KR101387488B1 - Control system and method for reserved wake-up and sleep mode of peripheral device of digital TV by two-way communication - Google Patents

Abstract

According to the present invention, a plurality of slave devices are controlled by a master device using a bidirectional communication to wake up / sleep at a preset time, so that a plurality of devices can be quickly and easily operated, and time error between devices can be avoided. The present invention relates to a wake-up / sleep reservation system and method for a digital TV slave device using two-way communication. The present invention provides a method for reserving a wake-up or sleep mode of a master device and a plurality of slave devices and setting a respective time in the master device; Counting a reservation time set for each slave device from the master device; Determining whether it is in the wake-up mode or the sleep mode reservation state, and confirms the address and connection state of the corresponding slave device through bidirectional communication; The slave device is switched to the wakeup mode or the sleep mode according to the reserved state. The plurality of slave devices have different identification addresses, and select the corresponding slave device that is reserved by checking the address and the connection state from the master device. The bidirectional communication is performed through HDMI CEC communication.

Master, Slave, Two-Way Communication, Reservation, Wake Up, Sleep, HDMI CEC

Description

Wake-up / sleep reservation system and method for digital TV slave device using two-way communication {Control system and method for reserved wake-up and sleep mode of peripheral device of digital TV by two-way communication}

The present invention relates to a digital TV, and more particularly, to a wake-up / sleep reservation system and method for a digital TV slave device using two-way communication.

Recently, the use of digital A / V devices such as digital TVs in each home is increasing.

For example, a video display device (hereinafter referred to as a master device) such as a television (TV: TeleVision), a projector or a monitor, a set top box (STB), a personal computer (PC) , Video game systems, digital video disc (DVD) recorders, hard disk drives (HDDs) that can be included in STB or DVD recorders, audio / video recorders, home theater systems Audio / video devices (hereinafter referred to as slave devices) such as (HTS: Home Theater System) or Video Cassette Recorder (VCR).

On the other hand, such conventional digital AV devices are equipped with various functions, in particular, to save energy in the system sleep (sleep) mode to save energy to wake up to perform the operation at the scheduled time by the user -up) and a sleep function to stop the operation at a scheduled time during normal operation and enter a power saving mode.

However, in the related art, in order to set a wake-up or sleep reservation function in each AV device such as a master device and a slave device, a reservation function may be performed by setting a desired reservation time after setting a current time of each AV device. Therefore, in recent years, when connecting and using a plurality of A / V devices, there has been a very inconvenient problem that a consumer needs to adjust the reservation function of each A / V device one by one.

In addition, when a certain period of time has elapsed, there has been a problem in that the time error is generated by different timers for each A / V device, and thus all A / V devices are not collectively operated at the reserved time.

Accordingly, the present invention is to solve the above-mentioned conventional problems, by controlling the wake-up / sleep state at a predetermined time by using a bidirectional communication between a plurality of slave devices in one master device, a quick, simple and multiple It is an object of the present invention to provide a wake-up / sleep reservation system and method for a digital TV slave device using two-way communication to operate a device and to prevent occurrence of time error between the devices.

A wake-up / sleep reservation system for a digital TV slave device using bidirectional communication according to the present invention for achieving the above object is a system in which one master device and a plurality of slave devices are connected, wherein the master device is the plurality of master devices. Set a wake-up or sleep mode state of each slave device and each time reservation, count a set reservation time for each slave device, and when the scheduled time is reached, wake-up mode or sleep mode reservation state Determine whether the slave device is connected, determine an address and a connection state of the slave device through bidirectional communication, and switch the slave device to a wake-up mode or a sleep mode according to the reserved state; The plurality of slave devices may be switched to a wakeup mode or a sleep mode under the control of the master device.

The master device may include a memory configured to store a reservation state and time set for the plurality of slave devices; And a main processor configured to count the reservation time, determine a wake-up or sleep mode reservation state, check an address and a connection state of the corresponding slave device, and switch each of the corresponding slave devices into a wake-up mode or a sleep mode. Include.

The plurality of slave devices may have different identification addresses, and further include a switching unit configured to select corresponding slave devices that are reserved by checking the address and the connection state from the master device. The one master device and the plurality of slave devices include respective HDMI connectors, and the bidirectional communication is performed through HDMI CEC communication between the respective HDMI connectors.

