KR20120014649A - Control method of dmb having dual dmb chips for intro function - Google Patents

Abstract

PURPOSE: A method for controlling a DMB apparatus is provided to offer a DMB intro function while simultaneously offering a DMB and a TPEG(Transport Protocol Experts Group) function. CONSTITUTION: If time which is displayed on a display unit reaches to a preset time(S320), a buffering process and an output process to the display unit is repeatedly performed by turns about a first DMB chip and a second DMB chip(S305,S313,S330). It is determined whether a currently broadcast image information is the last channel or not is determined(S150). If the broadcast information is the final channel, the DMB in troll function is stopped.

Description

Control method of DMB device having dual DMB chip with DMB intro function {control method of DMB having dual dmb chips for intro function}

The present invention relates to a method for controlling a DMB device having a dual DMB chip having a DMMB intro function, and more specifically, a DMMB intro function is added to a DMMB service while simultaneously performing a DMMB service and a TIPE function. The present invention relates to a function for providing broadcast image information more easily and selecting a required channel.

In general, DMB broadcasts a broadcast service that allows subscribers to watch or listen to various multimedia broadcasts such as video, audio, and data through a personal portable or in-vehicle receiver equipped with a reception antenna while outdoors and on the go. to be. That is, a DMB device refers to a device having a new concept of digital multimedia broadcasting (DMB), which is a combination of broadcasting and communication. When watching a DMB through a portable terminal, a user may view a screen of the portable terminal. The user can watch the selected program by viewing various multimedia broadcasting channel information displayed through the user and selecting a desired broadcasting channel and displaying the program of the selected channel on the display unit. Here, the channel means not a transmission channel through which digital broadcast data is transmitted but actually means a broadcast channel through which digital broadcast content is output from a digital broadcast receiving terminal.

In addition, the TIPE function, ie, the Transport Protocol Experts Group (TPEG), is a service that displays traffic information and traveler information provided by a broadcaster in a DMB data broadcasting signal and displays the navigation terminal equipped with a DM receiver chip. . This service allows the device to check the road traffic information, estimated driving time, accident news, and threats in advance. In addition, you can see information on various facilities such as restaurants, destinations, accommodations, gas stations, and even daily information such as news, weather, and nearby parking lots.

FIG. 1 is a block diagram illustrating a DMB service providing a DMB service using a conventional dual DMB chip and a TIPEC function, that is, a transport protocol expert service group (TPEG).

As shown in FIG. 1, the DMB device 31 uses the first DMB chip 41 and the second DMB chip 51 to simultaneously output the DMB service and the TIPE function to the display unit 37.

When the user of the DM device 31 selects a channel through the channel list of the display unit 37, the first DM chip 41 processes the overall user interface in the DMB controller 43 and then selects a channel. The broadcast information is buffered and an image is output through the display unit 37.

In addition, when the user selects a channel that provides the TIPEC function through the input unit 35 of the display unit 37, the second DMB chip 51 may use the TMB unit 31. After processing the user interface, the image information is output through the display unit 37 by buffering the information of the corresponding channel of the Tipek function.

Thus, through this process, the first DM chip 41 and the second DM chip 51 respectively display the service of the DM service and the TIPE function to the user through the DM device 31 by the operation of different functions. Output to the unit 37 simultaneously.

Accordingly, the conventional DMMB service described above has the following problems.

First, the conventional technology does not provide information about a channel currently being broadcasted by a domestic DMB service such as RDS (Radio Data System) in Europe or the United States, which informs simple information by adding an additional data signal to an FM broadcast. have. Therefore, in the case of domestic DMB service, the information about the channel is text (text) information through the channel list, and only the information about the broadcaster and the broadcasting title of the channel is provided. There was no inconvenience for the user to find the desired channel.

Second, among other similar devices (Mp3 Player), you can see a product with an intro function to compensate for the above problems. Even if you add this function to the DM service, you can select a channel and broadcast the channel in the DM service. It takes about 3-8 seconds to watch. This may vary slightly from product to product, but due to the nature of DM services, the channel is selected and there is a problem that the waiting time is long due to buffering.

