KR100256536B1 - Audio/video system for a car - Google Patents

Abstract

PURPOSE: An audio/video system for an automobile is provided to supply images of TV or a VCR(Video Cassette Recorder) as well as an AM/FM radio function, a cassette tape function, and an audio function of a CD. CONSTITUTION: An audio/video converter(21) converts an electric wave of an antenna(10) and data of a cassette tape and a CD into frequencies which people are capable of watching and listening to, and outputs the frequencies. An operation unit(22) converts input states of various selection switches into electric signals, and outputs the electric signals. A remote control receiver(23) receives a signal from a remote controller, and converts the received signal into an electric signal to output the electric signal. A TFT(Thin Film Transistor) display unit(25) displays the operation states of the operation unit(22), the remote control receiver(23), and the audio/video converter(21) to a user. A micro computer(24) takes output sides of the operation unit(22) and the receiver(23) as input sides, and outputs a control signal to the audio/video converter(21) according to the input states, then outputs a constant control signal to the TFT display unit(25), to display an input state of the user and a controlled state of the audio/video converter(21).

Description

Automotive Audio / Video Systems

The present invention relates to an automotive audio / video system, and more particularly, to an audio / video system capable of providing an image of a television and a video as well as an audio function of an AM / FM radio, a cassette tape, and a compact disc in an automobile. The present invention relates to a car audio / video system capable of improving the convenience of automobile life.

Listening to music inside a car can help you to get rid of boredom while driving and to stabilize the driver's mind. Already around 1925, radio receivers were installed in automobiles. Since 1950, the same audio system technology has been developed in automobiles in line with the spread of acoustic media such as home radios, cassettes, and compact discs. This can be realized.

The general configuration of such a conventional car audio system is shown in FIG.

As shown in the drawing, a general configuration of a conventional automotive audio system includes an antenna 10 'installed outside the vehicle to receive necessary radio waves, and audible data of radio waves, cassette tapes and compact discs received from the antenna 10'. An audible frequency converter 20 'consisting of an AM / FM tuner, a cassette deck, a compact deck, a source selector, and the like, and the audible frequency according to the acoustic characteristics of the vehicle and the taste of the listener to convert the frequency into a frequency. Acoustic wave correction section 30 'composed of a filter or a gain control circuit that passes only a specific frequency region to make a good audible range correction strong and weak, and an amplification section that amplifies the analog voltage of the audible frequency with power. 40 'and a speaker 50' that ultimately determines the vehicle interior acoustic performance.

The operation of the automotive audio system of the above-described configuration is that when the driver operates a switch (not shown in the configuration diagram of FIG. 1) to receive AM or FM, an audible frequency conversion unit is generated in the radio wave received by the antenna 10 '. 20 '), the AM / FM tuner unit selects (tunes) only a predetermined target frequency and outputs the audio frequency separated from the carrier wave. On the other hand, when the driver operates the switch to listen to the cassette and the compact disc, the cassette deck and the compact disc deck of the audible frequency converter 20 'convert the recorded data of the tape and the compact disc into an audible frequency and output the audio frequency. Then, with the output signal, the sound wave correction unit 30 'makes the most appropriate audible range correction by outputting this frequency band according to the sound wave characteristics of the vehicle and the preference of the person to be listened to. After the signal is amplified by the amplifier 40 'again, the speaker 50' is generally operated, so that the audio system is operated.

However, such a conventional audio system includes a function of playing a cassette and a compact disc in addition to a radio reception function. However, the TV and video functions necessary for consumers in the multimedia era are not realized, thereby not providing the real convenience of the automobile life. And limitations.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an audio / video system capable of providing images of television and video as well as audio functions of AM / FM radio, cassette tape, and compact disc in an automobile. To improve the convenience of car life.

1 is a block diagram showing the configuration of a conventional car audio system.

2 is a block diagram showing the configuration of an audio / video system according to the present invention.

3 is a front view showing the appearance of an audio / video system according to the present invention.

Fig. 4 is a front view showing the appearance when the TFT display portion of the audio / video system according to the present invention is opened.

