Ray Dolby

Ray Milton Dolby (January 18, 1933 – September 12, 2013) was an American engineer and inventor of the noise reduction system known as Dolby NR. He was also a co-inventor of video tape recording while at Ampex.
He was the founder of Dolby Laboratories. He was also a billionaire and a member of the Forbes 400 with an estimated net worth of $2.9 billion in 2008 although as of September 2012 it was estimated to have declined to $2.4 billion.
Dolby was born on January 18, 1933 in Portland, Oregon. He studied at San Jose State University, at Stanford University, and at Cambridge University.
Dolby was married to Dagmar Dolby from 1966 until his death in 2013. They had two children.
Dolby died on September 12, 2013 in San Francisco, California from leukemia, aged 80.