JPS6199985A - Disk player - Google Patents

Abstract

PURPOSE:To obtain an excellent operability by constituting a titled disk player so that a desired operation can be executed directly by a one-touch operation of a program information selecting key, and a reproducing output of section program information recorded in a disk is always obtained, when operating a play key. CONSTITUTION:On one of a continuous reproducing mode key 21, an individual reproducing mode key 22, and a programming mode key 23 for constituting an operation mode selecting key, when a power source of a player D has been turned on, a priority operation mode witching means 31 for executing a selecting and setting operation for taking preferentially a continuous reproducing mode, an individual reproducing mode or a programming mode selected by those keys is provided. The priority operation mode switching means 31 is constituted by having a continuous reproducing mode priority switch 32 and an individual reproducing mode priority switch 33 which are connected to a system control part 10, and when both the continuous reproducing mode priority switch 32 and the individual reproducing mode priority switch 33 become an off-state, an operating state that the programming mode key 23 takes the programming mode, when the power source has been turned on.

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 to form a spiral recording track. The DAD system, in which such a DAD is applied to a disk player to obtain playback program information, that is, a playback audio signal, has become popular as an audio signal playback system that can obtain high-quality output audio signals. It's coming.

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 corresponding to each aspect of music, and usually the address data is accompanied. This address data may be, for example, data representing the recording arrangement order from the playback start end of each segmented program information, data representing the order of subdivisions within one segmented program information, or a position on a spiral recording track. It includes various data such as data representing the playback time from the start of playback. Since such address data is completely 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, a disk player used to obtain playback program information from a DAD not only operates in an operating mode in which a plurality of segmented program information recorded on a DAD is sequentially played back in accordance with the recording arrangement order from the playback start end side.
For example, there is an operation mode in which playback starts 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 order of recording arrangement. Selecting desired pieces of segmented program information, storing their reproduction order in memory means in advance, and then reproducing the selected segmented program information in accordance with the reproduction order stored in the memory means. It is assumed that it can take an operation mode that allows for 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 from the beginning of the selected section of information, or when storing in advance the playback order of the selected segmented program information in the memory means, a procedure including multiple key operations is required. Ru.

For example, when reproducing selected section program information from the beginning, first select the desired section program information by operating one of the multiple program information selection keys, and then press the This requires a procedure for starting the playback operation from the beginning of the selected segmented program information by operating the . 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, multiple key operations are required to play back a selected one of the plurality of segmented program information recorded in D8, or to store the playback order 4 in advance in the memory means. Requiring a procedure including these steps 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 playback order stored in the memory means, and a plurality of segmented program information recorded on a disk are reproduced from the playback starting end side.

Including the case of sequential playback according to the recording order,
A continuous playback mode in which playback is started from the beginning of a selected one of a plurality of segmented program information recorded on a disc, and each subsequent segmented program information is sequentially reproduced in the recording order; If necessary, an individual playback mode can be used in which only selected pieces of program information are played out of the plurality of segmented program information recorded on the disc. It is an object of the present invention to provide a disc player in which the number of times key operations are required is significantly reduced, and the operability is significantly improved, including the simplification of such key operations. .

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 reproducing reproduction address data and segmented program information based on a read 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, a program information selection key for specifying one of each section of program information recorded on the disc, and a start of playback operation of each section of program information recorded on the disc. A system that controls the reading position control means based on a play key for controlling the play key, an operation mode selection key, a program information selection key, and a key input signal obtained by operating the play key and reproduction address data from a signal processing section. and when the system control unit is operated to select the continuous playback mode,
When the program information selection key is operated, the reading position control means takes a control state for sequentially reproducing each section of program information recorded on the disk according to the recording arrangement order from the one specified by the program information selection key. Also, the operation mode selection key can be programmed.
When a mode is operated, each time the program information selection key is operated, the playback order of the segmented program information specified by it is memorized, and when the play key is operated, the playback order is memorized. If the playback order is stored, the reading position control means is caused to take a control state for sequentially playing back the segmented program information in which the playback order is stored, and if the playback order is not stored, the reading position control means takes a control state for sequentially playing back the segmented program information in which the playback order is stored. By switching to the playback mode, the reading position control means is caused to assume a control state for sequentially playing back each section of program information recorded on the disk in accordance with the recording arrangement order.

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 pressed 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. , if the playback order has been stored in advance by operating the play key, the state 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 is automatically performed. On the other hand, if the playback order has not been memorized, the system automatically switches to continuous playback mode and plays back each section of program information recorded on the disc sequentially from the playback start end according to the recording order. The state in which it is done is taken.

