JP3162064B2 - Playback device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for reproducing a recording medium such as an optical recording medium called a compact disk or a laser disk.

2. Description of the Related Art In recent years, there has been remarkable progress in reproducing devices such as optical recording media called compact disc players and laser disc players.A plurality of recorded recording media such as compact discs can be simultaneously recorded in one reproducing device. A playback device such as a compact disc player of a type called a changer that can be stored and enjoyed freely from among the plurality of storage media stored therein without having to insert and remove a recording medium of your choice from the playback device. It has been commercialized.

FIG. 7 is a block diagram showing a configuration of a conventional reproducing apparatus. Reference numeral 1 denotes a recording medium.
The storage means 2 is configured to be attachable to a recording medium storage means of the playback apparatus main body. Operation means 4
Is connected to the recording medium selection means 5, the reproduction means 6 and the display means 7, and the recording medium 1 input and designated by the operation means 4 is selected from the storage means 2 by the recording medium selection means 5 and the reproduction means 6
And reproduced by the reproducing means 6. The reproduction means 6 is connected to the reproduction position detection means 8, and the reproduction position detection means 8 is connected to the display means 7 at the subsequent stage.

In such a configuration, the storage means 2 stores a plurality of recording media 1 called a changer magazine. Usually, the storage means 2 is detachable from the main body of the reproducing apparatus and taken out from the main body of the reproducing apparatus. In this state, the user mounts and stores the recording medium 1 in the storage means 2.

The storage medium 2 in the storage means 2 can be reproduced by mounting the storage means 2 containing the recording medium 1 on the storage medium storage means 3 of the reproducing apparatus main body.

When the user inputs and designates the recording medium 1 to be reproduced by the operation means 4, the recording medium 1 designated by the user from the storage means 2 by the recording medium selecting means 5 is automatically mounted on the reproducing means 6 and reproduced. The reproduction position detection means 8 detects the current reproduction position of the recording medium 1 from the reproduction signal from the reproduction means 6 and the detected position is displayed on the display means 7. The display contents are, for example, as shown in the display example in the conventional example of FIG. 8, and include a DISC number indicating the number of the recording medium in the changer magazine and a disc number in the recording medium. TRAC indicating the number of the song currently playing
The main content is that the K number is displayed.

In this way, the user is trying to display what recording medium is currently being reproduced by the reproducing means 6 and which part of the recording medium is being reproduced.

However, in such a conventional reproducing apparatus, the reproducing unit 6 knows what recording medium is currently being reproduced and what part of the recording medium is being reproduced. If an attempt is made, the display means 7 displays a DISC number indicating the number of the recording medium in the changer magazine and a TRACK number indicating the number of the music piece being reproduced in the recording medium. , It is necessary to look at the case of the recording medium called the jacket in which the corresponding recording medium 1 is contained, and to check information such as the title of the song and the title of the song. Had operational problems.

The present invention solves the above-mentioned conventional problem, and what is the title of the recording medium currently being reproduced by the reproducing means, and what title is being reproduced in the recording medium. It is an object of the present invention to provide a reproducing apparatus capable of directly displaying the title content itself indicating "" on the display means.

Means for Solving the Problems In order to solve the above-mentioned problems, a reproducing apparatus of the present invention is provided with a storage means for storing a plurality of recording media which are usually mounted and detachable as necessary, A recording medium selecting means for selecting and taking out an arbitrary recording medium from the plurality of recording media and returning the recording medium to its original position; and reproducing a signal recorded on the recording medium selected by the recording medium selecting means. Reproduction means, storage means in which content information representing the contents of the plurality of recording media is written and the content information is readable and exchangeable, storage control means for storing in the storage means, and storage means Reading control means for reading the stored content information; and a description of exchanging the storage means and transplanting the stored content information stored in the storage means to the new storage means replaced. Memory transfer means.

