Recording device capable of detecting the change in length and p

Details Recording device capable of detecting the change in length and p Recording device capable of detecting the change in length and p

1994-06-21

1996-07-02

Dinh, Tan

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 58, G11B 724

Patent

active

055330037

ABSTRACT:
In an information recording medium having a plurality of regularly spaced pits that alternate between data pits and servo pits, digital data is recorded onto the medium by varying the position of the edges of the pits. In accordance with the present invention, servo data is distinguished from user data by locating the edges of an adjacent pair of servo pits in a position which is unavailable to the data pits. In addition, an information recording medium reproducing apparatus is also disclosed.

REFERENCES:
patent: 4873680 (1989-10-01), Chung et al.
patent: 5345434 (1994-09-01), Ide et al.
patent: 5347505 (1994-09-01), Moritsugu et al.
patent: 5414689 (1995-05-01), Maeda et al.
patent: 5418770 (1995-05-01), Ide et al.
patent: 5422865 (1995-06-01), Katayama et al.

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