Roberto del Rosario

Roberto L. del Rosario (June 7, 1919 – July 30, 2003) was a Filipino entrepreneur who established Trebel Music Corporation (defunct), a piano company in the Philippines. He was the patent holder of the Sing Along System, a type of karaoke system he developed in 1975.

Roberto del Rosario
Born
Roberto Legaspi del Rosario

June 7, 1919
Pasay
NationalityFilipino
OrganizationTrebel Music Corporation
Known forPatentholder for the karaoke machine
Notable work
Sing Along System (SAS)
Spouse(s)Eloisa Beltran
Parent(s)Teofilo de Rosario and Consolacion Legaspi

Patent rights to Karaoke

Del Rosario held the patent to the Sing Along System, a type of karaoke system which he developed in 1975.[1] He filed a patent infringement case against a Chinese company before the Supreme Court. In 1996, the court ruled that the Chinese company violated his patent rights. He was recognized as the sole holder of a patent for a karaoke system in the world. However, most scholars credit Daisuke Inoue, a Japanese, as the inventor of the karaoke. Inoue invented the karaoke in 1971.[2]

Other works
  • Piano Tuner's Guide
  • Piano Keyboard Stressing Device
  • Copper Wire String Winding Machine
  • One-Man Band (OMB)
  • Voice Color Tapes
  • Sing-Along System (SAS)
  • Method of Determining a Singer's Voice Range

See also

References
  1. Sood, Suemedha (12 August 2011). "Karaoke in the Philippines". BBC Travel. Retrieved 19 February 2018.
  2. Brown, Kevin (12 September 2015). Karaoke Idols: Popular Music and the Performance of Identity (illustrated ed.). Intellect Books. p. 69. ISBN 9781783204441. Retrieved 19 February 2018.
  • Pascua Quing Ramos Reyes Roque Rosales. ".: PINOY IMBENTOR :". pinoyimbentor.atspace.com. Retrieved 2014-05-31.
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