Method and apparatus for destructing an optical disc

Details Method and apparatus for destructing an optical disc Method and apparatus for destructing an optical disc

2007-07-03

2007-07-03

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S103000, C369S053180

Reexamination Certificate

active

10612378

ABSTRACT:
A method and apparatus renders an optical disk unplayable on a customer's optical disc playback machine. A portion of the information bearing surface of the optical disc or the light reflected therefrom, is altered for data destruction from a predetermined area, i.e., a “Table of Contents” (TOC), in order to make the disc unplayable on the playback machine of the customer.

REFERENCES:
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patent: 4556946 (1985-12-01), Taniguti
patent: 5175719 (1992-12-01), Iimura
patent: 5345436 (1994-09-01), Higuchi
patent: 5400319 (1995-03-01), Fite et al.
patent: 6039637 (2000-03-01), Hutchison et al.
patent: 6189446 (2001-02-01), Olliges et al.
patent: 6338933 (2002-01-01), Lawandy et al.

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