Multilayer record carrier with shifted recording start and...

Details Multilayer record carrier with shifted recording start and... Multilayer record carrier with shifted recording start and...

2005-06-07

2005-06-07

Huber, Paul W. (Department: 2653)

Dynamic information storage or retrieval

Binary pulse train information signal

Format arrangement processing for auxiliary information

C369S094000, C369S124070, C369S275300

Reexamination Certificate

active

06904011

ABSTRACT:
The present invention relates to a multilayer record carrier, to a recording apparatus and to a method of recording on such a multilayer record carrier, and to a manufacturing method, wherein start and stop positions of recording areas at header portions (H) are shifted in a lower recording layer (8) by a predetermined distance (Δ) such that recording and reading in/from the lower layer (8) is not affected by a variation in the transmittivity of the upper layer (6) at the transitions between the recording areas (R) and the header portions. The shifting may be obtained by extending gap portions or adding mirror areas to the header portions (H).

REFERENCES:
patent: 5771386 (1998-06-01), Baumbauer
patent: 6728197 (2004-04-01), Miyamoto et al.
T. Narahara et al., Optical Disc System for Digital Video Recording, Jpn. J. Application Phys. vol. 39, Part 1, No. 2B, Feb. 2000, pp. 912-919.
K. Schep et a., “Format Description and Evaluation of the 22.5 GB DVR Disc”, Techn. Digest ISOM 2000, Sep. 2000.

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