KR20130008172A - Method for changing to wake up mode at external device and mobile terminal docking thereat - Google Patents

Abstract

PURPOSE: A method for switching a wake-up mode of a portable terminal docked to an external device is provided to maintain a previous state of switching the portable terminal and the external device to a sleep mode when the sleep mode is switched to the wake-up mode. CONSTITUTION: An external device in a sleep mode senses key input(S110). If the key input is sensed, the external device is waken up(S120). A portable terminal senses a predetermined electric signal generated by the waken external device(S140). The portable terminal in the sleep mode is waken up by the predetermined electric signal(S125). [Reference numerals] (AA) Portable terminal; (S100,S105) State: sleep mode; (S110) Sensing a key event; (S120) Wake up mode conversion; (S125) CPU wake up; (S130,135) State: performing wake up; (S150) Connecting USB (D+,D-); (S155) Starting TMDS signal transmission; (S160) Transmitting a connection establishment startup message; (S165) Transmitting a connection establishment startup message Ack

Description

Method for Changing to Wake Up Mode at External Device and Mobile Terminal Docking Thereat}

The present invention relates to a method in which a portable terminal and an external device docked with each other are switched to a wake-up mode.

As semiconductor and wireless communication technologies are gradually developed, portable terminals have various additional functions such as cameras, MP3s, the Internet, games, etc., in addition to basic telephone call functions, thereby enabling the use of portable terminals. In recent years, smart phones, which have been enhanced with such functions, have begun to spread, and various application programs that can be used in smart phones have been developed in line with this trend.

However, since the portable terminal has to consider portability and mobility, there is no limit to the size of the terminal, and thus there is a problem in that the screen size, resolution, speaker performance, etc. are also limited.

In the prior art, an external device (aka, docking station) having a form of a laptop or a computer that can be used by connecting the portable terminal in order to utilize data, sound source files, contents, etc. stored in the portable terminal in a better use environment is provided. The external device has been used to output data, sound source files, contents, etc. stored in the portable terminal to a larger screen and a speaker having better performance.

In general, the mobile terminal and the external device operate by using a battery, and thus, when the mobile terminal and the external device are not used for a certain time, the portable terminal and the external device are switched to the sleep mode to reduce power consumption. In order to allow the mobile terminal and the external device to perform normal operation again in the sleep mode, the mobile terminal and the external device must be switched to the wake up mode. When the mobile terminal and the external device are docked, the mobile terminal and the external device The devices need to perform the transition to the wake up mode in consideration of each other's states.

Republic of Korea Patent Publication No. 10-2005-0120161

The present invention provides a method in which a portable terminal and an external device docked with each other are switched from a sleep mode to a wake-up mode.

According to an aspect of the present invention, a method for switching an external device docked with each other and a mobile terminal into a wake-up mode, the method comprising: sensing a key input by the external device in a sleep mode; If the key input is detected, waking up the external device in a sleep mode; Sensing, by the portable terminal, a predetermined electrical signal generated by the wake-up external device; And waking up the portable terminal in the sleep mode by the predetermined electrical signal received.

In an embodiment, the predetermined electrical signal may be a reset signal via VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.

In an embodiment, the waking up of the external device in the sleep mode may include waking up of the subdevice in the sleep state when the subdevice of the external device is in the sleep state. The wake-up mode switching method may further include activating, by the wake-up external device, a USB data transmission channel between the external device and the portable terminal.

In an embodiment, the waking up of the mobile terminal in the sleep state may include waking up of the subdevice in the sleep state when the subdevice of the mobile terminal is in the sleep state. The wake-up mode switching method may further include activating, by the wake-up portable terminal, an HDMI data transmission channel between the external device and the portable terminal.

In one embodiment, the wake-up mode switching method, the mobile terminal, the step of obtaining information about the first sub-device included in the external device; Acquiring, by the portable terminal, information about a second sub device included in the portable terminal and corresponding to the first sub device; Reconfiguring, by the portable terminal, a sub device control path such that a predetermined event generated by the first sub device is processed in the portable terminal or the first sub device performs a predetermined control operation; And acquiring, by the external device, state information of the second sub device, and changing the state of the first sub device to the state of the second sub device.

The method may further include transmitting state information of the second sub device to the external device such that the state of the first sub device is changed to the state of the second sub device. It may further include.

In one embodiment, the wake-up mode switching method may further include, after acquiring the information on the second sub device, deactivating the second sub device by the portable terminal.

In an embodiment, the reconfiguring of the sub device control path may include a handler included in the portable terminal to process an event generated by the first sub device or a control function included in the portable terminal. And causing the first sub device to perform a predetermined operation.

According to an aspect of the present invention, a method of switching a portable terminal docked with an external device into a wake-up mode, the method comprising: detecting, by the portable terminal, a predetermined electrical signal generated by the wake-up external device; Waking up the mobile terminal by the predetermined electrical signal; Acquiring, by the portable terminal, information about a first sub device included in the external device; Acquiring, by the portable terminal, information about a second sub device included in the portable terminal and corresponding to the first sub device; And reconfiguring a sub device control path such that a predetermined event generated by the first sub device is processed at the portable terminal or the first sub device performs a predetermined control operation at the portable terminal. A wake up mode switching method is provided.

According to an aspect of the present invention, a method for switching an external device docked with a portable terminal to a wake-up mode, the external device, in a sleep mode, detecting a key input; Waking up the external device when a key input is detected; Transmitting, by the external device, a predetermined electrical signal to the portable terminal such that the portable terminal wakes up; Wherein the external device is configured such that a predetermined event generated by a first sub device included in the external device is reconfigured in a sub device control path of the portable terminal is processed in the portable terminal, Transmitting information about the first sub-device to the mobile terminal so as to perform the first sub-device; Acquiring, by the external device, state information about a second sub device included in the portable terminal and corresponding to the first sub device; And changing, by the external device, the state of the first sub-device to the state of the second sub-device.

