KR101421291B1 - Apparatus and method for receiving data including traffic program - Google Patents

Abstract

The present invention relates to data reception including traffic broadcast (TP). In the search of a TP program, search and tuning are performed using the transmission range data of the PI code and TP and TA information.

       Traffic broadcast, traffic broadcast notification, transmission range, frequency

Description

[0001] Apparatus and method for receiving data [0002]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic system block diagram illustrating the setting of a transmission range between a user and a receiver, for example Car Audio, according to the present invention; FIG.

2 is a diagram for explaining the basic configuration of a wireless data system receiver (120 in FIG. 1) according to the present invention;

3 is a block diagram illustrating a wireless data system receiver (120 in FIG. 1) according to another embodiment of the present invention.

4 is a diagram showing the structure of the PI code and the code-specific information indicating each case of 16 with the second nibble code of 4 bits in the PI code

5 is a diagram showing transmission ranges (L, N, I, and the like) that can be represented by the second nibble code in FIG.

6 is a diagram showing transmission band selection by SEEK, TP and TA in the frequency band

7 is a flowchart showing a data transmitting / receiving method based on information indicating a transmission range and a traffic broadcast according to the present invention.

The present invention relates to an apparatus and a method for searching and tuning a program based on a PI (Program Identification) code and TA information in a Radio Data Syatem (hereinafter referred to as RDS).

Generally, in the search and tuning of a traffic program (hereinafter referred to as a TP (Traffic Program)) of a conventional program, the first search is performed in the process of searching all the radio bands without priority.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is proposed to receive broadcasts by setting transmission priority data and tuning based on TA, transmission range data, TP (traffic broadcast) request and / or TA.

The transmission range data of the present invention can be represented by the information in the PI code. That is, the second nibble of 4 bits of the 16-bit PI is a transmission range selected by the user from among L (Local), I (International), N (National), S (Supra- To search / tune the TP.

The present invention proposes to retrieve and synchronize the TP based on the selected transmission range information while maintaining the currently operating medium (radio or CD, CDC, etc.) based on the TP request.

In the present invention, when a reception signal from the outside is not an operation by an input to a tuner but a data such as a CD is output after a TP request, a traffic announcement flag (TA) And to be synchronized based on.

According to an aspect of the present invention, there is provided a data receiving apparatus including: a tuner for receiving a broadcast; Storage means for storing broadcast program frequency information and set transmission range information; And a control unit for receiving broadcast information based on at least one of the set transmission range information and the traffic announcement information.

Also, the data reception method according to the present invention receives the traffic broadcast (TP) by setting the traffic broadcast priority (TP) based on the transmission range information of the program identification (PI) code and the traffic broadcast (TP) request.

Requesting traffic broadcast information to receive data including traffic broadcast information; Setting a transmission range of the traffic broadcast; And using traffic broadcasting based on the set traffic range information.

Hereinafter, a data receiving apparatus and method according to the present invention will be described in detail with reference to the drawings.

First, the outline of the present invention and the operation procedure will be described.

In a radio program using a Radio Data System (RDS), a TP program is searched and tuned by using the transmission range data and the TP / TA (Traffic Anouncement) information of the PI code.

Meanwhile, the terms "RDS", "PI", or "TP / TA" mentioned in the present invention have selected general terms that are widely used as far as possible, but in certain cases, there are terms selected arbitrarily by the applicant, It is to be understood that the present invention should be grasped as a meaning of a term other than the name of a simple term.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a general system block diagram showing the setting of a transmission range between a user and a receiver, for example, Car Audio according to the present invention; FIG.

As shown in the figure, the user 110 and the receiver 120 transmit / receive data via wire / wireless.

The user requests the TP 120 from the receiver 120 through an input device, for example, a keyboard, a mouse, or a microphone. (S 101).

On the other hand, the transmission range is requested by the receiver 120, for example, Car Audio, PC (Personal Computer), PDA, WIBRO, DMB, and Handphone, which are one of portable terminals. (S 102).

On the other hand, the user selects and transmits the transmission range. (S103).

In the above, the user may transmit the transmission range together with the TP request.

On the other hand, the transmission range is included in the second nibble code of the PI code, and is represented as shown in FIG. (130 in Fig. 1).

That is, it indicates 16 pieces of information classified into I (International), N (National), S (Supra-regional), R1 to R12 (Regional) and L (Local).

The 16 types of information are represented by respective binary numbers. For example, I can be represented by "0001" or the like.

The L (Local) represents a local program broadcasted through only one transmitter during a program broadcast time. (Local program transmitted via a single transmitter only during the whole transmitting time)

I (International) represents a program in which the same program is broadcast in another country. (The same program is also transmitted in other countries)

N (National) represents a program in which the same program is broadcast in every region in the country. (The same program is transmitted throughout the country)

The S (Supra-regional) represents a program broadcast over a wide area in one country. (The same program is transmitted throughout a large part of the country)

R 1 to R 12 (Regional) denotes a program that is broadcast only in one area via one or more frequencies. (The program is available only in one location or region, )

2 is a diagram for explaining a basic configuration of a wireless data system receiver (120 in FIG. 1) according to the present invention.

