JPH117754A - Disk recording/reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means for erasing only music names recorded on a recording/reproducing disk with simplified manipulation. SOLUTION: Data of music names of mini-disk MD1 for recording and reproducing operation is read with a disk recording/reproducing circuit 2 and is then stored to RAM3. A control circuit 4 stores, when a music name erasing key 7 is depressed while a music selected by an operation key 6 is displayed on a display device 5,00h indicating that recording is not conducted to the pointer indicating the area on RAM 3, where the music number to be erased is recorded and registers the value indicating the head of the unrecorded area as the address of the last slot. Thereafter, the control circuit 4 also couples the area where the music number is recorded, registers the value indicating the first slot to the pointer indicating that the music name is not yet recorded, and erases only the music name of the designated music number by transferring and storing the data updated on the RAM3 to the data recording area of the music name of the MD1 for recording and reproducing operation by the disk recording/reproducing circuit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk recording / reproducing apparatus used for recording audio information and data.

[0002]

2. Description of the Related Art Currently, there is a recording / reproducing mini-disc (hereinafter abbreviated as MD) system as a disk recording / reproducing apparatus for recording and reproducing music and the like using a magneto-optical disk. The recording / reproducing MD system records and reproduces audio signals and character information on a rewritable magneto-optical disk.

FIG. 5 is a diagram showing a cross-sectional structure of a main part of a recording / reproducing MD1. The MD for recording and reproduction is divided into four parts from the innermost circumference of the disc into a lead-in area 8, a UTOC area 9, a program area 10, and a lead-out area 11, and data signals such as audio signals are recorded in the program area 10. Various ID signals such as music number and music name information are recorded in the UTOC area 9. Therefore, by rewriting the contents of the UTOC area 9, operations such as addition / deletion of a song number and a song name can be performed.

FIG. 6 is a flowchart for erasing a song title by a conventional method. Referring to the flowchart below,
A description will be given of a conventional case of erasing only the song title of a disc on which song title data is written. First, in S9, a song number to be erased is selected, and the song name is displayed on the display device. Next, in S10, the characters displayed on the display device are deleted one by one by inputting the delete key. In S11, it is checked whether or not all the characters have been erased. If all the characters have not been erased, the process returns to S10 and repeats the erasure. A state in which all erasure is completed and there is no character is created, and the data is transferred to the UTOC area on the RAM described below in S12. Finally, in S13, the data on the RAM is written again to the MD for recording and reproduction, thereby deleting only the data of the music title.

[0005]

In the above-described conventional magneto-optical recording / reproducing apparatus, in order to erase the data of the music title, all the data of the music title must be displayed on the display once and erased character by character. In addition, there is a problem that it takes time to display and erase when the number of characters increases.

Further, when erasing the song name data of a plurality of songs, after creating a state in which there is no character one by one, the recording / reproduction M
There is a problem that it is necessary to perform an operation of recording a plurality of times in D, and it takes a long time for erasing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is possible to display only the data of a designated song or a plurality of songs once without displaying the song title data on a display. It is an object of the present invention to provide a magneto-optical recording / reproducing apparatus capable of erasing data at a high speed.

[0008]

According to a first aspect of the present invention, there is provided a magneto-optical recording / reproducing apparatus capable of recording and reproducing data, a data recording area of a music piece, and data of a music piece name. A disk-shaped recording medium having a recording area, recording / reproducing means for reading out the data of the music and the data of the music title from the recording medium to reproduce the music, and recording the data of the music and the data of the music title on the recording medium, at least the recording medium Temporary storage means for temporarily storing the data of the song name read from the program, a song number selection key for selecting a song number to be erased,
A song title erase key for instructing batch erasure of only the song title data while leaving the data of the designated song recorded on the disc, and recording / playback to the disc by controlling the recording / playback means and writing / reading to the temporary storage means A pointer indicating the beginning of an unrecorded area in the data recording area of the song title of the recording medium, a pointer indicating the position of a slot for recording the song title corresponding to each song number, And a pointer indicating the position of the next connected slot on the slot for recording the song title.

