CN112073666B - Power supply control method of display equipment and display equipment - Google Patents

Abstract

The application provides a power supply control method of a display device, which specifically comprises the following steps: the second controller of the display device receives a starting-up instruction of the control device and sends an instruction to the power supply control module, and the power supply control module supplies power to the first controller of the display device; after the first controller of the display device is successfully powered on, an instruction is sent to the second controller through the communication module to indicate that the second controller is powered on. Compared with the prior art, the technical solutions provided in the exemplary embodiments of the present application have the following beneficial effects: according to the power supply control device, the power supply control module, the awakening module and the communication module, cooperation of power-on, power-off and standby can be achieved between the second controller and the first controller.

Description

Power supply control method of display equipment and display equipment

The invention, entitled "a power control method of a display device" filed in 2019, 06, 10, is filed in the application with the application number of 201910498095.7, the priority of which is incorporated herein by reference.

Technical Field

The embodiment of the application relates to a display technology. And more particularly, to a display apparatus having a camera.

Background

Currently, since a display device can provide a user with a play picture such as audio, video, picture, and the like, it is receiving a wide attention of the user. With the development of big data and artificial intelligence, the functional requirements of users on display devices are increasing day by day. For example, a user wants to play a display screen and simultaneously present a multi-channel video chat screen; or when the user is in a game scene, displaying that the participant is a real picture in real time; or the user can learn the current picture content in the education application program and simultaneously perform remote audio-video interaction with parents/teachers in real time, and the like. However, the current display devices, especially the home devices such as smart tvs, cannot realize the above-mentioned scenes because they have no built-in cameras.

Therefore, a display device capable of presenting a multi-channel video call while presenting a conventional television picture is urgently needed, so that a good user experience is provided for a user.

Disclosure of Invention

The application provides a power supply control method of a display device, which specifically comprises the following steps:

the second controller of the display device receives a power-on instruction of the control device,

sending an instruction to a power control module, wherein the power control module supplies power to a first controller of the display device;

after the first controller of the display device is successfully powered on, an instruction is sent to the second controller through the communication module to indicate that the second controller is powered on.

Compared with the prior art, the technical solutions proposed in the exemplary embodiments of the present application have the following beneficial effects: according to the power supply control device, the power supply control module, the awakening module and the communication module, cooperation power-on, power-off and standby can be achieved between the second controller and the first controller.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment;

fig. 2 is a block diagram exemplarily showing a hardware configuration of the control apparatus 100 according to the embodiment;

fig. 3 is a block diagram illustrating a hardware configuration of the display device 200 in one embodiment;

a block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 4;

fig. 5 is a diagram exemplarily showing a functional configuration of the display device 200 according to the embodiment;

fig. 6a schematically illustrates a software configuration in the display device 200 according to an embodiment;

fig. 6b schematically shows a configuration of an application in the display device 200 according to an embodiment;

fig. 7 is a block diagram illustrating a hardware configuration of the display device 200 in one embodiment;

FIGS. 8a-8b are diagrams illustrating a user interface in the display device 200 according to an embodiment;

fig. 9 is a diagram illustrating presentation of live broadcast content and presentation of video chat content in the display apparatus 200 according to an embodiment;

fig. 10 is a diagram illustrating presentation of video chat content while presenting on-demand play content in the display apparatus 200 according to an embodiment;

fig. 11 is a module interaction diagram of dual-chip power supply and standby state.

Detailed Description

To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate connection of different peripheral devices or cables to implement corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera receiving the source code, data received by the camera cannot be displayed on a display screen of the display device.

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually only supports video decoding with a resolution of 4K at most, so when a user wants to perform video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen by using a general-purpose processor (e.g. CPU) in the hardware system to perform soft decoding on the video.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. Further, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multi-channel video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module," as used in various embodiments of the present application, may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application) that is capable of wirelessly controlling the electronic device, typically over a short distance. The components may generally be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display apparatus 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control the display device 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

The control apparatus 100 may also be a smart device, such as a mobile terminal 100B, a tablet computer, a notebook computer, etc., which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200.

For example, the mobile terminal 100B and the display device 200 may each be installed with a software application, so that connection communication between the two may be implemented through a network communication protocol, and thus, the purpose of one-to-one control operation and data communication may be implemented. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio and video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 1, the display apparatus 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be communicatively coupled to the server 300 via a local area network, a wireless local area network, or other network. The server 300 may provide various contents and interactions to the display apparatus 200.