Third, it provides convenience to the user by simultaneously outputting the DM service and the TIPEC function using two DMB chips. However, when only one service is provided between the DM service and the TIPE function, only one DM chip is used. There was a problem in the product functionality as the utilization of the other DM chip is lowered.

For this reason, even if the intro function is added to the DM service, there is a problem in that the DM intro function is not improved.

In order to solve the above problems, the present invention is easy to find out what kind of broadcasts the user is playing in the DMMB by providing a DMMB intro function not provided in the conventional DMMB while simultaneously serving the DMMB and TIPE functions using a dual DMMB chip It is a problem to provide a control method of a DMB device having a dual DMB chip having a DMMB intro function which is easy to select and provides a user's convenience.

In order to solve the above problems, the present invention is a control method of a DMB device equipped with a dual DMB chip to be used for different purposes, when the DMB intro function is selected, broadcast image information of the initial channel through the first DMB chip; A first step of receiving, buffering and outputting to the display unit and receiving and buffering broadcast image information of a next channel through a second DM chip; When the time output to the display reaches a predetermined time, receiving and buffering broadcast image information of the next channel sequentially between the first DM chip and the second DM chip and outputting to the display unit are performed. A second step of alternately performing alternately in predetermined time units; And a third step of determining whether the currently provided broadcast image information is the last channel, and stopping the DMB intro function in the last channel. to provide.

Here, the buffering process is preferably performed by storing the broadcast image information received through the receiving unit in the buffer unit.

In addition, the receiving and buffering process and the output process to the display unit are alternately performed, when the data of the first DM chip is being output to the display unit through the dual DM chip operation control unit. Buffering the data in the buffer unit, and when the first DMB chip outputs data, buffers data of the next channel through the buffer unit, and simultaneously the data of the second DMB chip is transferred to the display unit. It is preferable that the output steps are repeatedly performed alternately with each other.

Furthermore, in the first and third steps, when the DMB intro function is selected, it is determined whether there is a DMB chip in the TIPEC function, and when the DMB chip in the TIPEC function is present, it is preferable to output a request to stop the TIPB function. Do.

And a receiving unit for receiving broadcast image information corresponding to the broadcast channel; First and second DMB chips which are provided to be used for different purposes, and which receive, buffer and output broadcast image information when the DMB intro function is selected; A buffer unit configured to store broadcast image information during the buffering process between the first DM chip and the second DM chip; And a process of receiving and buffering broadcast image information of a next channel sequentially between the first DM chip and the second DM chip to output broadcast image information according to the DMB intro function, and outputting to the display unit. The present invention provides a control method of a DMB device having a dual DMB chip having a DMMB intro function including a dual DM chip operation control unit performing switching control to alternately repeat the operation in units of time.

Through the above solution, the control method of the DMB device equipped with a dual DMB chip of the DMMB intro function of the present invention provides the following effects.

First, the control method of a DMB device equipped with a dual DMB chip having a DMMB intro function added uses a DMMB intro function which is not present in a conventional DMMB device. Therefore, even if the user does not select the broadcast channel information of each channel in the channel list, the channel information, which is output only as text (characters) in the conventional channel list, is output in order for a predetermined time as the broadcast image information. do. Thus, since the user can easily and conveniently know and select the information of the desired channel, the ease of use can be significantly improved.

Second, the control method of the DMB device equipped with the dual DMB chip having the DMMB intro function can easily and conveniently know and select the broadcast image information of the desired channel from the channel list, as well as the TIPE function, that is, the traffic and travel information. When the function of the service (TPEG: Transport Protocol Experts Group) is suspended, the conventional DM service and the two DM chips simultaneously performing the TIPEC function are alternately operated. Thus, since the channel is selected and the broadcast video information of the corresponding channel is output, the buffering time is removed to provide the information quickly, thereby significantly reducing the waiting time, thereby significantly improving the user's satisfaction.