According to an aspect of the present invention, a portable terminal docked with an external device, the docking interface unit; A wake-up signal detector configured to sense a predetermined electrical signal generated by the wake-up external device through the docking interface unit; A portable terminal mode converter configured to wake up the portable terminal when the predetermined electrical signal is detected by the wake up signal detector; A second sub device corresponding to the first sub device included in the external device; And when the portable terminal is woken up, acquires information on the first subdevice and information on the second subdevice, so that a predetermined event generated by the first subdevice is processed in the portable terminal, or A portable terminal including a control route management unit for reconfiguring a sub device control path so that the first sub device performs a predetermined control operation.

In one embodiment, the portable terminal mode conversion unit, when the sub device of the portable terminal is in the sleep state, the sub device in the sleep state to wake up, the portable terminal, the external device is wake-up The docking agent may further include a docking agent configured to activate an HDMI data transmission channel between the external device and the portable terminal.

In an embodiment, the predetermined electrical signal may be a reset signal via VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.

In one embodiment, the control route management unit, the handler included in the portable terminal to process the first event generated by the first sub-device or the control function included in the portable terminal is the first sub-device By performing the first operation, the sub device control path can be reconfigured.

In an embodiment, the portable terminal may be configured to change the state of the first sub device to the state of the second sub device when the portable terminal wakes up. The apparatus may further include a docking agent for transmitting information and deactivating the second subdevice.

According to an aspect of the present invention, an external device docked and connected to a portable terminal, comprising: a key input sensing unit for sensing a key input; An external device mode converter configured to wake up the external device when a key input is detected by the key input detector in a sleep mode state; A docking interface unit configured to transfer a predetermined electrical signal to the portable terminal to wake up the portable terminal and the external device when the external device wakes up; And transmit information about the first subdevice to the portable terminal so that a predetermined event generated by one sub device is processed in the portable terminal or the first sub device performs a predetermined control operation. Provided by an external device including a docking management unit that is included in the acquiring state information on the second sub-device corresponding to the first sub-device, to change the state of the first sub-device to the state of the second sub-device do.

In an example embodiment, the external device mode converter may enable the subdevice in the sleep state to wake up when the subdevice of the external device is in the sleep state, and the docking manager may wake up the external device. In this case, the USB data transmission channel between the external device and the portable terminal can be activated.

In an embodiment, the predetermined electrical signal may be a reset signal via VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.

According to an embodiment of the present invention, a portable terminal and an external device docked with each other provide a method of switching from a sleep mode to a wake-up mode.

According to an embodiment of the present invention, there is provided a method in which a portable terminal can be switched to a wake-up mode only by an operation on an external device without a separate operation on the portable terminal.

According to an embodiment of the present invention, when the transition from the sleep mode to the wake-up mode, it provides a method for ensuring that the mobile terminal and the external device maintains the state before the transition to the sleep mode.

1 is an example of a block diagram of a portable terminal capable of executing a wake-up mode switching method according to an embodiment of the present invention.
2 is an example of a block diagram of an external device in which a wake-up mode switch method according to an embodiment of the present invention can be executed.
3 is an example of an external perspective view of the docking device of FIG. 2.
4 is an example of a subdevice identification information table.
5 illustrates a configuration of a docking interface unit.
6 to 7 are flowcharts illustrating a wake-up mode switching method according to an embodiment of the present invention.
8 is a block diagram illustrating a control path when the docking connection is released.
9 is a block diagram illustrating a control path in the docking connection.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

In this specification, a terminal is also a system, device, subscriber unit, subscriber station, mobile, mobile terminal, remote station, remote terminal, access terminal, user terminal, terminal, communication device, user agent, user device or user equipment (UE). It can also be called). Wireless terminals include mobile phones, smart phones, personal digital assistants (PDAs), mobile phones, satellite phones, wireless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, hands with wireless connectivity And a processing device connected to a handheld device, a portable multimedia player (PMP), navigation, or other wireless modem.

In the present specification, the external device may be implemented in the form of a device having a structure capable of docking a laptop computer, a tablet PC, a pad with a touch screen, a pad with a screen and a keypad, and other portable devices. .

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

[Description of Fig. 1]

1 is a block diagram of a portable terminal capable of executing a connection establishment method according to an embodiment of the present invention. 5 is a diagram illustrating a configuration of a docking interface unit.

Hereinafter, an example of a mobile terminal capable of executing the connection establishment method of the present invention will be described with reference to FIG. 5 based on the block diagram of FIG. 1.

Referring to FIG. 1, a mobile terminal 100 coupled to an external device according to an embodiment of the present invention may include a wireless communication unit 110, an A / V input device unit 120, a user input unit 130, and a sensing unit ( 140, the image processor 140, the internal storage unit 150, the external storage unit 155, the image output device 160, the audio output device 165, the docking interface unit 180, and the controller 190. And a power supply unit 105. The power supply unit 105 may include a battery for charging the terminal.

However, some of the components in FIG. 1 may not necessarily be necessary components necessary for the implementation of the present invention. Also, according to the embodiment, the mobile terminal 100 may include more components Of course it is possible.

Hereinafter, the components will be described in order.

The wireless communication unit 110 performs a wireless communication function between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another terminal. According to an embodiment of the present invention, the portable terminal 100 may be a mobile communication terminal, and in this case, the wireless communication unit 110 may include a mobile communication module. Also, according to the type of portable terminal, the wireless communication unit 100 may include a communication device such as a short range wireless communication module, a wireless internet module, a broadcast receiving module, a GPS receiving module, or the like.

