KR0143279B1 - Method for editing information of selected song in an optical disc - Google Patents

Abstract

The present invention relates to a method for editing music selection information of an optical disc, comprising: a track editing signal judging step (S3) for judging whether a key signal for setting current track editing is input while playing the selected music information; If the current track edit key signal is inputted as a result of the judgment in the determination step S3, the current track address input step S4 reads the address of the track currently being played, and after this current track address input step 54, the TOS is reset. As a result of the thiosty editing execution determination step (S5) for judging whether or not a setup signal for editing the information of the user is input, and the setup signal for editing the information content of Tiosi is inputted as a result of the judgment during the thiosty editing execution determination step (S5). When the TOS storage RAM is inserted into the new chapter by inserting the number and address of the new track and converting it into a new chapter, the TOS storage RAM is stored in the TOS of the optical disc. By subdividing the song information and storing the newly edited song information in TioShirm, the user can set the desired part of the desired song to a new chapter, so that the desired song position can be quickly reproduced accordingly. Of course, since the information of the disc is subdivided and reproduced quickly, the convenience of use is also increased.

Description

How to edit music selection information on optical disc

1 is a block diagram illustrating a disk system with a selection function,

2 is a block diagram illustrating an apparatus to which the method of the present invention is applied,

3 (a) and (b) are explanatory diagrams for explaining the structure of a sub code included in a general CD.

4 is an explanatory diagram for explaining a data pocket relating to a mode of a subchannel included in the subcode shown in FIG.

5 is a chart of the flow of the present invention,

FIG. 6 is an explanatory diagram for explaining Tiosi's information editing easily.

7 is an explanatory diagram for explaining an embodiment of the tOS storage RAM changed by track editing.

* Explanation of symbols for main parts of the drawings

1: CD 2: Optical pickup

3: waveform shaping section 4: data signal processing section

5: Toshi Save RAM 6: Microcomputer

7: CD-ROM decoder 8: Video / audio decoder

9: image signal processing unit 10: speaker

11: Audio signal processor 12: Spindle motor

13: Servo controller 14: Keyboard

15: display

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for editing music selection information of an optical disc, and in particular, by re-editing the song information contained in the thio city of the optical disc and storing the edited song information in the RAM of the thio city. Since a certain part is set to a new chapter, it is possible to quickly play a desired song position accordingly, and to select a music information editing method of an optical disc that is combined with other functions such as other programs to maximize the ease of use. .

In general, the present invention is generally regarded as a large-capacity information recording medium. For example, when a recording method of a compact disc is classified, a lead-in area, a program area, and a lead-outarea are defined from the inside of the compact disc. In the area of the lead-in area, the address (position on the disk) of the information recorded on the compact disc, the information reproduction time and the absolute reproduction time are recorded, so-called TOC (Table Of Contents). In the program area, for example, when music information is loaded on the compact disc, at least one piece of music information is recorded, and the lead-out area contains information indicating the end of the program.

Then, referring to FIG. 1, the disc reproducing system equipped with the music selection function used in the above-described manner is an optical pickup 71 for detecting a music data signal contained in the CD 70, and the optical pickup. A waveform shaping section 72 for waveform shaping the music piece data signal detected by 71, a digital signal processing section 73 for digitally processing the music piece data signal waveform shaping by the waveform shaping section 72; The microcomputer 74 controls the music piece data signal inputted from the digital signal processing unit 73, for example, decodes the music piece data and reproduces the registered song number if it is the same as the previously registered identification data, and controls the operation of the system as a whole. ) And an error check bit in the sector unit of the digital music data signal inputted by the music selection control signal of the microcomputer 74. A CD-ROM decoder 75 for separating the address bits and data data, and a video / audio decoder 76 and a video / audio decoder for separating the data data of the CD-ROM decoder 75 into video signal data and audio signal data. The video signal data separated by the video / audio decoder 76 is low-frequency amplified by the video signal processor 77 and the selected music signal data separated by the video / audio decoder 76 to the outside through the speaker 78. An audio signal processor 79 for outputting, and a servo control unit 81 for controlling the driving operation of the spindle motor 80 by the servo control signal of the microcomputer 74.

The microcomputer 74 is connected to a keyboard 82 for inputting a user's selection function setting signal.

On the other hand, referring to the operation of the disc playback system equipped with the music selection function as described above, the CD 70 containing the song title data is first mounted on the tray, and through the keyboard 82 to set the song selection code signal registered the desired song When the microcomputer 74 recognizes this, the microcomputer 74 drives the spindle motor 80 through the servo control unit 81. Then, the CD 70 is also rotated, and at the same time, the optical pickup 71 detects the music piece data signal contained in the TOS of the CD 70 and inputs it to the waveform shaping unit 72. The waveform shaping unit 72 waveform-forms the detected analog data signal and inputs it to the digital signal processing unit 73. The digital signal processing unit 73 converts the input music data signal into a digital signal. After processing, for example, the music piece data signal decoded in the sub code recorded in the program area is signal-processed and input to the microcomputer 74. The microcomputer 74 decodes the input music piece date and inputs music control information according to the music selection signal to the CD-ROM decoder 75.

