JPH0278054A - Image and sound reproducing device - Google Patents

Abstract

PURPOSE:To enable the continuous reproducing in case of resuming the previous reproducing after reproducing other part on the same recording medium while the previous reproducing is given pause for a while by the user by holding the contents of nonvolatile memory and performing the reproducing from the pausing spot. CONSTITUTION:When the user presses a switch of 'pause in reproducing' in a switch group 11, the rewrite of executing step numbers on the nonvolatile memory 3 is given pause by a CPU 1 so as to be on standby until either switch of 'resumption of reproducing' of 'new reproducing' is pressed. Now, when the user presses the switch of 'resumption of reproducing' in the switch group 11 again after performing the reproducing of other part on the same recording medium, the executing step numbers are read out of the memory 3 and a program showing reproducing sequence is carried out with the step numbers by the CPU 1. Consequently, when the medium given pause in reproducing is loaded again, the reproducing can automatically be resumed from the pausing spot in the reproducing. By this method, the automatic reproducing can be carried out without necessity of reproducing it from the outset again at the beginning step.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interactive image and audio reproducing apparatus in which a user selects and reproduces recorded images, audio, etc. in an interactive manner.

[Conventional technology]

For example, as a conventional interactive image and audio playback device,
There is an interactive video playback device described in Japanese Patent No.-86590. In this system, a video disc playback device and a computer are connected through an interface circuit, and the video disc playback device is controlled by the computer. In other words, when the user inputs an item that is difficult to play back from the computer's keyboard, the computer calculates the address where the item is recorded on the video disc, the number of screen frames for the item, and starts playing the address. An instructing signal is output to the video disc playback device.The video disc playback device receives this signal and starts playback from the address on the video disc.

Then, the converter counts signals indicating image frame divisions included in the playback signal from the video disk device via an extraction circuit, and when the count reaches a predetermined number of screen frames, outputs a signal instructing to stop playback. The data is output to the video disc device, and the video disc device receives this and stops playback. According to this device, a user can automatically reproduce an item he or she wants to view by simply inputting an instruction to the converter. In other words, the user can proceed with learning, searching, etc. while selecting the items he/she wants to view by interacting with the computer. If you want to resume the original learning, searching, etc. after interrupting the playback by turning off the power or playing another disc, the information about the interrupted point is not saved, so you can resume the original learning, searching, etc. It is not possible to immediately resume from where you left off. When a Tsumaji user restarts learning, searching, etc., the image and audio from the first stage of learning and searching are first played, and then the screen and audio of the point where the user wants to resume learning, searching, etc. are played. Appropriate key human resources must be used again to ensure that In other words, the above-mentioned conventional technology does not take into account the user's request to immediately resume learning, searching, etc. from the point where it was interrupted last time, and there is a problem that it is not easy to use.

An object of the present invention is to provide an interactive image and audio playback device in which a computer controls the image and audio playback device and automatically plays back images and audio of items selected by the user in an interactive manner. Provides a function that allows playback to be interrupted in the middle of a series of playback processes, and when the power is turned off to play another disc and then resume playback of the original disc, the playback can be automatically resumed from the point where it was interrupted last time. It's about doing.

[Means to solve the problem]

The above purpose is to first provide a non-volatile memory in the combinator that controls the image and audio playback device that can be read and written by the CPU (computing unit) of the computer and retains its contents even when the computer's power is turned off. . Two switches for instructing the image and audio reproducing apparatus to interrupt and resume reproduction, and an interface circuit for inputting a signal indicating that the switches have been pressed to the CPU are provided. Furthermore, the computer program indicating the procedure for reproducing predetermined images, sounds, etc. based on instructions from the user is assigned a number indicating each reproduction step. This is achieved by the above means.

[Effect]

Images such as optical disks are stored on the non-volatile memory.

Contents of recording media such as audio, and the above images,
Record the program execution step number indicating the procedure for reproducing audio etc. When the image, audio, etc. recording medium is loaded into the image/audio reproducing device, the CPU inputs the contents of the header of the recording medium and records it on the nonvolatile memory.

