KR20080042415A - Apparatus and method of tpeg receive in portable device - Google Patents

Abstract

A TPEG(Transport Protocol Experts Group) receiver in a portable terminal and a method thereof are provided to allow the user to always obtain necessary traffic information by continuously receiving a TPEG service. A TPEG receiver in a portable terminal includes an antenna(100), a tuner unit(102), a decoding unit(104), a TPEG decoding unit(112), a data mixing processing unit(114), an external interface unit(106), a map data storing unit(116), an external interface(120), a GPS processor(118), and a control unit(122). The antenna receives a DMB signal. The tuner unit selects and filters a specific channel from the DMB signal. The decoding unit performing a channel decoding for the DMB signal, and performs audio decoding and data decoding. The TPEG decoding unit decodes only traffic information data among the decoded data from the decoding unit. The data mixing processing unit mixes and outputs the traffic information data form the TPEG decoding unit. The external interface unit transmits TPEG data from a second communication means. The control unit receives TPEG data from a corresponding terminal and controls to continuously receive a service when a service use stops. The GPS processor provides a current position value to indicate a current position on map data by corresponding to a control signal.

Description

Apparatus and Method of TFTP receive in portable device

1 is a block diagram showing the configuration of a portable terminal capable of receiving a TPEG according to an embodiment of the present invention.

2 is a flowchart illustrating a method of receiving a TPEG in a shaded area according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ... antenna 102 ... tuner section

104 ... Decoding section 106 ... LCD interface section

108 ... Speaker 110 ... DMB A / V Processing Unit

112 ... TPEG decoding section 114 ... Data mixing processing section

116 Map data storage unit 118 GPS processing unit

120 ... External interface 120a. Wired communication module

120 b.Wireless communication module 122 ... control unit

The present invention relates to an apparatus and a method for receiving a TPEG in a portable terminal using a second communication means.

More particularly, the present invention relates to a TPEG receiving apparatus and method in a mobile terminal capable of continuously receiving a TPEG service even in a shadow area.

The Transport Protocol Expert Group (“TPEG”) is a term used to refer to international standards that are being developed in series to efficiently transport traffic and traveler information on digital transmission media.

TPEG is a broadcaster-centered broadcast telematics service.

TPEG includes several specifications. Road Traffic Message (RTM), Congestion & Travel Time information (CTT), Public Transport Information (PTI), Parking Informatio (PKI), Weather Information (WEA) Weather information).

In Korea, broadcasters such as KBS, YTN, and MBC are preparing TPEG services through terrestrial DMB.

It is possible to know the congestion section and accident section in advance because the next-generation service enables drivers to select the unobstructed route based on the current traffic information. The back flies to the navigation terminal via the broadcasting network. In addition, the driver can search for the information he / she wants in real time.

A portable terminal for receiving such a traffic information service (TPEG) receives and decodes the TPEG data coming with the DMB carrier, mixes the data, and spreads them on the display.

In order to continuously use the TPEG service, the corresponding signal must be continuously received from the DMB set. However, since the reception rate is lowered in the shaded area, not only the DMB broadcast signal but also the TPEG received together can not be received before the shaded area. A problem may occur in which TPEG information is not available.

An object of the present invention is to provide an apparatus and a method for receiving a TPEG in a portable terminal, which enables a user to continuously receive the TPEG and use the corresponding information even in a situation where the user has a low shadow area or a low reception rate.

An apparatus for receiving a TPEG in a portable terminal according to the present invention for achieving the above object, the antenna for receiving a DMB (DMB) signal; A tuner unit for tuning and filtering a specific channel with respect to a predetermined DMB signal input from the antenna; A decoding unit which performs audio decoding and data decoding after performing channel decoding on the DMB signal input from the tuner unit; A TPEG decoding unit for decoding and outputting only traffic information data of the decoded data input from the decoding unit; A data mixing processor for mixing and outputting a traffic information signal output from the TPEG decoding unit; An external interface for transmitting TPEG data from the second communication means; A control unit which checks the connection with the second communication means through the external interface unit and receives the TPEG data from the corresponding terminal and continuously receives the service when the service is stopped due to the weak reception strength during the use of the TPEG service; It is characterized by.

Preferably, the external interface unit receives the TPEG service data from the second communication means using at least one of a wired communication module and a wireless communication module.

Preferably, the wired communication module is characterized in that at least one of UART, USB.