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. This makes it possible to store in advance the playback order of desired pieces of classified program information in the memory means. In addition, by operating the play key in the programming mode state, the playback output according to the playback thickness order of the section program information whose playback order is stored, or the playback start point of each section program information recorded on the disc. It is possible to obtain playback output according to the recording arrangement order from the parts.

Therefore, in addition to being able to perform the desired operation directly by one-touch operation of the program information selection key, whenever the play key is operated, the segmented program information 6 recorded on the disc is always reproduced, resulting in excellent operability. can get.

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 is driven by a disk rotation motor 2. A given rotation is given. On this disk L, program information and address data are recorded in the form of, for example, a large array of pits so that they can be read out optically, and are read by an optical head 3 serving as information reading means. optical head 3
For example, a light beam such as a laser beam is irradiated onto the disc 1, and a photodetector receives the reflected light beam which is modulated according to the recording track of the disc 1 to generate a read signal S.

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 disc 3 has a built-in focus control means for keeping the light beam incident on the disk I in an appropriate focused state, and a tracking control means for making the light beam incident on the disk 1 appropriately 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 section 5, and based on this, the drive signal C3 is supplied from the focus control drive section 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 section 6, and based on this, the driving signal C2 is supplied from the reading position control section 6 to the tracking control means of the optical hood 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.
The playback program information fI is supplied from the decoder 7 to
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. In addition,
The program information processing unit 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 IO
Three types of operation mode selection keys are provided, consisting of 11 individual reproduction mode keys 22 and programming mode keys 23. Continuous playback mode The key 21 is used to start playback from a selected one of the plurality of segmented program information recorded on the disc L, and to play back each subsequent segmented program information in sequence according to the recording order. The individual playback mode key 22 is used to select a continuous replay mode in which a selected one of the plurality of segmented program information recorded on the disc 1 is played back. Programming mode key 23
is capable of selecting a desired piece of segmented program information from among a plurality of segmented program information recorded on the disc 1 and storing the playback order thereof in advance, and each segmented program information selected according to the stored playback order. This is a program mode that allows playback.

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 track 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 operating the direct key 26a, even if 21 or more segment program information are recorded on the disk 1, multiple segment program information recorded on the disk 1 can be edited. Any program information can be specified.

These continuous playback mode keys 211 and individual playback mode keys 22. Programming mode key 23° play key,
24. Stop key 25 and program Jikou I selection 1
length=1'--26 (MJ 戊direct key 26a
, carry key 26b and cancel key 26C are, for example,
This button is in the form of a push button, and is arranged along with other operation buttons on the front operation panel section 20 of the player DP, as shown in FIG. 2, which shows the front view of the player DP according to this example.

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, one of the continuous playback mode key 211, the individual playback mode key 22, and the programming mode key 23, which constitute the above-mentioned operation mode selection keys, is selected. Priority operation mode switching means 31 is provided for performing a selection setting operation to give priority to the reproduction mode or programming mode. 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. In addition, when both the continuous playback mode priority switch 32 and the individual playback mode priority switch 33 are set to the OFF state, the programming mode key 23 is set to the programming mode when the power is turned on.
It is considered to be an operating state that takes a mode. The continuous playback mode priority switch 32 and the individual playback mode priority switch 33 are located on the rear panel of the player DP, as shown in FIG. It is arranged as an integrated switch that can take three selection positions: position (C), individual playback mode position (S), programming mode position (P), and continuous playback mode position (C). When selected, the continuous playback mode priority switch 32 is turned on.
When the individual playback mode position W (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 and Both individual playback mode priority switches 33 are turned off.

In this example, in addition to the above configuration, continuous playback mode key 212 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'' representing a' and the 1's digit, and further displays the number of the subdivision within each section program information, the remaining playback time of the section program information being played, etc. The track number corresponding to the segmented program information specified by the operation of the address/data display section 36 and the program information selection key 26 is displayed, and the segmented program played under each operation mode is displayed. A display surface section 35 is provided, which has a program display section 37 that sequentially erases trunk numbers corresponding to information and displays track numbers corresponding to remaining segmented program information.This display surface section 35 As shown in FIG. 2, these are also installed on the front operation panel section 20 of the player DP along with various operations 10.