2, the wireless data system RDS receiver includes a key input unit 250 for inputting a user command, an RDS tuner 210 for receiving a wireless data broadcast through an antenna (not shown) A broadcast signal processing unit 220 for processing the signal output from the RDS tuner in accordance with the output unit 230 and outputting the processed signal to a storage unit 240 for storing wireless data broadcast program information, And controls to control the components according to a user command inputted through the input unit 250 and to receive broadcasting information based on at least one of transmission range information or traffic announcement information (TA flag) set by the user And controls the alternative frequency search process in accordance with the program identification (PI) code information of the current frequency when the received broadcast signal quality is equal to or less than a set reference value It is configured, including 260.

In the wireless data system receiver according to the present invention configured as described above, when the signal quality of the broadcast program received at the current frequency (MF) becomes equal to or less than a set reference value, the controller 260 outputs a signal of a good quality The quality of the signal received for the current frequency and for the alternate frequency stored in the storage means 240 for switching to the alternate frequency on which it is received.

The control unit 260 tunes the RDS tuner 210 at each of the alternative frequencies and tunes a signal broadcast at the frequency of each of the RDS tuners 210 and outputs the signal to the broadcast signal processing unit 220.

The broadcast signal processing unit 220 processes the RDS composite signal output from the RDS tuner 210 and outputs an audio signal and RDS data to the output unit 230 and the control unit 260.

The control unit 260 determines the quality of the broadcast signal received from the signal output from the broadcast signal processor 220 and determines the quality of the broadcast signal for the current frequency and the alternative frequency stored in the storage unit 240 The second nibble code information of the PI code of the current frequency is used or the second nibble code information of the PI code is substituted with the alternative frequency list completion flag information The frequency search process is controlled.

Also, the control section generally searches / tunes the frequency of the transmission range in the ascending order based on the transmission range information set by the user, but it can also search / tune in descending order.

For example, if the user's transmission range selection is National, the transmission range selected by the receiver will be National or International.

3 is a block diagram illustrating a wireless data system receiver (120 of FIG. 1) in accordance with another embodiment of the present invention.

The controller 300 includes a signal quality detector 302 for detecting an output level of the demodulator 321 and an output of the RDS data processor 323 to determine a received signal quality and outputting the signal quality, A SEEK PI deciding unit for deciding whether to perform the SEEK PI process based on the transmission range of the second nibble code information of the PI code or using the second nibble code information of the PI code of the current frequency in accordance with the output of the PI code 303 and a microcomputer 304 for controlling an alternative frequency search process in accordance with the output of the SEEK PI decision unit 303.

The signal quality detecting unit 302 and the SEEK PI determining unit 303 and the functions of the microcomputer 304 may be substituted.

At this time, the SEEK PI decision unit 303 uses the second nibble code information of the program identification (PI) code of the current frequency or the second nibble code information of the PI code to determine whether to perform the SEEK PI process Together, the alternative frequency list completion flag information is used.

FIG. 4 is a diagram showing the structure of the PI code and the code-by-code information indicating each case of 16 as the second nibble code of 4 bits in the PI code.

Referring to FIG. 4, one frame transmitted is composed of a PI code of 16 bits (401) and broadcast information of 88 bits (402), and the most significant 4 bits (b15-b12) (B11-b8) (second nibble) represents the program type information on the transmission area range to which the broadcast is transmitted, and the lower 8 bits ( b7-b0) (3rd and 4th nibble) represents a program reference number for the program itself.

Referring to FIG. 4, the second nibble 4 bits indicating the program type information about the area range to which the broadcast is transmitted are L (Local), I (International), N (National), S ~ R12 (Regional).

The 16 types of information are represented by respective binary numbers. For example, L can be expressed as "0000", I as "0001", and so on.

The L (Local) represents a local program broadcasted through only one transmitter during a program broadcast time. (Local program transmitted via a single transmitter only during the whole transmitting time)

I (International) represents a program in which the same program is broadcast in another country. (The same program is also transmitted in other countries)

N (National) represents a program in which the same program is broadcast in every region in the country. (The same program is transmitted throughout the country)

The S (Supra-regional) represents a program broadcast over a wide area in one country. (The same program is transmitted throughout a large part of the country)

R 1 to R 12 (Regional) denotes a program that is broadcast only in one area via one or more frequencies. (The program is available only in one location or region, ).

Therefore, by using the information included in the second nibble code, it is possible to know whether or not there is a possibility that the same program is broadcasted around, and the SEEK PI process is performed only when there is a possibility that the same program is broadcasted around do.

The program reference number 401c distributes the 1-byte data systematically to each of the countries in order to clearly distinguish the different program groups, and connects the program groups in a comprehensive manner.

FIG. 5 is a diagram showing transmission ranges (L, N, I, and the like) that can be represented by the second nibble code in FIG.

