KR20090083102A - System and method for receiving broadcast signal in vehicle - Google Patents

System and method for receiving broadcast signal in vehicle Download PDF

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Publication number
KR20090083102A
KR20090083102A KR1020080009074A KR20080009074A KR20090083102A KR 20090083102 A KR20090083102 A KR 20090083102A KR 1020080009074 A KR1020080009074 A KR 1020080009074A KR 20080009074 A KR20080009074 A KR 20080009074A KR 20090083102 A KR20090083102 A KR 20090083102A
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KR
South Korea
Prior art keywords
broadcast
broadcast signal
wireless communication
signal
tuning
Prior art date
Application number
KR1020080009074A
Other languages
Korean (ko)
Inventor
안중곤
Original Assignee
주식회사 현대오토넷
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 현대오토넷 filed Critical 주식회사 현대오토넷
Priority to KR1020080009074A priority Critical patent/KR20090083102A/en
Publication of KR20090083102A publication Critical patent/KR20090083102A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A system and a method for receiving a broadcast signal in a vehicle are provided to enable a vehicle to transmit a broadcasting signal through wireless communication and control the tuning of the broadcasting frequency. A broadcasting receiver(110) tunes a broadcasting frequency received to a vehicle according to a tuning control signal received through wireless communication and transmits the broadcasting signal of the tuned broadcasting frequency through the wireless communication. A head unit(120) outputs the broadcasting signal transmitted from the broadcasting receiver through the wireless communication and transmits the tuning control signal to the broadcasting receiver through the wireless communication.

Description

System and Method for Receiving Broadcast Signal in Vehicle

The present invention relates to a broadcast signal receiving system and method of a vehicle, and more particularly to a broadcast signal receiving system and method of a vehicle capable of transmitting a broadcast signal received by the vehicle to the head unit via wireless communication.

A receiver for receiving over-the-air signals, such as an FM broadcast signal, an AM broadcast signal, a TV broadcast signal, and a DMB broadcast signal, is located in the front part of the driver's seat, and the antenna for receiving the over-the-air signal is a loop at the top of the rear seat of the vehicle. (Roof) or behind the vehicle. The broadcast signal received through the antenna and the receiver thus positioned is transmitted to the head unit of the vehicle through the wire.

1 is a block diagram of a broadcast signal receiving system of a conventional vehicle.

Referring to FIG. 1, a conventional broadcast signal reception system of a vehicle includes a broadcast receiver 110 for transmitting a received broadcast signal through a wire and an output broadcast signal transmitted through the wire from the broadcast receiver 110. The head unit 120 is provided.

The broadcast receiver 110 receives the first antenna 111 for receiving the FM / AM broadcast signal, the second antenna 112 for receiving the TV / DMB broadcast signal, and the first antenna 111. The first tuner 113 for transmitting the FM / AM broadcast signal to the head unit 120 through a wire, and the TV unit or DMB broadcast signal received through the second antenna 112 through the head unit ( And a second tuner 114 for delivery to 120.

The head unit 120 controls the broadcasting frequency tuning of the first and second tuners 113 and 114 and transmits the wires from the second tuner 122 and the control unit 121 that controls the reception and output of the broadcast signal. A decoder 122 for decoding the broadcast signal, a broadcast signal processor 123 for processing a broadcast signal transmitted through a wire from the first tuner 113 or a broadcast signal decoded by the decoder 122; An amplifier 124 for amplifying the broadcast signal processed by the broadcast signal processor 123, and a speaker 125 for outputting the broadcast signal amplified by the amplifier 124.

In the broadcast signal receiving system of a conventional vehicle having such a configuration, the broadcast receiver 110 transmits the received broadcast signal to the head unit 120 through the wire, thereby providing the direction and position of the wire and the wires of other electronic devices ( Due to the adjacent arrangement of wires, electric field noise is generated, which adversely affects reception of broadcast signals, thereby weakening radio wave reception sensitivity.

