JPS6199983A - Disk player - Google Patents

Abstract

PURPOSE:To obtain the operability which is excellent in reproducing plural section program information recorded in a disk, by providing a programming mode, a continuous reproducing mode, and an individual reproducing mode. CONSTITUTION:A system control part is provided with three kinds of mode selecting keys consisting of a continuous reproducing mode key 21, an individual reproducing mode key 22 and a programming mode key 23, and can execute a continuous reproducing mode for starting a reproduction from that which has been selected, and executing the reproduction successively in accordance with a recording arrangement order, an individual reproducing mode for executing a reproduction only with regard to that which has been selected, and a program mode for selecting a desired one and executing a reproduction in accordance with the stored reproducing order.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for arbitrarily extracting a desired portion of recorded program information from a disc serving as an information recording medium on which program information is recorded, such as a digital audio disc. The present invention relates to a disc player capable of selective reproduction.

2. Description of the Related Art 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 track is formed. A DAD system in which such a DAD is applied to a disk player to obtain playback program information, that is, a playback audio signal, is an audio signal playback system capable of obtaining a high-quality output audio signal. It is becoming more and more popular.

In such an AD, the recorded program information is, for example, in the form of a collection of a plurality of segmented program information, each of which corresponds to a famous piece of music, and is usually accompanied by address data. It is being said. This address data may be, for example, data representing the recording arrangement order from the playback start end of each segmented program information book, data representing the order of subdivisions within one segmented program information, or data on a spiral recording trunk. It includes various data such as data representing the position in terms of playback time from the start of playback. Since such address data is recorded along with each section program information, the DA
When reproducing program information from D, reproduction address data can be used to reproduce from a desired location in the program information, for example, selectively reproducing specific section program information.

For this reason, the disk player used to obtain playback program information from CAD has only an operation mode that plays back a plurality of segmented program information recorded in D A D b'L sequentially from the playback start end according to the recording arrangement order. For example, there is an operation mode in which playback is started from the beginning of a selected one of a plurality of segmented program information, and each subsequent segmented program information is sequentially reproduced in the recording order. Select the desired one from among the multiple classification program information, and
The reproduction order may be stored in the memory means in advance, and the operation mode may be such that the selected segmented program information can be reproduced in accordance with the reproduction order stored in the memory means. has been done. The operations required by the operator of the disc player to perform playback in each operating mode, or the operations of storing the playback order of the selected plurality of segmented program information in the memory means, etc. This is done via various operation keys arranged on the operation panel section of the disc player.

Problems to be Solved by the Invention In the conventional disk player that is capable of taking various operation modes as described above, the DAD
a plurality of program information selection keys for selecting a desired one of the segmented program information recorded in the DAD; a memory key for storing the playback order of the selected segmented program information in the memory means; A play key + for starting the playback operation of each section program information stored in the DAD, a stop key for ending the playback operation of each section program information recorded on the DAD, etc. are provided. When playing back selected pieces of information from the beginning, or when storing in advance the playback order of selected segmented program information in the memory means, a procedure involving multiple key operations is required. Ru.

For example, when reproducing selected segmented program information from the beginning, first operate any one of a plurality of program information selection keys to select the desired program information.

It is necessary to select the section program information of , and then operate the play key to start the playback operation from the beginning of the selected section program information. In addition, before starting the playback operation from the beginning of the selected segmented program information, the information reading means for reading program information and address data from the DAD sets the reading position on the DAD to the selected segmented program information. A so-called search operation is performed to reach the beginning of the recorded portion.

Furthermore, when storing the playback order of the selected segmented program information in advance in the memory means, first select the desired segmented program information by operating one of the plurality of program information selection keys, and then select the desired segmented program information. A procedure is required in which the playback order is stored in the memory means by operating a key, and the two key operations are repeated for each piece of classified program information whose playback order is to be stored in advance in the memory means. Become.

In this way, operations such as reproducing a selected one of the plurality of segmented program information recorded in the DAD or storing the reproduction order in advance in the memory means involve multiple key operations. Requiring such a procedure results in poor operability as a player, and is accompanied by the problem of making the operator feel troublesome.

