Capacitance Electronic Disc
Videos
The Capacitance Electronic Disc is an analog video disc playback system developed by Radio Corporation of America, in which video and audio could be played back on a TV set using a special stylus and
Exposed CED disc
200× light micrograph of a CED copy of True Grit (1969), showing that in this special case the closing credits of the film are directly visible on the disc itself. Because adjacent tracks on a CED encode the same line in the video signal across different frames, and because the closing credits scroll vertically at a constant rate, the signal produces a coherent image on the disc medium.
LaserDisc
Videos
LaserDisc is a home video format and the first commercial optical disc storage medium. It was developed by Philips, Pioneer, and the movie studio MCA. The format was initially marketed in the United S
Capacitance Electronic Disc
…production of the system for 17 years, until 1981, by which time it had been made obsolete by laser videodisc (DiscoVision, later called LaserVision and LaserDisc) as well as Betamax and VHS video cassette formats. Sales for the system were nowhere near projected estimates. In the spring of 1984, RCA announced…
A LaserDisc being held
Constant angular velocity (CAV) LaserDisc showing the NTSC field setup and individual scanlines. Each rotation has two such regions.
200× light micrograph of the NTSC field setup and individual scanlines of a CAV LaserDisc. From left to right: the end of one horizontal line, the horizontal sync pulse, the NTSC color burst, and the luminance for the rest of the line.
A top-loading, Magnavox-brand LaserDisc player with the lid open