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Although instructor Lee de Forest taught at Lewis Institute and performed research at Armour Institute of Technology (AIT) for only a brief time, he entered into the wireless annals with the first successful long-distance telegraphy experiments while on what would become IIT Main Campus. A prolific inventor, de Forest, along with his business partner, E. H. Smythe, developed an improved telegraphic detector, which they called the responder, and conducted a series of wireless-transmission ...
Lee de Forest (26 tháng 8 năm 1873 - 30 tháng 6 năm 1961) là một nhà phát minh người Mỹ, tự mô tả mình là "Cha đẻ của phát thanh", và là người tiên phong trong việc phát triển bản ghi âm trên phim được sử dụng cho các bộ phim. Ông có hơn 180 bằng sáng chế, nhưng cũng là một sự nghiệp đầy biến động, ông từng khoe rằng mình đã làm ra, sau đó mất, bốn gia tài. Ông cũng đã tham gia vào một số ...
In 1919, Lee De Forest filed his first patent on a sound-on-film process, DeForest Phonofilm, which recorded sound directly onto film as parallel lines. These parallel lines photographically recorded electrical waveforms from a microphone, which were translated back into sound waves when the movie was projected.
Lee De Forest (n. 26 august 1873, Council Bluffs (d), Iowa, SUA – d. 30 iunie 1961, Hollywood, California, SUA) a fost un inventator american. Studiile le-a făcut la Universitatea Yale. Contribuțiile sale remarcabile privesc în special domeniul radiotehnicii și al electronicii.
Lee De Forest is known for what he did in the world of sound, enabling it to be heard across the nation, through the radio, onto televisions and movie screens, and eventually as part of the first ...
Lee De Forest was a prolific inventor, receiving more than 300 patents in his lifetime. His life was also characterized by lawsuits in order to gain patent control over his inventions.
Lee de Forest officially brought sound to film in 1919. Lee De Forest: King of Radio, Television, and Film is about both invention and early film making; de Forest as the scientist and producer, director, and writer of the content. This book tells the story of de Forest’s contribution in changing the history of film through the incorporation ...
