JPS62196693A - Information selective reproducer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Example G-1 Structure of the example (Fig. 1) G -2 Detailed explanation of text (Figure 2) G-3 Detailed explanation of barcode (Figures 3 and 4) G-4 Detailed explanation of DAD used in the embodiment G-5 Detailed explanation of disc player (Figure 2) Figure 5) Specific example of G-6 central control block (Figure 6) H Effect of the invention A Industrial field of application The present invention provides information on recording program information from a disk, which is an information recording medium on which program information is recorded. The present invention relates to an information selective reproducing device equipped with a disc player that can selectively reproduce a desired portion of the disc.

B. Summary of the Invention The present invention is capable of selectively reproducing a desired portion of recorded program information from a disc, which is an information recording medium on which program information is recorded, such as a digital audio disc. In an information selective playback device equipped with a disc player, the disc player is provided with a barcode reading unit, and the selective playback operation of program information recorded on the disc by the disc player corresponds to at least two channels of program information recorded on the disc. control according to the successive outputs of a barcode reader in response to a barcode placed on a text with written content, and which includes channel information that specifies the barcode as one or both of two channels of program information. so that the playback output obtained from the disc player is set as playback program information of two channels or playback program information of one of the two channels according to the channel information included in the barcode read by the barcode reading section. By doing so, it is possible to select a channel and obtain desired playback program information from a disc player by an extremely simple operation without taking one's eyes off the text.

C. Conventional Technology A digital audio disk (hereinafter referred to as DAD) is used, in which an audio signal is digitized and recorded as program information on a rotating disk-shaped recording medium, and a spiral recording trunk is formed. A DAD system in which an audio signal, which is program information recorded on a DAD, is played back by a disc player has been proposed as an audio signal playback system that can obtain high-quality playback audio signals.

Such a DAD records, for example, two-channel program information, which is left and right signals forming a stereo music signal, and a disc player that reproduces the program information receives the two-channel program information from the DAD, that is, The left and right signals that form a stereo music signal are
It is assumed that they can be separated individually and obtained simultaneously.

Furthermore, in a DAD, for example, two channels of program information recorded therein are in the form of a collection of a plurality of segmented program information, each corresponding to each piece of music, etc., and may be accompanied by address data. It is considered as a side. This address data is, for example, data usually called a track number (hereinafter referred to as TNO), which indicates the recording arrangement order from the reproduction start end of each section program information.
Indicates the order of subdivisions within one division program information,
Usually, data called index (hereinafter, INDE
X), and time data (hereinafter referred to as T, A.

), etc.).

In the DAD, the innermost circumferential side of the spiral recording track is normally set as the playback start point, and the outermost circumferential side is set as the playback end. Therefore, when normal playback is performed by a disk player, the center of the disk is The read head of the disc player is moved to perform a playback operation from the inner side to the outer side. In playing the program information from the DAD in this way,
Since address data as described above is recorded along with each segment program information, the read head of the disc player can be directed to a desired recording position on the disc, for example, for a specific segment program, using the playback address data. This makes it possible to selectively reproduce specific section program information and subsequent section program information by moving the information to the recorded position, and moreover, to move the read head to the desired recording position on the disk very quickly. It becomes something that can be done.

By taking advantage of the characteristics of such a DAD system, for example, a training DAD is prepared in which program information corresponding to the contents of a foreign language training text containing a foreign language and its translations is recorded, so that learners can , the content of the text,
It is conceivable to configure an educational device that allows learning to be performed in combination with reproduction of program information recorded in a training DAD by a disk player. In the teaching DAD used in such educational devices, the content of the text is, for example, the entire plurality of sentences in each item constituting the text is classified program information, and each of the plurality of sentences in each item is classified. TNO, which is recorded as a subdivision within program information, and when recorded, changes sequentially for each of multiple sentences in each item,
INDEX that changes sequentially for each of multiple sentences within one item, and INDEX that changes sequentially across multiple sentences within one item <T,
It is assumed that address data including A is attached.

Therefore, when playing back program information corresponding to the content of the text from the training DAD using a disc player, the playback address data is used to play back from the desired item.

It is possible to reproduce from a desired one of a plurality of sentences in a specific item, or from a desired position in a plurality of sentences in a specific item.

D. Problems to be Solved by the Invention However, in an educational device using a disc player as described above, address data recorded in the training DAD is used to create program information recorded in the training DAD. When performing selective playback from a specific location, the TNO and IND corresponding to that specific location are
It is necessary to input address data such as EX, T, A, etc. by operating data input keys provided on the disc player. Therefore, when learning the content of the text by using a disk player to play back the program information recorded in the training DAD, the learner frequently reads the text every time he or she operates the input key provided on the disk player. This results in the inconvenience of having to take one's eyes off the address data input operation, and also puts the user in a state where errors in inputting address data are likely to occur.

Furthermore, in conventional disc players, although it is possible to separate the two channels of program information recorded on the DAD and play them simultaneously, it is possible to selectively reproduce only one of the two channels of program information. It is not possible. Therefore, in an educational device using such a disc player, for example, when the text is a foreign language teaching text, the teaching DAD is
Program information corresponding to a foreign language sentence forming the content of the text is set as program information of the first channel, and
It is assumed that the program information corresponding to the translation of the foreign language sentence is recorded as the program information of the second channel, and the program information corresponding to the foreign language sentence and the program information corresponding to the foreign language sentence are recorded from the training DAD by the disk player. There is an inconvenience in that it is not possible to use the foreign language in an effective way to improve the learning results, such as individually selecting and reproducing the program information corresponding to the translated sentences.

