Optical recording medium applicable for improved servo control

Details Optical recording medium applicable for improved servo control Optical recording medium applicable for improved servo control

2005-08-16

2005-08-16

Patel, Gautam R. (Department: 2655)

Dynamic information storage or retrieval

Binary pulse train information signal

Having specific code or form generation or regeneration...

C369S275300, C369S275400

Reexamination Certificate

active

06930969

ABSTRACT:
In an optical recording medium10comprising groove tracks11including a first area Ba for recording record information and a second area Ca in which predetermined data is formed as embossed pit rows19and a readout of other data overwritten and recorded on said embossed pit rows19is prevented, and land tracks12formed between the adjacent groove tracks11, a depth Ed and a duty of the embossed pit rows19are set so that a radial push-pull signal in the first area and a radial push-pull signal in the second area become the substantially same level.

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