The present invention is to solve the above problems, an object of the present invention to provide a broadcast signal receiving system and method of a vehicle capable of transmitting a broadcast signal received from the vehicle to the head unit via wireless communication.

Another object of the present invention is to provide a broadcast signal receiving system and method for a vehicle capable of controlling tuning of broadcast frequencies through wireless communication in a vehicle.

Still another object of the present invention is to transmit a broadcast signal received from the vehicle to the head unit using wireless communication and to control the tuning of the broadcast frequency, thereby removing noise generated when the broadcast signal received from the vehicle is transmitted by wire. The present invention provides a system and method for receiving broadcast signals in a vehicle.

Another object of the present invention is to provide a broadcast signal receiving system and method of a vehicle which can improve the radio wave reception sensitivity of the vehicle by removing noise generated when the broadcast signal received by the vehicle is transmitted by wire.

Still another object of the present invention is to transmit a broadcast signal received from the vehicle to the head unit by using wireless communication and to control the tuning of the broadcast frequency, thereby enabling the vehicle to receive the broadcast receiving antenna without being restricted by position. A broadcast signal receiving system and method are provided.

In order to achieve the above object, a broadcast signal receiving system of a vehicle according to the present invention tunes a broadcast frequency received by a vehicle according to a tuning control signal received through wireless communication, and converts the broadcast signal of the tuned broadcast frequency into wireless communication. A broadcast receiver transmitting through; And a head unit which outputs a broadcast signal transmitted from the broadcast receiver through wireless communication to the outside and transmits the tuning control signal to the broadcast receiver through wireless communication.

A broadcast signal receiving method of a vehicle of the present invention includes the steps of: a head unit transmitting a tuning control signal for controlling tuning of a broadcast frequency to a broadcast receiver through wireless communication; Tuning, by the broadcast receiver, a broadcast frequency received by the vehicle according to the tuning control signal received through wireless communication, and transmitting a broadcast signal of the tuned broadcast frequency through wireless communication; And processing, by the head unit, a broadcast signal transmitted from the broadcast receiver through wireless communication, and outputting it to the outside.

According to the present invention having the above configuration, by transmitting a broadcast signal received through the wireless communication in the vehicle to the head unit and controlling the tuning of the broadcast frequency, to remove the noise generated when the broadcast signal received from the vehicle by wire Therefore, the radio wave reception sensitivity of the vehicle can be improved.

The present invention transmits a broadcast signal received from the vehicle to the head unit by using wireless communication and controls the tuning of the broadcast frequency, so that the broadcast receiving antenna of the vehicle can be mounted without restriction.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

2 is a block diagram of a system for receiving broadcast signals in a vehicle according to an embodiment of the present invention.

Referring to FIG. 2, a broadcast receiver 210 for transmitting a received broadcast signal through wireless communication and tuning a broadcast frequency received according to a tuning control signal received through wireless communication, and wireless communication from the broadcast receiver 210. The head unit 220 outputs a broadcast signal transmitted through the transmission signal and transmits a tuning control signal to the broadcast receiver 210 through wireless communication.

The broadcast receiver 210 is wirelessly transmitted from the first antenna 211 for receiving the FM / AM broadcast signal, the second antenna 212 for receiving the TV / DMB broadcast signal, and the head unit 220. The first tuner 213 for tuning the FM / AM broadcasting frequency received through the first antenna 211 according to the tuned control signal, and the second antenna according to the tuning control signal wirelessly transmitted from the head unit 220. The second unit tuner 214 tunes the TV / DMB broadcast frequency received through the 212 and the broadcast signal received through the first tuner 213 or the second tuner 214 through the wireless communication unit head unit ( And a wireless communication module 215 for transmitting to 220.

The first antenna 211 receives the FM broadcast signal or AM broadcast signal transmitted from the broadcasting station and transmits the received FM broadcast signal to the first tuner 213.

The second antenna 212 receives the TV broadcast signal or the DMB broadcast signal transmitted from the broadcasting station and transmits the received TV broadcast signal to the second tuner 214.