Illustratively, the display device 200 receives software Program updates, or accesses a remotely stored digital media library by sending and receiving information, and Electronic Program Guide (EPG) interactions. The servers 300 may be a group or groups, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.

The display device 200 may be a liquid crystal display, an OLED (Organic Light Emitting Diode) display, a projection display device, or an intelligent tv. The particular display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv function. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like.

As shown in fig. 1, the display device may be connected or provided with a camera, and is configured to present a picture taken by the camera on a display interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional area.

As an optional connection mode, the camera is connected with the display rear shell through the connecting plate, is fixedly installed in the middle of the upper side of the display rear shell, and can be fixedly installed at any position of the display rear shell as an installable mode, so that an image acquisition area is ensured not to be shielded by the rear shell, for example, the display orientation of the image acquisition area is the same as that of the display equipment.

As another alternative connection mode, the camera is connected to the display rear shell through a connection board or other conceivable connector, the camera is capable of lifting, the connector is provided with a lifting motor, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display, and when the camera is not needed, the camera can be embedded in the rear shell to protect the camera from being damaged.

As an embodiment, the camera adopted in the present application may have 1600 ten thousand pixels, so as to achieve the purpose of ultra high definition display. In actual use, cameras higher or lower than 1600 thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be as a background frame over which a window for video chat is displayed. The function is called 'chat while watching'.

Optionally, in a scene of "chat while watching", at least one video chat is performed across terminals while watching a live video or a network video.

In another example, a user can conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may be able to remotely interact with a teacher while learning content in an educational application. Vividly, this function can be called "chatting while learning".

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, this function may be referred to as "watch while playing".

Optionally, the game scene is fused with the video picture, the portrait in the video picture is scratched and displayed in the game picture, and the user experience is improved.

Optionally, in the motion sensing game (such as ball hitting, boxing, running and dancing), the human posture and motion, limb detection and tracking and human skeleton key point data detection are obtained through the camera, and then the human posture and motion, the limb detection and tracking and the human skeleton key point data detection are fused with the animation in the game, so that the game of scenes such as sports and dancing is realized.

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Vividly, this function can be called "sing while watching". Preferably, when at least one user enters the application in a chat scenario, a plurality of users can jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram schematically showing the configuration of the control apparatus 100 according to the exemplary embodiment. As shown in fig. 3, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control apparatus 100 is configured to control the display device 200, and to receive an input operation instruction from a user, and convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to mediate interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display device 200 according to user demands.

In some embodiments, as shown in fig. 1, the mobile terminal 100B or other intelligent electronic device may function similar to the control apparatus 100 after installing an application for manipulating the display device 200. Such as: a user may implement the functions of controlling the physical keys of apparatus 100 by installing applications, various function keys or virtual buttons of a graphical user interface that may be provided on mobile terminal 100B or other intelligent electronic device.

The controller 110 includes a processor 112, a RAM113 and a ROM114, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, it may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The communicator 130 is configured in the control device 100, such as: the modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operational power support to the components of the control device 100 under the control of the controller 110. A battery and associated control circuitry.

A hardware configuration block diagram of a hardware system in the display apparatus 200 according to an exemplary embodiment is exemplarily shown in fig. 3.

When a dual hardware system architecture is adopted, the mechanism relationship of the hardware system can be shown in fig. 3. For convenience of description, one hardware system in the dual hardware system architecture is referred to as a first hardware system or a first chip, a system, a chip, and the other hardware system is referred to as a second hardware system or a second chip, N system, N chip. The chip A comprises a controller (a first controller) of the chip A and various modules connected with the controller of the chip A through various interfaces, and the chip N comprises a controller (a second controller) of the chip N and various modules connected with the controller of the chip N through various interfaces. The a-chip and the N-chip may each have a separate operating system installed therein, so that there are two separate but interrelated subsystems in the display apparatus 200.

The dual hardware system architecture of the present application is further described below with reference to fig. 4. It should be noted that fig. 4 is only an exemplary illustration of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

A block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 4. As shown in fig. 4, the hardware system of the display device 200 may include an a chip and an N chip, and a module connected to the a chip or the N chip through various interfaces.