In view of these points, the present invention provides text having contents corresponding to at least two channels of program information recorded on a disc with address data, and text having content corresponding to program information of at least two channels recorded on a disc with specific address data. The disc player is equipped with a disc player that can selectively reproduce program information, and the operator can play the disc according to the text content using extremely simple operations without taking his eyes off the text. 2. It is possible to reproduce a desired part of recorded program information and to obtain the reproduction output at the same time.
Information selection reproduction suitable for use as an educational device, which can selectively take a state where the reproduction program information of a channel is displayed or a state where only one of the reproduction program information of two channels is reproduced. The purpose is to provide equipment.

E. Means for Solving the Problems In order to achieve the above-mentioned object, the information selection and playback device according to the present invention provides text or pictures corresponding to at least two channels of program information recorded on a disc together with address data. is written, and a bar code containing address information representing address data and channel information specifying both or three of the two channel program information is placed adjacent to the text or picture. , and a disc player equipped with a barcode reader for reading barcodes from this text. Then, the disc player performs an information reproducing operation that operates to reproduce specific address data and program information recorded on the disc in accordance with the address information included in the barcode read from the text by the barcode reading section. and the channel information included in the read barcode, the reproduction output obtained from the information reproduction operation section is either the reproduction program information of two channels obtained at the same time, or the reproduction program information of those two channels. and a playback channel control section.

2 Functions In the information selection and playback device according to the present invention configured as described above, the operator can form a specific one of the barcodes arranged on the text into a pen shape that can be freely handled with one hand. When a reading operation is performed using the barcode reader, the information playback unit of the disc player reads one of the two channels of program information recorded on the disc according to the address information included in the barcode read from the text. , the barcode read out in the text assumes an operating state for reproducing what corresponds to the characters or pictures that are arranged in close proximity. At the same time, the playback channel control section of the disc player controls the two channels corresponding to the characters or pictures that the barcode read out in the text is arranged in close proximity to, obtained from the information playback operation section. The reproduction output of the program information, that is, the selection of the reproduction program information of two channels is performed according to the channel information included in the barcode read from the text. As a result, the two channels of program information corresponding to the characters or pictures on the text that are placed close to the barcodes read by the barcode reader by the operator are transferred to the disc player. The disc will be played back in a state that can be obtained simultaneously or in a state that can be obtained by selecting one of them.

By doing this, the operator can perform extremely simple operations without taking his eyes off the text, for example, by simply scanning a selected one of the barcodes placed on the text with the barcode reader. Through an operation, a desired portion of the program information recorded on the disk is reproduced under the condition that the reproduction output is only one of the two channels of reproduction program information or the two channels of reproduction program information, This can be done in accordance with the content of the text.

G Example c-i Configuration of Example (FIG. 1) FIG. 1 shows an example of an information selection and reproduction apparatus according to the present invention. This example includes an optical disc player 12 that reproduces information about the DAD described above and obtains a reproduction output of two channels of program information and address data recorded on the DAD, and an optical disc player 12 that reproduces information from the disc player 12. Characters or pictures 13 corresponding to the two-channel program information recorded on the provided DAD are written,
In addition, the text 16 includes a barcode 14 containing information corresponding to the address data recorded in the DAD, placed adjacent to the text or picture 13.

The disc player 12 is provided with a disc insertion slot 20 in its front panel part 18, and the DAD is inserted through the disc insertion slot 20 and mounted to an internal disc mounting part.

The front panel section 18 also includes a device for removing the DAD mounted in the disc mounting section from the disc mounting section and taking it out from the disc insertion slot section 20. (Various operation buttons 24 to be operated. TNO, INDEX or T, A in DAD when reproducing information from DAD.)

a data input key 26 operated to specify, etc.
A display section 28 and the like that performs various displays depending on the operating state are also provided.

Furthermore, the disc player 12 is equipped with a barcode reading section 30 for reading the barcode 14 placed on the text 16. This barcode reading section 30 is connected to one end of a lead wire 32 extending from the end of the front panel section 18 of the disc player 12 to the outside of the disc player 12, and is formed entirely into a pen shape so that the operator can use it with one hand. It is designed so that it can be handled freely. The barcode reading unit 30 reads the barcode 14 placed on the text 16 by scanning the barcode 14 with the tip of the barcode reading unit 30.

Detailed explanation of G-2 text (Figure 2) Text 16 is, for example, an English conversation teaching text, and includes words and sentences in English and Japanese as shown in Figure 2, and related texts. It is assumed that the page includes a plurality of barcodes. In the page shown in FIG. 2, the barcode 14 is located near the words "Li5ten!" and "He1p!" in "Lesson 1", which is one of the multiple items in the text 16. T mentioned below
R, L, mode barcodes 14a are arranged, and 1, L, which will be described later, of the barcodes 14 are placed before each of the plural English sentences following the words "Li5ten!" and "He1p!" , a mode barcode 14b is arranged. Furthermore, in the text 16, although not appearing in FIG. 2, barcodes for T, L, and mode among the barcodes 14, which will be described later, are placed in predetermined portions of multiple English sentences related to one item. are also arranged.