In view of these points, the present invention is capable of selecting a desired piece of program information from among a plurality of pieces of segmented program information recorded on a disk such as a DAD, and storing the playback order in advance in a memory means, and A programming mode in which selected segmented program information can be reproduced according to the reproduction order stored in the memory means, and a plurality of segmented program information recorded on a disk can be sequentially reproduced from the playback start end according to the recording arrangement order. Continuous playback that can start playback from the beginning of a selected section of multiple program information sections recorded on a disc, and sequentially play back each section of program information that follows in the order of recording arrangement, even when In addition to the playback mode, if necessary, an individual playback mode can be set in which only selected pieces of program information recorded on the disc can be played.
It is an object of the present invention to provide a disc player in which the number of times that a plurality of troublesome key operations are required when each of these operation modes is taken is significantly reduced, and as a result, the operability is significantly improved.

Means for Solving the Problems In order to achieve the above-mentioned object, a disc player according to the present invention includes an information reading means for a disc on which address data and a plurality of segmented program information are recorded, and an information reading means using the information reading means. a reading position control means for controlling a reading position on the disc; a signal processing section for obtaining reproduction address data and segmented program information based on a reading signal from the information reading means; and at least one of a continuous reproduction mode and a programming mode. an operation mode selection key for selecting one of the segmented program information recorded on the disc; a program information selection key for specifying one of the segmented program information recorded on the disc; and a program information selection key for starting the playback operation of each segmented program information recorded on the disc. system control for controlling the reading position control means based on key input signals obtained by operating the play key, the operation mode selection key, the program information selection key, and the play key and reproduction address data from the signal processing unit; and when the program information selection key is operated, the system control unit described above controls the reading position control means when the program information selection key is operated. Each section of program information recorded on the disc is selected according to the recording arrangement order specified by the program information selection key. When the control state is set for the i-th re-main playback and the operation mode selection key is set to the operating state for selecting the programming mode, each time the program information name tR key is operated, the specified category is changed. The playback order of the program information is stored, and when the play key is operated, the reading position control means is caused to assume a control state for sequentially playing back the segmented program information in which the playback order is stored in accordance with the stored playback order. It will be done like this.

Function: In the disc player according to the present invention configured as described above, the continuous playback mode or the programming mode is selected by operating the operating mode selection key, and the continuous playback mode is selected by operating the operating mode selection key. When the program information selection key is operated, in other words, by one-touch operation of the program information selection key, each category of program information recorded on the disc can be directly changed to the information specified by the operated program information selection key. When the operation mode selection key is operated to enter the programming mode, each time the program information selection key is operated,
That is, each time a one-touch operation of the program information selection key is performed, the playback order of the program information of each category recorded on the disk specified by the operated program information selection key is stored. By operating the play key, a state is established in which the segmented program information in which the playback order has been stored is sequentially played back in accordance with the stored playback order.

As a result, by one-touch operation of the program information selection key, for example, a plurality of segmented program information recorded on a disc can be sequentially played back from the beginning of a desired one of them. It is possible to store in advance the playback order of desired pieces of segmented program information in the memory means, and excellent operability can be obtained.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the main parts of an example of a disc player according to the present invention, and this example is an optical player that reproduces information from a DAD. Here, the disk 1 loaded in the player DP according to this example is a DAD in which a plurality of segmented program information and address data as described above are recorded with a spiral recording trunk, and the disk rotation motor 2 gives a predetermined rotation. On this disk 1, program information and address
The data is recorded in the form of, for example, an array of a large number of bits so that it can be read out optically, and is read by an optical head 3 serving as information reading means. The optical head 3 irradiates the disk 1 with a light beam such as a laser beam, and generates a read signal S by receiving the reflected light beam modulated according to the recording track of the disk 1 with a photodetector.

Therefore, the point at which the light beam from the optical head 3 reaches on the disk 1 becomes the reading position on the disk 1 by the optical head 3. Furthermore, the optical head 3 has a built-in focus control means for keeping the light beam incident on the disk 1 in an appropriate focused state, and a tracking control means for making the light beam incident on the disk l properly follow the recording track. Moreover, the entire disk 1 can be moved in the radial direction of the disk 1, that is, in the direction across the recording tracks.

The read signal S obtained from the optical head 3 is supplied to the read signal processing section 4, and from the read signal processing section 4, a reproduction output signal Sp of program information and address data, a focus error signal Sf, and a tracking error signal St are output. can get. The focus error signal Sf is supplied to the focus control drive unit 5, and based on this, the drive signal CI is supplied from the focus control drive unit 5 to the focus control means of the optical head 3 to perform focus servo control. Further, the tracking error signal St is supplied to the reading position control unit 6, and based on this, the drive signal C2 is supplied from the reading position control unit 6 to the tracking control means of the optical head 3 to perform tracking servo control.