When the user starts playing images, audio, etc., the CPU executes a program that shows the steps for playing the images, audio, etc.
Each time a step is executed, the execution step number on the nonvolatile memory is rewritten to the currently executed step number. When the user presses the above-mentioned switch to instruct playback interruption to interrupt learning, searching, etc., a signal indicating playback interruption is sent to the corresponding CPU.
is input. Thereafter, the CPU does not write into the nonvolatile memory until a signal indicating restart of reproduction is input. In other words, the contents of the nonvolatile memory are held. The recording medium for images, sounds, etc. is now the image.

When loaded into the audio playback device, the CPU scans the header contents of the recording medium and compares it with the header contents of the previously loaded e-medium recorded on the non-volatile memory. If the contents match, it is regarded as the same recording medium as the previous one. When the user presses the switch indicating resumption of playback in order to resume learning, searching, etc. from the point where it was interrupted last time, a signal indicating resumption of playback is input to the CPU, and the CPU reads the execution step number in the memory where the failure occurred. Enter the image above.

Execution of a program indicating a step 1111 for reproducing audio or the like is started from the execution step number. If the content of the header of the recording medium loaded in the new t differs from the content of the header loaded last time, it is regarded as a different recording medium from the previous time, and the CPU does not write to the non-volatile memory, and the above playback is interrupted. It also does not accept any signal indicating that the switch indicating restart of playback has been pressed.

When the computer or the image/audio reproducing device is turned off and then turned on again while the user is playing back images, audio, etc., the CPU reads the header of the recording medium loaded in the image/audio reproducing device. input and compare it with the contents of the header recorded on the non-volatile memory. Then, as in the case where a new recording medium is loaded, an instruction to resume playback is accepted from the same recording medium tC as the previous one, but is not accepted if it is a different recording medium.

If the user temporarily suspends learning of meritoriousness or testing, plays other images, sounds, etc. of the same Be recording medium, and then resumes playback from the point where it was interrupted at the above-mentioned time, the playback must also be interrupted. After the instructing switch is not pressed, the contents of the non-volatile memory are retained without being rewritten, and when the switch to instruct playback is pressed, the contents of the non-volatile memory are input and the kneading starts again. Resumes playback of images, audio, etc. As described above, playback can be automatically resumed from the point where the user has instructed playback to be interrupted.

〔Example〕

An embodiment of the interactive image and audio reproducing apparatus according to the present invention will be described below with reference to FIG. FIG. 1 is a schematic diagram showing an embodiment of an interactive image and audio reproducing apparatus according to the present invention. ('P U 1 is a computer arithmetic unit,
It is a general-purpose microbrothée, etc. Read-only memory 2
is for recording data in advance and inputting the data as necessary during calculation by the CPU 1, and is a general-purpose ROM.
etc.

The nonvolatile memory 3 is a rewritable memory whose recorded contents do not disappear even if the power is turned off. This may be a general-purpose FtAM that is constantly supplied with a stain source by the battery 4. The rewritable memory 5 is a memory in which data can be rewritten by the CPU 1, such as a general-purpose RAM or the like.

The image processor 6 has a function of decoding the image data of the compression-encoded digital signal, converting it into an analog signal that can be displayed on the display device 7, and outputting the analog signal.

The details of this structure are not directly related to the present invention, so a description thereof will be omitted. The display device 7 inputs an analog image signal and displays an image, and is a CRT display, a liquid crystal display, or the like. The audio processor 8 has a function of inputting a compression-encoded digital audio signal, decoding it, and converting it into an analog audio signal. Since the details of this structure are not directly related to the present invention, their explanation will be omitted.

The speaker 9 converts the analog audio signal output by the audio processor 8 into audio. System bus 10 is C
It is a collection of signal lines for inputting and outputting signals between the PU 1 and each memory and interface circuit. The above-mentioned signals include data signals, address signals, various control signals, and the like. The switch information group 11 is a switch v for the user to perform all playback-related instructions such as suspending playback, restarting playback, new playback, and resetting.
It is a group of pots. The switch interface circuit 12 sends signals indicating the ON/OFF states of these switches to the CPU.
This is a conversion circuit for inputting to 1. Coordinate input device 15
is a device that outputs the coordinates specified by the user on the coordinate detection surface as a digital signal.
Mouse etc.

