Equipment for the optical playback of analog phonographic...

Details Equipment for the optical playback of analog phonographic... Equipment for the optical playback of analog phonographic...

2005-08-03

2010-02-09

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Optical reading of mechanical record

C369S112010, C369S275100

Reexamination Certificate

active

07660208

ABSTRACT:
This invention relates to equipment for the optical playback of sound media which includes resources (1) that has engraves grooves, (3, 9) for generating at least one light beam that presents a light spectrum variation according to its incidence angle on an area of the sound media and an image sensor (7) placed so that it recovers the light reflected by said area of the sound media.

REFERENCES:
patent: 4504934 (1985-03-01), Tanaka et al.
patent: 7088659 (2006-08-01), Hibino
patent: 7345975 (2008-03-01), Fadeyev et al.

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