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DESCRIPTION JP2013218702

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DESCRIPTION JP2013218702
Abstract: The present invention provides an electronic device capable of optimum viewing while
connected to a docking station, and a control method thereof. An electronic device (1) has a
connector (2) detachably connected to a docking station (100) and an LCD (3) for displaying an
image. When the moving image reproduction application 31 reproduces a moving image in a
state where the electronic device 1 is connected to the docking station 100, the image is
displayed larger than in the case where the electronic device 1 is not connected to the docking
station 100. [Selected figure] Figure 4
Electronic device and control method thereof
[0001]
Embodiments of the present invention relate to an electronic device and a control method
thereof.
[0002]
In recent years, rectangular flat electronic devices called slate type have appeared.
Furthermore, in addition to the slate type electronic device, a docking station (cradle) for
charging the electronic device and expanding its function has also been developed.
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[0003]
It has been conventionally performed to change the operation setting of the electronic device
when connected to the docking station and when not connected. For example, Patent Document
1 discloses a driver for controlling an audio controller based on connection / disconnection
information of a docking station (see Patent Document 1).
[0004]
Unexamined-Japanese-Patent No. 2003-22149
[0005]
Some slate electronics docking stations hold the electronics upright and the display is configured
to be oriented horizontally.
A user can also view a moving image or the like displayed on a display in such a docking station
with the electronic device attached to the docking station. The use form mounted on the docking
station increases the distance between the user and the electronic device as compared to the
normal use form held and used by the user. Therefore, in the case of the use form in which the
user is attached to the docking station, the size and the volume of the image are small if the size
and the volume of the image in the normal use form remain, which may hinder viewing.
[0006]
An object of the present invention is to provide an electronic device capable of optimum viewing
while connected to a docking station and a control method thereof.
[0007]
According to the embodiment, the connection unit detachably connected to the external device,
the speaker for outputting the sound, and the sound volume control unit for controlling the
sound volume of the sound to be output from the speaker, the moving image being reproduced
When the connection state between the external device and the connection portion is detected
and the connection between the external device and the connection portion is detected, the
volume of the sound is greater than when the connection portion is not connected to the external
device. And volume control means for outputting an audio to the speaker at a volume output
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when the connection is not made in response to the end of reproduction of the moving image.
[0008]
Further, according to the embodiment, the control method outputs a voice to the speaker, and
during playback of a moving image, detects a connection state between the connection unit
detachably connected to the external device and the external device, When the connection
between the external device and the connection portion is detected, the volume of the sound is
output to the speaker larger than that in the case where the connection portion is not connected
to the external device, and according to the end of reproduction of the moving image. Sound is
output to the speaker at the volume that is output when the connection is not made.
[0009]
FIG. 3 is a view for explaining a usage form of the electronic device in the embodiment.
FIG. 2 is a block diagram showing a system configuration of the electronic device and the
docking station in the embodiment.
FIG. 5 is a first configuration diagram showing moving image reproduction control in the
electronic device in the embodiment.
5 is a first flowchart showing a moving image reproduction control procedure of the electronic
device in the present embodiment. FIG. 7 is a second configuration diagram showing moving
image reproduction control in the electronic device in the embodiment. 5 is a second flowchart
showing a moving image reproduction control procedure of the electronic device in the present
embodiment.
[0010]
Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a view for
explaining a usage pattern of the electronic device 1 in the present embodiment. First, the
external structure of the electronic device 1 and the docking station 100 will be described. The
electronic device 1 has a rectangular flat shape as shown in FIG. The electronic device 1 is a
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personal computer such as a so-called slate type or tablet type (display device having a function
of a soft keyboard), a television, a smartphone, a mobile phone, or the like.
