JP2002247477A - Audio/visual device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy-saving audio/visual(AV) device. SOLUTION: The AV device has a 1st switch that outputs a pulsive operation signal and a 2nd switch that is closed/opened interlocking with a cover of a display section. When the cover is closed to turn off the 2nd switch and a display control section and an electronic volume are deactivated and if the cover is opened as shown in (a) and the 2nd switch is closed, the display control section and the electronic volume are activated to display an image on the display section, an acoustic signal is outputted to a jack, and the display section and the jack are activated (b, c in Figure 1). When the 2nd switch, the display section, and the jack are activated and the cover is closed resulting in turning off the 2nd switch as shown in (q), only the display section is turned off and the jack maintains the on-state. When the 2nd switch and the display section are turned off and the jack is activated and the cover is opened as shown in (w) resulting in closing the 2nd switch, the display section is activated while the jack maintains the on-state as shown in (x).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to audio-visual equipment (AV equipment), and more particularly to an audio-visual equipment having an openable and closable cover for covering a screen.

[0002]

2. Description of the Related Art Conventionally, for example, in a portable audiovisual (AV) device having both a television (television) reception function and an FM radio reception function, generally, output of video (image) and output of audio are performed. Synchronously, when the power is turned on, the image and the sound are output simultaneously, and when the power is turned off, the image and the sound are simultaneously turned off. Some portable AV devices include a lid that can be opened and closed so as to cover the display unit in order to protect the display unit such as a liquid crystal screen. Even in such an AV device, the image and the sound are turned on and off in synchronization with each other. For example, even when the cover is closed to cover the display to listen to the FM broadcast, the display is turned on. It has become.

[0003]

As described above, in the conventional AV equipment, the display unit consuming a large amount of power is kept on even if the AV equipment is used only for listening to music or radio. It is very uneconomical and requires frequent replacement and charging of the loaded battery.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and has as its object to save energy. Another object of the present invention is to display an image only when the user wants to view the image.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the fact that when the display unit is covered with a lid, it means that there is no intention to view an image such as a video.
To achieve the above object, an audiovisual device according to the present invention includes a display unit that displays an image under the control of a display control unit, and an audio signal extraction unit that receives an audio signal from an audio signal output unit. A first switch for outputting an operation signal, a second switch that is turned on / off in conjunction with opening and closing of a lid that covers the display unit, and a second switch that is connected to the second switch and the first switch. The display control unit and the sound signal output unit are controlled based on the output signal, and the lid is closed to close the second control unit.
And a control unit that turns off the output of the display control unit and turns off the display unit when the switch is turned off.

According to the present invention thus configured, when the cover is closed to cover the display section, the display section is automatically turned off, so that useless power consumption can be avoided and energy saving can be achieved. . Then, when the user wants to view the image, the user only has to open the lid to expose the display unit, and the image can be displayed on the display unit only when the user wants to view the image. Therefore, the display portion is turned off when listening to the radio or the like, so that the power consumption of the attached battery can be significantly reduced, and the life of the battery can be greatly extended.

The control unit receives an operation signal from the first switch when the lid is open and the second switch is on and the outputs of the display control unit and the acoustic signal output unit are on. Sometimes, the output of the display control unit and the output of the acoustic signal output unit can be configured to be turned off. Further, the control unit is configured to open the lid and open the second switch, to turn off the output of the display control unit and the sound signal output unit, and to input an operation signal from the first switch. Alternatively, the output of the display control unit and the output of the acoustic signal output unit may be turned on. Further, the control unit opens the lid and turns on the second switch when the lid is closed and the second switch is off and the outputs of the display control unit and the acoustic signal output unit are off. Sometimes, the output of the display control unit and the output of the acoustic signal output unit can be turned on. That is, the lid may be opened when the user wants to view the image.

When the lid is open and the second switch is on, the output of the display control unit is off, and the output of the acoustic signal output unit is on, the control unit outputs a signal from the first switch. When an operation signal is input, the output of the display control unit may be turned on while the output of the acoustic signal output unit is kept on. By operating the first switch when the user wants to view the image, the image is displayed on the display unit.

The control unit receives an operation signal from the first switch when the lid is closed and the second switch is off and the output of the display control unit and the sound signal output unit is off. In some cases, the output of the audio signal output unit may be turned on while the output of the display control unit is kept off. When the user wants to listen to music, radio, or the like without needing to view an image, the user can listen to music or radio by operating the first switch. Moreover, since no image is displayed, energy saving can be achieved.

[0010] Further, the control unit is configured to output the second signal when the cover is closed and the second switch is off, the output of the display control unit is off, and the output with the acoustic signal output unit is on. When an operation signal from one switch is input, the output of the acoustic signal output unit may be turned off while the output of the display unit is kept off. The control unit may be configured to open the lid when the lid is closed and the second switch is in an off state, the output of the display control unit is off, and the output with the audio signal output unit is on. Thus, when the second switch is turned on, the output of the display control unit can be turned on while the output of the audio signal output unit is kept on. That is, for example, during reproduction of a CD or the like, not only the music but also the image can be viewed by opening the lid when the user wants to view the image.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the audio-visual equipment according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 is an explanatory diagram of an audiovisual device according to the present invention, where (1) is a perspective view and (2)
FIG. 3 is a front view of a state where a lid is opened.