The N-chip may include a tuner demodulator 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a video processor 260-1, an audio processor 260-2, a display 280, an audio output interface 272, and a power supply. The N-chip may also include more or fewer modules in other embodiments.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate an audio/video signal carried in a frequency of a television channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast television signals. Depending on the broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the adjustment mode of the signal can be a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signals carried thereby, in accordance with the user selection, and as controlled by the controller 210.

In other exemplary embodiments, the tuner/demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth communication protocol module 232, a wired ethernet communication protocol module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The display apparatus 200 may establish a connection of a control signal and a data signal with an external control apparatus or a content providing apparatus through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100 according to the control of the controller.

The external device interface 250 is a component for providing data transmission between the N-chip controller 210 and the a-chip and other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal 251, a Composite Video Blanking Sync (CVBS) terminal 252, an analog or digital component terminal 253, a Universal Serial Bus (USB) terminal 254, a red, green, blue (RGB) terminal (not shown), and the like. The number and type of external device interfaces are not limited by this application.

The controller 210 controls the operation of the display device 200 and responds to the user's operation by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in fig. 4, the controller 210 includes a read only memory RAM213, a random access memory ROM214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. The RAM213 and the ROM214, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a bus.

A ROM213 for storing instructions for various system boots. If the display device 200 is powered on upon receipt of the power-on signal, the CPU processor 212 executes a system boot instruction in the ROM and copies the operating system stored in the memory 290 to the RAM214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

The communication interfaces may include a first interface 218-1 through an nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

The controller 210 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like.

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management.

For example: the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the display 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is used for carrying out control and data communication with external equipment. The browser module is a module for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.

Meanwhile, the memory 290 is also used to store received external data and user data, images of respective items in various user interfaces, and visual effect maps of the focus object, etc.

A user input interface for transmitting an input signal of a user to the controller 210 or transmitting a signal output from the controller to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by a user to the user input interface, and then the input signal is forwarded to the controller by the user input interface; alternatively, the control device may receive an output signal such as audio, video, or data output from the user input interface via the controller, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, a user may enter a user command on a Graphical User Interface (GUI) displayed on the display 280, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 260-1 is configured to receive a video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, such as a 24Hz, 25Hz, 30Hz, or 60Hz video, into a 60Hz, 120Hz, or 240Hz frame rate, where the input frame rate may be related to a source video stream, and the output frame rate may be related to an update rate of a display. The input is realized in a common format by using a frame insertion mode.

And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

And a display 280 for receiving the image signal input from the video processor 260-1 and displaying the video content and image and the menu manipulation interface. The display 280 includes a display component for presenting a picture and a driving component for driving the display of an image. The video content may be displayed from the video in the broadcast signal received by the tuner/demodulator 220, or from the video content input from the communicator or the external device interface. And a display 220 simultaneously displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, a driving component for driving the display according to the type of the display 280. Alternatively, in case the display 280 is a projection display, it may also comprise a projection device and a projection screen.

The audio processor 260-2 is configured to receive an audio signal, decompress and decode the audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, amplification and other audio data processing to obtain an audio signal that can be played in the speaker 272.

An audio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of the controller 210, wherein the audio output interface may include a speaker 272 or an external sound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. The audio processor 260-2 may also include one or more chips.

And, in other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips or may be integrated in one or more chips with the controller 210.

And a power supply for supplying power supply support to the display apparatus 200 from the power input from the external power source under the control of the controller 210. The power supply may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

Similar to the N-chip, as shown in fig. 4, the a-chip may include a controller 310, a communicator 330, a detector 340, and a memory 390. A user input interface, a video processor, an audio processor, a display, an audio output interface may also be included in some embodiments. In some embodiments, there may also be a power supply that independently powers the A-chip.

The communicator 330 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module.

The communicator 330 of the a-chip and the communicator 230 of the N-chip also interact with each other. For example, the N-chip WiFi module 231 is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 of the a chip is used to connect to the WiFi module 231 of the N chip without making a direct connection with an external network or the like. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the display device a chip for collecting signals of an external environment or interacting with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

An external device interface 350, which provides a component for data transmission between the controller 310 and the N-chip or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

The controller 310 controls the operation of the display device 200 and responds to the user's operation by running various software control programs stored on the memory 390 (e.g., using installed third party applications, etc.), and interacting with the N-chip.

