KR20090057846A - Apparatus and method for broadcasting on mobile terminal - Google Patents

Abstract

A broadcast output device and a method thereof using a mobile terminal and a broadcasting receiver are provided to allow a user to watch broadcasting program through a broadcasting receiving device such as television. An input unit(130) receives a key input from the outside. A near field communications module(114) transmits and receives wireless signal according to a local communications system. If the prescribed key is inputted through the input unit, a controller detects the channel information with reference to the service ID of the broadcasting system. The controller transmits the channel information with the external device through the local area communications module. The local communications system is one among an IrDA(Infrared Data Association), Bluetooth, an RFID(Radio Frequency ID) and ZigBee.

Description

Broadcast output device and method of mobile terminal {APPARATUS AND METHOD FOR BROADCASTING ON MOBILE TERMINAL}

The present invention relates to a mobile terminal, and more particularly, to a terminal for providing digital multimedia broadcasting.

The mobile terminal may be configured to perform various functions. Examples of such various functions include data and voice communication functions, taking pictures or videos through a camera, storing voices, playing music files through a speaker system, and displaying images or videos. Some mobile terminals include additional functionality to play games, while others are implemented as multimedia devices. Moreover, recent mobile terminals can receive broadcast or multicast signals to watch video or television programs.

In addition, efforts to support and increase the function of the mobile terminal continue. The foregoing efforts include not only changes and improvements in the structural components forming the mobile terminal, but also improvements in software or hardware.

Currently, digital audio broadcasting is being standardized and commercialized in various regions of the world, and digital audio broadcasting (DAB) is adopted in Europe and EARKA-147 (Eureka-147) is adopted as a digital audio broadcasting standard in Europe, and digital audio radio (DAR) is used in the United States. , Digital Radio Broadcasting (DRB) in Canada, and Digital Sound Broadcasting (DSR) in the International Telecommunication Union (ITU-R), and DMB (Digital Multimedia Broadcasting) in Korea. Is being used.

As such, digital audio broadcasting, which is being standardized and commercialized, has been developed for the next generation broadcasting, and is capable of receiving CD-level sound quality in a vehicle that runs at high speed even when transmitted at a low power due to strong radio wave environment and noise in urban areas. In addition, the concept of radio broadcasting has been expanded from the existing "listening broadcast" to "looking and listening broadcast". In addition to music broadcasting, various multimedia information such as news, traffic information, weather information, geographic location information, video information, etc. can be converted into text and graphics. Can transmit

DMB, or digital multimedia broadcasting, named by Korea's telecommunications industry, is capable of transmitting 1.5Mbit / sec of data to high-quality CD sound quality, text, graphics, and moving images beyond the conventional AM and FM radio formats as voice broadcasting becomes digital. It is the next generation broadcasting technology that provides various data services, bidirectionality, and excellent mobile communication signal quality.

On the other hand, in Europe, there is a DVB-H (Digital Video Broadcast-Handheld), which is a digital mobile broadcasting standard that is adapted to the concept of a mobile broadcasting service.

Most compatible with DVB-T based on DVB-T standard, but small, light, portable, battery-operated, capable of combining broadcast and ipdc (ip-data casting), and broadcast and mobile communications DVB-H was developed based on the model.

Disclosure of Invention An object of the present invention is to provide a method for continuously watching a broadcast which has been watched by a mobile terminal through a broadcast receiving apparatus such as a television, and a mobile terminal which performs the same.

As a task for achieving the above object, the present invention implements a method of subsequently watching the broadcast of the terminal in the broadcast receiving apparatus when the channel setting of the mobile terminal and the channel setting of the TV is the same.

In order to solve the above problems, the broadcast output method of the mobile terminal according to the present invention

When a predetermined key input is detected, the method includes detecting a channel of a broadcast currently being received, converting the detected channel information into a short range wireless communication signal, and transmitting the converted wireless signal to an external device.

Preferably, when the external device receives the wireless signal, the external device performs channel switching according to channel information of the wireless signal and outputs a corresponding broadcast.

