KR20140085278A - Host apparatus, display apparatus, method for controlling of host apparatus and method for controlling of apparatus - Google Patents

Abstract

A host device is disclosed. The host device comprises a graphic processor configured to generate video data to be displayed on a display device, a first communication interface unit configured to transmit the generated video data to the display device via a first wireless communication method, and a second communication interface unit configured to receive at least one of control information which corresponds to a control command received through a touch screen, and status information of the display device from the display device, or to transmit status information of the host device to the display device, via a second wireless communication method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a host device, a display device, a control method of the host device, and a control method of the display device.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a host device, a display device, a control method of a host device, and a display device, and more particularly to a host device, A control method of the host apparatus, and a control method of the display apparatus.

In recent years, an apparatus for performing an operation and an apparatus for displaying an operation result are connected wirelessly to improve the mobility of the electronic apparatus. Specifically, the host device transmits the computed data such as image processing to the display device using the wireless communication technology, and the display device displays the received data.

Such a device can be freely used as a display device freely within a range supported by wireless communication by placing the host device in a fixed position, so that it is possible to give a user with a good mobility and a differentiated user experience.

However, in the related art, data is transmitted / received using only one wireless communication between the host device and the display device, which poses a problem in the following points. First, when low-speed data such as high-speed data such as video and control data are transmitted together, interference occurs between the two data, thereby affecting the resolution and performance of the video data.

Secondly, because both devices require separate power management, the user has to turn on both devices individually in order to use the system, and even if both devices are turned off, both devices must be powered off individually. For example, even when the host apparatus enters the power save mode, the display apparatus does not know that the host apparatus has entered the power save mode, and in such a case, the user does not operate any operation on the display apparatus, there was.

Accordingly, an object of the present invention is to provide a host device, a display device, a control method of a host device, and a control method of a display device, which can transmit and receive video data and control data individually using a plurality of wireless communication methods.

According to another aspect of the present invention, there is provided a host apparatus including a graphics processing unit for generating image data to be displayed on a display device, a display unit for displaying the generated image data on a first wireless communication system, And at least one of the control information corresponding to the control command input through the touch screen and the status information of the display device is received from the display device using the first wireless communication method Or to transmit the status information of the host device to the display device.

In this case, the host apparatus may include a plurality of operation modes, and the host apparatus may be configured to perform communication with the display apparatus only in the second wireless communication mode when the operation mode of the host apparatus is the power save mode, And a control unit for controlling the interface unit and the second communication interface unit.

In this case, when the operation mode of the host device is switched, the control unit controls the second communication interface unit such that status information corresponding to the operation mode of the switched host apparatus is transmitted to the display device by the second wireless communication system Can be controlled.

If the control unit receives the status information indicating that the operation mode of the display device has been changed from the display device in the second wireless communication mode, the control unit may change the operation mode of the host device Can be switched.

Meanwhile, the state information of the display device includes information on remaining battery power of the display device, and when the controller receives the battery remaining amount information from the display device in the second wireless communication method, The operation mode of the host device can be switched correspondingly.

Meanwhile, the first communication interface unit may transmit the generated video data and audio data corresponding to the video data together to the display device.

The first wireless communication method may include at least one of WiFi (Wireless LAN), UWB (Ultra Wideband), WiDi (WirelessDisplay), WiHD (WirelessHD), Wireless Home Digital Interface (WHDI), Miracast and Wireless Gigabit Alliance And may be one wireless communication method.

Meanwhile, the second wireless communication method may be a communication method of a lower power than the first wireless communication method.

Meanwhile, the second wireless communication method may be at least one of Bluetooth, Zigbee, and RF communication.

The host device may further include a power signal transmitting unit for transmitting a power signal for wirelessly charging the power of the display device.

Meanwhile, the display device wirelessly connectable with the host device according to the present embodiment includes a first communication interface unit for receiving image data from the host device in a first wireless communication manner, And a control unit adapted to control at least one of the control information corresponding to the control command input through the touch screen and the status information of the display apparatus using the second wireless communication scheme, And a second communication interface unit for transmitting status information of the host device to the host device or receiving status information of the host device from the host device.

In this case, the display device may include a plurality of operation modes, and the display device may be configured to perform communication with the host device only in the second wireless communication mode when the operation mode of the display device is the power save mode, And a control unit for controlling the interface unit and the second communication interface unit.

In this case, when the operation mode of the display device is switched, the control unit controls the display device to transmit the information on the operation mode of the display device to the host device in the second wireless communication mode, It is possible to control the second communication interface unit.

If the control unit receives status information indicating that the operation mode of the host device has been changed from the host device in the second wireless communication mode, the control unit may change the operation mode of the display device Can be switched.

The display device may further include a battery unit for supplying power to each configuration in the display device. The controller may be configured to transmit the battery remaining amount information of the battery unit to the host device as state information of the display device, The communication interface unit can be controlled.

Meanwhile, the first communication interface unit may receive audio data corresponding to the video data, and the user interface unit may display the received video data and output the received audio data.

The first wireless communication method may include at least one of WiFi (Wireless LAN), UWB (Ultra Wideband), WiDi (WirelessDisplay), WiHD (WirelessHD), Wireless Home Digital Interface (WHDI), Miracast and Wireless Gigabit Alliance And may be one wireless communication method.

Meanwhile, the second wireless communication method may be a communication method of a lower power than the first wireless communication method.

Meanwhile, the second wireless communication method may be at least one of Bluetooth, Zigbee, and RF communication.

According to another aspect of the present invention, there is provided a display apparatus comprising: a battery unit including a battery, a battery unit for supplying power to each configuration in the display apparatus using a power source charged in the battery, and a controller for receiving a power signal from the host apparatus, And a power signal receiver for charging the battery using a power signal.

According to another aspect of the present invention, there is provided a host apparatus including a keyboard unit, which is connectable to a display apparatus, includes: a graphics processing unit capable of processing image data corresponding to a first user input input through the keyboard unit; A first communication interface for transmitting the processed video data to the display device in a first wireless communication mode, and a second communication interface for transmitting control data for controlling the display device in response to a second user input inputted through the keyboard, 2 wireless communication method to the display device.