As shown in fig. 4, the controller 310 includes a read only memory ROM313, a random access memory RAM314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM313 and the RAM314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected via a bus.

A ROM313 for storing instructions for various system boots. CPU processor 312 executes system boot instructions in ROM and copies the operating system stored in memory 390 to RAM314 to begin running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM314, and then starts running and starting various application programs.

The CPU processor 312 is used for executing the operating system and application program instructions stored in the memory 390, communicating with the N chip, transmitting and interacting signals, data, instructions, etc., and executing various application programs, data and contents according to various interaction instructions received from the outside, so as to finally display and play various audio and video contents.

The communication interfaces may include a first interface 318-1 through an nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the N-chip via a network.

The controller 310 may control the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

A graphics processor 316 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 280.

Both the A-chip graphics processor 316 and the N-chip graphics processor 216 are capable of generating various graphics objects. In distinction, if application 1 is installed on the a-chip and application 2 is installed on the N-chip, the a-chip graphics processor 316 generates a graphics object when a user performs a command input by the user in application 1 at the interface of application 1. When a user makes a command input by the user in the interface of the application 2 and within the application 2, a graphic object is generated by the graphic processor 216 of the N chip.

Fig. 5 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

As shown in fig. 5, the memory 390 of the a-chip and the memory 290 of the N-chip are used to store an operating system, an application program, contents, user data, and the like, respectively, and perform system operations for driving the display device 200 and various operations in response to a user under the control of the controller 310 of the a-chip and the controller 210 of the N-chip. The A-chip memory 390 and the N-chip memory 290 can include volatile and/or non-volatile memory.

The memory 290 is specifically configured to store an operating program for driving the controller 210 in the display device 200, and store various applications installed in the display device 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported applications. The memory 290 is used to store system software such as an Operating System (OS) kernel, middleware, and applications, and to store input video data and audio data, and other user data.

The memory 290 is specifically used for storing drivers and related data such as the video processor 260-1 and the audio processor 260-2, the display 280, the communication interface 230, the tuner demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, an audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module 2909, a power control module 2910, an operating system 2911, and other applications 2912, a browser module, and the like. The controller 210 performs functions such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 390 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 390, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like. Since the functions of the memory 390 and the memory 290 are similar, reference may be made to the memory 290 for relevant points, and thus, detailed description thereof is omitted here.

The memory 390, for example, includes an image control module 3904, an audio control module 2906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application programs 3912, a browser module, and the like. The controller 210 performs functions such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Differently, the external instruction recognition module 2907 of the N-chip and the external instruction recognition module 3907 of the a-chip can recognize different instructions.

Illustratively, since the image receiving device such as a camera is connected with the a-chip, the external instruction recognition module 3907 of the a-chip may include the pattern recognition module 2907-1, a pattern database is stored in the pattern recognition module 3907-1, and when the camera receives an external pattern instruction, the camera corresponds to the instruction in the pattern database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the N-chip, the external command recognition module 2907 of the N-chip may include a voice recognition module 2907-2, a voice database is stored in the graphic recognition module 2907-2, and when the voice receiving device receives an external voice command or the like, the voice receiving device and the like perform a corresponding relationship with a command in the voice database to perform command control on the display device. Similarly, a control device 100 such as a remote controller is connected to the N-chip, and a key command recognition module performs command interaction with the control device 100.

A block diagram of a configuration of a software system in a display device 200 according to an exemplary embodiment is exemplarily shown in fig. 6 a.

For an N-chip, as shown in fig. 6a, the operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware related tasks, serves as an intermediary between applications and hardware components for data processing.

In some embodiments, portions of the operating system kernel may contain a series of software to manage the display device hardware resources and provide services to other programs or software code.

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The drivers may contain code that operates the video, audio, and/or other multimedia components. Examples include a display, a camera, flash, wiFi, and audio drivers.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

The user interface module 2911-3 is configured to provide an object for displaying a user interface, so that each application program can access the object, and user operability can be achieved.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

The event transmission system 2914 may be implemented within the operating system 2911 or within the application 2912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application 2912, for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-events.

