KR200285870Y1 - Vehicles amp - Google Patents

Abstract

The present invention relates to a vehicle amplifier that can be applied to various vehicles to automatically switch to a car stereo or DVD request state input from the user to conveniently reproduce the data through the car stereo or DVD.

To this end, the present invention has a function key for setting each function of a car stereo or DVD, and an input unit for receiving a request signal for playing a car stereo or DVD from the user through the function key; A detection unit detecting whether one of a stereo or a DVD is in response to a request signal received through the input unit; A switching unit for switching to a car stereo when the request signal detected through the detection unit is a car stereo request signal, and switching to a DVD when the request signal detected through the detection unit is a DVD request signal; A transmission unit which transmits a reproduction signal to the outside when the reproduction is performed in a stereo or DVD state switched through the switching unit; An amplifier for amplifying a reproduction signal transmitted through the transmission unit to a predetermined size; A digital signal stabilization circuit unit for stabilizing the digital signal after processing the reproduced signal amplified by a predetermined size through the amplification unit; And an output unit for outputting a reproduction signal output through the digital signal stabilization circuit unit to a plurality of speakers.

Description

Car Amplifiers {VEHICLES AMP}

The present invention relates to a vehicle amplifier, and more particularly, it is applied to various vehicles to automatically switch according to the status request for reproduction of the stereo or DVD input from the user so that the data can be reproduced through the stereo or DVD It relates to a car amplifier.

In general, volume devices used in vehicles are adapted to be manually adjusted in volume. That is, the vehicle volume device is simply operated by a user who feels the necessity of volume control to output the volume through a speaker located inside the vehicle.

However, if the driver driving the car wants to switch from the stereo to the DVD while driving, the risk of an accident may occur because the stereo must be stopped and the DVD must be played or the DVD must be stopped and then the stereo can be operated. In addition, various inconveniences that occur after at least a few operating processes are occurring.

In addition, in the case of reproducing stereo sound using a conventional stereo speaker, if two speakers are dropped and placed in front of each other to make a sound through the speaker, a person may feel that there is a sound source at some point between the two speakers. If the volume is equal, the sound source is in the middle between the two speakers, and the larger the sound is turned to one side, the more the sound source is felt to exist.

Therefore, since the listeners located at the same distance from the stereo speakers play simultaneously through the left front and rear speakers and the right front and rear speakers, no one can feel left and right balanced stereo sounds, and it is difficult to hear realistic sounds.

The present invention has been made to solve the above problems, its purpose is to automatically switch according to the status request for playback to the stereo or DVD received from the user to conveniently play the data via the car stereo or DVD without additional operation To provide a car amplifier that can be made.

1 is a block diagram for explaining the overall configuration of a vehicle amplifier according to an embodiment of the present invention,

2 is a circuit diagram illustrating an input unit, a detector, a switch, and a transfer unit of FIG. 1;

3 is a circuit diagram illustrating an amplifier of FIG. 1;

4 is a circuit diagram showing a digital signal stabilization circuit of FIG.

FIG. 5 is a circuit diagram illustrating an output unit of FIG. 1. FIG.

<Explanation of symbols for the main parts of the drawings>

5: power supply 10: input

20: detection unit 30: switching unit

40: transfer unit 50: amplification unit

60: digital signal stabilization circuit section 70: output section

A vehicle amplifier according to an aspect of the present invention for achieving the above object, has a function key for setting each function of the car stereo or DVD, and receives a request signal for playing the car stereo or DVD through the function key from the user An input unit receiving an input; A detection unit detecting whether one of a stereo or a DVD is in response to a request signal received through the input unit; A switching unit for switching to a car stereo when the request signal detected through the detection unit is a car stereo request signal, and switching to a DVD when the request signal detected through the detection unit is a DVD request signal; A transmission unit which transmits a reproduction signal to the outside when the reproduction is performed in a stereo or DVD state switched through the switching unit; An amplifier for amplifying a reproduction signal transmitted through the transmission unit to a predetermined size; A digital signal stabilization circuit unit for stabilizing the digital signal after processing the reproduced signal amplified by a predetermined size through the amplification unit; And an output unit for outputting a reproduction signal output through the digital signal stabilization circuit unit to a plurality of speakers.