[0011]
The electronic device 1 is provided with an LCD (Liquid Crystal Display) 3 as a display unit, a
power switch 6, and an LED (Light Emitting Diode) 7 so as to be exposed on the surface of the
housing 1 a. A transparent touch panel 4 is provided on the upper surface of the LCD 3, and a
touch screen display is realized by the LCD 3 and the touch panel 4. Then, the touch screen
display detects a touch area (also referred to as a touch position) on the display screen touched
by a pen or a finger. The user operates the touch panel 4 and the power switch 6 to perform
various operations.
[0012]
The power switch 6 is provided so as to be exposed on the surface of the housing 1 a and
receives an operation input for turning on / off the power of the computer 1. The LED 7 is a
device that emits light to notify the user of the operation state of the computer 1. The LED 7 can
indicate various operation states by switching the lighting color or lighting / flashing.
[0013]
The electronic device 1 has a connector 2 for connecting to the docking station 100. The
connector 2 is provided in an opening provided on the side surface of the housing 1 a and is
exposed from the opening. Between the electronic device 1 and the docking station 100, for
example, power supply power, various data, video signals, audio signals and the like are
transmitted and received via (the terminals of) the connector 2 and (the terminals of) the
connector 101. .
[0014]
Next, the docking station 100 according to the present embodiment will be described. The
docking station 100 is connected to the electronic device 1 to increase the number of connectors
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that the electronic device 1 originally has, to expand functions that the intrinsic has originally,
and to add functions that the electronic device 1 does not originally have. Can be That is, the
docking station 100 is an example of the function expansion device for the electronic device 1.
[0015]
As shown in FIG. 1, the docking station 100 according to the present embodiment supports a
relatively thin flat electronic device 1 with the electronic device 1 standing. That is, the docking
station 100 is an example of a support device, a holding device, a support, a support, a mount,
and a holder of the electronic device 1.
[0016]
The docking station 100 further includes a connector (connection portion, connection area) 101
connected to the connector (connection portion, connection area) 2 of the electronic device 1.
The docking station 100 supports the electronic device 1 in a state in which the connector 101
and the connector 2 are connected.
[0017]
In addition to the connector 101, the docking station 100 has a connector (not shown) connected
to a connector (external connector) other than the connector 2 of the electronic device 1 on the
back surface. That is, the docking station 100 is an example of an intervening device interposed
between another electronic device (not shown) and the like.
[0018]
Then, as described above, in order to function as a function expansion device, a connection
device, an intervening device, etc., in the housing of the docking station 100, in addition to the
connector 101, a circuit board (printed wiring board) or Electronic parts, electrical parts, wiring,
etc. are accommodated.
[0019]
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In the present embodiment, there are two usage modes: (A) an undocked state shown in the
upper part of FIG. 1 and (B) a docked state shown in the lower part of FIG.
(A) In the undocked state, the user holds and uses the electronic device 1 in his hand, and the
user performs an operation by touching the touch panel 4 with a finger or the like. In other
words, (A) the undocked state is a normal use state of the electronic device 1 provided with the
touch screen.
[0020]
(B) In the docked state, the electronic device 1 is attached to the docking station 100, and the
electronic device 1 stands in the vertical direction. Therefore, as a method of use, it is possible to
view a moving image or the like displayed on the display at a position away from the user. That
is, in the (B) docking state, the user operation is not performed, and the viewing of the moving
image to be reproduced is mainly performed. Here, the distance between the user and the
electronic device 1 is relatively longer than the distance between the user and the electronic
device 1 in the docking state (B) than in the undocked state (A). Therefore, the size and volume of
the (A) undocked image may be small for the user in (B) docked. That is, since the distance from
the electronic device 1 is long, it is difficult to view an image, can not be read because the
characters such as subtitles are small, and the volume can not be heard small. The present
embodiment for solving such a problem will be described below.
[0021]
FIG. 2 is a block diagram showing a system configuration of the electronic device 1 and the
docking station 100 in the present embodiment. The electronic device 1 includes a central
processing unit (CPU) 10, a bridge device 11, a main memory 12, a graphics controller 13, a
sound controller 25, a speaker 26, a solid state drive (SSD) 16, and a basic input / output systemBIOS-ROM. A read only memory (15), an embedded controller (EC) 18, a power supply circuit 23
and the like are provided.