As another object to achieve the above object, the present invention provides a method for continuously watching the broadcast of the terminal in the broadcast receiving apparatus in a manner of receiving frequency information from the broadcast receiving apparatus when the channel setting of the mobile terminal and the channel setting of the TV is different. Implement

In order to solve the above problems, the broadcast output method of the mobile terminal according to the present invention

When a predetermined key input is detected, receiving frequency information regarding channel setting from an external device, detecting a channel of an external device corresponding to a broadcast channel currently received by referring to the frequency information, and detecting the detected channel input; And converting the information into a short range wireless communication signal, and transmitting the converted wireless signal to an external device.

Preferably, when the external device receives the wireless signal, the external device performs channel switching according to channel information of the wireless signal and outputs a corresponding broadcast.

As another object to achieve the above object, the present invention implements a method of subsequently watching the broadcast of the terminal in the broadcast receiving apparatus by sending frequency information to the broadcast receiving apparatus when the channel setting of the mobile terminal and the channel setting of the TV is different. do.

In order to solve the above problems, the broadcast output method according to the present invention

Detecting a predetermined key input, detecting frequency information of a terminal related to a broadcast channel and channel setting of a currently receiving terminal, converting the detected information into a short range wireless communication signal, and converting the converted wireless signal Is transmitted to an external device.

Preferably, the broadcast output method includes the steps of: receiving, by the external device, the radio signal, detecting a channel of the external device corresponding to the broadcast channel of the terminal with reference to frequency information of the radio signal; The apparatus may further include performing channel switching to the corresponding channel and outputting a corresponding broadcast.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objects and other advantages of the invention will be realized in particular by the structure pointed out in the written description as well as the description and the appended drawings.

The present invention implements a mobile terminal that allows the user to continuously watch a broadcast on a TV. The present invention provides a method of allowing a TV to be continuously watched even when the channel setting of the TV is different from that of the mobile terminal.

The present invention enables a user to watch a broadcast more conveniently by allowing a user to watch a broadcast that has been viewed on the terminal on a TV only by simple terminal operation.

SUMMARY OF THE INVENTION The present invention has a focus on allowing a user to watch a broadcast, which has been viewed on a mobile terminal, in a simple key operation, on a broadcast receiving apparatus such as a television (hereinafter, referred to as a TV).

Hereinafter, the configuration of a preferred mobile terminal of the present invention with reference to the drawings as follows.

1 is a block diagram of a mobile terminal of the present invention.

The mobile terminal can be implemented in various forms. For example, the mobile terminal described herein includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. .

Referring to Figure 1, looking at the mobile terminal of the present invention from a functional point of view as follows.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface unit. It may include components such as the 170, the controller 180 and the power supply 190.

1 illustrates a mobile terminal having various components. However, not all illustrated components are essential components. The mobile terminal may be implemented by more components than the illustrated components, or the mobile terminal may be implemented by fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and a wireless communication system or wireless communication between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may select at least one of the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. It may include.

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives a broadcast signal using various broadcast systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link (MediaFLO). Digital broadcast signals may be received using digital broadcasting systems such as only), digital video broadcast-handheld (DVB-H), integrated services digital broadcast-terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above. The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

In addition, the mobile communication module 112 transmits and receives a radio signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call signal, or a text / multimedia message.

The wireless internet module 113 is for wireless internet access and may be embedded or external to the mobile terminal.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

In addition, the location information module 115 is a module for checking or obtaining the location of the mobile terminal. One example is the Global Position System (GPS) module. The GPS module receives location information from a plurality of satellites. Here, the location information may include coordinate information represented by latitude and longitude. For example, the GPS module can measure the exact time and distance from three or more satellites and accurately calculate the current position by triangulating three different distances. A method of obtaining distance and time information from three satellites and correcting the error with one satellite may be used. In particular, the GPS module can obtain not only the location of latitude, longitude, and altitude but also accurate time together with three-dimensional speed information from the location information received from the satellite.

The A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame of a still image or a moving image obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display unit 151.

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided according to a configuration aspect of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may have various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like. In particular, when the touch pad forms a mutual layer structure with the display unit 151 described later, this is called a touch screen.