Furthermore, the reproduced output signal Sp of program information and address data obtained from the read signal processing section 4 is sent to a decoder 7.
from the decoder 7, the reproduction program information P
is obtained, and reproduction address data Q is detected. The reproduction program information P is then supplied to the program information processing section 8 and subjected to various processing, and the audio signal A, which is a reproduction program information signal, is obtained from the program information processing section 8 and is led out to the output terminal 9. Note that the program information processing section 8 has a muting control function that controls the output of the audio signal A to the output terminal 9. Furthermore, the reproduction address data Q is supplied to the system control section 10.

Continuous playback mode key 2 in connection with system control unit 10
Three types of operation mode selection keys are provided, consisting of an individual reproduction mode key 22 and a programming mode key 23. The continuous playback mode key 21 starts playback from a selected one of the plurality of segmented program information recorded on the disc 1, and then continues (plays back each segmented program information sequentially in the order of recording arrangement). The individual playback mode-!--22 is an individual playback mode in which only a selected one of the plurality of segmented program information recorded on the disc 1 is played back. The programming mode key 23 is for selecting the mode.
It is possible to select a desired piece of program information from among a plurality of pieces of segmented program information recorded on the disc 1 and store the playback order of the pieces of program information in advance, and to reproduce each segmented program information that is selected according to the stored playback order. This is to take a program mode that allows you to do the following.

In addition, a play key 24 for starting the reproduction operation of each section program information recorded on the disk 1 and a stop key 25 for stopping the reproduction operation, and a plurality of section program information recorded on the disk 1. Program information selection key 26 for specifying one of the
are arranged. The program information selection keys 26 are used to specify trunk numbers 1 to 2 corresponding to the recording arrangement order of the plurality of segmented program information recorded on the disc 1.
A direct key 26a numbered up to 0, a carry key 26b for incrementing the track number of designated segmented program information by 10, and its cancellation key 26c.
By operating the carry key 26b and then pressing the direct key 26a, even if 21 or more pieces of segmented program information are recorded on the disk 1, the multiple program information recorded on the disk 1 can be It is possible to specify any of the classified program information.

These continuous playback mode keys 21. Individual playback mode key 22. Programming mode key 23゜Play key 2
4. A direct key 263 that constitutes the stop key 25 and the program information selection key 26. Carry key 26
b and the cancel key 26C, for example, are in the form of push buttons, and as shown in FIG. 2, which shows the front appearance of the player DP according to this example, the
It is located along with other operation buttons. When each of these keys 21 to 26 is operated, a human input signal for each key is supplied to the system control unit 10.

Furthermore, when the power of the player DP is turned on, the continuous playback mode key 211, the individual playback mode key 22, and the programming mode key 2, which constitute the above-mentioned operation mode selection keys.
3 is provided with a priority operation mode switching means 31 that performs a selection setting operation to preferentially select the continuous reproduction mode, individual reproduction mode, or programming mode selected therefrom. This priority operation mode switching means 31 includes a continuous playback mode priority switch 32 and an individual playback mode priority switch 33 connected to the system control unit 10, and the continuous playback mode priority switch 32 is turned on. When the power is turned on, the continuous playback mode key 21 is set to the continuous playback mode, and when the individual playback mode priority switch 33 is turned on, the individual playback mode key 22 is set to the individual playback mode when the power is turned on. When both the continuous playback mode priority switch 32 and the individual playback mode priority switch 33 are turned off, the programming mode key 23 is in the programming mode when the power is turned on. The continuous playback mode priority switch 32 and the individual playback mode priority switch 33 are located at the continuous playback mode position ( C) 9 individual playback mode positions (S
) and programming mode position (P), and when continuous playback mode position (C) is selected, continuous playback mode priority switch 32 is arranged. When the individual playback mode position (S) is selected, the individual playback mode priority switch 33 is turned on, and when the programming mode position (P) is selected, the continuous playback mode priority switch 32 is turned on. and the individual playback mode priority switch 33 are both turned off.

In this example, in addition to the above configuration, continuous playback mode key 211 individual playback mode key 22 . In order to visually display the operation status of the programming mode key 23, play key 24, and priority operation mode switching means 31, each light is lit when the continuous playback mode, individual playback mode, and programming mode are selectively selected. Continuous playback mode indicator CL.

