Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal processing for controlling recording light...
Reexamination Certificate
2006-08-24
2009-02-03
Battaglia, Michael V. (Department: 2627)
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal processing for controlling recording light...
Reexamination Certificate
active
07486605
ABSTRACT:
The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc. In the optical data recording method, at least two of the plurality of recording marks comprises: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code.
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Ishida Takashi
Koishi Kenji
Nakamura Atsushi
Shoji Mamoru
Tasaka Shuichi
Battaglia Michael V.
Panasonic Corporation
Panitch Schwarze Belisario & Nadel LLP
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