Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1988-06-02
1990-06-05
Canney, Vincent P.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
369 59, G11B 509, H04N 576
Patent
active
049320165
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to an apparatus and a method of recording and reproducing data using a disk on which information, such as musical performance information, can be recorded.
BACKGROUND OF THE INVENTION
There are so far been developed an optical disk on which audio signals, for example, are recorded in a digital form, or a so-called compact disk. On the compact disk, all the pieces of music are recorded and to end such that, in case of normal reproduction, the reproduction operation is continued after the end of the reproduction of a piece of music such that the next piece of music follows immediately thereafter.
Since the compact disk is dedicated to reproduction, it is desired that a disk system be evolved in which the disk is recordable and in a relation of superior compatibility with respect to the compact disk. However, in such disk system, all the musical pieces are not always recorded end to end such that an unrecorded portion may exist for example between the first and second pieces of music. If the continuous reproduction operation were performed in this case, the silent portion would be continuously reproduced from the end of the first piece of music until the start of the second piece of music. In case of a so-called overlapped recording, that is, when a new piece of music is recorded over a previously recorded portion, the original musical piece occasionally remaining after the end of the newly recorded musical piece would also be reproduced.
In addition, when performing a recording (sound-recording) operation, it is rather difficult to find the unrecorded portion and a lot of time may be involved in finding such portion.
In view of the above described problems, it is an object of the present invention to provide an apparatus and a method of recording and reproducing data using a disk wherein optimum reproduction can be performed without losses in the reproduction operation even when an unrecorded portion or portions exist between ajoining pieces of music, or when a piece of music shorter than the previously recorded piece of music is recorded overlapped thereon. It is another object of the present invention to provide a method and an apparatus for recording and reproducing data using a disk wherein an unrecorded portion of the disk can be found promptly in the course of the recording (sound recording) operation.
SUMMARY OF THE INVENTION
The apparatus for recording and reproducing data using a disk including a Table of Contents ("TOC") section in which the absolute time information is previously recorded and in which the first information indicating at least the numbers and the start time points of the respective musical pieces based on said absolute time information can be recorded, and a data region in which the second information such as the musical performance information can be recorded, includes, according to the present invention, means for reproducing said first information already recorded in said TOC section and transcribing the reproduced first information in a memory element in the apparatus upon attachment of said disk to the apparatus, means for writing said first information in said memory element at the time of recording said second information on said disk, and means for recording the information stored in said memory element into said TOC section of the disk after the end of recording and before taking out said disk.
The method for recording and reproducing data using a disk including a TOC region in which the absolute time information is previously recorded and in which the first information indicating the numbers and the start time points of the respective musical pieces based on said absolute information can be recorded and a data region in which the second information such as the musical performance information can be recorded, includes, according to the invention, reproducing said first information previously recorded on said TOC section at the time of disk attachment and transcribing the reproduced first information, writing said first i
REFERENCES:
patent: 4716558 (1987-12-01), Karayama et al.
patent: 4731774 (1988-03-01), Furukawa
Ando Ryo
Fujiie Kazuhiko
Yoshida Tadao
Canney Vincent P.
Shaw, Jr. Philip M.
Sony Corporation
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