JPS6029984A - Information reproduction and play device - Google Patents

Abstract

PURPOSE:To avoid the stoppage of a picture due to a searching action by using at least two pairs of detection head systems and performing a high-speed search for the next reproduction by one system before the video reproduction is ended with the other system. CONSTITUTION:A detection head 2', a head drive means 4' and a control means 5' are newly added. A main control means 7 controls a switch means 10. The output signal of a motor 3 is connected to the (a) side while a reproduction means of the (a) side is performing reproduction. A the same time, the output of a detection circuit 5a of a follower control means 5 is connected to a signal processing means 8. While the output of the motor 3 is connected to the (b) side while a reproduction means of the (b) side is operated. The output of a detection circuit 5a' is connected to a means 8. Thus the reproduction means of one side performs a search while the reproduction means of the other side is delivering a picture. Then a detection head 2 or 2' is set waiting at the head position of an array and at the next branch point. When a picture is selected at a branch point, the head of one side has a searching action and the output is switched to the other head.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information reproducing performance device used for a car driving simulator, an airplane piloting simulator, a travel guide, or other games.

[Prior art]

A disk-shaped recording medium such as a video disk has multiple or multiple sets of image information signals arranged concentrically on the disk, and an address is determined and recorded based on the arrangement of each signal, so the operator can also read the address. It is possible to freely select and combine any signals with and to randomly reproduce or perform. Therefore, such a disk can be used to construct a car driving simulator or an aircraft piloting simulator, but as the distance of each discontinuously arranged signal on the screen becomes large, it takes several seconds for the detection head to move. Because it saves time, it has the disadvantage that the screen display stops for that amount of time.

Figures 1 to 5 show such conventional car driving simulators. For example, on a road as shown in Figure 1 (a), lanes A, B (Nl, A'
.

0■, For example, the view of the road in front of the driver's seat of a fifth-wheeled vehicle is composed of about 100 still images of deer, as shown in EL, and these are sequentially output on the screen. An example of simulating driving is shown. Note that the illustrated example shows driving on the right side. Prepare 100 still images of the car MA 2 from the starting point on the road surface, then create 100 images of the car while moving in the direction of lane B, and then create 100 images of lane B' (toward), which rotates in the opposite direction. Prepare 100 sheets. Furthermore, lane A
'(Prepare 100 still images facing in the N+ direction. In the figure, the numbers 1 to 499 indicate the addresses of the still images in each lane.

The still images of each of the lanes A~, . Instead, information signals such as audio signals and video signals are recorded in a predetermined array, and an address indicating the position on the board is recorded in each array element.

FIG. 3(a) shows a reproducing device for the disk 1, and 2 is an optical, magnetic, electrostatic, etc. detection head for reproducing and detecting the information signal on the disk 1, and 2 is a detection head radiating from the center of the disk 1. It is movable. 3 is a rotary drive motor that rotates the disk 1 at a constant angular velocity; 4 is a head drive device that moves the head 2 to an arbitrary position on the disk 1;
5 is a slave control means, and this slave control means 5 includes a detection circuit 5a for amplifying and detecting the signal detection output from the detection head, and a jitter control provided in the head 2, as shown in FIG. 3(B). Jitter servo device 5 that generates control output to the member
b, a tracking servo device 5° that generates a control output to the tracking control unit Kiri provided in the head 2;
A motor servo device 5d that controls the motor 3, a synchronization separation device 58 that controls each control signal, and the head 2.
It has an address detection device 5f that detects the position on the board of the head movement device 5, and a feed selection device 5g that controls the feed amount of the head movement device value 4. The player's operation, that is, the head drive device 4 is controlled by the feed drive device 5h and the feed detector 51 by controlling the input/output signals of the player. Figure 3 (
In a), 6 is an input device through which the operator instructs the player's actions, 7 is a main control means having a program memory and a computing unit that controls the slave control means 5 based on the motion commands from the input device 6, and 8II'i slave control. No. 48 processing means for converting the output of a signal detector provided in the means into an information signal such as audio or image 9 characters; 9 is an information signal output and is connected to an image monitor, audio amplifier, other information output device, etc. This is the output terminal.

Next, the operation of the above apparatus will be explained with reference to the flow shown in the fourth figure.

