JP2006217521A - Image display device, image/voice reproducing method, and computer-readable program for implementing this method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the image display device which can freely select and reproduce a voice content when reproducing an image content, the image/voice reproducing method, and the computer-readable program for implementing this method. <P>SOLUTION: A rear projector comprises a first and second memory slots, an optical device, a speaker, and a control board that controls these. The control board comprises an image reproducer 51 which reproduces an image content in a first memory card connected with the first memory slot and displays it on the optical device, a voice content searcher 52 which searches whether or not a second memory card in which the voice content is recorded is connected with the second memory slot when reproducing the image content, and a voice reproducer 53 which reproduces the voice content in synchronism with the image content under reproduction and outputs a voice from the speaker when the voice content is searched. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image display device, an image / audio reproduction method executed on the image device, and a computer-readable program for executing the method.

2. Description of the Related Art Conventionally, in the field of image display devices such as liquid crystal televisions, plasma televisions, digital cameras with monitors, and rear projectors, a function for reading and reproducing image content recorded on a recording medium has been put into practical use. The image display apparatus having such a function includes a recording medium connecting unit to which a recording medium is connected.
In recent years, there has been a demand for such image display apparatuses to view image contents while playing music. On the other hand, an image display device capable of reproducing images and sounds in synchronization has been disclosed (for example, see Patent Document 1).

  In the image reproduction system of Patent Document 1, an image display device constituting the image reproduction system reads image content and audio content recorded on a recording medium connected to the image display device, and reproduces these contents. is there. According to such an image reproduction system of Patent Document 1, a viewer can enjoy music as background music (BGM) while viewing image content. Note that in the image reproduction system of Patent Document 1, image content and audio content are recorded on one recording medium.

JP-A-6-284383

As described above, in the image display device described in Patent Document 1, the image content and the audio content are recorded on one recording medium. For this reason, when viewing an image content, the audio content that can be reproduced as BGM is limited to that recorded on the same recording medium as the image content. That is, the music that can be played is limited for the appreciation of the image content.
Furthermore, for example, there is a case where the viewer wants to select the most suitable audio content for a certain image content from various audio contents recorded on a plurality of recording media. In this case, the viewer must first re-record the audio content to be selected on a recording medium on which certain image content is recorded, which makes it difficult to select and reproduce the audio content.
As described above, in the image display device described in Patent Document 1, there is a problem in that it does not always sufficiently respond to a viewer's request to view while playing a variety of music when viewing reproduction of certain image content. is there.

  An object of the present invention is to provide an image display device, an image / audio reproduction method, and a computer-readable program for executing the method, which can freely select and reproduce audio content during reproduction of the image content. It is.

  In order to achieve the above object, an image display device according to the present invention includes a plurality of recording medium connecting means to which a recording medium is connected, and image content recorded on the recording medium connected to any of the recording medium connecting means. An image display device comprising: an image display means for displaying; an audio output means for outputting audio content recorded on a recording medium connected to any one of the recording medium connecting means; and a control means for controlling these. The control means reproduces the image content recorded on the recording medium connected to any one of the recording medium connection means, displays the image on the image display means, and performs other operations during the image content reproduction. An audio content search unit for searching whether or not a recording medium on which audio content is recorded is connected to any one of the recording medium connection means, and the audio content is searched When, in synchronization with the image content in said reproduction reproduces the audio content, it is characterized by comprising an audio playback unit for audio output from the audio output means.

Here, examples of the image display device include a liquid crystal television, a plasma television, a digital camera with a monitor, and a projector. Examples of the recording medium include disk-type recording devices such as CD-R, CD-RW, DVD-RW, and DVD-RAM, a memory card using a flash memory, a USB memory, and an EEPROM. .
Furthermore, examples of the image content include photographic data taken by a digital camera, image data created by a personal computer, and the like. In addition, examples of audio content include music data downloaded from the Internet.

  According to the image display apparatus of the present invention, in a state where the image content recorded on the recording medium is displayed on the screen of the image display means, the operator connects the recording medium on which the audio content is recorded to the recording medium connection means. Then, the audio content is automatically output from the audio output means. According to this, the operator can play the audio content recorded on another recording medium as background music (BGM), for example, while viewing a certain image content recorded on the recording medium. Furthermore, the operator does not need to perform any operation in order to reproduce the audio content in the connected recording medium. Therefore, the image display apparatus can freely select and view the audio content recorded on a plurality of other recording media together with the image content recorded on the recording medium. Therefore, an acoustic effect can be added to the viewing of image content. Furthermore, it is possible to save the trouble of operation.