In addition, in the present specification, the mobile terminal 100 is illustrated as including a device for wireless communication, such as a mobile phone, a smart phone, etc., according to the present invention, the mobile terminal docked and coupled to the external device does not necessarily include a wireless communication device. The terminal may be a terminal including a wired communication device or a terminal that does not support a communication function.

The A / V input unit 120 is for inputting an audio signal and / or a video signal, and may include a camera and a microphone.

The user input unit 130 is a user interface for receiving various commands from a user, and its implementation is not particularly limited. For example, the user input unit 130 may include a keypad input device 134 or / and a touch input device 132 such as a touch pad or a touch screen.

The sensing unit 140 may include various sensors such as an acceleration sensor 142 and an illuminance sensor 144 as well as a gyro sensor, a proximity sensor, a contact sensor, and the like, to implement additional functions / operations of the mobile terminal 100. do.

The internal storage unit 150 and the external storage unit 155 are used as a data storage location of the mobile terminal 100, and the internal storage unit 150 may be implemented as RAM, SDRAM, flash memory, or the like. The external storage unit 155 may be implemented as an SD card, a USB memory, or the like. In particular, according to an embodiment of the present invention, the external device 200 in a docked state may also function as the external storage unit 155.

The image output device 160 may be implemented as a liquid crystal panel, an AMOLED, and the like, and the audio output device 165 may include a speaker, a receiver, a buzzer, and the like. The backlight device 270 is a light emitter that emits light behind the display in order to improve readability in the display. It can be implemented as.

When the docking interface 180 is physically docked with the portable terminal 100 and the external device 200, the docking interface unit 180 outputs the image data, the audio signal output, and the portable terminal from the portable terminal 100 to the external device 200. 100 and an external device 200 may include an interface for data input and output. To this end, the docking interface 180 may include an image input / output interface 182, an audio input / output interface 184, a data input / output interface 186, and the like, as shown in FIG. 1. Of course, in some embodiments, fewer or more interfaces may be included than the interfaces shown in FIG. 1. For example, the docking interface 180 may not include the audio input / output interface 184 according to the design. As another example, the docking interface unit 180 may be a power input terminal (not shown) which functions as a passage for receiving power from the external device 200 to the portable terminal 100 in a docked state with the external device 200. ) May be included. In addition, it is obvious that the docking interface unit 180 may further include additional interfaces according to a design scheme.

A detailed configuration example of the docking interface unit 180 is illustrated through FIG. 5. Referring to FIG. 5, according to another embodiment of the present invention, the docking interface unit 180 may be a high definition multimedia interface (HDMI) as an interface for image / audio input / output when docked with an external device 200. An example in which the Universal Serial Bus (USB) standard is used as a standard and an interface for data input and output is shown. In this case, the docking interface 180 may be provided with connectors for supporting HDMI and USB, respectively. However, FIG. 5 is just an example, and in addition, various interface configurations may be possible, as well as other video / audio input / output interface methods and data input / output interface methods other than HDMI and USB.

According to the embodiment of the present invention, by connecting with an electronic device or a household appliance having an HDMI or USB terminal through the docking interface unit 180 provided in the portable terminal 100, / Audio can be output through the video output device and the audio output device of the above electronic appliances or appliances. That is, according to the exemplary embodiment of the present invention, the HDMI or USB terminal of the docking interface unit 180 may also be used for general electronic devices (for example, TVs and monitors) that do not have the same configuration as the external device 200 to be described later. Through the screen of the portable terminal 100 can be transmitted to the electronic device.

The controller 190 controls the components of the mobile terminal 100 and the overall operation of the mobile terminal 100. In particular, in an embodiment of the present disclosure, the controller 190 may include a docking agent unit 192 that performs an operation control function of the portable terminal 100 according to the docking coupling with the external device 200. The docking agent unit 192 may exchange information with the docking management unit (identification number 292 of FIG. 2) of the external device 200 to be described later in order to perform a wake-up process of the portable terminal. In addition, the docking agent unit 192 transmits A / V (audio / video) data deactivated in the sleep mode in order to transmit a screen provided by the mobile terminal 100 to an external device when the mobile terminal 100 wakes up. You can also activate the channel. The docking agent 192 may be implemented as a software program. For example, the docking agent 192 may be implemented in a "application" layer of the OS hierarchy to implement a corresponding function. In addition, the controller 190 may configure various devices (hereinafter, referred to as “sub-devices) constituting the mobile terminal 100 when docked with an external device according to an embodiment of the present invention (in this specification, the external device 200 is illustrated). The touch input device 132, the keypad input device 134, the illuminance sensor 142, the acceleration sensor 144, and the backlight device 170 illustrated in FIG. 1 may be used as examples of the sub device. Instead, the control route management unit 194 may change the control path of the subdevice to control the subdevice included in the corresponding external device. A function performed by the control route manager 194 will be described in detail later with reference to FIGS. 8 to 9.

On the other hand, the wake-up signal detector 196 may detect a predetermined electrical signal generated by the wake-up external device 200 through the docking interface unit 180, the portable terminal mode switching unit 198 When the predetermined electrical signal is detected by the wake up signal detector 196, the mobile terminal may wake up.

[Description of Fig. 2]

2 is a block diagram of an external device in which the connection establishment method according to an embodiment of the present invention can be executed, and FIG. 3 is an example of an external perspective view of the external device of FIG. 2. Here, FIG. 3 illustrates an example of various appearance implementation designs for the external device, and the external device is not limited thereto.

Hereinafter, the case of FIG. 2 and FIG. 3 is demonstrated.