Further, the reproducing apparatus of the present invention comprises a storage means for storing a plurality of recording media which are usually mounted and detachable as necessary, and an optional recording medium among the plurality of recording media stored in the storage means. A recording medium selecting means for selecting and taking out the medium and returning the medium to its original position; a reproducing means for reproducing a signal recorded on the recording medium selected by the recording medium selecting means; The storage means and the storage means, wherein content information representing the contents of the plurality of recording media stored in the storage means and which can be read out and read from the content information are detachably attached to the storage means as necessary. Storage means for storing in the apparatus main body, and a recording medium recognition signal for extracting a recording medium recognition signal for recognizing the recording medium from the recorded content of the recording medium taken out by the reproducing means Output means; stored music content information extracting means for reproducing information from the recorded content of the recording medium taken out by the reproducing means to indicate what the recorded content of the recording medium is; and the stored music content information Display means for displaying content information and the like output by the extraction means; information output from the stored music content information extraction means and indicating the recorded content of the recording medium being reproduced by the reproduction means; and Storage control means for storing a storage medium recognition signal for recognizing the storage medium extracted by the storage medium recognition signal extraction means in the storage means; and what is the recorded content of the storage medium by the storage control means The recording medium in which the content information indicating the recording medium and a recording medium recognition signal for recognizing the recording medium are stored in the storage unit is reproduced by the reproduction unit. A recording medium recognizing means for recognizing which recording medium the recording medium is from, based on a recording medium recognizing signal for recognizing the recording medium extracted by the recording medium recognizing signal extracting means; Read control means for controlling to read out content information indicating what is recorded on the recording medium from the storage means by means of an output of the means; and what is the recorded content of the recording medium read from the storage means. And read information processing means for processing the content information representing the information so as to be displayed on the display means and displaying the information on the display means.

With the above configuration, the recorded contents of the recording medium can be ported to other storage means by the storage content transplanting means. Therefore, the recording medium currently being reproduced by the reproducing means is a recording medium with the title of Among them, it is possible to directly display the title content itself indicating what title part is being reproduced on the display means, and it is also possible to display the recorded content without reproducing the recording medium, The information representing the recorded contents can be recorded and duplicated on, for example, a RAM card or an IC card, thereby improving the operability of the reproducing apparatus.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a main part in a reproducing apparatus according to one embodiment of the present invention. In FIG. 1, 11 is the first
The recording medium is a recorded recording medium such as an optical disk recording medium such as a compact disk or a magnetic recording medium such as a DAT. In this embodiment, a compact disk (CD) will be described. Reference numeral 12 denotes a storage means for storing a plurality of recording media 11 called a changer magazine, which is usually detachable from the main body of the reproducing apparatus, and is stored by the user in a state where the recording medium 11 is taken out from the main body of the reproducing apparatus. Means 12
It is attached to and stored in. Reference numeral 13 denotes an information storage medium called a RAM card or an IC card which uses a solid-state memory element such as a static RAM or a dynamic RAM and is backed up so that its contents are not erased by a dry cell power supply or the like. . Numeral 14 denotes a recording medium storage means, which is a mechanism having a space for storing the storage means 12 and the storage means 13 in the apparatus main body. Reference numeral 15 denotes a recording medium selecting unit, which selects an arbitrary recording medium 11 from the plurality of recording media 11 in the storage unit 12 and removes the selected recording medium 11 from the storage unit 12, and also stores the removed recording medium 11 under the storage unit 12. Function to return to the position. Reference numeral 16 denotes a reproducing unit that reproduces a signal recorded on the recording medium 11 and forms a reproduced signal. The reproducing unit 16 corresponds to an optical disk reproducing device such as a CD player or a device such as a DAT reproducing device. A means for reproducing a CD is shown. Reference numeral 17 denotes a recording medium recognition signal extracting means for extracting a recording medium recognition signal for recognizing the recording medium 11 from the recorded contents of the recording medium 11 taken out by the reproducing means 16. Numeral 18 denotes an input means which enables a user to input information by typing a keyboard, which is an aggregate of push-button switches, and communication input from a device such as a personal computer. Reference numeral 19 denotes a display means which can be realized by a cathode ray tube television, a liquid crystal display television, a fluorescent tube display element, and the like. In this embodiment, a liquid crystal display element is used. 20 is a storage control means, a reproduction means inputted by the input means 18
Content information indicating what is recorded on the recording medium 11 reproduced in 16 and a recording medium recognition signal for recognizing the recording medium 11 extracted by the recording medium recognition signal extracting means 17 are stored in the storage means 13. It is something to memorize. Reference numeral 21 denotes a recording medium recognizing unit. The recording control unit 20 stores information indicating what is recorded on the recording medium 11 and a recording medium recognizing signal for recognizing the recording medium 11 in the storage unit 13. If the medium 11 is reproduced by the reproducing means 16, the recording medium recognition signal for recognizing the recording medium 11 extracted by the recording medium recognition signal extracting means 17 is used to recognize which recording medium 11 the recording medium 11 is. is there. Reference numeral 22 denotes a read control unit, which controls reading of content information indicating what is recorded on the recording medium 11 from the storage unit 13 by the output of the recording medium recognition unit 21. Reference numeral 23 denotes read information processing means for storing content information indicating what is recorded on the recording medium 11 read from the storage means 13 and processing it so that it can be displayed on the display means 19 and displaying it on the display means 19 It is. Numeral 24 denotes stored music content information extracting means for extracting content information indicating what is recorded on the recording medium 11 being reproduced from the recorded content on the recording medium 11 retrieved by the reproducing means 16. Reference numeral 25 denotes an operation unit, which is a group of operation switches for the user to select and designate the recording medium 11 to be reproduced by the reproduction unit 16. 26 is a reproduction position detection means, which is a recording medium based on a reproduction signal from the reproduction means 16.
Detects the current playback position of 11 and displays the detected position
It is intended to be displayed at 19. 27 is a storage content transplanting means, which reads out the content information of the recorded music written in the storage means 13 and stores it in the information processing means 23, replaces the storage means 13 with another storage means, and stores the contents in a new storage means. It is intended to port information. Reference numeral 28 denotes a microcomputer, which is a recording medium recognition signal extraction unit 17, a storage control unit 20, a storage medium recognition unit 21, a read control unit 22, and a read information processing unit 2.
3, stored music content information extraction means 24, playback position detection means 26,
It has the function of the storage content transplanting means 27.