In such a configuration, the control means causes the recording / reproducing means to reproduce the music title data in the data recording area of the music title of the disc and to transfer and store the data to the temporary storage means.
When it is detected that the erase key has been pressed, a pointer indicating the slot in which the title of the song selected by the song number selection key on the temporary storage means is recorded is displayed indicating that the slot is not recorded. Register the value indicating the beginning of the recording area as the link destination of the last slot where this song title was recorded, then connect the area where this song number was recorded, and then set the value indicating the first slot as the song title unrecorded And the data rewritten on the temporary storage medium is transferred and recorded in the data recording area of the music title on the storage medium by the recording / reproducing means, thereby deleting only the music title of the designated music number. As a result, it is not necessary to erase one character at a time even in a song having a long song name, and only the song name on the disc can be erased by one key input operation.

Next, a second aspect of the present invention is the first aspect.
In addition to the invention, the control means has a reproduction music program means, and when an erase key is pressed, the slot in which the music name of the music programmed by the reproduction music program means is recorded is displayed on the slot in which the music name is recorded. All are linked by a pointer indicating the position of the next slot to be linked,
At the end of the linked slot, the value of the pointer indicating the head of the unrecorded area is stored, and the head of the linked slot is newly registered as a pointer indicating the unrecorded area. After indicating that all of the pointers indicating the slots in which the song titles are recorded are not recorded, the data rewritten on the temporary storage medium is transferred and recorded by the recording / reproducing means to the song title data recording area of the storage medium. Only the song names of all the song numbers programmed by the program can be erased collectively. As described above, it is not necessary to delete the song titles one by one, and only the titles of a plurality of songs selected in the procedure of the program reproduction can be deleted by one key input operation.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) Hereinafter, a disk recording / reproducing apparatus according to Embodiment 1 of the present invention, in which a magneto-optical disk is used as a recording medium, will be described with reference to FIGS. 1 to 3 and FIG. In FIG. 1 showing a block diagram of a magneto-optical recording / reproducing apparatus according to an embodiment of the present invention, reference numeral 1 denotes a recording / reproducing MD rotated by a spindle motor (not shown).
Reference numeral 2 denotes a disk recording / reproducing circuit which is a recording / reproducing means,
At the time of disc playback using a pickup (not shown), the data of the song, song title, and playing time recorded on the recording / reproducing MD is read out, and a part of the data is stored in a RAM 3 to be described later, and the data of the song title and playing time are also described. When recording, the song name, performance time data and song data sent from the control circuit 4 are recorded in the recording / reproduction MD1. Reference numeral 3 denotes a RAM as a temporary storage unit, which stores UTOC information at the time of recording / reproducing a disk. Reference numeral 4 denotes a control circuit as control means for controlling the disk recording / reproducing circuit 2 and the display device 5 based on an input from the operation key unit 6. Reference numeral 5 denotes a display device, which has a display unit for displaying a song number, a playing time, a song name, and the like of a song to be reproduced. Reference numeral 6 denotes an operation key unit, which has a plurality of keys for performing operations such as reproduction and recording of the recording / reproduction MD1, a program, and a music number to be reproduced or a music number to be erased. 7 is the song title erase key
This key is used to instruct only the song title to be deleted.

FIG. 2 shows, as is well known, a UTO for recording the title of a recording / playback MD in the entire UTOC area 9 of FIG.
It is explanatory drawing which shows C area. P-TNA of FIG.
2 correspond to the TNo (track number, that is, the song number) in FIG. 2B, and P-TNA1 to P-TNA255 (indicated from P-TNA17 in the figure) indicate the area in which the song name of each song number is recorded. Pointer to the first slot,
Each one byte is recorded in hexadecimal. The slot indicated by the pointer is the head of the slot in which the title of each song is recorded. If the title is long and two or more slots are required for recording, it is used as information for linking the slots as shown in FIG. When the recording of the title of the song ends with 7 bytes of one slot, 00h is recorded in the Link-P of that slot. Pointer P
If the value of -TNA is 00h, there is no slot for recording the song title, and thus there is no song title for that track.

If the title of a song is long and the recording of the title is not completed in one slot, but extends to the next slot, the Link-
A pointer indicating the next slot is recorded in P, and the next slot is obtained from the value of this pointer. If the recording of the song title is not completed in this slot, the next slot is further designated by Link-P. When the recording of the song title ends in that slot, 00h may be recorded in the Link-P of that slot.

In P-EMPTY, a pointer indicating the head slot of an unused slot in the music title recording area is recorded, and in Link-P of that slot, a pointer indicating the next unused slot is indicated. Link-
Unused slots are linked one after another by indicating the next unused slot to P.

