Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2005-11-22
2005-11-22
Psitos, A M (Department: 2653)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S053310, C369S053410
Reexamination Certificate
active
06967912
ABSTRACT:
The present invention relates to method and apparatus for recording new data in a writable disk such as a once-writable disk CD-R and a rewritable disk CD-RW after previous recording to the disk is interrupted abnormally. A method of determining a recordable position of a writable disk according to the present invention, reads data recording information of the writable disk, examines whether or not an area after a recordable position indicated by the read data recording information has recorded data, and changes the recordable position to another position for new input data if the area has recorded data. Therefore, new data is always written after any uncompleted data track without being written over previously recorded data even if the recording information of an uncompleted data track is wrong or unusable. The method and apparatus for determining a recordable position of a writable disk according to the present invention, enable new data not to be overwritten onto previously recorded data whose recording was interrupted by a servo or writing failure caused from a mechanical shock. This allows new data to be recorded properly as well as prevents previously written data from being damaged or lost.
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Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Psitos A M
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