The event monitoring module 2914-1 is configured to monitor an event or a sub-event input by the user input interface.

The event recognition module 2914-1 is configured to input definitions of various types of events for various user input interfaces, recognize various events or sub-events, and transmit them to a process for executing one or more corresponding sets of processes.

The event or sub-event refers to an input detected by one or more sensors in the display device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events through voice, inputting a gesture sub-event through gesture recognition, inputting a remote control key command of a control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok key, key press and the like. And non-physical key operations such as move, hold, release, etc.

The interface layout management module 2913, directly or indirectly receiving the input events or sub-events from the event transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the functions of the operating system 3911 of the a chip are similar to those of the operating system 2911 of the N chip, reference may be made to the operating system 2911 for relevant points, and details are not repeated here.

As shown in fig. 6b, the application layer of the display device contains various applications that can be executed at the display device 200.

The N-chip application layer 2912 may include, but is not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. The application layer 3912 of the a-chip may include, but is not limited to, one or more applications such as: live television applications, media center applications, and the like. It should be noted that what applications are respectively contained in the a chip and the N chip is determined according to an operating system and other designs, and the present invention does not need to make specific limitations and divisions on the applications contained in the a chip and the N chip.

The live television application program can provide live television through different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

A video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

As shown in fig. 7, the a chip and the N chip may be connected, communicated and powered through a plurality of different types of interfaces. The interface type of the interface between the a chip and the N chip may include a General-purpose input/output (GPIO) interface, a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the a-chip and the N-chip. For example, as shown in fig. 7, in the dual hardware system architecture, the N chip may be powered by an external power source (power), and the a chip may not be powered by the external power source but by the N chip.

In addition to the interface for connecting with the N chip, the a chip may further include an interface for connecting other devices or components, such as an MIPI (mobile industry processor interface) interface for connecting a Camera (Camera), a bluetooth interface, a USB interface, and the like shown in fig. 7.

Similarly, in addition to the interface for connecting with the N chip, the N chip may further include a VBY interface for connecting a display screen TCON (Timer Control Register), and an i2S interface for connecting a power Amplifier (AMP) and a Speaker (Speaker); and an IR/Key interface, a USB interface, a Wifi interface, a bluetooth interface, an HDMI interface, a Tuner interface, and the like.

In one embodiment, the user may also conduct a video chat while watching a live video. For the second chip, it can provide a device of live television through HDMI2.0 external set-top box shown in fig. 7, and therefore, the second chip is generally used to present live video.

The live television is directly decoded by the set top box or the radio and television, and hardware decoding resources of the second chip are not occupied, so that data received by the hardware resource decoding camera of the second chip can be decoded when the live television is watched and video chat is carried out.

In one embodiment, the user can conduct video chat while watching the network video. In such a scenario, the network or third party application provides video-on-demand whose data requires hardware decoding resources to decode. While data received from the camera also requires hardware decoding. Therefore, if an application scene of performing video chat while watching a network video is desired, data received by the camera and the network video resource need to be decoded on two chips respectively.

When the data received by the camera is subjected to hardware decoding by the second chip, the video on demand can be subjected to hardware decoding by the first chip. Therefore, the first chip is used for storing and running the third-party video-on-demand application in the setting of the application program. As shown in fig. 7, the HDMI line between the first chip and the second chip is used to transmit video on demand or data of a third party application. Wherein the HDMI cable is not visible to a user.

Therefore, the hardware configuration shown in fig. 7 can realize one of the scenes of video chat while watching live television and video chat while watching network television, and the hardware decoding capability of the first chip and the second chip is not affected.

In addition, as shown in fig. 7, there may be a USB cable as a connection between the first chip and the second chip, and the USB cable is used to transmit the video data received by the camera to the second chip for hardware decoding and presentation on the display. The first chip is connected with a camera, and the connection between the first chip and the camera can be through an MIPI interface or a USB interface.

In a scene of performing video chat while network chat, on-demand resources of a third-party video application in the first chip are transmitted to the second chip through an HDMI line and finally displayed on a display. The data of the camera received by the first chip is transmitted to the second chip through the USB wire, and is displayed on the display after being decoded.

