JP2009230712A - Media reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a media reproduction device which can be operated for a long time while maintaining portability and high degree of freedom of installation. <P>SOLUTION: A body 100 includes a first battery 150, and a second battery 210 is mounted on an attachable/detachable stand part 200. The body 100 is driven by power of the first battery 150 by power management of a power management part 170 when separated from the stand part 200, and meanwhile it is driven by power of the second battery 210 by the power management of the power management part 170 when connected to the stand part 200. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a media playback apparatus capable of displaying video, for example.

  As is well known, a PDA (Personal Digital Assistance), an electronic photo stand, a portable music player, and the like can be operated without using an AC power source or the like by providing a secondary battery as drive power. In particular, a media playback device such as an electrophotographic stand is generally used standing on a desk. For this reason, what mounted a secondary battery in a stand is considered (for example, refer patent document 1).

On the other hand, the media playback device is excellent in portability by using a secondary battery as driving power, and has a high degree of freedom in the place of use because there is no need to take an AC power source. Secondary batteries are required, and if the capacity is increased, portability is impaired. That is, there is a problem that it is difficult to extend the operation time while maintaining portability and high degree of freedom of installation.
JP 2004-220440 A

The conventional media playback device has a problem that it is difficult to extend the operation time while maintaining portability and high degree of freedom of installation.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a media playback device that can be operated for a long time while maintaining portability and high degree of freedom of installation.

  In order to achieve the above object, the present invention is a media playback device that includes a main body and a stand portion, and has a mechanism that is detachable from each other. The main body includes storage means for storing image data, A display unit that displays an image based on image data stored in the storage unit; a first battery that stores driving power of the display unit; and a stand unit that supplies the driving power of the main body; Supply means for supplying drive power stored in the second battery to the main body when connected, and the main body displays drive power supplied from the second battery through the supply means and drive power stored in the first battery And a power management means for supplying to the means.

As described above, in the present invention, an image is displayed using the power stored in the first battery provided in the main body and the power stored in the second battery provided in the stand unit as drive power.
Therefore, according to the present invention, not only driving power can be obtained from the first battery provided in the main body, but also driving power can be obtained from the second battery provided in the detachable stand portion. A media playback device that can be operated for a long time while maintaining a high degree of freedom in installation can be provided.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the configuration of a media playback apparatus according to an embodiment of the present invention. This media playback apparatus includes a main body 100 and a stand unit 200, and can be separated as shown in FIG.

Moreover, as shown in FIG. 3, the main body 100 and the stand part 200 are comprised.
The main body 100 includes a display unit 110, a card I / F 121, a PCI / F 122, an operation unit 130, an AC adapter I / F 140, a first battery 150, a main body side electrode 160, a power management unit 170, and a storage. Unit 180 and a control unit 190. The stand unit 200 includes a second battery 210 and a stand-side electrode 220.

  The display unit 110 uses a display device such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) display. The display unit 110 displays a still image or a moving image according to the control of the control unit 190 to be described later. To be shown.

  The card I / F 121 is an interface for connecting various card-type flash memories. According to the control of the control unit 190, the card I / F 121 reads data from the connected flash memory or records data in the flash memory. To do.

  The PCI / F 122 is an interface for connecting to a personal computer such as USB (Universal Serial Bus) or IEEE (The Institute of Electrical and Electronics Engineers, Inc.) 1394, and is connected according to the control of the control unit 190. Accepts data input from the personal computer or outputs data to the personal computer.

The operation unit 130 is a user interface using a plurality of key switches and receives instructions from the user.
The AC adapter I / F 140 is supplied with DC power from an AC adapter (not shown), and outputs the supplied power to the power management unit 170 described later.

  The first battery 150 is a secondary battery such as a lithium ion type or a nickel hydride type, and accumulates drive power of the media playback device. The second battery 210 is a similar secondary battery, but has a larger power capacity than the first battery 150. The main body side electrode 160 is electrically connected to the stand side electrode 220 of the stand unit 200, receives power from the second battery 210, and outputs the supplied power to the power management unit 170.