The sensing unit 140 determines the current state of the mobile terminal 100 such as the open / closed state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, the acceleration / deceleration of the mobile terminal, and the like. Sensing and generating a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it is responsible for sensing functions related to whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to an external device, and the like.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the earphone port, and the like may be included in the interface unit 170.

Here, the identification module is a chip that stores a variety of information for authenticating the use authority of the mobile terminal 100, a user identification module (UIM), Subscriber Identify Module (SIM) '), A Universal Subscriber Identity Module ("USIM"), and the like. In addition, the device equipped with the identification module (hereinafter, 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port.

The interface unit 170 receives data from an external device or receives power and transmits the data to each component inside the mobile terminal 100 or transfers the data of the mobile terminal 100 to the external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays a photographed and / or received image, a UI, or a GUI.

As described above, when the display unit 13 and the touch pad form a mutual layer structure to form a touch screen, the display unit 151 may be used as an input device in addition to the output device. The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, or a three-dimensional display. 3D display). In addition, two or more display units 151 may exist according to the implementation form of the mobile terminal 100. For example, an external display unit (not shown) and an internal display unit (not shown) may be simultaneously provided in the mobile terminal 100.

The sound output module 152 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the sound output module 152 outputs a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed by the mobile terminal 100. The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of the event include call signal reception, message reception, key signal input, and the like. The alarm unit 153 outputs a signal for notifying occurrence of an event in a form other than an audio signal or a video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm unit 153 may output a vibration to inform this. Alternatively, when a key signal is input, vibration may be output as feedback to the key signal input. The user can recognize the occurrence of the event through the vibration output as described above. Of course, a signal for notification of event occurrence may be output through the display unit 151 or the sound output module 152.

The memory 160 may store a program for processing and controlling the controller 180, and a function for temporarily storing input / output data (for example, a phone book, a message, a still image, a video, etc.). You can also do The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM Random Access Memory (RAM) Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM) magnetic memory, It may include at least one type of storage medium of the optical disk. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory 150 on the Internet.

The controller 180 typically controls the overall operation of the mobile terminal. Perform related control and processing for voice calls, data communications, video calls, etc. In addition, the controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

The various embodiments described herein may be implemented in a computer readable recording medium using, for example, software, hardware or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing the functions. It may be implemented by the controller 180.

In a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that allow at least one function or operation to be performed. The software code may be implemented by a software application written in a suitable programming language. In addition, the software code may be stored in the memory 160 and executed by the controller 180.

In the above, the internal components of the mobile terminal related to the present invention have been described from a functional point of view. Next, with reference to Figures 2 and 3, we will look at the external components of the mobile terminal related to the present invention from a functional point of view. Hereinafter, for simplicity, a slider type mobile terminal is described as an example among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, and the like. This does not mean that the present invention is limited to the slider type mobile terminal, and may be applied to all types of mobile terminals including the above-described type.

2 is a front perspective view of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 of the present invention includes a first body 200 and a second body 205 configured to be slidable in at least one direction on the first body 200. In the case of a folder phone, the mobile terminal 100 will include a first body and a second body configured to be folded or unfolded on at least one side of the first body.

A state in which the first body 200 is disposed to overlap with the second body 205 may be referred to as a closed configuration, and as shown in the drawing, the first body 200 may be referred to as the second body 205. The exposed state of at least a portion of the N may be referred to as an open configuration.

The mobile terminal mainly operates in a standby mode in a closed state, but the standby mode may be released by a user's operation. In addition, although the mobile terminal operates mainly in a call mode or the like in an open state, the mobile terminal may be switched to a standby mode by a user's manipulation or a lapse of a predetermined time.

The case (casing, housing, cover, etc.) forming the exterior of the first body 200 is formed by the first front case 220 and the first rear case 225. Various electronic components are embedded in the space formed by the first front case 220 and the first rear case 225. At least one intermediate case may be further disposed between the first front case 220 and the first rear case 225.

The cases may be formed by injecting a synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the audio output module 152, the camera 121, or the first user input unit 210 may be disposed in the first body 200, specifically, the first front case 220.

The display unit 151 includes a liquid crystal display (LCD), organic light emitting diodes (OLED), and the like, which visually express information.

