KR19980074989A - Ioen information storage processing method of car audio for RDS broadcasting reception - Google Patents

Abstract

The present invention relates to an EON information storage processing method of an audio broadcasting car audio receiving system, wherein the audio receiving function mode is set in the audio broadcasting system for the audio broadcasting stored in the preset radio button. If no RS data is received after the execution of the RS reception function, and if the 14A data is inputted, the ID data input judgment is made. If it is judged during the IFA data input judging step, if the Io 14A data is being received, the currently received Io 14A data is checked with the PI code and Ioprest stored in the full memory section and the preset button section. While deleting the same P. code, the data of the preset button part are continuously It is composed of the IC data processing step, so it is not necessary to clear all the stored data of the IC memory in accordance with the function mode switching, thereby improving the functionality of the system.

Description

Ioen information storage processing method of car audio for RDS broadcasting reception

The present invention relates to an EON information storage processing method of a car audio for receiving an RDS broadcast, and in particular, to store an ionpriest of an ion full memory in a memory means of a preset button and receive the ion data. In this case, it is not necessary to clear all the stored data of I / O pool memory according to the function mode switching by checking the PI code information in the full memory and preset memory so as to improve the system functionality accordingly. The present invention relates to a method for storing Ioen information stored in a car audio for receiving an RDS broadcast.

In general, broadcasting by RDS system (Radio Data System) multi-modulates digital code or voice data by frequency spectrum margin (53kHz ~ 100kHz) of existing FM broadcasting. Refers to providing various additional services such as time information, wireless call, and the like.

In addition, as shown in FIG. 1, the apparatus for receiving an RDS broadcast receiver includes a tuner unit 70 for tuning a general broadcast signal or an RDS broadcast signal existing in a broadcasting frequency band (VHF / FM). And a predetermined signal processing of the broadcast frequency signal tuned by the tuner unit 70, for example, an information signal processing unit 71 for processing a demodulation signal, and a broadcasting information signal input from the information signal processing unit 71 at a constant output level. An output amplifier 72 for output amplification, an multiplex signal among the broadcast information signals of the information signal processing unit 71, for example, an AL decoder 73 for decoding an information code signal such as a character broadcast signal, and an AL decoder ( 73) RDS signal processing of multi information code signal decoded in accordance with R.S., for example, checking multi information code signal composed of 4 input blocks to execute auto tuning, character broadcasting execution or broadcasting station automatic switching function. Microcomputer 74 for controlling the overall operation, and the main memory unit for storing general data by the input and output control signals of the microcomputer 74, in particular, the DS data, in particular PI code and AF data of the EON full memory 75 and an LCD panel 76 which displays character data of a character broadcast to the outside in accordance with the RS display control signal of the microcomputer 74. FIG.

One end of the output amplifier 72 is connected to a speaker 77 for emitting a broadcast information signal to the outside.

Here, the EON POOL MEMORY stored in the main memory unit 75 is, for example, a 20PI (PROGRAM IDENTIFICATION) code and 25 AF (ALTERNATIVE FREQUENCIES) lists are assigned to each of the PI codes. have.

On the other hand, referring to the operation of the conventional RDS broadcast receiver configured as described above, first, during the vehicle operation, the user turns on the car audio system to execute the desired car audio function, in which case the user selects the radio If set, the microcomputer 74 recognizes this and executes a radio tuning function.

That is, the tuner unit 70 tunes the radio broadcast set by the user through the key input unit 78. At this time, when the tuner unit 70 receives the character broadcast which is one of the RDS broadcasts, The text broadcasting signal is signal-processed by the information signal processor 71 into a constant level frequency signal. Then, the RD decoder 73 decodes the RDS multiple information code including the character broadcasting signal from the broadcast output signal of the information signal processing unit 71 and inputs it to the microcomputer 74. Then, the microcomputer 74 processes the inputted RS multiple information code signal into a data signal and inputs the same to the LCD panel 76. Accordingly, the LCD panel 76 converts the inputted character broadcasting data into characters. However, if the RS is transmitted while other vehicles (EON = ENCHANCED OTHER NETWORK) are not being received in the receiving station currently receiving while the vehicle is moving, The data EON DATA is decoded by the RS decoder 73 and input to the microcomputer 74. Then, the microcomputer 74 searches for the PI code and the AF list memory in the I / O memory, which is cleared after the main memory unit 75 is cleared by the 14A data of the RS decoder 73, and the selected object is selected. It automatically tunes to a frequency and receives the corresponding RS multiplex. When the RS multiplex broadcasting of Ioen ends, it returns to the broadcast which was originally listened, and receives the original broadcast.