Third, when a start command of the DMB intro service is issued and the request for stopping the TIPE function is received, the second DMB chip processing the TIPE function and the first DMB chip processing the DMB service are alternated through a dual DM chip operation control unit and a buffer unit. It receives, buffers and outputs channel information. Thus, the utilization of the second DMB chip used only for the conventional TIPEC function can be increased, and thus the functionality of the product can be significantly improved.

Fourth, since the reception, buffering, and output of the broadcast video information of the channel are not performed by one chip but by the dual type first DMB chip and the second DMB chip, the broadcast video information of the selected channel is received, buffered, and the like. According to the broadcast video information output is made quickly, the quality of the product can be significantly improved.

1 is a block diagram showing a DM device providing a DM service and a TIPEC function using a conventional dual DM chip, that is, a Transport Protocol Experts Group (TPEG).
FIG. 2 is a block diagram illustrating a DMB device incorporating a dual DMB chip according to an exemplary embodiment of the present invention. FIG.
3 is a flowchart illustrating a method of providing DMMB intro function according to a preferred embodiment of the present invention.
4 is a flowchart illustrating dual DMB chip operation according to a preferred embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a control method of a DMB device having a dual DMB chip with a DMMB intro function according to a preferred embodiment of the present invention.

Here, the DMB apparatus of the present invention may be implemented as a mobile phone, a PDA, a navigation apparatus, and the like. Hereinafter, for convenience of description, the DMMB apparatus built in the vehicle navigation system will be described.

At this time, the vehicle navigation system is equipped with a GPS (Global Positioning System) is used to determine the location of the vehicle and determine the movement path, such navigation system is generally latitude, longitude, altitude, etc. from a plurality of satellites After calculating the current position of the vehicle by receiving a radio wave representing the provides the map information including the current position to the driver.

For example, after receiving GPS signals from a plurality of GPS satellites floating on the earth, calculating the position of the vehicle based on the received GPS signals, the position of the vehicle is mapped onto the map data and displayed on the display to display the current vehicle. The position of can be simply confirmed.

Moreover, recently, the navigation system is provided to provide various broadcasting information as well as the location and driving route of the vehicle. For this purpose, the mobile multimedia broadcasting apparatus is built in the navigation system.

Here, the broadcasting information provided by the DMB device is typically DMB (Digital Multimedia Brocasting), which is provided with TV or radio broadcasting, and TPEG (Transport Protocol Expert Group), which provides traffic and travel information in real time. There is a function.

Accordingly, in the DMMB apparatus in which the DMMB and the TIPE function are serviced, broadcast channel data for the DMMB service and the TIPE function are listed and output on the display unit, and one of the output broadcast channel data is selected. The broadcast information corresponding to the selected broadcast channel is output to the display unit so that the user can listen.

However, the DM service of the conventional DM device provides only the broadcaster and the broadcasting title information of the channel in the channel list as text (characters), so it is not possible to know what broadcasting is performed on the channel until the user selects it.

In addition, in order to complement the above function, even if the DMB intro function of the devices similar to the DMB device (MP3 Player) is added to the DMB service, in order to select a channel and watch the broadcasting information of the channel in the current DMMB service The buffering time takes up a lot of time, resulting in inconvenience.

Therefore, the present invention provides a control method of a DMB device equipped with a dual DMB chip having an improved DMMB intro function.

Here, the DMB intro function may be understood to provide broadcast information of a channel output in a channel list for a predetermined time in an image in the form of 'preview' of broadcast information provided only in text (characters).

FIG. 2 is a block diagram illustrating a DMB device in which a dual DMB chip is installed according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the DMB device 31 applied to the present invention includes a receiver 33, an input unit 35, a display unit 37, a first DM chip 41, a DMB controller 43, and a second unit. The DMB chip 51, the TIPE controller 53, the dual DM chip operation controller 61, and the buffer unit 63 are formed.

Here, the receiver 33 receives the broadcast image information of the channel selected by the user in the channel list, and receives the information of the Tipek channel when providing the service of the Tipek function. In this case, it is preferable that the channel information is understood as a general broadcast content based on a DMB service and the service of the TIPE function.