As shown in the figure, PI: X1XX (500) represents I (International), which indicates a program in which the same program is broadcast in other countries.

Also, PI: X2XX (502) represents N (National), which indicates a program in which the same program is broadcast in all the regions within the country.

Also, PI: X3XX (503) represents a program broadcast over a wide area in one country, representing S (Supra-regional).

Also, PI: X4XX (504) represents R1 to R12 (Regional), and represents a program broadcast only in one area via one or more frequencies.

On the other hand, L (Local) is a case where there is no alternative frequency, and represents a region to be transmitted only for a specific area such as "Sound of a citizen of Suwon. &Quot; R transmission range is smaller than R.

6 is a diagram showing transmission range selection by the SEEK, TP and TA in the frequency band.

As shown in FIG. 6A / 6B, the receiver searches the entire radio band (f1-f4) and extracts the RDS data when the tuner is not used or if the TP search is performed even if CD or CDC is used, Finds the program closest to the range of the user's choice in the broadcast that transmits the information.

For example, if the user's transmission range selection is national (N or I), select f1, and if regional, select f3.

On the other hand, if the TP search is performed, the corresponding broadcast is tuned. If the mode is other than the tuner (CD, CDC, ...), the corresponding mode is executed and the TA information is monitored. At this time, if TA = 1 is detected, the corresponding mode is stopped and traffic information is informed to the user, and when TA = 0, the mode returns to the original mode.

The combination meaning of TP / TA in FIG. 6B will be described by way of example.

When TP = 0 and TA = 0, traffic information is not transmitted, and traffic information transmitted by another program is not quoted through EON (Enhanced Other Network Information).

 When TP = 0 and TA = 1, EON information about other programs that transmit traffic information is transmitted.

 When TP = 1 and TA = 0, it transmits traffic information but does not broadcast at present and does not transmit EON information about other traffic information.

If TP = 1 and TA = 1, the current traffic information is broadcast.

FIG. 7 is a flowchart illustrating a data transmission / reception method based on information indicating a transmission range and a traffic broadcast according to the present invention.

The user requests a traffic broadcast (TP) to the receiver. (S701).

On the other hand, the receiver requests the transmission range of the traffic broadcast, and the user selects and transmits the transmission range. (S702).

In the above steps S 701 and S 702, the user may transmit the traffic broadcast transmission range at the time of the TP request.

Check the current receiver mode. (S703).

If it is determined that the receiver mode is Radio Mode, the TP received through the tuner is searched as shown in FIG. 6A and tuned to the traffic broadcast suitable for the selected transmission range. (S 704, S 705).

On the other hand, if the mode of the receiver is not the Radio mode in the above step, for example, CD, CDC, and the like are searched for TP. (S706).

And waits for traffic broadcast in the searched traffic broadcast range. (S707).

In this case, the TA value is monitored. At this time, when a predetermined value, for example, "1" (S 708, S 709, S 710).

On the other hand, if the TA value is a predetermined value, for example, "0 ", the current standby mode is maintained. (S711).

The flow order of the present invention and other flow order of the present invention as described above are shown as an example, and the order of operations may be changed and operated. For example, S 701 and S 702 may be performed in one step.

As described above, an apparatus and method for transmitting and receiving data according to an embodiment of the present invention can search and synchronize a TP program using a transmission range data and TP information of a PI code in a radio using RDS (Radio Data System) .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. , Alteration, substitution, addition, or the like.

The apparatus and method for transmitting / receiving data according to the present invention can perform searching and tuning in priority order using PI code when searching for a TP program in a Radio using RDS (Radio Data System).

Claims (8)

A method of searching for a traffic program by a device receiving a Radio Data System (RDS) Searching traffic broadcasts within the entire radio frequency band; Extracting RDS data corresponding to the retrieved traffic broadcast; Determining whether a transmission range in a program identification (PI) code on the RDS data matches a user setting transmission range set by a user; And Tuning a traffic broadcast in which the transmission range and the user setting transmission range coincide among the one or more traffic broadcasts searched for How to find a program. The method according to claim 1, Periodically checking a Traffic Announcement Flag (TA Flag) of the RDS data when the current mode of the device receiving the wireless data system is the first mode, not the radio mode; And And if the TA flag is 1, tuning and outputting a broadcast corresponding to the TA flag How to find a program. 3. The method of claim 2, Periodically checking whether the TA flag of the RDS data changes to 0 when the broadcast corresponding to the TA flag is tuned and output; And And converting the TA flag to the first mode when the TA flag is changed to 0 How to find a program. delete delete delete delete A tuner for receiving a Radio Data System (RDS); Storage means for storing frequency information of a broadcast program included in the RDS and a user-set transmission range set by the user; And  The RDS data corresponding to the retrieved traffic broadcast is extracted and the transmission range in the program identification (PI) code on the RDS data is matched with the user setting transmission range And a controller for tuning a traffic broadcast in which the transmission range matches the user setting transmission range among the one or more traffic broadcasts searched for Wireless data system receiver.

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