Meanwhile, a method of controlling a host device wirelessly connected to a display device having a touch screen according to the present invention includes generating image data to be displayed on the display device, transmitting the generated image data to a first wireless communication method To the display device, transmitting the generated video data to the display device in a first wireless communication mode, using a second wireless communication method to correspond to a control command received through the touch screen And receiving status information of the display device from the display device or transmitting status information of the host device to the display device.

In this case, the host apparatus may include a plurality of operation modes, and the control method may further include a step of, when the operation mode of the host apparatus is in the power saving mode, And controlling the operation mode of the first wireless communication system and the second wireless communication system.

Meanwhile, when the operation mode of the host device is changed, the step of transmitting the status information of the host device may include transmitting the information on the operation mode of the switched host device to the second wireless communication method To the display device.

Meanwhile, a method of controlling a display device connectable to a host device wirelessly according to the present invention includes receiving image data from the host device in a first wireless communication method, transmitting image data received through the first communication interface And displaying the generated video data on the touch screen of the display device using the second wireless communication method during a process of receiving the generated video data from the host device using the first wireless communication method, Transmitting status information of at least one of the control information and the status information of the display device to the host device or receiving status information of the host device from the host device.

1 is a block diagram showing the configuration of an electronic system according to an embodiment of the present invention;
FIG. 2 is a block diagram showing the configuration of the host apparatus of FIG. 1;
FIG. 3 is a block diagram showing the configuration of the display device of FIG. 2;
4 is a view for explaining the operation of an electronic system according to an embodiment of the present invention;
5 to 9 are views for explaining the operation of the electronic system,
FIG. 10 is a flowchart illustrating a control operation of the host apparatus according to an embodiment of the present invention,
11 is a flowchart illustrating a control operation of a display device according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a configuration of an electronic system according to an embodiment of the present invention.

Referring to FIG. 1, an electronic system 1000 includes a host device 100 and a display device 200.

The host device 100 generates image data to be displayed on the display device 200 and transmits the generated image data to the display device 200 through the first wireless communication method. The host apparatus 100 transmits and receives control data of the host apparatus 100 and control data of the display apparatus 200 to and from the display apparatus 200 through a second wireless communication scheme. When the operation mode of the host device is the power save mode, the host device 100 can perform communication with the display device 200 only by the second wireless communication method. The specific operation and configuration of the host apparatus 100 will be described later with reference to FIG.

The display device 200 is an apparatus operating depending on the host apparatus 100, and receives image data transmitted from the host apparatus 100 in a wireless manner and displays the image data. Specifically, the display apparatus 200 receives the image data from the host apparatus 100 in the first wireless communication system, and transmits the control data of the host apparatus 100 and the control data of the display apparatus 200 to the display apparatus 200, And the second wireless communication method. When the operation mode of the display device 100 is the power save mode, the display device 200 can perform communication with the host device 100 only through the second wireless communication method. The specific operation and configuration of the display device 200 will be described later with reference to FIG.

As described above, in the electronic system 1000 according to the present embodiment, video data and data other than video data are separately transmitted and received in a plurality of wireless communication systems, so that performance degradation due to interference between a high-speed signal and a low- have.

In addition, the electronic system 1000 according to the present embodiment can communicate with the host apparatus 100 and the display apparatus 200 in the second wireless communication mode even in the power saving mode, So that the operation state of the other apparatus can be changed. Accordingly, the user can change the operation state of both the host apparatus 100 and the display apparatus 200 by only turning on or off the power in one apparatus.

1, since the electronic system 1000 is a detachable PC, the display apparatus 200 is described as operating only depending on the host apparatus 100. However, in the implementation, (200) can be implemented in a form that can operate independently. In other words, embodiments such as the present invention may be reflected in an apparatus such as a general tablet, a PMP, a smart phone, etc., and may be implemented to operate as the display apparatus 200 according to the present embodiment.

2 is a block diagram showing the configuration of the host apparatus of FIG.

2, the host apparatus 100 includes a first communication interface unit 110, a second communication interface unit 120, a user interface unit 130, a storage unit 140, a graphics processing unit 150, (160). Such a host device is a main body of a conventional desktop PC. It may be the bottom configuration except the display of the notebook PC.

Here, the host apparatus 100 has a plurality of operation modes. Here, the plurality of operation modes include a normal mode in which all configurations in the host apparatus 100 operate and a power saving mode in which power consumption is lower than that in the normal mode. Meanwhile, although the host device 100 has been described as having only one power saving mode in the present embodiment, the host device 100 may include a plurality of power saving modes as an operation mode at the time of implementation.

The first communication interface unit 110 transmits the image data through the first wireless communication system. Specifically, the first communication interface unit 110 may be a wireless LAN, a wireless LAN, a UWB, a WirelessDisplay, a WiHD, a Wireless Home Digital Interface (WHDI), a Miracast and a Wireless Gigabit Alliance (Wigig) The image data generated by the graphic processing unit 150 to be described later can be transmitted to the display device 200. [ At this time, the first communication interface unit 110 may transmit the voice data together with the image data to the display device 200. [

The second communication interface unit 120 receives the control command through the second wireless communication method. Specifically, the second communication interface unit 120 can receive the user control command received on the display device 200 through the second wireless communication method.

The second communication interface unit 120 transmits / receives the control data to / from the display device 200 through the second wireless communication method. The control data is data transmitted between the host apparatus 100 and the display apparatus 200 except for the video data and the audio data and includes user control commands input from the user on the display apparatus 200 or the host apparatus 100, A device control command corresponding to the received user control command, status information of the host device, status information of the display device, and the like.

Accordingly, the second communication interface unit 120 can transmit and receive the status information of the host apparatus 100 and the status information of the display apparatus 200 according to the second wireless communication method. Here, the status information may be information on the operation modes of the host apparatus and the display apparatus, the power state of the display apparatus (specifically, the battery remaining amount information), and the like. The second wireless communication scheme may be a Bluetooth, Zigbee, or RF communication scheme with a lower power / lower speed / lower capacity wireless communication scheme than the first wireless communication scheme.