In FIG. 2, a portable AV device 10 has a cover 14 which can be opened and closed on the front surface of a main body 12. Body 1
2 is formed in the shape of a rectangular parallelepiped box in the case of the embodiment, and has a volume increase button 18a and a volume decrease button 18b for adjusting the volume on the upper surface as shown in FIG. It is provided. A first power switch (first switch) 20, which outputs a pulse-like operation signal when operated, a menu switch 22 and a jog switch 24, which will be described later, are arranged on the side surface of the main body 12 in a row in the vertical direction. It is provided in.

The jog switch 24 is a selection switch. As will be described later in detail, an up (Up) function for moving a cursor displayed on the display unit upward and a down (Down) function for moving the cursor downward. It has a function and an Enter function for selecting or executing a function corresponding to the item at the position where the cursor is placed. The function of the AV device 10 is selected, the TV channel is selected, and the FM radio is selected. Used when doing things like: Below the jog switch 24, a stereo jack 26 serving as an audio signal extracting unit is provided. As shown in FIG. And earphones can be connected.

In the case of the embodiment, the AV device 10 is formed in a size that can be easily stored in a pocket of clothes, etc., and as shown in FIG. A display unit 30 including an inch liquid crystal display is provided. The display unit 30 can be covered by the lid 14. The opening / closing portion of the lid 14 has a second power switch (second
A switch 32 is provided, and is turned on / off in conjunction with opening and closing of the lid 14. That is, the second power switch 32
Is turned on when the lid 14 is opened, and is turned off when the lid 14 is closed.
Is released and turned on, an image is displayed on the display unit 30.

Further, as shown in FIG. 3, the AV device 10 has a built-in receiving antenna 34 in the main body 12. The receiving antenna 34 has a TV tuner 36 and an FM
A tuner 38 is connected so that a television broadcast and an FM broadcast can be received. The TV tuner 36
It is a normal electronic tuner, and selects a radio wave corresponding to a specific channel from the radio waves received by the receiving antenna 34 and outputs a video signal and an audio signal. TV tuner 3
A video separation circuit (video detector) 40 and an audio separation circuit (FM detector) 42 are connected to the output side of 6 via an intermediate frequency amplifier (not shown). And the video separation circuit 4
0 detects the video signal from the output signal of the TV tuner 36 and sends it to the display control unit 44. The display control unit 44 controls the display unit 30 composed of a liquid crystal display based on the output signal of the video separation circuit 40, and displays a television image (image) on the display unit 30.

The audio separation circuit 42 detects an audio signal (acoustic signal) from the output signal of the TV tuner 36 and outputs the audio signal to the electronic volume 46. In the case of the embodiment, the electronic volume 46 serves as an audio signal output unit, is connected to a control unit 50 including a CPU built in the main body 12, and outputs an output signal (volume adjusted by the control unit 50). Sound signal) to the stereo amplifier 48.
The stereo amplifier 48 is connected to a jack 26 as an audio signal extracting unit on the output side. The control unit 5
Numeral 0 is connected to the TV tuner 36 and the FM tuner 38, and controls the tuning of the reception antenna 34 with respect to the radio wave received. The control unit 50 is also connected to the video separation circuit 40, the audio separation circuit 42, and the display control unit 44, and controls these.

The AV device 10 has an adapter 52
Is provided. The adapter 52 mounts an external memory 54 made of a semiconductor memory such as a memory card, and has a control unit 50 and a DSP (Digital S
A music / video reproducer 56 composed of a signal processor is connected. The control unit 50 reads out music data (sound data) written in the external memory 54 or a part of image data of a digital camera or the like via the adapter 52 and stores the read data in a storage unit 58 provided inside the main body 12. It is also possible to store.

An electronic volume 46 is connected to the output side of the music / video reproducer 56. The audio data read from the external memory 54 via the adapter 52 is output to the electronic volume 46 to reproduce music. be able to. Further, content information such as a music title can be output to the display control unit 44 via the control unit 50 and displayed on the display unit 30. The music / image reproducer 56
Is connected to the control unit 50 and transfers image data of a digital camera or the like read from the external memory 54 to the control unit 5.
Enter 0. The control unit 50 outputs the image data from the music / image reproducer 56 to the display control unit 44, and displays an image based on the image data on the display unit 30 via the display control unit 44. Further, the control unit 50 includes the first power switch 20, the second power switch 32, the menu switch 22, the jog switch 24, and the volume increase switch 1 described above.
8a and a volume reduction switch 18b are connected, and these operation signals are input.

The operation of the AV device 10 according to the embodiment configured as described above is as follows. First, when the cover 14 of the AV device 10 is opened to expose the display unit 30, the second power switch 32 is turned on, and the menu screen (menu image) 60 shown in FIG. The menu screen 60 is a screen displayed when the power of the AV device 10 is first turned on, and is usually returned to the menu screen 60 by returning the display of the display unit 30 to the power as described later. If not turned off, the menu screen 60 will be displayed when the power is turned on.
Is not displayed.