In addition, the input unit 35 is disposed on the front of the display unit 37 and provided as an operation button or a touch input method, and includes an input interface such that an output command and a channel search command for various information are input. In detail, the input unit 33 is integrated with the display unit 37 which is an image display panel such as a liquid crystal display (LCD) and the like, and is used as a digitizer for detecting touch inputs such as electrostatic, resistance, and pressing methods. It is preferred to be provided.

In addition, the display unit 37 is provided such that the broadcast information of the DM service and Tippe function received from the receiving unit 33 is displayed as an image or text (character) so that the user can visually check, the DMB service and The voice information according to the broadcast information of the Tippek function is output so that the user's auditory confirmation is possible.

Here, the display unit 37 is provided with the input unit 33, while simultaneously performing the service of the DMB service and Tippek function serves to simultaneously output the image information corresponding to each service, when the Tippek function is stopped The broadcast video information of the DMB intro function is output, and the broadcast video of the channel selected by the user is output.

In addition, when the DMB service and the TPE function are simultaneously provided, the first DM chip 41 may have a general user by the DM operation processor 43 when the user of the DM device 31 selects a channel. After processing the interface, the broadcast information of the corresponding channel is buffered and the image is output through the display unit 37. Here, the buffering refers to a method of utilizing a buffer or an operation of temporarily storing the buffer unit, and a method of temporarily storing information in order to smoothly receive the information and significantly increasing the processing speed upon output. It means a process that can be used as.

On the other hand, when the service of the TIPE function is stopped and the DMB intro function is provided, the first DM chip 41 processes the user interface in the DM controller 43 and then the dual DM chip operation controller 61. The buffer unit 63 alternately drives the second DM chip 51 to output broadcast image information of the channel list to the display unit 37.

In this case, when the DMB service and the TIPE function service are simultaneously provided, the second DM chip 51 selects a channel that provides the TIPE function during operation of the DM device 31 by the user, and then the TIPE controller 53. After processing the user interface at, it is preferable that the image is output through the display unit 37 by buffering the information of the corresponding channel of the TIPEC function.

In addition, when the DMB intro function is provided as described above, the second DMB chip 51 alternately with the first DMB chip 41 through the dual DM chip operation control unit 61 and the buffer unit 63 to perform the DMB intro function. Perform the command of.

In addition, the dual DM chip operation control unit 61 makes a request to stop the service of the TIPE function to the TIPE controller 53 and outputs the DMB intro function to the first DM chip 41 and the second DM chip 51. While controlling alternately, it is preferable to output the broadcast image information buffered through the buffer unit 63 to the display unit 37.

On the other hand, the buffer unit 63 is a receiver 33 for the first DM chip 41 and the second DM chip 51 to alternately perform buffering of channel image information and output to the display unit 37. It is preferable to store the channel information of the channel list received through). Here, the buffer unit 63 is a device capable of temporarily storing information, and may be formed of a RAM or a flash memory.

As described above, the control method of the DMB device including the dual DMB chip having the DMMB intro function added thereto receives the channel information of the broadcasting channel selected by the user in the channel list through the receiver 33 and the TPE function Receives Tippek channel information when providing services.

Here, the buffer unit 63 is a receiver 33 so that the first DM chip 41 and the second DM chip 51 alternately perform buffering of channel image information and output to the display unit 37. Channel information of the channel list received through) is stored, and the dual DMB chip operation controller 61 makes a request for stopping the service of the TIPEC function to the TIPEC controller 53.

In addition, the display unit 37 displays broadcast image information buffered through the buffer unit 63 while alternately controlling the first DM chip 41 and the second DM chip 51 to output a DM MB intro function. By being output to the user, the user can quickly and accurately check the image information of the desired channel.

That is, the first DMB chip 41 and the second DMB chip 51 receive and buffer video information of another channel even while outputting one broadcast video information, thereby providing the broadcast video information of the channel currently being output. The video information of the channel can be output quickly.

3 is a flowchart illustrating a method for providing a DMB intro function according to a preferred embodiment of the present invention.