In addition, since the touch pad is superimposed on the display unit 151 in a layer structure, the display unit 151 may operate as a touch screen to enable input of information by a user's touch.

The sound output module 152 may be implemented in the form of a speaker.

The camera 121 may be implemented to be suitable for capturing an image or a video of a user or the like.

Like the first body 200, the case forming the exterior of the second body 205 is formed by the second front case 230 and the second rear case 235.

The second user input unit 215 may be disposed on the second body 205, specifically, on the front face of the second front case 230.

The third user input unit 245, the microphone 122, and the interface unit 170 may be disposed on at least one of the second front case 230 or the second rear case 235.

The first to third user inputs 210, 215, and 245 may be collectively referred to as a manipulating portion 130, and may be any type of tactile manner in which the user operates while giving a tactile feeling. Either may be employed.

For example, the user input unit may be implemented as a dome switch or a touch pad capable of receiving a command or information by a user's push or touch operation, or a wheel or jog method of rotating a key, or a manipulation method such as a joystick. May also be implemented.

In functional terms, the first user input unit 210 is for inputting a command such as start, end, scroll, etc., and the second user input unit 215 is for inputting numbers, letters, symbols, etc., The third user input unit 245 may operate as a hot-key for activating a special function in the mobile terminal (eg, a 'TV and then watch' function).

The microphone 122 may be implemented in a form suitable for receiving a user's voice, other sounds, and the like.

The interface unit 170 serves as a passage for allowing the mobile terminal according to the present invention to exchange data with an external device. For example, the interface unit 170 is wired or wirelessly, a connection terminal for connecting with an earphone, a port for short-range communication (for example, an infrared port (IrDA port), a Bluetooth port, a wireless LAN) Port (wireless LAN port, etc.), or at least one of power supply terminals for supplying power to the mobile terminal.

The interface unit 170 may be a card socket that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM) and a memory card for storing information.

The power supply unit 190 for supplying power to the mobile terminal is mounted on the second rear case 235 side.

The power supply unit 190 may be detachably coupled for charging, for example, as a rechargeable battery.

Figure 3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 3, a camera 121 may be additionally mounted on the rear surface of the second rear case 235 of the second body 205. The camera 121 of the second body 205 has a photographing direction substantially opposite to the camera 121 of the first body 200, and the camera 121 and the camera 121 of the first body 200. And may have different pixels.

For example, the camera 121 of the first body 200 has a low pixel (low resolution) so that the user's face is photographed and transmitted to the counterpart in a video call or the like, and the camera 121 of the second body 121 In general, it is preferable to have a high pixel (high resolution) because a normal subject is often photographed and not immediately transmitted.

The flash 250 and the mirror 255 may be further disposed adjacent to the camera 121 of the second body 205. The flash 250 illuminates the subject when the subject is photographed by the camera 121 of the second body 205. The mirror 255 allows the user to see the user's face or the like when the user wants to photograph himself (self-photographing) using the camera 121 of the second body 205.

The sound output module 152 may be further disposed on the second rear case 235.

The sound output module 152 of the second body 205 may implement a stereo function together with the sound output module 152 of the first body 200, and may be used for a call in a speakerphone mode.

In addition, an antenna 260 for receiving a broadcast signal may be disposed on one side of the second rear case 235. The antenna 260 may be installed to be pulled out of the second body 205.

A portion of the slide module 265 that slidably couples the first body 200 and the second body 205 is disposed at the side of the first rear case 225 of the first body 200.

The other part of the slide module 265 may be disposed on the second front case 230 side of the second body 205 and may not be exposed to the outside as shown in the drawing.

In the above description, the second camera 121 is described as being disposed in the second body 205, but is not necessarily limited thereto.

For example, at least one or more of the components 260, 121 to 250, and 152 described as disposed on the second rear case 235, such as the camera 121 of the second body, may be the first body 200. May be mounted on the first rear case 225. In such a case, there is an advantage that the configuration (s) disposed in the first rear case 225 in the closed state are protected by the second body 205. Furthermore, even if the camera 121 of the second body is not provided separately, the camera 121 of the first body may be rotatably formed so that the camera 121 of the second body may be photographed up to the photographing direction of the camera 121 of the second body. .