That is, the image display device includes a plurality of recording medium connecting means, and the control means includes an image reproducing unit, an audio content searching unit, and an audio reproducing unit. In a state where the image content is being played back, the audio content search unit searches whether or not a recording medium on which the audio content is recorded is connected, and when the audio content is searched, the audio content search unit is synchronized with the playback of the image content. Then, the audio reproduction unit reproduces the audio content.
According to this, a plurality of recording media are simultaneously connected to the image display device. Further, the reproduction of the image content is not affected by the connection state of the recording medium on which the audio content is recorded. Further, when the connection of the recording medium on which the audio content is recorded is searched during the image content reproduction, the audio reproduction unit automatically reads and reproduces the audio content.
Therefore, another recording medium can be connected and separated while reproducing the image content in the recording medium. In addition, the operation for reproducing the audio content can be simplified.

In the present invention, a folder for storing each content is set in advance in the recording medium according to a content type including image content and audio content, and the audio content search unit is configured based on a folder structure of the recording medium. It is preferable to search for audio content.
According to the present invention, in the folder structure of the recording medium, the audio content search unit may be searched for a folder for storing audio content. According to this, since the place where the audio content is searched is specified, the search range is reduced, and the time required for the search can be reduced. Therefore, the search for audio content can be performed promptly.

In the present invention, a playback order file indicating the playback order of the audio content recorded in the folder structure is recorded in the root folder of the recording medium in advance, and the audio playback unit performs audio playback based on the order specification file. It is preferable to reproduce the content and output the sound from the sound output means.
According to the present invention, the audio reproduction unit can select and reproduce audio content according to the order indicated in the reproduction order file. According to this, the operator can reproduce a plurality of audio contents recorded on the recording medium in a favorite order. Therefore, the sound effect added to the appreciation of the image content can be further improved by changing the content of the reproduction order file. In addition, since the reproduction order file is recorded in advance, it is not necessary to set the reproduction order every time the audio content is reproduced unless the setting is changed. Therefore, the reproduction of audio content can be further simplified.

In the present invention, it is preferable that the control unit includes an audio content reproduction regulation unit that regulates reproduction of the audio content by the audio reproduction unit when reproduction of the image content by the image reproduction unit is completed.
According to the present invention, since the audio content reproduction restricting unit restricts the reproduction of the audio content when the reproduction of the image content ends, the reproduction of the image content and the reproduction of the audio content can be harmonized.
For example, when a plurality of image contents are displayed continuously (displayed in a slide show) and the audio content is played back in synchronization therewith, the volume of the audio content is gradually reduced as the slide show ends. The audio content can be stopped simultaneously with the end of the slide show. According to this, it is possible to end the slide show of the image content attractively in some cases without a sense of incongruity. That is, the sound effect at the end of the slide show can be devised.

  The present invention can be configured not only as the image display apparatus described above but also as an image / audio reproduction method. That is, the image / audio reproduction method of the present invention includes a plurality of recording medium connecting means connected to a recording medium, and an image display means for displaying image content recorded on the recording medium connected to any of the recording medium connecting means. And audio / video playback executed by an image display device comprising: audio output means for outputting audio content recorded on a recording medium connected to any of the recording medium connection means; and control means for controlling the audio content In the method, the control means reproduces the image content recorded on the recording medium connected to any of the recording medium connection means, and causes the image display means to display the screen, and during the image content reproduction. Whether or not a recording medium on which audio content is recorded is connected to any other recording medium connection means, an audio content search step, When Ceiling is searched, and play the audio content in synchronization with the image content being played back, and executes a voice playback step of audio output from the audio output means.

  According to the present invention, the present invention can be executed on any image display device by configuring the present invention as an image / audio reproduction method. That is, by adopting the image / sound reproduction method of the present invention, it is possible to reproduce the image and sound that can enjoy the operation and effect of the above-described image display device, so that versatility can be expanded.

  The present invention can also be configured as a program that causes the image / audio reproduction method of the invention to be executed on an image display device. That is, the image / audio reproduction program of the present invention includes a plurality of recording medium connecting means to which a recording medium is connected and an image display means for displaying image content recorded on the recording medium connected to any of the recording medium connecting means. A computer-readable program executed by an image display device comprising: audio output means for outputting audio content recorded on a recording medium connected to any of the recording medium connection means; and control means for controlling them It is preferable that the control means execute the image / audio reproduction method.