The menu screen 60 displays function selection items 62 corresponding to the functions of the AV device 10. In this embodiment, the AV device 10 includes an audio function for listening to music and recorded conversation, an FM reception function for receiving FM broadcast, a TV reception function for receiving television (TV) broadcast, a digital camera, and the like. And an image display function for displaying images, texts, etc., and the menu screen 60 displays “A” corresponding to each function.
The function selection items 62 of “audio”, “FM”, “TV”, and “image display” are displayed side by side in the vertical direction. And
In the initial state, as shown in FIG. 4A, the cursor 64 is displayed at the position of "Audio" which is the top item 62. By operating the jog switch 24, which is a selection switch, the cursor 64 can be arbitrarily moved in the vertical direction in which the function selection items 62 are arranged, and can designate an item.

That is, the cursor 64 is moved to “Aud” by the down operation (JD operation) by the jog switch 24.
io ”to the position of“ FM ”. Further, the position of the cursor 64 is changed to “F” by the JD operation of the jog switch 24.
Move from "M" to "TV" and from "TV" to the "image display" position as shown in FIG. And FIG.
By the JD operation of the jog switch 24 from the state of (2), the cursor 64 returns to the position of “Audio”, and the same operation as described above is repeated. Further, for example, when the cursor 64 is at the position of “image display”, by performing the up operation (JU operation) of the jog switch 24, the cursor 64 is changed from “TV” → “FM” → “A”.
“audio” → “image display” → “TV” →... and indicates an item corresponding to a function (mode).

On the other hand, in the state of the menu screen 60, when the menu switch 22 is pressed for a predetermined time (for example, 2 seconds or more), the mode is shifted to the whole setting mode.
From the menu screen shown in FIG. 5 (1), for example, FIG. 5 (3)
Is displayed on the display unit 30, and the cursor 64 is positioned at the top of the setting items 68. The overall setting screen 66 is read out from the storage unit 58 by the control unit 50 and displayed. In the case of the embodiment, the overall setting screen 66 includes a screen brightness adjustment, whether or not to generate a beep sound, whether or not to display the channel of the television being received on the display unit 30, Items such as 30 background color adjustment and an audio mode (audio compression method) not shown are displayed. Items that are not displayed when the screen is shifted to the general setting screen 66 can be displayed by scrolling the jog switch 24 by performing a JU operation or a JD operation on the jog switch 24. The cursor 64 is displayed on the menu screen 60 described above.
As in the case of (1), it can be moved by operating the jog switch 24.

When changing the overall settings of the AV device 10,
For example, when changing the brightness of the screen, the item “screen brightness” is designated by the cursor 64 and the jog switch 2
4 is short-pressed (for example, less than 2 seconds) to perform an enter operation (JE operation). Thereby, the brightness adjustment screen 70 is displayed on the display unit 30 as shown in FIG. In the brightness adjustment screen 70, a position 72 corresponding to the item of “screen brightness” of the brightness adjustment screen 70 is displayed.
Is different from the other background colors, a plurality of adjustment buttons 74 for adjusting the degree of screen brightness are displayed below the background color, and the position of the adjustment button 74 representing the current screen brightness is A cursor 64 is displayed. The adjustment of the screen brightness is performed by the JD operation of the jog switch 24 and the JD operation.
The cursor 64 is moved by the -U operation, and a desired adjustment button 74 is selected. When returning from the brightness adjustment screen 70 to the overall setting screen 66, a JE operation is performed, and the set values are stored in the storage unit 58. Other setting items can be set by the same operation. When the menu switch 22 is pressed while the general setting screen 66 is displayed, the control unit 50 cancels the general setting mode and displays the menu screen 60 on the display unit 30.

FIG. 6 is an explanatory diagram of a method of selecting a function (mode) corresponding to each function selection item 62 from the menu screen 60. For example, when the user wants to use the AV device 10 as a television receiver, a menu screen 60 is displayed on the display unit 30 and the jog switch 24 is turned on as shown in FIG.
Is operated to move the cursor 64 in the up-down direction to indicate "TV" of the function selection item 62. Thereafter, when the JE operation of the jog switch 24 is performed, the control unit 50 selects a TV function (TV mode) corresponding to the item “TV”,
The TV tuner 36 is controlled to display a television image 76 on the display unit 30 as shown in FIG. At this time, the channel number 78 being received is simultaneously displayed on the upper right of the screen of the display unit 30 to indicate how many channels are being received. This channel number 78 will not be displayed in a few seconds if "Display OFF" is set in the overall setting described above. Selection of other modes can be performed in a similar manner.

That is, as shown in FIG. 6, the jog switch 24 is operated and the cursor 64 moves the item "Au".
"dio" and the JE operation are performed to enter the audio mode, and the item "FM" is designated and the JE operation is performed to enter the radio mode (FM reception function). When the E operation is performed, an image display mode is set. Returning to the menu screen 60 from these modes is performed by setting the menu switch (Me-SW) 22 to 1-2.
This can be done by pressing for a second. Further, for example, when shifting from the TV mode to the radio mode, the menu switch 24 is operated to return to the menu screen 60 from the TV mode. In this menu screen 60, the cursor 64 is set to “FM” and the J-switch of the jog switch 24 is pressed.
The radio mode is set by the E operation. That is, when switching from one function to another function, the AV device 10 of the embodiment returns to the menu screen 60 once and selects and performs a desired function.