In addition, the wake-up / sleep reservation method of the digital TV slave device using the two-way communication according to the present invention, in a control method of a system connected to one master device and a plurality of slave devices, the master device and the master device and the Reserving a wake-up or sleep mode state and a respective time of the plurality of slave devices; Counting a reservation time set for each slave device from the master device; Determining whether it is in the wake-up mode or in the sleep mode reservation state and confirming an address and a connection state of the corresponding slave device through bidirectional communication; And switching the corresponding slave device to a wake-up mode or a sleep mode according to the reserved state.

The master device stores a reservation state and time set for the plurality of slave devices in a memory. The plurality of slave devices have different identification addresses, and select the corresponding slave device that is reserved by checking the address and the connection state from the master device. The bidirectional communication is performed through HDMI CEC communication.

According to the wake-up / sleep reservation system of a digital TV slave device using two-way communication according to the present invention and a method thereof, a plurality of slave devices in one master device by using the two-way communication to wake up / sleep state at a predetermined time setting By controlling, it is possible to operate a plurality of devices quickly and simply, and there is an effect of preventing the occurrence of time error between devices.

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

1 is a block diagram illustrating a wake-up / sleep reservation system of a digital TV slave device using bidirectional communication according to the present invention.

As shown, in the present invention, one master device 100 and a plurality of slave devices 300 are connected through the switching unit 200.

As described above, the master device 100 may be, for example, a video display device such as a television (TeleVision), a projector, a monitor, or the like, and the slave device 300 is a set top box (STB). : Set Top Box, personal computer (PC), video game system, digital video disc (DVD) recorder, hard disk drive (HDD) that can be included in STB or DVD recorder An audio / video device such as a hard disc device, an audio / video recorder, a home theater system (HTS), or a video cassette recorder (VCR) may be applied.

The master device 100 reserves a wake-up or sleep mode state of each of the plurality of slave devices 300 and respective times, and counts a reservation time set for each slave device 300. In addition, when the scheduled time is reached, it is determined whether the wake-up mode or the sleep mode is reserved, the address and connection state of the corresponding slave device 300 are confirmed through bidirectional communication, and the The slave device 300 is switched to the wakeup mode or the sleep mode.

The plurality of slave devices 300 are switched to the wakeup mode or the sleep mode under the control of the master device 100.

In this case, the plurality of slave devices 300 have different identification addresses, and the switching unit 200 checks the address and the connection state from the master device 100 and reserves the corresponding slave device 300. Select).

In addition, the master device 100 and the slave device 300 includes respective HDMI connectors 110 and 310, and bidirectional communication is performed through HDMI CEC communication between the HDMI connectors 110 and 310. .

The high definition multimedia interface (HDMI) is a high-speed multimedia interface capable of integrally transmitting uncompressed full digital audio and video signals, and refers to a high-definition multimedia interface standard. The HDMI is a standard that replaces the existing analog interface such as composite, super video, and component video, and is mainly applied to newly developed DVD players, high definition television (HDTV), and set-top boxes. By processing 5Gbps digital video and audio as it is without compression, the circuit is simple, quality deterioration does not occur, and the protection of content authoring by HDCP (High-bandwidth Digital Content Protection) is supported. It is easy to use.

2 is a block diagram illustrating in detail the HDMI connection state between the master device and the slave device according to the present invention.

As shown, the present invention consists of a master device 400, a slave device 500, HDMI channel lines and an HDMI-CEC line 520.

The master device 400 includes a user command input unit 401, a main processor 402, an auxiliary processor 404, a memory 405, an HDMI transmitter 406, and an HDMI connector 408.

The slave device 500 includes an HDMI connector 502, an HDMI receiver 504, a main processor 506, an auxiliary processor 508, a user command input unit 510, and a graphical user interface (GUI). The screen generator 512, the video and audio processor 514, the display 516, and the speaker 518 are configured.

The auxiliary processor 404 transmits the CEC frame to the slave device 500 through the input / output port 410 of the HDMI connector 408 or receives the CEC frame transmitted from the slave device 500 through the input / output port 410. do. In addition, the header block and the data block of the received CEC frame are provided to the main processor 402.

