KR100314713B1 - Memo recording/playing method of mini disc player - Google Patents

Abstract

PURPOSE: A memo recording/playing method of a mini disc player is provided to record memo data on a specific track of a recordable zone or reproduce the memo data. CONSTITUTION: It is judged if a memo start key is input or not when a mini disc player is being played or stopped(S1). When the memo start key is inputted while the player is being played, memo data is inputted to be stored(S2). When the memo start key is inputted while the player is stopped, the memo data is inputted to be stored(S8). In the case that a play end key is inputted after the memo data is stored when the player is being played, the stored memo data is recorded in a recording zone of a track and user contents are re-edited(S13,S14). After the memo data is stored when the player is stopped, the memo data is recorded in a recording zone of a track and user contents are re-edited. When the mini disc is stopped, a memo indication key is inputted to read data of a user information region to store the read data in an external RAM. It is judged if there is memo data of a memo track among the data stored in the external RAM. Where there is memo data, memo data corresponding to an input value of a corresponding page key is reproduced.

Description

How to record and play notes on the mini disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mini disc player, and more particularly, to a memo recording and reproducing method of a mini disc for memo recording and reproducing various contents in a recordable area of the mini disc.

In area A of a general mini-disc (FIG. 1), contents of a disc (or TOC (Table Of Contents) area) are stored, for example, a title of a song, a disc title of a disc, and the like. The 'B area' stores the user information area (or 'UTOC (User Table Of Contents) area'), for example, a disc name, track name, recording time, etc., and the 'C area (or' recordable area '). Is stored in the content that can record and play the contents of the song.

These mini discs do not have a memo function for the user, and are limited to songs because only a recording time for a song, a title of a song, and a function of adding a disc title for a disc are added.

In addition, the data of the mini-disc is stored using ASCII code without compressing the data in the 'UTOC area'.

That is, as shown in FIG. 2, the microcomputer 10 receives characteristics of various disks through a key and stores them in the microcomputer internal RAM or the external RAM.

The data stored in the internal RAM or the external RAM of the microcomputer 10 is output and input to the ACIRC encoder and the EFM (Eight-Fourteen Modulator) modulator 3a without coding to code the data.

The coded data is written to the UTOC area using the magnetic head 1 and terminated.

Playback of the attributes of the disc is output to the external liquid crystal display (LCD) connected to the microcomputer (1) in the reverse order of the above process when the song is played, for convenience to the user.

However, this prior art had a problem that there was no way to store the various contents to be pursued by the present invention.

An object of the present invention is to provide a memo recording and reproducing method of a mini disc player for recording or playing memo data on a predetermined track among recordable areas.

As shown in FIG. 3, the configuration for recording and reproducing data on the mini-disc according to the above object is a memo start key, an enter key, '0 to 9', A key input unit 12 for inputting the internal RAM 10a of the microcomputer 10 by operating an 'A-Z' key, a memo end key, or an i-page key, and the key input unit 12 during disc playback or disc stop. A buffer 13 temporarily storing memo data input through the first code, a first code converting unit 14 for converting memo data stored in the buffer 13 into an ASCII code, and the first code converting unit 14 Store the ASCII code converted through the internal RAM 10a, set any track of the disk area as a memo track, store the start and end addresses of the data recorded in the memo track in the user information area, Divide the data you want to input into a certain size A microcomputer 10 for inserting synchronization data every predetermined period, an A / D converter 8 for converting analog audio data to be recorded into a digital signal, and a D for converting the extended and output digital audio data into an analog signal. A compression / extension section 7 for compressing and reproducing the digital data converted through the A / D conversion section 8 through the recording / recording section A / D conversion section 8 to expand and output the audio data; The memory controller 5 controls to store the audio data and the memo data input and output according to the control signal of the microcomputer 10 in the internal RAM 10a or the external RAM 6, and the memory controller 5 is input through the memory controller 5. And an encoder / decoder and a modulator / decoder 4 for encoding and modulating the memo data and audio data to be output, and audio and memo data output through the encoder / decoder and the modulator / demodulator 4. 2) Self recording on (1), an optical pickup unit (3) for reading audio and memo data recorded on the mini-disc (2), a servo unit (11) for driving the optical pickup unit (3), and the optical pickup unit The audio and memo data read out from (3) is converted into the ASCII code of the audio and memo data stored in the external RAM 6 or the internal RAM 10a through the encoder / decoder and the modulator / demodulator 4. The second code converting unit 15 converts the data into the second code converting unit 15 and the liquid crystal display unit 16 displays the data converted by the second code converting unit 15 so that the user can view it.

