Write splice for optical recording channels

Details Write splice for optical recording channels Write splice for optical recording channels

2011-03-08

2011-03-08

Chow, Van N (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal level detecting using a reference signal

C369S059250, C369S047530, C369S047310

Reexamination Certificate

active

07903521

ABSTRACT:
An enhanced write splice for optical recording channels is disclosed. Optical control circuitry locks to previously-written data and determines the estimated write splice location. A training sequence is written to the optical medium at a location based on the estimated write splice location. The phase offset is then estimated by reading the training sequence. A new write splice location may then be calculated compensating for the phase offset estimate. Finally, the new data to be spliced may be written or overwritten to the channel at the new write splice location.

REFERENCES:
patent: 5677802 (1997-10-01), Saiki et al.
patent: 6381706 (2002-04-01), Zaczek
patent: 7245568 (2007-07-01), Hikimura et al.
patent: 2007/0070845 (2007-03-01), Sutardja

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