[0022]
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The CPU 10 is a processor that controls the operation of each component of the electronic device
1. The CPU 10 executes an operating system (OS) 30 and various utility / application programs
read from the SSD 16 to the main memory 12. The CPU 10 also executes the BIOS stored in the
BIOS-ROM 15. The BIOS is a program for controlling hardware. In the present embodiment, the
CPU 10 also executes a video playback application 31.
[0023]
The CPU 10 can appropriately switch the size of the image or the volume according to the use
state of the electronic device 1 by executing the moving image reproduction application 31.
Images include moving images and characters. Further, as a method of switching the size of the
image, there are enlargement of part of the image, change of the size of the window (screen),
change of the character size, and the like.
[0024]
The bridge device 11 has a function of executing communication with the graphics controller 13.
The graphics controller 13 is a display controller that controls the LCD 3 used as a display of the
computer 1.
[0025]
Furthermore, the bridge device 11 incorporates a memory controller that controls the main
memory 12. The bridge device 11 also executes communication with each device on a Peripheral
Component Interconnect (PCI) bus and each device on a Low PIN Count (LPC) bus.
[0026]
The main memory 12 is a temporary storage area into which the OS 30 and various applications
executed by the CPU 10 are read. The main memory 12 reads programs such as the OS 30 and
the moving image reproduction application 31 stored in the SSD 16.
[0027]
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The graphics controller 13 executes display processing (graphics operation processing) for
drawing display data on a video memory (VRAM) based on a drawing request input from the CPU
10 via the bridge device 11.
Display data corresponding to the screen image displayed on the LCD 3 is stored in the video
memory.
[0028]
The SSD 16 stores various parameter information related to the reproduction operation. The
parameter information includes, for example, subtitle size information 160, luminance
information 161, volume information 162, screen size information 163, and DPI value 164. The
subtitle size information 160 includes a parameter value indicating the size of a subtitle
displayed together with the moving image. The luminance information 161 includes a parameter
value indicating the brightness of the LCD 3. The volume information 162 includes a parameter
value indicating the volume output from the speaker 15. The screen size information 163
includes a parameter value indicating the size of the window (screen) displayed on the LCD 3. For
example, full screen display can be switched by increasing the parameter value of the screen size
information. The DPI value 164 is a parameter value indicating how many points are represented
by 1 inch. By increasing the DPI value, the display range can be narrowed, that is, enlarged
display.
[0029]
The video playback application 31 performs video playback using these various parameter
information. When the setting of various parameter information is changed by the user
operation, the moving image reproduction application 31 performs reproduction with the
instructed parameter value. As for various parameter information, parameter values designated
by the user are stored as user setting values. When not changed at the time of initial operation or
by the operation of the user, the user setting value is the same as the parameter value set at the
time of shipment. Moving picture reproduction control using various parameter information of
the moving picture reproduction application 31 will be described in detail later.
[0030]
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The embedded controller (EC) 18 has a function of powering on / off the computer 1 in response
to the user's operation of the power switch 6. That is, the embedded controller (EC) 18 controls
the power supply circuit 23. The embedded controller (EC) 18 also includes a touch panel
controller 19 that controls the touch panel 4 provided on the LCD 3. The embedded controller
(EC) 18 always operates regardless of whether the electronic device 1 is powered on / off.
[0031]
The embedded controller (EC) 18 further includes a docking detection unit 20 that detects that
the connector 2 is connected to the first connector 101. That is, the docking detection unit 20 is
connected to a detect signal line for detecting attachment (docking) / removal (undocking) of the
docking station 100. When the docking station 100 is connected, the detect signal changes from
high level to low level by being connected to the ground terminal of the docking station 100. On
the other hand, when the docking station 100 is removed, the detect signal changes from the low
level to the high level due to the pull-up resistance in the electronic device 1 because it is
separated from the ground terminal of the docking station 100. The docking detection unit
detects the attachment / detachment of the docking station 100 based on the potential change of
the detect signal.