The memo recording method of the present invention according to the above configuration has a memo start key input discrimination process for determining whether or not a memo start key is input during play or stop, and the memo start key input is in play. During the play memo data input and storage process for inputting and storing the memo data, and the stop memo data input and storage process for entering and storing the memo data when the memo start key input is in the stop, and the memo during the play If there is a play end key input after data input and storage process, the first memo data recording and re-editing process for re-editing the user contents after recording the stored memo data in the recording area of an arbitrary track, memo data input and Second memo data recording to re-edit user contents after recording memo data to recording area of a certain track after saving It consists of re-editing process.

The memo recording processes are for storing memo data in a random track (eg, the first track) of the recordable area by the microcomputer 10 and will be described below with reference to FIG. 4.

First, it is determined whether a memo start key is input during play or stop (S1). When a memo start key is input during play, memo data (for example, 'A to Z', '0 to 9', etc.) Input by using the key (S2), using the external buffer 13 and pressing the Enter key while entering the data in sequence is divided into pages.

An example of key operation for dividing the above page unit is' 1 page Jin Young Chul

, '2page TEL 873 9032 Is the same as

The memo data input as described above is temporarily stored and then converted into ASCII code by the first code converting unit 14 (S3), and storage starts in the internal RAM 10a of the microcomputer 10 (S4). The pause time is used for reading as an operation of writing data to the RAM.

As described above, when storing in the internal RAM 10a, the microcomputer 10 inserts a specific synchronization signal for each page unit. However, when playing, the idle time of the microcomputer 10 (i.e., the memory is read and read). Is stored in the internal ram 10a or the external ram 6 of the microcomputer 10 by using a constant stop time of the full (full).

While storing the memo data as described above, when the user inputs a memo end key to end the memo (S5), the storage of the memo 10 inside (or external) RAM 10a and 6 ends (S6). ).

In the case of playing after the end of the storage, it is judged continuously whether there is an input of a play end key (S7), and when there is an input of a play end key, the memo data is not divided into cluster units (that is, 32 sectors). After compression and recording in the recording area (S13), the user information area (or UTOC area ') is re-edited (S14), which records data for judging the presence or absence of a memo in the' UTOC area '.

That is, edit the first TNO (also called the 'start address of the track') to '2 (1 byte of digit: 0000 OO1O) (i.e., the first TNO = 2; byte position 30) (see also FIG. 6) In order to realize this more precisely, page synchronization signal data is inserted each time one memo data is recorded.

The start and end addresses (byte positions 312 and 316) of the memo track (eg, the first track) are recorded in the 'UTOC area' (see FIG. 6).

On the other hand, it is determined whether there is an input of the memo start key during the play or stop (S1), and when the memo start key is input during the stop, the memo data is input by the microcomputer 10 (S8), and the buffer is unnecessary. .

In addition, if the 'enter key' is pressed while inputting memo data in order as described above, the input is performed in units of pages.

The memo data thus input is temporarily stored and then converted into ASCII code by the first code conversion unit 14 (S9), and stored in the internal RAM 10a of the microcomputer 10 (S10).

At this time, the microcomputer 10 inserts a specific synchronization signal for each page unit. However, when the microcomputer 10 stops, the microcomputer 10 immediately stores the internal (or external) RAM 10a and 6, and continuously stores memo data. Pressing the end key to end the memo (S11) ends the storage of the microcomputer 10 internal (external) RAM 10a, 6 (S12).

After the end of the storage in the internal RAM (10a) (S12), the memo data stored in the RAM is recorded in the recording region in the cluster unit (Sl3).

Then, the 'UTOC area' is re-edited (S14), which is the same as performing the operation during play.

As described above, the memo data reproducing method for displaying the memo data recorded in the recording area (for example, the first track) on the external liquid crystal display unit 16 of the microcomputer 10 in the unit of page is, first, the memo display key during the mini disc stop. A read data storage step of reading data of the user information area as an input and storing the read data in an external RAM; a first memo data determination step of determining whether memo tracks of memo tracks are among the data stored in the read data storage step; If there is memo data as the first memo data discrimination process, memo data storage process of reading the memo data and storing the memo data in an external RAM; and searching for memo data stored in the memo data storage process to determine whether there is a page synchronization signal at a predetermined period. According to the second memo data discrimination step of determining whether or not there is memo data of the memo track; 2 If the memo data of the memo track is present as a memo data determination process, a memo data reproducing process of reproducing memo data corresponding to an input value of a corresponding page key is performed.