Referring to FIG. 2, the external device 200 may be a user such as an image output device 260, an audio output device 265, a backlight device 270, a touch input device 232, or a keypad input device 234. Sensing unit 240, storage unit 260, docking interface unit 250, power supply unit 205 and the docking management unit including the input device 230, the illumination sensor 242 or the acceleration sensor 244 and other various sensors The control unit 290 may include a 292 and a booting unit 294.

Some of the various apparatuses (ie, sub-devices) included in the external device 200 may correspond to sub-devices of the mobile terminal 100. In the present specification, the subdevice of the external device 200 and the subdevice of the mobile terminal 100 correspond to each other to perform the same or similar function when the same control command is given to both, or to perform the same event (or Event signal, I / O signal). Taking the portable terminal 100 and the external device 200 shown in FIGS. 1 and 2 as examples, the backlight device () of the portable terminal 100 and the backlight device 170 of the external device 200 are both turned on ( They emit light to the display device according to a turn on command and stop light emission according to a turn off command so that they may correspond to each other. In addition, since the illumination sensor 142 of the mobile terminal 100 and the illumination sensor 142 of the external device 200 both perform a sensing function by a turn on command and generate an illumination detection result value, these may also correspond. have. The acceleration sensor 144, the touch input device 132, the keypad input device 134, the external storage device 155, the image output device 160, and the audio output device 165 of the portable terminal 100 are each external. The acceleration sensor 244, the touch input device 232, the keypad input device 234, the storage device 250, the image output device 260, and the audio output device 265 of the device 200 may correspond to each other. have.

In this specification, the same terms are used between sub-devices corresponding to each other for convenience of description (for example, the illumination sensor 142 of FIG. 1 and the illumination sensor 242 of FIG. 2 or the audio output device 165 of FIG. 1). ) And the audio output device 265 of FIG. 2), and the meanings corresponding to each other are not limited to the term. In order to determine whether the mobile terminal 100 and the sub devices of the external device 200 correspond to each other, the mobile terminal 100 and the external device 200 may manage the sub device identification information according to a common protocol. . 4 illustrates an example of a table 101 of identification information of a sub device included in the mobile terminal 100 and a table 102 of identification information of a sub device included in the external device 200 according to the present invention. It is an illustration. 4, the portable terminal 100 and the external device 200 are connected to each other via a microphone (identification information value: 2), an illuminance sensor (identification information value: 4), an acceleration sensor (identification information value: A touch screen (identification information value: 7), a backlight device (identification information value: 10), and an internal storage device (identification information value: 11). The mobile terminal 100 and the external device 200 may determine which subdevices include each other and which subdevices correspond to each other by comparing identification values of respective subdevices.

When the portable terminal 100 and the external device are docked with each other, some sub-devices of the portable terminal 100 may be replaced with sub-devices of the corresponding external device. For example, when the docking connection is not established, the illumination sensor of the mobile terminal 100 operates to detect the illumination, but when the docking connection is made, the illumination sensor of the external device instead of the illumination sensor of the mobile terminal 100 detects the illumination. By sensing, the detected illuminance value is reported to the mobile terminal 100. A method of replacing the sub device of the mobile terminal 100 with the sub device of the external device will be described in detail later with reference to FIGS. 8 to 9.

Meanwhile, the external device 200 does not need to include all of the subdevices corresponding to the subdevices included in the mobile terminal 100 (or vice versa). Referring to FIG. 4 as an example, a wireless communication device (identification information value: 1), a camera (identification information value: 3), and a keypad device (identification information value: 6) included in the portable terminal are not included in the external terminal. Can be. Even when the mobile terminal 100 is docked and connected to the external device 200, the sub-devices may perform operations in the same manner as in the case where the portable terminal 100 is not docked. That is, the mobile terminal 100 communicates through the wireless communication device provided in the mobile terminal regardless of whether the docking connection is connected, and can take a picture / video by using the camera provided in the mobile terminal.

Hereinafter, the docking interface unit 280 and the control unit 290 will be described.

First, the docking interface unit 280 is physically docked with the docking interface unit 180 of the mobile terminal 100, so that the connector for forming a docking connection relationship between the mobile terminal 100 and the external device 200 ( connector) part. Accordingly, the docking interface unit 280 may be in a pair relationship with the docking interface unit 180 of the mobile terminal 100, in which case the same interface as the docking interface unit 180 of the mobile terminal 100 is provided. Configuration (see FIG. 5 above).

That is, the docking interface unit 280 may include a video input / output interface 282 for receiving image data from the portable terminal 100, an audio input / output interface 284 for receiving an audio signal, and the portable terminal 100 when docking is coupled. ) May include an interface 286 for inputting and outputting data. In addition, the docking interface unit 280 may include a docking detection unit (not shown) that detects a physical docking coupling with the portable terminal 100, and a power output unit that functions as a passage for supplying power to the portable terminal 100. Terminals, not shown).

According to an exemplary embodiment, as illustrated in FIG. 3, the docking interface 250 may be attached to a specific portion of the terminal insertion unit 281 provided to allow the portable terminal 100 to be inserted into the main body of the external device 200. Can be formed. That is, according to an embodiment of the present invention, the docking coupling between the external device 200 and the portable terminal 100 is such that the docking interface portions 180 and 280 of the two devices are physically coupled (or contacted) with each other. The mobile terminal 100 may be inserted into the terminal insertion unit 281 of the device 200.

3 illustrates a case where the portable terminal 100 is completely inserted into the terminal insertion unit 281, but according to the design of the terminal insertion unit 251, a portion of the portable terminal 100 (here. The docking interface 180 should be included). Of course, the physical docking coupling may be performed in such a manner that only the docking interface 180 is inserted. In addition, although FIG. 3 illustrates an external device 200 having a slide-type pad shape, the external device 200 may have various designs (for example, a notebook type other than a pad type, a bar type other than a slide type, etc.). Of course you can have.