Referring to FIG. 2, a detailed description will be given.
02h (hereinafter, h is omitted) is recorded in EMPTY. And if you try to see the song name of song number 1, P-TNA1
"1C" is recorded in the slot 1, and when the slot 1C is viewed, the song title "BCDEFGH" is recorded, and the Link-
Since P is 00, it can be seen that the song title is "BCDEFGH".

Since the P-TNA3 is recorded as "15" in the title of the song number 3, when the slot 15 is read, "DEFGH" is read.
Since "IJ" and "01" are recorded in the Link-P, the program jumps to slot 01 and reads "KLMNOPQ". However, since "09" is recorded in this Link-P, it goes to slot 09 further. Jump here, "RSTU
VWX ”. The Link-P of this slot is“
00 ", which indicates that the recording of the song title has been completed, and the song title is" DEFGH "
IJKLMNOPQRSTUVWX ".

Next, looking at the unused slots, the P-EMP
Since TY is “02”, looking at slot 02,
Since nk-P is “03”, looking at slot 03, Lin
k-P becomes "04", and in this way, 03-04, 05, 06, 07 and 08 follow slot 02, and the link 09 of slot 08 is "0A". Skip to slot 0A.
Unused slots are connected in the same manner.

With respect to the disk recording / reproducing apparatus configured as described above, a case where only one song name is erased with reference to FIG. 3 which is a flowchart for erasing the song name according to the first embodiment of the present invention will be described below. Will be described. First, by pressing a reproduction key in the operation key unit 6, the control circuit 4 recognizes the reproduction key of the operation key unit 6, and controls the disk recording / reproduction circuit 2 to reproduce the recording / reproduction MD1.

The disk recording / reproducing circuit 2 is a recording / reproducing MD.
1 is reproduced and the UTOC area 9 is called. Necessary data in the UTOC area 9 called by the disk recording / reproducing circuit 2 is stored in the RAM 3, and the tune number, playing time,
The necessary data such as the title of each song is sent to the control circuit 4. The control circuit 4 sends necessary data in the received music number, performance time, music name of each music and the like to the display device 5 for display.

When erasing only the title of one tune, the user selects the tune number of the designated tune, for example, 3 with the operation key section 6 as shown by S1 in the flowchart of FIG. The state is displayed. The display of the song name is not essential, and it is sufficient that the song number is selected. Next, in S2, it is determined whether or not the song title erasing key 7 has been pressed. When the key is pressed, the process proceeds to S3. In S3, the control circuit 4 sets the pointer (P-TNA) of the title of the song number 3 to be erased in the UTOC area stored in the RAM 3.
3) is changed from 15 to 00, and the Link-P of the last slot of the area in which the title of the song to be erased is recorded, that is, in the above example, the Link-P of slot 9 is replaced with P-00.
Pointer value recorded in EMPTY, that is, 02
Then, the pointer 15 indicating the head slot in which the title of the song to be erased is recorded is newly added to the P-EMP.
Register with TY. By this, the conventional P-EMPTY
The area in which the track name of the deleted track No. 3 has been recorded, that is, the slot 15, 01, 09, is connected before the area in which the track name has not been recorded indicated by. Slot 15 of the erased area
Starts recording, and then moves on to the area indicated by the pointer previously recorded in the P-EMPTY.

Next, in S4, the control circuit 4 controls the disk recording / reproducing circuit 2 to store the UTOC information in the RAM 3 rewritten by the above-mentioned method in the UTO of the recording / reproduction MD1.
By recording in the K area, only the title of the target tune number 3 can be deleted.

(Embodiment 2) Hereinafter, the operation of erasing a plurality of music titles according to a second embodiment of the present invention will be described with reference to FIG. 4, which is a flowchart for erasing a plurality of music titles. . First, in step S5, the operation key section 6 is used to select the track whose song name is to be deleted, and the song whose title is to be deleted is programmed by the playback song program unit. The repro- duced music program means causes the specified music to be played in the specified order and is conventionally well-known. When the control circuit 4 detects in step S6 that the song title erasing key 7 has been pressed, the control circuit 4 proceeds to step S7 to link the last slot of each song title linked by the program.
Recording the value of the slot of the next programmed track number in P is sequentially repeated, and all the slots in which the track numbers of the programmed track are recorded are connected, and the Link-P of the track name of the last programmed track number is linked. P-EMPTY before operation
And the pointer P-TNA of the title of the first song number
Is registered in P-EMPTY, and the pointer P-TNA of each programmed music is set to 00. Next, in S8, the control circuit 4 deletes only the song names of all the song numbers of the plurality of programmed songs by recording the UTOC information in the RAM 3 rewritten in the above-described manner in the UTOK area of the recording / reproduction MD1. be able to.

