KR19990050134A - Volume control device and method of car audio machine - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs:

A technology related to audio equipment of a vehicle.

I. The technical problem the invention is trying to solve:

The volume level of the car audio machine is controlled so that the passenger can adjust the volume level directly.

All. The gist of the solution of the invention:

According to the present invention, the volume level of the car audio machine is adjusted to a preset volume level based on the reset key input of the occupant in the car audio device operating state or the front seat window opening in the vehicle stop state, and the set key input of the passenger Adjust the volume level to return to the previous volume level based on

la. Important uses of the invention:

Car audio

Description

Volume control device and method of car audio machine

The present invention relates to an audio device of a vehicle, and more particularly, to an apparatus and a method for controlling a volume of a car audio device.

Representative examples of carogigi include a tuner and a deck. The CDP (Compact Disc Player) is also included according to the driver's taste or the vehicle type. The volume of these cardiodes is usually intended to be adjusted directly by the occupant.

Figure 1 shows the configuration of the volume control device of a typical car audio device. Referring to FIG. 1, a car audio device includes a tuner 10, a deck 12, and a CDP 14, and the output of one audio player operated by a user is amplified by the amplifier 16. Since the amplification gain is adjusted according to the manual volume control of the user, the amplifier 16 outputs the audio adjusted by the amplifier 16 to the speaker 18.

The volume control device of the car audio device as shown in Figure 1, the occupant feels trouble because the occupant manually adjusts the volume. Also, the actual volume heard by the user will vary depending on whether the ambient noise is too loud or not at all. Even if the audio is output at the same volume level, if the ambient noise is too loud, the occupant may not hear the audio well, and if there is no noise, the audio may be loud enough to be bothered.

To solve this problem, techniques for controlling the volume of the car audio machine to adapt to the ambient noise have been proposed. For example, Korean Patent Laid-Open Publication Nos. 96-043485 and 96-043486 disclose a technique for adaptively controlling the volume of a car audio device according to the ambient noise level.

On the other hand, an object of the present invention is to provide a volume control device and method for controlling the volume level of the car audio device to be adjusted directly to the desired volume level of the occupant.

Another object of the present invention is to provide a volume control device and method for controlling a volume level of a car audio device to be directly adjusted to a preset volume level at the time of user selection.

The present invention for achieving the above object, in the volume control device of the car audio device, a volume control unit for adjusting the volume of the car audio device that is operated by a predetermined control, and the audio volume adjusted audio The volume control unit may be configured to selectively output an output speaker, keys provided to input a specific volume control request and request release, and a preset volume level based on a user's specific volume control request and request release using the keys. It is characterized by consisting of a volume control unit for controlling. The volume control unit adjusts the volume level of the car audio device to a preset volume level when the user inputs a reset key in a car audio device operation state, and adjusts the volume level to return to the previous volume level when the set key is input. .

According to another aspect of the present invention, there is provided a method for controlling a volume of a car audio device, comprising: adjusting a volume level of a car audio device to a preset volume level based on a reset key input of a passenger in a car audio device operating state; And adjusting the volume level to return to the previous volume level based on the set key input of the occupant.

In another aspect, the present invention provides a volume control method for a car audio device, comprising: determining whether a vehicle stop and a window switch are in operation during a car audio device; Adjusting the volume level of the car audio device to a preset volume level based on the state; And adjusting the volume level to return to the previous volume level based on the set key input of the occupant.

1 is a configuration diagram of a volume control device of a general car audio device,

2 is a block diagram of a volume control device for a car audio machine according to an embodiment of the present invention;

3 is a flowchart for setting an initialization volume level according to an embodiment of the present invention;

4 is a volume control flowchart according to an embodiment of the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are denoted by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

In the present invention, when the pedestrian asks the way outside the vehicle or the driver asks the pedestrian the way, the volume of the car audio device being operated is automatically adjusted to the initial value (for example, the volume of almost zero level). In addition, if the occupant needs to lower the volume of the car audio in a hurry, the touch is automatically adjusted to lower the volume to a preset initial value with one touch. After that, it automatically returns to the previous volume.

The volume control device of the car audio device according to an embodiment of the present invention for controlling the volume level of the car audio device is shown in FIG. In FIG. 2, the same reference numerals as used in FIG. 1 perform the same functions as the components. That is, the tuner 10, deck 12, CDP 14, and speaker 18 of FIG. 2 perform the same functions as the corresponding device of FIG. 1.

According to an embodiment of the present invention, the volume controller 32 adjusts the volume of the car audio machine based on the volume control of the controller 24 and outputs the volume to the speaker 18. In the present invention, it is provided to input a specific volume control request and request release. The reset key 28 is a volume control request key for adjusting the volume level of the car audio device to a preset initialization volume level, and the set key 26 is a volume control request release key for returning to the previous volume level. The front seat window switch 30 functions as a volume control request key in a specific situation according to an embodiment of the present invention. The front seat window switch 30 may be a window switch in the driver's seat and the driver's side seat, and may be implemented by only one window switch of the driver's seat and the side seat as necessary. Initialization volume setting key 31 is for setting the initialization volume desired by the user. The control unit 24 adjusts the volume level of the car audio machine to a preset initial volume level when the user inputs the reset key 28 or presses the front window switch 30 while the car audio device is in operation. Adjust the volume level to return to the level.

