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"At age 20, he attempted to shrink the size of a phonograph record and eliminate the scratchy quality of the sound. Two years later, he completed the project at
by mrob 8y ago
"At age 20, he attempted to shrink the size of a phonograph record and eliminate the scratchy quality of the sound. Two years later, he completed the project at Tokyo Imperial University’s Engineering School. The drive could be read with magnetic and light sensors, and he received a Japanese patent for the disk invention in 1952.
No matter how you look at it, that’s the definition of digitizing analog technology."
Sounds like it's still analog, like a Laserdisc.
- Animats 8y agoThat seems more like some of the early systems for movie sound recording. There's a whole history of clunky synchronized movie sound systems going back to 1918 or so. Optical tracks on film, synchronized disks, magnetic strips on photographic film, sprocket-fed film with a magnetic coat. The movie people needed to edit audio, which involved lots of cutting and pasting and specialized machinery. IBM also had something called the Magnebelt, an endless belt of tape 4 inches wide used in dictating machines.