  The power management unit 170 supplies power supplied from the first battery 150, the main body side electrode 160, or the AC adapter I / F 140 to each unit of the media playback device under the control of the control unit 190. In addition, when power is supplied from the AC adapter I / F 140, the power management unit 170 uses this power as driving power and charges the first battery 150 and the second battery 210. A known technique can be applied to the control related to the charging.

  In addition, when receiving power supply from the second battery 210 through the body-side electrode 160, the power management unit 170 uses power from the second battery 210 as drive power preferentially over power from the first battery 150. Thereafter, when the supply of power from the second battery 210 is interrupted (detachment of the stand unit 200 or power consumption of the second battery 210), the power of the first battery 150 is used as drive power.

  That is, when the stand unit 200 is attached to the main body 100, the power of the second battery 210 is used as driving power, while the amount of power stored in the second battery 210 is reduced, or the stand unit 200 is removed from the main body 100. When the battery is disconnected, the power management unit 170 controls power supply so that the power of the first battery 150 is used as driving power.

  The storage unit 180 stores the control program and control data of the control unit 190, and stores image data captured from the outside through the card I / F 121 and the PCI / F 122.

  The control unit 190 controls each unit of the media playback apparatus in an integrated manner, and performs control based on a control program and control data stored in the storage unit 180 for each unit. For example, image data or the like is read from the outside through the card I / F 121 or the PCI / F 122 and recorded in the storage unit 180. Further, the display unit 110 is driven and controlled based on the image data read from the storage unit 180, and the video based on the image data is displayed on the display unit 110. In addition, in response to a request from the user through the operation unit 130, the image data to be displayed is switched, or external data is read or output.

Next, a connection structure between the main body 100 and the stand unit 200 will be described.
As shown in FIGS. 4 and 5, the stand unit 200 includes a hold unit 230 for connecting to the back surface of the main body 100 and a second battery storage unit 240 for storing the second battery 210, which are on the hold unit 230 side. It is connected so as to be rotatable by a rotating hinge part 201 provided on the head.

  The hold unit 230 has a planar shape for connecting to the main body 100, and includes a stand-side rail portion 203 that fits into the main body-side rail groove 101 provided on the main body side as shown in FIG. . In addition, the hold unit 230 includes a stand-side electrode 220 at a position where it comes into contact with the main body-side electrode 160 provided on the back surface of the main body 100 when connected to the main body 100 (see FIG. 7).

  In addition, the hold unit 230 includes a lock unit 202 as shown in FIGS. The lock portion 202 includes a leaf spring portion 2021 formed by cutting out the hold portion 230 and a lock convex portion 2022 raised at the end portion. On the other hand, on the back surface of the main body 100, as shown in FIG.

  When the main body 100 and the stand part 200 are slid so that the main body side rail groove 101 and the stand side rail part 203 are fitted, the main body side electrode 160 and the stand side electrode 220 are electrically connected, The lock convex portion 2022 and the lock concave portion 102 are fitted to complete the connection. In addition, since this connection is fixed by the stress of the leaf spring portion 2021, the engagement between the lock convex portion 2022 and the lock concave portion 102 is released by applying a force that slides again and deflects the leaf spring portion 2021. Is done.

  When the main body 100 and the stand unit 200 are connected, the second battery storage unit 240 and the main body 100 are rotated by rotating the rotary hinge unit 201 so that the surface of the second battery storage unit 240 and the surface of the main body 100 have a certain angle. Each of the bottom surfaces becomes a leg, and the main body 100 can be used in a standing state.

  As described above, in the media playback device having the above-described configuration, the main body 100 includes the first battery 150, the second battery 210 is mounted on the removable stand unit 200, and the main body 100 is detached from the stand unit 200. Are driven by the power of the first battery 150 by the power management of the power management unit 170, while being driven by the power of the second battery 210 by the power management of the power management unit 170 when connected to the stand unit 200. I am doing so.

  Therefore, according to the media playback device having the above-described configuration, operation with excellent portability can be performed by removing the main body 100 from the stand unit 200, and long-time operation can be performed by connecting the main unit 100 to the stand unit 200. It becomes. Moreover, since an AC adapter is not necessarily required, the degree of freedom of installation is high.

