KR20040088673A - A car-audio apparatus of attachable and detachable front panel - Google Patents

Abstract

PURPOSE: A front panel detachable car-audio device is provided to add various functions to a front panel portion comprised to be separated to prevent a car-audio from being robbed. CONSTITUTION: A microphone(215) inputs a voice signal and other sound, and converts into an electrical audio signal. A voice capture/compression processor(220) samples the audio input signal, and compresses the sampled signal. A voice reproduction/restoration processor(225) restores/reproduces the compressed digital audio data. A voice recording data storage(230) stores the compressed digital audio data. An earphone amplifier(260) amplifies an audio signal outputted from the voice reproduction/restoration processor(225) and a D/A converter(255). An earphone jack(265) electrically connects with an outer earphone. A front controller(280) controls a key input portion(270) and a display(275) by electrically interworking with a main controller(110) of a body portion(100), and overall controls each portion of a front portion(200).

Description

Front panel removable car audio system {A CAR-AUDIO APPARATUS OF ATTACHABLE AND DETACHABLE FRONT PANEL}

The present invention relates to a front panel detachable car audio device, and in particular, by adding various functions to the front panel that can be separated to prevent theft of conventional car audio, the front panel can be used more effectively. A removable panel car audio device.

In general, the removable car audio system is configured to separate the front panel, which is an operation unit of the main body, so that the driver parks the vehicle and then removes the front panel from the main body of the car audio system. By detaching and carrying, it is possible to prevent theft of the car audio system.

1 is an exploded perspective view illustrating a conventional front panel detachable car audio device, and FIG. 2 is a block diagram schematically illustrating an internal system configuration of a conventional front panel detachable car audio device.

1 and 2, the conventional front panel detachable car audio device is composed of a main body portion 10 that largely forms a body, and a front portion 20 detachably coupled to the main body portion 10. It is.

In the above-described configuration, the main body portion 10 includes a main control portion 11 for controlling the system as a whole; A radio module unit 12 for receiving AM / FM radio broadcasting; A cassette module unit 13 for operating the cassette tape; A disk module unit 14 for operating a compact disk (CD); An amplifying unit 15 for amplifying each sound signal according to the selection of the radio module unit 12, the cassette module unit 13, and the disc module unit 14; It is configured to include a main connector portion 16 for electrical connection with the front portion (20).

The front unit 20 includes a key input unit 23 provided with a plurality of keys 21 to enable operation of various functions; A display unit 24 for displaying the selected broadcast channel on the display window 22; A front control unit 25 for controlling the key input unit 23 and the display unit 24; It is comprised including the front connector part 26 for connection with the main-body part 10. As shown in FIG.

However, the conventional front panel detachable car audio device as described above has been carried with the front part 20, that is, the front panel removed to prevent theft of the car audio device. There is a problem that the value of the product may be lowered because it does not have any special function other than anti-theft protection.

The present invention has been made to solve the above-described problems, the object of the present invention is to back up a variety of data, voice recording / playback and music files (MP3) in the front panel provided to be separated for theft prevention of conventional car audio By adding various functions such as listening, a front panel detachable car audio device has been provided which makes it possible to use a separate front panel unit more usefully.

In order to achieve the above object, the front panel detachable car audio device of the present invention comprises: a main body of car audio, which is installed inside the vehicle, for listening to AM / FM radio broadcasting and playing cassette tapes or compact discs; A front panel detachable car audio device comprising a front part detachably provided in the main body part and including a key input part for channel selection and other desired operations, the front part comprising: a microphone for receiving an external voice and converting the external voice into an audio signal; A voice capture / compression processor configured to sample and compress the audio signal received from the microphone; A voice reproducing / recovery processing unit for restoring / reproducing the audio data compressed from the voice capture / compression processing unit; A voice recording data storage unit for storing the compressed audio data from the voice capture / compression processor; An earphone amplifying unit for amplifying the audio signal restored / reproduced from the voice reproducing / restoring processing unit; Storing the voice recording data stored in the voice recording data storage unit, the data being sampled and compressed from the voice capturing / compression processing unit according to an earphone jack for electrically connecting an external earphone and a key operation signal of the key input unit. Characterized in that it comprises a front control unit for controlling to output to the voice reproduction / restoration processing unit.

In the above-described configuration, the voice recording data storage unit is preferably made of a flash memory.