In this way, in this example, the barcodes 14 arranged in the text 16 are TR, L, mode barcodes,
1. They are classified into L, mode barcodes and T,L, mode barcodes. The TR, L, and mode barcodes cause the disc player 12 to play only the segmented program information portion to which a specific TNO is attached, out of the 2-channel program information recorded on the DAD, and pause after playback. Trunk number/
It is a barcode for setting the location mode (TR, L, mode) state, and also includes 1. L. The mode barcode is a subdivision part to which a specific INDEX is attached within the division program information part to which a specific TNO is attached, of the two channels of program information recorded in the DAD of the disc player 12. This is a barcode for entering the index location mode (1, L, mode) state, which plays only the 1st file and enters a pause state after the playback. , the disc player 12 receives only the portions marked with T and A representing specific periods within the segmented program information portions marked with specific TNOs, out of the two channels of program information recorded on the DAD. This is a bar code for causing the user to play the data and enter the time/location mode <T, L, mode) state, which performs an action that becomes a pause state after the playback.

Detailed explanation of the G-3 barcode (Figures 3 and 4) The barcode formats forming each of the above-mentioned barcodes include, for example, a shortened version as shown in Figure 3A and a shortened version as shown in Figure 3A. The standard version as shown is used. The shortened version is the first character X, ~
Consists of 7 characters, 7th character X,
Also, the standard version has the 1st character X, ~ 11th character
It consists of 11 characters: character X. Each character in the shortened version and the standard version is composed of seven modules m1 to m, as shown in FIG. 3C. Each module is assumed to represent O or 1, and each character is assumed to represent 0 or 1 in the manner as shown in FIG. , decimal 0~
It is said to represent the number 9.

The barcode for TR, L, mode is formed in a shortened version as shown in FIG.
The fourth characters X3 and X4 each represent one of O to 9 to designate a TNO whose content is one of O to 99, and furthermore, the seventh character X7, which is the final character, is 0.1. Alternatively, it represents 2, and 0 indicates a state in which reproduction program information of two channels should be obtained simultaneously (2-channel state), and 1 indicates a state in which reproduction program information of one of the two channels (first channel) should be obtained ( 1st channel state), 2
Accordingly, the state Li (second channel state) in which the reproduction program information of the other of the two channels (second channel) should be obtained is specified. Also, ■
.

The barcode for L mode is as shown in Figure 4B.
formed in a shortened version, with the first and second characters X1 and X2 representing 0 and 1, respectively, and the third
and a TNO in which the fourth character vectors X3 and X4 each represent one of 0 to 9, and the content is one of 0 to 99.
The fifth and sixth characters X and X each represent one of 0 to 9 and designate an INDEX whose content is one of 0 to 99,
Furthermore, the seventh character X, which is the final character, is 0
, 1 or 2, 0 designates the 2 channel state, 1 designates the first channel state, and 2 designates the second channel state, respectively.

Additionally, the T, L, mode barcode is formed in both a shortened version and a standard version, as shown in FIG. 4C. In the shortened version, the first and second characters X+ and X2 represent 0 and 2, respectively, and the third and fourth characters x3 and X4 represent any of O to 9, respectively, and θ A TNO whose content is one of 99 to 99 is specified. In addition, in the standard version part, the first to tenth characters X, ~X,. represent any one of θ to 9, and the first to fifth characters x1 to X.

specifies the playback start point, and the 6th to 10th characters X,
~X1° specifies the playback end point. At the start of playback,
The first and second characters XI and X2 are designated to represent minutes, the third and fourth characters X and X4 are designated to represent seconds, and the fifth character X is designated to represent the number of frames, and the playback ends. The time point is the 6th and 7th character
and X, the eighth and ninth characters x8 and X,
is designated as seconds, and the tenth character X1° is designated as representing the number of frames. Furthermore, the final character in the standard version part, the 11th character shall be specified.

In this way, TR and L in the barcode 14.

Mode barcode, 1. The L, mode barcode and the T, L, mode barcode each specify address information representing address data in the DAD, and one of the 2 channel state, the 1st channel state, and the 2nd channel state. It is assumed that the channel information includes the channel information.

G-4 Detailed explanation of the DAD used in the embodiment The DAD used in connection with the text 16 as described above is the entirety of a plurality of sentences constituting each item of the text 16, for example, "Lesson 1" shown in FIG. 2. The word "He" in
1p! The two-channel program information corresponding to the entire plurality of sentences following "" is treated as segmented program information, and each of the plurality of sentences, for example, "L" shown in FIG.
The word “He1p! The portions corresponding to each of the multiple sentences following "" are considered subdivisions in the segmented program information, and the program information of these two channels is TNO, 1, L, mode specified by each bar code attached to each item. A spiral recording track is formed by recording address data including INDEX specified by the barcode for the mode, T, L, and T, A specified by the barcode for the mode. The program information of the two channels is such that, depending on the page of the text 16, the program information of the first channel corresponds to the English text as shown in FIG. The program information of the second channel corresponds to the Japanese translation of the English text.

