KR100203464B1 - An audio-sound control method of car-audio using ic card - Google Patents

Abstract

The present invention relates to a method of controlling audio sound of a car audio using IC card. By using the preset key of the car audio, the user can store the preferred volume level in multiple stages and press this preset key when adjusting the volume level. As the volume of car audio is automatically adjusted according to the volume control level signal stored in the preset key, it is not necessary to operate the key repeatedly for a certain amount of time to control the volume of the car audio, thereby improving convenience of use. The level can be used to maintain the optimal audio volume for the user's preferences at all times, thus improving the system's optimality.

Description

How to adjust audio sound of car audio using IC card

The present invention relates to the audio sound control method of the car audio using IC card, and in particular, the audio level control level signal is classified into multiple stages according to the user's preference and stored in the IC card through the preset key, and the audio sound level is adjusted. By selecting the audio sound control signal of the multi-stage stored in this IC card to adjust the audio sound, the IC card does not need to be repeatedly operated for a certain time to control the audio sound. It relates to an audio sound control method of the car audio.

In general, a car audio is provided on the instrument panel of the vehicle to provide broadcasting or music to the vehicle occupants, such car audio is usually composed of a control unit and the body. However, these car audio is a relatively expensive item and can be easily separated from the instrument panel, and thus has been frequently subject to theft from thieves during parking.

Therefore, in order to alleviate the above drawbacks, an IC card insert car audio with a stored password is used. The IC card insert car audio is separated into a car body as shown in FIG. The main body 70 of the car audio to be processed is connected to the main body 70 through a connector 71 to input a password code signal so that the IC card 72 controls the function of the car audio, and the main body 70. The microcomputer 75 which receives the setting signals of the function setting switches 74a-n formed on the front panel 73 of the control panel and controls the set functions in general, and the code confirmation control signal of the microcomputer 75. As a result, the memory unit 76 stores the password signal.

In addition, a circuit coupling pin 77 is formed at the distal end of the IC card 72.

On the other hand, looking at the operation of the IC card insert-type car audio as described above, first, if you want to use the car audio IC card 72 is inserted into the connector 71 of the front panel portion 73. Then, the circuit coupling pin 77 formed at the distal end of the IC card 72 is electrically connected to the connector 71 provided at the front panel 73. When the user presses the password confirmation button 74a installed on the front panel 73, the microcomputer 75 connects the password embedded in the IC card 72 to the circuit coupling pin 77 and the connector 71. Input to the microcomputer 75 through. Therefore, the microcomputer 75 compares the input password with a preset password built in the memory unit 76, and if it does not match, recognizes the system as stolen and does not operate the car audio. However, if the entered password matches the preset password, the car audio function is executed. That is, when the user turns on the power setting switch 74a-n, for example, the power switch, the microcomputer 75 recognizes this and executes a radio reception function.

However, when the IC card 72 is detached during operation of the system, the conventional IC card inserting car audio may be a function control level signal of the audio signal set by the user according to his or her preference, for example, the volume of the audio signal. ), The control level signals such as TRE, BASS, and LOUD are all cleared, and when reinserting, the function control level signals have to be reset over a certain time. Further, since the IC card 72 is reinserted and the complex key operation is re-executed during operation, there is a problem in that the safety of the vehicle operation is also significantly reduced.

Therefore, the present invention was invented to solve the above-mentioned problems, and the audio level control level signal can be classified into multiple stages according to the user's preference and stored in the IC card through the preset key and the audio sound level can be adjusted. By selecting the audio sound control signal of the multi-stage stored in the card to adjust the audio, it is not necessary to operate the key repeatedly for a certain time to control the audio sound. The purpose is to control audio sound of audio.

Another object of the present invention is to select the multi-stage audio sound level signal stored in the memory card of IC card to maintain optimal audio sound according to user's preferences at all times. To provide an automatic volume control method of the car audio.