As mentioned above, the system control unit 1° to which the reproduction address data Q detected by the decoder 7 is supplied selects, for example, each segment program recorded on the disk l from among the data included in the reproduction address data Q. Reproduction address data D such as a track number representing the number in the information recording array 11 is obtained. Then, the system control unit 1o
is the operation state of the above-mentioned priority operation mode switching means 31,
Each indicator light CL is set based on each key input signal from each of the keys 21 to 26, reproduction address data D, etc.

SL, PL, and RLO lighting operation control and display screen section 3
5, a control signal Cc for controlling the reading position by the optical head 3 is sent to the reading position control section 6, and a motor control signal Cs for controlling the rotational speed of the disk rotation motor 2 is sent to the motor. A muting control signal Cm for controlling the transmission of the audio signal A is supplied to the control section 11 and the program 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 outputs a drive signal 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. C3 is sent out 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 l, and the drive signal C2 is sent out to control the tracking control built into the optical head 3. The optical head 3 is assumed to operate in a search operation state, and the optical head 3 is assumed to operate in a search operation state. Further, the motor control unit 1 is connected to the system control unit 10.
In response to the motor control signal Cs supplied to the disk rotation motor 1, a drive signal C4 is supplied from the motor control section 11 to the disk rotation motor 2 to rotate it at a constant linear velocity, for example.

In the player DP according to this example having the configuration as described above, the priority operation mode switching means selects one of the continuous playback mode, individual playback mode, and programming mode when the power is turned on. , or in addition, continuous playback mode key 2
11 Individual playback mode key 22 or programming
When any one of the mode keys 23 is operated, continuous playback mode, individual playback mode or program mode is activated.
, ramming mode is taken. 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 is operated to specify a trunk number corresponding to one segmented program information, only the track number indicated by the designated track number out of the plurality of segmented program information recorded on the disk 1 is directly reproduced. An operating state is assumed. Furthermore, when the programming mode is set, each time the program information selection key 26 is operated, the program information selected from among the plurality of segmented program information recorded on the disk L is directly selected by the operated program information selection key 26. The playback order for the programs is stored in the memory built into the system control unit 10, and when the play key 24 is operated, the segmented program information whose playback order has been stored is stored in the stored playback order. An operating state is assumed in which the data is sequentially reproduced according to the following.

The system control unit 10, which controls the reproduction of the plurality of segmented program information recorded on the disk "1," is configured using, for example, a microcomputer, and the microcomputer controls the reproduction of the program information from the disk "1". An example of a control operation program executed to control information reproduction will be described with reference to the flowcharts shown in FIGS. 4A, B, and C.

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 proceeds to process 102, where continuous playback mode -1--21 is pressed to enter the continuous playback mode, the continuous playback mode indicator light CL is turned on, and then the process proceeds to decision 103. . On the other hand, if it is determined in decision 101 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 or not the individual playback mode priority switch 33 is in the ON state, and the individual playback mode is Priority switch 33 is ON
If it is determined that the current state is present, the process proceeds to process 105, where the individual playback mode key 22 is pressed to enter the individual playback mode, the individual playback mode indicator light S L is turned on, and then the process proceeds to decision 103. move on. Further, if it is determined in decision 104 that the individual playback mode priority switch 33 is not in the ON state, process 106
, press the programming mode key 23 to enter the programming mode, turn on the programming mode indicator PL, and then proceed to decision 1.
Proceed to 03.

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 advances to process 109 and the continuous playback mode indicator light CL is turned on. At the same time, the individual repeat mode indicator light SL and the programming mode indicator light PL are turned off, and the process proceeds to decision 110. On the other hand, in decision 108, it is determined that the continuous play mode key 21 is not pressed. If so, the process advances to decision 111, where it is determined whether the individual' playback mode key 22 is pressed or not. 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 - Turn off the mode indicator light PL 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 1. If it is determined that the carry key 26b has not been pressed, the process directly proceeds to decision 115, where it is determined that the carry key 26b has been pressed. If
Proceeding to process 116, the built-in selection key memory KM
10 is stored in , 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, the carry key 26b is further pressed.
Each time is pressed, the number stored in the selection key memory KM is 1.
Incremented by 0. In the process 117, the contents of the tens digit stored in the selection key memory KM, for example, 1. 2.
3 or 4 etc. is displayed on the tens place display section 35 al in the track number display section 36 a, and
Enter the ``-'' sign in the digit display section 36a'' using the direct key 2.
The display will blink until 62 is pressed. When the carry key 26b is pressed in this way, 10 or a multiple thereof is temporarily stored in the selection key memory KM, and the 10's digit is displayed on the display section 36a' of the track number display section 36a. 36a", a flashing "-" sign is displayed, so that even if more than 20 segmented program information is recorded on disk 1, easy operation can be performed without increasing the number of direct keys 26a. It is now possible to specify the track number corresponding to the segmented program information, and it is also possible to visually indicate that the tens digit of the track number has been memorized, indicating the next operation to be taken. , direct key 26a
This prevents you from forgetting to press the button.