When the first tuner 213 receives a tuning control signal wirelessly transmitted from the head unit 220 through the wireless communication module 215, the first tuner 213 receives the FM broadcast received through the first antenna 211 according to the tuning control signal. The frequency or AM broadcast frequency is tuned to transmit the FM broadcast signal or AM broadcast signal of the tuned broadcast frequency to the wireless communication module 215. Here, the tuning control signal is a signal for controlling the tuning of the FM broadcast frequency or the AM broadcast frequency.

When the second tuner 214 receives a tuning control signal wirelessly transmitted from the head unit 220 through the wireless communication module 215, the second tuner 214 receives the TV broadcast received through the second antenna 212 according to the tuning control signal. Tuning the frequency or DMB broadcast frequency transmits the TV broadcast signal or the DMB broadcast signal of the tuned broadcast frequency to the wireless communication module 215. Here, the tuning control signal is a signal for controlling the tuning of the TV broadcast frequency or the DMB broadcast frequency.

The wireless communication module 215 may be implemented as a Bluetooth communication module for performing Bluetooth communication, an infrared communication module for performing infrared communication, or a Zigbee communication module for performing ZigBee communication, but is not limited thereto.

When the wireless communication module 215 is implemented as a Bluetooth communication module, the wireless communication module 215 converts the broadcast signal received through the first tuner 213 or the second tuner 214 into a signal system of the Bluetooth communication band. To the head unit 220. In this case, the wireless communication module 215 transmits the broadcast signal of the Bluetooth communication band to the head unit 220 through the third antenna 216.

When the wireless communication module 215 is implemented as an infrared communication module, the wireless communication module 215 converts the broadcast signal received through the first tuner 213 or the second tuner 214 into an infrared signal to convert the head unit into a head unit ( 220). In this case, the third antenna 216 is not mounted to the wireless communication module 215.

When the wireless communication module 215 is implemented as a Zigbee communication module, the wireless communication module 215 converts the broadcast signal received through the first tuner 213 or the second tuner 214 into a signal system of the Zigbee communication band. To the head unit 220. In this case, the wireless communication module 215 transmits the broadcast signal of the Zigbee communication band to the head unit 220 through the third antenna 216.

The wireless communication module 215 converts the tuning control signal wirelessly transmitted from the head unit 220 into a signal system suitable for the first tuner 213 or the second tuner 214, thereby converting the first tuner 213 or the first tuner. 2 is connected to the tuner 214.

The head unit 220 generates a tuning control signal, controls the reception and output of the broadcast signal, and receives a broadcast signal wirelessly transmitted from the broadcast receiver 210 and is generated from the controller 221. The wireless communication module 222 for wirelessly transmitting the tuning control signal to the broadcast receiver 210, the decoder 223 for decoding the broadcast signal received through the wireless communication module 222, and the wireless communication module 222. Amplifying the broadcast signal processed by the broadcast signal processor 224 under the control of the broadcast signal processor 224 and the controller 221 for processing the broadcast signal received through the broadcast signal decoded by the decoder 223 or the decoder 223 An amplifier 225, and one or more speakers 226 for outputting the broadcast signal amplified by the amplifier 225.

The control unit 221 generates a tuning control signal for controlling broadcast frequency tuning of the first and second tuners 213 and 214 according to a user's instruction, outputs it to the wireless communication module 222, and receives and outputs a broadcast signal. To control.

The wireless communication module 222 may be implemented as a Bluetooth communication module for performing Bluetooth communication, an infrared communication module for performing infrared communication, or a Zigbee communication module for performing ZigBee communication, and the like. Implemented as a communication module.

When the wireless communication module 215 is implemented as a Bluetooth communication module, the wireless communication module 215 converts the tuning control signal output from the controller 221 into a signal system of the Bluetooth communication band and transmits it to the broadcast receiver 210. . In this case, the wireless communication module 222 transmits the tuning control signal of the Bluetooth communication band to the broadcast receiver 210 through the fourth antenna 227.