Regarding the operation of the playback apparatus configured as described above,
FIG. 5 is a diagram illustrating the format of the Q channel of the CD subcode, FIG. 3 is a diagram illustrating the TOC (TABLE OF CONTENTS) information of the CD, FIG. 4 is a flowchart showing the main part of the processing operation of the microcomputer, FIG. Description will be made with reference to FIGS.

First, it is assumed that the power supply necessary for the operation of the microcomputer 28 and the necessary initial setting operation have been completed.

The storage means 12 into which the recording medium 11 in which the storage means 13 is mounted is stored in the recording medium storage means 14 of the playback apparatus main body.
The mounting enables the recording medium 11 in the storage means 12 to be reproduced. Here, the storage means 12 has 5
When the user inputs and designates, for example, “B” to the recording medium 11 to be reproduced by the operation means 25 assuming that one CD is stored, the recording medium selection means 15 selects the first storage medium designated by the user from the storage means 12. Recording medium 11 indicated by "B" in the figure
Are automatically taken out and attached to the reproducing means 16.

Next, as shown in the flowchart of FIG. 4, the TOC information of the CD is read in step 41. Here, the subcode signal and the TOC signal included in the reproduction signal of the CD will be described.

The CD subcode signal has 98 blocks of a CD recording signal of 7.35 KHz and forms one block. The subcode signal of 8 bits per frame has P, Q,
R, S, T, U, V, W channels are named.

Of the signals from P to W, the P and Q channels are used to provide a program function for cueing the music and playing back according to a preset order. Does not specify what purpose it is used for.

As shown in FIG. 2, the Q channel signal indicates positional information such as the number of the currently reproduced signal. From this signal, for example, if the tune number (TNO) is "12", it is known that the twelfth tune of the CD is currently being reproduced, and the display means 19 indicates this as shown in the conventional example of FIG. Can be displayed.