On the other hand, in each of the selected functions (modes), a long press of the menu switch 22 (for example, 2 seconds or more)
Then, as shown in FIG. 6, the mode shifts to a setting mode state corresponding to each mode, and the control unit 50 displays an image corresponding to the setting mode state on the display unit 30. The return from the setting mode state to the corresponding mode is performed by a short press operation of the menu switch 22.

As described above, in the AV device 10 of the embodiment, the function selection items 62 corresponding to a plurality of functions are displayed on the display unit 30 and the jog switch 2 as a selection switch is displayed.
Since the selection is made by the number 4, a plurality of functions can be easily selected. When the menu switch 22 is operated, the selected function is canceled and the screen returns to the menu screen 60, and another function can be selected.
Many functions can be easily switched with only one switch, and the operation unit can be downsized.

The audio mode is used for playing back music or conversation written in the external memory 54 or the storage unit 58 built in the AV apparatus 10. For example, an external memory 54 storing music is loaded into the adapter 52,
When the audio mode is selected as in step 100 of FIG. 7, the control unit 50 gives a music reproduction command to the music / image reproducer 56. The music / image reproducer 56 reads out a music title, which is character information (character data) recorded in the external memory 54, and outputs it to the control unit 50. The controller 50 sends the character data sent from the music / image reproducer 56 to the display controller 44. The display control unit 44 drives the display unit 30 to enter the music selection mode, which is one of the operation modes in which the music title stored in the external memory 54 is displayed, and displays the music selection screen (step 102).

When a key operation is not performed for a predetermined time (for example, 10 seconds) while the music selection screen is displayed, the control unit 50 gives a command to the display control unit 44 to turn off the display unit 50. The display (screen) of the display unit 30 is automatically turned off. Then, when any key operation is performed in a state where the display is off, the control unit 50 displays the music selection screen on the display unit 30 again. At this time, the original function of the operated key is invalidated, and only the music selection screen is displayed. On the music selection screen, a plurality of music titles and playing times are displayed together with numbers in the order of recorded music.

Thereafter, as shown in step 104, the control unit 50 determines whether the menu switch 22 has been operated, and if so, determines whether or not a long press has been performed (step 106). If it is determined in step 106 that the operation of the menu switch 22 is a short press,
Return to the menu screen 60 as described above (Step 10
8). On the other hand, if the control unit 50 determines in step 106 that the operation of the menu switch 22 is a long press, the control unit 50 proceeds from step 106 to step 110 and enters the audio setting mode. In the audio setting mode, it is possible to set a repetition mode of reproduction, an equalizer, and the like. Then, when the menu switch 22 is operated in the audio setting mode state (step 112), the display returns to the music selection screen of step 102.

When the control unit 50 determines in step 104 that the menu switch 22 has not been operated, it determines whether or not the jog switch 24 has been operated as shown in step 114. When the JU operation of the jog switch 24 is performed, the cursor displayed on the music selection screen is moved up by one song, and when the JD operation is performed, the cursor is moved down one song. I do. When the JE operation of the jog switch 24 is performed, the mode shifts to a playback mode (play mode), which is an operation mode (step 120). At this time, the display unit 30 displays the title of the song, the name of the singer, the name of the player, the playing time, and the like.

Further, when the jog switch 24 is not operated, the mode is automatically shifted to the reproduction mode, and the music / image reproducer 56 displays the music selected by the cursor five seconds after the JE operation is performed. Automatic performance (reproduction) is performed (step 122 in FIG. 8). The control unit 50 also monitors whether or not each switch has been operated even during music playback, and determines whether or not the menu switch 22 has been operated in step 124. Then, when the menu switch 22 is operated, the control unit 50 determines whether or not the switch is long-pressed (step 126), and displays the menu screen 60 when the switch is short-pressed (step 12).
8) If the button is pressed for a long time, the mode shifts to the audio setting mode (step 130). When the menu switch 22 is operated in the audio setting mode (step 1).
32), the process proceeds to the playback mode of step 122; When it is determined in step 134 that the jog switch 24 has not been operated, the performance (reproduction) is continued.

On the other hand, if the menu switch 22 has not been operated in step 124, the flow advances to step 134 to determine whether or not the jog switch 24 has been operated. Then, when the JU operation is performed, step 136 is executed.
To determine whether the JU operation is a long press.
If the JU operation is a short press, the music immediately before (up one on the music selection screen) is selected (step 138), and the process returns to step 122 to start playing (playing) the music. In this embodiment, when a JU operation is performed during the reproduction of a music piece, the music piece is returned to the beginning of the music piece being reproduced and the music piece is reproduced.

The control unit 50 determines in step 136 that J
If it is determined that the -U operation is a long press, a so-called intro search mode, which is one of the operation modes, is entered (step 140), and the songs recorded in the external memory 54 are sequentially read forward by the JU operation. For example, the head of the music is reproduced for about 10 seconds. When the JD operation is performed in the intro search mode, the music pieces on the rear side are sequentially read out, and the head of the music piece is reproduced for about 10 seconds. Then, as shown in step 142, when the JE operation of the jog switch 24 is performed, step 1 is executed.
Then, the program returns to step 22 to play back the music being played at that time.