An individual playback mode indicator light SL, a programming mode indicator light PL, and a play operation indicator light RL that is lit in the playback operation state of the classified program information are arranged. Structurally, each of these indicator lights is attached to the push button of each corresponding key.

In addition, a display section 36 showing the track number corresponding to each section program information recorded on the disc 1 is displayed in the tens place.
The track number display section 36a has a display section 36a'' that indicates "a" and the 1's digit, and further displays the number of the subdivision within each section program information and the remaining playback time of the section program information currently being played. The address that has been
The track number corresponding to the section program information specified by the operation of the data display section 36 and the program information selection key 26 is displayed, and the track number corresponding to the information of each operation mode is sequentially erased. A display surface section 35 is provided having a program display section 37 adapted to display track numbers corresponding to segmented program information. This display surface section 35 is also installed on the front operation panel section 20 of the player DP together with various operation buttons, as shown in FIG.

As described above, the system control unit 1O, which is supplied with the reproduction address data Q detected by the decoder 7, selects, for example, each section program information recorded on the disk 1 from among the data included in the reproduction address data Q. The playback address, such as a track number that indicates the recording arrangement order of
Data D is obtained. Then, the system control unit 10
Each indicator light CL is set based on the operation state of the above-mentioned priority operation mode switching means 31, each key input signal from each of the keys 21 to 26, reproduction address data D, etc.

In addition to controlling the lighting operations of SL, PL, and RL and the display operation of the display surface section 35, a control signal Cc for controlling the reading position by the optical radar 3 is sent to the reading position control section 6, and the disc rotation motor A motor control signal Cs for controlling the rotational speed of the audio signal A is supplied to the motor control section 11, and a muting control signal Cm for controlling the transmission of the audio signal A is supplied to the proguerra I and the information processing section 8, respectively.

A control signal C is sent from the system control unit 10 to the reading position control unit 6.
When c is supplied, the reading position control section 6 is driven in accordance with the control signal Cc in order to move the arrival position on the disk 1 of the light beam from the optical head 3, that is, the reading position by the optical head 3. A signal C1 is sent out to cause the optical head 3 to rapidly move forward or backward in the radial direction of the disk 1, and a drive signal C2 is sent out to cause the optical head 3 to move rapidly in the radial direction of the disk 1. The optical head 3 is assumed to operate in a search operation state, with the control means performing a forward or reverse track jump operation. In addition, the system control unit 10 outputs a motor;
In response to the motor control signal Cs supplied to the motor control section 1, the motor control section 11 supplies a drive signal C4 for rotating the disk rotation motor 2L at a constant linear velocity, for example.

In the player DP according to this example having the above-described configuration, the priority operation mode switching means 31 selects and sets one of the continuous playback mode, individual playback mode, and programming mode when the power is turned on. Or, in addition, press continuous playback mode key 2
11 Individual playback mode key 22 or programming
When any one of the mode keys 23 is operated, one of the continuous playback mode, individual playback mode, and programming mode is selected. Then, when the continuous playback mode is set by the operation of the system control unit 10, simply by operating the program information selection key 26 and specifying the track number corresponding to one segmented program information, the program information is directly transferred to the disc 1. The operating state is such that a plurality of pieces of recorded program information are sequentially reproduced according to the recording arrangement order starting from the information specified by the program information selection key 26, and when the individual reproduction mode is selected, the program information selection key 26 was manipulated and 1
By specifying a track number corresponding to one piece of segmented program information, an operating state is established in which only that one of the plurality of segmented program information recorded on the disc 1, which is represented by the designated track number, is directly reproduced. Further, when the programming mode is set, each time the program information selection key 26 is operated, the program information selected by the operated program information selection key 26 from among the plurality of segmented program information directly recorded on the disk 1 is selected. The playback order of the items is stored in the memory built into the system control unit 10, and when the play key 24 is operated, the stored playback of the segmented program information in which the playback order has been recorded ↑α is performed. An operating state is taken in which the data is sequentially reproduced in accordance with the order.

This system controls the reproduction of a plurality of segmented program information recorded on the disc 1.

The stem control unit 10 is configured using, for example, a microcomputer, and an example of a control operation program executed by the microcomputer to control the reproduction of program information from the disc 1 is shown in FIG. 4A.
, B and C will be described.