Since the a chip and the N chip may have independent operating systems respectively installed therein, there are two independent but interrelated subsystems in the display device 200. For example, android (Android) and various APPs can be independently installed on the chip a and the chip N, so that each chip can realize a certain function, and the chip a and the chip N cooperatively realize a certain function.

A schematic view of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 8 a. As shown in fig. 8a, the user interface includes a plurality of view display areas, illustratively a first view display area 201 and a second view display area 202, wherein the second view display area includes a layout of one or more different items. And a selector is included in the user interface indicating that an item is selected, the position of the selector being movable by user input to change the selection of a different item.

It should be noted that the multiple view display areas may present display screens of the application programs. For example, the first video display area 201 can present video chat project content, wherein the first video display area 201 includes a local view display area displaying local camera acquisition data and a remote view display area, and the second view display area 202 can present application layer project content (e.g., live video, web video, VOD presentation, application screens, etc.).

As with fig. 8b, in some embodiments, the user may close the video content of the local view display, leaving only the remote video data of the first remote view display and the content of the third view display. In this case, it is detected that the user closes the local view display area, and the camera is automatically closed.

Optionally, with regard to fig. 8a and 8b, there is a priority difference in the presentation of the different view display areas, and the display priority of the view display areas is different between the view display areas with different priorities. For example, the local view display area 2011 and the remote view display area 2012 have higher priority than the second view display area 202, and when the user uses the acquisition selector and the screen switching in the second view display area 202, the screen display of the first view display area 201 is not obstructed; and when the size and position of the third view display area are changed according to the selection of the user, the size and position of the first view display area 201 and the second view display area 202 are not affected.

The display screens of the same priority level can also be presented, at this time, the selector can switch between the first view display area and the second view display area, and when the size and the position of the first view display area are changed, the size and the position of the second view display area can be changed along with the change.

As one example, the first and second view display areas may present video chat project content and the second view display area may present application layer project content (e.g., live video, web video, VOD presentations, application screens, etc.).

As illustrated in fig. 9, in some embodiments, when the user opens the video chat application, the video chat interface is presented in the first view display area, and the second view display area can access the external device through HDMI2.0 to present live content; when receiving an instruction to switch to the on-demand video input by the user, the second view display area presents the on-demand content through the second controller connected by the HDMI 1.0.

Fig. 11 is an interaction diagram of dual-chip power supply and standby states. The states of the dual-hardware system include power-off, working, normal standby and STR standby. For the above operation modes, the N chip may be regarded as the second controller, and the a chip may be regarded as the first controller. When the first controller is in a working state, the second controller and the first controller are in a normal working state; when the second controller is in the normal standby state, the first controller is powered off. When standby in STR: the second controller and the first controller are both in an STR standby state, and both the second controller and the first controller are powered. It should be noted that: the main difference between STR standby and normal standby is that DDR is powered off when normal standby, and DDR is not powered off when STR standby. It should be noted that the STR standby state can only be obtained by switching the operation state.

The invention provides a power supply control method under dual systems. The module composition and description are as follows:

the power supply module is responsible for supplying power for the dual system, and the second controller and the power supply control module are directly connected to the power supply module. The second controller controls the power supply control module to control whether to supply power to the first controller. The second controller receives and processes instructions of the human-machine interaction module (i.e., the control device 100). The communication module may perform two-way communication between the second controller and the first controller. The second controller can wake up the first controller in a standby state through the wake-up module.

Under the condition of ordinary standby awakening, the second controller sends an instruction to the power supply control module after receiving a starting instruction from the human-computer interaction module, and then the power supply control module supplies power to the first controller. The first controller starts to be started after being powered on, and after the first controller is started successfully, the first controller sends an instruction to the second controller through the communication module to inform the second controller of the completion of starting, and the starting is successful.

After the second controller sends an instruction to the power control module, if the instruction returned by the first controller is not received after a certain time (such as 1 minute), the first controller is considered to be powered on unsuccessfully, at this time, the second controller sends a power-off instruction to the power control module, and then sends a power-on instruction to control the first controller to be restarted. If the first controller returns a success instruction, the starting is successful; if the first controller does not return the instruction, the starting is considered to fail.

In the standby case: and after the standby of the first controller is finished, the standby completion instruction is sent to the second controller through the communication module, and at the moment, the second controller carries out STR standby again.