The control unit 50 determines in step 134 that J
If it is determined that the -D operation has been performed, the process proceeds to step 144, where it is determined whether the JD operation is a long press or a short press. When the controller 50 is a short press of the JD operation,
The next song in the music / image player 56 (the song at the bottom of the song selection screen)
Is selected (step 146), and the process returns to step 122 to reproduce the music. In step 144, J
-If it is determined that the D operation is a long press, step 14
As shown in FIG. 8, the mode shifts to a so-called frame feed mode, which is an operation mode, in which the reproduction position is moved to the front side of the music by the JU operation, and the reproduction position is moved to the rear side of the music by the JD operation. . Then, when the JE operation is performed in the frame feed mode, the control unit 50 returns to the reproduction state of step 122 and starts reproduction from the current position.

Further, when the control section 50 determines in step 134 that the JE operation has been performed, the reproduction of the temporary music is stopped, and a so-called pause mode is set (step 152). Then, when the JE operation is performed in this pause mode as shown in step 154, the pause mode is released, and the process returns to step 122 to resume reproduction. Although not shown, when the menu switch 22 is short-pressed in the pause mode or the intro search mode, the control unit 50 cancels the audio mode, displays the menu screen 60 on the display unit 30, and displays the menu switch 22. Pressing the button switches to the audio setting mode. In the embodiment, when the mode is shifted from the pause mode to the audio setting mode, the audio setting mode is released by operating the menu switch 22 and the mode returns to the pause mode. Further, in this embodiment, when the mode is shifted from the intro search mode to the audio setting mode, the audio setting mode is canceled by operating the menu switch 22, the last selected song in the intro search mode is determined, and the Performance (reproduction) is performed. When music stored in the storage unit 58 of the AV device 10 is reproduced, the reproduction is performed in substantially the same manner as described above.

On the other hand, when the cursor 64 is positioned on the item “TV” on the menu screen 60 and the JE operation is performed to select the TV function as shown in step 160 in FIG. A TV screen (TV broadcast image) is displayed (step 162). Then, as shown in step 164, the control unit 50 determines whether or not the menu switch 22 has been operated, and if it has been operated, determines whether it is a long press or a short press. (Step 166). When determining that the menu switch 22 is short-pressed in step 166, the control unit 50 releases the TV function and displays the menu screen 60 on the display unit 30 (step 167). If it is determined in step 166 that the menu switch 22 is long-pressed, T
The mode shifts to the V setting mode (step 168), and the display unit 3
The TV setting screen is displayed at 0.

In this TV setting mode, a channel selection method can be set, and a preset channel selection mode in which only stations that have been previously selected and registered (preset) are selected, and all channels are selected. And a direct channel selection mode in which are sequentially selected. Then, when the menu switch 22 is operated in the TV setting mode (step 17).
0), returning to step 162 to display the TV screen of the channel at the time of shifting to the TV setting mode on the display unit 30.

If the control unit 50 determines in step 164 that the menu switch 22 has not been operated, the process proceeds to step 172 and the J-switch of the jog switch 24
It is determined whether a U operation has been performed. If the JU operation has not been performed, the process returns to step 162 to continue displaying the TV screen. Then, the control unit 50 determines in step 172
When it is determined that the JU operation has been performed in step, the operation shifts to a channel selection mode in which the operation mode is set, and it is determined whether or not the channel selection method set in the TV setting mode is preset channel selection (step 174). If the channel selection method is not the preset channel selection, the control unit 50 shifts to the direct channel selection mode which is one of the operation modes as shown in step 176, and the channel is pressed by the short press of the JU operation of the jog switch 24. From the smaller value to the larger value,
That is, a channel is sequentially selected (searched) in a higher frequency, and a short press of the JD operation of the jog switch 24 sequentially selects a channel in a lower frequency one by one. It is displayed (step 162). Further, Jog switch 24 J
-If the button is continuously pressed in the U operation or the JD operation, channel selection (search) is continuously performed, and
When the operation of the jog switch 24 is stopped, the selection of the channel is determined. On the other hand, the control unit 50
If it is determined in 74 that the preset tuning is set, the preset tuning is performed in accordance with the operation of the jog switch 24. This preset channel selection is performed as shown in FIG.

In the preset mode, channel selection is performed as shown in FIG. First, the control unit 50
When the TV function is selected and the TV mode is set as shown in step 180, the jog switch 24
It is determined whether the -U operation or the JD operation has been long-pressed (step 182). Then, the control unit 50
When the long press of the JU operation or the JD operation is not performed, the process proceeds from step 182 to step 184 to set the operation mode to the step tuning mode. In the step tuning mode, when the JU operation or the JD operation of the jog switch 24 is short-pressed,
The registered (preset) channels are searched in order of higher frequency or lower frequency, and the broadcast video of the searched channel is displayed on the display unit 30. When the user of the AV device 10 selects a desired channel and stops operating the jog switch 24, the channel is fixed (step 188), and the broadcast content of the channel is displayed on the display unit 30 (step 180). ).