The user interface unit 130 includes a plurality of function keys that a user can set or select various functions supported by the host apparatus 100 and can display various types of information provided by the host apparatus 100. [ The user interface unit 130 may be implemented as a device that simultaneously implements inputs and outputs, such as a touch screen, or a combination of an input device such as a mouse or a keyboard and a display device that displays an image. In this case, the user interface unit 130 may include a keyboard unit, and may receive a user control command from the user through the keyboard unit.

Although the electronic system 1000 of the present invention is shown and described as displaying an image on the display device 200, it is also possible to use a configuration that displays the same or different image as the image displayed on the display device 200 at the time of implementation The host apparatus 100 may be provided.

The storage unit 140 stores a program for driving the host apparatus 100. Specifically, the storage unit 140 may store a program, which is a set of various commands required when the host apparatus 100 is driven. Here, the program includes an application program for providing an application program as well as an application program for providing a specific service.

The storage unit 140 may be implemented as a storage medium in the host apparatus 100 and an external storage medium such as a removable disk including a USB memory or a Web server through a network.

The graphic processing unit 150 generates image data to be displayed on the display device 200. [ Specifically, the graphic processing unit 150 can generate image data corresponding to the user control command input through the display device 200. FIG. Here, the video data may be real-time streaming data.

In the present embodiment, the graphic processor 150 generates only video data. However, in implementation, the graphics processor 150 may generate audio data, and may store video streaming data having video data and audio data together Can be generated.

The control unit 160 performs control for each configuration in the host apparatus 100. Specifically, the control unit 160 determines the operation mode of the host apparatus 100. [ More specifically, when there is no input by the user for a predetermined time, and the operation is not performed for a preset time, the controller 160 may determine the operation mode of the host device 100 as the power saving mode. When the controller 160 receives the status information indicating that the operation mode of the display device 200 is changed to the power save mode through the second communication interface 120, the controller 160 sets the operation mode of the host device 100 to the power save mode You can decide.

On the other hand, when receiving a wake-up command from the user via the user interface unit 130 in the power saving mode or transmitting status information indicating that the operation mode of the display device 200 is changed from the power saving mode to the normal mode, 120, the control unit 160 can determine the operation mode of the host device 100 as the normal mode. In the above description, the operation mode of the host apparatus 100 is switched from the normal mode or the normal mode to the power saving mode in the power saving mode. However, when the power mode of the user changes the operation mode from the power off mode to the normal mode The same can be applied.

In addition, the controller 160 may determine the operation mode of the host device 100 according to the battery status of the display device 200. Specifically, when information on the battery remaining amount of the display device 200 is received as status information through the second communication interface 120 and the remaining battery remaining amount is smaller than a predetermined remaining amount, The power saving mode can be determined. When the battery of the display device 200 is switched to the charged state after the conversion of the operation mode of the host device 100 to the power saving mode by the above determination, the controller 160 controls the operation of the host device 100 The operation mode can be determined to be the normal mode again. Information indicating that the battery of the display device 200 has been switched to the charging state can be received as the above-described status information.

The control unit 160 can control each configuration of the host apparatus 100 in correspondence with the determined operation mode. When the operation mode of the host apparatus 100 is changed to the power save mode, the controller 160 controls the first communication interface unit 110 and the second communication interface unit 110 to perform communication with the display device 200 using only the second wireless communication method, The communication interface unit 120 can be controlled. That is, the first communication interface unit 110 may be controlled not to operate and only the second communication interface unit 120 may operate. At this time, the control unit 160 may control the storage unit 140 and the graphics processing unit 150 not to operate. That is, in the power saving mode, the power consumption in the storage unit 140 and the graphics processor 150 can be prevented or low power consumption can be controlled.

For example, when the user inputs the power-off command through the user interface unit 130 or enters the power-save mode enter command, the control unit 160 determines whether each configuration of the host apparatus 100 is in the power- Off mode) of the power supply. The control unit 160 may control the second communication interface unit 120 to notify that the operation mode of the host device 100 has been changed. When this information is transmitted to the display device 200, the operation mode of the display device 200 can be switched to the power saving mode or the power off mode. As described above, the host device 100 according to the present embodiment transmits whether the operation mode of the host device 100 is changed to the display device 200 as state information. The user can operate the host device 100 only by operating one device 100 and the display device 200 can be collectively changed.

When the operation mode of the host apparatus 100 is changed to the normal mode, each configuration in the host apparatus 100 can be controlled so that the configurations not operating in the power saving mode are woken up.

The control unit 160 controls the second communication interface unit 120 to transmit the operation mode of the converted host device 100 as status information to the display device 200 when the operation mode of the host device 100 is switched. can do.

For example, when the host device 100 is in the power saving mode or the power off mode, when receiving a wake-up command from the user through the user interface unit 130, the controller 160 controls the host device 100 to perform a wake- So that the operation mode of the host apparatus 100 is switched to the normal mode. That is, the control unit 160 may control the host apparatus 100 to boot. When the operating system stored in the storage unit 140 is loaded into the volatile memory and booted, the graphics processor 130 generates the video data corresponding to the booting process and the user interface window supported by the operating system, And can control the first communication interface unit 110 to transmit the generated image data to the display device 200 in a wireless manner.

At the same time, the control unit 160 transmits to the display device 200 through the second communication interface unit 120 that the operation mode of the control unit 160 has been changed, and the display device 200 is also woken up without any additional operation by the user .

Upon receiving the user control command through the user interface unit 130 (specifically, the keyboard unit), the controller 160 controls the graphic processor 150 to generate image data corresponding to the input first user control command can do. The control unit 160 may control the first communication interface unit 110 to transmit the image data generated by the graphic processing unit 150 to the display device 200. [ Meanwhile, the user control command input through the user interface unit 130 may include a second user control command (e.g., a power off command, an operation mode switching command such as a power on command) for controlling the operation of the display device 200 The control unit 160 may control the second communication interface unit 120 such that the control data corresponding to the received second user control command is transmitted to the display device 200. [

When the user inputs a control command through the user interface unit 230 (specifically, a touch screen) provided on the display device 200, the display device 200 displays the received control command as control data, (100). Accordingly, when the control unit 160 receives the control data corresponding to the user control command from the display device 200 through the second communication interface unit 120, the control unit 160 generates the graphic data corresponding to the received user control command The processing unit 150 can be controlled.

