Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – For editing
Reexamination Certificate
1996-11-27
2001-09-11
Young, W. R. (Department: 2651)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
For editing
C369S053210
Reexamination Certificate
active
06288989
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a method of recording audio and/or video information on the record medium, and more particularly to an information recording method wherein recorded audio and/or video information may be protected from being overwritten.
2. Description of Prior Art
Recently, in addition to conventional floppy discs, discs have been employed as recording mediums for recording audio and/or video information. Of the above record media, the optical disc has been recognized as the best recording medium based on its resistance to losses of information caused by a deterioration of sound and picture quality, scratching and the like, as well as easy random access and relatively large storage capacity. On the other hand, the floppy disc has less bulk in comparison with both the audio cassette tape and video cassette tape. These recording media have led to various developments in audio and/or video information recording apparatuses. Such a sound and/or image information recording apparatus includes an audio cassette recorder for driving an audio tape, a video cassette recorder for driving a video tape, a disc driver for driving a floppy disc an optical disc recorder for accessing an optical disc optically, etc.
Because the above-described recording media tends to have a large scale of storage capacity, it became possible to write a number of audio programs or a number of video programs onto the record media. Accordingly, each time desired audio and/or video programs were generated, a user had recorded the programs on a single record medium. Since recording operations were performed in a single record medium several times as mentioned above, valuable video and/or audio information previously recorded on the record medium were frequently lost. This results from a new program being record overwritten on the previously recorded program. Accordingly, users began to want to protect any valuable information or programs previously recorded on the record medium.
For the purpose of protecting the audio and/or video information or program previously recorded on the record medium, mechanical recording prevention tabs are frequently installed in the enclosure of record medium. In fact, the video and audio cassette tapes restrict a recording of video and/or audio information, in accordance with whether there is the recording prevention tab in the cassette or not. In other words, if the recording prevention tab is attached in the recording medium, then the audio and/or video information is recorded on the audio and video cassette tapes; whereas if it is removed from the cassette, then the audio and/or video information is not recorded on the audio and video cassette tapes. Similarly, the floppy disc restricts a recording of information in accordance with a position of the recording prevention tab installed to a caddie or a jacket.
However, the above method which prevents a recording by exploiting the mechanical recording prevention tab, brings about an unnecessary waste in the storage area of recording medium because information is not recorded with reference to the entire storage area of recording medium. Rather, a portion of the storage area of the record medium is generally not utilized when the recording prevention tab is installed. Also, the method of preventing a recording by exploiting the mechanical recording prevention tab has a disadvantage in that, since information unnecessary to a user occupies a portion of the storage area of record medium, the utilization efficiency of the storage area is deteriorated largely.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention is to provide an information recording method which establishes a protection mode for preventing the overwriting of audio and/or video information recorded on a record medium.
It is another object of the present invention to provide an information recording method which can protect previously recorded information by recording audio and /or video information on a record medium indicating that the previously recorded information should not be overwritten.
It is yet another object of the present invention to provide an information recording method which can improve a utilization efficiency of a storage area of record medium by recording new information, instead of the previously recorded information, on the record medium.
In order to obtain the above and other objects, an information protection mode establishing method according to one aspect of the present invention comprises the steps of selecting whether to protect information to be recorded during initiation of recording; storing into a memory start position data relating to a start position of the recording medium on which the information is recorded, and the selected protection or non-protection into a memory; and recording termination position data relative to an end point of a storage area of the record medium on which the information is recorded, and the start position data and the selected protection or non-protection stored in the memory on a specific storage area of the record medium during termination of the recording.
Further, an information protection mode modifying method according to another aspect of the present invention comprises the steps of establishing a modification mode for changing the protection of information; reproducing a plurality of overwriting prevention information relating to corresponding information stored in a specific storage area of the record medium; storing the plurality of overwriting prevention information into a memory to thereby display a protection or non-protection of the plurality of information; selecting any one of the plurality of information and inputting a change instruction relative to the protection or non-protection; storing the change instruction into said memory to update a protection or non-protection of the selected information; and recording the plurality of overwriting prevention information stored in the memory into a specific storage area of the record medium.
Furthermore, an information recording method with a function of protecting previously recorded information according to yet another aspect of the invention the steps of retrieving recording start position data and recording termination position data relative to a plurality of previously recorded information from a specific storage area of the record medium in response to a recording instruction; checking whether a recording position of new information is a position on the recording medium corresponding to any one of the retrieved recording start position data, in the course of recording said new information on the record medium; and moving the recording position of the new information to a position of the record medium corresponding to any one of the retrieved recording termination position data.
Furthermore, an information recording method with a function of protecting previously recorded information according to still another aspect of the invention comprises the steps of retrieving recording start position data and recording termination position data relative to a plurality of previously recorded protection mode information from a specific storage area of the record medium in response to a recording instruction; checking whether a recording position of new information is a position of the record medium corresponding to any one of the retrieved recording start position data, in the course of recording the new information on the record medium; and moving the recording position of the new information into a position of the record medium corresponding to any one of the retrieved recording termination position data.
Moreover, an information recording method with a function of protecting previously recorded information according to still another aspect of the invention comprises the steps of retrieving priority values, recording start position data and recording termination position data relative to a plurality of previously recorded information from a specific storage area of
Kang Dong Cheol
Lee Jae Hyoung
Park Tae Joon
Ro Jin Tae
Seo Kang Soo
LG Electronics Inc.
Young W. R.
LandOfFree
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