On the other hand, the step control unit 50
If it is determined at 82 that the JU operation or the JD operation has been long-pressed, the process proceeds from step 182 to step 1.
The routine proceeds to 90, where the operation mode shifts to the channel selection / playback mode. When the control unit 50 shifts to the channel selection / playback mode, the control unit 50 enters an automatic preset operation, sends a control signal to the TV tuner 36, and tunes to the output radio waves of each channel in ascending order of frequency. Then, the control unit 50 checks the reception state of each channel from the output signal of the TV tuner 36 or the video separator 40, and selects only the channel whose received radio wave intensity has a predetermined receivable intensity. Store (preset).

The control unit 50 controls all channels (UH
After checking the reception status for each of the F and VHF channels and ending the presetting, the flow advances to step 192 to automatically start the tuning of each of the preset channels, and to select the highest frequency among the preset channels. The low channel is read, the TV tuner 36 is controlled to receive the channel, and the received content is displayed on the display unit 30 for a predetermined time (for example, 5 seconds) (step 19)
4). Further, the control unit 50 operates the jog switch 24 in step 196 (JU operation, JD operation,
It is determined whether or not the JE operation has been performed, and when the jog switch 24 has been operated, the channel is fixed to the currently selected channel (step 198), and the step 18 is performed.
Returning to 0, the broadcast content is displayed on the display unit 30. The control unit 50 determines in step 196 that the jog switch 2
If it is determined that the operation of No. 4 has not been performed, the next station is selected (steps 200 and 190). This tuning is JU
If you enter the channel selection / play mode by long-pressing the operation,
Channels are sequentially tuned in the direction of higher frequency channels. In addition, when the channel selection / playback mode is entered by long pressing of the JD operation, the channel is sequentially selected in the direction of the channel having the lower frequency.

When the FM broadcast receiving mode, which is the radio mode, is selected, the display unit 30 displays, for example, the letters "FM", which is the FM receiving mode, at the upper left, and the frequency of the receiving station is displayed at the lower right. Will be displayed. Then, in the radio mode, as in the case of the TV mode, the mode is shifted to the radio setting mode (FM setting mode) by holding down the menu switch 22. In this radio setting mode, it is possible to set a channel selection method between preset channel selection and direct channel selection, and to set whether to listen to FM broadcasting in monaural or stereo. In the FM setting mode, the menu switch 22
Is pressed for 1 to 2 seconds, the mode returns to the radio mode as described above, and the broadcast station received before the shift to the radio setting mode is received. Note that direct tuning and preset tuning in the radio mode are performed in substantially the same manner as direct tuning and preset tuning in the TV mode.

When the image display mode is selected, the control unit 50 reads out the image data stored in the external memory 54 and displays the image on the display unit 30 via the image control unit 44. Then, when the JU operation is performed, the control unit 50 reads the previous image data (data having a small address in the external memory 54) and displays it on the display unit 30, and when the JD operation is performed, the next image data is displayed. Is read out and displayed on the display unit 30. In this image display mode, when the JE operation of the jog switch 24 is performed, as shown in FIG. 10, a plurality (9 in this embodiment) corresponding to the image data stored in the external memory 54 is displayed. ) Are displayed on the display unit 30 at the same time. In this thumbnail display, a reduced image can be selected by a JU operation or a JD operation. When the JE operation is performed again in the thumbnail display state, the mode returns to the normal image display mode,
The image selected in the thumbnail display is displayed on the display unit 30 in a normal size.

When a long press of the JU operation or the JD operation is performed while an image in the image display mode is normally displayed, a so-called slide show mode, which is an operation mode, is entered, and a plurality of images are displayed in a predetermined manner. Are displayed sequentially for each time. That is, in the slide show mode, after a certain time, for example, one minute, the next image data is read out instead of the currently displayed image and displayed for a predetermined time. Then, in the state of the slide show mode, JU operation, JD operation of the jog switch 24, JD operation,
When any of the JE operations is performed, the state in which the currently displayed image is displayed is maintained. In a state where the display of the images in the slide show mode is stopped, J
When the -E operation is performed, the display returns to the normal display state, and the image displayed at that time is continuously displayed.

In the image display mode, when the menu switch 22 is pressed for a long time, the mode shifts to the image setting mode. In the image setting mode, it is possible to set whether or not to use an image stored in the external memory 54 as wallpaper, to set an image to be used as wallpaper, to set a display time in the slide show mode, and the like. When the menu switch 22 is pressed down in the image setting mode, the display returns to the image display mode as described above.

In this image display mode, for example, an image captured by a digital camera and the like stored in the external memory 54 is also selected, so that the storage section 58 is selected.
And can be similarly displayed. Further, in the AV device 10 of the embodiment, when a radio mode or an audio mode is selected, an arbitrary image stored in the storage unit 58 can be displayed. This allows
For example, by displaying an image of a family, an image of a memorable scenery, or the like, a sense of unity with the family can be obtained, and the memories can be always remembered in a fresh and vivid state. The AV device is capable of displaying not only images but also texts, such as karaoke lyrics and characters adapted to voice in language learning.