Preferably, the switching unit includes a first relay, a second relay, and a third relay, and drives the first relay, the second relay, and the third relay according to the request state of the car stereo or DVD detected through the detection unit. It is possible to switch to the stereo or DVD playback state, but when the user is requested to play the stereo during DVD playback, the DVD is stopped and then automatically switched to the stereo so that the data can be conveniently played back.

More preferably, the output unit drives the first relay, the second relay, and the third relay of the switching unit in response to a request signal to the stereo or DVD received through the input unit to output the reproduction signal of the stereo or DVD in six channels. It is characterized by a sense of realistic music or movies.

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

The present invention below will be described as a preferred embodiment of a vehicle amplifier that can be applied to various vehicles to reproduce data via a car stereo or DVD that is automatically switched in accordance with the input status of the stereo or DVD request from the user, The technical idea of the invention is not limited to this, but can be variously modified and implemented by those skilled in the art.

A vehicle amplifier according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5 as follows.

1 is a block diagram illustrating an overall configuration of a vehicle amplifier according to an embodiment of the present invention, FIG. 2 is a circuit diagram illustrating an input unit, a detector, a switch, and a transmitter of FIG. 1, and FIG. 3 is an amplification of FIG. 1. 4 is a circuit diagram illustrating the digital signal stabilization circuit of FIG. 1, and FIG. 5 is a circuit diagram illustrating the output unit of FIG. 1.

The car amplifier of the present invention includes a power supply unit 5 for supplying power to each unit, an input unit 10 for receiving a car stereo or DVD playback request signal from a user, and a request signal received through the input unit 10 is a car stereo. Or a detection unit 20 for detecting whether one of the DVDs is in a request state, a switching unit 30 for switching to a state detected by the detection unit 20, and a car stereo converted through the switching unit 30. Alternatively, when playback is performed in a DVD state, a transmission unit 40 for transmitting the reproduced signal, an amplification unit 50 for amplifying the reproduction signal transmitted from the transmission unit 40 to a predetermined size, and amplification to a predetermined size And a digital signal stabilization circuit unit 50 for stabilizing the reproduced signal after processing the signal, and an output unit 50 for outputting the reproduced signal processed through the stabilization circuit unit 50 to a speaker or the like.

Referring to Figure 1 in more detail with respect to the vehicle amplifier according to an embodiment of the present invention, the input unit 10 has a function key for setting each function of the car stereo or DVD, the function key from the user (E.g., stop, pause, fast forward, rewind, play, etc.) inputs the status information of the car stereo or DVD to be played back.

The detection unit 20 detects whether the request signal received through the input unit 10 is a request state of either a stereo or a DVD.

Then, the switching unit 30 is composed of the first relay 31, the second relay 32, the third relay 33, and the request state of the car stereo or DVD detected through the detection unit 20 Accordingly, the first relay 31, the second relay 32, and the third relay 33 are driven to switch to the stereo or DVD request state, and the DVD is stopped when the user receives a stereo playback request signal from the user during DVD playback. It will then switch automatically to playback to the stereo.

The transfer unit 40 serves to transfer the playback signal output to any one of the stereo or DVD switched through the switching unit 30 to the amplifying unit 40.

The input unit 10, the detection unit 20, the switching unit 30, and the transmission unit 40 will be described in more detail with reference to the circuit diagram of FIG. 2. First, a request signal for reproducing from a user to a stereo is provided. When the input signal is input, the signal requested to the 7th terminal of the connector W02 is connected to the 15th terminal of the connector CON03 according to the input stereo request signal, and the signal requested to the 5th terminal of the connector W02 is a connector. Connected to terminal 13 of CON03, the signal requested to terminal 3 of connector W02 is connected to terminal 12 of connector CON03, and the signal requested to terminal 1 of connector W02 is a connector. It is connected to No.10 terminal of (CON03).

Then, the car stereo request signal is applied by being connected with the 15th terminal, the 13th terminal, the 12th terminal, and the 10th terminal of the connector W01 connected to the detection unit 20 and the switching unit 30.

Thereafter, the car stereo request signal output from the 15th terminal of the connector W01 is outputted by branching to the first relay 31 and the second relay 32, and the car stereo request output from the 13th terminal of the connector W01. The signal is output by branching to the first relay 31 and the second relay 32, and the car stereo request signal output from the 12th terminal of the connector W01 is output to the third relay 33, and the connector W01. The car stereo request signal output to terminal 10 of the branch is output to the third relay 33 and the detection unit 40.

