KR20020049525A - one flesh style of hands free for car audio of vehicles - Google Patents

Abstract

PURPOSE: A single unit handsfree car audio is provided to compare a dial tone of a cellular phone with a broadcasting frequency set in a microcomputer through a specific broadcasting frequency received through an antenna, automatically convert the broadcasting frequency into an area broadcasting frequency, and receive the broadcasting frequency. CONSTITUTION: A cellular phone mounting unit(20) mounts a cellular phone and supplies a power to perform a communication. An audio device(10) has a microcomputer(13) for receiving the dial tone of the cellular phone mounted on the cellular phone mounting unit(20) through an antenna(11), comparing the received frequency with a local classified broadcasting frequency list, discriminating an area, and automatically converting the received frequency into a broadcasting frequency of a driving area frequency so that an acoustic reproducing unit reproduces an acoustic signal.

Description

Hands-free integrated car audio {one flesh style of hands free for car audio of vehicles}

The present invention relates to a handsfree integrated car audio. More specifically, the phone's dial tone compares the broadcasting frequency set in the microcomputer with the specific broadcasting frequency received through the antenna, and then automatically switches to the local broadcasting frequency while driving so that the driver can receive the broadcasting frequency. It's about audio.

In general, one-way communication is used between information and communication operators.

With the progress of the current information society, the way of life of human beings is constantly changing, and only the interior space of automobiles is becoming a different world.

Fortunately, with the advance of mobile communication technology, automobiles are also included in the information society.

Automobile telephones have developed technologies for narrowband (50㎑-25㎑) and wideband (automatic switching) connections. Since then, the mobile telephone system has been developed by using the 800 MHz band developed as a mobile communication frequency band to provide services for about 100,000 subscribers in one region as small as possible.

Such a mobile phone has been developed as a high-information medium by the rapid development of mobile communication, and has been developing a transmission medium called a telephone and applying various services to the mobile communication field, which are not limited to portable and telephone, which are called the ultimate form of communication.

In addition, the car's audio system creates a new genre of car audio for the interior of the car, apart from home audio in the home, providing the driver with comfort.

These audio systems use radio waves, especially frequency modulation (FM), which are short (high frequency) radio waves, so that obstacles such as mountains and buildings can be disturbed in the range up to the point close to the station (30 km to 50 km). Only when it is not available, high-quality reception can be expected, and because the broadcasting frequencies are different for each region, when the long-distance movement is away from the frequency range, the current output becomes weak, so noise is generated and reception is impossible.

Therefore, the audio system had the inconvenience of resetting the broadcasting frequency when entering another area to receive a high quality frequency.

Conventional audio device for solving this problem RDS (RADIO DATA SYSTEM) which is a device for automatically changing the broadcast signal of the best signal among the same ID broadcasting station by receiving the ID code from the receiver to give a regional ID code at the broadcasting station Since it must be mounted on a vehicle, a technology investment cost is required, and since it must be connected with a broadcasting station system, a basic device must be prepared, which has a problem of low economic efficiency.

In addition, the conventional audio device for solving such a problem has a problem that it is difficult to popularize due to the high cost because it requires a GPS receiver of high cost because it automatically tunes the corresponding broadcasting station by the position tracking using satellites.

The present invention is intended to solve the above problems, the purpose of which is to automatically switch to the local broadcasting frequency while driving after comparing the broadcasting frequency set in the microcomputer through the specific broadcasting frequency received through the antenna This allows the driver to receive the broadcast frequency.

1 is a block diagram of a hands-free integrated audio device according to an exemplary embodiment of the present invention.

Code descriptions for the main parts of the drawings

10; audio device 11; antenna

12; FM / AM tuner section 13; sound reproduction section

14; microcomputer 15; display unit

16; handsfree 20; mobile phone mounting

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail enough to enable those skilled in the art to easily carry out the present invention. . Other objects, features, and operational advantages, including the object, operation, and effect of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only to this embodiment. However, various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other equivalent embodiments.

1 is a block diagram of a hands-free integrated audio device according to an exemplary embodiment of the present invention.

As illustrated in FIG. 1, the hands-free integrated audio device of the present invention is connected to a mobile phone mounting unit 20 to enable communication while mounting a personal mobile phone in a vehicle and supplying power.

The mobile phone mounting unit 20 is provided with a circuit board to be converted to a constant voltage by receiving the power of the battery (not shown) of the vehicle is to be removable phone.

On the other hand, the hands-free unit 17 and the hands-free unit 17 are connected to the mobile phone mounting unit 20 by wire to transmit and receive a communication signal of the mobile phone and the selection key is connected to select a specific frequency. An audio unit equipped with a microcomputer 14 for inputting a signal to externally transmit a vehicle location request request signal to the antenna 11 every cycle and automatically converting the received antenna frequency into a list of regional frequencies set therein. 10 has a configuration to be connected.

The audio unit 10 receives a local broadcasting frequency received through the antenna 11 and an FM / AM tuner unit 12 for amplifying the received signal, and a signal demodulated by the FM / AM tuner unit 12. The audio reproducing unit 13 for reproducing and outputting a voice signal of the display unit 15 and the display unit 15 for displaying so that the received local frequency can be visually confirmed.

From the above configuration, the present invention provides an audio device 10 that communicates with the mobile phone of the mobile phone mounting unit 20 that inserts the mobile phone so as to supply power or communicate with the driver's mobile phone. It is to be able to grasp.

To confirm the driving position of the vehicle, the audio device 10 is an antenna 11 due to the transmission confirmation of the transmission / reception of the terminal mobile phone from the service network operator due to the use of the mobile phone or the mobile phone from time to time to check whether the mobile phone can be transmitted from time to time. The local frequency included in the specific frequency received through the output to the microcomputer 14 to determine the specific region by comparing the local frequency received by the microcomputer 14 with the frequency list set therein.

At this time, the microcomputer 14 automatically converts the broadcasting frequency of the corresponding region to amplify the broadcasting frequency with the FM / AM tuner 12 so that the audio signal can be heard and listen to the broadcasting sound through the sound reproducing unit 13. It is.

On the other hand, when the audio device 10 inputs the number assigned to each region set inside the microcomputer 14 through the number input panel installed in the hands free unit 16, the broadcasting frequency for each region is automatically switched to the region. To receive the broadcast frequency.

The present invention acting as described above compares the broadcasting frequency set in the microcomputer with a specific broadcasting frequency received through the antenna and then automatically switches to the local broadcasting frequency while driving so that the driver can receive the broadcasting frequency. Has the effect.

Claims (2)

A mobile phone mounting unit 20 for providing a power supply by mounting a personal mobile phone in a vehicle interior, and receiving a dial tone of the mobile phone mounted on the mobile phone mounting unit 20 through the antenna 11 and receiving the received frequency and internal parts. The audio device 10 connected to the microcomputer 13 connected with the microcomputer 13 for automatically reproducing the sound signal by the sound reproducing unit by automatically determining the area of the driving area and comparing the area with the broadcasting frequency list for each area set in FIG. Hands-free all-in-one car audio. The FM / AM tuner of claim 1, wherein the audio device receives a local broadcasting frequency received through the antenna 11 and amplifies the received signal so that the audio signal can be reproduced through the sound reproducing unit 13. Hands-free integrated car audio made by connecting the unit 12 and the display unit 15 for displaying the received local frequency so as to visually check.