The controller 290 controls each component of the external device 200 and the overall operation of the external device 200. In particular, in an embodiment of the present disclosure, the controller 290 may include a docking manager 292 performing an operation control function of the external device 200 according to the docking combination with the mobile terminal 100. The docking management unit 194 may be implemented as a software program to implement a corresponding function.

In addition, the docking management unit 292 may establish a host-device connection with the mobile terminal 100 in the docking coupling state. Accordingly, the external device 200 may provide the user with the same working environment as the user working environment (video and audio output environment / data input / output environment, etc.) in the portable terminal 100 in the docking coupling state. That is, in the docking combined state, the screen image of the mobile terminal 100 is output to the screen of the external device 200. To this end, the docking manager 292 turns on the screen output of the image output apparatus 260 when the docking coupling is detected for the first time, and the docking manager 292 of the portable terminal 100 at the docking coupling time received from the portable terminal 100. Data relating to a screen image may be output through the image output device 260. Meanwhile, the docking management unit 292 transmits information or various messages of the sub device to the docking agent unit 192 of the mobile terminal 100 or from the docking agent unit 192 to perform a wake-up process according to the present invention. Can be received. In addition, the docking management unit 292 may first activate a data transmission channel deactivated in the sleep mode in order to exchange information with the docking agent unit 192.

In addition, when receiving an input event (for example, a touch input event, etc.) from an input device of the external device 200 in the docking coupling state, the docking management unit 292, in response to the received input event, the portable terminal It may serve to generate and transmit an event signal used to control the operation of the 100 to the mobile terminal (100).

On the other hand, the key input detection unit 296 included in the control unit 290 may detect a key input input by the user through the touch input device 232 or the keypad input device 234, and may also be applied to the external terminal 200. It may also sense the input of a hold key or volume control key, for example, to command a particular action. The controller 290 may include an external device mode converter 298 that wakes up the external device 200 when a key input is detected by the key input detector 296.

According to an embodiment of the present invention, the external device 200 is a kind of dummy device that does not perform any operation in the standalone state (that is, cannot perform any operation / function useful to the user). Can be. When configured as above, the external device 200 can be equipped with only the minimum possible functions (ie, display control, touch input control, etc.) and a minimum hardware configuration, so that a user can use a conventional tablet PC / pad / laptop product. While the same work environment is implemented, there may be an advantage of using a lower cost product.

Of course, in another embodiment of the present invention, the external device 200 is implemented as a device that may be driven independently by mounting its own OS (here, the OS refers to an OS that enables stand-alone operation). May be For example, the electronic device may be an electronic frame or a video / MP3 player when the mobile terminal 100 is separated from the mobile terminal 100, and the mobile terminal 100 may be extended to a function of the mobile terminal. In this case, of course, the hardware specification will require higher specifications than the form described above (which cannot operate independently).

So far, the portable terminal 100 and the external device 200 have been described as two devices docked and coupled according to an embodiment of the present invention. Hereinafter, the portable terminal 100 and the external device 200 which are docked are connected to each other. A method of switching from the sleep mode to the wake up mode will be described.

In particular, until now, the case in which the portable terminal and the external device (ie, the external device) are docked and connected by the physical coupling between the docking interface has been mainly described. However, as used herein, the term "dock connection" refers to a docking connection using a medium intermediary device (Hub), a specific connection cable (for example, an HDMI cable, in addition to a physical direct coupling method between docking interfaces provided in each device as described above). It is also clarified that docking connections using) are possible.

6 and 7 are flowcharts illustrating a connection establishment process according to an embodiment of the present invention when the portable terminal 100 and the external device 200 are physically docked and coupled. Hereinafter, a method of establishing a connection between the external device 200 and the mobile terminal 100 according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5 with reference to FIGS. 6 and 7.

[Description of FIGS. 6 and 7]

In one embodiment, the mobile terminal 100 and the external device 200 may have a state associated with the wake-up mode switching process, in a particular embodiment, the docking agent unit 192 of the mobile terminal 100 ) And the docking manager 292 of the external device 200 may manage the predetermined state. First, referring to FIG. 6, when the portable terminal 100 and the external device are in the sleep mode, the portable terminal 100 and the external device may be in the 'sleep mode' state (S100 and S105). In an embodiment, when the mobile terminal 100 and the external device 200 are in a sleep mode, various devices included in the mobile terminal 100 and the external device 200 due to a reduction in power consumption, etc. ( That is, the sub device may be in a sleep state in which power supply is cut off or is supplied with only enough power to perform a minimum function (for example, a wake-up function of the corresponding sub device). The docking interfaces 180 and 280 of the external device 200 may block signal transmission except for a predetermined terminal. For example, as shown in FIG. 5, when the docking interfaces 180 and 280 include a USB interface, the USB data transfer channel may be deactivated (for example, the USB D + and D- connections may be released. State). As another example, when the docking interfaces 180 and 280 include the HDMI interface, the HDMI data transmission channel may be deactivated. In particular, when the HDMI data transmission channel is activated, the battery consumption of the mobile terminal 100 may increase. Therefore, the HDMI data transmission channel may be deactivated in the sleep mode.

However, even in this case, signal transmission through all terminals does not have to be blocked, and signal transmission through some terminals (for example, USB VBUS or HDMI 5V Power) may not be blocked.

When the external device 200 receives a key input from the user in the sleep mode state, the external device 200 detects the key input (S110) and may wake up. When the external device 200 wakes up, if the sub device of the external device 200 is in the sleep state, the sub device in the sleep state may wake up. In particular, when the CPU wakes up, if the CPU of the external device 200 is in the sleep mode, the CPU wakes up (S120). On the other hand, in a specific embodiment, it may wake up only when a specific key input is received. In this case, the specific key may be a hold key.