Detailed explanation of the G-5 disc player (Fig. 5) Fig. 5 shows the configuration of an example of the disc player 12, and the disc 41 installed in the disc player 12 is used in connection with the text 16 mentioned above. It is a DAD that is
A predetermined rotation is applied by a disk rotation motor 42. In this disk 41, two channels of program information and address data are recorded, for example, in an array of many pits so that they can be read out optically, and an optical head serving as an information reading means is used. 43
Read by The optical head 43 irradiates the disk 41 with a light beam such as a laser beam, and
A light beam modulated according to one recording track and reflected is received by a photodetector to generate a read signal S. Therefore,
The point at which the light beam from the optical head 43 reaches on the disk 41 becomes the reading position on the disk 41 by the optical radar 43. Furthermore, the optical head 43
It has a built-in focus control means for keeping the light beam incident on the disk 41 in an appropriate focused state, and a tracking control means for making the light beam incident on the disk 41 properly follow the recording track. disc 4
1 radial direction, that is, across the recording trunk.

The read signal S obtained from the optical helad 43 is supplied to the read signal processing unit 44, and from the read signal processing unit 44, a reproduction output signal Sp of program information and address data, a focus error signal Sf and a tracking error signal 3t are output. is obtained. The focus error signal Sf is supplied to the focus control drive unit 45, and based on this, the drive signal CI is sent from the focus control drive unit 45 to the optical head 43.
The focus servo control is performed by supplying the focus control means to the focus control means. Further, the tracking error signal St is supplied to the reading position control unit 46, and based on this, the drive signal C2 is supplied from the reading position control unit 46 to the tracking control means of the optical head 43 to perform tracking servo control.

Furthermore, the reproduced output signal Sp of the program information and address data obtained from the read signal processing section 44 is supplied to a decoder 47, from which the reproduced program information P is obtained and the reproduced address data Q is detected. . Then, the reproduction program information P is supplied to the program information processing section 48, and the reproduction digital program information signal Pa is obtained from the program information processing section 48 and is supplied to the digital/analog conversion section (D/A conversion section) 49. Ru. The D/A converter 49 outputs two channels based on the reproduced digital program information signal Pa.
That is, the first and second reproduction program information AL and AR
is obtained in the form of an analog signal. These first and second
The reproduction program information signals AL and AR of the channels are sent to the reproduction output terminal through a muting section 50 and a switch group 53 that selectively performs a muting operation on the reproduction program information signals AL and AR of the first and second channels. 5I and 52.

The switch group 53 is formed by three pairs of switches 54 and 55, 56 and 57, and 58 and 59, which are interlocked with each other.

On the other hand, the reproduction address data Q is supplied to a decoding circuit 61 in the system control section 60, and from this decoding circuit 61, the reproduction address data Selected playback address data D is obtained by selecting TNO, INDEX, and T and A included in data Q, and this selected playback address data D is supplied to the first register 63 and held. Ru. Then, the selected reproduction address data D is read out from the first register 63 at a predetermined timing based on the control signal Cn from the second output terminal 0□ of the central control block 62. Supplied to one input end.

The system control unit 60 is configured to be supplied with key power from the data input keys 26, and the key power data K obtained by operating the data input keys 26 is supplied to the system control unit 60 from the first key power data K obtained by operating the data input keys 26. Supplied to input terminal ■1. In addition, data input based on the output of the barcode reading section 30 is also supplied to the system control section 60, so that the barcode 14 placed on the text 16 is read by the barcode reading section 30. The output signal Ba of the barcode reading section 30 obtained by reading is supplied to the control data generation section 65, and the control data generation section 65 generates control data Bb corresponding to the barcode 14 read by the barcode reading section 30. is formed and is supplied to the second input terminal 2 of the central control block 62.

The central control block 62 generates designated address data Dx in response to the key manual data or control data Bb, which is supplied from the third output terminal O1 of the central control block 62 to the second register 66. It is held. The specified address data Dx from the second register 66 is then supplied to the other input terminal of the comparison operation circuit 64. The comparison operation circuit 64 performs a comparison operation between the selected reproduction address data D and the designated address data Dx, and the operation data DO based on the operation result is supplied to the third input terminal I3 of the central control block 62.

Further, the central control block 62 is supplied with selected reproduction address data D obtained from the decoding circuit 61 from its fourth input terminal 4.

A control signal Cc for controlling the reading position by the optical head 43 is supplied from the fourth output terminal 04 of the central control block 62 to the reading position control section 46, and the reading position control section 46 is supplied with the control signal Cc. In response to this, drive signals C2 and C3 are generated and supplied to the optical head 43. Also, the fifth output terminal 0. of the central control block 62. A muting control signal Cm is obtained from the muting section 50, and is supplied to the muting section 50. Furthermore, the sixth, seventh and eighth output terminals -0, .
0, and o8, three types of switch control signals WS, W
The switch control signal WS is supplied to the switches 54 and 55, the switch control signal WL is supplied to the switches 56 and 57, and the switch control signal WR is supplied to the switches 58 and 59.
, WL and WR are controlled to turn on and off the switches 54 to 59.

With this configuration, when the barcode 14 placed on the text 16 is read by the barcode reading unit 30, the control data generation unit 65 generates control data Bb corresponding to the read barcode to the central control block. 62 second input terminal (2). The central control block 62 receiving this control data Bb reads the barcode represented by this control data Bb, that is, the barcode reading unit 3
The barcode read by 0 is TR,L.

Mode barcode, 1. In addition to detecting whether the barcode is L, mode barcode or T, L, mode barcode, the channel information possessed by the last character of the barcode represented by control data Bb is 2 channels regarding playback program information. It is determined which of the state, the first channel state, or the second channel state is specified.

