Dual sound system
Номер патента: CA1039850A
Опубликовано: 03-10-1978
Автор(ы): Edwin B. Levinson, John S. Joseph
Принадлежит: Sundstrand Corp
Опубликовано: 03-10-1978
Автор(ы): Edwin B. Levinson, John S. Joseph
Принадлежит: Sundstrand Corp
Реферат: ABSTRACT OF THE DISCLOSURE A Super-8 mm. movie film with two optical sound tracks, one in each margin of the film. A method for optically record-ing and reproducing audio information with high fidelity on a very narrow sound track. A scanning apparatus has lens and masks which accurately define and direct a light beam on the film sound track for high fidelity reproduction.
Sound system for vehicle
Номер патента: US20180328321A1. Автор: Isao Toda,Kenji Asada,Hironobu Hashiguchi,Katsumasa Sogame. Владелец: Mazda Motor Corp. Дата публикации: 2018-11-15.