In this CD-ROM decoder 75, the control information is decoded in the track of the digital selection data signal input by the microcomputer 74, and the error check bits, address bits, and data data are separated, for example, by sector. Input to video / audio decoder 76. In addition, the video / audio decoder 76 divides the data data containing the video and music information into audio signal data and video signal data and transmits the data data to the video signal processor and the audio signal processor 73, respectively.

The audio signal processor 79 low-frequency amplifies the input tuned audio signal data and then emits the signal to the outside through the speaker 78. At the same time, the image signal data is also processed by the image signal processor 77. Next, in synchronization with the selection audio signal, the display signal 83 is displayed as an image signal.

However, the disc playback system equipped with the conventional music selection function as described above, if the user wants to play a certain portion of his or her favorite songs from the disc recorded on the disc 70 from the beginning of the corresponding song recorded in the disc 70 It was very inconvenient because they have to go to play all one by one, and because the above playback operation must be played through a cumbersome process, there is a problem that the functionality of the system is deteriorated accordingly.

Accordingly, the present invention has been invented to solve the above problems, by re-editing the song information contained in the thio city of the optical disc, and by storing the newly edited song information in the RAM of the thio city, Since a certain part of the desired song is set as a new chapter, the desired song position can be quickly reproduced accordingly, and the information of the disc can be quickly edited by subdividing the information of the selected disc. Its purpose is to provide an editing method.

The present invention for achieving the above object is a track edit signal determination step of determining whether the key signal for setting the current track editing is input while playing the selected music information, and the result of the determination during the track edit signal determination step When the current track edit key signal is inputted, it is determined whether the current track address input step of reading the address of the track currently being played and the setting signal for editing the information content of Tiosi are input after the current track address input step. If a setting signal for editing the information content of TOS is inputted as a result of the TOS editing execution judgment step and this TOS editing execution judgment step, a new track number and address are inserted into the TOS storage RAM to convert to a new chapter. It is characterized by consisting of a tio edit editing step.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The apparatus to which the method of the present invention is applied includes an optical pickup 2 for detecting a music data signal contained in the CD 1, and a music data signal detected by the optical pickup 2, as shown in FIG. A waveform shaping section 3 for waveform shaping, and a data signal processing section 4 for EFM demodulating, for example, an input music piece data signal for digitally processing a music piece data signal waveform shaped by the waveform shaping section 3; The music data signal input from the data signal processing section 4 is controlled, and for example, information about the music tracks recorded in the TOS of the disk 1 is stored in the TOS storage RAM 5, and the track search ( Track search) or the song (divided into the chapter) to edit the song piece, the microcomputer (6) to control the overall operation of the system and the digital music data signal input by the music control signal of the microcomputer (6) Error checking ratio in sectors A video / audio decoder (8) for separating the data data of the CD-ROM decoder (7) into video signal data and audio signal data; The video signal data separated by the video / audio decoder 8 is subjected to low frequency amplification of the video / signal processing unit 9 and the selected music signal data separated by the video / audio decoder 9 to generate the speaker 10. The audio signal processor 11 outputs to the outside through the servo signal, and the servo controller 13 controls the driving operation of the spindle motor 12 by the servo control signal of the microcomputer 6.

The microcomputer 6 is connected to a keyboard 14 for inputting a user's selection function setting signal.

Here, the CD 1 (hereinafter also referred to as a compact disc) includes a lead-in area L1 in which overall disc information of the compact disc 1 is recorded, as shown in FIG. 3 (a) and (b). And a lead-out area (L0) for indicating the completion of reading of the information recorded on the compact disc (1).

In the program area PA, information such as, for example, music data including a sub code is recorded in units of frames, and the data type of the sub code includes the head of the frame as shown in FIG. Including a display synchronization signal (exactly, a frame synchronization signal), the control information and the sub code (that is, the control signal) including each service information, music information, and an error correction code are included.

In addition, the subcodes are defined to provide ease of use for the disc, and generally have channels of P, Q, R, S, T, U, V, and W. In general, when the disc is a compact disc that contains music information, the P and Q channels are mainly used, whereas when the disc is a compact disc graphics (CD Graphics) including a still image, the R-channel is used. -The still image is recorded using the W channel.