On the CD, information such as the TOC signal, the number of the last song recorded on the CD, the performance end time position of all songs, and the start time position of each performance song, is recorded on the innermost circumference of the CD. As shown in FIG. 3, in the Q channel signal, the tune number (TNO) = “00” is the TOC signal, and the type of information indicated by the value of the index (X) is different.
= "A1" is the last song number (LAST TNO), X = "A
2 "allows you to obtain information such as the performance end time (TOTAL TIME) of all songs on the CD.
Step 41 reads more.

Next, at step 42, the T corresponding to the read TOC signal
It is determined whether or not the OC information has already been registered in the storage means 13. First, in FIG. 5 (a) and FIG.
Describes the registration format of the content information of the CD in.

FIG. 5 (a) shows the registered contents of the CD content information in the storage means 13 and the format thereof. As the TOC information, the essence is extracted and registered from the TOC signal read from the CD so that the difference is as large as possible for each CD. Here, for the sake of simplicity, only the number of the last song and the performance end time of all songs are registered. CD after this TOC information
The title name (CD name), the song number is the name of the first song (the first song name), the second song name,..., The final song name, and so on. ), Information is registered for each of a plurality of CDs.

Assuming that the TOC information of the CD has not been registered in the storage means 13 at all, the process proceeds from step 42 to step 44, where the CD being reproduced is stored in the bits from S to W of the subcode signal. And CDs containing the song titles for each song number
Is determined. Here, if it is assumed that a CD having no title or the like is used, the process proceeds to step 46, and it is determined whether or not an operation of inputting the title of the CD has been performed. Assuming that the user has input a title name through the input means 18, the title name is registered in the storage means 13 together with the TOC information in step 47 as shown in FIGS. 5 (a) and 5 (b).

Next, in step 48, it is determined whether or not an operation input for playing the CD has been made on the operation means 25. If the user has not performed such an operation, the process proceeds to step 49, and it is determined whether or not the user has performed an operation of designating the track number of the CD. For example, if the user designates the first song, a song number "1" is displayed on the display means 19 in step 50, and the song name corresponding to the song number of the CD is already registered in the storage means 13 in step 51. It is determined whether or not the music title has not been registered yet, so that the process proceeds to step 52, where it is determined whether or not the input operation of the music title corresponding to the music number has been performed. If the user inputs a song title from the input means 18, the TOC information of the CD, the song number, and the song title information are stored in the storage means 13 in step 53.
It is registered in the format shown in FIGS.

If the above procedure is performed for a plurality of CDs, the title names and song names of all the CDs stored in the storage means 12 can be registered in the storage means 13 as shown in FIG.

The operation is confirmed according to the flowchart of FIG. 4 using the storage means 12 and the storage means 13 which have been registered in this way. Read TOC signal in step 41 Step 4
Proceeding to 2, it is determined whether or not the information having the TOC information corresponding to the TOC signal read from the CD is in the storage means 13. In this case, since there is corresponding information, the process proceeds to step 43, where information having TOC information corresponding to the TOC signal read from the CD is read from the storage means 13 and the title name of the CD is displayed on the display means 19. .

Here, assuming that the CD of "B" in FIG. 1 is mounted on the reproducing means 16, the information indicated by "B" in FIG. 5B is read from the storage means 13. Microcomputer 28
The title of the CD stored in the internal RAM of the microcomputer 28 is displayed via the liquid crystal display drive circuit of the microcomputer 28.
It is displayed on the liquid crystal display which is 19.

In the next step 48, if the user has performed an operation to start playing the CD on the operation means 25, the process proceeds to step 55, where the current playing song is obtained from the subcode signal of the currently playing CD. Detect turn. Then step 56
The song name corresponding to the detected music number is already stored in the storage means.
It is determined whether or not it is registered in 13.

In the present embodiment, since the information has already been registered, the process proceeds to step 57, where the song name corresponding to the song number being played is displayed on the display unit 19 based on the information read from the storage unit 13, and the song number is also displayed in step 58. In this way, for example, a display as shown in FIG. 6 can be obtained, so that the contents of the performance music can be immediately understood, and a reproducing apparatus much easier for the user to use than the conventional display as shown in FIG. Can be realized.