  According to the present invention, by configuring the present invention as a program, any image display device can be an image display device that can enjoy the above-described operations and effects, so that versatility can be expanded.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted.
[First Embodiment]
As a first embodiment of the present invention, a rear projector is employed in the image display device. The rear projector modulates the light beam emitted from the light source according to input image information to form an optical image, and enlarges and projects the formed optical image on a translucent screen provided in the rear projector. Is.
A rear projector according to the first embodiment, an image / audio reproduction method executed by the rear projector, and a computer-readable program for executing the method will be described with reference to FIGS.

FIG. 1 is a schematic perspective view showing a rear projector 1 and first and second memory cards 21 and 22 according to the first embodiment.
As shown in FIG. 1, the rear projector 1 of the first embodiment includes first and second memory slots 11 and 12 as recording medium connecting means to which memory cards 21 and 22 as recording media are connected, On the screen 13 as image display means for displaying the image content A (FIG. 2) recorded on the first memory card 21 connected to the memory slot 11 and on the second memory card 22 connected to the second memory slot 12 Speaker 4 (FIG. 4) as sound output means for outputting recorded sound content B (FIG. 3), control board 5 (FIG. 4) as control means for controlling these, and these are housed inside A box-shaped housing is provided.

(1) Appearance Configuration As shown in FIG. 1, the rear projector 1 includes a housing, and the front and rear surfaces of the rear projector 1 are exposed to first and second memory slots 11 and 12 having insertion openings, and are exposed to the outside. A screen 13, an operation panel 14 having a plurality of operation buttons, and a speaker sound emission hole 15 having numerous small holes are provided.
First and second memory cards 21 and 22, which will be described later, are inserted into and connected to the first and second memory slots 11 and 12 as recording medium connecting means. The operation panel 14 outputs a control signal corresponding to the operation button to the control board 5 by pressing the operation button. The speaker sound emission hole 15 is formed to face a speaker 4 (FIG. 4), which will be described later, built in the housing, and emits sound output from the speaker 4 to the outside. Although not shown, the rear projector 1 is attached with a remote controller that can perform remote control of drive control. The remote controller is also provided with an operation panel.
In the first embodiment, a first memory card 21 described later is connected to the first slot 11 in advance.

(2) Folder configuration of the first and second memory cards 21 and 22 As shown in FIG. 1, the first and second memory cards 21 and 22 as recording media are card-types on which information can be recorded. For example, an EEPROM or the like is employed. The first and second memory cards 21 and 22 are connected to the rear projector 1 by being inserted into the first and second memory slots 11 and 12. The first and second memory cards 21 and 22 have built-in flash memories that can freely erase and write information.

FIG. 2 is a diagram showing a folder structure of the first memory card 21, and FIG. 3 is a diagram showing a folder structure of the second memory card 22.
Specifically, image content A is recorded on the first memory card 21.
As shown in FIG. 2, the Albums folder 211 and the ALB001 folder 212 and the ALB002 folder 213 stored in the Albums folder 211 are set in the first memory card 21. In the ALB001 folder 212 and ALB002 folder 213, image content 212A and image content 213A are stored in the form of JPG files, respectively. As these image contents A (212A, 213A), for example, photograph data taken by a digital camera, image data created by a personal computer, or the like is employed.

Image content C and audio content B are recorded in the second memory card 22.
As shown in FIG. 3, the second memory card 22 is preset with an Albums folder 221 and a Music folder 223. In the Albums folder 221, the ALB folder 222 is stored as in the Albums folder 211 (FIG. 2) described above, and the image content C is stored in the ALB folder 222.
In the Music folder 223, folders having a folder number at the beginning of the name, such as the 001 folder 224 and the 002 folder 225, are stored. In the 001 folder 224 and the 002 folder 225, audio contents 224B and 225B are stored, respectively.
As the audio content B (224B, 225B), for example, music data downloaded from the Internet is adopted.

(3) Internal Configuration of Rear Projector 1 FIG. 4 is a block diagram showing the internal configuration of the rear projector 1.
As shown in FIG. 4, the rear projector 1 includes an optical device 3 that forms an optical image in accordance with input image information, a speaker 4 that outputs sound in accordance with input audio information, and a rear projector 1. A control board 5 is provided as control means for performing drive control of the projector 1.
Although not shown, the optical device 3 is formed by a light source, a light modulation device such as a liquid crystal panel that modulates a light beam emitted from the light source into image information to form an optical image, and the light modulation device. The optical image projected from the projection lens is projected onto a screen 13 serving as a screen.