This program starts when the power is turned on to the player DP, and after starting, it is first determined in decision 101 whether or not the continuous playback mode priority switch 32 is in the ON state, and if the continuous playback mode priority switch 32 is in the ON state. If it is determined that this is the case, the process advances to process 102, where the continuous reproduction mode key 21 is pressed to enter the continuous reproduction mode, the continuous reproduction mode indicator light CL is turned on, and then the process advances to decision 103. On the other hand, decision 10
If it is determined in step 1 that the continuous playback mode priority switch 32 is not in the ON state, the process proceeds to decision 104, where it is determined whether the individual playback mode priority switch 33 is in the ON state, and the individual playback mode priority switch 33 is If it is determined that is in the ON state, proceed to process 105,
After the individual reproduction mode key 22 is pressed to enter the individual reproduction mode and the individual reproduction mode indicator light SL is turned on, the process proceeds to decision 103. Also, decision 1
If it is determined in step 04 that the individual playback mode priority switch 33 is not in the ON state, the process proceeds to step 106, where the programming mode key 23 is pressed to enter the programming mode, and the programming mode is set.
After the mode indicator light PL is turned on, the process proceeds to decision 103.

In decision 103, it is determined whether or not the direct key 26a has been pressed. If it is determined that the direct key 26a has been pressed, the process proceeds to process 107 (FIG. 4B), and it is determined that the direct key 26a has not been pressed. If so, proceed to decision 108. decision 10
In step 8, it is determined whether or not the continuous playback mode key 21 is pressed, and if it is determined that the continuous playback mode key 21 is pressed, the process proceeds to step 109 and the continuous playback mode indicator light CL is turned on. At the same time, the individual playback mode indicator light SL and the programming mode indicator light PL are set to the clear state, and the process proceeds to decision 110. On the other hand, if it is determined in decision 108 that the continuous playback mode key 21 is not pressed. Decision 111 for
Then, it is determined whether or not the individual playback mode key 22 is pressed. If it is determined in decision 111 that the individual playback mode key 22 has been pressed, the process advances to process 112 to turn on the individual playback mode indicator SL, and set the continuous playback mode indicator CL and program - Set the mode indicator light PL to the smokeless state and proceed to decision 110.

On the other hand, if it is determined in decision 111 that the individual playback mode key 22 is not pressed, decision 11
3, it is determined whether the programming mode key 23 is pressed, and the programming mode key 23 is pressed.
If it is determined that is pressed, process 114
Proceed to Step 1, turn on the programming mode indicator PL, and turn off the continuous playback mode indicator CL and individual playback mode indicator SL, and then proceed to Decision 1.
Proceed to step 10.

In decision 110, it is determined whether or not the carry key 26b has been pressed, and if it is determined that the carry key 26b has not been pressed, the process directly advances to decision 115.
If it is determined that the carry key 26b has been pressed, the process proceeds to process 116, where 10 is stored in the built-in selection key memory KM, and the process proceeds to process 117. Note that if the total number of segmented program information recorded on the disc 1 used for reproduction exceeds 30, each time the carry key 26b is further pressed, the number stored in the memory KM is changed to IO. Increased by increments. In the process 117, the contents of the tens place stored in the selection key memory KM, for example, 1.2.
3 or 4 etc. is displayed on the 10's display section 36a'' in the track number display section 36a, and a "-" sign is displayed on the ■ digit display section 36a'' using the direct key 26a.
The display will blink until is pressed. When the carry key 26b is pressed in this way, 1 is stored in the selection key memory KM.
By temporarily storing 0 or its multiple, the IO digit is displayed on the display section 36a'' of the track number display section 36a, and a "-" sign is blinking on the display section 36a''. Even if more than 20 pieces of segmented program information are recorded in the track, it is possible to specify the track number corresponding to the segmented program information with simple operation without increasing the number of direct keys 26a. The fact that the tens place of the track number has been memorized is visually indicated and the next operation to be performed is suggested, thereby preventing forgetting to press the direct key 26a.

Then, after going through process 117, decision 115
The process proceeds to decision 118 to determine whether or not the play key 24 has been pressed. If it is determined that the play key 24 has been pressed, the process proceeds to decision 118 and determines whether play (playback status B of program information from disk 1) is in progress. to judge. If it is determined that the game is not being played, the process proceeds to decision 119 (FIG. 4B), and if it is determined that the game is being played, the process proceeds to decision 120 (FIG. 4C). On the other hand, if it is determined in decision 115 that the play key 24 is not pressed, the process advances to decision 121,
Similar to decision 118, it is determined whether or not the play is in progress, and if it is determined that the play is in progress, decision 1
20 (FIG. 4C), and if it is determined that the game is not in play, the process returns to decision 103.

