Dynamic information storage or retrieval – Editing of stored information
Reexamination Certificate
2000-02-09
2001-08-21
Edun, Muhammad (Department: 2651)
Dynamic information storage or retrieval
Editing of stored information
C369S047130, C369S053410
Reexamination Certificate
active
06278678
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to editing apparatuses and editing methods. More particularly, the invention relates to an editing apparatus for dividing a data file including main data formed by interconnecting one or a plurality of fixed-length recording data blocks and management data which manages recording positions and invalid data locations which is not to be reproduced. The invention also pertains to an editing method for use in the above type of editing apparatus and to a recording medium.
2. Description of the Related Art
The following type of storage system is being developed. A small storage medium having a built-in solid-state storage device, such as a flash memory, is formed and is loaded into a drive system specifically used for the above type of storage medium. Alternatively, the above-described storage medium is loaded into a drive system which is integrated into an audio/video machine or an information apparatus. Thus, computer data, image data, and sound data can be stored in the storage medium.
In the aforementioned storage system using a solid-state storage device, an editing operation is required on a file stored in the storage system. There is a further demand for an efficient editing operation, such as moving, copying, and overwriting of data, which is required for editing a file in the storage medium, is minimized, and the processing time and the power consumption required for an editing operation is reduced to a minimal level.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an editing apparatus for performing an editing operation more efficiently.
To achieve the above object, according to one aspect of the present invention, there is provided an editing apparatus for dividing a data file including main data and first management data added to the main data, the main data being formed by interconnecting one or a plurality of fixed-length recording data blocks, the first management data for managing a recording position of the main data and a position of invalid data which is not to be reproduced. The editing apparatus includes an operation unit for specifying a divide position at which a predetermined fixed-length recording data block including the main data and for dividing the main data into first and second data files in accordance with the divide position. An editing unit edits the first management data in order to make a first part of the predetermined fixed-length recording data block including the main data invalid. A generating unit generates second management data in order or make a second part of the predetermined fixed-length recording data block including the main data invalid, and adds the second management data to the second data file.
According to another aspect of the present invention, there is provided an editing method for dividing a data file including main data and first management data related to the main data, the main data being formed by interconnecting one or a plurality of fixed-length recording data blocks, the first management data for managing a recording position of the main data and a position of invalid data which is not to be reproduced. The editing method includes: a specifying step of specifying a divide position at a predetermined fixed-length recording data block including the main data and for dividing the main data into first and second data files in accordance with the divide position; an editing step of editing the first management data in order to make a first part of the predetermined fixed-length recording data block including the main data invalid; and a generating step of generating second management data in order to make a second part of the predetermined fixed-length recording data block including the main data invalid, and for adding the second management data to the second data file.
According to still another aspect of the present invention, there is provided a recording medium for managing at least one file and for reading or writing the file in units of data lengths. The recording medium includes a data recording area for recording at least one data file which is formed of at least one item of main data, at least one item of space data for reserving a recording area, and first management data for managing recording positions of the main data and the space data on a storage medium. A management-data recording area records second management data which manages the data file recorded in the data recording area.
REFERENCES:
patent: 5694387 (1997-12-01), Gotoh et al.
patent: 5737639 (1998-04-01), Ohmori
Edun Muhammad
Maioli Jay H.
Sony Corporation
LandOfFree
Editing apparatus, editing method, and recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Editing apparatus, editing method, and recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Editing apparatus, editing method, and recording medium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2494574