As a result, the central control block 62 sends out the switch control signal WS to turn on the switches 54 and 55 and keep the switches 56 to 59 off when the two-channel state is specified; Reproduction program information AL and A obtained through the muting section 50
Both of R are individually led out to reproduction output terminals 51 and 52, respectively. In addition, when the first channel state is specified, the switch control signal WL is sent to turn on the switches 56 and 57, and keep the switches 54, 55, 58 and 59 off, thereby muting. The reproduction program information AL of the first channel of the reproduction program information AL and AR obtained through the section 50 is outputted to both reproduction output terminals 51 and 52. Furthermore, when the second channel state is designated, the switch control signal WR is sent to turn on the switches 58 and 59, and keep the switches 54 to 57 off, and the muting section 5
The reproduction program information AR of the second channel of the reproduction program information MAL and AR obtained through 0 is outputted to both reproduction output terminals 51 and 52. In this way, the switch group 53 and the central control block 62 form a reproduction channel control section.

Along with this, the central control block 62 controls the control data B
When the barcode represented by b is a TR, L, mode barcode, the optical head 43 outputs the reproduction output terminal 51.
Control is performed to cause the information reproducing operation section, which includes the sections leading to and 52 and the system control section 60, to take the TR, L, and mode states. Therefore, the central control block 62 sends the muting control signal Cm to put the muting section 50 into the muting operation state, and the TR,
Specific TN specified by code for L mode
Specified address data Dx whose content is O is supplied to the second register 66. Then, the specified address data Dx is supplied from the second register 66 to the comparison operation circuit 64.

At this time, the first register 63 contains the contents of the control data Bb from the central control block 62.
1 (based on the number Cd), selected reproduction address data D representing TNO is supplied from the decoding circuit 61, and this is sent out in response to the control signal Cn from the central control block 62 and supplied to the comparison calculation circuit 64. Then, the comparison operation circuit 64 performs a comparison operation between the specified address data Dx and the selected reproduction address data D. As a result, if the two address data do not match,
A control signal Cc is supplied from the central control block 62 to the reading position control unit 46 in accordance with the calculation data DO. The reading position control unit 46 receives the control signal Cc and outputs the drive signal C.
1 and causes the optical head 43 to move in the radial direction of the disk 41, and also sends a drive signal C2 to cause the tracking control means built in the optical head 43 to perform a track jump operation, etc. The optical head 43 is assumed to perform a search operation.

In a state where the optical helad 43 performs a search operation, a comparison operation is performed between the selected reproduction address data D and the designated address data Dx in the comparison operation circuit 64, and the content of the control signal Cc is determined based on the result of the operation. The optical head 43 is changed so that the selected reproduction address data D matches the specified address data Dx.
The reading position is controlled by

Then, the selected playback address data D becomes the specified address.
If it matches the data Dx, that is, the reading position by the optical head 43 is TR,L.

When the beginning of the segmented program information with the TNO specified by the mode barcode is reached, the content of the control signal Cc causes the optical head 43 to complete the search operation and perform the normal playback operation. shall be made to do so. In addition, the central control block 6
2 stops sending out the muting control signal Cm and causes the muting section 50 to stop the muting operation.

As a result, the D/A converter 49 outputs the TR.

L, recorded segment program information with TNO specified by mode barcode, i.e. text 1
The reproduction program information AL and AR of the first and second channels related to the program information corresponding to the entire sentence of the specific item in 6 are obtained, and are supplied to the switch group 53 after passing through the muting section 50. . At this time, the switches 54 to 59 constituting the switch group 53 are controlled according to the channel information included in the final character of the TR, L, and mode barcodes as described above, and The reproduction program information AL and AR of the first and second channels are TR, L
, according to the channel information of the final character of the mode barcode, the state is led out to the playback output terminals 5I and 52 through the switches 54 and 55, respectively, and the playback program information AL of the first channel is played back through the switches 56 and 57. The state derived to both the output terminals 51 and 52, or the playback program information AR of the second channel of them, is output to the switches 58 and 5.
9 to both reproduction output terminals 51 and 520.

In this way, the information reproducing operation unit is TR, L.

first and second channels for segmented program information with TR, L, and TNO specified by the mode barcode, i.e., program information corresponding to the entire sentence of a specific item in the text 16; When both or one of the playback program information AL and AR is led out to the playback output terminals 51 and 52, the central control block 62 receives the selected playback address data supplied from the decoding circuit 61 through the fourth input terminal 4. The contents of D are monitored, and when the contents change from the TNO specified by TR, L and the mode barcode, that is, TR, L
, when the reproduction of the segmented program information with the TNO specified by the mode barcode is completed, the information reproduction operation section is controlled to take a pause state.In controlling to take such a pause state, the central control block 6
2 transmits the contents of the control signal Cc to the reading position control section 46,
The movement of the optical disc 43 along the radial direction of the disk 41 is stopped so that the reading position is set to the disk 41.
control to repeat a state of following a specific round in the recording trunk of the recording trunk, and transmit a muting control signal Cm to cause the muting section 50 to take a muting operation state; Neither reproduction program information AL nor AR is led out to reproduction output terminals 51 and 52.

Further, the central control block 62 is configured such that the barcode represented by the control data Bb is 1. If it is a barcode for L mode, 1. L.

Controls the mode state. In this case as well, the central control block 62 puts the muting section 50 into the muting operation state and sets the I value at that time.

L, specific TNO specified by mode barcode
and specified address data Dx whose content is INDEX
is supplied to the second register 66.

Then, the specified address data Dx is supplied from the second register 66 to the comparison operation circuit 64.