Preferably, the wireless communication module is at least one of Bluetooth (BT) and WLAN (WLAN).

Preferably, the second communication means is a terminal supporting CDMA, GSM, HSDPA, HSUPA, WiBro.

A method for receiving a TPEG in a portable terminal according to the present invention includes the steps of using a TPEG service using a DMB module of the portable terminal; Determining whether the DMB can be received; And if the reception of the DMB is impossible, receiving TPEG data from the second communication means and continuously using the service.

Preferably, if DMB reception is possible again, stopping the data reception from the second communication means and using the TPEG service using its own DMB module; characterized in that it further comprises.

Preferably, if the DMB reception is not possible, receiving the TPEG data from the second communication means is characterized by using a wired / wireless communication module.

An apparatus and method for receiving a TPEG in a mobile terminal according to an exemplary embodiment of the present invention as described above will be described with reference to the accompanying drawings.

1 is a block diagram illustrating a configuration of a portable terminal capable of receiving a TPEG according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an antenna 100 for receiving a DMB signal, a tuner unit 102 for tuning and filtering a specific channel with respect to a predetermined DMB signal input from the antenna 100, and the tuner unit After performing channel decoding on the DMB signal input from 102, the decoding unit 104 for performing audio decoding and data decoding and the LCD interface unit for encoding and outputting the decoded data input from the decoding unit 104. Decodes only the traffic information data among the DMB-only A / V processing unit 110 and the decoding data inputted from the decoding unit 104 by encoding the digitally decoded digital audio data 106 and the output to the speaker 140. The data mixing processor 114 and the second communication means for mixing and outputting the traffic information signal output from the TPEG decoding unit 112 and the TPEG decoding unit 112 An external interface 120 for transmitting TPEG data, a map data storage 116 for storing map data, and a GPS processor 116 for providing a current position value to display a current position on the map data in response to a control signal. ) And when the use of the service is stopped due to the weak reception strength during the use of the TPEG service, the controller checks the connection with the second communication means through the external interface unit 120 and receives the TPEG data from the corresponding terminal to control the service continuously. It is configured to include a; control unit 122.

The external interface unit 120 includes a wired communication module 120a and a wireless communication module 120b.

The wired communication module 120a uses a communication scheme such as a universal asynchronous receiver / receiver (“UART”) and a universal serial bus (“USB”).

The wireless communication module 120b uses a communication scheme such as Bluetooth or Wireless LAN.

The control unit 122 senses that the strength of the signal received through the antenna 100 is weakened, that is, if it is determined that the shadow area is controlled to determine whether the second communication means exists through the external interface unit 120. do.

Here, the second communication means refers to a portable terminal of a type that supports CDMA, GSM, HSDPA, HSUPA, WiBro, which can be received even in a region where the DMB set itself cannot be received.

In detail, it refers to using a mobile phone or a laptop, and in a shaded area where a wired LAN exists, accesses a corresponding TPEG service server using a wired LAN network to receive data and transmit the data to a mobile terminal.

When the control unit 122 detects the second communication means capable of communicating with the wired communication module 120a or the wireless communication module 120b, the controller 122 controls the TPEG data received by the second communication means to be transmitted using a communication line. .

The control unit 122 stops receiving the TPEG data in the second communication means through the external interface 120 when the TPEG can be received through the antenna 100, and receives the TPEG data from the portable terminal itself. Control to maintain the service.

Referring to the operation of the traffic information receiving apparatus configured as described above is as follows.

After the user tunes a predetermined channel through the tuner unit 102 using the DMB receiver and receives DMB data through the tuned channel, the decoding unit 104 decodes the received DMB data so that the audio signal is the speaker 100. The audio information related to the audio signal is output to the LCD interface 106 to be displayed on the screen.

The DMB A / V processing unit 110 outputs the video signal to the LCD interface unit 106 through the data mixing processing unit 114 to be output on the screen.

On the other hand, when a user is curious about the current traffic information and inputs a traffic information reception request signal using a button or menu item provided in the DMB receiver, the controller 122 controls the TPEG decoding unit 112 to decode only traffic information. To the data mixing processor 114, and the data mixing processor 114 outputs the traffic information through the LCD interface 130 to output the traffic information on the screen.

At this time, when the reception strength of the antenna 100 is lowered by entering the sound region, the controller 122 searches for the second communication means connected to the external interface unit 120.