The auxiliary processor 508 transmits the CEC frame to the master device 400 through the input / output port 503 of the HDMI connector 502, or receives the CEC frame transmitted from the master device 400 through the input / output port 503. The header block and the data block of the received CEC frame are provided to the main processor 506.

Each of the auxiliary processors 404 and 508 may use an interrupt of, for example, 0.1 ms to sample a CEC frame.

Each of the auxiliary processing units 404 and 508 may be included in the main processing units 402 and 506, respectively, but it is preferable to configure separately because the sampling in units of 0.1 ms may put a load on the operation of other units.

In addition, each of the auxiliary processors 404 and 508 may perform a CEC line error handling process, a process of identifying whether a CEC frame is valid, and re-transmissions of the CEC frame.

Each of the main processors 402 and 506 may process a CEC protocol layer and an application layer.

The CEC protocol layer is a middleware layer that implements the operation of the CEC protocol, and provides a standard application programming interface (API) for application development.

In addition, a porting layer may be provided in consideration of hardware changes of the auxiliary processing units 404 and 508.

The main role of the CEC protocol layer is to configure and manage a device tree for the connected slave device 500 and the master device 400 and to manage the state of each device. In particular, it encapsulates the CEC protocol inside from the application.

Accordingly, bidirectional communication is performed between the master device 400 and the slave device 500 through the HDMI CEC communication between the respective HDMI connection units 408 and 502.

The HDMI transmitter 406 of the master device 400 receives audio / video data from the main processor 402 and transmits the audio / video data to the slave device 500 through the HDMI connector 408. At this time, the audio / video data is transmitted through a transition minimized differential signaling (TDMS) method, also called a channel link. The TDMS clock is a clock for the TDMS scheme.

The HDMI receiver 504 of the slave device 500 receives audio / video data transmitted from the master device 400 through the HDMI connector 502, and receives the received audio / video data from the main processor 506, an image, and the like. It outputs to the audio processing part 514, respectively. The user command input unit 510 outputs the user command manipulated and accepted by the user to the main processing unit 506.

In addition, the main processor 402 counts a set reservation time, determines a wake-up or sleep mode reservation state, checks an address and a connection state of the corresponding slave device 500, and each of the corresponding slave devices 500. ) To wake up or sleep. To this end, the plurality of slave devices 500 have different identification addresses.

The memory 405 stores reservation states and times set for the plurality of slave devices 500.

In addition, the main processing unit 506 controls the units 508, 512, 514, and the like of the slave device 500. Under the control of the main processor 506, the video and audio processor 514 processes the audio and / or video data received from the HDMI receiver 504, respectively, into audio signal processing and / or video signal processing.

The result of the video signal processing by the video and audio processing unit 514 is visually provided to the user through the display unit 516, and the result of the audio signal processing by the video and audio processing unit 514 to the user through the speaker 518. It is provided acoustically.

The GUI screen generator 512 generates a GUI screen under the control of the main processor 506, and outputs the generated GUI screen to the video and audio processor 514.

The video and audio processor 514 mixes / processes the GUI screen generated by the GUI screen generator 512 with the video signal input from the HDMI receiver 504 and displays it on the display 516. The display unit 516 includes an LCD module, a PDP module, a CRT module, and the like.

Here, components of a general digital television, that is, elements such as an antenna, a tuner, a multiplexer, a scaler, and the like, have been omitted.

3 is a plan view of a remote controller showing an embodiment of a user command input unit according to the present invention.

As illustrated, when the user command input unit 401 is implemented as a remote controller, a hotkey 530 in the form of a button for requesting to display a GUI screen for setting wake-up / sleep mode reservation is disposed on the remote controller. Can be.

4A and 4B are diagrams illustrating an embodiment of a GUI screen configuration of a wakeup / sleep reservation setting process according to the present invention.

4A and 4B are examples of GUI screens, and menu items corresponding to a user selectable function are displayed on the GUI screen.

In the GUI screen, the menu item may be displayed by at least one of a name (TV, DSIC, VCR, HDD, etc.) and an icon of the slave device 500. Therefore, the user can more easily recognize the connection status of the slave device 500 through the GUI screen.