(3-1) Configuration of Control Board 5 The control board 5 corresponds to the control means of the present invention, and is electrically connected to a CPU (Central Processing Unit) 50, a ROM (Read Only Memory) 55, and the operation panel 14. Analog-to-digital converter (A / D converter) 141, driver IC 31, and digital-to-analog converter (D / A converter) 41 electrically connected to speaker 4. It is configured as a connected circuit board.
The ROM 55 stores programs processed by the CPU 5 and various data. Specifically, the ROM 55 stores a rear projector control program, an image display viewer activation program (to be described later), an image audio reproduction program, and the like.
The A / D converter 141 converts the control signal input as an analog signal according to the operation of the operation panel 14 into a digital signal, and outputs the digital signal to the CPU 5 via the bus D. This digital signal is processed by the CPU 5 to control the driving of the rear projector 1.
The driver IC 31 performs drive control of the light modulation device constituting the optical device 3 described above.
The D / A converter 41 converts audio information input as a digital signal into an analog signal and outputs the analog signal to the speaker 4.

(3-2) Configuration of CPU 50 FIG. 5 is a block diagram showing a detailed configuration of the CPU 50.
As shown in FIG. 5, the CPU 50 is configured to functionally include an image reproduction unit 51, an audio content search unit 52, an audio reproduction unit 53, and an audio content reproduction restriction unit 54.
The image reproducing unit 51 reproduces the image content A recorded on the first memory card 21 and causes the optical device 3 to display the screen on the screen 13. That is, the image reproduction unit 51 decompresses the image files as the image contents 212A and 213A stored in the Albums folder 211, and generates image data for each frame. Further, a reproduction control signal is generated based on the generated image data, and is output to the driver IC 31 (FIG. 4) together with the image data.

  The audio content search unit 52 connects the second memory card 22 in which the audio content B is recorded to the second memory slot 12 (FIG. 4) while the image reproduction unit 51 reproduces the image content A (212A, 213A). It is determined whether or not it has been done. When the audio contents 224B and 225B are searched, the audio content search unit 52 outputs an audio content detection signal to the audio reproduction unit 53. The drive control by the audio content search unit 52 is performed based on an image / audio reproduction program stored in the ROM 55.

  The audio reproduction unit 53 selects and reproduces the audio content B (224B, 225B) in synchronization with the image content A (212A, 213A) being reproduced, and outputs the audio from the speaker 4. That is, when receiving the audio content detection signal, the audio reproduction unit 53 decompresses the audio files as the audio contents 224B and 225B, and generates a digital audio signal based on the audio file. Further, the audio reproduction unit 53 outputs this digital audio signal to the D / A converter 41. The drive control by the audio reproduction unit 53 is performed based on an image / audio reproduction program stored in the ROM 55.

The audio content reproduction regulation unit 54 regulates the reproduction of the audio content B according to the reproduction state of the image content A.
Here, in the reproduction of the image content A, a plurality of images constituting the image content A may be continuously reproduced (reproduced by a slide show). When the last selected image is displayed in the slide show of the image content A, the audio content playback regulation unit 54 receives a slide show end signal notifying the end of the slide show from the image playback unit 51. Upon receiving the slide show end signal, the audio content reproduction regulation unit 54 causes the audio reproduction unit 53 to gradually reduce the volume of the audio content B being reproduced, and to stop the reproduction of the audio content B simultaneously with the end of the slide show. Output a restriction signal. The drive control by the audio content reproduction regulating unit 54 is performed based on an image / audio reproduction program stored in the ROM 55.

(4) Action of Control Board 5 in First Embodiment FIG. 6 is a view showing the action executed by the control board 5. FIG. 7 is a diagram showing a screen displayed on the screen 13 during image / audio reproduction.
Here, the operation of the control board 5 of the first embodiment will be described based on the flowchart shown in FIG.
In process S <b> 1, the first memory card 21 is connected to the first slot 11 of the rear projector 1.
Here, when the image reproduction unit 51 is reproducing the image content A, the image reproduction viewer 130 is activated on the screen 13 in accordance with the image reproduction viewer activation program described above, as shown in FIG. The image playback viewer 130 is divided into a view area 131 where the image content A is displayed and a menu area 132 where the operation menu is displayed.