According to the present invention for achieving the above object, the audio sound multi-level storage setting judgment step of determining whether a key signal for setting the audio card to be stored in multiple stages in the IC card insert-type car audio system, and the audio sound multi-stage storage As a result of the judgment during the setting judgment step, if the multi-stage audio recording function is set, the detailed function key input judgment step of determining whether the set detailed audio sound control key is input, and the result of the judgment during this detailed function key input judgment step If the detailed function key has been entered, the adjustment level value input completion judgment step of displaying the set detailed function key and judging whether the setting of the adjustment level value of the detailed audio sound control key is completed, and the judgment result during this adjustment level value input completion judgment step If the control level value of the detailed audio sound control key is set, the set control level The preset key input judging step of judging whether or not the preset key for storing the " The IC card storage step of storing the negative adjustment level value in the memory means of the IC card and displaying the stored information on the LCD, and whether or not another fine adjustment function has been set after the IC card storage step is determined, and the judgment result When another audio sound detail adjustment function is set, the method returns to the detailed function key input determination step, and the next detailed function setting decision step of repeating the loop is performed.

1 is an explanatory diagram illustrating a conventional car audio,

2 is an explanatory diagram illustrating an apparatus to which the present invention is applied;

3 is a flowchart of the present invention.

* Explanation of symbols for the main parts of the drawings

1: memory means 2: IC card

3: connector 4: main body

5: Function setting switch 6: Circuit coupling pin

7: microcomputer 8: main memory

9 antenna 10 tuner section

11: information signal processor 12: audio sound control IC

13: Output control IC 14: Preset button

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

Apparatus to which the present invention is applied is an IC card (2) having a memory means (1) detachable from the car audio system and embedded with a password as shown in Figure 2, the IC card (2) is a coupling connector ( 3) the main body 4 which executes the function of the car audio system when the password inserted and set is matched.

The IC card 2 is provided with a memory means 1 having a built-in password and, for example, E ² PROM, ROM, CPU, RAM, and the like, and a function setting switch 5a at the front end of the main body 4. n) For example, a power button 5a for supplying power or a coupling button 5b for inputting the IC card 2 is installed, and an internal circuit is provided at the lower end of the IC card 2. The circuit coupling pin 6 is connected to the circuit of the main body 4.

On the other hand, the main body 4 has a microcomputer 7 for controlling the overall car audio function by comparing the unique password information of the IC card (2) input through the connector 3, and of the microcomputer (7) The main memory unit 8 stores the reference password signal of the user by the code confirmation control signal, and the multi-channel broadcast signals input through the antenna 9 according to the pre-international language signal of the microcomputer 7 A tuner section 10, an information signal processing section 11 for processing a high frequency information signal tuned by the tuner section 10 at a low signal level, and an audio sound level control signal of the microcomputer 7; The audio sound control IC 12 for adjusting the volume of the car audio according to the present invention, the output control IC 13 for amplifying the broadcast output signal inputted by the audio sound control IC 12 to a predetermined output level, and the microcomputer. Audio sound level currently set to (7) It consists of a preset button unit 14 for inputting a plurality of ring signals.

And, one end of the car audio micom (4) is connected to the volume up / down switch 15 for setting the user's volume up / down level control signal, and one end of the microcomputer (7) audio sound control level key 16 is connected, and a speaker 17 is connected to one end of the output control IC 13.

In this case, the preset button unit 14 is composed of six buttons M1-M6, for example, so that the control level signal of the audio sound can be stored in multiple stages.

In addition, an LCD panel 18 for displaying a display signal is connected to one end of the microcomputer 8.

Next, the operation and effect of the present invention having the above configuration will be described.