The terminal 100 illustrated in FIGS. 1 to 3 may operate in a communication system capable of transmitting data through a frame or packet, including a wired / wireless communication system and a satellite-based communication system. It can be configured to.

Next, a communication system capable of operating a terminal according to the present invention will be described with reference to FIG.

The communication system may use different air interfaces and / or physical layers. For example, a radio interface usable by a communication system may include frequency division multiple access (FDMA), time division multiple access (TDMA), and code division multiple access (Code Division). Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM), etc. May be included. Hereinafter, for convenience of description, the description will be limited to CDMA. However, it is a matter of course that the present invention is applicable to all communication systems including the CDMA wireless communication system.

As shown in FIG. 4, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BS) 270, and base station controllers (BSCs) 275. ), And a mobile switching center (MSC) 280. The MSC 280 is configured to be connected to a public switched telephone network (PSTN) 290 and is also configured to be connected to BSCs 275. The BSCs 275 may be coupled to the BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may include at least one sector, and each sector may include an omnidirectional antenna or an antenna pointing radially out of BS 270. In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments, each of which has a specific spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of sectors and frequency assignments may be called a CDMA channel. BS 270 may be referred to as a base station transceiver subsystem ('BTSs'). In this case, the word "base station" may be called the sum of one BSC 275 and at least one BS 270. The base station may also indicate “cell site”. Alternatively, each of the plurality of sectors for a particular BS 270 may be called a plurality of cell sites.

As shown in FIG. 4, a broadcasting transmitter (BT) 295 transmits a broadcast signal to terminals 100 operating in the system. The broadcast module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 4 illustrates several satellite positioning systems (GPS) satellites 300. The satellites 300 help to locate the at least one terminal of the plurality of terminals 100. Although two satellites are shown in FIG. 4, useful location information may be obtained by two or less or more satellites. The GPS module 115 shown in FIG. 1 cooperates with the satellites 300 to obtain desired location information. Here, the location can be tracked using all the techniques that can track the location, not just the GPS tracking technology. In addition, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

During typical operation of a wireless communication system, BS 270 receives a reverse link signal from various terminals 100. At this time, the terminals 100 are connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by a particular base station 270 is processed within by the particular base station 270. The data generated as a result of the processing is transmitted to the connected BSC 275. BSC 275 provides call resource allocation and mobility management functionality, including the organization of soft handoffs between base stations 270. In addition, the BSC 275 transmits the received data to the MSC 280, and the MSC 280 provides an additional transmission service for connection with the PSTN 290. Similarly, PSTN 290 connects with MSC 280, MSC 280 connects with BSCs 275, and BSCs 275 send BSs 270 to transmit a forward link signal to terminals 100. ).

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

The present invention implements a mobile terminal that allows a user to continuously watch a broadcast that has been viewed by the mobile terminal on a TV. The two embodiments, that is, the first embodiment when the channel setting of the mobile terminal and the TV are the same, and the channel of the TV The second embodiment may be distinguished when the setting is different from that of the mobile terminal.

Hereinafter, for convenience of explanation, the first and second embodiments set a situation that a user who is watching a broadcast through a mobile terminal outdoors watches a TV through a TV even when the user enters the room. In addition, it is assumed that the broadcasting environment of the first and second embodiments is a DVB-T (Digital Video Broadcast-Terrestrial) system.

5 is a flowchart of a broadcast viewing method according to a first embodiment of the present invention, and FIG. 6 is an exemplary view of a terminal screen according to the embodiment of FIG.

Referring to Figures 5 and 6, the first embodiment of the present invention will be described.

When an external (eg, user) input for executing the broadcast mode is detected through the input device 130 or 151, the controller 180 switches the state of the terminal to the broadcast mode. When the user selects a specific channel, the user receives and displays a broadcast signal of the selected channel. (S10)

Subsequently, when the user watches the broadcast and moves from the outdoor to the indoor (eg, home, office, etc.), and enters a predetermined key to execute the 'to watch TV' function, the controller 180 detects the key input. A message as shown on screen D30 of FIG. 6 is displayed to determine whether to watch or record on TV. (S20)

As shown in FIG. 6, the mobile terminal according to the present invention includes a separate menu item D20-1 to perform a function of 'following TV'. In addition, it is preferable to provide a separate hot-key to enable one-touch operation of the 'watch to TV' function in the standby screen state.