In the view area 131, the image reproducing unit 51 lists and displays the image contents 212A and 213A.
In the MENU area 132, selection buttons 133 and 134 are displayed. The selection buttons 133 and 134 are selected and executed when the operator operates the operation panel 14 (operation panel of the remote controller). For example, when the slide show button 133 is selected, the image playback unit 51 plays back the image content A in a slide show. When the end button 134 is selected, the image playback unit 51 stops the playback of the image content A, and the image playback viewer 130 is ended.

The audio content search unit 52 monitors the connection state of the second memory slot 12 and determines whether or not the second memory card 22 is connected (S2). When the second memory card 22 is not connected to the second memory slot 12, the process returns to step S1, and the audio content search unit 52 continues to monitor the connection state of the second memory slot 12.
On the other hand, when the second memory card 22 is connected to the second memory slot 12, the image reproducing unit 51 determines whether or not the image content A recorded on the first memory card 21 is currently being reproduced. (S3). When the image content A is not reproduced, the control board 5 stands by until a control signal input by the operator is detected (S13).

On the other hand, when the image content A is being reproduced, the audio content search unit 52 searches the second memory card 22 and determines whether or not the Music folder 223 is set (S4). When the Music folder 223 is not detected, the audio content search unit 52 finishes the work, and the control board 5 waits until a control signal input by the operator is detected (S13).
On the other hand, when the Music folder 223 is detected, the audio content search unit 52 sets the folder number N = 001 (S5).

Next, the audio content search unit 52 searches the N folder, that is, the 001 folder 224, and determines whether or not the audio content 224B is stored (S6). When the audio content 224B is not stored in the 001 folder 224, the audio content search unit 52 finishes the work, and the control board 5 waits until a control signal input by the operator is detected (S13).
On the other hand, when the audio content 224 </ b> B is stored in the 001 folder 224, the audio content search unit 52 outputs an audio content detection signal to the audio reproduction unit 53. When receiving the audio content detection signal, the audio reproducing unit 53 reproduces the audio content 224B in the 001 folder 224 and outputs the audio from the speaker 4 (S7).
At this time, in the image reproduction viewer 130 displayed on the screen 13, the audio reproduction viewer 135 is activated in the lower part of the MENU area 132 as shown in FIG. The audio playback viewer 135 displays a playback button, a stop button, a next button 135N for shifting to the next music, and the like as selection buttons. When the next button 135N is selected and executed, a NEXT signal is output to the control board 5.

In process S8, the audio content search unit 52 monitors the connection state of the second memory slot 12 and determines whether or not the second memory card 22 is connected. When the second memory card 22 is pulled out from the second memory slot 12, that is, when the second memory card 22 is not connected to the second memory slot 12, the audio playback unit 53 stops the playback of the audio content 224B. (S12). Then, the process returns to step S <b> 2, and the audio content search unit 52 continues to monitor the connection state of the second memory slot 12.
On the other hand, when the second memory card 22 is connected to the second memory slot 12, the audio reproducing unit 53 continues to reproduce the audio content 224B.

In step S9, the audio content reproduction regulation unit 54 determines whether or not a slide show end signal output from the image reproduction unit 51 has been detected (S9). When the slide show end signal is detected, the audio playback unit 53 gradually decreases the volume of the audio content 224B based on the volume control signal output from the audio content playback regulation unit 54, and simultaneously with the end of the slide show, the audio content The reproduction of 224B is stopped (S12). Then, the process returns to step S <b> 2, and the audio content search unit 52 continues to monitor the connection state of the second memory slot 12.
On the other hand, when the slide show end signal is not detected, the audio reproduction unit 53 continues to reproduce the audio content 224B.

In step S10, the audio reproduction unit 53 determines whether or not the NEXT signal described above has been detected. When the NEXT signal is not detected, the reproduction of the audio content 224B is continued, and the process returns to the process S8, and the audio content search unit 52 continues to monitor the connection state of the second memory slot 12.
On the other hand, when the NEXT signal is detected, the audio reproduction unit 53 stops the reproduction of the audio content 224B and performs the calculation of the folder number N = N + 001 (S11). Next, returning to the processing S7, the audio content search unit 52 searches the N folder, that is, the 002 folder 225, and determines whether or not the audio content 225B is recorded.

