JPH0258717B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc-shaped recording medium reproducing device, which reproduces a program control signal from a disc-shaped recording medium (hereinafter referred to as a disk) on which a program control signal is previously recorded in a spiral track in addition to an information signal. An object of the present invention is to provide a disk-shaped recording medium playback device (hereinafter referred to as a disk playback device) that plays back and stores a program control signal, and controls playback of a disk using the stored program control signal.

Conventionally, when a disc playback device wants to play back information recorded on a disc in a desired order and speed, a program for controlling the playback operation of the disc playback device is stored in a storage device by operating keys on a control panel, etc. There was a device that controlled a disk playback device using program instructions and performed random access playback.

However, with this conventional device, if the program stored in the storage device is erased or the disk is replaced, the contents of the program must be set again by operating keys, etc.
If the operation is troublesome and you use the disk in a prescribed way such as asking questions and answering questions, please refer to the instructions for storing the program and perform the above settings. However, this method has disadvantages such as having to be manually operated and being cumbersome to operate.

The present invention eliminates the drawbacks of the above-mentioned conventional devices, and an embodiment thereof will be described below with reference to the drawings.

In FIG. 1, 1 is a disk, 2 is a turntable, and 3 is a motor. For example, the motor will run for 1 minute.
Rotate turntable 2 at 900 rpm. The regenerator 7 is driven via a motor 4, a wire 5, and a pulley 6, and is moved radially above the disk 1. A program control signal, which will be described later, is prerecorded on the disk 1 along with information signals.

The signal reproduced from the disk 1 by the regenerator 7 is amplified by the amplifier 8 and is input to a second-half separate circuit 9.
This discrimination circuit 9 discriminates between the information signal including the video signal in the reproduced signal and the program control signal, extracts the program control signal, and supplies it to the storage circuit 10, where it is stored.

The information signal discriminated and extracted by the discrimination circuit 9 is supplied to a monitor receiver 16 via an amplifier 15 and reproduced as an image and sound.

After being stored, the program control signals stored in the memory circuit 10 are sequentially read out and supplied to the control circuit 11 in a predetermined order, and the control circuit 11 controls the motor 4 based on the supplied program control signals. The rotation is controlled, and the transfer stop of the regenerator 7 is controlled.

The selection device 13a sends a selection signal to the comparison circuit 12 by its operation. The answer device 13b is provided with operation buttons such as numeric buttons and alphabet buttons, and an answer signal is sent to the comparison circuit 12 by operating the buttons.

The comparison circuit 12 receives a selection signal or an answer signal,
A program control signal matching the contents of the memory circuit 10 is sent to the control circuit 11.

14 is a comparator circuit that separates the synchronization signal from the reproduced signal from the amplifier 8, and connects this synchronization signal with the motor 3.
The rotation detection signal of the motor 3 is compared with the rotation detection signal of the motor 3, and the rotation of the motor 3 is controlled via the control circuit 11.

The control circuit 11 supplies a muting signal to the amplifier 15 so that unnecessary signals do not appear on the screen of the monitor receiver 16 while the regenerator 7 is reproducing the program control signal. This is because the program control signal is recorded superimposed on the video period of the video signal.

On the disk 1 used in this disk playback device, a program control signal is recorded, for example, on the first part (outermost circumference) of the disk 1 for one or more rounds, and then on the last part (innermost circumference) of the disk 1. Information signals are recorded throughout. Furthermore, when the disk 1 rotates at 900 revolutions per minute and the playback time is 1 hour, 54,000 tracks are formed on the disk 1, and addresses from 0 to 54,000 are assigned to these tracks.

Here, the program control signal recorded on disk 1 is, for example, normal playback from address 50 to address 100, static playback for 30 seconds to address 1001,
Assume that the program control contents include double-speed playback from addresses 1002 to 3000 and normal playback from addresses 3001 to 10000. When this disc 1 is mounted on the turntable 2 of the disc playback device and the playback button is pressed, the disc playback device starts. First, the program control signal on the outer periphery of the disc 1 is played back by the regenerator 7, and the storage circuit 10 is supplied and stored. While this program control signal is being reproduced, a muting signal is sent from the control circuit 11 to the amplifier 15. The stored program control signals are sequentially read out, and the control circuit 11 sequentially controls the motor 4 and the transfer of the regenerator 7 according to the commands of the program, and performs normal playback and static playback according to the program. , double speed playback, and normal playback. Therefore, just by operating the play button,
Automatically, according to a predetermined program, disk 1
Therefore, video information can be reproduced more easily. The reproduced video information is supplied to a monitor receiver 16 via an amplifier 8, a discrimination circuit 9, and an amplifier 15, and is reproduced as images and audio.