  That is, when carrying or using it in the hand, the main body 100 is detached from the stand unit 200 for operation, and when using it without holding it in the hand, the main body 100 is connected to the stand unit 200 for operation. be able to.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. Further, for example, a configuration in which some components are deleted from all the components shown in the embodiment is also conceivable. Furthermore, you may combine suitably the component described in different embodiment.

  As an example, for example, in the above-described embodiment, an electronic apparatus corresponding to an electrophotographic frame has been described as an example of a media playback device. However, the present invention is not limited to this, and various portable electronic apparatuses are used. For example, the present invention can be applied to a PDA, a portable music playback device, and the like.

In the above-described embodiment, the configuration in which the main body 100 and the stand portion 200 are connected so that the main body 100 is supported by the stand portion 200 in order to place the main body 100 in an upright state is described as an example. It is not limited to such a connection structure. For example, the stand 200 may have a cradle shape, and the main body 100 may be placed on the stand 200 so that the main body 100 and the stand unit 200 are connected.
In addition, it goes without saying that the present invention can be similarly implemented even if various modifications are made without departing from the gist of the present invention.

1 is an external view showing the configuration of an embodiment of a media playback apparatus according to the present invention. The figure which shows the state which the media reproducing apparatus shown in FIG. 1 isolate | separated. The figure which shows the functional block of the media reproduction apparatus shown in FIG. The external view which looked at the media reproducing apparatus shown in FIG. 1 from the back diagonal direction. The external view which looked at the stand part of the media reproducing apparatus shown in FIG. 1 from the front diagonal direction. The figure which expanded the connection part of the main body and stand part of the media reproducing apparatus shown in FIG. The figure which expanded the connection part of the main body and stand part of the media reproducing apparatus shown in FIG. The figure which expanded the connection part at the time of the connection of the main body and stand part of the media reproducing apparatus shown in FIG. The figure which expanded the lock part of the stand part of the media reproducing apparatus shown in FIG. The figure which expanded the lock | rock recessed part of the main body of the media reproducing apparatus shown in FIG. The figure which expanded the connection part at the time of the connection of the main body and stand part of the media reproducing apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Main body, 101 ... Main body side rail groove, 102 ... Lock recessed part, 110 ... Display part, 121 ... Card I / F, 122 ... PCI / F, 130 ... Operation part, 140 ... AC adapter I / F, 150 ... First Battery: 160 ... Main body side electrode, 170 ... Power management unit, 180 ... Storage unit, 190 ... Control unit, 200 ... Stand unit, 201 ... Rotating hinge unit, 202 ... Lock unit, 203 ... Stand side rail unit, 210 ... Second Battery: 220 ... Stand side electrode, 230 ... Hold part, 240 ... Second battery storage part, 2021 ... Plate spring part, 2022 ... Lock convex part, 170 ... Adapter I / F.

Claims (4)

A media playback device that includes a main body and a stand portion, and has a mechanism that is detachable from each other,
The body is
Storage means for storing image data;
Display means for displaying an image based on the image data stored in the storage means;
A first battery for storing the driving power of the display means,
The stand part is
A second battery for supplying driving power for the main body;
Supply means for supplying driving power stored in the second battery to the main body when connected to the main body;
Furthermore, the body is
A media playback apparatus comprising: power management means for supplying drive power supplied from the second battery through the supply means and drive power stored in the first battery to the display means.   When the drive power is supplied from the second battery through the supply means, the power management means supplies the drive power to the display means, while the drive power is not supplied from the second battery. In the case, the media reproducing apparatus according to claim 1, wherein driving power stored in the first battery is supplied to the display unit. A media playback device having a stand unit incorporating an external battery and a detachable mechanism,
Storage means for storing image data;
Display means for displaying an image based on the image data stored in the storage means;
An internal battery for storing the driving power of the display means;
A media reproducing apparatus comprising: drive power supplied from the external battery; and power management means for supplying drive power stored in the internal battery to the display means.   When the driving power is supplied from the external battery, the power management means supplies the driving power to the display means, and when the driving power is not supplied from the external battery, the power management means 4. The media reproducing apparatus according to claim 3, wherein driving power stored in a battery is supplied to the display means.

Images