When the external device 200 wakes up, the state of the external device 200 may be transitioned to a 'wake up' state (S130).

In addition, when the external device 200 wakes up, the external device 200 may transmit a predetermined electrical signal to the mobile terminal 100 to wake up the portable terminal docked (S140). At this time, the predetermined electrical signal may be a reset signal via VBUS of USB (temporarily off and then supplying power again through USB VBUS) or HDMI CEC pin or HDMI utility pin (HDMI pin 14). It may be an interrupt signal.

As described above, when the portable terminal 100 and the external device 200 are in the sleep mode, the data transmission channel between the portable terminal 100 and the external device may be deactivated, and thus the external device 200 may wake up. , The disabled data transfer channel can be activated. In a particular embodiment in which data is exchanged between the portable terminal 100 and the external device 200 via USB, the step of activating a USB data transfer channel (eg, connecting USB D +, D-) is to the present invention. It may be included in the wake-up mode switching method according to (S150).

On the other hand, the mobile terminal 100 receiving a predetermined electrical signal from the external device 200 may be always woken up by a predetermined electrical signal (S125). When the mobile terminal 100 wakes up, if the sub device of the mobile terminal 100 is in the sleep state, the sub device in the sleep state may wake up. In particular, if the CPU of the mobile terminal 100 is in the sleep mode during wakeup, the CPU wakes up (S125).

As described above, when the portable terminal 100 and the external device 200 are in the sleep mode, the A / V data transmission channel between the portable terminal 100 and the external device may be deactivated, so that the portable terminal 100 During wake up, the disabled A / V data transmission channel can be activated. In a particular embodiment of exchanging A / V data with each other via HDMI between the mobile terminal 100 and the external device 200, activating an HDMI data transmission channel may be included in the wake-up mode switching method according to the present invention. . In this case, the activation of a channel may mean a state in which data can be transmitted or a state in which data is transmitted through a corresponding channel. In particular, in order to activate the HDMI data transmission channel, the portable terminal 100 may issue a command to start transmitting a Transition Minimized Differential Signaling (TMDS) signal to the HDMI module (S155).

Thereafter, the state of the portable terminal 100 may transition to 'Wakeup in progress' (S135), and the external device 200 sends a connection establishment start message to continue performing the remaining wakeup process. It may transmit to (160). Then, the mobile terminal 100 may send an acknowledgment (Ack) to the start message for establishing connection (165) and continue the remaining connection establishment process.

Before the mobile terminal 100 and the external device 200 are switched to the sleep mode, the mobile terminal 100 and the external device undergo a predetermined connection establishment process, instead of some devices included in the mobile terminal, instead of the corresponding external device. The control path can be reset to use the device instead. However, when the portable terminal 100 and the external device are switched to the sleep mode and wake up again, the mobile terminal 100 and the external device 200 are switched to the wake up mode by performing the predetermined connection establishment process again. Thereafter, it is necessary to ensure that the state before sleep is maintained.

FIG. 7 is a flowchart illustrating the connection establishment process that may proceed after the process shown in FIG. 6. 7, the external device 200 may transmit predetermined information so that the mobile terminal 100 may acquire the sub device information included in the mobile terminal 100 (S170). The predetermined information may be a detailed information list of each sub device included in the external device 200, or may be information similar to a table of identification number 201 shown in FIG. 4. Meanwhile, in a particular embodiment, the predetermined information may be identification information of the external device 200 itself, as shown in FIG. 8. In this case, the portable terminal may include a table (eg, a database) for storing information of various external devices compatible with the mobile device (ie, properly docked) and sub-devices included in the external device. In addition, the database may be searched using the received identification information of the external device 200 to obtain information on the sub-device included in the external device 200.

Thereafter, the mobile terminal 100 obtains a list of subdevices included in the external device 200 by using the obtained subdevice information of the external device 200, and among the subdevices included in the list, docking connection Information on sub-devices (hereinafter, referred to as 'first sub-devices') of the external device 200 which the mobile terminal intends to use in place of the devices included therein (for example, the identification information value of the first sub-device). List) may be transmitted to the external device 200 (S180).

Thereafter, the external device 200 may transmit a connection establishment end message (S190).

The mobile terminal 100 obtains information on sub-devices (hereinafter referred to as 'second sub-devices') of the mobile terminal corresponding to the first sub-device, in particular, state information of the second sub-device (S200). The external device 200 may transmit the data to the external device 200 (S205). Then, the external device 200 reflects the received information of the second sub device to the first sub device so that the state of the first sub device of the external device 200 is the same as that of the second sub device of the mobile terminal 100. It can be changed to (S210). For example, the first sub device is an audio output device included in the external device 200, the second sub device is an audio output device of the mobile terminal 100 corresponding thereto, and the audio output device of the mobile terminal before docking is If it is off or the volume is in the first stage, after the docking connection is established, the state of the audio output device of the external device 200 to replace the audio output device of the mobile terminal 100 is the audio output of the mobile terminal. Like the state of the device, it is set to off or one volume. By doing so, the portable terminal can maintain consistency before and after docking, and the user can eliminate the inconvenience of resetting the external device after docking.

The mobile terminal 100 reconfigures the sub-device control path to perform the function performed by the second sub device before docking and the first sub device after docking (S220). The control of the subdevice is to control the event (hereinafter referred to as 'event control') and to perform a specific function when the event (event signal, also called I / IO signal) occurs from the subdevice. It can be divided into control for giving a command (hereinafter referred to as 'command control'). When key input is made through the touch panel, an event handler (also called a signal handler) corresponding to a key input event is called to handle an event. An example of event control is to execute a command to turn on / off a backlight. An example of command control is to issue a brightness value adjustment command to decrease or adjust brightness.