When the wireless communication module 222 is implemented as an infrared communication module, the wireless communication module 222 converts the tuning control signal output from the control unit 221 into an infrared signal and transmits it to the broadcast receiver 220. In this case, the fourth antenna 227 is not mounted to the wireless communication module 222.

When the wireless communication module 222 is implemented as a Zigbee communication module, the wireless communication module 222 converts the tuning control signal output from the control unit 221 into a signal system of the Zigbee communication band and transmits it to the broadcast receiver 220. . In this case, the wireless communication module 222 transmits the tuning control signal of the Zigbee communication band to the broadcast receiver 210 through the fourth antenna 227.

The wireless communication module 222 converts an FM broadcast signal or an AM broadcast signal transmitted wirelessly from the broadcast receiver 210 into a signal system suitable for the broadcast signal processor 224 and connects it to the broadcast signal processor 224. A TV broadcast signal or a DMB broadcast signal transmitted wirelessly from the broadcast receiver 210 is converted into a signal system suitable for the decoder 223 and connected to the decoder 223.

The decoder 223 decodes a baseband TV broadcast signal or DMB broadcast signal decoded by decoding the TV broadcast signal or DMB broadcast signal received through the wireless communication module 222 under the control of the controller 221. Output to the broadcast signal processing unit 224.

When the FM broadcast signal or the AM broadcast signal received through the wireless communication module 222 is input, the broadcast signal processor 224 converts the input analog FM broadcast signal or AM broadcast signal into a digital signal under the control of the controller 221. After the conversion, the sound field and the volume level of the digital FM broadcast signal or the AM broadcast signal are adjusted, and the digital FM broadcast signal or the AM broadcast signal is converted into an analog signal and output to the amplifier 225. When the baseband analog TV broadcast signal or DMB broadcast signal decoded by the decoder 223 is input, the broadcast signal processor 224 receives the analog TV broadcast signal or the DMB broadcast signal input under the control of the controller 221. After converting the digital signal into a digital signal to adjust the sound field and volume level of the digital TV broadcast signal or DMB broadcast signal, the digital TV broadcast signal or DMB broadcast signal is converted into an analog signal and output to the amplifier 225. The main function of the broadcast signal processor 224 is to convert the received broadcast signal into an electric signal suitable for the speaker 226.

3 is a flowchart illustrating a tuning process of a broadcast signal receiving system of a vehicle according to the present invention.

Referring to FIG. 3, first, when the controller 221 generates a tuning control signal according to a user's instruction (S101), the wireless communication module 222 of the head unit 220 broadcasts the generated tuning control signal wirelessly. Transmit to 210 (S102).

At this time, the wireless communication module 215 of the broadcast receiver 210 converts the tuning control signal transmitted wirelessly from the head unit 220 into a signal system suitable for the first tuner 213 or the second tuner 214, thereby providing a first system. The first tuner 213 and the second tuner 214 are connected (S103).

Then, the first tuner 213 or the second tuner 214 tunes the received broadcast frequency according to the tuning control signal (S104).

4 is a flowchart illustrating a broadcast signal receiving process of a broadcast signal receiving system of a vehicle according to the present invention.

Referring to FIG. 4, first, when a broadcast signal transmitted from a broadcasting station is received (S201), the first tuner 213 or the second tuner 214 tunes the received broadcast signal to the wireless communication module 215. (S202). The wireless communication module 215 wirelessly transmits the tuned broadcast signal to the head unit 220 (S203).

Subsequently, the wireless communication module 222 of the head unit 220 converts a broadcast signal wirelessly received from the broadcast receiver 210 into a signal system suitable for the broadcast signal processor 224 and transmits the signal to the broadcast signal processor 224. The received broadcast signal is converted into a signal system suitable for the decoder 223 and transferred to the decoder 223 (S204). In this process, the decoder 223 decodes the broadcast signal received through the wireless communication module 222 and outputs the decoded baseband broadcast signal to the broadcast signal processor 224.