In decision 103 mentioned above, direct key 2
Process 107 to proceed when it is determined that 6a has been pressed
Now, add the number stored in the selection key memory KM in the process 116 described above (O if the carry key 26b is not pressed) and the number of the pressed direct key 26a, and select the sum. It is stored in the key memory KM and proceeds to decision 122, where it is determined whether or not it is in programming mode. This judgment is made using the programming mode indicator light PL.
This is done by detecting whether the programming mode indicator light PL is on or off, and if the programming mode indicator light PL is off, it is not in programming mode but in continuous playback mode or individual playback mode. If so, the process proceeds to process 123, where the target address is set to the beginning of the segmented program information represented by the trunk number stored in the selection key memory KM, and the process proceeds to process 124. In process 124, the track number stored in the selection key memory KM is cleared, and the process proceeds to process 125, where the play operation indicator light RL is turned on.

In the subsequent process 126, the muting control signal Cm is supplied to the program information processing unit 8 to put the program information processing unit 8 into a muting operation state, and in the process 127
Proceed to. In process 127, the reading position by the optical helad 3 is the target address set in process 123.
In order to reach the beginning of the segmented program information represented by the track number stored in the selection key memory KM, the playback address data D included in the playback address data Q obtained from the decoder 7 is compared with the target address. , if the two address data do not match, a control signal Cc is supplied to the reading position control unit 6 to make them match. As a result, the reading position control unit 6 receives the drive signal C.
8 to cause the optical head 3 to perform a forward or reverse continuous feeding operation that rapidly moves in the radial direction of the disk 1, and also sends a drive signal C2 to control the tracking control means built in the optical head 3. The control state is such that the optical head 3 is caused to perform a track jump operation in the forward or reverse direction, and the optical head 3 is caused to operate in a search operation state in which the read position is caused to reach the target address. After taking such a control state, Decision 1
The process proceeds to step 28, where it is determined whether or not the playback address data D matches the target address. If it is determined that the playback address data D does not match the target address, the process returns to step 127 and the above-mentioned process is again performed. The reading position is controlled by the optical head 3, and this is repeated.

If it is determined that the reproduction address data D matches the target address, the process proceeds to process 129, where the transmission of the muting control signal Cm supplied to the program information processing section 8 is stopped and the program information processing is performed. Part 8
The muting state is canceled and the process returns to process 103.

As a result, in the continuous playback mode or the individual playback mode, out of the plurality of segmented program information recorded on disk 1, the specified one can be played back according to the recording sequence order, or only the specified one can be played back. As a result, an audio signal A, which is a reproduction program information signal, is obtained at the output terminal 9.

On the other hand, if it is determined in decision 122 that it is the programming mode, the process advances to decision 130, in which it is determined whether the total number of programming flags Fz representing the total number of segmented program information specified by the operation of the program information selection key 26 is the maximum. That is, it is determined whether the total number of programming flags Fz has reached the total number of segmented program information recorded on the disk 1 or not. Here, if it is determined that the total programming number flag Fz is not the maximum, and therefore, if there is a possibility that more segmented program information to be provided for playback will be specified, the process proceeds to process 131 and the total programming number flag Fz is set to 1.
The process proceeds to process 132, where the play operation indicator light RL is turned on.
flash.

Next, the process proceeds to process 133, in which the content stored in the selection key memory KM in process 107, that is, the track number corresponding to the specified section program information, is stored in the built-in programming memory PM obtained in process 131. It is stored in the location indicated by the programming total number flag Fz.

That is, the programming memory PM stores the playback order of selected pieces of program information from among the plurality of segmented program information recorded on the disc 1. The process then proceeds to process 134, clears the selected key memory KM, and returns to process 108. If it is determined in decision 130 that the total number of programming flags Fz is the maximum, the process proceeds to process 134 without going through processes 131 to 133, executes the above-described process 134, and returns to process 108.

Here, in process 132, the play operation indicator light RL
When the programming mode is selected by flashing the program information selection key 26
It is visually indicated that the trunk number corresponding to the segmented program information specified by the operation is stored in the selection key memory KM, and the next operation to be performed is suggested.

