Matches 1 - 34 out of 34
Match Document Document Title
4396801 Multiplex communication system employing pulse code modulation  
1. In a multichannel communication system in which the intelligence waves are transmitted by pulse code modulation, means for producing a plurality of series of pulses interleaved in their time of...
3934078 Key generating system  
1. In a key pulse generating circuit for producing key pulses varying in amplitude in highly irregular manner, said pulses occurring at a given rate, means to generate high speed off-on pulses at a...
3924074 Pulse position modulation key signaling system  
1. In a signaling system, a source of signal waves, a source of key waves, a transmission line or channel, means to allot periodic time intervals on said line to the transmission of signal...
2750566 Telemetering transmission system  
2736007 Title is not available  
2731512 Multichannel communication systems  
2721899 Pulse communication system  
2680153 Multichannel communication system  
2658189 Signaling system based on orthogonal functions  
2655652 Multiplex time division telephone systems  
2627553 Multichannel signaling system  
2610295 Pulse code modulation communication system  
2610254 Mixed modulation in pulse intercommunication systems  
2597038 Two-way electric pulse communication system  
2587734 Modulator tube and circuits  
2570207 Synchronizing arrangement for multiplex electrical pulse communication systems  
2557581 Remote control system  
2546974 Pulse multiplex signaling system  
2542991 Pulse modulation communication system  
2541932 Multiplex speech interpolation system  
2541076 Multichannel pulse communicating system  
2527558 Two-way pulse multiplex communication system  
2524789 Multichannel time modulated pulse receiving system  
2523703 System for transmitting signal modulated pulses  
2520534 Multiplex pulse repeater  
2517579 Multichannel pulse receiving system  
2498688 Demodulator and channel separator system  
2497411 Pulse transmission system  
2474244 Amplitude modulated time modulated pulse system  
2472705 Time division carrier multiplex telephone system  
2468703 Chronometric electronic radiosonde system  
2468085 Two-way pulse multichannel system employing cathode-ray tube modulators  
2429608 Multichannel pulse communication system  
2616977 Title is not available  
Matches 1 - 34 out of 34