BR7306701D0 - Aparelho para ler uma portadora de registro em que a informacao, por exemplo video e/ou audio, e registrada em pelo menos uma trilha
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Aparelho para ler uma portadora de registro em que a informacao, por exemplo video e/ou audio, e registrada em pelo menos uma trilha
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Publication number
BR7306701D0
BR7306701D0BR6701/73ABR670173ABR7306701D0BR 7306701 D0BR7306701 D0BR 7306701D0BR 6701/73 ABR6701/73 ABR 6701/73ABR 670173 ABR670173 ABR 670173ABR 7306701 D0BR7306701 D0BR 7306701D0
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Publication date
Application filed by Philips NvfiledCriticalPhilips Nv
Publication of BR7306701D0publicationCriticalpatent/BR7306701D0/pt
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
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Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
BR6701/73A1972-09-021973-08-30Aparelho para ler uma portadora de registro em que a informacao, por exemplo video e/ou audio, e registrada em pelo menos uma trilha
BR7306701D0
(pt)