Preferably, the front portion further includes a front USB port portion for electrically connecting to a USB port of an external personal computer and a backup data storage portion for backing up and storing various data stored in advance in the personal computer through the front USB port portion. Including, but the front control unit, to control the backup data storage unit to store the various data provided from the personal computer via the front USB port.

Preferably, the backup data storage unit is composed of a flash memory.

Preferably, the front unit includes a music data storage unit for storing music data stored in advance in the personal computer through the front USB port unit; A decoding unit for restoring the encoded music data stored in the music data storage unit to an original state, and a D / A converter for converting the digital data restored by the decoding unit into an audio signal and outputting the audio signal to the earphone amplifier unit; The front control unit stores the music data received from the personal computer through the front USB port unit in the music data storage unit, and the music data stored in the music data storage unit in accordance with a key operation signal of the key input unit. It outputs to the decoding unit for restoring to the original state and controls so that the user can listen to the music data through an external earphone.

Preferably, the music data consists of MP3 files.

Preferably, the music data storage unit is composed of a flash memory.

1 is an exploded perspective view illustrating a conventional front panel detachable car audio device;

2 is a block diagram schematically showing the internal system configuration of a conventional front panel removable car audio device;

3 is a block diagram schematically illustrating a front panel detachable car audio device according to an embodiment of the present invention.

*** Explanation of symbols on main parts of drawing ***

100: main body portion, 110: main control portion,

120: radio module unit, 130: cassette module unit,

140: disk module unit, 150: amplifying unit,

160: main connector portion, 200: front portion,

210: front connector portion, 215: microphone,

220: voice capture / compression processing unit, 225: voice playback / restoration processing unit,

230: voice recording data storage, 235: front USB port,

240: backup data storage unit, 245: music data storage unit,

250: decoding unit, 255: D / A conversion unit,

260: earphone amplifier, 265: earphone jack,

270: key input unit, 275: display unit,

280: front control unit, 285: power supply unit

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. This embodiment is not intended to limit the scope of the invention, but is presented by way of example only.

3 is a block diagram schematically illustrating a front panel detachable car audio device according to an embodiment of the present invention.

As shown in FIG. 3, the front panel detachable car audio device according to the present invention includes a main body 100 that largely forms a body, and a front part 200 that is detachably coupled to the main body 100. have.

In the above-described configuration, the main body unit 100 includes a main control unit 110 for controlling the system as a whole; A radio module unit 120 for receiving AM / FM radio broadcasting; A cassette module unit 130 for operating the cassette tape; A disk module unit 140 for operating a compact disc (CD); An amplification unit 150 for amplifying each sound signal according to the selection of the radio module unit 120, the cassette module unit 130, and the disc module unit 140; It is configured to include a main connector 160 for electrical connection with the front portion (200).

The front part 200 includes a front connector part 210 for electrical connection with the main connector part 160; A microphone 215 for receiving a voice signal and other sounds and converting the same into an electrical audio signal; A voice capture / compression processor 220 for sampling and compressing an audio input signal provided from the microphone 215; A voice reproducing / restoring processing unit 225 for reconstructing / reproducing the digital audio data compressed from the voice capturing / compressing unit 220; A voice recording data storage unit 230 for storing the digital audio data compressed from the voice capture / compression processing unit 220; A front USB port portion 235 for electrically connecting to a universal serial bus (USB) port of an external personal computer (PC); A backup data storage unit 240 for backing up and storing various data previously stored in the personal computer (PC) through the front USB port unit 235; A music data storage unit 245 for storing music data (for example, MP3 files, etc.) stored in advance in the personal computer (PC) through the front USB port unit 235; A decoding unit 250 for restoring the encoded music data stored in the music data storage unit 245 to its original state; A D / A converter 255 for converting the digital data restored by the decoder 250 into an audio signal; An earphone amplifying unit 260 for amplifying audio signals output from the voice reproducing / restoring unit 225 and the D / A converter 255; An earphone jack 265 for electrically connecting an external earphone to the earphone; A key input unit 270 which receives various key operation signals for controlling the operation of car audio from a user; A display unit 275 configured to display an operation state of the car audio so that a user can easily see it; A front control unit 280 electrically connected to the main control unit 110 of the main body unit 100 to control the key input unit 270 and the display unit 275 and to control each unit in the front unit 200 as a whole; It includes a power supply unit 285 for supplying the operating power to each of the parts.