* Explanation of symbols for main parts of the drawings

10: antenna 20: audio / video system appearance

21: visible blue converter 22: operation unit

23: remote control receiver 24: micom

25 TFT type display part 30 DSP and amplifier part

35: speaker 40: video adapter

50: Compact Disc Changer

In order to achieve the above object, the audio / video system according to the present invention is installed outside of a vehicle and enables a person to listen to and watch radio waves received from an antenna for receiving broadcast radio waves of a broadcasting station and data of cassette tapes and compact discs. Visible blue converting unit for converting and outputting the frequency, an operation unit for converting the power supply and input state of the various selection switches of the user into an electrical signal, and outputting the signal from the remote controller and converting it into an electrical signal The remote control receiving unit, a TFT display unit for displaying to the user the various operating states of the operation unit, the remote control receiving unit, and the operating state of the visible and blue converting unit, and the output side of the operation unit and the receiving unit as input sides, Outputs a control signal to the visible and blue converter, and It characterized by comprising, including the microprocessor and outputting a predetermined control signal to the TFT display unit to display the converted portion control.

DETAILED DESCRIPTION Hereinafter, embodiments of an audio / video system according to the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

2 is a block diagram showing the electrical circuit configuration of an audio / video system according to the present invention.

As shown in the figure, the electrical circuit configuration of the audio / video system according to the present invention includes various kinds of radio waves and cassette tapes and compact disc data received from the antenna 10 installed outside the vehicle to receive broadcast radio waves of broadcasting stations. The visible and blue converter 21 is connected to the antenna 10 so as to convert the frequency into a frequency that can be heard and watched by a person. The antenna 10 is subdivided into a plurality of radio and television antennas and the television antenna is connected to the television tuner of the visible and blue converting section 21, and the radio antenna is connected to the FM and AM tuners through the FM diversity unit. It is. The FM diversity unit selects an output signal of the strongest antenna and inputs the signal to the AM and FM tuner. Cassette tapes and compact discs, on the other hand, are located inside cassette decks and compact disc decks so that data can be read, and the cassette decks and compact disc decks also output audible frequencies.

In addition, the audio signal of the TV tuner, FM tuner, AM tuner, cassette deck, and compact disc deck of the visual conversion unit 21 is connected to a digital signal processor (DSP) and an amplification unit 30 so that the user can listen best. The speaker 35 is connected to the DSP and the amplification unit 30 again to output the actual audio signal. Here, the DSP and amplification unit 30 is a kind of sound wave controller, and serves to make an output signal of the speaker 35 into an atmosphere of a concert hall, a life house, and the like.

On the other hand, various input states of the user, such as power supply, AM / FM selection, cassette / compact disc selection, TV channel selection, AM / FM frequency selection, volume, and the most optimal speaker output signal operation using DSP The operation unit 22 is provided to convert the electrical signal and output the remote control unit. When the operation state is performed by a remote controller (not shown), the remote control receiver 23 is connected to receive the remote control signal, and the predetermined operation is performed. An electrical signal is output. Here, the remote controller for outputting a signal to the remote control receiver 23 is installed on the steering wheel of the vehicle and the rear arm rest of the rear seat to enable remote control.

By processing all signals from the operation unit 22 and the remote control receiving unit 23, the operation unit (to control the television tuner, FM tuner, AM tuner, cassette deck, compact disc deck of the visual conversion unit 21) 22) and the input side of the microcomputer 24 are connected to the output side of the remote control receiver 23. The microcomputer 24 also has a TFT-type display unit at the output end thereof to display the state of the operation unit 22 and the remote control receiving unit 23 to the user, and to display the operation state of the visible and blue conversion unit 21 to the user. 25 input unit is connected to output a constant electrical signal to the TFT type display section 25, and the TFT type display section 25 outputs the video signal when the user selects the TV tuner. The signal output side is also connected. In addition, the TFT-type display unit 25 is connected to the video adapter 40 so as to display a video signal from an external video device to the user and when the user operates the operation unit 22 to replace the compact disc, the micom The compact disc changer 50 is connected so that the compact disc can be replaced by control of (24). Meanwhile, reference numeral 20 in the drawings bundles components that are actually mounted in the audio / video system to be described below.

The operation of the audio / video system according to the present invention having such a configuration will be described below.

First, when the user turns on the power using the operation unit 22 or the remote controller, the power is applied to the microcomputer 24 and the blue-blue conversion unit 21 to prepare for operation. Herein, it is well known that the microcomputer 24 stores a program having a predetermined control order in a ROM in advance, and that various reference values are embedded in the ROM in advance. Will be.