As shown in FIG. 3, in the method for controlling a DM device equipped with a dual DM chip in which the DM MB intro function is added, a user inputs to the display unit for output of the DM MB intro function (s100), and the channel of the channel list. When there is more than one, the DMMB intro function is executed. Then, if the service of the Tippek function is running, the DMMB intro function is started after being stopped (S130).

Here, the first DMB chip and the second DMB chip alternate with each other and perform a buffering request, buffer connection, and output for a predetermined time. In addition, broadcast image information of all channels of the channel list is output through this process.

As described above, the method for controlling a DM device equipped with a dual DM chip in which the DM MB intro function is added through the above process provides the user with convenient and fast broadcast image information.

Specifically, the information on the channel of the DMMB service received through the receiver is displayed as an image or text (character) to display the user visually, so that the user can use the DMB intro function of the channel list in the channel list. It is determined whether there are two or more channels (s110), and it is determined whether the service of the Tipek function is stopped (s120).

The determination of whether there are two or more channels in the channel list may be performed by selecting a selection button for channel search of the input unit, or may be preset to automatically determine upon input of the use of the DMB intro function.

On the other hand, if there are not more than two channels in the channel list, the DMMB intro function is not used (s111), and if the service of the Tippe function is running (S121).

In this case, the request for stopping the service of the Tippec function may be selected by the user through a selection button for the stop request of the input unit, or may be forcibly terminated at the same time as the request of the DMMB intro function.

The first DMB chip and the second DMB chip are alternated by a dual DM chip operation control unit and a buffer unit, and output broadcast image information to the display unit for the predetermined time, and is the next channel of the channel being output by one chip. The other chip is repeatedly driven in the process of receiving and buffering the broadcast image information about the buffer through the buffer unit. Here, the operation of the first DMB chip and the second DMB chip will be described in detail with reference to FIG. 4 below.

In addition, when the predetermined time elapses, it is determined whether the currently output broadcast video information is the last channel (s150 in FIG. 4), and if it is not the last channel, the first DMB chip and the second DMB chip as described above. The dual DM chip operation control unit and the buffer unit alternately receive, buffer and output broadcast image information while outputting broadcast image information of all channels in the channel list.

However, if there is no broadcast video information due to the poor reception rate of the next channel during buffering of the next channel, it is preferable to switch to buffering for the next channel. Can be left to the user's choice.

In addition, when the preset time has elapsed, it is determined whether the currently output broadcast video information is the last channel (s150 in FIG. 4). In the case of the last channel, the broadcast video information in the channel list is finished. Requests the service of the Tipek function (s160).

Here, the service request of the TIPE function may be performed by a user input with a selection button for the service output of the TIPE function when the DMMB intro function is stopped on the display unit. It may be preset to.

4 is a flowchart illustrating the operation of a dual DM chip according to a preferred embodiment of the present invention.

As shown in FIG. 4, the dual DMB chip of the DMMB device control method including the dual DMB chip having the DMMB intro function according to the present invention may include receiving broadcast image information by a first DMB chip and a second DMB chip. The buffering and output process is repeated.

Specifically, when the DMB intro function is input (s130 in FIG. 3), the first DMB chip receives the broadcast image information of the first (N) channel, and buffers (s300) and the first (N) channel. The broadcast video information is output through the display unit (s303).

 At this time, the broadcast image information of the first (N) channel by the first DMB chip is being output (s303), and at the same time, the second DMB chip may transmit broadcast image information about the second (N + 1) channel. The reception is performed and buffered (s310).

Meanwhile, the broadcast image information of the first (N) channel by the first DM chip is output for a predetermined time and the output ends (s320) and the second (N + 1) by the second DM chip. The broadcast video information of the channel is output (s313).

Here, the first DMB chip receives the broadcast image information of the third (N + 2) channel and is buffered while the broadcast image information is output by the second DMB chip.

As described above, the first DM chip and the second DM chip are sequentially alternated through the dual DM chip operation control unit to output broadcast image information for the predetermined time, and to buffer broadcast image information on the next channel of the channel being output. It is driven repeatedly by the process of receiving and buffering through the unit. Here, the channel means not a transmission channel through which digital broadcast data is transmitted, but rather a broadcast channel in which digital broadcast information is sequentially displayed in the DMB device.