Decision 119 (see Fig. 4B
), similar to decision 122 mentioned above,
Determine whether or not you are in programming mode. As a result,
If it is determined that the program is in the programming mode, the process proceeds to decision 135, where it is determined whether the total number of programming flags Fz is O or not, that is, the trunk number corresponding to the designated segment program information is stored in the programming memory PM. In other words, it is determined whether the playback order of the designated segmented program information is stored in the programming memory PM. here,
If it is determined that the total number of programming flags Fz is O, that is, if it is determined that the specified reproduction order of segmented program information is not stored in the programming memory PM, the program proceeds to process 136 and operates. Switching the mode from the programming mode to the continuous playback mode, extinguishing the programming mode indicator PL and turning on the continuous playback mode indicator CL, continuing process 137
Then, the target address is set to the section program information recorded on the nearest playback start side of the disk L, that is, the track number "l".
” after setting it to the beginning of the segmented program information represented by ``Process 125.Process 126.
Process 127. Decision 12B and Process 12
9 and returns to decision 103.

As a result, the plurality of segmented program information recorded on the disc 1 are reproduced from the first one in the continuous reproduction mode.

Further, if it is determined in decision 135 that the total number of programming flags Fz is not 0, that is, if it is determined that at least one track number corresponding to the designated segmented program information is stored in the programming memory PM. Then, the program proceeds to process 138, in which the program performance flag Fp representing the playback order of the segmented program information is set to '1', and then the process proceeds to process 139. In process 139, the target address is set to the beginning of the segmented program information represented by the track number stored in the position indicated by the program performance flag Fp of the programming memory PM, and the process proceeds to process 125, whereupon the flow as described above is performed. move on.

This allows, under programming mode,
Pre-programming and programming of a designated one of the plurality of segmented program information recorded on disk 1.
Reproduction is performed according to the reproduction order stored in the memory PM.

On the other hand, in the above-mentioned decision 119, programming
If it is determined that it is not the mode, that is, if it is determined that it is the continuous replay mode or the individual playback mode,
Proceed to decision 140 and track number display section 36a
It is determined whether the track number displayed is O, that is, whether the segmented program information has been specified, and if it is determined that the track number is 0, it means that the segmented program information has not yet been specified. If not, the process proceeds to process 137, and the flow proceeds in the same manner as described above.

Further, if it is determined in decision 140 that the track number is not 0, that is, if classification program information is specified, the process proceeds to process 141 and the target address is set to the trunk number displayed in the track number display section 36a. After setting the segmented program information to be displayed at the beginning, the process proceeds to process 125, and the process proceeds in the same flow as in the case described above.

As a result, in the continuous playback mode or the individual playback mode, the first one or the specified one of the plurality of segmented program information recorded on the disc 1.
Alternatively, only the first one or the specified one is played.

In addition, Decision 1, which is proceeded when it is determined that the play is in progress in the above-mentioned Decisions 118 and 121,
In step 20, it is determined whether the reproduction address data D included in the reproduction address data Q has changed to a new one, and if it is determined that the reproduction address data D has not changed, decision 103 is performed. Return to On the other hand, if it is determined that the playback address/data D has changed to a new one, the process proceeds to process 142 and stores the new playback address/data D in the built-in memory.
Proceed to step 43. In process 143, the trunk number is displayed on the track number display section 36a based on the new playback address data D.

Next, the process proceeds to decision 144, in which it is determined whether the track number displayed on the track number display section 36a has changed. If it is determined that the track number has not changed, the process proceeds to decision 145, where it is determined whether the reading position by the optical head 3 is located in the outermost recording area of the disc 1, that is, in the lead-out area. However, if it is determined that the disc is not located in the lead-out area, the process returns to decision 103 and continues playing the program information from disc 1, and if it is determined that the disc is located in the outermost recording area. Then, the process advances to decision 146 to determine whether or not the continuous playback mode is set.

Here, if it is determined that the continuous playback mode is selected, the process proceeds to process 147, in which a muting control signal Cm is supplied to the program information processing section 8 in order to put the program information processing section 8 into a muting state. Further, the process proceeds to process 148, where the control signal Cc is supplied to the reading position control section 6 and the motor control signal C is supplied to the motor control section 11.
s is stopped, the control over the optical head 3 is ended, and the operation of reproducing the program information from the disk 1 is ended, and the process returns to decision 103.

