Digital data communications system packet switch	1975-05-09
Method for locating conductor breaks during the two stage twisting of a communications cable	1975-01-23
Digital communications system with immunity to frequency selective fading	1974-10-07
Synchronization system for time division multiple access relay communications system	1974-09-09
Communications and control method and apparatus for persons who may have muscular incoordination and/or spasticity	1974-12-24
Communications device arranged to be worn in intimate contact with the body of a user	1975-03-10
Antijam communications system	1959-01-14
Simulated communications system	1975-08-14
Remote unit for a two-way cable communications system	1975-04-25
Acoustical communications headset	1975-03-24
Method of and apparatus for establishing emergency communications in a two-way cable television system	1975-04-25
ELF communications system using HVDC transmission line as antenna	1975-05-19
Pseudo-random sequencing for speech predictive encoding communications system	1975-07-25
Housing for electrical communications and measuring devices	1975-09-04
Aircraft multi-communications system	1975-05-27