When the execution of the 'Watch on TV' menu or the input of the shortcut key is detected, the controller 180 first detects information on a broadcast channel (eg, channel 5) currently being received with reference to a service ID. do. (S30)

FIG. 7 is a diagram of service information (SI) of a DVB (Digital Video Broadcast) system. FIG. 7A shows a general configuration of service information (SI), and FIG. 7B is a table showing SDT of service information (SI). .

The service information (SI) is composed of a plurality of table types, of which a service description table (SDT) includes data describing a broadcast service such as a broadcast service title and a broadcast service provider as shown in FIG. 7B. Include. The service description table (SDT) also includes a field for recording the number (no.) Of the broadcast channel currently being received, and this field is called a service ID.

In step S30, the controller 180, which finds the broadcast channel no. (For example, channel 5) currently being received, generates a control signal for instructing channel switching to channel 5 (S40) and the IRRC module 114A. To pass. The control signal includes an indication signal for applying power to the TV as well as a signal for instructing channel switching to channel 5.

8 is a simplified configuration diagram of a mobile terminal according to the present invention.

When the control signal is received from the controller 180, the IRRC module 114A generates infrared data corresponding to the received signal, and transfers the generated data to the IRRC converter 114B.

When the infrared data is received from the IRRC module 114A, the IRRC converter 114B receives a frequency preset by the user from the frequency generator 114C. The infrared data is wirelessly converted to the frequency of the frequency generator 114C and transmitted to the TV through an antenna. (S50-S60)

Although the present invention has been described with an infrared data association (IrDA) scheme in FIG. 8 as an example of a short range communication scheme, the applicable short range communication is not limited to the infrared communication scheme, but Bluetooth, RFID (Radio Frequency IDentification) ) And ZigBee can be used in various ways.

In addition, the present invention may replace the short-range communication with home networking. The channel information or TV control command is transmitted to the TV control unit (not shown) through the home network. In the case of using the home network, the user may pre-determine desired broadcast channel information in advance and may also make a reservation for broadcast viewing or reservation recording.

Once the infrared communication signal of the terminal is transmitted to the near field communication module of the TV, the two signals, the power applying signal and the channel switching signal included in the infrared communication signal act on the TV sequentially. That is, the TV control unit (not shown) first applies power to the TV monitor according to the power application signal, and thereafter, displays the channel 5 currently being broadcast on the TV monitor according to the channel switching signal. (S70 ~ 80)

On the other hand, when the TV monitor is turned on when the infrared communication signal of the terminal is transmitted, the power-on signal is ignored and only the channel switching signal acts on the TV so that channel 5 is displayed on the TV monitor.

9 is a flowchart illustrating a broadcast viewing method when the TV does not separately distinguish between a power-on signal and a power-off signal.

If the TV is operating without distinguishing the power-on signal from the power-off signal, that is, on, the power-on signal is regarded as a power-off command and the TV is turned off. When the TV monitor is operated in a manner regarded as a command for applying power, the TV monitor in the on state is turned off when the infrared communication signal of the terminal is received. (S160-S170)

Therefore, when the TV monitor which is in the on state is turned off by the infrared communication signal, the user once again executes the 'Watch on TV' menu or inputs the corresponding shortcut key (S180) to turn off ( The TV monitor in the off) state can be turned on again, and the TV station can be watched on the TV. (S190 ~ S210)

FIG. 10 is a flowchart illustrating a broadcast watching method for transmitting a power-on signal and a channel switching signal to a TV, respectively, according to another embodiment of FIG. 5.

As illustrated in FIG. 10, the controller 180 may separate and transmit an indication signal indicating power supply and a signal indicating channel switching. (S260, S280)

The controller 180 first transmits a power-on signal through the short-range communication module 114 to turn on the TV monitor (S270), and then transmits a channel switching signal to convert the broadcast channel of the TV to a desired channel. . (S290)

When the channel setting of the mobile terminal is different from the channel setting of the TV, it may be considered to transmit the frequency information about the channel setting to the TV and to receive the frequency information from the TV. First, a method of receiving frequency information from a TV will be described.