[0032]
The touch panel 4 is configured to detect a touch area (touch position) on the touch panel (touch
screen display) using, for example, a resistance film method or a capacitance method.
[0033]
The power supply circuit 23 generates a system power supply to be supplied to each component
of the electronic device 1 using the external power supply supplied from the AC adapter 22 when
the external power supply is supplied via the AC adapter 22.
Further, when external power is not supplied via the AC adapter 22, the power supply circuit 23
uses the battery 21 to generate system power to be supplied to each component of the computer
1.
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[0034]
The docking station 100 includes a first connector 101, a second connector 102, an I / O
controller 103, and an EEPROM 104. The first connector 101 is a connector for connecting to
the electronic device 1, and the second connector 102 is a connector for connecting to another
electronic device (not shown). When the first connector 101 is connected to the connector 2, the
I / O controller 103 is electrically connected to the I / O controller of the electronic device 1 via
the bus signal line. The I / O controller 103 transmits and receives various data and control
signals via the bus signal line.
[0035]
The EEPROM 104 stores identification information of the docking station 100. When the first
connector 101 is connected to the connector 2, the I / O controller 103 and the EEPROM 104
are connected to the power supply circuit 21 of the electronic device 1, and power is supplied
from the power supply circuit 21.
[0036]
FIG. 3 is a first configuration diagram showing moving image reproduction control in the
electronic device 1 in the present embodiment. As a first embodiment, moving image
reproduction control performed by the moving image reproduction application 31 using the
subtitle size information 160, the luminance information 161, the volume information 162, and
the screen size information 163 will be described. As the second embodiment, moving image
reproduction control performed by the OS 30 using the DPI value 164 will be described later.
[0037]
First, the CPU 10 executes the moving image reproduction application 31 to reproduce moving
image data. Next, when the docking detection unit 20 detects that the first connector 101 of the
docking station 100 is connected, the docking detection unit 20 notifies the OS 30 of a detect
signal. The OS 30 notifies the video reproduction application of the detect signal. The video
playback application 31 changes the value to a value larger than the parameter value used for
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the playback operation currently being executed. The change of the parameter value may be
made selectable by the user as to whether or not the change is made, or the moving image
reproduction application 31 may automatically change it. In addition, the video reproduction
application 31 may change the parameter information selected by the user, or may automatically
change all the parameter information. When the parameter information to be changed is selected
by the user, for example, control can be performed according to the user's preference, such as
largely changing only the volume and maintaining the size of the image.
[0038]
The video reproduction application 31 notifies the OS 30 of the changed parameter value. The
OS 30 controls the sound controller 14 and the graphics controller 13 using the notified
parameter value. By the above control, the size, brightness, volume, and screen size of subtitles
can be increased in the docking state.
[0039]
FIG. 4 is a first flowchart showing a moving image reproduction control procedure of the
electronic device 1 in the present embodiment. First, the video playback application 31 executes
video playback (step S101). Next, the docking detection unit 20 determines whether or not it is in
the docking state (step S102). That is, the docking detection unit 20 detects that the first
connector 101 is connected to the connector 2 from the potential change of the detect signal
line. As a result of the determination in step S102, when it is determined that it is in the docking
state (Yes in step S102), the parameter value is set larger than the user setting value (step S103).
That is, in the docked state, the subtitle size, the volume, the screen size are large, and the
brightness of the LCD 3 is high.
[0040]
On the other hand, as a result of the determination in step S102, when it is determined that it is
not in the docking state (No in step S102), the video reproduction application 31 sets the
parameter value to the user setting value (step S104). That is, in the undocked state,
reproduction of the state set by the user continues without changing the various parameter
information.