When the player is powered on in step a1, the main control device controls the player's power supply, rotates disk 1,
Initial operations such as setting the detection head 2 to the starting position of the board are performed. Next, in step a2, the information addresses and the like of each array recorded on the disc 1 are input and stored in the main computer of the player, and the player waits for instructions from the operator. Thus, when the operator commands operation from the start position (address 100) in step a3, step a4.
Address the detection member to the player's slave control means with a5]
A command to search at position 00 is issued, a search is performed, and the head drive device 4 moves the detection head 2 to the position on the disk 1 where addresses 100 to 199 are recorded. When the search is completed, still images at addresses 100 to 199 are output to the screen in order at steps a6 and a7.
The screen changes as if the operator were driving straight through the area of Lane A.

Figure 5 shows the flow of such high-speed search control and still image control, and these two control sounds are shown in the flow as slave control and main control by two computers, but this is easy to explain. This is because it can be operated by the same microcontroller if the interrupt processing and other configurations are devised.

When the operator stands at the branch point BIt□ at address 199, the operator instructs whether to go straight or turn left in step a8. If you instruct to go straight, step ag + aH6 is address 20.
The screen of the next lane B pass on the disk 1 at 0 to 299 is output continuously. Thus address 299
When the operator reaches the branch point BR2, the operator inputs a right or left turn signal in step a11.

In response to this question, when turning right, the detection head 2 moves to the next address 300 to 399 shown in step a step 2, and lane A'
Output the eJl screen to 1 lie.

In this case, the selection does not make the operator feel strange because the array is selected at a continuous position on the disk 1. However, when a left turn is selected at the initial branch point BR1, the next lane B'(1'J) is searched at high speed as shown in steps a13 and B14, and the head drive device 4 moves the detection head 2 to the lane B of the disk 1. The camera moves to the position where the image of the ``mark'' was recorded, that is, the address 400.Next, in step aIsl 816, a still image of the lane B' axis is displayed.Furthermore, when a left turn is selected at the latter junction BR2, the step As shown by a201 B21, the next lane B(N) is searched at high speed, and the head driving device 4 moves the detection head 2 to the position where the image of the lane B axis of the disk 1 is recorded, that is, address 200.Next, Step a91: The screen for lane B0 is reproduced as shown by alo.

In other words, after outputting lane A(N), the operator
The next movement is simulated by giving the player the choice of going straight or turning left in 1, but in this case, when the straight car selects i1B axis, the screen continues without disappearing, but on disk 1 Discontinuously recorded left turn lane B' (to) address 400-4
If you choose 99, go to lane B.

Temporarily (
The disadvantage is that the screen may disappear (for several seconds).

As described above, when it is necessary to output signals discontinuously arranged on the disk 1, a high-speed search is required to move the detection head 2 to a predetermined recording position on the disk 1 before outputting the signals arranged discontinuously on the disk 1. The screen freezes for several seconds, creating an unnatural appearance.

That is, in the method using this conventional configuration, as shown in simplified form in Figure 4 (b), the branch points J3R1, B10. BR3
The next selection in will always lead to step a13 + B14.
; a2o+az,: as. ;a had the disadvantage that the screen would inevitably stop due to high-speed search.

In order to eliminate this drawback, it is possible to arrange multiple identical players and prepare −j number of identical discs in each player, thereby reducing the time it takes to search.
It is necessary to prepare multiple discs with the same content and to prepare another computer for synchronized control of each player, which has disadvantages such as ease of operation, cost, and the need to install equipment at an art school. Ta.

[Object of the Invention] - The present invention has been made in consideration of the above-mentioned circumstances, and includes at least two sets of detection heads and head drive devices, so that before the image reproduction of one detection head is completed, the other detection head performs the following operation. It is designed to perform a high-speed search for playback resources.

[Configuration of Example]

An embodiment of the present invention will be described below with reference to FIG. 6.7, using the same reference numerals for the same parts as in the prior art.

As shown in FIG. 6, a detection head 2, head driving means 4', and slave control means 5' are newly added to the conventional apparatus shown in FIG. 3(A). This newly added detection head 2' is provided at a sufficient distance from the previous detection head 2 so as not to overlap or come into contact with each other. The control signals for the motor 3 outputted from the slave control means 5, 5' are sent to the signal path to the motor 3 and 4M signal processing means 8 via the switching means 10, and the switching means 10 is connected to the control signal from the main control means 7. Depending on the signal, multiple means may be selected.