When the detection unit 20 connects the signal output from the first capacitor C1 to the base terminal of the first transistor T1 via the second resistor R2, the first transistor T1 is turned on to conduct the fifth resistor. The stereo request signal input to the first terminal IN of the signal level sensor system U1 is detected via R5 and the third capacitor C3.

When the signal level sensor system U1 detects a signal input from the DVD, the signal level sensor system U1 outputs the detected signal to the seventh terminal OUT2 and the sixth terminal OUT1, and the output of the sixth terminal is the twelfth resistor ( R12) and the first zener diode Z1, and the output of terminal 7 is connected to the base terminal of the third transistor T3 through the eleventh resistor R11.

The first zener diode Z1 operates when a surge voltage other than a predetermined voltage flows to protect the circuit.

The switching unit 30 including the first relay 31, the second relay 32, and the third relay 33 through the collector terminal when the third transistor is turned on according to the output signal connected to the third transistor T3. When the detected state signal is outputted, the switching unit 30 switches to the state output from the detection unit 10, and when the reproduction is performed with the switched stereo, the reproduction signal is transmitted through the switching unit 30 ( 40).

Terminal 2 of the signal level sensor system U1 is gain control, and terminal 3 is connected to the fourth capacitor C4 on one side and grounded on the other side. Terminal 5 has one side connected to a seventh capacitor C7 and the other side grounded.

The eighth terminal of the signal level sensor system U1 is connected to one side of the fourteenth resistor, and the other side thereof is connected to the switching unit 30 to apply a voltage to the switching unit 30.

Reference numerals R2 and R3 denote second and third resistors, and C5, C6 and C9 denote fifth, sixth and ninth capacitors.

On the other hand, when a request signal for playback from the user to the DVD is input, the signal requested to the 11th terminal of the connector W01 according to the input DVD request signal is connected to the 9th terminal of the connector CON03, the connector ( The signal requested to the 9th terminal of W01) is connected to the 7th terminal of the connector CON03, the signal requested to the 7th terminal of the connector W01 is connected to the 6th terminal of the connector CON03, and the connector ( The signal requested to terminal 5 of W01 is connected to terminal 4 of connector CON03, the signal requested to terminal 3 of connector W01 is connected to terminal 3 of connector CON03, and the connector ( The signal requested to terminal 1 of W01) is connected to terminal 1. Terminals 14, 11, 8, 5 and 2 of the remaining connector (CON03) are grounded.

Then, the DVD request signal is connected to terminal 9 or terminal 7 or terminal 6 or terminal 4 or terminal 3 or terminal 1 of the connector (W01) connected to the detection unit 20 and the switching unit 30 is Is approved.

Thereafter, the DVD request signal output from the 9th terminal of the connector W01 is output to the first relay 31, and the DVD request signal output from the 7th terminal of the connector W01 to the first relay 31. The DVD request signal output from the sixth terminal of the connector W01 is output to the second relay 32, and the DVD request signal output to the fourth terminal of the connector W01 is output to the second relay 32. The DVD request signal output to the third terminal of the connector W01 is output to the third relay 33, and the DVD request signal output to the first terminal of the connector W01 is output to the third relay 33. do.

When the detection unit 20 connects the signal output from the second capacitor C2 to the base terminal of the second transistor T2 via the sixth resistor R6, the second transistor T2 is turned on to conduct the tenth resistor. When the DVD request signal is input to the first terminal IN of the signal level sensor system U1 via the R10 and the third capacitor C3, the input signal is detected.

When the signal level sensor system U1 detects a signal input from the DVD, the signal level sensor system U1 outputs the detected signal to the seventh terminal OUT2 and the sixth terminal OUT1, and the output of the sixth terminal is the twelfth resistor ( R12) and the first zener diode Z1, and the output of terminal 7 is connected to the base terminal of the third transistor T3 through the eleventh resistor R11.

The switching unit 30 including the first relay 31, the second relay 32, and the third relay 33 through the collector terminal when the third transistor is turned on according to the output signal connected to the third transistor T3. When the detected state signal is outputted, the switching unit 30 switches to the output state from the detection unit 10, and when playback is performed with the switched DVD, the playback signal is transmitted through the switching unit 30. 40).

Reference numerals R7 and R8 are the seventh and eighth resistors.