As described above, in the AV device 10 according to the embodiment, when the cover 14 is opened and the display unit 30 is exposed,
When the second power switch 32 is turned on, an image is displayed on the display unit 30, and an audio signal is output to the jack 26, so that sound such as music (sometimes simply music) can be heard by the headphones 28. It has become. Then, in this state, the first power switch 2
When 0 is pressed, the power is turned off and the image and music are simultaneously turned off. When the lid 14 is closed while the lid 14 is opened to display images and output music, only the image display unit 30 is turned off, and the music can be continuously listened to. It is like that.
That is, the first power switch 20 and the second power switch 3
The display unit 30 and the output of the jack 26 due to ON / OFF of the signal 2 have a relationship as shown in FIG.

The control unit 50 has a predetermined period, for example, 10 μm.
Every second, the on / off state of the second power switch 32 is monitored, and the on / off state of the display unit 30 and the on / off state of the electronic volume 46 are monitored via the display control unit 44. Then, the control unit 50 controls the lid 14
Is closed, the second power switch 32 is off, the output of the display control unit 44 and the electronic volume 46 is off, and the output of the sound signal to the display unit 30 and the jack 26 is off. That is, in a state where the power of the AV device 10 is off, when the lid 14 is opened to watch, for example, a television and the second power switch 32 is turned on as shown in FIG. , C, the display control unit 44 is turned on to display an image on the display unit 30, the electronic volume control 46 is turned on, an audio signal is output to the jack 26, and the headphone 28 is used to listen to music or the like. To be able to Also, when the first power switch 20 is pressed in this state, d in FIG.
As shown in the figure, the pulse-like switch operation signal is
Enter 0. The control unit 50 determines whether the display unit 30 is on via the display control unit 44,
It is checked whether 6 is in the ON state. When both are on, the display control unit 44 and the electronic volume 46 are turned off and the display unit 30 and the jack 26 are turned off, as shown in FIGS.
Turn off the output to and.

When the cover 14 is opened and the second power switch 32 is turned on, the control unit 50
When the first power switch 20 is pressed and a pulse-like switch operation signal is input, as shown in FIG.
As shown in i, while turning on the display control unit 44 via the display control unit 44 to display an image on the display unit 30,
The electronic volume 46 is turned on to output an audio signal to the jack 26. Further, in this state, j in FIG.
When the first power switch 20 is depressed, the outputs of the display unit 30 and the jack 26 are turned off (k and l in FIG. 1).

When the outputs of the display controller 44 and the electronic volume 46 are off, the lid 14 is closed and the second power switch 32 is turned off as shown in FIG.
When the lid 14 is opened and the second power switch 32 is turned on, the display control unit 44 and the electronic volume 46 are turned on and the output is turned on, as shown in FIG. The signal is output to the display unit 30 and the output of the jack 26, and these are turned on (o, p in FIG. 1). In addition, in this state, when the lid 14 is closed and the second power switch 32 is turned off as shown in q of FIG. 5, the control unit 50 displays the display unit 30 as shown in r of FIG. Only, and output of the audio signal to the jack 26 is continued.
That is, when the user has no intention to view the image, the display unit 30 consuming a large amount of power is turned off by closing the lid, so that energy can be saved.
The life of the loaded battery (not shown) can be greatly extended. Therefore, frequent battery replacement and charging can be avoided.

Further, the control device 50 controls the second switch 3
2 is off, the display unit 30 is off, and the output of the audio signal to the jack 26 is on,
As shown in (1), when the first power switch 20 is pressed and a pulse-like switch operation signal is input, the output of the jack 26 is also turned off as shown at t in FIG. That is, the power of the AV device 10 is turned off. Then, when the first power switch 20 is pressed as shown in FIG. 1u in this state, the control device 50 keeps the display control unit 44 off and keeps the display unit 30 in the non-display state. While turning on the electronic volume 46, an audio signal is output to the jack 26, and only the jack 26 is turned on (v in the figure).
That is, the first switch 20 may be operated when listening to the FM radio or when the user wants to hear only music and does not need to display an image. Then, in this case, the display unit 30
Are in a non-display state, so that energy can be saved.

When the second power switch 32 and the display unit 30 are off (the display control unit 44 is off) and only the output of the jack 26 is on, as shown in FIG. When the lid 14 is opened and the second power switch 32 is turned on, the display unit 30 is turned on as shown by x in FIG. That is, for example, when listening to a CD and wishing to view an image, the cover 14 may be opened to expose the display unit 30. In this state, when it is not necessary to display an image, the lid 14 is closed and the second power switch 32 is turned off (y in FIG. 1), and only the display unit 30 is turned off as shown in FIG. The output of the audio signal to the jack 26 is continued. When the first power switch 20 is pressed down as shown by α in FIG. 1 in this state, the control unit 50 turns off the output of the jack 26 and turns off the power of the AV device 10 as shown by β in FIG. I do.

That is, the AV device 10 according to the embodiment
In the state where the cover 14 is closed and the display unit 30 is covered, the display unit 30 is always turned off because no image is viewed. As a result, energy can be saved,
The life of the battery loaded in the AV device 10 can be greatly extended. Then, when the user wants to view the image, the cover 14 is opened to expose the display unit 30.