There may be various methods of connecting with the second communication means, but first, the wired communication through UART or USB and the wireless communication through Bluetooth or WLAN between the mobile terminal and the terminal supporting CDMA, GSM, HSDPA, and HSUPA. Using TPEG data received by the terminal can be received.

In addition, the TPEG data received at the terminal may be received between the portable terminal and the WiBro notebook by using wired communication through UART or USB and wireless communication through Bluetooth or WLAN.

In another embodiment, in the case of a mobile terminal having a built-in DMB module and an HP module, the TPEG service is received through the DMB module and enters a shaded area, and when the reception strength drops, the TPEG data is continuously received using the HP module. Can be implemented to use.

As described above, it is possible to maintain communication with the mobile terminal and the second communication means, receive data related to the corresponding service by accessing the TPEG server from the second communication means, and transmit the received TPEG data to the mobile terminal to maintain continuous service. Make sure

2 is a flowchart illustrating a method of receiving a TPEG in a shaded area according to an exemplary embodiment of the present invention.

Referring to FIG. 2, while a user receives a DMB using a mobile terminal and decodes only the TPEG signal of the transmitted data, while using the corresponding service (S200), the user enters a shaded area and if the reception strength drops, the reception of the DMB is impossible. It is determined (S202).

As a result of the determination in step 202, if it is determined that DMB reception is impossible, it is determined whether a second communication means exists through an external interface (S204).

As a result of the determination in step 202, if it is determined that the DMB reception area is possible, the mobile terminal continuously receives the TPEG to use the service (S206).

As a result of the determination in step 204, if the second communication means exists, it is determined whether the TPEG reception is possible in the second communication means (S208).

If it is determined in step 204, 208 that the second communication means does not exist or it is impossible to receive the TPEG data by the second communication means, the portable terminal checks whether the DMB can be received.

As a result of the determination in step 208, if the TPEG data can be received in the second communication means, the TPEG data is received using the communication line between the portable terminal and the second communication means (S210).

While receiving the continuous TPEG data using the second communication means and using the service, the mobile terminal frequently checks whether DMB reception is possible (S212).

As a result of the determination in step 212, if it is determined that the portable terminal can receive the DMB, the mobile terminal stops receiving the TPEG through the second communication means and starts receiving the TPEG through the DMB set of the portable terminal so as to continuously receive the service (S214). ).

So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented. Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent range will be construed as being included in the present invention.

According to the present invention, by allowing the user to continuously receive the TPEG service using the second communication means and data communication in the shadow area, the user can grasp the necessary traffic information at any time.

Claims (8)

An antenna for receiving a DMB signal; A tuner unit for tuning and filtering a specific channel with respect to a predetermined DMB signal input from the antenna; A decoding unit which performs audio decoding and data decoding after performing channel decoding on the DMB signal input from the tuner unit; A TPEG decoding unit for decoding and outputting only traffic information data of the decoded data input from the decoding unit; A data mixing processor for mixing and outputting a traffic information signal output from the TPEG decoding unit; An external interface for transmitting TPEG data from the second communication means; A control unit which checks the connection with the second communication means through the external interface unit and receives the TPEG data from the corresponding terminal and continuously receives the service when the service is stopped due to the weak reception strength during the use of the TPEG service; TPEG receiver in a portable terminal, characterized in that. The method of claim 1, And the external interface unit receives TPEG service data from the second communication means using at least one of a wired communication module and a wireless communication module. The method of claim 2, The wired communication module is at least one of the UART, USB, TPEG receiving device in a portable terminal. The method of claim 2, The wireless communication module is a TPEG receiving device in a portable terminal, characterized in that at least one of Bluetooth (BT) or WLAN (WLAN). The method of claim 1, And the second communication means is a terminal supporting CDMA, GSM, HSDPA, HSUPA, WiBro. Using a TPEG service using the DMB module of the mobile terminal; Determining whether the DMB can be received; And receiving the TPEG data from the second communication means and continuously using the service if the DMB reception is impossible as the determination result. The method of claim 1, If the DMB reception is possible again, stopping the data reception from the second communication means and using the TPEG service using its own DMB module; TPEG receiving method in a mobile terminal, characterized in that it further comprises. The method of claim 1, And receiving the TPEG data from the second communication means if the DMB reception is impossible, using a wired / wireless communication module.

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