In the above-described configuration, the voice capture / compression processing unit 220 externally inputs an analog audio signal input from the microphone 215 using a built-in A / D converter (not shown), and specifies a sampling rate and 8-bit or 16-bit resolution. Digital audio data compressed by voice recording data storage unit 230 by sampling the signal and converting it into digital data, compressing it with Pulse Code Modulation (PCM) and AD Pulse Code Modulation (ADPCM) algorithm. It is preferable to configure to deliver.

The voice reproducing / recovery processing unit 225 receives digital audio data stored in the voice recording data storage unit 230 and restores / reproduces the same by using a PCM and ADPCM algorithm. It is preferable to configure to convert to an analog signal to output using an (not shown).

The voice recording data storage 230 may not only continuously store data even when the power is cut off, but also may be implemented as a flash memory capable of reading or rewriting arbitrary data. That is, the flash memory may include a flash ROM or an electrically erasable ROM, that is, an electrically erasable programmable read only memory (EEPROM).

The backup data storage unit 240 stores backup data previously stored in an external personal computer (PC) from the front USB port unit 235, and the backup data includes various data files such as document files, compressed files, and image files. It may be made of.

In addition, the backup data storage unit 240 is preferably implemented as a flash memory that can not only continue to store data even when the power is cut off, but also read or write any data. That is, the flash memory may include a flash ROM or an electrically erasable ROM, that is, an electrically erasable programmable read only memory (EEPROM).

The music data storage unit 245 is composed of a conventional MP3 file, which can not only continue to store data even when the power is cut off, but also can read or rewrite arbitrary data (Flash Memory). It is preferable to implement. That is, the flash memory may include a flash ROM or an electrically erasable ROM, that is, an electrically erasable programmable read only memory (EEPROM).

The key input unit 270 is provided with a plurality of keys (see FIG. 1) 21 for the overall operation of the car audio, among which the voice recording / playback function and MP3 (MP3) in the front unit 200 are provided. Preferably, function keys (eg, voice recording keys, voice playback keys, music playback keys, etc.) (not shown) for listening are included. On the other hand, it is provided separately as the function keys, but is not limited to this, it is also possible to use the function key in parallel with the existing key.

The front control unit 280 controls the backup data storage unit 240 to backup and store various data provided from an external personal computer (PC) through the front USB port unit 235, and the key of the key input unit 265. The audio signal and other sounds input from the outside through the microphone 215 according to the operation signal is stored in the voice recording data storage unit 230 by digital audio data sampled and compressed from the voice capture / compression processing unit 220. The digital audio data stored therein is output to the voice reproducing / restoration processing unit 225 to control restoration / reproduction.

In addition, the front control unit 280 controls to store the music data provided from the external personal computer (PC) through the front USB port unit 235 in the music data storage unit 245 and the key input unit 265. According to the key operation signal of the music data stored in the data storage unit 245 is output to the decoding unit 245 for restoring to the original state to control the user to listen through the earphone.

The power supply unit 285 is preferably provided with a conventional battery (Battery) separately in the interior of the front portion 200 to supply the operating power to each portion in the front portion (200).

Hereinafter, the operation of the front panel detachable car audio device of the present invention having the above-described configuration will be described in detail, and the front control unit 280 performs as a subject.

First, in order to prevent theft of a car audio device provided in a vehicle, the front part 200 is separated from the main body part 100 so that a user carries it.

At this time, if the user wants to carry the voice while carrying the separated front part 200, press a voice recording key (not shown) among the function keys provided in the key input unit 270, and voice the microphone 215. When a signal and other sounds are input, the input audio signal is stored in the voice recording data storage unit 230 after sampling and compression from the voice reproducing / restoring processor 220. On the other hand, when the user wants to play the voice recorded as described above, pressing the voice playback key (not shown) of the function key provided in the key input unit 270, voice recording stored in the voice recording data storage 230 The data is reproduced / restored through the voice reproducing / restoration processing unit 225, and the reconstructed / reproduced voice recording data is listened to through an external earphone connected to the earphone jack 265 via the earphone amplifier 260.

In addition, when a user carries the separated front part 200 and backs up various data from an external personal computer, the USB port and the front USB port part 235 provided in the personal computer are connected to a port (not shown). After the connection, the selected backup data is stored in the backup data storage unit 240 through the front USB port unit 235 when the various data to be stored by the pre-stored program is selected. Meanwhile, the backup data stored in the backup data storage 240 may be backed up and stored in the personal computer.