At this time, the first register 63 is supplied with selected playback address data D representing TNO and INDEX from the decoding circuit 61 based on the control signal Cd, which is then supplied with the control signal Cd from the central control block 62. 11 (is sent out in response to the signal Cn and supplied to the comparison calculation circuit 64. Then, the central control block 62 determines the above-mentioned TR, L, mode based on the calculation data DO obtained from the comparison calculation circuit 64. As in the case where the optical head 43 is in the state where it performs the -chi operation, as a result, the selected playback address and
When the data D matches the specified address data Dx, the optical radar 43 is caused to complete the search operation and perform an operation for normal reproduction. At the same time, the transmission of the muting control signal Cm is stopped, and the muting section 50 is made to stop the muting operation.

As a result, the D/A converter 49 outputs 1. L.

TNO and IND specified by mode barcode
The reproduction program information AL and AR of the first and second channels related to the subdivision of the classified program information recorded with EX, that is, the program information corresponding to a specific sentence in a specific item in the text 16 is After passing through the muting section 50, the switch group 53
is supplied to At this time as well, the switches 54 to 59 constituting the switch group 53 are set to I as described above.

The reproduction program information AL and AR of the first and second channels that have passed through the muting section 50 are controlled according to the channel information included in the final character of the barcode for mode. L.

According to the channel information included in the final character of the mode barcode, the state is led out to the playback output terminals 51 and 52 through switches 54 and 55, respectively, and the playback program information AL of the first channel is output through switches 56 and 57. The state led to both terminals 51 and 52, or the playback program information AR of the second channel of them, is output to switches 58 and 59.
It is placed in a state where it is led out to both the playback output terminals 51 and 52 through the playback output terminals 51 and 52.

In this way, the information reproducing operation section 1. L, take mode state, 1. L, subdivision of program information with TNO and INDEX specified by mode barcode, i.e., first and second subdivisions of program information corresponding to a specific sentence in a specific item in the text 16;
When both or one of the playback program information AL and AR of the channel is output to the playback output terminals 51 and 52, the content of the selected playback address data D is monitored by the central control block 62, and the content is changed to 1. ．． L
, when the INDEX changes from the one specified by the mode barcode, that is, 1. L.

TNO and IND specified by mode barcode
When the reproduction of the subdivision of the classified program information with EX is completed, the central control block 62 controls the information reproduction operation section to take a pause state.

Furthermore, when the barcode represented by the control data Bb is a T, L, mode barcode, the central control block 62 sends T, L to the information reproduction operation unit.

Controls the mode state. In this case as well, the central control block 62 puts the miniting unit 50 in the muting operation state and sets T at that time.

L, the content includes the TNO specified by the mode barcode, T, A, (start T, A,) indicating the playback start point, and T, A, (end T, A,) indicating the playback end point. The specified address data Dx is supplied to the second register 66. Then, the specified address data Dx is supplied from the second register 66 to the comparison operation circuit 64.

At this time, the first register 63 receives TNO and T from the decoding circuit 61 based on the control signal Cd.

Selected playback address data D representing A8 is supplied;
This is sent out in response to the control signal Cn from the central control block 62 and supplied to the comparison calculation circuit 64. The central control block 62 then uses the operation data Do obtained from the comparison operation circuit 64 based on the comparison between the selected playback address data D and the portion of the designated address data Dx containing TNO and start T, A. Based on this, the optical head 43 is brought into a state in which a search operation is performed, as in the case where the above-mentioned TR, L, mode state is taken, and as a result,
Selected playback address data D is specified address data D
TNO and start T at x.

When the search result matches the part containing A and A, the optical disc 43 is caused to complete the search operation and perform an operation for normal playback. At the same time, the transmission of the muting control signal Cm is stopped, and the muting section 50 is made to stop the muting operation.

As a result, the part to which T, L, start T, A specified by the mode barcode is attached in the classified program information recorded with the TNO specified by the mode barcode, That is, playback is started from the characteristic part of the program information corresponding to all the sentences in a specific item in the text 16, and the D/A converter 49 starts playing the first and second channels related to the playback. Program information AL and AR are obtained, which are supplied to the switch group 53 after passing through the muting section 50. Also at this time, the switches 54 to 59 constituting the switch group 53 are controlled according to the channel information included in the final character of the T, L, and mode barcodes, as described above. The playback program information AL and AR of the first and second channels that have passed through 50 are outputted to playback output terminals 51 and 52 through switches 54 and 55, respectively, according to the channel information included in the final character of the T:L mode barcode. the reproduction program information AL of the first channel is output to both reproduction output terminals 51 and 52 through the switches 56 and 57, or the reproduction program information AR of the second channel is output from the switch. Playback output terminals 51 and 5 through 58 and 59
2.

In this way, the information reproducing operation section assumes the T, L, mode state, and the T, L, mode in the classified program information recorded with the TNO designated by the T, L, mode bar code. Playback is performed from the portion marked with start T or A specified by the barcode, and both or one of the playback program information AL and AR of the first and second channels related to the playback is sent to the playback output terminal 51.
and 52, the central control block 62, based on the comparison of the selected playback address data D from the comparator circuit 64 and the portion of the specified address data Dx containing TNO and termination T, A, The calculated data Do obtained by
When indicating that it matches the part whose content is TNO and ending T, A, that is, T, L,
T in the classification program information recorded with the TNO specified by the mode barcode.