Further, as another example of the format of the program control signal recorded on disk 1, the contents of the program control are divided into multiple groups, and the first group is normal playback from address 100 to address 300,
Addresses 500 to 1000 are played at double speed, addresses 2000 to 10000 are played normally, and the second group is played back normally from addresses 100 to 1000.
Normal playback is defined from addresses 5000 to 15000.

When this disk 1 is reproduced, the program control signal reproduced in the same manner as described above is transferred to the storage circuit 10.
is memorized. Here, the selection device 13a selects
A desired group, for example, the first group, is selected from among the plurality of groups. When you press the selection button,
The selection signal is sent to the comparison circuit 12, this selection signal is compared with the signal from the storage circuit 10, the comparison result is sent to the storage circuit 10 and the control circuit 11, and the control circuit 11 selects the signal from the storage circuit 10. The information signal is reproduced according to the control details of the selected group. In the above example, the first group is selected, so normal playback is performed from address 100 to address 300, and playback is performed normally from address 100 to address 300.
The control circuit 11 sequentially performs predetermined reproduction control such as double speed reproduction from address to address 1000.

Furthermore, as another example of the format of the program control signal, the information signal includes content in the form of a question, for example, a question is prepared at address 1000, the answer is "1",
"2" and "3" are specified, and it is requested to select one from these, and when the program control signal is "1", it returns to address 500 and plays normally.
When it is "2", continue to the next one and play normally,
When it is "3", a program is set to return to address 100 and play normally, and this program control signal is recorded on disk 1.

When this disc 1 is reproduced, the reproduced program control signal is stored in the storage circuit 10. Next, the information signal is stored, the information about the question being asked is stored, and the question is reproduced as an image on the monitor receiver 16.

Here, when answering the question, for example, "3" among the answers "1" to "3", the answering device 13
Use b to operate the number button "3". The answer signal is sent to the comparison circuit 12 and compared with the signal from the storage circuit 10, and the control circuit 1 is sent to the comparison circuit 12 according to the comparison result.
1, and the command returns to address 100 for normal playback.

For example, if a question such as ``What is the answer?'' is prepared at address 200, and the correct answer is input from the answering device 13b, the process continues as is, but if the answer is incorrect, the process returns to the beginning. Then, it becomes possible to control the playback again.

Furthermore, in the case where the information content as shown in FIG. 3 is displayed on the monitor receiver 16 or written on the jacket containing the disc 1, the above selection device 13a is used. For example, when the selection button corresponding to search number 3 is pressed, chapters 10, 15, 25, 26, and 30 are played in this order.

In the example using the answer device 13b, when the answer button corresponding to search number 3 is pressed, the contents of chapter 10, for example, are played back and displayed, and in the final image of chapter 10, the next "15" is input ( By pressing the "15" answer button on the answer device 13b when a screen appears asking you to enter the key-in (key-in), Chapter 15 may be played, or the final chapter of Chapter 10 may be played. You can also use the image to ask if you want to continue or not, and if the answer is "yes," then Chapter 15 will be played.

As for the form in which the program control signal of the disk 1 is recorded, for example, the program control signal is recorded only on the beginning part of the disk 1 (for example, between positions a and b on the outermost circumference of the disk 1 in FIG. 3), as in the above-mentioned embodiment. The information signal is not limited to being recorded in all of the other sections (positions b to), and the following form may be adopted. That is, the entire information signal may be divided into a plurality of blocks depending on the contents of each block, and the program control signal may be recorded before or after each information signal block, or before and after each information signal block. In this case, for example, in FIG. 3, a program control signal (or information signal) is placed between positions a and b, between c and d,
Information signals (or program control signals) are recorded in the sections between .about.c, d and e, respectively.