Therefore, by using a transparent coordinate input device 15 and superimposing it on the screen of the display device 7, the user can directly specify the position on the screen. The coordinate input device interface circuit 14 inputs the output signal of the coordinate input device 15 to the CPU 1.
For example, B S
-252e interface circuit, etc. The image/audio reproducing device 15 reproduces images, audio, etc. from a recording medium based on external instruction signals, and is a CD-ROM drive or the like, and the corresponding recording medium is, for example, a CD-ROM drive.
ROM etc. The playback device interface circuit 16 is an interface between the image and audio playback device 15 and the CPU 1.
-7 circuit.

Thereafter, learning is performed by loading the recording medium that the user wants to play into the image/audio playback device 15 and playing it back.

Perform a search or the like, interrupt the use midway through, replace the recording medium on the image/audio reproducing device 15 with another recording medium, perform this reproduction, and replace it again with the original recording medium. CP when reproducing the recording medium and restarting the use of learning, searching, etc. that was interrupted last time from the point t where it was interrupted last time
The calculation operation of U1 will be explained with reference to the flowchart of FIG. When the user turns on the power to the image/audio reproducing device 16 and loads a recording medium, the CPU 1 controls the image/audio reproducing device fIt15 to read the header of the recording medium into the rewritable memory 5. A rewritable memory stores a program recorded on the recording medium that shows the procedure for playing back images and sounds, that is, a program that shows the steps for playing back which images, sounds, etc. should be given by what kind of instructions from the user. 5 (above 5-1). Then, the CPU 1 compares the contents of the header of the currently loaded recording medium read into the rewritable memory 5 with the contents of the header of the previously loaded mental recording medium recorded in the nonvolatile memory 6. If the two are the same, the currently loaded recording medium is the same as the previously loaded recording medium, and if they are different, it is considered a different recording medium from the previous one (see 5-2 above).
. Here, as a specific example of the content of the header of a recording medium, the header of a disc according to the interim standard of CD-I (Compact Disc Interactive Media) announced by Sony Corporation and Philivbus of the Netherlands in May 1986. Part of the content is shown in Figure 3. The header is 204
It consists of 8 bytes, and those related to the recorded contents on the disk are shown in FIG. Therefore, by multiplying all or a suitable part of these and comparing them, it is possible to determine whether or not the discs have the same content. This will be explained with reference to FIG. 2 again.

If the contents of the headers of the currently loaded recording medium and the previously loaded recording medium match, the CPU 1 selects the switch 9 of "Resume playback" or "New playback" in the switch group 11.
Wait until the key is pressed (5-3 above). If the "resume playback" switch is pressed, the user resumes the use that was interrupted last time (8-a) The CPU 1 executes the playback that was recorded in the non-volatile memory 5 at the point of last interruption. The step number of the program indicating the reproduced procedure is read (S-5), and execution of the program indicating the reproduction procedure is started from the step (8-6). Then, each time the program indicating the playback procedure is executed one step, the number of the step is recorded on the nonvolatile memory s (S-8).
. If the user presses the "New Play" switch,
The CPU 1 executes the program indicating the above playback procedure from the first step 9 (5-7) to check if there is any interruption in the previous use, or to cancel it even if there is, and similarly stores the number of the executed script in the non-volatile memory s. (S-8). An example of a program showing the reproduction procedure will now be described with reference to FIG. 4. Each step in a program generally consists of multiple statements. When the CPU 1 executes step number 121 (described below), the CPU 1 first rewrites the execution step number on the non-volatile memory 5 to the step number 121 to be executed from now on. Execute statements sequentially.

That is, the image data recorded on the recording medium as the file name P200.10 is read, transferred to the display process 96, and displayed on the display device 7. File name L4
The image data of 2011 is also displayed on the display device 7 in exactly the same manner. Then, the file name A 105 is written on the recording medium.
The audio data recorded as 01 is read, transferred to the audio processor 8, and the audio is produced by the speaker 9. Next, the CPU 1 displays the figure of the pattern 112 at the coordinates (501) on the display device 7.