However, in the conventional RDS broadcast receiver as described above, when the band is switched, powered on / off or auto-tuned, the EON AF LIST is cleared after clearing all the stored information. Because it takes a long time to save a new EON AF list, the responsiveness of the system is considerably deteriorated. Also, if 14A data is received while saving a new EON AF list, EON JUNPING is executed. I couldn't. In addition, EON POOL MEMORY consists of multiple PI codes.For example, if 20PI codes are registered, this ion pool memory is difficult to overwrite newly entered PI codes in addition to the existing PI codes. In the case of / off operation or auto-tuning, there is a problem in that EON AF LIST must be newly stored after clearing all the stored information.

Therefore, the present invention was invented to solve the above-mentioned problems. When the EON AF list of the EON full memory is stored in the memory means of the preset button, and the EON data is received. By checking the PI code information in the full memory and the preset memory to keep the latest data, it is not necessary to clear all the stored data of the I / O full memory according to the function mode switching, thereby improving the system functionality. Its purpose is to provide an EON information storage processing method for car audio for RDS broadcast reception.

Another object of the present invention is to receive the EON data storage processing method of the car audio for the RDS broadcast reception, so that the response of the system can be significantly improved accordingly, even if the function mode of the system is switched. To provide.

In order to achieve the above object, the present invention provides an RDS reception function that executes an RDS reception function when an RDS reception function mode is set in an RDS broadcast reception car audio system in which an EOS Prest is stored in a preset button. If the RS data is not received after the function execution step and the RS receiving function execution step, the IC data input determination step for judging whether or not the 14A data is inputted, and the IC data input determination step Result If IoE 14A data is being received, the same IoE 14A data is checked with the PI code and IoEprest stored in the full memory section and the preset button section, and the same PI code is deleted, and the preset button section is continuously IFO data processing step to update data It characterized by comprising.

1 is an explanatory diagram for explaining a conventional audio broadcasting car audio.

2 is an explanatory diagram illustrating a car audio system to which the present invention is applied;

3 is an explanatory diagram for explaining an embodiment in which the EON AF list of the present invention is stored in a preset button;

4 is a flowchart of the present invention.

<Explanation of symbols for main parts of drawing>

1: tuner portion 2: information signal processing portion

3: output amplifier 4: RDS decoder

5: microcomputer 6: main memory

7: Preset button part 8: LCD panel

9: speaker 10: key input unit

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the apparatus for receiving an RDS broadcast receiver includes a tuner unit 1 for tuning general broadcast signals or RDS broadcast signals existing in a broadcasting frequency band (VHF / FM), and the tuner unit. (1) Constant signal processing of the broadcast frequency signal tuned by (1). For example, an information signal processing section 2 for demodulating signal processing, and an output amplifying the broadcast information signal inputted from the information signal processing section 2 at a constant output level. The amplification section 3 and the multiplex signal among the broadcast information signals of the information signal processing section 2, for example, an RS decoder 4 which decodes an information code signal such as a character broadcast signal, and this RS decoder 4 Processing the decoded multi-information code signal by RS signal, for example, checking the input multi-information code signal consisting of four blocks to execute auto-tuning, character broadcasting execution or automatic station switching function, and overall system operation. The main memory unit 6 which stores general data by the input / output control signal of the microcomputer 5, the main memory unit 6 which has a full memory of the RS data, and the storage control signal of the microcomputer 5 As a result, a preset button unit 7 for selectively storing the EON AF LIST in the EON POOL MEMORY as shown in FIG.

And, one end of the microcomputer 5 is connected to the LCD panel 8 for displaying the character data of the character broadcast to the outside according to the RS display control signal, and one end of the output amplifier () is provided with a broadcast information signal The speaker 9 emitting to the outside is connected.

Here, for example, the preset button unit 7 may consist of six buttons M1-M6 so that a plurality of information signals may be stored.

In addition, the baseband encoding structure of the RDS broadcast is composed of a group of 104 bits, which is composed of four blocks. This one block is again composed of 26 bits, which in turn consists of 16 bits of information words and 10 bits of check words. Also, blocks in one group include A, which is added to blocks 1, 2, 3 and 4 of each group. It is distinguished by B, C or C and D offset.

In addition, the first block of each group always includes a PI (PROGRAM IDENTIFICATION) code indicating a country, a region, and a broadcasting station identification code, and in a fixed position in block 2, PTY (PROGRAM TYPE; 31) or TP ( TRAFFIC PROGRAM) codes are also used. Group applications are described by a 4BIT code defining the group type, which is transmitted as the first 4BIT of the second block of each group and the fifth bit is the VERSION (A or the group type). Define B). For example, if the application of the group form is EON (ENHANCED OTHER NETWORK), it is stored as 14A.