In one embodiment, a predetermined second event occurs by the second subdevice of the mobile terminal 100 before docking, but after docking, the second event corresponds to the second event by the first subdevice of the external device instead of the second event. The first event will occur. Therefore, after docking connection, the mobile terminal 100 needs to reconfigure the event control path to process the first event instead of processing the second event. In another embodiment, before docking, the portable terminal 100 should give a predetermined control command to the second device due to a user's input or need for operation of the portable terminal 100, but after docking the second device instead of the first device. It is necessary to reconfigure the command control path so as to issue the control command. This control path reconfiguration will be described in more detail later with reference to FIGS. 10 to 11.

After reconfiguring the control path, the mobile terminal 100 may deactivate the second subdevice by suspending the second subdevice or by powering off the second subdevice (S230).

Thereafter, the mobile terminal 100 may transmit a connection establishment end message response (Ack) to the external device 200 to inform that the connection establishment process has been performed (S195), and may transition the state to the 'connected' state. (S250).

The external device 200 may also change its state to a 'connected' state (S255), and may transmit an HDMI display start command to the HDMI module so that the HDMI A / V data signal input from the mobile terminal can be displayed. There is (S240).

Until now, not all steps of the process described with reference to FIGS. 6 to 7 are essential, and some steps may not correspond to components necessary for the implementation of the present invention. For example, the step in which the mobile terminal 100 or the external device 200 transitions its state is for the convenience of explanation or implementation and is not necessarily required, but is a connection establishment start / end message or connection establishment start / end. The same is true for sending message responses.

[Description of FIGS. 8 and 9]

9 is a block diagram illustrating a control path before establishing a docking connection, and FIG. 10 is a block diagram illustrating a control path after establishing a docking connection. In FIG. 9 and FIG. 10, the arrows indicated by broken lines indicate the paths of event control generated and transmitted from the sub-devices, and the arrows indicated by solid lines indicate commands from the App to the sub-devices due to user input or operational needs of the mobile terminal. Indicates the path of control.

9 and 10, the reconfiguration of the control path according to the docking connection establishment during the wake-up process according to the present invention will be described.

First, referring to FIG. 9, a control command before establishing a docking connection starts from an application layer, and passes through a framework layer, a hardware abstraction layer (HAL), and a control route management unit 194. It is delivered to the device driver of the second sub device, and when an event occurs in the second sub device, it is delivered to the application layer through the device driver of the kernel, the control route manager 194, the HAL, and the framework layer. In a typical portable terminal, a control command / event signal will come and go between the kernel device driver and the HAL without passing through the control route manager 194. However, in the case of the portable terminal 100 performing a connection establishment process according to the present invention, the control path is controlled. The control route management unit 194 may be further included for reconfiguration.

When the docking connection is established between the mobile terminal 100 and the external device, the control command transmitted to the control route management unit 194 through the application layer and the framework layer HAL is included in the external device, not the device driver of the second subdevice. The control signal is reconfigured to be delivered to the device driver of the first subdevice or to generate an event signal generated in the first subdevice to the control route management unit 194 and to be processed by the application layer via the HAL framework layer.

In one embodiment, an event signal or a control command may be transmitted through the docking agent unit 192 of the mobile terminal 100 and the docking manager 292 of the external device 200. It can be changed as shown in 10. That is, when the docking connection is established, the control route manager 194 is a docking agent that transmits and receives a signal with the external device 200 to send a control command to be transmitted to the device driver of the first subdevice to be transmitted to the second subdevice. To pass. Meanwhile, the event signal generated by the first subdevice is transmitted to the docking agent through the docking manager, and the docking agent may inform the control route manager 194 that an event has occurred from the first subdevice.

In a particular embodiment, the docking agent unit 192 registers a given module (or function) to receive control commands from the control route manager 194 and the control route manager 194 controls by calling the predetermined module. You can pass a command. In this embodiment, the module of the kernel driver for controlling the second sub device and the corresponding module of the docking agent unit 192 corresponding to the control of the second sub-device at the time of initialization of the portable terminal are registered in the control route management unit 194, and the control route management unit 194. ) Can reconfigure the control path by determining which module to call depending on whether the docking connection is established.

In another specific embodiment, the docking agent unit 192 may call the predetermined module (or function) implemented in the control route management unit 194 to inform the control route management unit 194 of the occurrence of the event. In this embodiment, the control route management unit 194 may determine which event from the kernel drive and the event from the docking agent to process according to whether the docking connection is processed, and deliver the event to a handler for processing the event. . On the other hand, the handler may be implemented in the control route management unit 194, or may be implemented in a layer separate from the layer in which the control route management unit is located.

9 and 10 show that the control route management unit 194 is mounted in the kernel layer and the docking agent unit 192 is mounted in the application layer. However, in some embodiments, the control route management unit 194 is mounted in the HAL. The docking agent 192 may be mounted in the framework layer or the HAL. The docking management unit 292 of the external terminal may also be mounted in the framework layer or the HAL, unlike FIGS. 9 and 10.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. .