The present invention proceeds to the combined button signal input determination step (S2) in the initial state (S1) as shown in Figure 4 to determine whether the IC card is coupled to the main body. If it is determined during the combination button signal input determination step (S2) that the combined button signal is not input, it is returned to the previous step (S1) because the IC card is not completely coupled to the main body or the other IC card is stolen. Repeat. However, if the combined button signal is input as a result of the determination in the step (S2), it proceeds to the password matching determination step (S3) to determine whether the password embedded in the IC card and the standard password embedded in the main body. If the password does not match, it is recognized that the other IC card is stolen, and the process returns to the previous step (S1) and repeats the loop. However, as a result of judging during the password matching determination step (S3), if the password embedded in the IC card and the standard password embedded in the main body match, this is the IC card paired with the main body so that the IC card information use car audio function performing step (S4). ), The car audio function is executed using the control level information of the audio sound stored in the IC card.

That is, when the user inserts the separated IC card 2 into the inlet 7 formed on one side of the main body 4 with a predetermined force, the circuit coupling pin 6 of the IC card 2 becomes the main body. It is to be coupled to the coupling connector (3) in (4). Then, when the power button 5a of the function switches 5 installed in the main body 4 is pressed, the power of the car audio main body 4 supplies the operating power to the electric circuit of the IC card 2. In addition, if the combination button 5b is pressed after the above process, the built-in password signal from the memory means 1 of the IC card 2 passes through the coupling connector 3 of the circuit coupling pin 6 and the main body 4. It is input to the microcomputer 7. Therefore, the microcomputer 7 compares the password signal input from the IC card 2 with the reference password signal built in the main memory unit 8, and if it does not match, the connector of the main body 4 ( 3) The inserted IC card 2 is judged to be another IC card stolen or another IC card which is not combined with the main body 4 so as not to execute the car audio function. However, in the above process, if the password of the IC card 2 matches the reference password embedded in the main memory unit 8 of the main body 4, the car audio function is executed. Then, when the car audio is used, the user presses the preset button M1-M6 of the preset button 14 to match the audio sound control signal to his or her preference. For example, the multi-level audio sound control set in the button of M1-M6. Among the level values, one of the preset buttons M1-M6 corresponding to one's own preference is set. Then, the microcomputer 7 recognizes this and reads the audio sound control signal corresponding to the preset button set by the user from the memory means 1 of the IC card 2 to the main memory unit 8. Then, the microcomputer 7 executes the car audio function according to the function control level signals such as the volume, treble, bass, and loudness of the audio signal set in the corresponding preset button. For example, the microcomputer 7 inputs an international language signal to the tuner unit 10. Then, the tuner unit 10 tunes the broadcast signal set through the antenna 9 to perform high frequency amplification. The amplified broadcast signal is inputted to the information signal processing unit 11, processed to an audio signal, and then input to the audio sound control IC 12. At this time, the microcomputer 7 has an IC card according to the preset function of the preset button. According to the audio sound control level signals such as the volume (VOLUME), the treble (TRE), the bass (BASS) and the loudspeaker (LOUD) of the audio signal read from the memory means (1) to the main memory section 8 of (2). The audio sound output level of the audio sound control IC 12 is controlled. Then, the audio sound control IC 12 inputs the adjusted broadcast output signal to the output control IC 13, and accordingly the output control IC 13 amplifies the input broadcast output signal to a predetermined level. It is emitted into the vehicle through the speaker 17.

On the other hand, after performing the audio card function using the IC card information step (S4) proceeds to the audio sound multi-step storage setting determination step (S5) to determine whether a key signal for setting to store the audio sound in multiple steps. If it is determined during the audio sound multilevel storage setting determination step S5, if the audio sound multilevel storage function is not set, the process proceeds to the end step.