For example, when a playback command for a movie file stored in the host apparatus 100 is input through the user interface unit 130, the controller 160 controls the streaming method such that the video data stored in the storage unit 140, And the first communication interface unit 110 so that the first communication interface unit 110 and the second communication interface unit 110 can be generated and transmitted to the display device 200. [ If a video stop command is input through the touch screen of the user display device 200 while the streaming video corresponding to the movie file is displayed on the display device 200 through the above process, And transmits the command to the host apparatus 100 as control data. In this case, the host device 100 may control the graphic processing unit 150 and the first communication interface unit 110 so that the stopped image is displayed on the display device 200 side in accordance with the received image stop command.

In the above embodiment, the streaming video is described as one content (or a result of driving one program). However, the streaming video may be a result of a plurality of contents. Specifically, the user can simultaneously run a plurality of application programs installed in the operating system of the host apparatus 100. [ For example, when a user performs a second application program for playing music contents while performing a first application program for surfing the Internet (such an execution command is transmitted to the user interface unit 230 of the display device 200 The control unit 160 can receive a second application program during the operation of the first application program, or receive the second application program during the operation of the first application program It can be driven at the same time. Accordingly, the control unit 160 can generate sound data according to the driving result of the second application program and the user interface window (i.e., image data) for surfing the Internet according to the driving result of the first application program, It is possible to control the graphics processing unit 150 to generate real-time streaming data having video data and audio data. The control unit 160 may control the second communication interface unit 120 to transmit the generated real-time streaming data to the display device 200 through the first wireless communication scheme.

As described above, the host device 100 according to the present embodiment separately transmits and receives video data and data other than video data through a plurality of communication methods, thereby minimizing performance degradation due to interference between a high-speed signal and a low-speed signal .

In addition, the host device 100 according to the present embodiment can perform power saving processing on the configuration related to the first wireless communication when the first wireless communication is not performed, thereby realizing low power. In addition, even when the first wireless communication is not operated, communication with the display device 200 can be performed using the second wireless communication scheme with low power, 100 can be switched.

3 is a block diagram showing the configuration of the display device of Fig.

3, the display device 200 includes a first communication interface unit 210, a second communication interface unit 220, a user interface unit 230, a battery unit 240, and a controller 250 .

Here, the display device 200 has a plurality of operation modes. Here, the plurality of operation modes include a normal mode in which all configurations in the display device 200 operate and a power saving mode in which power consumption is lower than the normal mode. Meanwhile, although the display device 200 has been described as having only one power saving mode in the present embodiment, the display device 200 may include a plurality of power saving modes as an operation mode at the time of implementation.

The first communication interface unit 210 receives the image data through the first wireless communication system. Specifically, the first communication interface unit 210 may be a wireless LAN, a wireless LAN, a UWB, a WirelessDisplay, a WiHD, a Wireless Home Digital Interface (WHDI), a Miracast, and a Wireless Gigabit Alliance The first communication interface unit 110 of the host apparatus 100 can receive the image data transmitted through the first communication interface unit 110. [ At this time, the first communication interface unit 210 can simultaneously receive the audio data together with the video data. At this time, the received data may be real-time streaming data of the HDMI interface type.

The second communication interface unit 220 transmits the control command through the second wireless communication system. The second communication interface 220 may transmit the user control command received through the user interface 230 to the second communication interface 120 of the host 100. [

The second communication interface unit 220 transmits and receives control data to and from the host device 100 in a second wireless communication scheme. The control data is data transmitted between the host apparatus 100 and the display apparatus 200 except for the video data and the audio data and includes user control commands input from the user on the display apparatus 200 or the host apparatus 100, A device control command corresponding to the received user control command, status information of the host device, status information of the display device, and the like. The second communication interface unit 220 transmits the status information of the host apparatus 100 and the status information of the display apparatus 200 to the second communication interface unit 120 of the host apparatus 100, It can transmit and receive. Here, the status information may be information on the operation modes of the host apparatus 100 and the display apparatus 200, the power state of the display apparatus 200 (specifically, battery remaining amount information), and the like. The second wireless communication scheme may be a Bluetooth, Zigbee, or RF communication scheme with a lower power / lower speed / lower capacity wireless communication scheme than the first wireless communication scheme.

The user interface unit 230 includes a plurality of function keys for allowing the user to set or select various functions supported by the display device 200 and may display various information provided by the display device 200. The user interface unit 230 may be implemented as an input / output device such as a touch screen, or may be implemented by a combination of an input device such as a keyboard and a mouse and a display device for displaying an image. Preferably, the user interface unit 230 of the display device 200 is implemented as a touch screen.

The user interface unit 230 displays the received image data. Specifically, the user interface unit 230 can display image data received through the first communication interface unit 210. On the other hand, when the data combining the video data and the audio data is received through the first communication interface unit 210, that is, when the video streaming data is received, the user interface unit 230 converts the received video streaming data into video streaming data And voice streaming data, displays an image corresponding to the separated video streaming data, and outputs audio corresponding to the separated voice streaming data at the same time. The video streaming data and the audio streaming data may be data according to one content or data according to a plurality of contents. That is, the video streaming data may be an output result of an application program related to Internet surfing, and the voice streaming data may be an output result of an application program related to sound source data playback.

The user interface unit 230 displays status information of the host apparatus 100. [ Specifically, when receiving the status information indicating that the operation mode of the host apparatus 100 has been switched through the second communication interface unit 220, the user interface unit 230 determines that the operation mode of the host apparatus 100 has been changed Can be displayed. At this time, the user interface unit 230 may indicate that the operation mode of the display device 200 is switched according to the switching of the operation mode of the host device 100. [

The user interface unit 230 displays the state of the battery. Specifically, the user interface 230 receives information on the state of the battery (e.g., whether the battery is being charged, remaining charge of the current battery, remaining charge of the battery or the like, Can be displayed.

The battery unit 240 supplies power for each configuration in the display device 200. Specifically, the battery unit 240 includes a battery for storing power and a sensing unit for sensing a state of the battery. The battery unit 240 may be configured to perform power supply according to the operation mode of the display device 200 under the control of the controller 250, which will be described later. Meanwhile, the battery unit 240 may be charged in a wireless charging mode. This will be described later with reference to FIG.