  According to the first embodiment, in a state where the image content A recorded on the first memory card 21 is displayed on the screen 13, the operator uses the second memory card 22 on which the audio content B is recorded. When connected to the second memory slot 12, the audio content 224B is automatically output from the speaker 4.

According to this, the operator plays the audio content B recorded on the second memory card 22 as, for example, background music (BGM) while viewing the image content A recorded on the first memory card 21. be able to. Furthermore, the operator does not need to perform any operation in order to reproduce the audio content B in the connected second memory card.
Therefore, the rear projector 1 can freely select and view the audio content B recorded on each of the plurality of second memory cards 22 together with the image content A recorded on the first memory card 21. Therefore, an acoustic effect can be added to the viewing of the image content A. Furthermore, it is possible to save the trouble of operation.

  That is, the rear projector 1 includes a plurality of memory slots 11 and 12, and the control board 5 includes an image playback unit 51, an audio content search unit 52, and an audio playback unit 53. However, in a state where the image content A in the first memory card 21 is being reproduced, the audio content search unit 52 searches for whether or not the second memory card 22 on which the audio content B is recorded is connected, When the audio content B is searched, the audio reproduction unit 53 reproduces the audio content B in synchronization with the reproduction of the image content A. According to this, a plurality of memory cards 21 and 22 are simultaneously connected to the rear projector 1. Further, the reproduction of the image content A is not affected by the connection state of the second memory card 22 on which the audio content B is recorded. Further, when the connection of the second memory card 22 in which the audio content B is recorded is searched during the reproduction of the image content A, the audio reproduction unit 53 automatically reads and reproduces the audio content B. Accordingly, the second memory card 22 can be connected and disconnected while reproducing the image content A recorded on the first memory card 21. Further, the operation for reproducing the audio content B can be simplified.

  Further, in the folder structure of the first and second memory cards 21 and 22, the audio content search unit 52 may search for the Music folder 223 storing the audio content B. According to this, since the place where the audio content B is searched is specified, the search range is reduced, and the time required for the search can be reduced. Therefore, the search for the audio content B can be performed promptly.

Furthermore, since the reproduction of the audio content B is regulated by the audio content reproduction regulation unit 54 when the reproduction of the image content A is finished, the reproduction of the image content A and the reproduction of the audio content B can be harmonized. .
For example, when a plurality of image contents A are continuously displayed (displayed in a slide show) and the audio content B is reproduced in synchronization therewith, the volume of the audio content B is increased as the slide show approaches the end. The audio content B can be stopped at the same time as the slide show ends. According to this, the slide show of the image content A can be finished attractively in some cases without a sense of incongruity by the viewer. That is, the sound effect at the end of the slide show can be devised.
In addition, by adopting the image / sound reproduction program, any image display device can be an image display device that can enjoy the above-described functions and effects, so that versatility can be expanded.

[Second Embodiment]
As a second embodiment of the present invention, a rear projector is employed in the image display device, as in the first embodiment.
A rear projector according to the second embodiment, an image / audio reproduction method executed by the rear projector, and a computer-readable program for executing the method will be described with reference to FIGS.
In the first embodiment described above, the audio contents 224B and 225B are reproduced according to the folder number N of the 001 folder 224 and the 002 folder 225. On the other hand, the second embodiment of the present invention is different in that the operator can freely set the playback order of the audio contents 224B and 225B.

(5) Folder Configuration of Second Memory Card 62 FIG. 8 is a diagram showing a folder configuration of the second memory card 62 according to the second embodiment.
As shown in FIG. 8, image content C, audio content B, and a reproduction order file indicating the reproduction order of audio content B are recorded in the second memory card 62 of the second embodiment.
The audio content B (224B, 225B) is stored in the 001 folder 224 and the 002 folder 225 set in the Music folder 223, as in the first embodiment.

(6) Structure of Playback Order File FIG. 9 is a diagram showing the contents of the playback order file.
The reproduction order file is a txt file having a specific file name. Here, the specific file name is Music. In the Music file 7 as the reproduction order file, reproduction order data 71 for specifying the reproduction order of the 001 folder 224 and the 002 folder 225 is recorded as shown in FIG.
The reproduction order data 71 includes an order number 72 such as [1], [2],..., And an address 73 indicating the location of the folders 224 and 225 in the Music folder 222 corresponding to each order number 72. Is recorded. In the Music file 7 shown in FIG. 9, it is specified that the audio content 225B in the 002 folder 225 is played first, and the audio content 224B in the 001 folder 224 is played back second.