In general, in a compact disc containing music information, one subcode is designated per frame, and the subcode frame is normally a 2-bit synchronization signal, a 4-bit control signal, as shown in FIG. It consists of 98 bits including a 4-bit address signal, a 72-bit data signal, and a 16-bit error correction signal. In addition, the control signal is a signal for indicating the recording mode of the music information recorded on the disc, whether or not to perform the pre-emphasis during recording and whether the signal of the music information is two or four channels The signal of the P channel is a signal indicating the presence or absence of music information, that is, between the tune and the tune, and the start and end of the program is recognized as the P signal is turned on or off. Although the data signal varies depending on the channel and the address, for example, considering the Q channel, the music number, index number, playing time of each piece of music, and total running time of the program are recorded. In particular, the Q channel signal includes control data for defining the types of information recorded in the synchronization signals S0 and S1 and the track as shown in FIG. 4 (b), an address of 4 bits (ADR), and 72 bits. Data (DATA-Q) and data for error verification (CRC). In the data format of such Q channel, three modes of mode-1 to mode-3 are defined for the data DATA-Q, and for such three modes, the address ADR is changed for the corresponding mode. Is set. According to the data format for each mode, an address indicating each mode is recorded in the address area ADR as shown in Figs. 4A to 4B, and the format for each mode is read-in of each compact disc. The area L1 is also recorded as disc information for the compact disc.

Next, a method applied to the apparatus of the present invention configured as described above will be described.

First, when the CD (1) containing the song data is set on the tray and the user selects the desired song code signal in which the desired song is registered through the keyboard (14), the microcomputer (6) recognizes this and selects the song in the initial stage (S1). The information reproduction step (2) is performed.

Then, in this music selection information reproduction step S2, the microcomputer 6 reads the information contained in the TOS of the CD 1 as shown in FIG. 3 (a) (b) to perform the music selection reproduction operation. Run it.

That is, the microcomputer 6 drives the spindle motor 12 through the servo control unit 13 and the CD 1 rotates accordingly. At the same time, the optical pickup 2 detects the music piece data signal as shown in FIG. 3 (a) (b) contained in the TOS of the CD 1 and inputs it to the waveform shaping section 3. Let's do it. In addition, the waveform shaping unit 3 waveform-forms the detected detection data signal and inputs the waveform to the data signal processing unit 4. The data signal processing unit 4 processes the input grain data signal by an information signal. Then, the music data signal decoded from the sub code recorded in the program area is subjected to signal processing and input to the microcomputer 6. Then, the microcomputer 6 stores all the input music piece data in the TOS storage RAM 5, decodes it, and inputs music control information according to the music selection signal to the CD-ROM decoder 7.

The CD-ROM decoder 7 decodes the control information in the track of the digital new song data signal input by the microcomputer 6, and separates error check bits, address bits, and data data, for example, by sector. Input to the next video / audio decoder (8). In addition, the video / audio decoder 8 transmits the data data containing the video and music information to the video signal processor 9 and the audio signal processor 11 by separating the audio signal data and the video signal data.

The audio signal processor 11 low-amplifies the input tuned audio signal data and then emits it to the outside through the speaker 10. At the same time, the image signal data is also processed by the image signal processor 9. And then synchronized with the selected audio signal and displayed on the display 15 as an image signal.

On the other hand, after the music selection information reproducing step (S2), the track editing signal judging step (S3) proceeds to determine whether the key signal to be set for the current track editing is being input, and as a result, the track editing key signal is not input. If not, the process returns to the previous step (S2) and repeats the loop. However, if the current track edit key signal is input as a result of the determination in step S3, the process proceeds to the current track address input step S4 and reads the address (mm: ss: ff) of the track currently being played. Then, after the step S4, the process of determining the editing of the thiosches is carried out to determine whether to edit the information of the TOS and to not edit the information of the TOS. In the case, the process returns to step S2 to repeat the loop.

In addition, if it is determined in step S5 that the information content of Tiosi is desired to be edited, the procedure proceeds to Tiosio editing execution step S5 to execute tiosi editing.

That is, when the microcomputer 6 sets the desired piece of music by the user through the keyboard 14, the microcomputer 6 recognizes the new track number and address to the TOS storage RAM 5 as shown in FIG. Insert and convert to a new chapter.

Then, the display proceeds to the edited content display operation step S7, whereby the information in the newly edited TOS storage RAM 5 is edited, for example, as shown in FIG. It is displayed to the outside through the display 15.

Therefore, when editing the information content of a track as described above, a part of a desired song can be quickly and easily searched and repeatedly played without changing an existing algorithm.

As described above, the present invention allows subdivision of the song information contained in the tiosi of the optical disc and the newly edited song information to be stored in the tiosi ram, thereby setting a certain portion of the desired song to a new chapter. Therefore, it is possible to quickly reproduce the desired song position accordingly has the effect of increasing the convenience of use.

Claims (2)

A track edit signal determination step (S3) for judging whether a key signal for setting current track editing is input while playing the selected music information, and the current track edit key signal as a result of the determination during the track edit signal determination step (S3). Is inputted, the current track address input step (S4) for reading the address of the track currently being played and the setting signal for editing the information of Tiosi are input after this current track address input step (S4). As a result of the thiosty editing execution determination step (S5) and the thiosty editing execution determination step (S5), when the setting signal for editing the information content of the thiosci is input, the thiossi storage ram is set to the new track number and address. Inserting a TSI editing step of converting to a new chapter (S5). 2. The music selection information of the optical disc according to claim 1, further comprising a display operation step (S17) of editing contents for displaying the information in the newly edited TOS storage RAM to the outside after the step of executing the tOS editing. How to edit.