In the embodiment, the function selected when the power is turned off by the control unit 50 is stored, and the function is selected when the power is turned on again. That is, as shown in FIG.
Is operated in the TV mode, g in FIG.
When the power is turned on by operating the first power switch 20 as in the above, the broadcast of the channel at the time of starting from the TV mode and performing the operation of d is output. The same applies when the power is turned off at j in FIG. 1 and the second power switch 32 is turned on as shown in FIG. Further, for example, when the power is turned off in the radio mode as shown in s in FIG. 1 and the power is turned on as shown in u in FIG. 1, the radio station starts up in the radio mode and receives the broadcast of the receiving station.

In the above embodiment, the case where a still image can be displayed in the image display mode has been described. However, it is possible to display a video, a moving image such as a CD or a DVD, or a text such as an electronic book. . In addition, a communication function can be provided, and the present invention can be applied to a URL or a searched streaming broadcast. Then, an arbitrary function can be added to the menu screen 60 in the moving direction of the cursor 64.

[0057]

As described above, according to the present invention, when the cover is closed and the display unit is covered, the display unit is automatically turned off, so that unnecessary power consumption can be avoided, and energy can be saved. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a time chart illustrating a relationship between a first power switch and a second power switch of an AV device according to an embodiment.

FIGS. 2A and 2B are explanatory diagrams of the portable AV device according to the embodiment, wherein FIG. 2A is a perspective view, and FIG. 2B is a front view with a lid opened.

FIG. 3 is a block diagram of a portable AV device according to the embodiment.

FIG. 4 is a diagram illustrating a method of selecting functions of the portable AV device according to the embodiment of the present invention.

FIG. 5 is a diagram illustrating a method of selecting a TV mode and a method of shifting to a general setting mode of the portable AV device according to the embodiment.

FIG. 6 is a diagram illustrating a function selection method and a method of shifting to a setting mode of the portable AV device according to the embodiment.

FIG. 7 is a flowchart illustrating a music selection method in the audio mode according to the embodiment.

FIG. 8 is a flowchart illustrating an audio mode according to the embodiment.

FIG. 9 is a flowchart illustrating a TV mode according to the embodiment.

FIG. 10 is a flowchart illustrating a preset channel selection mode in the TV mode according to the embodiment.

FIG. 11 is an explanatory diagram of a thumbnail display in the image display function according to the embodiment.

[Explanation of symbols]

10 AV device, 12 body, 14 lid,
18a ... volume increase button, 18b ... volume decrease button, 20 ... first switch (first power switch),
22 menu switch, 24 selection switch (jog switch), 26 acoustic signal extraction unit (jack), 30 display unit, 32 second switch (second power switch) .

Claims (8)

[Claims] 1. An audio-visual device having a display unit controlled by a display control unit to display an image and an audio signal extracting unit to which an audio signal is input from an audio signal output unit, wherein a first operation signal is output. A switch, a second switch that is turned on / off in response to opening and closing of a lid that covers the display unit, and the display control unit and the sound signal based on output signals of the second switch and the first switch. And a control unit for controlling the output unit and, when the lid is closed and the second switch is turned off, turning off the output of the display control unit and setting the display unit to a non-display state. Characteristic audiovisual equipment. 2. The audio-visual device according to claim 1, wherein the control unit is configured to open the lid and turn on the second switch, and to control the display control unit and the audio signal output unit. Wherein the output of the display control unit and the output of the audio signal output unit is turned off when an operation signal from the first switch is input when the output of the audiovisual device is on. 3. The audio / video according to claim 1 or 2,
In the visual device, the control unit is configured to control the first switch when the lid is open and the second switch is in an on state, and the outputs of the display control unit and the audio signal output unit are off. An audio-visual device that turns on the outputs of the display control unit and the audio signal output unit when an operation signal is input. 4. The audio-visual device according to claim 1, wherein said control unit is configured to close said lid and to turn off said second switch, and to control said display control unit and said display control unit. When the output of the sound signal output unit is off, when the lid is opened and the second switch is turned on, the output of the display control unit and the sound signal output unit is turned on. Audio-visual equipment. 5. The audio-visual device according to claim 1, wherein the control unit is configured to open the lid and to turn on the second switch,
When the output of the display control unit is off and the output of the audio signal output unit is on, when the operation signal from the first switch is input, the output of the audio signal output unit is maintained on. An audio-visual device, wherein the output of the display control unit is turned on while performing the operation. 6. The audio-visual device according to claim 1, wherein the control unit is in a state where the lid is closed and the second switch is off,
When the output of the display control unit and the sound signal output unit is off, and when an operation signal from the first switch is input, the output of the display control unit is kept off to output the sound signal output. Audio / visual equipment characterized by turning on the output of a unit. 7. The audio-visual device according to claim 1, wherein the control unit is configured to close the lid and turn off the second switch,
When the output of the display control unit is off and the output with the audio signal output unit is on, the output of the display unit is kept off when an operation signal from the first switch is input. An audio-visual device, wherein the output of the audio signal output unit is turned off while performing the operation. 8. The audio-visual device according to claim 1, wherein the control unit is in a state where the lid is closed and the second switch is off,
When the output of the display control unit is off and the output with the audio signal output unit is on, the lid is opened and the second
An audio-visual device, wherein when a switch is turned on, an output of the display control unit is turned on while an output of the audio signal output unit is kept on.