Claims (18)

An external device docked with each other and a portable terminal switch to a wake-up mode.
Sensing a key input by the external device in a sleep mode;
If the key input is detected, waking up the external device in a sleep mode;
Sensing, by the portable terminal, a predetermined electrical signal generated by the wake-up external device; And
Waking up the mobile terminal in the sleep mode by the predetermined electrical signal received
Wake-up mode switching method comprising a.
The method of claim 1,
The predetermined electrical signal is,
A wake-up mode switching method, which is a reset signal via VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.
The method of claim 1,
Wake up of the external device in the sleep mode,
If the sub device of the external device is in the sleep state, the sub device in the sleep state wakes up;
The wake-up mode switching method,
The wake-up mode switching method further comprises the step of activating the USB data transmission channel between the external device and the portable terminal.
The method of claim 1,
The waking up of the mobile terminal in the sleep mode may include:
When the sub device of the portable terminal is in the sleep state, the sub device in the sleep state wakes up;
The wake-up mode switching method,
The wake-up mode further comprises the step of activating the HDMI data transmission channel between the external device and the portable terminal by the mobile terminal.
The method of claim 1,
Acquiring, by the portable terminal, information about a first sub device included in the external device;
Acquiring, by the portable terminal, information about a second sub device included in the portable terminal and corresponding to the first sub device;
Reconfiguring, by the portable terminal, a sub device control path such that a predetermined event generated by the first sub device is processed in the portable terminal or the first sub device performs a predetermined control operation; And
Acquiring state information of the second sub device by the external device to change the state of the first sub device to a state of the second sub device;
Wake-up mode switching method further comprising.
The method of claim 5,
Transmitting state information of the second sub device to the external device such that the state of the first sub device is changed to the state of the second sub device.
Wake-up mode switching method further comprising.
The method of claim 5,
After acquiring the information on the second sub device,
Deactivating, by the portable terminal, the second sub device;
Wake-up mode switching method further comprising.
The method of claim 5,
The step of reconfiguring the sub device control path,
Causing a handler included in the portable terminal to process an event generated by the first sub device or having a control function included in the portable terminal perform a predetermined operation;
Wake-up mode switching method comprising a.
A mobile terminal docked with an external device enters the wake up mode.
Sensing, by the portable terminal, a predetermined electrical signal generated by the wake-up external device;
Waking up the mobile terminal by the predetermined electrical signal;
Acquiring, by the portable terminal, information about a first sub device included in the external device;
Acquiring, by the portable terminal, information about a second sub device included in the portable terminal and corresponding to the first sub device; And
Reconfiguring a sub device control path such that a predetermined event generated by the first sub device is processed in the portable terminal or the first sub device performs a predetermined control operation in the portable terminal.
Wake-up mode switching method comprising a.
A method for switching an external device docked with a mobile terminal to a wake up mode,
Detecting, by the external device, a key input in a sleep mode;
Waking up the external device when a key input is detected;
Transmitting, by the external device, a predetermined electrical signal to the portable terminal such that the portable terminal wakes up;
The external device may process a predetermined event generated by the first subdevice included in the external device because the subdevice control path of the portable terminal is reconfigured in the portable terminal or the first subdevice may perform a predetermined control operation. Transmitting information regarding the external device to the portable terminal to perform the operation;
Acquiring, by the external device, state information about a second sub device included in the portable terminal and corresponding to the first sub device; And
Changing, by the external device, a state of the first sub device to a state of the second sub device;
Wake-up mode switching method comprising a.
A portable terminal docked with an external device,
Docking interface unit;
A wake-up signal detector configured to sense a predetermined electrical signal generated by the wake-up external device through the docking interface unit;
A portable terminal mode converter configured to wake up the portable terminal when the predetermined electrical signal is detected by the wake up signal detector;
A second sub device corresponding to the first sub device included in the external device; And
When the portable terminal wakes up, information about the first subdevice and the information about the second subdevice are obtained to process a predetermined event generated by the first subdevice in the portable terminal or the Control route management unit for reconfiguring the sub-device control path so that the first sub-device performs a predetermined control operation
A mobile terminal comprising a.
The method of claim 11,
The portable terminal mode conversion unit,
When the sub device of the portable terminal is in the sleep state, the sub device in the sleep state to wake up,
The mobile terminal,
Docking agent unit for activating the HDMI data transmission channel between the external device and the portable terminal, when the external device is awake
A mobile terminal further comprising.
The method of claim 11,
The predetermined electrical signal is,
And a reset signal via a VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.
The method of claim 11,
The control route management unit,
The sub-device by causing the handler included in the portable terminal to process the first event generated by the first sub-device or by causing the control function included in the portable terminal to perform the first operation by the first sub-device. A mobile terminal for reconfiguring the control path.
The method of claim 11,
When the portable terminal wakes up, in order to change the state of the first sub device to the state of the second sub device, the state information of the second sub device is transmitted to the external device, and the second sub device Docking agent unit to disable
A mobile terminal further comprising.
An external device docked with a mobile terminal,
A key input detector for detecting a key input;
An external device mode converter configured to wake up the external device when a key input is detected by the key input detector in a sleep mode state;
A docking interface unit configured to transfer a predetermined electrical signal to the portable terminal to wake up the portable terminal; And
When the external device wakes up, the portable terminal reconfigures a sub device control path so that a predetermined event generated by the first sub device included in the external device is processed in the portable terminal or the first sub device is In order to perform a predetermined control operation, information about the external device is transmitted to the portable terminal, and state information about a second sub device included in the portable terminal and corresponding to the first sub device is obtained. Docking management unit for changing the state of the first sub-device to the state of the second sub-device
External device comprising a.
17. The method of claim 16,
The external device mode conversion unit,
When the sub device of the external device is in the sleep state, the sub device in the sleep state to wake up,
The docking management unit,
The external device activating a USB data transmission channel between the external device and the portable terminal when the external device wakes up.
17. The method of claim 16,
The predetermined electrical signal is,
An external device which is a reset signal via VBUS of USB between the portable terminal and the external device, an interrupt signal through an HDMI CEC pin, or an interrupt signal through an HDMI utility pin.

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