In detail, after the first DMB chip receives and buffers broadcast video information of N + 2 channels (s305) and the broadcast video information of N + 1 channel by the second DMB chip is output for a predetermined time (s313). In addition, outputting broadcast image information of N channels by the first DM chip means that the two chips operate alternately. In addition, N is understood to be a natural number such as 1,2,3,4 ..... N, and as shown in FIG. 4, it is preferable to understand N = N + 2 (s400) when N is increased. . That is, after the first DM chip outputs broadcast video information of the first (N) channel, it is preferable to receive, buffer, and output the third (N + 2) channel.

In addition, if the predetermined time is '10 seconds', the broadcast image information by the first DM chip is output for '10 seconds' and the count for '10 seconds' is started on the second DM chip. When the count is completed, the broadcast image information by the second DMB chip is output for '10 seconds', and in this process, the first DMB chip and the second DMB chip may transmit the broadcast image information through the same method. Repeat the reception, buffering and output.

As described above, in the control method of the DMB apparatus including the dual DMB chip having the DMMB intro function, the broadcasting image information of the broadcasting of the channel list is output to the display unit by the dual DMB chip. You can conveniently and accurately check the broadcast video information. In addition, as the dual DM chips are alternately driven, the problem of taking time in the process of receiving and outputting the conventional broadcast image is improved, and thus the usability and speed can be remarkably improved as the broadcast image information is output without waiting. The functionality of the product may be improved by utilizing the second DMB chip, which was used only for providing the TIPEC function.

As described above, the present invention is not limited to the above-described embodiments, but may be modified and implemented by those skilled in the art without departing from the scope of the claims of the present invention. Such modifications are within the scope of the present invention.

31: DM device 33: receiving unit
35: input unit 37: display unit
41: first DMB chip 43: DMB controller
51: second DMB chip 53: tipek controller
61: dual DM chip operation control unit 63: buffer unit

Claims (5)

In the control method of the DMB device provided with a dual DMB chip to be used for different purposes,
When the DMB intro function is selected, a first step of receiving and buffering broadcast image information of an initial channel through a first DM chip and outputting it to a display unit, and receiving and buffering broadcast image information of a next channel through a second DM chip ;
When the time output to the display reaches a predetermined time, receiving and buffering broadcast image information of the next channel sequentially between the first DM chip and the second DM chip and outputting to the display unit are performed. A second step of alternately performing alternately in predetermined time units; And
And a third step of determining whether the currently provided broadcast video information is the last channel and stopping the DMB intro function in the last channel. The method of claim 1,
The buffering process is a control method of a DMB apparatus having a dual DMB chip with a DMMB intro function, characterized in that the buffer is stored by storing the broadcast image information received through the receiver. The method of claim 1,
Alternately performing the receiving and buffering process and the output process to the display unit,
When the data of the first DM chip is being output to the display through the dual DM chip operation controller, the second DM chip performing a buffering process at the buffer unit;
When the first DMB chip outputs the data, buffering data of the next channel through the buffer unit and simultaneously outputting data of the second DMB chip to the display unit;
A method of controlling a DMB device including a dual DMB chip having a DMMB intro function, which is repeatedly performed alternately with each other. The method of claim 1,
In the first step,
When the DMB intro function is selected, it is determined whether there is a DMB chip in the TIPE function, and when the DMB chip in the TIPE function exists, the dual DMB chip having the DMMB intro function is output. The control method of the provided DMB apparatus. A receiver which receives broadcast image information corresponding to a broadcast channel;
First and second DMB chips which are provided to be used for different purposes, and which receive, buffer and output broadcast image information when the DMB intro function is selected;
A buffer unit for storing broadcast image information during the buffering process of the first DM chip and the second DM chip; And
In order to output broadcast image information according to the DMB intro function, a predetermined time for receiving and buffering the broadcast image information of the next channel between the first DMB chip and the second DMB chip and outputting to the display unit is preset. And a dual DM chip operation control unit configured to perform switching control to alternately repeat the unit repeatedly.

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