KR20080021366A - Apparatus and method for recording and reproducing multiplex broadcasting data using ultra wide band - Google Patents

Abstract

An apparatus and a method for recording and reproducing multiplex broadcasting data by using an UWB(Ultra Wide Band) are provided to enable a telematics terminal to multiplex various types of data in a PPDU(Presentation Protocol Data Unit) format of the UWB, transmit the data to a UWB storage device to record the data, and select and reproduce an arbitrary type of data that a user wants. If a multiplex broadcasting record mode is set according to a request of a user, a telematics terminal displays a list of source data that the user can selects(S10,S11). If the user selects and designates plural source data, the telematics terminal selects each source data corresponding to the selected plural source data(S12,S13). After transmitting a record command for requesting a recording operation to a UWB storage device, a header and each broadcasting frame are configured in a format suitable for a PPDU of the UWB and transmitted(S16). After that, the UWB storage device stores the transmitted data in a storage.

Description

Apparatus and method for recording and reproducing multiplex broadcasting data using ultra wide band}

1 illustrates a configuration of a general vehicle A / V device,

2 illustrates an embodiment of an apparatus for recording and reproducing multicast data using ultra wide band according to the present invention.

3 illustrates an embodiment of multicast data transmitted and received according to the present invention.

4 is a flowchart illustrating an operation of a method for recording multicast data using ultra wide band according to the present invention.

5 is a flowchart illustrating an operation of a method for reproducing multicast data using ultra wide band according to the present invention.

※ Explanation of code for main part of drawing

10: DMB / DAB receiver 11: disc player

12: TV Tuner 13: Radio Tuner

14: display unit 15: controller

16: keypad 17-20: speaker

30: UWB Transmitter 31: UWB Receiver

32: UWB Mux 33: UWB Demux

40: UWB Receiver 41: UWB Transmitter

42: storage 300: telematics terminal

400: UWB Storage

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for recording and reproducing multi-broadcast data using an ultra wide band. For example, in a vehicle mounted telematics terminal, various types of data may be transferred to an ultra wide band (UWB). The present invention relates to a multi-broadcast data recording and reproducing apparatus and method using an ultra wide band for recording and reproducing to a specific storage medium in a vehicle.

1 illustrates a configuration of a general vehicle A / V device. For example, the vehicle A / V device includes a DMB / DAB receiver 10, a disc player 11, a TV tuner 12, Since the radio tuner 13, the display unit 14, the controller 15, the keypad 16, and the speakers 17 to 18 are configured to be included, the user operates the keypad 16 so that the user desires it. The type of data can be selected and viewed.

For example, the controller 15 operates and controls the DMB / DAB receiver 10 according to a user's request, so that a digital multimedia broadcasting (DMB) broadcast or digital audio broadcasting (DMB) desired by a user is desired. By selecting and receiving a broadcast, an audio or video is output and displayed.

In addition, the controller 15 controls the disc player 11 in response to a user's request, and records the A recorded on a digital versatile disc (DVD) or CD (CD) desired by the user. / V Selects and plays the data and outputs audio or video.

The controller 15 controls the TV tuner 12 or the radio tuner 13 according to a user's request, and selects and receives a desired TV (TV) broadcast program or a radio broadcast program. Audio or video will be displayed for output.

However, in the general vehicle A / V device, any one type of data selected by the user as described above, for example, a real-time broadcast such as DMB or DAB, is performed on the display unit 14 and the speaker. After the output is displayed through the fields 17 to 20, there is a problem that the user cannot replay the media data again.

In addition, there is a need for an efficient solution for recording various various types of data at the same time and then selecting and playing only one type of data desired by a user.

Accordingly, the present invention has been made in view of the above problems and circumstances, and for example, in a telematics terminal mounted in a vehicle, various types provided from radio tuners, TV tuners, disc players, DM receivers, and the like. Provides an apparatus and method for multi-broadcasting data recording and reproducing using ultra wide band for multiplexing data, recording to a UWB storage device in a vehicle through ultra wide band (UWB), and allowing a user to selectively play back a desired point in time. There is a purpose.

