Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2004-10-15
2009-10-13
Tran, Thang V (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S059250, C369S030120, C369S275300
Reexamination Certificate
active
07602686
ABSTRACT:
A simultaneous recording and reproduction method for recording a first real time data in an information recording medium while reproducing a second real time data recorded in the information recording medium, including the steps of: searching for unallocated areas on the information recording medium and allocating at least one unallocated area, each having a size which is greater than or equal to a minimum size Y, as an area in which the first real time data is to be recorded: selecting at least one area in which each area includes a non-used area having a size which is less than or equal to K from among the allocated at least one area, wherein K denotes the size of non-used area which is allowed within a window having the same size as the minimum size Y: recording the first real time data in the selected at least one area; and reading the second real time data from at least one area in which the second real time data has been recorded, whereby each of the at least one area has a size which is greater than equal to the minimum size Y, wherein the minimum size Y is determined to enable the simultaneous recording and reproduction, even if the non-used area having a size of K exists in each of two adjacent areas where data is to be recorded during the recording operations immediately before and immediately after an access operation, or even if the non-used area having a size of K exists in each of two adjacent areas where data is to be read during the reproduction operations immediately before and immediately after an access operation.
REFERENCES:
patent: 5819290 (1998-10-01), Fujita
patent: 6553177 (2003-04-01), Shimizu et al.
patent: 7330412 (2008-02-01), Harada et al.
Panasonic Corporation
Pendleton Dionne H
Renner , Otto, Boisselle & Sklar, LLP
Tran Thang V
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