However, if it is determined during the step S4 that the audio sound multi-step storage function is set, the process proceeds to the detailed function key input determination step S6. For example, the volume audio control key is set. It is determined whether a key signal for setting BASS, LOUD, or the like has been input. If the detailed audio sound control key is not set as the result of the determination in the detailed function key input determination step S6, the process proceeds to the end step. However, when the detailed function key input determination step (S6) determines that the detailed function key for controlling the audio sound is entered, the setting function display step (S7) proceeds to the detailed key function key set, for example, if the TRE function key is set. The TRE will be displayed on the LCD. In addition, after the setting function display step S7, the control level value input completion determination step S8 is performed to determine whether setting of the adjustment level value of the set detailed audio sound control key is completed. As a result of judging during the input determination step (S8), if the setting of the adjustment level value of the detailed audio tone control key is not completed, the process returns to the previous step (S7) and repeats the loop. However, if the control level value of the detailed audio tone control key is set as a result of the judgment during the control level value input completion determination step (S8), for example, if the control level value of the TRE is set to 5, the preset key input is performed. Proceeding to the determination step S9, it is determined whether a preset key for storing the set adjustment level value is set. As a result of the determination during the preset key input determination step S9, if the preset key is not set, the process returns to the previous step S8 to repeat the loop. However, when the preset key for storing the audio level adjustment level is set as a result of the determination during the preset key input determination step S9, the control proceeds to the IC card storage step S10 and the control level value of the currently set audio sound. Is stored in the memory means of the IC card and the stored information is displayed on the LCD.

In addition, after the IC card storage step (S10), the process proceeds to the next detailed function setting judgment step (S11) to determine whether another fine adjustment function is set, and if it is determined that another fine adjustment function is not set, the step ends. To proceed. However, as a result of the determination during the next detailed function setting determination step S11, if the next audio detail adjustment function is set, the process returns to the detailed function key input determination step S6 to repeat the loop.

And, if the above steps are repeated, the control level of the audio sound can be stored in multiple stages.

That is, the detailed function keys such as volume, treble, bass, and loud are set in the state that the audio sound multi-stage recording function is set. One of the preset buttons M1-M6, for example, is pressed for 2 seconds or more at the volume level that the user feels the best to listen by pressing the / down switch 15 by one step. In this manner, volume levels of various levels are set. Then, the microcomputer 7 recognizes this and loads and stores the volume level control signal according to the preset button M1 into the memory means 1 of the IC card 2.

On the other hand, in the same manner as described above to set the rest of the treble (TRE), bass (BASS), the loudness (LOUD) and the like to be stored in the memory means (1) of the IC card (2).

Therefore, the user does not need to press the volume up / down switch (15) for a certain time or press the other function keys repeatedly for a long time to set the corresponding preset button only once so that the optimum car audio volume is desired. You will hear

As described above, the present invention divides the audio level control level signal into multiple levels according to the user's preferences and stores it in the IC card through the preset key, and the audio level control signal stored in the IC card when the audio sound level is adjusted. By controlling the audio sound by selecting, the user does not need to operate the keys repeatedly for a certain time to adjust the audio sound, thereby improving the convenience of use. Individual selection can always maintain the optimal audio to suit the user's preferences, thereby improving the system's optimality.

Claims (1)

In the audio sound multi-level storage setting judgment step, which determines whether a key signal for setting audio sound in multiple levels is input to the IC card-type car audio system, and the audio sound multi-level storage setting judgment step is judged If the function is set, the detailed function key input judging step of judging whether or not the set detailed audio sound control key has been entered; and if the detailed function key for adjusting audio sound is entered as a result of the judgment during this detailed function key input judging step, The control level value input completion judgment step of displaying and judging whether or not the setting of the adjustment level value of the detailed audio sound control key has been completed; If it is set, check whether the preset key to save the set adjustment level value is set. If the preset key for judging the preset key for judging and the preset key for storing the audio level adjustment level as a result of the judgment during this preset key input judging step are set, the control level value of the currently set audio tone is The IC card storage step of storing the information on the means and displaying the stored information on the LCD, and after the IC card storage step, it is determined whether another fine adjustment function has been set, and as a result, another audio detail control function has been set. In the case of returning to the detailed function key input determination step, the audio sound control method of the car audio using the IC card, characterized in that it consists of the next detailed function setting determination step of repeating the loop.

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