On the other hand, the switching unit 30 is switched to match the output state to be played in the car stereo or DVD corresponding to the status signal output through the seventh terminal (OUT2) of the sensor level detection system (U1), The reproduction unit 40 outputs the reproduction signal.

The amplification unit 50 amplifies the reproduction signal detected by the transmission unit 40 to a predetermined size, and outputs the reproduction signal amplified to the predetermined size to the digital signal stabilization circuit unit 60. A detailed circuit diagram of the amplifier 30 is shown in FIG. 3.

The digital signal stabilization circuit unit 60 performs a signal processing on the reproduction signal output through the amplification unit 50, stabilizes the digital signal processed by the signal, and outputs it to the output unit 70. A detailed circuit diagram of the digital signal stabilization circuit unit 60 is as shown in FIG.

The output unit 70 may output a reproduction signal output through the digital signal stabilization circuit unit 60 to 6 channels to hear a realistic sound. Due to the plurality of delays configured in the output unit 70, noise generated when converting from DVD to car stereo or converting from car stereo to DVD is eliminated.

A detailed circuit diagram of the output unit 70 is as shown in FIG.

Referring to the overall operation of the vehicle amplifier according to the present invention having the configuration as described above, the input unit 10 receives a reproduction request signal for the car stereo or DVD mounted on the vehicle.

Thereafter, the detection unit 20 detects a state signal corresponding to the received request signal, outputs the detected state signal to the switch unit 30, and configures the first relay 31 configured in the switch unit 30. ), It is switched to the state detected through the second relay 32, the second relay 33.

Thus, a digital signal for reproducing the converted state signal is output to the amplifying unit 50 through the transfer unit 40 to amplify the reproduced signal to a predetermined size, and then converts the amplified predetermined size signal into a digital signal. Stabilization in the stabilization circuit unit 60 is output to the output unit 70.

Due to a plurality of delays configured in the output unit 70, a noise generated when the DVD is converted to the stereo or the stereo when the DVD is converted to the DVD is removed. Automatically switch to DVD can be played conveniently.

If a DVD playback request signal is input from the user while playing the stereo, the stereo playback is automatically stopped, and then the DVD is conveniently played back.

By doing so, it is automatically switched according to the playback request to the stereo or DVD received from the user, so that the data can be conveniently reproduced through the stereo or DVD.

The present invention described above is possible to those skilled in the art to which the present invention belongs, various substitutions, modifications and changes can be made within the scope without departing from the spirit of the present invention and the above-described embodiments and attached It is not limited to the drawing.

As described above, the present invention has an effect of automatically switching data in response to a playback request to a stereo or a DVD input from a user so that data can be conveniently reproduced through a stereo or a DVD without a separate operation.

In addition, the present invention has the effect that you can feel the realistic music or movie by outputting the playback signal to the six channels when playing on the car stereo or DVD.

Claims (3)

An input unit (10) having function keys for setting respective functions of a car stereo or a DVD and receiving a request signal for playing a car stereo or a DVD from the user through the function keys; A detection unit 20 for detecting whether a request state of a car stereo or a DVD is in response to a request signal received through the input unit; A switching unit 30 for switching to a stereo if the request signal detected through the detector is a car stereo request signal, and switching to DVD if the request signal detected through the detection unit is a DVD request signal; A transmission unit 40 which transmits a reproduction signal to the outside when reproduction is performed in a car stereo or DVD state switched through the switching unit; An amplification unit 50 for amplifying a reproduction signal transmitted through the transmission unit to a predetermined size; A digital signal stabilization circuit unit 60 for stabilizing the digital signal after processing the reproduced signal amplified to a predetermined size through the amplification unit; And And an output unit (70) for outputting a reproduction signal output through the digital signal stabilization circuit unit to a plurality of speakers. The method of claim 1, wherein the switching unit, It consists of a first relay, a second relay, and a third relay, and drives the first relay, the second relay, and the third relay according to the request state of the car stereo or the DVD detected by the detection unit to the car stereo or DVD playback state. A switch for a car, characterized in that, if a car stereo playback is requested from the user during DVD playback, the DVD playback is stopped and then automatically switched to the car stereo so that the data can be conveniently played back. The method of claim 2, wherein the output unit, In response to the request signal to the stereo or DVD received through the input unit, by driving the first relay, the second relay, the third relay of the switching unit to output the playback signal of the stereo or DVD to 6 channels to feel the realistic music or movie Car amplifier characterized in that.