[Explanation of action]

Next, the operation of this device will be explained. Conventional reproduction means ■,
Assuming that the newly added reproduction means marked with 1 is ■,
The main control means 7 controls the switching means 10, and when the ■ side is in regeneration operation, the output signal of the motor 3 is connected to the ■ side by the switching means 10, and the output of the detection circuit 5a of the slave control means 5 is connected to the signal It is connected to processing means 8. On the other hand, when the ■ side is in regeneration operation, the output signal of the motor 3 is connected to the O side by the switching means 10, and the output of the detection circuit 5a' of the slave control means 5' is connected to the Sengoso Misaki means 8. .

Next, the operation of the above apparatus will be explained with reference to the flow shown in FIG. Similar symbols are used for the same steps according to FIG. 4 of the prior art. Further, in FIG. 7, the portion marked with ■ indicates step a using a device similar to the conventional one, and the portion marked with ■ indicates step b using a newly added device.

Before reaching the first branch point BR1 from step a1, the address 400 of the lane B'H that may be selected next is searched at high speed in step a, then step b1, and the next step is step a7. At b2, the head driving device 4' moves the detection head 2' to the position where the image of the disk 10 wheel #B' was recorded, that is, to address 400. Therefore, when a left turn is selected at the branch point BR□, immediately change to lane B at steps b3 + b4...
′ (to) images are displayed continuously.

In step a, by the time the second branch point BR2 is reached, the car 1B (
The address 200 of Nl is searched at high speed, and step b
At step 11, the head driving device 4' moves the detection head 2' to the position where the image of lane 8 of the disk 1 was recorded, that is, address 2.
Move to 00. Therefore, when a left turn is selected at the branch point BR2, steps b13 + b14...
Immediately, images of lane BeJl are displayed successively.

When the third p branch point BR3 is reached from step b13, the process proceeds based on the screen output from the detection head 2' that has been searched in advance, and in step a15, the lane B (Nl address 200) which may be selected next At step a16, the head driving device 4 moves the detection head 2 to the lane B of the disk 1 (the position where the image of [ is recorded, that is, address 200).

Therefore, when the branch point BR3 is reached, the screen is output continuously at O, or the output on the ■ side searched in advance is selected during the output of 0, and the screen is continuously reproduced.

When the operator selects and plays two or more discontinuous arrays on the disc, for example, step 1 as described above.
) 3 + b4 Before reaching the branch point BR1, the screen output is switched on the O side, which was searched in advance, but the next branch point BR4 is reached at the address 430 of step b on the way. The operator is asked about the next direction of travel on a part of the screen as shown in Figure 8, and the operator is instructed to do so. What is the arrow in this figure 8? The unnatural appearance can be avoided by displaying the image overlapping the still image on the screen.

The operator decides whether to go straight or turn right at the branch point BR4 at address 499.
If the instruction is given before reaching , (before the time required for high-speed search), the unused 01 rule will be searched in the direction determined by the selection, and the timing will be set. That is, if you are instructed to go straight, step a! , o set the ■ side to address 300, and the screen of lane A' pass is displayed continuously from branch point BR4. When a right turn is instructed, all side addresses 400 are set in advance in step a60, and the screen of the branch point BR and lane B'H, which was earlier than that, continues to be displayed. When the vehicle enters the branch point -, the process of inquiring about the direction selection at the branch point is performed again in the same manner as described above.

The method of inquiry is slightly different at branch point BR1, but since the time required for the search can be predicted, it may be possible to inquire of the operator about the direction of travel within the time that has been estimated in advance. .

〔effect〕

As described above, in the above device, while one of the playback means (■ or timing the detection head 2 or 2' to the negative position of the head;
When a screen is selected at a branch point, the output is switched from one head that was conventionally reproducing to the other searched head, and screen signals can be output continuously. Therefore, conventional searches had the disadvantage that the screen would freeze, but
According to the present invention, the screen can be continuously displayed without stopping, and unnaturalness of the simulation can be prevented.