The control unit 250 performs control for each configuration in the display device 200. Specifically, the control unit 250 determines an operation mode of the display device 200. More specifically, the controller 250 may determine the operation mode of the display device 200 to be the power saving mode when there is no input from the user for a preset time or when the operation is not performed for a preset time. When the control unit 250 receives the status information indicating that the operation mode of the host apparatus 100 is changed to the power save mode through the second communication interface unit 220, the control unit 250 determines the operation mode of the display apparatus 200 as the power save mode .

On the other hand, when receiving a wake-up command from the user through the user interface unit 230 in the power saving mode or transmitting status information indicating that the operation mode of the host device 100 is changed from the power saving mode to the normal mode, 220, the control unit 250 can determine the operation mode of the display device 200 as the normal mode.

In addition, the controller 250 may determine the operation mode of the display device 200 according to the battery state of the display device 200. Specifically, if the battery remaining amount of the display device 200 is less than the predetermined remaining amount, the control unit 250 may determine the operation mode of the display device 200 as the power saving mode. The controller 250 converts the operating mode of the display device 200 into the power saving mode and converts the battery of the display device 200 into the charged state after the conversion. The operation mode can be determined to be the normal mode again.

The control unit 250 may control each configuration of the display device 200 to correspond to the determined operation mode. The control unit 250 controls the first communication interface unit 210 and the second communication interface unit 230 to perform communication with the host device 100 only by the second wireless communication method, The communication interface unit 220 can be controlled. That is, the first communication interface unit 210 is controlled not to operate and only the second communication interface unit 220 is operated.

When the operation mode of the display device 200 is changed to the normal mode, each configuration in the display device 200 can be controlled so that the configurations not operating in the power saving mode are woken up.

When the operation mode of the display device 200 is switched, the controller 250 controls the second communication interface 220 to transmit the operation mode of the converted display device 200 as status information to the host device 100 can do.

The control unit 250 controls the first communication interface unit 210 and the user interface unit 230 so that the received video data is displayed on the user interface unit 230 when the video data is received through the first communication interface unit 210. [ Can be controlled.

When receiving the user control command through the user interface unit 230, the control unit 250 controls the second communication interface unit 220 to transmit the received user control command as the control data to the host device 100 have.

As described above, the display device 200 according to the present embodiment divides video data and data other than video data by a plurality of communication methods, thereby minimizing performance degradation due to interference between a high-speed signal and a low-speed signal .

In addition, when the first wireless communication is not performed, the display device 200 according to the present embodiment can perform power saving processing on the configuration related to the first wireless communication, thereby realizing low power consumption. In addition, even when the first wireless communication is not operated, communication with the host apparatus 100 can be performed using the second wireless communication scheme with low power. Thus, the display apparatus 200 Can be switched over.

4 is a diagram for explaining the operation of the electronic system according to an embodiment of the present invention.

4, the electronic system 1000 includes a host device 100 and a display device 200. The host device 100 and the display device 200 are connected to each other via a first wireless communication method and a second wireless communication method To transmit and receive various data. Specifically, the video data generated by the host device is transmitted to the display device in a first wireless communication method of high speed / high capacity / high power, and the control data and status information other than the video data are transmitted through the second wireless communication with low speed / low capacity / And is transmitted / received between the host apparatus 100 and the display apparatus 200 in a method.

The host apparatus 100 has a plurality of operation modes, and has a first operation configuration that operates only in the normal mode and a second operation configuration that operates even in the power save mode.

The first operation configuration is configured to operate only in the normal mode and includes the first communication interface section 110, the graphics processing section 150, the controller 162, and the chipset 163. The configuration of the first communication interface unit 110 and the graphic processing unit 150 is the same as that of FIG. 2, and a description thereof will be omitted.

The main microcomputer 161, the sub-microcomputer 164, the first functional unit 122, the second functional unit 123, and the third functional unit 123. The second communication interface unit 120, , And a third function unit (124). The configuration of the second communication interface unit 120 is the same as that of FIG. 2, and a description thereof will be omitted.

The control unit 160 may be implemented by a main microcomputer 161, a controller 162, a chipset 163, and a submicrocomputer 164. The functions of the main microcomputer, the controller, and the chipset in the electronic device are widely known, and a detailed description thereof will be omitted.

The sub microcomputer 164 controls the operation of the second communication interface unit 120. [ Specifically, the second communication interface unit 120 can be controlled to transmit and receive status information to and from the display device 200 in the normal mode and the power saving mode.

The sub-microcomputer 164 can control the functional operation corresponding to the status information received through the second communication interface unit 120 in the power saving mode. For example, when the display device 200 receives status information indicating that the display device 200 has been switched to the normal mode through the second communication interface 120 in the power save mode, the sub microcomputer 164 controls the functional units 122 and 123 , 124) to switch the operation mode of the host device 100 to the normal mode. The submicrocomputer 164 receives commands for switching from the user to the normal mode in the power saving mode through the buttons provided in the host apparatus 100. The submicrocomputer 164 uses the functions of the functional units 122, The second communication interface unit 120 can be controlled so that the operation mode of the host device 100 is switched to the normal mode and the status information indicating that the operation mode of the host device 100 is switched to the normal mode is transmitted.

The plurality of function units 122, 123 and 124 are configured to perform specific functions under the control of the sub-microcomputer 164, and for example, functions of receiving a user command (power on command, power off command, A mode switching command, etc.), a function of transmitting the status information of the host apparatus 100 to the display apparatus 200, a function of receiving the status information of the display apparatus 200, a function of switching the operation mode of the host apparatus 100 And so on.

In the illustrated example, the main microcomputer 161 is operated in the power saving mode. However, the main microcomputer 161 may be implemented in a first operation mode that operates only in the normal mode.

The display device 200 has a plurality of operation modes, a third operation configuration that operates only in the normal mode, and a fourth operation configuration that operates in the power save mode.

The third operation configuration is configured to operate only in the normal mode and includes a first communication interface unit 210, user interface units 231 and 232, and a controller 252. Here, the first communication interface unit 210 and the user interface units 231 and 232 are the same as those in FIG. 3, and a detailed description thereof will be omitted.