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, and if it is determined that the play key 24 has been pressed, the process proceeds to decision 118 to determine whether play (playback state of program information from disk 1) is in progress. to judge. If it is determined that the game is not in progress, decision 119 (
If it is determined that play is in progress, proceed to isojon 120 (FIG. 4C); on the other hand, if it is determined in decision 115 that the play key 24 is not pressed, The game proceeds to decision 121, and similarly to decision 118, it is determined whether or not play is in progress. If it is determined that play is in progress, the process proceeds to decision 120 (C in Figure 4), and it is determined that play is not in progress. If so, 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, in process 11.6 described above, select key memory KM
The number stored in (0 if the carry key 26b is not pressed) and the number of the pressed direct key 26a are added, the sum is stored in the selection key memory KM, and the process proceeds to decision I22. , determine whether or not the program is in programming mode. This judgment is made using the programming mode indicator light P.
This is done by detecting whether the programming mode indicator light PL is in the clear state or in the clear state, and if the programming mode indicator light PL is in the clear state, it is not in the programming mode but in continuous play mode or individual play mode. If it is determined that there is a track number stored in the selection key memory KM, the program proceeds to process 123, sets the target address to the beginning of the segmented program information represented by the track number stored in the selection key memory KM, and 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 1.25, where the play operation indicator light RL is turned on.

In the subsequent process 126, a muting control signal Cm is supplied to the program information processing unit 8 to put the program information processing unit 8 into a minting operation state, and in a process 127
Proceed to. In process 127, the reading position by the optical head 3 is the target address set in process 123.
In order to reach the beginning of the segmented program information represented by the trunk 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 both address data do not match, they should be made to match (supply the control signal Cc to the reading position control section 6. This causes the reading position control section 6 to output the drive signal Cc.
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, the process proceeds to decision 128, 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 proceeds to decision 128. Then, the process returns to process 127, and the above-described reading position control using the optical gutter 3 is performed again, and this is repeated.

If it is determined that the reproduction address/data D matches the target address, the process proceeds to process 129, and the muting control i supplied to the program information processing unit 8
The program information processing unit 8 stops sending out the ll signal Cm.
The muting state is canceled and the process returns to process 103.

As a result, in continuous playback mode or individual playback mode, playback of a specified piece of segmented program information recorded on disk l can be performed in accordance with the recording sequence order, or only the specified piece of program information can be played back. Then, the reproduction program information +1 (audio signal A, number 2) is obtained at the output terminal 9.

On the other hand, if the digital controller 122 determines that it is in the programming mode, the process advances to the isojon 130 and checks whether the total number of programming flags F2 representing the total number of segmented program information specified by the operation of the program information selection key 26 are at the maximum. That is, it is determined whether the total number of programming flags F and z have 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. Then, proceed to process 132, and turn on the play operation indicator light R.
Blink L.

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 memo + JPM.
It is stored in the location indicated by the total programming number flag Fz obtained in .

That is, the programming memory PM stores the reproduction 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 (Figure 4B) to proceed when it is determined that the game is not in progress in the above-described decision 118
In step 122, it is determined whether the program is in programming mode or not, similar to decision 122 described above. As a result, if it is determined that the mode is programming mode, the process advances to decision 135 and checks whether the total number of programming flags Fz is 0, that is, if the track number corresponding to the specified section program information is in the programming memory. 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, clearing the programming mode indicator PL and lighting 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 disc 1, that is, the track number "1".
” at the beginning of the segmented program information represented by process 125. process 126.
Process 127. Decision 128 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, at least one track number corresponding to the designated segmented program information is recorded in the programming memory PM as 1, α
If it is determined that the program has been played, the program proceeds to process 138, where 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 programmed.
The track number stored in the position indicated by the program performance flag Fp of the memory PM is set to the beginning of the segmented program information, and the process proceeds to process 125, and the flow proceeds as described above.

This allows, under programming mode,
Pre-programming and programming of a designated one of the plurality of segmented program information recorded on disk l.
Restored in memory PM.

Playback is performed according to the raw order.

