CHM Revolution

Date

1984 ca.

Photographer

Painter, Chuck

Copyright Owner

© Chuck Painter / Stanford News Service

Object ID

500004128

Yamaha’s DX7 digital synthesizer, used by many pop bands in the 1980s and 1990s, was based on frequency modulation (FM) synthesis invented by Stanford professor John Chowning in 1967. For more than a decade it was Stanford’s most lucrative patent.