The main microcomputer 251, the sub-microcomputer 253, the first functional unit 222, the second functional unit 223, and the second functional unit 223. The second communication interface unit 220, And a battery unit 240. Here, the second communication interface unit 220 and the battery unit 240 are not described in detail.

The control unit 250 may be implemented by a main microcomputer 251, a controller 252, and a sub-microcomputer 253. The functions of the main microcomputer and the controller in the electronic device are widely known, and a detailed description thereof will be omitted.

The controller 250 does not correspond to a general CPU on an electronic device. That is, the computing process according to driving of the application program in the electronic system 1000 is performed on the host device 100 side, and in the display device 200, the image data according to the result of the arithmetic processing or the data And performs display or output. However, the electronic system 1000 according to the present embodiment can receive a user's control command from the display device 200 side and can transmit the received control command to the host device 100. [ In this regard, the control unit 250 according to the present embodiment has a function of controlling to display the image data transmitted from the host device 100, a function of transmitting the user control command inputted through the touch screen to the host device 100 . In the above description, the display device 200 does not have a separate arithmetic function. However, the present invention is not limited thereto. In actuality, when the display device 200 is operated depending on the host device 100, It is also possible to implement it. That is, the display device may be provided with a separate CPU and an operating system.

The sub-microcomputer 253 controls the operation of the second communication interface unit 220. Specifically, the second communication interface unit 220 can be controlled to transmit / receive status information to / from the host device 100 in the normal mode and the power saving mode.

The sub-microcomputer 253 can control the function operation corresponding to the status information received through the second communication interface unit 220 in the power saving mode. For example, when the host device 100 receives status information indicating that the host device 100 has been switched to the normal mode through the second communication interface 220 in the power saving mode, the sub microcomputer 253 transmits the functional units 222 and 223 May be used to switch the operation mode of the display device 200 to the normal mode. The submicrocomputer 253 receives a command for switching from the user to the normal mode in the power saving mode through a button provided on the display device 200. The submicrocomputer 253 uses the functions of the functional sections 222 and 223, The second communication interface unit 220 may be controlled so that the operation mode of the display device 200 is switched to the normal mode and the state information indicating that the operation mode of the display device 200 is switched to the normal mode is transmitted.

The plurality of function units 222 and 223 are configured to perform a specific function under the control of the sub-microcomputer 253 and include a function of receiving a user command (a power on command, a power off command, A function of transmitting the status information of the display device 200 to the host device 100, a function of receiving the status information of the host device 100, a function of switching the operation mode of the display device 200, Lt; / RTI >

In the illustrated example, the main microcomputer 251 is operated in the power saving mode. However, the main microcomputer 251 may be configured to operate only in the normal mode in the third operation configuration at the time of implementation.

Meanwhile, the display device according to the present embodiment is a portable device and includes a battery. Such a battery can be charged not only by a wired power connector but also by a wireless charging technique. The wired system is a well-known technology, and a detailed description thereof will be omitted, and a wireless charging system will be described below.

In the case of the wireless charging system, the host apparatus 100 may further include a power signal transmitting unit 170. [

The power signal transmitting unit 170 transmits a power signal for wirelessly charging the power of the display device. Specifically, the power signal transmitting unit 170 transmits the electric power using the at least one of electromagnetic induction technology using radio frequency identification (RFID), radio wave reception using radio waves, and electromagnetic resonance using resonance phenomenon, 200 to charge the battery.

At this time, the control unit 160 may control the power signal transmitting unit 170 in consideration of the display device 200, the distance, and the battery state of the display device 200. If it is determined that the battery state of the display device 200 received through the second communication interface unit 120 is in a state requiring charging, the controller 160 transmits a power signal for charging the battery of the display device So that the power signal transmitting unit 170 can be controlled. On the other hand, even when the battery state requires charging, if the distance to the display device 200 is more than a predetermined distance, the controller 160 can control the power signal transmitter 170 so that the power signal is not transmitted have. At this time, the controller 160 controls the graphic processor 150 to generate image data including the message so that a message indicating that the distance from the host apparatus 100 should be close to be displayed on the display device 200 Can be controlled.

In the case of the wireless charging method, the display device 200 may further include a power signal receiving unit 260. [

The power signal receiving unit 260 receives the power signal from the host device 100 and charges the battery of the battery unit using the received power signal. Specifically, the power signal receiver 260 receives the power signal from the host device 100 (at least one of the electromagnetic induction technique using RFID (radio frequency identification), the electromagnetic wave propagation technique using radio waves, and the electromagnetic resonance technology using resonance phenomenon) To receive the power signal transmitted from the base station. The power signal receiving unit 260 can charge the battery using the received power signal.

At this time, the control unit 250 may control the power signal receiving unit 260 in consideration of the battery state of the display device 200 and the like. Specifically, when the battery in the display device 200 is in a buffer state, control is performed to control the power signal receiver 260 to stop charging the battery, and control data for stopping the transmission of the power signal is transmitted to the host device 100 2 communication interface unit 220 in accordance with the present invention.

5 to 9 are diagrams for explaining the operation of the electronic system.

Referring to FIG. 5, when a user presses a power button through the user interface unit 130 of the host apparatus 100, the host apparatus 100 is powered on. At this time, the second communication interface unit 120 of the host device 100 transmits status information indicating that the host device 100 is powered on to the display device 200. [ Accordingly, the display device 200 is turned on according to the received status information.

Referring to FIG. 6, when the user presses the power button through the user interface unit 230 of the display device 200, the power of the display device 200 is turned on. At this time, the second communication interface unit 220 of the display device 200 transmits the status information indicating that the display device 200 is powered on to the host device 100. [ Accordingly, the host apparatus 100 is powered on in accordance with the received status information.

7, when the host device 100 determines to switch the operation mode of the host device 100 to the power saving mode because the user does not input the control command over the predetermined time, the operation of the host device 100 The mode is switched to the power saving mode. At this time, the host apparatus 100 transmits the switching of the operation mode of the host apparatus 100 to the display apparatus 200 as state information. Accordingly, the display apparatus 200 switches the operation mode of the display apparatus 200 to the power saving mode Mode.