Next, if the user selects the FM selection switch and the frequency of the operation unit 22 because they want to listen to the FM broadcast, the microcomputer 24 outputs a control signal to the FM tuner of the visual conversion unit 21 so that the FM tuner is an antenna ( 10) receives a broadcast wave and outputs an audio signal of a predetermined broadcast channel through the DSP, the amplifier 30, and the speaker 35, and the operation state of the user's control unit 22 and the visual and blue conversion unit 21. FM tuner status light is displayed to the user by using the TFT-type display unit 25. When the user selects the television of the operation unit 22, the microcomputer 24 operates the television tuner to output the audio signal to the speaker 35 and the image signal to the TFT type display unit 25. In addition, according to the operation state of the user's operation unit 22 and the remote controller, the microcomputer 24 outputs a video image signal using the AM tuner, the cassette deck, the compact disc, the video adapter 40, the compact disc changer 50, and the like. This is achieved by the control of the microcomputer 24.

3 is a front view showing the appearance of an audio / video system according to the present invention.

As shown, the exterior 20 of the audio / video system according to the present invention has a rectangular box shape, in which electrical circuit components are embedded, and at the center of one surface thereof, an operation state of a variety of operation units and a visible and blue conversion unit. A TFT type display portion 25 for displaying a status light is provided in the center portion, and an operation portion composed of a plurality of operation switches is provided on the left and right sides thereof. On the right side of the drawing of the TFT type display section 25, a power switch, an AM / FM selection switch (AM / FM), a cassette tape selection switch (TAPE), a compact disc selection switch (DISC), a television selection switch (TV1) / 2), a broadcast frequency search switch (TUNE TRACK), a volume control switch (VOL) and a remote control receiver (RC) are formed in a line, and the DSP button (DSP) for the user to adjust the atmosphere of the concert hall, life house, etc. ), A compact disc changer (CDC) button, and an automatic frequency search button (ASM) are formed. On the other hand, on the left side of the TFT-type display unit 25, the open button OPEN allows the TFT-type display unit 25 to be opened forward with the rotation axis, and the tilt for adjusting the angle of the TFT-type display unit 25. And a push button PUSH and an image quality and sound quality adjustment button.

On the other hand, Fig. 4 is a front view showing the appearance when the TFT type display section 25 of the audio / video system according to the present invention is opened. As shown in Fig. 4, a compact disc deck (CD) and a cassette deck are provided on the back of the TFT type display section. It can be seen that (CSD) is formed. In such an audio / video system, operation of the compact disc deck and the cassette deck is performed by opening the TFT type display unit 25 using the open switch (OPEN) and inserting the desired compact disc or cassette tape into the deck as shown in the figure. It is trying to be.

As described above, although the present invention has been described with reference to the above embodiments, various modifications may be made by those skilled in the art to which the present invention pertains.

Therefore, the audio / video system according to the present invention is equipped with an audio / video system capable of providing images of television and video as well as audio functions of AM / FM radio, cassette tape, and compact disk in the interior of a car, thereby providing convenience in automobile life. It can be improved.

Claims (6)

Visible blue converting unit installed outside the vehicle to convert the radio wave received from the antenna receiving the radio wave of the broadcasting station and the data of the cassette tape and compact disc into a frequency that can be heard and watched by humans, and power supply and user An operation unit for converting and outputting an input state of various selection switches to an electrical signal, a remote control receiver for receiving a signal from a remote controller, converting the signal into an electric signal, and outputting the electric signal, and various operation states of the operation unit and a remote control receiver; A TFT (Thin Film Transistor) display unit which displays the operation state of the visible and blue conversion unit to the user, and outputs a control signal to the visible and blue conversion unit according to various input states selected by the user with the output side of the operation unit and the receiving unit as an input side, The input state of the user and the control state of the Display car audio / video system, characterized in that formed, including microprocessor and outputting a predetermined control signal to the TFT display in order to. The audio / video system for a car according to claim 1, wherein the visual conversion unit comprises a television tuner, an FM tuner, an AM tuner, a cassette deck, and a compact disc deck. The audio / video system according to any one of claims 1 to 3, wherein the television tuner of the visible and blue conversion unit is connected to a TFT display unit to transmit a video signal to the TFT. The automotive audio / video system of claim 1, wherein a video adapter is further connected to the TFT display to receive an image signal from an external video device. The audio / video system as set forth in claim 1, wherein the visible and blue converter is connected to a digital signal processor (DSP) and an amplifier and a speaker is connected to the DSP and the amplifier. The audio / video system according to claim 1, wherein the microcom is further connected with a compact disc changer for controlling a compact disc replacement of the compact disc deck according to a signal of a user's operation unit and a remote receiver.

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