L, start T specified by mode barcode.

When the reproduction from the portion specified by A. and end T, A is completed, the central control block 62 controls the information reproduction operation section to take a pause state.

As described above, the information reproducing operation section is operated by the TR.

L, mode state, 1. L, mode state, and T.

■, mode state, but in any of them, the playback program information A of the first channel
When L is led out to both the playback output terminals 51 and 52 through the switches 56 and 57, based on the playback program information AL of the first channel, for example, an English text as shown in FIG. In addition, the reproduction program information AR of the second channel is transmitted to the reproduction output terminal 5 through the switches 58 and 59.
1 and 52, based on the reproduction program information AR of the second channel, for example, the English/Japanese language whose audio is obtained based on the reproduction program information AL of the first channel. This makes it possible to obtain playback audio that corresponds to the translated text.

Note that even when the data input key 26 is operated and the key manual data K is supplied to the first input terminal 1 of the central control block 62, the TN specified by the key manual data K is
O, combination of TNO and INDEX, or TN
Specified address data Dx whose content is a combination of O, T, and A is formed, and the information reproducing operation section described above reads TR,
L, mode state, 1. L, mode state or T, L,
A state in which a comparison similar to the comparison between the selected reproduction address data D and the specified address data Dx is performed in the comparison calculation circuit 64 when the mode is set, and the optical head 43 performs a search operation based on the comparison. After that, the operation for normal playback is performed. The central control block 62 then controls the information reproducing operation unit to reproduce the segmented program information recorded with the TNO designated by the key manual data K from the beginning; the TNO and INDEX designated by the key manual data K are Playback from the beginning of a subdivision of classified program information recorded with TNO specified by key manual data K, or T, A specified by key manual data K in classified program information recorded with TNO specified by key manual data K When the information reproducing operation unit performs the reproducing operation based on the key manual data K, which performs control to perform reproduction from the portion specified by , the information obtained from the D/A converter 49 The playback program information AL and AR of the first and second channels that have passed through the switching section 50 are always transmitted through the switches 54 and 55.
The output terminals 51 and 52 are outputted to reproduction output terminals 51 and 52, respectively.

G-6 Specific example of central control block (FIG. 6) The central control block 62 that performs the above-mentioned control is configured using, for example, a microcomputer, and an example of such a microcomputer is shown in text 16. The barcode 14 is read by the barcode reading section 30,
A program to be executed for control when the control data Bb is supplied from the control data generating section 65 to the central control block 62 follows, for example, the flowchart shown in FIG. 6.

In the program according to the flowchart shown in FIG. 6, after starting, it is determined in decision 70 whether or not control data Bb has been input from the control data generation section 65, and if control data Bb has not been input, Decision 7 until control data Bb is input
Repeat the judgment at 0. If the control data Bb is input, the control data Bb is stored in a process 71, and in a decision 72 it is determined whether the barcode represented by the control data Bb is formed in a standard version.

If the barcode represented by the control data Bb is formed in the standard version, the control data Bb corresponds to the T, L, and mode barcodes, so in process 73, the T.

L, set the mode flag Ft to 1, followed by Digisilon 74, and T with the standard version.

L. Determine whether the TNO specified by the shortened version forming the mode barcode has already been captured. As a result, if the TNO has not been captured, the process returns to digitilon 70, and if the TNO has already been captured, the process proceeds to decision 80.

On the other hand, if it is determined in decision 72 that the barcode represented by the control data Bb is not the standard version but the shortened version, in decision 75 the barcode represented by the control data Bb is the T, L, or mode barcode. Determine whether it is a code or not. If the barcode represented by the control data Bb is a T, L, mode barcode, in process 76, the TN specified by it is
0 and returns to decision 70 to wait for the standard version of the barcode that should follow.

As a result of the determination in decision 75, if the barcode represented by the control data Bb is not a T, L, or mode barcode, then in decision 77, the barcode represented by the control data Bb is TR, L.

Determine whether it is a mode barcode. As a result, if it is a TR, L, mode barcode, process 7
At 8, TR, L, and mode flag Fa are set to 1.
Then, proceed to decision 80, and if it is not a TR, L, mode barcode, then the barcode represented by the control data Bb is! .

Since it is a bar code for L and mode, 1. L, set the mode related flag Fa to 1,
Proceed to decision 80.

In decision 80, it is determined whether the final character X of the barcode represented by the control data Bb is 0 or not. If the final character XL is 0, this means that the 2-channel state is specified, so a switch control signal WS is sent in process 81 so that only switches 54 and 55 in the switch group 53 are turned on. Eggplant. On the other hand, if it is determined in decision 80 that the final character xL is not 0, then in decision 82 it is determined whether the final character XL of the barcode represented by the control data Bb is 1 or not. the result,
If the final character XL is 1, it means that the first channel state is specified, so in process 83 the switch control signal WL is sent out so that only switches 56 and 57 in the switch group 53 are turned on. Eggplant.

On the other hand, if it is determined in decision 82 that the final character Signal W
R is sent out so that only switches 58 and 59 in switch group 53 are turned on.

Next, in decision 85, it is determined whether the flag Fa is set to 1 or not. If the flag Fa is 1, the control data Bb is TR,L.