8, when the operation mode of the host apparatus 100 is switched from the power saving mode to the normal mode by the user's control command or the like, the second communication interface unit 120 of the host apparatus 100 transmits the host apparatus 100 To the display device 200. The display device 200 displays the control data in the normal mode. Accordingly, the display device 200 switches the operation mode of the display device 200 from the power saving mode to the normal mode according to the received control data.

Referring to FIG. 9, the display device 200 provides the status of the battery mounted on the display device to the host device 100 as status information. The host device 100 displays the status of the battery mounted on the display device 200, Various operations can be performed. For example, when the remaining amount of the battery of the display device 200 becomes equal to or less than the predetermined remaining amount, the operation mode of the host apparatus 100 can be switched to the power saving mode.

10 is a flowchart illustrating a control operation of the host apparatus according to an embodiment of the present invention.

Referring to FIG. 10, image data to be displayed on the display device is generated (S1010). Specifically, the host apparatus 100 may generate image data to be displayed on the display device 200 as real-time streaming data. At this time, the host apparatus 100 may generate streaming data including audio data.

Then, the generated image data is transmitted to the display device by the first wireless communication method (S1020). Here, the first wireless communication scheme may be a wireless communication scheme such as WiFi (Wireless LAN), UWB (Ultra Wideband), WiDi (WirelessDisplay), WiHD (WirelessHD), Wireless Home Digital Interface (WHDI), Miracast and Wireless Gigabit Alliance Communication method.

During transmission of the image data to the display device, the control data is transmitted / received to / from the display device through the second wireless communication method (S1030). Here, the second wireless communication method may be a bluetooth, a Zigbee, or an RF communication method using a low power / low speed / low capacity wireless communication method than the first wireless communication method. The control data is data transmitted between the host apparatus 100 and the display apparatus 200 except for the video data and the audio data and includes user control commands input from the user on the display apparatus 200 or the host apparatus 100, A device control command corresponding to the received user control command, status information of the host device, status information of the display device, and the like.

When the operation mode of the host device is switched to the power saving mode during the above operation, the operation states of the first wireless communication method and the second wireless communication method are controlled so that communication with the display device is performed only by the second wireless communication method (S1040) . Specifically, the operation mode of the host apparatus can be determined in consideration of whether or not the user inputs the control command, whether the operation is performed, and the operation mode of the display apparatus. When the determined operation mode of the host device is the power saving mode, the operation state of the first wireless communication method can be deactivated so that communication with the display device is performed only by the second wireless communication method.

Therefore, in the control method of the host apparatus according to the present embodiment, video data and data other than video data are separately transmitted and received in a plurality of wireless communication systems, so that performance degradation due to interference between a high-speed signal and a low- have. In addition, when the first wireless communication is not performed, the configuration related to the first wireless communication can be processed for power saving, thereby realizing low power consumption. In addition, even when the first wireless communication is not operated, communication with the display device can be performed using the second wireless communication scheme with low power, and the operation mode of the host device can be switched . The control method of the host apparatus as shown in Fig. 10 can be executed on the host apparatus having the configuration of Fig. 2, and also on the host apparatus having other configurations.

Further, the control method of the host apparatus as described above can be implemented as a program (or an application) including an executable algorithm that can be executed in a computer, and the program is stored in a non-transitory computer readable medium, As shown in FIG.

A non-transitory readable medium is a medium that stores data for a short period of time, such as a register, cache, memory, etc., but semi-permanently stores data and is readable by the apparatus. In particular, the various applications or programs described above may be stored and provided on non-volatile readable media such as CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM,

11 is a flowchart illustrating a control operation of a display device according to an embodiment of the present invention.

Referring to FIG. 11, first, image data is received from a host apparatus in a first wireless communication scheme (S 1110). Here, the first wireless communication scheme may be a wireless communication scheme such as WiFi (Wireless LAN), UWB (Ultra Wideband), WiDi (WirelessDisplay), WiHD (WirelessHD), Wireless Home Digital Interface (WHDI), Miracast and Wireless Gigabit Alliance Communication method. At this time, the first wireless communication method can receive the audio data together with the video data.

During the process of receiving the video data through the first wireless communication method, the control data is transmitted / received to / from the host device through the second wireless communication method (S1120). Here, the second wireless communication method may be a bluetooth, a Zigbee, or an RF communication method using a low power / low speed / low capacity wireless communication method than the first wireless communication method. The status information may be information on an operation mode of the host device and the display device, a power state of the display device (specifically, battery remaining amount information), and the like.

Then, the image data received through the first communication interface unit is displayed (S1130). Specifically, the received video data of the real-time streaming method can be displayed on the user interface unit of the display device. On the other hand, when the audio data and the video data are received together, the received data may be separated into audio data and video data, separated video data may be displayed, and separated audio data may be output by voice.

If the operation mode of the display device is the power saving mode, the operation state of the first wireless communication method and the second wireless communication method is controlled so that communication with the display device is performed only by the second wireless communication method (S1140). Specifically, the operation mode of the display device can be determined in consideration of whether or not the user inputs the control command, whether the operation is performed, and the operation mode of the host device. When the determined operation mode of the display device is the power saving mode, the operation state of the second wireless communication method can be deactivated so that communication with the host device is performed only by the second wireless communication method.

Therefore, the control method of the display apparatus according to the present embodiment divides video data and data other than the video data by a plurality of communication methods, thereby minimizing performance degradation due to interference between the high-speed signal and the low-speed signal . In addition, when the first wireless communication is not performed, the configuration related to the first wireless communication can be processed for power saving, thereby realizing low power consumption. In addition, even when the first wireless communication does not operate, communication with the host apparatus can be performed using the second wireless communication scheme with low power. Thus, the operation mode of the display apparatus can be switched . The control method of the display device as shown in Fig. 11 can be executed on a display device having the configuration of Fig. 3, or on a display device having other configurations.