In the GUI screen, a menu item corresponding to a function selectable by the user and a menu item corresponding to a function not selectable by the user may be separately displayed. For example, as shown in FIG. 4A, the font color of the menu items STB, DTV, and AVR corresponding to a user selectable function is processed brightly, and the font color of the menu item DVD that is not is darkened. (gray) can be processed and displayed.

If a slave device 500 having a device called 'AVR' is connected to the master device 400, the menu item indicates that the user can select the 'Set AVR wake up / wake up' function. Marked by bright letters. However, if the slave device 500 named 'DVD' is not connected to the master device 400, the menu item indicates by dark text that the user cannot select the 'DVD wakeup / sleep schedule setting' function. .

According to another example of the present invention, a menu item corresponding to a function selectable by a user may be displayed in the GUI, and a menu item corresponding to a function not selectable by the user may not be displayed in the GUI.

In addition, in the GUI screen, the menu item corresponding to the function selected by the user and the menu item corresponding to the function not selected by the user may be separately displayed using an identifier or the like.

Therefore, when the user selects any one of the selectable items, a GUI screen as shown in FIG. 4B is displayed to preset a wake-up or sleep time and a broadcast channel to be output at power-on in case of wake-up or sleep state. Can be.

5 is a control flowchart illustrating a wakeup / sleep reservation method of a digital TV slave device using bidirectional communication according to the present invention.

As shown, the present invention is a control method of a system in which one master device 100, 400 and a plurality of slave devices 300, 500 are connected, the master device 100, 400 in the master Scheduling (S101) a state of a wake-up or sleep mode and a respective time of the device (100) (400) and the plurality of slave devices (300) (500); Counting reservation time set for each slave device (300) (500) from the master device (100) (400) (S102 to S103); When the scheduled time is reached, determining whether the wake-up mode or the sleep mode is in a reserved state, and confirming an address and a connection state of the corresponding slave device 300 or 500 through bidirectional communication (S104 to S105) ( S104-S109); Switching the corresponding slave device 300 or 500 to a wake-up mode or a sleep mode according to the reserved state (S106 to S108) (S110 to S112).

The master devices 100 and 400 store reservation states and times set for the plurality of slave devices 300 and 500 in the memory 405, and the plurality of slave devices 300 and 500 It has different identification addresses and checks the address and the connection state from the master devices 100 and 400 to select the corresponding slave devices 300 and 500 that are reserved. The bidirectional communication is configured to be via HDMI CEC communication.

The operation of the present invention configured as described above will be described in more detail. Here, although the master device according to the present embodiment uses a television broadcast receiver as an example, the present invention can be applied to another receiver such as a set-top box.

First, as shown, the present invention is the state of the wake-up or sleep mode of the master device 100, 400 and the plurality of slave devices 300, 500 in the master device (100, 400) and A step S101 of setting a reservation for each time is performed.

In this case, as shown in FIG. 3, when the user command input unit 401 is implemented as a remote control, the user may set a wakeup / sleep mode reservation by pressing a hotkey 530 in the form of a button. Accordingly, when the hot key 530 is pressed, menu items corresponding to a user selectable function are displayed on the GUI screen.

In the GUI screen, the menu item is displayed by at least one of the name (TV, DSIC, VCR, HDD, etc.) and the icon of the slave device 500, and the user can more easily connect the slave device 500 through the GUI screen. Recognize.

Thereafter, as illustrated in FIGS. 4A and 4B, a menu item (STB, DTV, AVR) corresponding to a user selectable function is selected, and wake-up / sleep reservation of the item is set. In this case, the memory 405 stores reservation states and times set for the plurality of slave devices 500.

Thereafter, the main processor 402 performs steps S102 to S103 of counting the reservation time set for each slave device 300 and 500 from the master device 100 and 400.

In addition, when the main processor 402 reaches the scheduled time, the main processor 402 determines whether it is in the wake-up mode or the sleep mode reservation state, and checks the address and the connection state of the corresponding slave device 300 or 500 through bidirectional communication. Steps S104 to S105 are performed (S104 to S109).

In this case, bidirectional communication is performed between the master device 400 and the slave device 500 through the HDMI CEC communication between the respective HDMI connection units 408 and 502 to check the address and the connection state.

In addition, the main processor 402 switches each of the corresponding slave devices 500 into a wake-up mode or a sleep mode as the scheduled time arrives.

