Data recording apparatus, data recording method, and optical recording medium
AssigneeSony Corporation
InventorYukio Shishido
Life of this patent
Estimating the term…
Abstract
Data is recorded on packet basis to a track of an optical recording medium and the data is pseudo-erased by erasing contents information of the track having the data. Information indicating the end position of the packet containing the data is recorded on the optical recording medium and a new data is recorded to the track where the data has been pseudo-erased in accordance with the information indicating the end position of the packet.
Claims29
A data recording apparatus comprising:
- data recording means for recording data on a packet basis onto a track of an optical recording medium;
- data pseudo-erasing means for erasing contents information of the track containing the data, thereby pseudo-erasing the data;
- and
- packet position recording means for recording on the optical recording medium information indicating an end position of the packet containing the data,
- wherein the data recording means records new data onto the track where the data has been pseudo-erased, in accordance with the information indicating the end position of the packet.
A data recording apparatus comprising:
- an optical head for irradiating light to an optical recording medium;
- a data recording controller for controlling the optical head so as to record data on a packet basis onto the optical recording medium;
- a data pseudo-erasing controller for controlling the optical head so as to erase contents information of a track having the data recorded and pseudo-erase the data;
- and
- a packet position recording controller for controlling the optical head so as to record on the optical recording medium information indicating an end position of the packet in which the data has been recorded;
- wherein the data recording controller, in accordance with the information indicating the end position of the packet, records new data onto the track where the data has been pseudo-erased.
A data recording method comprising the steps of:
- recording data on a packet basis onto a track of an optical recording medium and erasing contents information of the track containing the data, thereby pseudo-erasing the data;
- recording on an optical recording medium information indicating the end position of the packet containing the data;
- and
- a step of records a new data onto the track where the data has been pseudo-erased in accordance with the information indicating the end position of the packet.
An optical recording medium having a track on which data is recorded on packet basis, wherein the data is pseudo-erased by erasing only the contents information of the track on which the data has been recorded, and having information recorded to indicate the end position of the packet containing the data.
Dependencies are inferred from the claim text.