According to an aspect of the present invention, there is provided a multi-broadcast data recording method using an ultra wide band, comprising: selecting one source data of a plurality of source data requested for recording; Configuring the selected source data in an ultra wide band (UWB) PPDU format; And transmitting the data of the configured PD picture format through an ultra wide band to record the data in an external storage device.

In addition, the multi-broadcast data recording apparatus using the ultra wide band according to the present invention selects a plurality of source data, configures each broadcast frame and a header, and then uses an ultra wide band (UWB) PPDU format. Multiple means for multiplexing; And transmission means for transmitting data of the multiplexed format to the external storage device through the ultra wide band and recording the data.

In addition, the multi-broadcast data reproduction method using the ultra-wide band according to the present invention, which is multiplexed in the Ultra Wide Band (UWB) PPDU format, which analyzes the header of the data frame received from an external storage device. step; And two steps of processing the selected signal by reproducing and outputting data of any one broadcast type selected by the user as a result of the analysis.

In addition, the apparatus for reproducing a multicast data using the ultra wide band according to the present invention comprises: receiving means for multiplexing in an ultra wide band (UWB) PDU format and receiving data transmitted from an external storage device; Selecting means for analyzing the header of the received data frame and selecting data of any one broadcast type selected by the user; And playback means for signal-processing and outputting the data of any one selected broadcast type.

Hereinafter, exemplary embodiments of an apparatus and method for recording and reproducing multicast data using ultra wide band according to the present invention will be described in detail with reference to the accompanying drawings.

First, a multi-broadcast data recording and reproducing apparatus and method using an ultra wide band according to the present invention include a telematics terminal and a large-capacity storage, which are widely used and commercialized as a car navigation terminal. Applicable to the provided UWB storage device.

For example, as shown in FIG. 2, the telematics terminal 300 includes a UWB transmitter 30, a UWB receiver 31, and a UWB mux 32 and a UWB demux 33. In addition, the UWB storage device 400 includes a UWB receiver 40, a UWB transmitter 41, and a large capacity storage 42 such as a hard disk (HDD). do.

Meanwhile, in the UWB mux 32 of the telematics terminal 300, various types of source data provided by the vehicle A / V device, for example, a radio tuner 13, a TV tuner 12, Various source data provided from the disc player 11 and the DMB receiver 10 are multi-processed in a PPDU (PPDU) format of an ultra wide band (UWB).

For example, as illustrated in FIG. 3, the PPW of the wide band (UWB) includes a PLCP preamble (Physical Layer Convergence Procedure Preamble), a PLCP header, and a PSDU (PSDU) The PSDU includes a frame payload, a FCS, a tail bit, and a pad bit.

The frame payload may include a header and one or more source data frames. For example, the DMB data frame may include a broadcasting type indicating that the corresponding broadcast is a DMB. And broadcast information (Broadcasting Type) indicating a broadcast program name, a data length indicating the length of the data frame, and corresponding DM broadcast data.

The CD data frame includes a broadcast type indicating that the broadcast is a CD, broadcast information indicating an audio song name, a data length indicating the length of the data frame, and corresponding CD broadcast data. It is composed.

On the other hand, the header is composed of a device ID (Device ID), broadcast type (Broadcasting Type), and the data length (Data Length) that is unique identification information of the transmitting device, the device ID is telematics The unique device ID given to the terminal is recorded.

In the broadcast type of the header, information for indicating that each data frame is DMB data, CD data, or the like is recorded, respectively, and the total data length of each data frame is recorded as the data length of the header. .

Meanwhile, the data multiplexed in the PPDU format of the ultra wide band as described above, together with a command (Rec_Command) for requesting a recording operation, is transmitted to the UWB storage device 400 through the UWB transmitter 30 of the telematics terminal. Is transmitted to the UWB storage device 400, and receives the data, and performs a series of recording operations for storing the same in a storage 42 such as a hard disk.