In this case, the broadcast signal processor 224 converts the input analog broadcast signal into a digital signal to adjust the sound field and volume level of the digital broadcast signal, and then converts the digital broadcast signal into an analog signal (S205). The amplifier 225 amplifies the broadcast signal processed by the broadcast signal processor 224 and outputs the result to the outside through the speaker 226 (S206).

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

1 is a block diagram of a broadcast signal receiving system of a conventional vehicle.

2 is a block diagram of a system for receiving broadcast signals in a vehicle according to an embodiment of the present invention.

3 is a flowchart illustrating a tuning process of a broadcast signal receiving system of a vehicle according to the present invention;

4 is a flowchart illustrating a broadcast signal receiving process of a broadcast signal receiving system of a vehicle according to the present invention;

Claims (7)

A broadcast receiver for tuning a broadcast frequency received by the vehicle according to a tuning control signal received through wireless communication and transmitting a broadcast signal of the tuned broadcast frequency through wireless communication; And And a head unit for outputting a broadcast signal transmitted from the broadcast receiver through wireless communication to the outside and transmitting the tuning control signal to the broadcast receiver through wireless communication. The method of claim 1, wherein the broadcast receiver, A first tuner for tuning the received FM / AM broadcast frequency according to the tuning control signal; A second tuner for tuning the received TV / DMB broadcasting frequency according to the tuning control signal; And Transmitting a broadcast signal received through the first tuner or the second tuner to the head unit wirelessly, and transmitting the tuning control signal wirelessly transmitted from the head unit to the first tuner or the second tuner. Broadcast signal receiving system of a vehicle comprising a. The method of claim 1, wherein the head unit, A control unit generating the tuning control signal and controlling reception and output of a broadcast signal; A wireless communication module for receiving a broadcast signal wirelessly transmitted from the broadcast receiver, and wirelessly transmitting the tuning control signal generated from the control unit to the broadcast receiver; A decoder for decoding the broadcast signal received through the wireless communication module; A broadcast signal processor for processing an FM / AM broadcast signal received through the wireless communication module or a TV / DMB broadcast signal decoded by the decoder; An amplifier for amplifying the broadcast signal processed by the broadcast signal processor; And And at least one speaker for outputting a broadcast signal amplified by the amplifier. According to claim 2 or 3, wherein the wireless communication module, A broadcast signal receiving system of a vehicle, characterized in that implemented as a Bluetooth communication module for performing Bluetooth communication, an infrared communication module for performing infrared communication, or a Zigbee communication module for performing Zigbee communication. Transmitting, by the head unit, a tuning control signal for controlling tuning of a broadcast frequency to a broadcast receiver through wireless communication; Tuning, by the broadcast receiver, a broadcast frequency received by the vehicle according to the tuning control signal received through wireless communication, and transmitting a broadcast signal of the tuned broadcast frequency through wireless communication; And And processing, by the head unit, a broadcast signal transmitted from the broadcast receiver through wireless communication and outputting the broadcast signal to the outside. The method as claimed in claim 5, wherein the tuning control signal is transmitted to a broadcast receiver through wireless communication. And the head unit transmits the tuning control signal through Bluetooth communication, infrared communication, or Zigbee communication. The method of claim 5, wherein the transmitting of the broadcast signal through wireless communication, The broadcast receiver transmits a broadcast signal through a Bluetooth communication, an infrared communication, or a Zigbee communication.
KR1020080009074A 2008-01-29 2008-01-29 System and method for receiving broadcast signal in vehicle KR20090083102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080009074A KR20090083102A (en) 2008-01-29 2008-01-29 System and method for receiving broadcast signal in vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080009074A KR20090083102A (en) 2008-01-29 2008-01-29 System and method for receiving broadcast signal in vehicle

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KR20090083102A true KR20090083102A (en) 2009-08-03

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