In each of the embodiments described above, the MD which is a magneto-optical disk is described as an example. However, the present invention is not limited to the magneto-optical disk, but may be applied to an optical disk of another recording format or a magnetic recording medium having a similar UTOK area. It can be implemented similarly.

[0024]

As described above, according to the first aspect of the present invention, the disk recording / reproducing apparatus of the present invention provides a new music title erasing key for erasing the music title of a designated track. All the song titles are displayed on the display, deleted one by one by the delete operation, and then written to the MD for recording / playback. Only the song number of the designated song is designated, and the designated song is operated by one key input. Only the song title can be erased in a short time and written to the MD for recording and playback.

According to the second aspect of the present invention, when erasing the titles of a plurality of songs, a song number is first programmed, and then the titles of a plurality of designated songs are collectively collected by a single operation by inputting a song name erasing key. This provides an advantageous effect that data can be erased in a short time and written to the MD for recording and reproduction.

[Brief description of the drawings]

FIG. 1 is a block diagram of a magneto-optical recording and reproducing circuit according to a first embodiment of the present invention;

FIG. 2 is a diagram showing a UTOC area for recording a music title of a recording / playback MD.

FIG. 3 is a flowchart for deleting a music title according to the first embodiment of the present invention.

FIG. 4 is a flowchart for erasing a song title according to the second embodiment.
chart

FIG. 5 is a diagram showing a cross-sectional configuration of a main part of a recording / reproducing MD.

FIG. 6 is a flowchart for erasing a conventional song title.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 MD for recording / playback 2 Disc recording / playback circuit 3 RAM 4 Control circuit 5 Display device 6 Operation key part 7 Song name deletion key

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Fig11B 27/34 N

Claims (2)

[Claims] 1. A disk-shaped recording medium which can be recorded and reproduced and has a data recording area of a song and a data recording area of a song title; and reads out song data and song title data from the recording medium to reproduce the song; Recording and reproducing means for recording song data and song name data on the recording medium; temporary storage means for temporarily storing at least song name data read from the recording medium; and song number selection for selecting a song number to be erased. A key; a song title erase key for instructing batch erasure of only the song title data while leaving the data of the designated song recorded on the disc; and controlling the recording / playback means to perform recording / playback on the disc and the temporary Control means for controlling writing / reading to / from the storage means, wherein the data recording area of the song title of the recording medium has a pointer indicating the head of an unrecorded area. A pointer indicating the position of a slot for recording the title of the song corresponding to each song number, and a pointer indicating the location of the next connected slot on the slot for recording the title of the song. The reproduction means reproduces the data of the music title in the data recording area of the music title of the disc and transfers and stores the data in the temporary storage means. When it is detected that the erase key is pressed, the music number selection key on the temporary storage means is read. The pointer indicating the slot where the title of the song selected to be erased is recorded is displayed to indicate that it is not recorded,
Register the value indicating the beginning of the unrecorded area so far as the link destination of the last slot where this song name was recorded, and then connect the area where this song number was recorded and then indicate the first slot Is registered in the pointer indicating the unrecorded music title, and only the music title of the music number designated by transferring and rewriting the data rewritten on the temporary storage medium to the data recording area of the music title on the storage medium by the recording / reproducing means is recorded. A disk recording / reproducing apparatus characterized by being configured to be erased. 2. The control means has a reproduction music program means, and indicates a position of a slot in which a music name of a music program programmed by the reproduction music program means is recorded, and a next connecting slot on the slot in which the music name is recorded. All the pointers are linked by a pointer, the value of the pointer indicating the head of the unrecorded area is stored at the end of the linked slot, the head of the linked slot is newly registered as a pointer indicating the unrecorded area, and each track is recorded. After indicating that all of the pointers indicating the slots in which the song titles are recorded in correspondence with the numbers are not recorded, the data rewritten on the temporary storage medium is replaced by the recording / playback means with the song titles of the storage media. The configuration is such that only the song names of all the programmed song numbers are collectively erased by transferring and recording to the data recording area. The disk recording / reproducing apparatus according to claim 1.