Under the condition of standby overtime, if the second controller does not receive the standby completion instruction of the first controller within a certain time (such as 1 minute) after sending the STR standby instruction again, a power-off instruction is sent to the power control module to forcibly power off the first controller, and the second controller enters a common standby state.

Under the condition that the STR is awakened in a standby mode, after the second controller receives an awakening instruction from the human-computer interaction module, the second controller enters an awakening process and sends the awakening instruction to the first controller through the awakening module, after the first controller is awakened successfully, an awakening successful instruction is sent to the second controller through the communication module, and awakening is completed at this time.

After the second controller sends the wake-up instruction, if the instruction returned by the first controller is not received after a certain time (such as 1 minute), the first controller is considered to be failed to be powered on and awakened, at this time, the second controller sends a power-off instruction to the power control module, and then sends a power-on instruction to control the first controller to be restarted. If the first controller returns a success instruction, the starting is successful; if the first controller does not return the instruction, the wakeup is considered to fail.

Referring to fig. 7, the Power control module is a Power control GPIO (General-purpose input/output) line, and the Wake-up module is a Wake up GPIO line, which outputs a high voltage or a low voltage through a pin to implement input, output or other special functions. The communication module is an instruction module connected through a USB line, an HDMI line or a UART (serial port) line.

The application provides a power supply control method of a display device, which specifically comprises the following steps: the second controller of the display device receives a starting-up instruction of the control device and sends an instruction to the power supply control module, and the power supply control module supplies power to the first controller of the display device; after the first controller of the display device is successfully powered on, an instruction is sent to the second controller through the communication module to indicate that the second controller is powered on. Compared with the prior art, the technical solutions proposed in the exemplary embodiments of the present application have the following beneficial effects: according to the power supply control device, the power supply control module, the awakening module and the communication module, cooperation of power-on, power-off and standby can be achieved between the second controller and the first controller.

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.

It should be understood that the terms "first," "second," "third," and the like in the description and in the claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can, for example, be implemented in sequences other than those illustrated or otherwise described herein with reference to the embodiments of the application.

Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims (7)

1. A display device, comprising:

a camera configured to acquire environmental image data;

a display configured to present a user interface, and/or environmental image data;

a first controller in communication with the camera;

a second controller configured to communicate with the first controller and the display, the second controller performing:

receiving a starting-up instruction for triggering the display equipment to start up, sending a power-on instruction to the first controller, and entering a working state after receiving a power-on success instruction sent by the first controller;

under the condition that the display equipment is in a working state, when the second controller receives a standby instruction, an STR standby instruction is sent to the first controller;

receiving a standby completion instruction sent by the first controller after standby is completed, and entering an STR standby state; the STR standby state can be obtained only by switching the working state;

and if the second controller does not receive the standby completion instruction sent by the first controller within a preset time length, the first controller is forced to be powered off, and the second controller enters a common standby state.

2. The display device of claim 1, wherein the normal standby state indicates that the second controller is in a normal standby state and the first controller is powered down.

3. The display device of claim 1, wherein the STR standby state is used to indicate that the second controller and the first controller are both in the STR standby state, and wherein the second controller and the first controller are both powered by a power supply module.

4. A power supply control method of a display device is used for a second controller of a device comprising double controllers, wherein a first controller is communicated with a camera; the second controller configured to communicate with the first controller and a display, characterized in that:

receiving a starting-up instruction for triggering the display equipment to start, sending a power-on instruction to a first controller, and entering a working state after receiving a power-on success instruction sent by the first controller;

under the condition that the display equipment is in a working state, when the second controller receives a standby instruction, an STR standby instruction is sent to the first controller;

receiving a standby completion instruction sent by the first controller after standby is completed, and entering an STR standby state; the STR standby state can be obtained only by switching the working state;

and if the second controller does not receive the standby completion instruction sent by the first controller within a preset time length, the first controller is forced to be powered off, and the second controller enters a common standby state.

5. The power supply control method according to claim 4,

the normal standby state is used for indicating that the second controller is in the normal standby state, and the first controller is powered off;

the STR standby state is used for indicating that the second controller and the first controller are both in the STR standby state, and the second controller and the first controller are both powered by a power supply module.

6. A computing device, comprising:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing the method of any one of claims 4 to 5 according to the obtained program.

7. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any of claims 4 to 5.

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