In addition, when the user wants to listen to the music file (MP3 file) while carrying the separated front part 200, first, the USB port and the front USB port part 235 provided in the personal computer are connected to the port connection line. After the connection, the music data is selected by the pre-stored program, the selected music data is stored in the music data storage unit 245 through the front USB port unit 235. Then, when a music play key (not shown) is pressed among the function keys provided in the key input unit 270, the encoded music data stored in the music data storage unit 245 passes through the decoding unit 250. Restored to the state, the restored digital music data is converted to an audio signal through the D / A converter 255, and then through the earphone amplification unit 260 through the external earphone connected to the earphone jack 265 Listen to the data.

Accordingly, the front panel detachable car audio device of the present invention includes a backup storage of various data, recording / reproducing of voice and listening to music files (MP3), etc., in the front panel provided to be separated to prevent theft of conventional car audio. By adding various functions, the separate front panel can be used more usefully to create higher added value.

While a preferred embodiment of the front panel detachable car audio device according to the present invention has been described above, the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to implement and this also belongs to the present invention.

For example, in the present invention, the backup data, the music data, and the voice recording data are stored in each data storage unit, but are not limited thereto. The backup data, the music data, and the voice recording data are integrated into a single data storage unit. You can also save them all.

According to the front panel detachable car audio device of the present invention as described above, by recording / playing the external voice signal and other sounds to the front panel portion provided to be separated to prevent theft of conventional car audio, There is an advantage that the separated front panel can be used more usefully.

In addition, the present invention is to be able to backup and store various data files previously stored in the external personal computer in the front panel unit provided to separate the conventional car audio to prevent theft, more convenient and convenient There is an advantage to use.

In addition, the present invention is to backup and store the music data stored in advance in the external personal computer in the front panel provided to separate the conventional car audio to prevent theft, the user listens to the stored music data through the external earphone By doing so, there is an advantage in that the separated front panel portion can be used more usefully and create higher added value.

Claims (7)

A main body of car audio, installed inside the vehicle, for listening to AM / FM radio broadcasting and playing cassette tapes or compact discs; A front panel removable car audio device comprising a front part detachably provided on the main body part and including a key input part for channel selection and other desired operations. The front unit may include a microphone for receiving an external voice and converting it into an audio signal; A voice capture / compression processor configured to sample and compress the audio signal received from the microphone; A voice reproducing / recovery processing unit for restoring / reproducing the audio data compressed from the voice capture / compression processing unit; A voice recording data storage unit for storing the compressed audio data from the voice capture / compression processor; An earphone amplifying unit for amplifying the audio signal restored / reproduced from the voice reproducing / restoring processing unit; Earphone jack for electrically connecting external earphones and The front control unit stores the data sampled and compressed from the voice capture / compression processing unit in the voice recording data storage unit according to the key operation signal of the key input unit, and outputs the stored voice recording data to the voice reproduction / restoration processing unit. Front panel removable car audio device comprising a control unit. The front panel detachable car audio device of claim 1, wherein the voice recording data storage unit comprises a flash memory. The method of claim 1, wherein the front portion, Front USB port part for electrically connecting with USB port of external personal computer and Further comprising a backup data storage unit for backing up and storing various data previously stored in the personal computer through the front USB port unit, The front control unit, the front panel removable car audio device, characterized in that for controlling to back up the various data provided from the personal computer via the front USB port unit to the backup data storage unit. The front panel removable car audio apparatus as claimed in claim 3, wherein the backup data storage unit comprises a flash memory. The method of claim 3, wherein the front portion, A music data storage unit for storing music data stored in advance in the personal computer through the front USB port unit; A decoding unit for restoring the encoded music data stored in the music data storage unit to its original state; Further comprising a D / A converter for converting the digital data restored by the decoding unit to an audio signal to output to the earphone amplifier, The front control unit stores the music data provided from the personal computer through the front USB port unit in the music data storage unit and stores the music data stored in the music data storage unit in accordance with a key operation signal of the key input unit. And a front panel detachable car audio device which outputs to the decoding unit for restoring to a state so that a user can listen to the music data through an external earphone. 6. The front panel detachable car audio device according to claim 5, wherein the music data is made of an MP3 file. 6. The front panel detachable car audio device according to claim 5, wherein the music data storage unit comprises a flash memory.