Other examples of the recording format of the program control signal include areas that do not have a relatively negative effect on the image, such as during the horizontal scanning period that does not appear on the screen near the vertical blanking period, or at the bottom of the screen. The program control signal may be present during the horizontal scan period. Furthermore, by separating the information signal and the band,
Along with the information signals, program control signals may also be present. In these cases, there is no track section dedicated to the program control signal, and the program control signal is embedded in the information signal.

As described above, the information reproducing apparatus of the present invention has a disc-shaped recording medium in which a program control signal is superimposed on an information signal including a video signal and recorded in a spiral track. means for reproducing the information signal reproduced by the reproducing means; means for extracting and storing a program control signal from a video signal included in the information signal reproduced by the reproducing means; and controlling the reproducing means by the stored program control signal. Since the structure consists of means, there is no need to store the playback control program in the storage device by key operation as in the past.
The playback operation of the disc-shaped recording medium playback device can be automatically controlled, and a program control signal indicating program control contents of a plurality of groups is superimposed on the video signal and recorded on the information signal including the video signal on the disc-shaped recording medium. means for selecting a group of desired program control contents from among the plurality of groups of program control contents; and means for reading a program control signal of the selected group from the storage means and controlling the reproduction means. Since the configuration further includes the following, it is possible to control playback according to the program contents of the desired selected group.
Furthermore, if a program control signal indicating program control contents according to the answer to the question is recorded in the information signal including the video signal on the disk-shaped recording medium, the program control signal indicating the program control contents according to the answer, among the program control contents according to the answer. The structure further includes an answering means for instructing the program control contents according to the answer, and a means for reading out the program control contents according to the answer from the storage means and controlling the reproduction means.
The answer format can be automatically reproduced, making it especially convenient for use in learning or business purposes.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the disk-shaped recording medium reproducing apparatus according to the present invention, FIG. 2 is a diagram illustrating an example of a reproduced image, and FIG. 3 is a block diagram of an embodiment of the disk-shaped recording medium reproducing apparatus according to the present invention. 1 is a track pattern illustrating an embodiment of a disk. DESCRIPTION OF SYMBOLS 1... Disc-shaped recording medium (disc), 2... Turntable, 3, 4... Motor, 5... Wire, 6... Pulley, 7... Regenerator, 8, 15... Amplifier, 9... Discrimination circuit, 10... Memory Circuit, 11... Control circuit, 12,
14... Comparison circuit, 13a... Selection device, 13b... Answering device, 16... Monitor receiver.

Claims (1)

[Claims] 1. A program control signal is superimposed on an information signal including a video signal from a disc-shaped recording medium recorded on a spiral track by superimposing the program control signal on the video period of the video signal. a reproduction means for reproducing the information signal; a storage means for extracting and storing the program control signal from a video signal included in the information signal reproduced by the reproduction means; and controlling the reproduction means using the stored program control signal. 1. A disk-shaped recording medium reproducing device comprising: a control means for controlling a disk-shaped recording medium; 2. A video signal on which a program control signal indicating program control contents of a plurality of groups is superimposed on an information signal including a video signal is recorded from a disc-shaped recording medium superimposed on a video period of the video signal. a reproduction means for reproducing the information signal contained therein; a storage means for extracting and storing the program control signal from the signal reproduced by the reproduction means; and selecting a group of desired program control contents from among the plurality of groups of program control contents. 1. A disc-shaped recording medium reproducing apparatus comprising: a selection means; and a control means for reading a program control signal of the selected group from the storage means and controlling the reproducing means. 3. A program control signal indicating program control content corresponding to an answer to a question is superimposed on an information signal including a video signal from a disc-shaped recording medium on which the program control signal indicating the program control content according to the answer to the question is recorded superimposed on the video period of the video signal. a reproduction means for reproducing information signals including video signals reproduced by the reproduction means; storage means for extracting and storing the program control signal from the signal reproduced by the reproduction means; 1. A disc-shaped recording medium reproducing apparatus comprising: an answering means for instructing program control contents according to the answer; and a control means for reading program control contents corresponding to the answer from the storage means and controlling the reproducing means.