11 is a flowchart illustrating a broadcast watching method according to a second embodiment of the present invention.

Referring to Fig. 11, a second embodiment of the present invention will be described.

When an external (eg, user) input for executing the broadcast mode is detected through the input device 130 or 151, the controller 180 switches the state of the terminal to the broadcast mode. When the user selects a specific channel, the user receives and displays a broadcast signal of the selected channel. (S310)

Subsequently, as in the first embodiment, when a key input for the function of 'watching on TV' is detected (S320), the controller 180 generates a predetermined request signal for requesting frequency information from the TV side. Then, the transfer to the short-range communication module 114.

Thereafter, the short range communication module 114 generates an infrared signal corresponding to the request signal and transmits the infrared signal to the TV through the antenna. In operation S330, when the transmitted request signal is transmitted to the TV, the TV control unit (not shown) detects frequency information about channel setting of the TV and transmits it to the terminal. (S340 ~ S350)

When it is confirmed that the frequency information of the TV is received by the terminal, the controller 180

By referring to the channel information (service ID, program name, Provider, etc.) included in the service ID (Service ID), it detects the information about the broadcast channel (for example, channel 5) currently being received. In operation S360, the controller detects which channel of the TV corresponds to the current channel (eg, channel 5) of the detected terminal by referring to the received frequency information.

When the channel setting of the terminal and the TV is different, the terminal and the TV allocate different channels to one broadcast. For example, when the BBC news currently being watched is set to channel 5 in the terminal, the TV is set to a channel other than channel 5 (eg, channel 7). Accordingly, in order to watch BBC news on a TV, it is necessary to refer to the frequency information of the TV to determine which channel the TV allocates BBC news to.

When the channel (eg, channel 7) to which the BBC news is allocated is determined by referring to the frequency information of the TV, the controller 180 generates a control signal instructing to switch the channel to channel 7 (S370), and the short-range communication module. Forward to 114. Then, the short range communication module 114 generates an infrared signal corresponding to the control signal and transmits the infrared signal to the TV side through the antenna. The control signal includes a signal instructing to apply power to the TV.

Then, when the infrared communication signal of the terminal is transmitted to the short-range communication module of the TV, the TV control unit (not shown) sequentially applies power to the TV monitor according to the power applying signal and the channel switching signal included in the infrared communication signal ( S395) A broadcast of the same channel as the terminal, that is, the BBC news of channel 7 is displayed. (S400)

The following describes how to send channel frequency information to a TV.

12 is a flowchart illustrating a broadcast viewing method according to another embodiment of FIG. 11, and illustrates a method of transmitting frequency information of a terminal to a TV.

As illustrated in FIG. 12, when a key input for a 'watch to TV' function is detected (S420), the controller 180 controls the channel information (service ID, program name, and provider) included in the service ID. Etc.) to detect information of a broadcast channel (for example, channel 5) currently being received, and to detect frequency information related to channel setting of the terminal. (S430)

In addition, a control signal including a signal for instructing channel switching to channel 5 and the detected frequency information is generated and transmitted to the short range communication module 114. In operation S440, the short range communication module 114 generates an infrared signal corresponding to the control signal and transmits the infrared signal to the TV through the antenna. The control signal includes a power applying signal for applying power to the TV.

Thereafter, when the transmitted infrared signal is transmitted to the short-range communication module of the TV side, the TV-side control unit (not shown) first applies power to the TV monitor according to the power-applying signal. In operation S470, the channel of the TV corresponding to the current channel (for example, channel 5) of the terminal is detected by referring to the frequency information included in the control signal. (S480)

When the channel (eg, channel 7) of the TV corresponding to channel 5 of the terminal is detected, the controller 180 switches the channel setting of the TV to channel 7 according to the channel switching instruction of the control signal and displays the corresponding broadcast. . (S490)

The control operation of the mobile terminal and the TV according to each embodiment of the present invention can be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored.

Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and are also implemented in the form of a carrier wave (for example, transmission over the Internet). It includes being. The computer may include the controller 180 of the mobile terminal.

As described above, the present invention implements a mobile terminal that enables the user to continuously watch a broadcast that has been watched by the terminal on a TV. Presented.

The present invention enables a user to watch a broadcast more conveniently by allowing a user to watch a broadcast that has been watched on the terminal on a TV with only a simple terminal operation.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a block diagram of a mobile terminal according to one embodiment of the present invention;

2 is a front perspective view of a mobile terminal according to an embodiment of the present invention;

3 is a rear perspective view of a mobile terminal according to one embodiment of the present invention;

4 is a block diagram of a wireless communication system in which a mobile terminal according to an embodiment of the present invention may operate.

5 is a flowchart of a broadcast viewing method according to a first embodiment of the present invention.

6 is an exemplary view of a terminal screen according to the embodiment of FIG.

Fig. 7A is a configuration diagram of general service information (SI).

Fig. 7B is a table showing the SDT of service information (SI).

8 is a simplified configuration diagram of a mobile terminal according to the present invention.

9 is a flow chart showing another embodiment of FIG.

10 is a flow chart showing another embodiment of FIG.

11 is a flowchart of a broadcast viewing method according to a second embodiment of the present invention.

12 is a flow chart showing another embodiment of FIG.

*** Explanation of symbols for main parts of drawing ***

100: mobile terminal

110: wireless communication unit 120: AV input unit

130: user input unit 140: sensing unit

150: output unit 160: memory

170: interface unit 180: control unit

190: power supply unit

Claims (14)

A mobile terminal for transmitting a number of a broadcast channel currently received when a predetermined key input occurs; And receiving a channel number from the mobile terminal, wherein the broadcast receiving device switches a channel to the corresponding number and outputs a broadcast. The method of claim 1, wherein the mobile terminal Broadcast receiving system, characterized in that for transmitting the channel number in one of the infrared communication (IrDA), Bluetooth (Bluetooth), RFID (Radio Frequency IDentification), ZigBee. The method of claim 1, wherein the mobile terminal And detecting the channel number with reference to the service ID of the broadcasting system. The method of claim 1, wherein the mobile terminal Broadcast receiving system, characterized in that receiving a broadcast according to the DVB (Digital Video Broadcast) system. An input unit for receiving a key input from the outside; A communication module for transmitting and receiving a radio signal according to a predetermined short range communication method; And a control unit which detects channel information on a broadcast and transmits it to the external device through the communication module when a predetermined key is input through the input unit. The method of claim 5, wherein the short-range communication method A mobile terminal, characterized in that one of infrared communication (IrDA), Bluetooth (Bluetooth), RFID (Radio Frequency IDentification), ZigBee. The method of claim 5, wherein the control unit And detecting the channel information by referring to a service ID of a broadcasting system. The method of claim 5, wherein the mobile terminal A mobile terminal characterized by receiving a broadcast signal according to a DVB (Digital Video Broadcast) system. Detecting a channel of a broadcast currently being received if a predetermined key input is detected; Converting the detected channel information into a short range wireless communication signal; And transmitting the converted radio signal to an external device. The method of claim 9, wherein the external device And receiving the radio signal, performing channel switching according to channel information of the radio signal, and outputting a corresponding broadcast. If a predetermined key input is detected, receiving frequency information regarding channel setting from an external device; Detecting a channel of an external device corresponding to a broadcast channel currently received by referring to the frequency information; Converting the detected information into a short range wireless communication signal; And transmitting the converted radio signal to an external device. The method of claim 11, wherein the external device And receiving the radio signal, performing channel switching according to channel information of the radio signal, and outputting a corresponding broadcast. Detecting frequency information of a terminal related to a broadcast channel and channel setting of a terminal currently being received when a predetermined key input is detected; Converting the detected information into a short range wireless communication signal; And transmitting the converted wireless signal to an external device. The method of claim 13, Receiving the wireless signal by the external device; Detecting a channel of an external device corresponding to a broadcast channel of the terminal by referring to frequency information of the radio signal; And outputting a corresponding broadcast by an external device performing channel switching to the corresponding channel.

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