For programming, use Decision 119 mentioned above.
If it is determined that the mode is not selected, that is, if it is determined that the mode is continuous playback mode or 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 trunk number is not O, that is, if classification program information is specified, the process proceeds to process 141 and the target address is set to the track 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 there is no change in the reproduction address data D, the decision element Return to step 103. 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, where the new playback address/data D is stored in the built-in memory, and the process proceeds to process 143. In process 143, the track number is displayed on the trunk 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 trunk 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 disk 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, where the program information processing section 8 is put into a muting state (the muting control signal Cm is supplied to the program information processing section 8, and the muting control signal Cm is supplied to the program information processing section 8, , the process proceeds to process 148 and the control signal C is supplied to the reading position control section 6.
c and the motor control signal Cs supplied to the motor control unit 11
stops sending out the optical head 3 and ends control over the optical head 3;
The operation of reproducing program information from disk 1 is completed and the process returns to decision 103.

On the other hand, if it is determined in decision 144 that the track 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 it is, the above-mentioned processes 147 and 148 are executed in sequence to finish the reproduction operation of the program information from disk 1, and the process returns to decision 103, where it is determined that the individual reproduction mode is not present. If so, proceed to decision 150 to determine whether or not the program is in the programming mode.If it is determined that the program is not in the programming mode, the program returns to decision 103 to continue playing the program information from disk 1. However, if it is determined that the program is in the programming mode, the process proceeds to process 151, in which the program performance flag Fp is incremented by 1, and the process proceeds to decision 152. In decision 152, the total number of programming flags Fz is smaller than the program performance flag Fp. If it is determined that the total number of programming flags Fz is smaller than the program performance flag Fp, the program proceeds to process 147 and proceeds in the same flow as in the case described above, and the program information from disk l is After completing the playback operation, the process returns to decision 103, and if it is determined that the total number of programming flags Fz is not smaller than the program performance flag Fp, the process proceeds to process 139, whereupon the process proceeds in the same manner as in the case described above, and the disc 1 The reproduction of the specified one out of the plurality of segmented program information recorded in the program memory PM is continued according to 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, and to store the playback order in advance in the memory means. A programming mode in which selected segmented program information can be reproduced according to the playback order selected, and a plurality of segmented program information recorded on the disk can be sequentially reproduced from the playback start end according to their recording arrangement order. In some cases, playback can be started from the beginning of a selected one of a plurality of segmented program information recorded on a disc, and each subsequent segmented program information can be sequentially played back in accordance with the recording arrangement order. A continuous playback mode and, if necessary, an individual playback mode in which only selected pieces of segmented program information recorded on the disc can be played back. When the programming mode is selected, simply by operating the program information selection key, the playback order of a desired one of the plurality of segmented program information recorded on the disk is stored in advance in the memory means. In addition, when continuous playback mode or individual playback mode is selected, simply by operating the program information selection button, multiple program information segments recorded on the disc can be selected from the beginning of the desired one at the back. By operating the play keys in the programming mode, you can play the programs sequentially or only as desired. Furthermore, by operating the play keys in the programming mode, the playback order can be played in accordance with the stored playback order of the segmented program information. It is possible to obtain the playback output or the playback output according to the recording arrangement order from the playback start end of each section program information recorded on the disk. Therefore, the desired operation can be performed directly by one-touch operation of the program information selection key. In addition, whenever the play keys are operated, the segmented program information recorded on the disc is always reproduced, providing 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 continuous playback mode key, 22 is individual playback mode key, 23 is programming/
Mode key, 24 is a play key, 2G is a program information selection key, 31 is a priority operation mode switching means, 35 is a display surface, CL is a continuous playback mode indicator, SL is an individual playback mode indicator, PL is a programming mode indicator Light, R
L 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. Under the condition that the mode selection key is operated to select the first operation mode, when the program information selection key is operated, each section program information recorded on the disk is transmitted to the reading position control means from the program information. A control state is assumed for sequentially reproducing the items specified by the selection key according to the recording arrangement order, and when the operation mode selection key is operated to select the second operation mode, the program Each time the 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, if the playback order is stored, the reading position control means controls to sequentially play back the segmented program information whose playback order is stored in accordance with the stored playback order. state,
If the playback order has not been memorized, the operation mode selection key is switched to the state obtained when the operation mode selection key is operated to select the first operation mode, and the reading position control means is activated to record the playback order on the disc. A disc player configured to take a control state for sequentially reproducing recorded segment program information according to the recorded arrangement order.