On the other hand, if it is determined in decision 144 that the trunk number has changed, or if it is determined in decision 146 that the continuous playback mode is not set, the process proceeds to decision 149, where it is determined whether or not the individual playback mode is set, and the individual playback mode is If it is determined that this is the case, the above-mentioned processes 147 and 14B are executed in sequence to complete the program information reproduction operation from disk 1, and the process returns to decision 103, where it is determined that the individual reproduction mode is not present. If so, the process advances to decision 150 to determine if it is in programming mode. here,
If it is determined that the program is not in the programming mode, the process returns to decision 103 to continue playing the program information from disk l, and if it is determined that the program is in the programming mode, the process proceeds to process 151 to set the program play flag Fp. Increase by 1 to make decision 152
Proceed to. In decision 152, it is determined whether the total programming number flag Fz is smaller than the program performance flag Fp, and if it is determined that the total programming number flag F2 is smaller than the program performance flag Fp, the process advances to process 147 and the following steps are performed. Proceeding with the same flow as in the case described above, the program information playback operation from disk 1 is completed and the process returns to decision 103, where the total programming number flag Fz becomes the program performance flag F.
If it is determined that p is not less than p, process 139
Then, the flow proceeds in the same manner as in the case described above, and reproduction of the specified piece of program information among the plurality of segmented program information recorded on the disc 1 is continued in accordance with the reproduction order stored in advance in the programming memory PM.

Effects of the Invention As is clear from the above explanation, the disk according to the present invention
According to the player, it is possible to select a desired piece of program information from among a plurality of segmented program information recorded on a disc such as a DAD using a program information selection key, and to store the playback order in advance in a memory means, and , a programming device capable of reproducing selected segmented program information according to a reproducing order stored in the memory means;
Mode and program information selection from among the number of segmented program information recorded on the disc, including the case where multiple segmented program information recorded on the disc are sequentially reproduced from the playback start end according to the recording arrangement order. Starts playback from the beginning of the item selected by the key,
There is also a continuous playback mode in which each of the following segmented program information can be played back in sequence according to the recording order.Furthermore, if necessary, a program information selection key can be used to select one of the multiple segmented program information recorded on the disc. It is possible to take an individual playback mode that allows you to playback only the content that has been recorded.Moreover, in each operation mode, simply by operating the program information selection key,
That is, by a one-shot operation of the program information selection key, the playback order of desired pieces of program information of a plurality of sections recorded on the disc can be stored in advance in the memory means, or The program information can be played back sequentially from the beginning of the desired information, or only the desired information can be reproduced, resulting in excellent operability.

[Brief explanation of the drawing]

FIG. 1 is a block connection diagram showing essential parts of an example of a disc player according to the present invention, FIGS. 2 and 3 are front and rear views, respectively, of the disc player according to the example shown in FIG. FIG. 4 is a flowchart showing an example of a control operation program executed by a microcomputer in an example of the system control unit used in the example shown in FIG. In the figure, 1 is a disk, 3 is an optical head, 4 is a reading signal processing section, 6 is a reading position control section, 7 is a decoder, 8 is a program information processing section, 9 is an output terminal, 10 is a system control section, and 20 is a Front operation panel section, 21 is a continuous playback mode key, 22 is an individual playback mode key, 23 is a programming mode key, 24 is a play key, 26 is a program information selection key, 3] is a priority operation mode switching means, 35 is the display surface, CL is the continuous playback mode indicator, SL is the individual playback mode indicator, PL is the programming mode indicator,
RL is a play operation indicator light.

Claims (1)

[Claims] an information reading means for a disk on which address data and a plurality of segmented program information are recorded; a reading position control means for controlling a reading position on the disk by the information reading means; and a reading signal from the information reading means. a signal processing unit for reproducing the address data and the segmented program information; an operation mode selection key for selecting at least one of the first operation mode and the second operation mode; A program information selection key for specifying one of each category of program information, a play key for starting the playback operation of each category of program information recorded on the disk, the operation mode selection key, and a program information selection key. and a system control unit that controls the reading position control means based on a key input signal obtained by operating a play key and reproduction address data from the signal processing unit, and the system control unit controls the operation. When the mode selection key is in an operating state for selecting the first operation mode, when the program information selection key is operated, each segment program information recorded on the disk is sent to the reading position control means to program the program. When the control state is set to sequentially reproduce the information specified by the information selection key according to the recording arrangement order, and the operation mode selection key is set to the operation state to select the second operation mode, Each time the program information selection key is operated, the playback order of the segmented program information specified by the program information selection key is stored, and when the play key is operated, the playback order is stored in the reading position control means. A disc player configured to assume a control state for sequentially playing back segmented program information according to its stored playback order.