Next, the method of the present invention to be applied to an apparatus having such a configuration will be described.

First, while the vehicle is running, the user turns on the car audio system to execute the desired car audio function. At this time, the microcomputer 5 proceeds to the determination function setting step S2 at the initial state S1 and the current car. It is determined whether the RDS reception mode is set in the audio system. In addition, if it is determined during the RS function setting determination step (S2) that the RDS reception function mode is not set, the operation proceeds to the general car audio function execution step (S3), for example, the cassette tape playback function. Run

However, as a result of the determination during the RS function setting determination step (S2), if the RDS reception function mode is set, the process proceeds to the execution of the RDS reception function (S4) to execute the RDS reception function. After the DS receiving function execution step (S4), it proceeds to the RDS data receiving determination step (S5) to determine whether the current RDS data is received, and if it is determined that the current RDS data is being received, returns to the previous step (S4). Iterate through the loop However, as a result of the determination during the RDS data receiving determination step S5, if the RDS data is not currently received, the process proceeds to the EON AF data input determination step S6 to determine whether the EON 14A data is input. When the EON 14A data is not received as a result of the determination during the EON AF data input determination step (S6), the process returns to the execution of the RDS reception function (S4) and repeats the loop. However, if it is determined during the EON AF data input determination step S6 that the EON 14A data is being received, the process proceeds to the EON AF data processing step S7 and the currently received EON 14A data is transferred to the full memory unit and the preset button unit. While checking the saved PI code and EON AF list, the preset button data is continuously updated and automatically synchronized with the EON AF.

That is, the tuner unit 1 tunes to the radio broadcast of the RDS reception mode set by the user through the key input unit 10. At this time, when the tuner 1 receives a text broadcast, one of the RDS broadcasts, is received. The received high frequency character broadcast signal is signal-processed by the information signal processor 2 into a constant level frequency signal. Then, the RS decoder 4 decodes the RDS multiple information code including the character broadcast signal from the broadcast output signal of the information signal processing unit 2 and inputs it to the microcomputer 5. The microcomputer 5 checks whether or not the inputted multiplex information code signal matches the PI code stored in the data signal, that is, the full memory, and automatically tunes it if it matches. The multi-information code signal is input to the LCD panel 8 so that the LCD panel 8 displays the inputted character broadcast data in text.

However, if the RS broadcast is not received in the receiving station currently being received while the vehicle is moving, the other broadcast data (EON = ENCHANCED OTHER NETWORK) is transmitted to the RS broadcast data. The decoder 4 is decoded and input to the microcomputer 5. Then, the microcomputer 5 has codes corresponding to the PI codes stored in the EON 14A data of the RDS decoder 4 in the full memory and the preset buttons M1-M6 of the preset button unit 7. If there is no identical PI code, the received data is stored in the preset button unit 7 after searching. However, if there is a PI code that matches the currently received EON 14A data, the same PI code is deleted. Then, the AF list corresponding to the EON 14A is searched and automatically tuned to the selected target frequency to continuously receive the corresponding RS multiplexed information to continuously update the EON AF list in the preset button unit 7. When the RS multiplex broadcasting of Ioen ends, it returns to the broadcast which was originally listened, and receives the original broadcast.

Therefore, according to the present invention, since the EON AF list is stored in the preset button unit 7, the data in the EON POOL memory need not be cleared even if the band switching or auto tuning function is executed. There is no need for time required, and since the same PI code is deleted while the EON AF list stored in the preset button unit 7 is continuously updated, there is no need to clear the data.

As described above, the present invention stores the EON AF list of the EON full memory in the memory means of the preset button, and when the ION data is received, the PI in the full memory and the preset memory is stored. By checking the (PI) code information and continuously storing the latest data, it is not necessary to clear all the stored data of the I / N pool memory according to the function mode switching, thereby improving the functionality of the system. Even if ION data can be received immediately, the responsiveness of the system is greatly improved.

Claims (1)

If the RX reception function mode is set in the RDS broadcasting car audio system in which the EOS Prest is stored in the preset button, the RDS reception function is executed to execute the RDS reception function, and the RDS reception function is executed. If the RS data is not being received after the step, the IC data input determination step for judging whether the 14A data is inputted and if the 14F data is received, An IC data processing step of confirming the received IOEN 14A data with the PI codes stored in the full memory unit and the preset button unit and the IO APREST and deleting the same PI code and continuously updating the data of the preset button unit. AlDS Broadcasting, characterized in that consisting of Credit Car Audio twenty-five yen information storage method.