210) is displayed at the center position, and this is set as menu number 1. In exactly the same way, the figure of pattern I32 is displayed at a position centered on the coordinates (1o1.510). The data for each of the figures described above exists on the rewritable memory 5 as part of a program indicating the reproduction procedure. Next, the CPU
1, the user instructs and inputs fixed coordinate values using the coordinate input device 15. Here, the coordinate input device 15 is mounted on the screen of the display device 7 and is a friendly optical touch panel or the like, and when the user specifies a certain position on the screen by touching it with a finger, the coordinate input device 15 holds the coordinates of the position and outputs the coordinates. It is assumed that the coordinate value is output in response to a request signal. The coordinates specified by the user are the center coordinates of the figure 112 displayed on the screen (501).

210), the CPU 1 assumes that menu S-1 has been selected and then executes step number 122 of the program indicating the playback procedure. Similarly, if the user specifies the coordinates near figure I52 on the screen, it is assumed that menu 2 has been selected, and the next step is step number 13.
Execute 1. The coordinates specified by the user are the figure I 12.
If the value is other than I32, the coordinate values are input again using the coordinate input device 15.

The explanation will be given by returning to FIG. 2 again. When the user presses the "Playback Interruption" switch in the Quiet 9 group 11 to interrupt the learning, search, etc. that the user is currently doing (S-9), the CPU 1 stores the execution step number in the non-volatile memory 3. The rewriting is canceled (S-16). In the following cases, if the power of the multi-image audio playback device 15 is cut off and the user intentionally removes the recording medium to stop using it before pressing the "stop playback" switch, Reproduction is inevitably stopped (see 8-1o above).

Even if the header contents of the newly loaded next recording medium and the previously loaded recording medium are different (S-2) the CPU
1: ``Resuming playback'' 1: waits until the ``new playback'' switch is pressed (S-11).

If the "New Play" switch is pressed, the CPU will assume that there was no interruption in the previous usage, or that it was canceled.
1 reads the header of the currently loaded recording medium onto the nonvolatile memory IJ 5 (S-15), and executes a program indicating the playback procedure from the first status tab 8-7).
Every time one step is executed, the execution step number on the non-volatile memory 5 is rewritten to the currently executed step number (S
-S).

When the "resume playback" switch is pressed, the CPU 1 assumes that the user previously used a different recording medium and interrupted the playback process, and the CPU 1 executes a program indicating the playback procedure from the first status tab. The execution step number on the memory 5 is not rewritten (above S-14).

Next, with reference to the flowchart in FIG. 5, a description will be given of the constant diameter at which the user interrupts usage and plays another part of the same recording medium, and the operation of the CPU 1 when the user resumes usage from the interrupted location. do. The user presses the playback interrupt switch, the CPU 1 stops rewriting the execution step number on the non-volatile memory 3, and the CPU 1 stops rewriting the execution step number on the non-volatile memory 3 (up to (8-16) in Figure 2), and the user restarts the image/audio playback device. 15 to reproduce another portion on the same recording medium <1-1). When the user presses the playback restart switch (Ct-2), the CPU reads the execution step number on the non-volatile memory 3 (second
(S-5) in the figure), the program indicating the playback procedure is executed from the step number ((8-6) in Figure 2).

Note that the program showing the operation of the CPUI described above is recorded on a recording medium, and is read from the recording medium onto the rewritable memory 5 when the recording medium is loaded into the image/audio reproduction device 15. A program for the CPU 1 to perform the above reading is recorded on the read-only memory 2.