Then, when the playback operation is performed at the request of the user, the data stored in the storage 42 is read and transmitted to the telematics terminal 300, and the telematics terminal 300 selects and selects the user. Since only one type of broadcast data is selected and only the corresponding broadcast data is output and displayed, the user can easily select and reproduce broadcast data of a desired type.

4 is a flowchart illustrating a method for recording multi-cast data using an ultra wide band according to the present invention. For example, as described above with reference to FIG. 2, the UWB transmitter 30 and the UWB receiver ( 31) In the telematics terminal 300, in which the UWB mux 32 and the UWB demux 33 are additionally included, when the multicast recording mode is set at the user's request (S10), the vehicle A / V By performing an interface operation with the controller 15 of the device, a list of source data selectable by the user is displayed (S11).

For example, a list of various source data provided from the radio tuner 13, the TV tuner 12, the disc player 11, and the DM receiver 10 is displayed on a user interface (UI) menu screen. When the user selects and specifies a plurality of source data (S12), the telematics terminal selects the corresponding source data (S13).

On the other hand, in the UWB mux 32, for example, when the user selects the DMB (DMB) broadcasting and the CD (CD) data, only the DMB broadcasting and the CD data of the various source data to be configured as a broadcast frame For example, as described above with reference to FIG. 3, the DMB data frame may include a broadcast type indicating that the broadcast is a DMB, broadcast information indicating a broadcast program name, and the like, and a corresponding data frame. And a data length indicating the length of the DMB broadcast data.

In addition, as described above with reference to FIG. 3, the CD data frame includes a broadcast type indicating that the broadcast is a CD, broadcast information indicating an audio song name, etc., and a data length indicating the length of the data frame. And the corresponding CD broadcast data.

Meanwhile, in the UWB MUX 32, a header corresponding to each broadcast frame of the DMB data frame and the CD data frame is configured (S15). As described above with reference to FIG. 3, the header is transmitted. It consists of a device ID which is unique identification information of the side device, a broadcast type, and a data length.

After transmitting a recording command (Rec_Command) requesting a recording operation to the UWB storage device, a series of headers configured as described above and each broadcast frame are configured and transmitted in a format suitable for PPW of UWB. UWB multicasting is performed (S16).

Meanwhile, in the UWB storage device 400 that receives the recording command, data transmitted in the PPDU format of the UWB is stored in the storage 42, and in the telematics terminal 300, If the recording mode is released while performing the series of multi-casting operations as described above (S17), the UWB storage device 400 transmits a command to stop recording, and then performs any corresponding operation requested by the user. (S18).

5 is a flowchart illustrating a method of reproducing a multicast data using an ultra wide band according to the present invention. For example, the telematics terminal 300 sets a multicast replay mode according to a user's request. In operation S30, a play command (Play_Command) requesting a play operation is transmitted to the UWB storage device 400, and thereafter, data of a PPDU format that is read and transmitted from the UWB storage device is received. (S31).

As described above with reference to FIG. 3, data frame header information is analyzed within a frame payload of a PSDU included in the received PPDU format data. For example, when the DMW data and the CD data are read and transmitted from the UWB storage device as multicast data, the UWB demux 33 of the telematics terminal may receive the current information through analysis of the header information. The broadcast is displayed on the broadcast list of the DMB data and the CD data (S33).

On the other hand, in the telematics terminal, when the user selects a certain broadcast type (S34), for example, when the user selects a DMB broadcast, the UWB demux 33 is included in the frame payload. Only data frames corresponding to DM broadcasts are output from each of the data frames (S35).

On the other hand, when the user selects the CD data, the UWB demux 33 selects and outputs only data frames corresponding to the CD data among the data frames included in the frame payload, and selects and outputs the data frames. Only the signal is processed and reproduced and output as audio and video (S36).