(7) Operation of Control Board 5 in Second Embodiment FIG. 10 is a diagram illustrating an operation performed by the control board 5 in the second embodiment.
Here, the operation of the control board 5 in the second embodiment will be described based on the flowchart shown in FIG.
In 2nd Embodiment, the effect | action of the control board 5 in process S1-process S3, process S13 is the same as the effect | action in the process S1-process S3 of 1st Embodiment, and process S13 (FIG. 6).
In process SA4, the audio content search unit 52 searches the second memory card 22 and determines whether or not the Music file 7 is recorded. When the Music file 7 is not detected, the audio content search unit 52 finishes the work, and the control board 5 waits until a control signal input by the operator is detected (S13).

  On the other hand, when the Music file is detected, the audio content search unit 52 reads the reproduction order data 71 of the Music file 7, searches the 001 folder 224 and 002 folder 225 according to the address 73, and stores them in these folders 224 and 225. It is determined whether or not the audio contents 224B and 225B are stored (SA5). When the audio contents 224B and 225B are not stored in the 001 folder 224 and the 002 folder 225, the audio content search unit 52 finishes the work, and the control board 5 detects until a control signal input by the operator is detected. Wait (S13).

On the other hand, when the audio contents 224B and 225B are stored in the 001 folder 224 and the 002 folder 225, the audio content search unit 52 outputs an audio content detection signal to the audio reproduction unit 53. When receiving the audio content detection signal, the audio reproducing unit 53 reads the reproduction order data 71 of the Music file 7 and selects and reproduces the audio content 225B and the audio content 224B according to the designated sequence number 72.
In 2nd Embodiment, the effect | action of the control board 5 in process S8, process S9, and process S12 is the same as the effect | action in process S8, process S9, and process S12 (FIG. 6) of 1st Embodiment.

  According to the second embodiment, the audio reproduction unit 53 selects and reproduces the audio content 225B and the audio content 224B in this order according to the reproduction order shown in the Music file 7. According to this, the operator can reproduce the plurality of audio contents B recorded on the second memory card 22 in a favorite order. Therefore, the sound effect added to the viewing of the image content A can be further improved by changing the content of the Music file 7. In addition, since the Music file 7 is recorded in advance, it is not necessary to set the reproduction order every time the audio content B is reproduced unless the setting is changed. Therefore, the reproduction of the audio content B can be further simplified.

(8) Modification of the above embodiment Although the best configuration for carrying out the present invention has been disclosed in the above description, the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Those skilled in the art can make various modifications in terms of materials, quantity, and other detailed configurations, and do not limit the present invention. Therefore, some or all of the limitations on shapes, materials, etc. The description by the name of the member which removed this limitation is included in the present invention.

In the embodiment, the rear projector 1 is employed as the image display device. However, in the present invention, for example, a liquid crystal television, a plasma television, a digital camera with a monitor, or the like may be employed.
In the above-described embodiment, the memory cards 21, 22, and 62 are used as the recording medium. However, in the present invention, any one corresponding to the image display device may be used. For example, a CD-RW, a DVD-RW, a DVD-RAM, or the like. A disk-type storage medium or the like may be employed.

  In the above embodiment, the second memory cards 22 and 62 are connected to the rear projector 1 after the first memory card 21 at the operation start stage. However, in the present invention, the second memory cards 22 and 62 are The rear projector 1 may be connected before the first memory card 21. In this case, when the audio reproduction unit 53 reproduces the image content A recorded on the first memory card, the audio content search unit 52 searches for the connection status of the second memory slot 12 to search for the second memory card 22, When the connection of 62 is confirmed, an audio content detection signal is output.

  In the present invention, reproduction of the image content A and the audio content B may be devised depending on the situation. For example, in the above embodiment, the playback of the audio content B is stopped simultaneously with the end of the slide show of the image content A. However, the present invention is not limited to this. The reproduction of B may be continued.

  In the embodiment, the audio reproduction unit 53 starts reproduction of the audio content B at the same time as receiving the audio content detection signal. However, in the present invention, the audio content is received after a predetermined time from the reception of the audio content detection signal. B playback may be started. According to such a device, as described above, the second memory cards 22 and 62 are connected to the rear projector 1 before the first memory card 22, and then the first memory card 21 is connected. If the slide show of the image content A is started, the reproduction of the audio content B can be started after a predetermined time from the start of the slide show. In other words, since BGM can be played from a specific point in the slide show, the acoustic effect by BGM can be further enhanced.