3 is a flowchart for setting an initialization volume level performed in the controller 24 according to an embodiment of the present invention, and FIG. 4 is a flowchart in which the controller 24 performs volume control of an audio device according to an embodiment of the present invention.

First, an operation for setting an initialization volume level performed by the controller 24 will be described in detail with reference to FIGS. 2 and 3. If the user requests the initialization volume level setting using the initialization volume setting key 31 while the car audio device is operated as in step 50 of FIG. 3, the controller 24 proceeds to step 54 to detect the level of the currently output volume. . If the user adjusts the volume currently output by using the volume key and presses the reset volume level once again, the controller 24 recognizes the input of the reset volume setting key 31 that was pressed again in step 56 as an input for the initial volume level setting completion. The process proceeds to set the last detected volume level as the initial volume level and stores it in the internal memory. The initialization volume level is required when a pedestrian asks for directions outside the vehicle or when the driver asks a pedestrian for directions, and the volume of the operating car audio device is lowered to an initial value. We will set it to near zero. Since the initializing volume level is preferably a level that is unobtrusive to passers-by, the volume level may be zero level or may be about the volume level normally heard.

After the initialization volume level is set by the process as shown in FIG. 3, the volume level control according to the embodiment of the present invention is performed as shown in FIG. 4.

2 and 4 together, when the vehicle occupant needs to switch to the initial volume level state while operating the audio device, the reset key 28 or the front window switch 30 is pressed.

If the reset key 28 is input in the operating state of the audio device, the controller 24 recognizes this in steps 100 and 102 and proceeds to step 108. In step 108, the controller 24 controls the volume adjusting unit 32 so that the current volume level output from the car audio device becomes an initialization volume level preset in the memory of the controller 24. Accordingly, the speaker 18 outputs audio sound of an initializing volume level (for example, almost zero level). Then, when the user presses the set key 26, the control unit 24 recognizes this in the determination step 110 and proceeds to step 112 to control the volume control unit 32 to return to the previous volume level. Accordingly, the speaker 18 outputs audio sound of the previous volume level.

Meanwhile, when the occupant presses the front seat window switch 30 in the operating state of the audio device (“on” state), the control unit 24 recognizes this in steps 100, 102, and 104, and proceeds to step 105 to open the front seat window. In step 106, it is determined whether the vehicle is in the stopped state. If the vehicle is in the stopped state, the process proceeds to step 108 so that the level of the audio sound currently output is set to the preset initialization volume level. Accordingly, the speaker 18 outputs audio sound of an initializing volume level (for example, almost zero level). This condition (vehicle stopping and window opening) is a situation that is taken when the occupant, in particular the driver, asks the pedestrian for directions, or when a passing pedestrian asks for the pedestrian.

Then, when the user presses the set key 26, the control unit 24 recognizes this in the determination step 110 and proceeds to step 112 to control the volume control unit 32 to return to the previous volume level. Accordingly, the speaker 18 outputs audio sound of the previous volume level.

In the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the equivalent of claims and claims.

As described above, in the present invention, the car audio volume control device is provided so that the volume level of the car audio device can be directly adjusted and returned to the initial volume level desired by the occupant.

Claims (10)

In the volume control device of the car audio machine, A volume control unit for adjusting the volume of the car audio device operated by a predetermined control; A speaker for audibly outputting the volume-adjusted audio sound; Keys provided for inputting a specific volume control request and release; And a volume controller configured to control the volume controller to selectively output a preset volume level based on a user's specific volume control request and request release using the keys. The volume control apparatus of claim 1, wherein the key for the specific volume control request is a set key and the key for releasing the specific volume control request is a reset key. The volume control apparatus of claim 1, wherein the key for the specific volume control request is a front window switch, and the key for releasing the specific volume control request is a reset key. The volume control unit of claim 2, wherein the volume control unit adjusts the volume level of the car audio device to a preset volume level when the user inputs a reset key in an operating state of the car audio device, and returns to the previous volume level when the set key is input. Volume control device characterized in that to adjust the volume level. The volume control unit of claim 3, wherein the volume control unit adjusts the volume level of the car audio device to a preset volume level when the front seat window switch is pressed in the car audio device operation state and the vehicle is stopped. A volume control device, characterized in that for adjusting the volume level to return to the previous volume level. 6. The volume control device according to any one of claims 1 to 5, wherein the preset volume level is a level close to zero. In the volume control method of the car audio device: A first step of adjusting the volume level of the car audio device to a preset volume level based on a reset key input of the occupant in the car audio device operating state; And a second process of adjusting the volume level to return to the previous volume level based on the occupant's set key input. The method of claim 7, wherein Proceeding to an initializing volume level mode by using a predetermined key in the car audio device operating state; And controlling the volume level of the car audio device in the initial volume level mode to preset the volume level in the first process. In the volume control method of the car audio device: Determining whether the vehicle stops and the front seat window switch is in operation while the car audio device is in operation; A second step of adjusting the volume level of the car audio device to a preset volume level based on the state; And a third step of adjusting the volume level to return to the previous volume level based on the set key input of the occupant. The method of claim 9, Proceeding to an initializing volume level mode by using a predetermined key in the car audio device operating state; And adjusting the volume level of the car audio device in the initial volume level mode to preset the volume level in the second process.