According to the present invention, in terms of hardware, the rotation mechanism (including the motor) that supports and rotates the disk with high precision is one part.
Furthermore, the complex signal processing (image processing) section only needs to be prepared in one piece, and since operations that conventionally required multiple players can be performed with one player, it can be provided at a low cost. . In addition, in terms of software, the operator only has to operate one player, which not only makes it easy to handle advanced software play that requires advanced technology, but also reduces running costs since all one has to do is purchase one disc. It is also cheap.

In this embodiment, a video disk is taken as an example, and still images are used as the array elements, but the array elements may be moving images or information contents such as characters or audio signals.

Further, although the control means have been described as master and slave, these master and slave control means can also be constituted by one microcomputer by configuring them by interrupt processing or the like. Furthermore, although this embodiment shows a two-dimensional simulation using two mechanisms, the present invention is not limited to this, but by increasing the number of mechanisms to three to four, it is possible to create a three-dimensional simulation such as a simulation of an airplane moving at high speed. It becomes possible to deal with dimensional objects, and brings about the sophistication and expandability of disc player software.

[Brief explanation of the drawings] Figure 1 (a) is an explanatory diagram showing a road in a conventional car driving simulator, (b) and (c) are diagrams of the scenery at the two addresses, and Figure 2 is a video thereof. FIG. 3(a) is an explanatory diagram showing the recording state of images of each lane on the disc, FIG.
Block diagram showing details of the slave control means in (b), No. 4
Figure (a) is the flow diagram, ←) is a summary diagram of the flow diagram of (a), Figure 5 is a flow diagram of high-speed search control and still image control, and Figure 6 is an example of an embodiment of the present invention. FIG. 7 is an explanatory diagram showing an outline of the disc reproducing apparatus, FIG. 7 is a flowchart thereof, and FIG. 8 is an explanatory diagram of its screen. 2.2'...detection head, 1...disk, 4.4...head driving means, 3...motor mechanism, 5,5'... Slave control means, 7...
・Main control means ・6°゛°°° input means ・5a・5a'・
... Information signal detection circuit, 8 ... Signal processing means, 1o ... Signal switching means, ■, ■ ... Reproducing means group. Calculation 11 Ki9kuni C I) Procedural amendment (method) December 5, 1989 1, Display of the case Relationship with Patent Application No. 139686 (002) Akai Electric Co., Ltd. 5, Amendment subject

Claims (3)

[Claims] (1) A detection head means for detecting information signals arranged and recorded in a fixed arrangement order on a disk-shaped medium, a head drive means for moving the head to an arbitrary position on the disk, and a rotation means for rotating the disk at a constant angular velocity. a motor mechanism for controlling the motor mechanism, a slave control means for controlling the operations of the motor mechanism and the head drive mechanism, a main control means for controlling the slave control means to perform random performance, and an input for an operator to input control conditions into the main control means. and a signal processing means for processing a signal output from an information signal detection circuit included in the slave control means and supplying the output to a device outside the player body, the detection head means. and a plurality of reproducing means groups such as the head drive means and slave control means are provided, the disk-shaped moving direction of each of the plurality of detection head members can be moved radially with respect to the center of the disk, and furthermore, the plurality of detection head members The detection members are provided at a distance so that they do not overlap or touch each other with respect to any movement of the detector, and a signal switching means is provided in the path of the signal processing means and the detection circuit for the signals of the plurality of slave control means, When one of the means group is in a reproducing operation, the main control means controls the signal switching means so that the output of the detection circuit of the slave control means which is in the reproducing operation is applied to the signal processing means. Characteristic information reproduction performance device. (2) A plurality of slave controls are controlled by the main control means such that the other reproduction means performs a high-speed search while one of the reproduction means is performing a reproduction operation, and the high-speed search of the latter is completed by the end of the reproduction operation of the former. An information reproducing performance apparatus according to claim 1, which comprises controlling means. (3) When the operator selects and plays back two or more discontinuous sequences, when the playback operation reaches the branching point of the playback operation, at least the time required for the search after the end of the playback operation, at the next branching point. The main control means is configured to inquire of the operator about the sequence selection to be selected and input the selection, and in response to the input, the main control means is configured to perform a high-speed search for the selected one among other means that are not performing playback. An information reproducing performance device according to claims 1 and 2.