In addition, even if the display is not playing a CD, if the operation of specifying the track number is performed, step 48, step 49, step
The title and the song title of the CD are changed to the fifth by the information read out from the storage means 13 after performing the processing of steps 50, 51 and 54.
It can be displayed in the same manner as in the figure. For this reason, the song titles of the songs included in the CD can be known simply by specifying the song number without playing the CD, so that when the user wants to select and play only his favorite songs, the song selection becomes easy.

As described above, in the present embodiment, the function of the recording medium recognition signal extracting means 17 is performed in step 41, the function of the storage control means 20 is performed in steps 47 and 53, and the function of the recording medium recognition means 21 is performed in steps 42 and 51. And in step 56, the function of the read control means 22 is changed in steps 42, 43, 51, 54, 56 and 57.
The function of the read information processing means 23 is changed to step 42, step
In step 43, step 51, step 54, step 56 and step 57, the function of the stored music content information extracting means 24 is changed to step 44.
And in step 45, the function of the reproduction position detecting means 26 is realized in step 55.

Regarding the function of the storage content transplanting means 27, when the recording medium 11 is not being reproduced, the storage means is operated by operating the operation means 25.
13 is read out and stored in the information processing means 23, and the storage means 13 is stored in the storage means 12
Together with the storage medium 13
Is removed from the storage means 12, the other storage means 13 is mounted on the storage means 12, and then the storage medium 13 is mounted again to operate the operation means 25. The function can be realized by writing the recorded content information.

As described above, according to the present embodiment, the storage unit is provided with the storage unit that is detachable from the storage unit. The storage unit allows the user to input content information representing the contents of the plurality of recording media 11 stored in the storage unit. From the recording medium recognition signal extracting means 17
And a recording medium corresponding to the recording medium 11 by the storage control means 20
The information representing the contents of the recording medium 11 is written in the storage means 13 or, if the information representing the contents of the recording medium 11 is recorded on the recording medium itself, the recording medium 11 is reproduced by the reproducing means 16. Then, information representing the contents of the recording medium 11 is extracted from the reproduced signal by the stored music content information extracting means 24, and the recording medium is discriminated by the recording medium recognition signal extracting means 17, and the recording medium is discriminated by the storage control means 20. The contents of 11 are written in the storage means 13, and a recording medium recognition signal for recognizing the recording medium 11 is recorded from the recording medium 11 when it is taken out by the recording medium selection means 15 and reproduced by the reproduction means 16. The storage means is extracted by the medium recognition signal extraction means 17 and read out by the read control means 22 through the recording medium recognition means 21.
13, information representing the contents of the recording medium 11 is read, the information is processed by the read information processing means 23, the recorded contents of the recording medium 11 are displayed by the display means 19, and the recorded contents of the recording medium 11 are displayed. By porting the data to the other storage means 13 by the storage content transfer means 27, it is possible to realize a reproduction device which can be easily copied and edited.

In the present embodiment, the storage content transplanting means 27 is the storage means 13
After reading the content information of the recorded music written in the storage means and storing it in the information processing means 23, the storage means 13 is replaced with another storage means 13 and the content information is transplanted to the new storage means 13. The content information of the recorded music piece written in the means may be read out and stored in the other information storage means without being stored in the information processing means 23.

Further, in the present embodiment, the storage content transplanting means 27 reads out the content information of the recorded tune written in the storage means 13 mounted in the recording medium storage means 14, and then exchanges it with another storage means 13 to obtain a new one. Although the content information was to be transplanted to the storage means 13, the content information of the recorded music piece written in another storage means other than the storage medium storage means 14 was read out and stored in the storage means 14 in the storage medium storage means 14. Content information may be transplanted.

In this embodiment, DC is used as a recording medium. However, an optical disk such as a laser disk or a magnetic tape for digital recording and reproduction called DAT is used for audio recording.
Any magnetic tape for video may be used.