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[0041]
Next, the video playback application 31 determines whether the video playback has ended (step
S105). As a result of the determination in step S105, when it is determined that the moving
image reproduction has not ended (No in step S105), the process transitions to step S102. On the
other hand, as a result of the determination in step S105, when it is determined that the video
reproduction has ended (Yes in step S105), next, the video reproduction application 31
determines whether or not the parameter value is set to the user setting value. (Step S106). As a
result of the determination in step S106, when it is determined that the parameter value is set to
the user setting value (Yes in step S106), the moving image reproduction control procedure is
ended. On the other hand, as a result of the determination in step S106, when it is determined
that the parameter value is not set to the user setting value (No in step S106), the video playback
application 31 sets the parameter value to the user setting value (step S107). . That is, when the
moving image reproduction ends, the size of the user-set image or volume returns. This is the
end of the video playback control procedure.
[0042]
As described above, in the moving image reproduction in the first embodiment, the moving image
reproduction application 31 changes various parameter information in accordance with the
switching of the docking / undocking state. Therefore, when playing back a moving image in the
docked state, the subtitle size, the brightness, the volume, the screen size, and the like are set
large, so that viewing is not disturbed even at a position away from the electronic device 1.
[0043]
Next, a second embodiment will be described. FIG. 5 is a second configuration diagram showing
moving image reproduction control in the electronic device 1 in the present embodiment. First,
when the docking detection unit 20 detects that the first connector 101 of the docking station
100 is connected, the docking detection unit 20 notifies the OS 30 of a detect signal.
[0044]
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When notified of the detect signal, the OS 30 changes the DPI value more than the value
currently used for display. By the above control, the display can be enlarged in the docked state.
[0045]
FIG. 6 is a second flowchart showing a moving image reproduction control procedure of the
electronic device 1 in the present embodiment. First, the docking detection unit 20 determines
whether it is in the docking state (step S201). That is, the docking detection unit 20 detects that
the first connector 101 is connected to the connector 2 from the potential change of the detect
signal line. As a result of the determination in step S201, when it is determined that the camera is
in the docking state (Yes in step S201), the DPI value 164 is set larger than the user setting value
(step S202). That is, in the docked state, the screen is enlarged.
[0046]
On the other hand, as a result of the determination in step S201, when it is determined that it is
not in the docking state (No in step S201), the OS 30 sets the DPI value to the user setting value
(step S203). That is, in the undocked state, the DPI value is not changed, and the reproduction set
by the user continues.
[0047]
As described above, in the moving image reproduction according to the second embodiment, the
OS 30 changes the DPI value according to the switching between the docking / undocking state.
Therefore, since the screen display in the docked state is enlarged, viewing is not disturbed even
at a position away from the electronic device 1.
[0048]
In the above description, although the image and the volume are largely changed by changing
the parameter information and the DPI value, the present invention is not limited to this. The
internal processing in the electronic device 1 may be in another form as long as the image and
the sound volume are changed larger in the docked state than in the undocked state.
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[0049]
While certain embodiments of the present invention have been described, these embodiments
have been presented by way of example only, and are not intended to limit the scope of the
invention. These novel embodiments can be implemented in various other forms, and various
omissions, substitutions, and modifications can be made without departing from the scope of the
invention. These embodiments and modifications thereof are included in the scope and the gist of
the invention, and are included in the invention described in the claims and the equivalent scope
thereof.
[0050]
DESCRIPTION OF SYMBOLS 1 ... Electronic device, 1a ... Housing | casing 2 ... Connector, 3 ...
LCD, 4 ... Touch panel, 6 ... Power switch, 7 ... LED, 10 ... CPU, 11 ... Bridge device, 12 ... Main
memory, 13 ... Graphics controller, DESCRIPTION OF SYMBOLS 14 ... Sound controller, 26 ...
Speaker, 16 ... SSD, 15 ... BIOS-ROM, 18 ... Embedded controller (EC), 19 ... Touch panel controller,
20 ... Docking detection part, 23 ... Power supply circuit, 22 ... AC adapter, 21 ... Battery 30 30 OS
31 video playback application 100 docking station 101 first connector 102 second connector
103 I / O controller 104 EEPROM.
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