Accordingly, the HDMI transmitter 406 of the master device 400 receives audio / video data from the main processor 402 and transmits the audio / video data to the slave device 500 through the HDMI connector 408.

In this case, the plurality of slave devices 300 have different identification addresses, and the master device 400 and the slave device 500 are directly connected to the respective HDMI connection units 408 and 502. (See FIG. 2) The two-way communication is performed between the master device 400 and the slave device 500 through the HDMI CEC communication to confirm the address and the connection state.

In addition, as shown in FIG. 1, the master device 100 may check the address and the connection state through the switching unit 200 to select the reserved slave device 300.

Thereafter, the step S106 to S108 (S110 to S112) is performed to switch the slave device 300 or 500 to the wake-up mode or the sleep mode according to the reserved state.

In this embodiment, it is obvious that two or more PIP screen areas may be displayed on the screen by changing the system program of the receiver.

The present invention described above can be applied not only to flat panel display devices such as PDPs and LCDs, but also to set-top boxes, projection TVs, general TVs, monitors, and other video devices, and the same applies to analog TVs, digital TVs, and satellite TVs. can do. It is needless to say that the present invention can be applied to both NTSC, PAL, and SECAM.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. 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 scope of the appended claims.

1 is a block diagram illustrating a wake-up / sleep reservation system of a digital TV slave device using bidirectional communication according to the present invention.

Figure 2 is a block diagram showing in detail the HDMI connection between the master device and the slave device according to the present invention.

3 is a plan view showing a remote control according to an embodiment of the present invention.

4A and 4B illustrate an embodiment of a GUI screen configuration of a wakeup / sleep reservation setup process according to the present invention;

5 is a control flowchart illustrating a wakeup / sleep reservation method for a digital TV slave device using bidirectional communication according to the present invention.

Description of the Related Art

100, 400: master device 110, 408: HDMI connection

200: switching unit 300, 500: slave device

310, 502: HDMI connector 401: user command input unit

402: main processing unit 405: memory

Claims (8)

In a system in which one master device and multiple slave devices are connected, The master device reserves a wake-up or sleep mode state of each of the plurality of slave devices and each time, sets a reservation time set for each slave device, and wakes up when the reserved time is reached. Determining whether the device is in an up mode or a sleep mode reservation state, checking an address and a connection state of the corresponding slave device through bidirectional communication, and switching the corresponding slave device to a wakeup mode or a sleep mode according to the reserved state; The plurality of slave devices are switched to a wake up mode or a sleep mode under the control of the master device. The one master device and the plurality of slave devices include respective HDMI connection units, and the bidirectional communication is performed through the HDMI CEC communication between the respective HDMI connection units. Up / sleep reservation system. The method according to claim 1, The master device, A memory for storing reservation states and times set for the plurality of slave devices; And A main processor configured to count the reservation time, determine a wake-up or sleep mode reservation state, check an address and a connection state of a corresponding slave device, and switch each of the corresponding slave devices into a wake-up mode or a sleep mode; Wake-up / sleep reservation system of a digital TV slave device using a two-way communication comprising a. The method according to claim 1, The plurality of slave devices have different identification addresses, And a switching unit configured to check the address and the connection state from the master device and select a corresponding slave device reserved. 2. The wake-up / sleep reservation system of a digital TV slave device using bidirectional communication. delete In a control method of a system in which one master device and a plurality of slave devices are connected, Reserving a wake-up or sleep mode state and each time of the master device and the plurality of slave devices in the master device; Counting a reservation time set for each slave device by the master device; Determining whether it is in the wake-up mode or in the sleep mode reservation state and confirming an address and a connection state of the corresponding slave device through bidirectional communication; Switching the corresponding slave device to a wake-up mode or a sleep mode according to the reserved state; The bidirectional communication is a wake-up / sleep reservation method for a digital TV slave device using a two-way communication, characterized in that via the HDMI CEC communication. 6. The method of claim 5, The master device, the reservation state and time set for the plurality of slave devices in the memory, characterized in that the wake-up / sleep reservation method of the digital TV slave device using the two-way communication. 6. The method of claim 5, The plurality of slave devices have different identification addresses, and the switching unit checks the address and the connection state from the master device and selects the corresponding slave device that is reserved. How to book up / sleep. delete

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