When the multi-cast playback mode is released (S37), a command for stopping playback is transmitted to the UWB storage device, and then any corresponding operation requested by the user is performed (S38). Thus, the telematics terminal and the UWB By using the storage device, various types of data desired by the user can be easily recorded and reproduced.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The apparatus and method for recording and reproducing multicast data using the ultra wide band according to the present invention, which is constructed and constructed as described above, may be used in, for example, a telematics terminal mounted in a vehicle, for example, a radio tuner, a TV tuner, a disc player, a DMB. Various types of data provided from a receiver or the like are multiplexed into an ultra wide band (UWB) PPDU format, and then transmitted and recorded through the ultra wide band to a UWB storage device located in a vehicle. By selecting and reproducing any desired type of data, the telematics terminal and the UWB storage device can be used to record and reproduce various types of data desired by the user more easily.

Claims (22)

Selecting any source data requested for recording among the plurality of source data; Configuring the selected source data in an ultra wide band (UWB) PPDU format; And And transmitting the data of the configured PDI format through an ultra wide band, and recording the data into an external storage device. 3. The method of claim 1, The method of recording a multi-broadcast data using an ultra wide band, further comprising displaying a list of selectable source data when setting a recording mode. The method of claim 1, And the source data is data provided from at least one of a radio tuner, a TV tuner, a disc player, a DM receiver, and a camera. The method of claim 1, The external storage device is a UWB storage device, characterized in that the UWB storage device equipped with a UWB transmitter and receiver and a large storage capacity. A plurality of means for selecting a plurality of source data, constructing each broadcast frame and a header, and then multiplexing them in an ultra wide band (UWB) PPDU format; And And transmission means for transmitting and recording the multiplexed format data to an external storage device through the ultra wide band. The method of claim 5, And a display means for displaying a selectable source data list when the recording mode is set. The method of claim 5, And the source data is data provided from any one or more of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 5, The data frame includes at least one of broadcast type, broadcast information, data length, and broadcast data. The method of claim 5, And the header includes one or more of terminal identification information, broadcasting type, and data length. The method of claim 5, The external storage device is a UWB storage device equipped with a UWB transmitter and receiver and a large storage capacity, characterized in that the multi-broadcast data recording apparatus using an ultra wide band. Parsing a header of a data frame received from an external storage device by multiplexing in an ultra wide band (UWB) PPDU format; And And analyzing the data of any one broadcast type selected by the user as a result of the analysis, and performing two steps of reproducing and outputting the selected signal. The method of claim 11, A method of reproducing multicast data using an ultra wide band, characterized by further comprising displaying a user selectable broadcast list. The method of claim 11, And the broadcast type data is any one or more of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 11, The data frame includes at least one of broadcast type, broadcast information, data length, and broadcast data. The method of claim 11, The header includes at least one of terminal identification information, broadcast type, and data length. The method of claim 11, The external storage device is a UWB storage device having a UWB transmitter and receiver and a large capacity storage, characterized in that the multi-broadcast data reproduction method using the ultra wide band. Receiving means for multiplexing in an ultra wide band (UWB) PPDU format and receiving data transmitted from an external storage device; Selecting means for analyzing the header of the received data frame and selecting data of any one broadcast type selected by the user; And And reproducing means for signal-processing and reproducing and outputting the data of any one selected broadcast type. The method of claim 17, An apparatus for reproducing multiple broadcast data using an ultra wide band, characterized by further comprising display means for displaying a user selectable broadcast list. The method of claim 17, And the broadcast type data is any one or more of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 17, The data frame includes at least one of broadcast type, broadcast information, data length, and broadcast data. The method of claim 17, The header includes at least one of terminal identification information, broadcast type, and data length. The method of claim 17, The external storage device is a UWB storage device equipped with a UWB transmitter and receiver and a large storage capacity, characterized in that the multi-broadcast data reproduction apparatus using the ultra wide band.

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