Information recording media, a method for...

Details Information recording media, a method for... Information recording media, a method for...

2006-07-04

2006-07-04

Neyzari, Ali (Department: 2656)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275300

Reexamination Certificate

active

07072283

ABSTRACT:
A method of recording information by irradiating a recording track in an information recording medium with light, the information recording medium comprising a plurality of layers for the recording of information by light irradiation. Each of the layers comprises asperities made up of a groove, the groove in each of the multiple layers having wobbles of a first frequency and wobbles of a second frequency that is different from the first frequency within a single track, wherein the first frequency is constant in each of the layers, and wherein a different signal is obtained from the wobbles of the first and second frequencies in each of the plurality of layers.

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