Signal theory (Telecommunication)

Top CBS Executives Meet
Manfred Schroeder (right) subjectively evaluates the quality of the reverberated sound
General Electric cathode-ray television picture tube, Type ZP-1001
The first ultra-low-noise antenna and receiver combination
Radio Sextant
Aerial view of Bell Labs in Murray Hill
Sound model of digit five
Sound model of digit nine
Eugene Gordon and Conway LeCraw
Bell Labs Sound Experiments
Bell Labs Sound Experiments
Theodore Maiman studies a laser's main parts
Horton and Morrison observe television receivers
Horton, Mathes and Stoller with television receivers
One of the first guided missiles by Charles Squire
Mr. Levitt (left) and William Swann (right) on television
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