Prior to the description of the above processes, the present invention uses the 'UTOC format'. In the case of a conventional audio disc, since the audio track starts from the first track, the byte position 30 of the user information area (see FIG. 6) is set to '1'. '(I.e., the first TNO = 1).

However, if the start address of the first track is '2' (ie, the first TNO = 2), the first track is not used.

Accordingly, the process for reproducing the memo data in the present invention will be described with reference to FIG.

First, when the memo display key is input during the mini disc stop (S15), the user information area (UTOC area) is placed in the user information area and the user information area is read (S16) to read the user data area. Are stored in the external RAM 6.

In this way, it is determined whether there is data of the memo track among the stored data, that is, whether the first TNO is 2 (S18), and when the value of the first TNO is '1' (that is, the first TNO = 1; 1 track starts) It is determined that there is no memo track, and the microcomputer 10 displays 'no note' on the liquid crystal display 16 (S19).

On the other hand, in the case where the memo track data exists, the first track is read (S2O) and stored in the external RAM 6 (because it is necessary to confirm again) (S21).

Thereafter, the data stored in the external RAM 6 is searched to determine whether or not there is data of the memo track, and it is determined whether or not there is a page synchronization signal at regular intervals (S22). In this case, the 'no note' is displayed on the liquid crystal display 16 (Sl9).

On the other hand, when the page sync signal is present, since the first track is a memo track, memo data corresponding to the value is selected according to the i value input by the i page key (i = 1,2, ...). The external RAM 6 searches (S23, S24) to output the i-th memo data to the liquid crystal display 16 (S25).

Ie 1 Pase: Jin young chul

2 Page: TEL 873 9032

3 Page: Suk Jin Sok

i Psge: ‥‥‥‥‥‥

It is represented by alphanumeric data as follows.

As described above, the present invention can solve the problem of not being able to memorize various contents in the conventional mini-disc player (MDP), and when the user has a mini-disc player, there is an advantage that can be used as a memo notebook as well as audio playback and recording. .

1 is a schematic view of a typical Mini Disk.

2 is a block diagram of a memo recording and reproducing apparatus of a conventional mini disc player (MDP).

3 is a block diagram of a memo recording and reproducing apparatus of a mini disc player according to the present invention.

4 is a flowchart illustrating a memo recording process of the mini disc player in the present invention.

5 is a flowchart illustrating a memo playback process of the mini disc player in the present invention.

6 is a diagram illustrating a sector structure of a general mini disk.

*** Explanation of symbols for the main parts of the drawing ***

One ; Magnetic Head 2: Mini Disc

3: pickup section 3a: encoder and modulation section

4: Encoder / Decoder and Modulation / Demodulation Unit 5: Memory Control Unit

6,10a: RAM 7: Compression / extension

8: A / D converter 9: D / A converter

10: microcomputer 11: servo unit

12: key input unit 13: buffer

14, 15: first and second code conversion unit 16: liquid crystal display unit

Claims (4)

The memo start key input and discrimination process for determining whether or not the memo start key is input during play or stop, and the memo data input and storage process during play for inputting and storing memo data when the memo start key input is in play. When the memo start key input is in the stop, the memo data input and storage process for inputting and storing the memo data is stopped, and if the play end key input is entered after the memo data input and storage process during the play, the memo data is stored. The first memo data recording and re-editing process for re-editing the user contents after recording in the recording area of the arbitrary track, and the memo data after recording and inputting and storing the memo data during the stop. A memo recording process including a second memo recording and re-editing process for re-editing; Read data storage process of reading data of user defined area by inputting memo display key during mini disc stop and storing it in external RAM; and first determining whether there is memo track of memo track among data stored in the read data storage process. Memo data determination process, memo data storage process for reading memo data and storing it in an external RAM when memo data is detected as the first memo data determination process, and searching for memo data stored in the memo data storage process for a predetermined period. A second memo data determination process for re-determining whether or not there is memo data of a memo track according to the presence or absence of a page synchronization signal for each page; and an input value of a corresponding page key when memo data of the memo track is present as the second memo data determination process. Includes memo data playback process to play memo data corresponding to Memo recording and playback method of a mini disc player, characterized in that consisting of a memo playback process. The method of claim 1, The first memo data recording and re-editing process includes a recording step of recording memo data in a recording area in cluster units; And a user information area re-editing step of editing the track start address value to '2' (first TNO = 2) and recording the start and end addresses of the memo track into the user information area. How to record and play memos. The method of claim 1, And the first memo data determination process determines whether a track start address value is a predetermined value (first TNO = 2). The method of claim 2, And the re-editing of the user information area comprises inserting page synchronizing signal data every time one memo data is recorded.