Effects of the Invention As described above, according to the present invention, the recording medium currently being reproduced by the reproducing means is a recording medium having a title (title name) as content information. The title itself, which indicates whether the title (song title) part is being played, can be displayed directly on the display means,
The contents can be easily confirmed, and the recorded contents can be displayed without reproducing the recording medium, so that the user can easily select a favorite music and the like. It can also be recorded and duplicated on a card or IC card by means of memory content transplantation, which is convenient for saving the content information as a backup or providing the content information to friends. In addition, if the song name information is recorded in the subcode of the CD in the future and sold, the song name information etc. will be automatically registered in the storage means, which has the excellent effect of further improving the operability. It is.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part in a reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a diagram for explaining a format of a Q channel of a CD subcode, FIG. 3 is a diagram for explaining TOC information of a CD, FIG. 4 is a flowchart showing the main part of the processing operation of the microcomputer of FIG. 1, FIGS. 5 (a) and 5 (b) are explanatory diagrams of the information registration format stored in the storage means of FIG. 1, and FIG. FIG. 7 is a view showing an example of display by the display means of FIG. 1, FIG. 7 is a block diagram showing a configuration of a main part of a conventional reproducing apparatus, and FIG.
The figure shows a display example by the display means of FIG. 11 ... recording medium, 12 ... storage means, 13 ... storage means, 14
...... recording medium storage means, 15 ... recording medium selection means, 16 ...
... Reproduction means, 17 ... Recording medium recognition signal extraction means, 18 ...
Input means, 19 display means, 20 storage control means, 21
... Recording medium recognition means, 22 ... Read control means, 24 ...
Stored music content information extracting means, 27 ... Memory content transplanting means, 28
…… a microcomputer.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 27/00 G11B 17/22

Claims (2)

(57) [Claims] 1. A storage means for storing a plurality of recording media which are normally mounted and detachable as necessary, and selecting an arbitrary recording medium from the plurality of recording media stored in the storage means. Recording medium selecting means for extracting and returning to the original position; reproducing means for reproducing a signal recorded on the recording medium selected by the recording medium selecting means; and content information representing the contents of the plurality of recording media. A storage unit which is readable and can exchange the content information written therein, a storage control unit which stores the content information in the storage unit, a read control unit which reads the content information stored in the storage unit, and the storage A storage content transplanting means for exchanging means and transplanting the storage content information stored in the storage means into the new storage means replaced. 2. A storage means for accommodating a plurality of recording media which are normally mounted and detachable as necessary, and selecting an arbitrary recording medium from the plurality of recording media accommodated in the accommodation means. A recording medium selecting means for taking out and returning to the original position; a reproducing means for reproducing a signal recorded on the recording medium selected by the recording medium selecting means; The storage means which can be detachably attached to the storage means and which represents the contents of the plurality of recording media stored in the storage means and from which the content information can be read, and the storage means are stored in the apparatus body. Storage means for performing, a recording medium recognition signal extracting means for extracting a recording medium recognition signal for recognizing the recording medium from the recorded content of the recording medium extracted by the reproducing means, The stored music content information extracting means for reproducing information from the recorded content of the recording medium taken out by the reproducing means and extracting information indicating what the recorded content of the recording medium is; Display means for displaying content information to be stored, information indicating what is recorded on the recording medium outputted from the stored music piece content information extracting means and being reproduced by the reproducing means, and the recording medium recognition signal extracting means Storage control means for storing a storage medium recognition signal for recognizing the storage medium extracted by the storage means in the storage means, content information indicating what the storage content of the storage medium is by the storage control means, and A recording medium recognition signal for recognizing a recording medium is stored in the storage unit. A recording medium recognizing means for recognizing which recording medium the recording medium is based on a recording medium recognizing signal for recognizing the recording medium extracted by the recording medium recognizing signal extracting means; and an output of the recording medium recognizing means. Read control means for controlling to read out content information indicating what is recorded on the recording medium from the storage means, and content information indicating what is recorded content on the recording medium read out from the storage means And a read information processing means for processing the data so as to be displayed on the display means and displaying the processed data on the display means.