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The
Motorola Teleplayer was the first commercially available video cassette/cartridge
playback system for entertainment and business. The 7" EVR (Electronic
Video Recording) cassette/cartridge used for playback was manufactured by
CBS. Two magnetic stripes provided stereo sound, and inexpensive black-and-white
8.75mm silver-halide film (lenticular process) provided images with color
information encoded on a separate track. The signal was transferred to the
film by electronic beam recording and was played back on a TV. One track
was for the luminance and the other was for either the chrominance (to produce
color images) or luminance (to provide a second monochrome track). The machine
was for play only, with rewind, fast-forward and freeze-frame capabilities.
The format was invented by CBS Chief Scientist Peter Goldmark, who also
invented the long-play (LP) record. |