  The present invention can be used for liquid crystal televisions, plasma televisions, digital cameras with monitors, image display devices such as rear projectors, image / audio reproduction methods, and computer-readable programs that execute the methods.

1 is a schematic perspective view showing a rear projector according to a first embodiment of the invention. The figure which shows the folder structure of the 1st memory card based on the said embodiment. The figure which shows the folder structure of the 2nd memory card based on the said embodiment. The block diagram which shows the internal structure of the rear projector which concerns on the said embodiment. The block diagram which shows the structure of CPU which concerns on the said embodiment. The flowchart which shows the effect | action of the control board which concerns on the said embodiment. The figure which shows the screen displayed on a screen during image sound reproduction. The figure which shows the folder structure of the 2nd memory card based on 2nd Embodiment of this invention. The figure which shows the reproduction | regeneration order file which concerns on the said embodiment. The flowchart which shows the effect | action of the control board which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Rear projector (image display apparatus), 3 ... Optical apparatus (image display means), 4 ... Speaker (audio | voice output means), 5 ... Control board (control means), 7 ... Playback order file, 11 ... 1st memory slot (Recording medium connecting means), 12 ... second memory slot (recording medium connecting means), 13 ... screen, 21 ... first memory card (recording medium), 22, 62 ... second memory card (recording medium), 51 ... Image reproduction unit 52... Audio content search unit 53. Audio reproduction unit 54. Audio content reproduction restriction unit 211 221 Album folder 223 Music folder (folder) A 212 A 213 A Image content B , 224B, 225B ... Audio content

Claims (6)

A plurality of recording medium connecting means to which the recording medium is connected, an image display means for displaying image content recorded on the recording medium connected to any of the recording medium connecting means, and a connection to any of the recording medium connecting means An image display device comprising: audio output means for outputting audio content recorded on the recorded recording medium, and control means for controlling them;
The control means includes
An image reproducing unit that reproduces image content recorded on a recording medium connected to any one of the recording medium connecting means, and causes the image display means to display a screen;
An audio content search unit for searching whether or not the recording medium on which the audio content is recorded is connected to any other recording medium connection means during the reproduction of the image content;
An image display device comprising: an audio reproduction unit that, when audio content is searched, reproduces the audio content in synchronization with the image content being reproduced and outputs the audio content from the audio output means. The image display device according to claim 1,
In the recording medium, a folder for storing each content is set in advance according to a content type including image content and audio content,
The audio content search unit searches for the audio content based on a folder structure of the recording medium. The image display device according to claim 2,
In the root folder of the recording medium, a playback order file indicating the playback order of the audio content recorded in the folder structure is recorded in advance,
The image reproduction apparatus, wherein the audio reproduction unit reproduces audio content based on the order designation file and outputs the audio from the audio output unit. In the image display device according to any one of claims 1 to 3,
The image display apparatus according to claim 1, wherein the control unit includes an audio content reproduction regulation unit that regulates reproduction of the audio content by the audio reproduction unit when reproduction of the image content by the image reproduction unit is completed. A plurality of recording medium connecting means to which the recording medium is connected, an image display means for displaying image content recorded on the recording medium connected to any of the recording medium connecting means, and a connection to any of the recording medium connecting means An audio / video reproduction method executed by an image display device comprising audio output means for outputting audio content recorded on a recorded recording medium and control means for controlling the audio content,
The control means includes
An image reproduction step of reproducing the image content recorded on the recording medium connected to any one of the recording medium connection means and causing the image display means to display a screen;
During the reproduction of the image content, an audio content search step for determining whether or not the recording medium on which the audio content is recorded is connected to any other recording medium connection means;
An audio / video playback method, comprising: executing an audio reproduction step of reproducing audio content in synchronization with the image content being reproduced and outputting the audio from the audio output means when audio content is searched. A plurality of recording medium connecting means to which the recording medium is connected, an image display means for displaying image content recorded on the recording medium connected to any of the recording medium connecting means, and a connection to any of the recording medium connecting means A computer-readable program executed by an image display device including audio output means for outputting audio content recorded on the recorded recording medium and control means for controlling the audio content;
A computer-readable program for causing the control means to execute the image / audio reproduction method according to claim 5.

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