Since the bar code represents the mode bar code, in process 86, the control data B is sent to the information reproducing operation unit.
b represents TR, L, and T specified by the mode barcode.
TR, L, and mode states are set according to NO. Then, in decision 87, it is determined whether or not the reproduction TNO has changed based on the selected reproduction address data D obtained from the decoding circuit 61. If the reproduction TNO has not changed, the determination in decision 87 is continued until the reproduction TNO has changed. repeat. As a result of decision 87, the playback TNO
When TR, L represented by control data Bb changes,
Since the reproduction of the segmented program information to which the TNO designated by the mode barcode has been completed, the information reproduction operation section is caused to take a pause state in process 88. Then, in process 89, flag Fa is set to 0, and the process returns to decision 70.

Furthermore, if the flag Fa is not 1 as a result of the judgment in decision 85, then in decision 90,
It is determined whether the flag Ft is set to 1 or not. If flag Fi is 1, control data Bb is 1. Since L represents the bar code for mode, in process 91, the information reproducing operation unit receives 1 represented by the control data Bb, L, 1 corresponding to TNO and INDEX specified by the bar code for mode. L, cause mode state to be taken. Then, in decision 92, it is determined whether or not the reproduction INDEX has changed based on the selected reproduction address data D obtained from the decoding circuit 61, and the reproduction INDEX is changed.
If has not changed, continue with decision 92 until it changes.
Repeat the judgment in . As a result of the judgment in decision 92, when the playback INDEX changes, T, L indicated by the control data Bb, T specified by the mode barcode
Since the reproduction of the subdivision of the divided program information to which NO and INDEX are attached has been completed, in process 93 the information reproduction operation section of the disc player is made to take a pause state. Then, in process 94, flag F
Set i to O and return to decision 70.

Furthermore, as a result of the determination in decision 90, if flag Fi is not 1, flag Ft is 1, and control data Bb represents T, L, and mode barcodes, so process 95 In,
The information reproduction operation section receives T and L indicated by the control data Bb, TNO specified by the mode barcode, and T corresponding to the start T and A.

L, cause mode state to be taken. And decision 96
, the calculation data D obtained from the comparison calculation circuit 64
Based on O, the reproduction T, A, becomes T, L.

End T, A specified by mode barcode.

If the playback T,A, has not reached the specified end,T,A,, the specified end,T,A,is determined.
The judgment in decision 96 is repeated until . As a result of the determination in decision 96, playback T,A is designated as termination T,A.

When T is reached, control data Bb represents T.

L, T in the segmented program information to which the TNO specified by the mode barcode is attached, L, start T, A, and end T specified by the mode barcode.

Since the reproduction of the portion specified by A has been completed, in process 97, the information reproduction operation section is made to take a pause state. Then, in process 98, flag Ft is set to O, and the process returns to decision 70.

Effects of the Invention As is clear from the above description, the information selection and reproducing apparatus according to the present invention can reproduce contents corresponding to at least two channels of program information recorded on a disk such as a DAD with address data. The disc player is capable of selectively reproducing text with a predetermined bar code and program information recorded on the disc with specific address data. According to such an information selection and reproducing device, when using the device, the operator can, for example, scan a selected one of the barcodes arranged on the text with a barcode reading unit. By extremely simple operations that can be performed without taking your eyes off the screen, you can use a disc player to play back a desired part of the program information recorded on the disc, and the playback output will be 2-channel playback program information or 2-channel playback program information. This means that it can be done in accordance with the content of the text under the condition that only one of these is possible.

For this reason, the information selection and playback device according to the present invention, for example,
The text is a foreign language teaching text, and the program information corresponding to the foreign language sentence forming the content of the text is the program information of the first channel, and the program information corresponding to the translated sentence for the foreign language sentence is the program information of the first channel. Assuming that the program information was recorded as channel 2, the program information corresponding to the foreign language sentence and the translated sentence for the foreign language sentence are extracted from the disk by a disk player, by checking the correspondence with the text contents. It is suitable for use as an educational device because it can be used in an effective way to improve the learning results in foreign language lessons, such as individually selecting and reproducing corresponding program information.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of an information selection and reproducing apparatus according to the present invention, FIG. 2 is a plan view showing an example of text used in the example shown in FIG. 1, and FIGS. 3 and 4. is the second
5 is a block connection diagram showing essential parts of an example of a disc player used in the example shown in FIG. 1; FIG. FIG. 5 is a flowchart showing a program executed by an example configured using a microcomputer in a central control block used as a main part of the example disc player shown in FIG. In the figure, 12 is a disc player, 14 is a barcode, 1
6 is a text, 30 is a barcode reading section, 41 is a disk, 43 is an optical head, 44 is a reading/signal processing section, 46
47 is a decoder, 48 is a program information processing unit, 50 is a muting unit, 51 and 52 are playback output terminals, 53 is a switch group, 60 is a system control unit, 62 is a central control block, 65 is a This is a control data generation section.

Claims (1)

[Scope of Claims] Characters or pictures corresponding to at least two channels of program information recorded with address data on a disk are written, and an address representing the address data is written adjacent to the characters or pictures. text and a barcode containing channel information specifying both or one of program information of the two channels, a barcode reader that reads the barcode from the text, and a barcode reader that reads the barcode from the text; an information reproducing operation unit that operates to reproduce program information recorded on the disc with specific address data according to address information included in the issued barcode; and a bar code read by the barcode reading unit. A disc comprising a playback channel control section that controls the playback output obtained from the information playback operation section to be either two channels of playback program information or only one of the two channels of playback program information, according to channel information included in the code. An information selection and playback device consisting of a player and.