In the above embodiment, a method has been described in which the execution step number on the non-volatile memory 3 is rewritten to the number of the currently executed step every time the program indicating the playback procedure is executed in one step, except when playback is interrupted. According to this method, the current step number to be executed is always recorded, so even if the power is inadvertently turned off, the execution step number at that point is retained, so when the power is turned on again, the previous step number is retained. It has been disconnected and regenerated, and can be restarted from nine points. In other words, playback can be resumed from the point where playback was interrupted due to the previous power cut. Instead of constantly rewriting the execution step number on the non-volatile memory 5, the user presses the "Play Interrupt" switch and rewrites the execution step number on the non-volatile memory 3 only at the 9th point in time. By rewriting the number of the strip, it is possible to interrupt playback from a friend's playback and resume playback from the point where the playback was interrupted, except for playback interruption due to the above-mentioned inadvertent disconnection of the power supply. According to this method, the calculation l· of the CPU t can be reduced by not constantly rewriting the execution step number on the nonvolatile memory 5. Also"
Of course, instead of using a switch, a predetermined figure may be displayed on the screen of the display device 7 and the user inputs an instruction for the display position of the figure to perform the operations such as "suspending playback" and "resuming playback." . For switches such as "Playback Interrupt" and "Playback Resume", the switches should be internally illuminated, and an indicator light should be installed near the switch, and these lights should be turned on to indicate whether the switch is enabled or disabled. Mayu can also purify.

〔Effect of the invention〕

As explained above, according to the present invention, in the interactive image and audio playback device, information about the next part is held in the non-volatile memory when the user interrupts the playback. Even if the constant diameter power supply is cut off or another recording medium is used for reproduction, if the recording medium on which reproduction was interrupted is loaded again, reproduction can be automatically resumed from the point where reproduction was interrupted last time. Therefore, when interrupting playback and restarting playback of the same recording medium, there is no need to restart the playback from the beginning, unlike in conventional interactive image and audio playback devices. Furthermore, according to the present invention, when the program indicating the playback procedure is executed one step, the number of the step is sequentially recorded on the non-volatile memory, so even if the power is accidentally cut off during playback, the power can be turned off. If the power is turned on again, it is possible to automatically resume the playback at the C playback points at the time the power was turned off.

[Brief explanation of the drawing]

FIG. 1 is a production diagram showing an example of an interactive image and audio playback device according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the CPU 1, and FIG. 5 is an explanation showing an example of a header of a recording medium. FIG. 4 is an explanatory diagram showing an example of a program showing a reproduction procedure, and FIG. 5 is a flowchart showing the operation of the CPU 1. 1...CPU. 2... Read-only memory, 5... Non-volatile memory, 4... Battery, 5... Rewritable memory, 6... Image processor 7... Display device, 8... Audio processor, -vsu, 9... Speaker, 10... System bus, 11... Swipe group - 13... Coordinate input device, 15... Image and audio reproduction device. 1 Figure 2 (n) Figure 2 (2/2) Figure 3 (byte number) (k+"M) 萬+ 圓 (input from Watoma reproduction (stacked L thick) rc6N II2 1 C3o1, 21o) and LD and QδT5 T7 Leather 4 Figure (%) DISP L4-2031 ALJ [lI5 A l0tOf 123: j31: DISP P2O04D f) ISF L420 Otsu I AUF) h) A 10 Otsu 02 132: Leaf 5 figure

Claims (1)

[Claims] 1. An image and audio playback device that plays back images and sounds recorded on a recording medium, and a manual startup that executes predetermined image and audio playback procedures and controls the playback operation of the image and audio playback device. In an interactive image and audio playback device, the interactive image and sound playback device includes a memory that records the image and sound playback procedures and can be referred to by the control device, and a non-volatile memory whose contents can be rewritten by the control device. and at least five types of switches capable of manually instructing new playback, interruption of playback, and restart of playback on the control device, and instructing the new playback after loading the recording medium into the image/audio playback device. If there is, the contents of the header of the recording medium are read into the non-volatile memory, and if there is an instruction to interrupt the above playback while the image/audio is being played, information on the stage of the image/audio playback procedure being executed at this point is read. It is rewritten and recorded on the non-volatile memory as information indicating the point where the playback was interrupted, and if there is an instruction to restart the playback, the contents of the header of the recording medium loaded in the image/audio playback device are recorded on the non-volatile memory. Compare the contents of the header of the previously loaded recording medium that has been loaded, and if the headers match, input information indicating the above-mentioned interrupted location on the nonvolatile memory, and play the recording medium from the interrupted location. An image and audio reproducing apparatus characterized in that, if the two headers do not match, the above-described image and audio reproducing procedure for the recording medium is executed from the initial stage.