Further, the control method of a display device as described above may be implemented as a program (or an application) including an executable algorithm that can be executed in a computer, and the program may be stored in a non-transitory computer readable medium, As shown in FIG.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

1000: electronic system 100: host device
110: first communication interface unit 120: second communication interface unit
130: user interface unit 140:
150: graphic processing unit 160:
200: Display device 210: First communication interface
220: second communication interface unit 230: user interface unit
240: battery unit 250:

Claims (25)

A host device capable of wirelessly connecting with a display device having a touch screen,
A graphic processor for generating image data to be displayed on the display device;
A first communication interface for transmitting the generated image data to the display device through a first wireless communication scheme; And
Receiving at least one of the control information corresponding to the control command input through the touch screen and the status information of the display device from the display device using the second wireless communication method, And a second communication interface for transmitting the first communication interface to the display device. The method according to claim 1,
The host device includes a plurality of operation modes,
The host apparatus includes:
And a controller for controlling the first communication interface and the second communication interface to perform communication with the display device only in the second wireless communication mode when the operation mode of the host device is the power saving mode, Lt; / RTI > 3. The method of claim 2,
Wherein,
And controls the second communication interface unit such that status information corresponding to the operation mode of the switched host apparatus is transmitted to the display apparatus by the second wireless communication system when the operation mode of the host apparatus is switched. Device. 3. The method of claim 2,
Wherein,
Wherein the control unit switches the operation mode of the host apparatus in accordance with the operation mode of the switched display apparatus when state information indicating that the operation mode of the display apparatus has been switched is received from the display apparatus by the second wireless communication system Lt; / RTI > 3. The method of claim 2,
The status information of the display device includes:
A remaining battery level information of the display device,
Wherein,
Wherein the host device switches the operation mode of the host device in accordance with the received remaining battery level information when the remaining battery level information is received from the display device in the second wireless communication mode. The method according to claim 1,
Wherein the first communication interface unit comprises:
And transmits the generated video data and audio data corresponding to the video data together to the display device. The method according to claim 1,
The first wireless communication method includes:
A radio communication method of at least one of WiFi (Wireless LAN), UWB (Ultra Wide Band), WiDi (WirelessDisplay), WiHD (WirelessHD), WHDI (Wireless Home Digital Interface), Miracast and Wigig (Wireless Gigabit Alliance) Host device. The method according to claim 1,
The second wireless communication method includes:
Is a communication scheme of a lower power than the first wireless communication scheme. The method according to claim 1,
The second wireless communication method includes:
Wherein the wireless communication method is at least one of Bluetooth, Zigbee, and RF communication. The method according to claim 1,
And a power signal transmitting unit for transmitting a power signal for wirelessly charging the power of the display device. A display device connectable to a host device wirelessly,
A first communication interface unit for receiving image data from the host apparatus in a first wireless communication scheme;
A user interface unit for displaying image data received through the first communication interface unit using a touch screen; And
Transmitting at least one of the control information corresponding to the control command input through the touch screen and the status information of the display device to the host device by using the second wireless communication method, And a second communication interface for receiving from the host device. 12. The method of claim 11,
The display device includes a plurality of operation modes,
The display device includes:
And a controller for controlling the first communication interface and the second communication interface to perform communication with the host device only in the second wireless communication mode when the operation mode of the display device is the power saving mode. 13. The method of claim 12,
Wherein,
When the operation mode of the display device is changed, the second communication interface unit is controlled so that the information on the operation mode of the switched display device is transmitted to the host device as the status information of the display device by the second wireless communication method And the display device. 13. The method of claim 12,
Wherein,
When the host apparatus receives the status information indicating that the operation mode of the host apparatus has been switched from the host apparatus in the second wireless communication mode, the operation mode of the display apparatus is switched in accordance with the operation mode of the switched host apparatus / RTI > 13. The method of claim 12,
And a battery unit for supplying power to each configuration in the display apparatus,
Wherein,
And controls the second communication interface unit to transmit the battery remaining amount information of the battery unit to the host apparatus as state information of the display apparatus. 12. The method of claim 11,
Wherein the first communication interface unit comprises:
Receiving audio data corresponding to the video data together,
The user interface unit,
And displays the received video data and outputs the received audio data. 12. The method of claim 11,
The first wireless communication method includes:
A radio communication method of at least one of WiFi (Wireless LAN), UWB (Ultra Wide Band), WiDi (WirelessDisplay), WiHD (WirelessHD), WHDI (Wireless Home Digital Interface), Miracast and Wigig (Wireless Gigabit Alliance) Display device. 12. The method of claim 11,
The second wireless communication method includes:
Is a communication scheme of a lower power than the first wireless communication scheme. 12. The method of claim 11,
The second wireless communication method includes:
Wherein the wireless communication method is at least one of Bluetooth, Zigbee, and RF communication. 12. The method of claim 11,
A battery unit including a battery and supplying power to each configuration in the display device using a power source charged in the battery; And
And a power signal receiver for receiving a power signal from the host device and charging the battery using the received power signal. A host apparatus connectable to a display device and provided with a keyboard unit,
A graphic processing unit capable of processing image data corresponding to a first user input inputted through the keyboard unit;
A first communication interface unit capable of transmitting image data processed by the graphic processing unit to the display device through a first wireless communication method; And
And a second communication interface unit capable of transmitting control data for controlling the display device in response to a second user input inputted through the keyboard unit, to the display device by a second wireless communication method. A control method of a host device wirelessly connectable with a display device having a touch screen,
Generating image data to be displayed on the display device;
Transmitting the generated image data to the display device through a first wireless communication method;
The control information corresponding to the control command received through the touch screen and the status of the display device using the second wireless communication method during the process of transmitting the generated video data to the display device through the first wireless communication method, Receiving at least one piece of information from the display device or transmitting status information of the host device to the display device. 23. The method of claim 22,
The host device includes a plurality of operation modes,
In the control method,
And controlling an operation state of the first wireless communication method and the second wireless communication method so that communication with the display device is performed only by the second wireless communication method when the operation mode of the host device is the power saving mode . 23. The method of claim 22,
The transmitting of the status information of the host apparatus includes:
Wherein when the operation mode of the host device is switched, information on the operation mode of the switched host device is transmitted to the display device using the second wireless communication method as status information of the host device . A control method of a display device connectable to a host device wirelessly,
Receiving video data from the host device in a first wireless communication scheme;
Displaying image data received through the first communication interface unit; And
The control information corresponding to the control command received through the touch screen of the display device using the second wireless communication method during the process of receiving the generated video data from the host device using the first wireless communication method, The status information of the host device is transmitted to the host device or the status information of the host device is received from the host device.

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