KR20090059878A - Complex tuner module - Google Patents

Complex tuner module Download PDF

Info

Publication number
KR20090059878A
KR20090059878A KR1020070126956A KR20070126956A KR20090059878A KR 20090059878 A KR20090059878 A KR 20090059878A KR 1020070126956 A KR1020070126956 A KR 1020070126956A KR 20070126956 A KR20070126956 A KR 20070126956A KR 20090059878 A KR20090059878 A KR 20090059878A
Authority
KR
South Korea
Prior art keywords
signal
audio
frequency
bluetooth
low noise
Prior art date
Application number
KR1020070126956A
Other languages
Korean (ko)
Inventor
이용군
Original Assignee
삼성전기주식회사
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 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020070126956A priority Critical patent/KR20090059878A/en
Publication of KR20090059878A publication Critical patent/KR20090059878A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits
    • 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
    • H04N5/455—Demodulation-circuits
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

A complex tuner module is provided to transmit data of a broadcasting signal to another device, thereby reducing the entire manufacturing cost of a broadcasting receiving device. A complex tuner module comprises a tuner(110), a demodulator(120), an interface unit(130), and a Bluetooth signal converting unit(140). The tuner receives a frequency signal of a broadcasting wave band and a frequency signal of a Bluetooth band to output a specific channel signal. The demodulator demodulates the specific channel signal from the tuner to output audio/video data. The interface unit connects the demodulator with an audio/video processor so that a signal outputted from the demodulator is processed in the audio/video processor. The Bluetooth signal converting unit is connected to the interface unit. The Bluetooth signal converting unit converts the audio/video data processed in the audio/video processor into a Bluetooth frequency band signal.

Description

Complex tuner module {COMPLEX TUNER MODULE}

The present invention relates to a composite tuner module, and more particularly, to a tuner module capable of receiving a broadcast wave signal and providing a Bluetooth function for transmitting data of the received broadcast wave to another device.

With the development of mobile communication devices, a technology for receiving broadcast waves using mobile communication devices has become common. As a broadcast wave signal using the mobile communication device, digital video broadcasting-handheld (DVB-H), digital multimedia broadcasting (DMB), integrated services digital broadcasting-terrestrial (ISDB-T), and the like are used.

Currently, standardization and commercialization of digital audio broadcasting is in progress worldwide, and in Korea, digital broadcasting service is provided as DMB (Digital Multimedia Broadcasting). The digital multimedia broadcasting is capable of transmitting high quality CD-quality sound, text, graphics, and moving pictures beyond the conventional AM and FM radio types as voice broadcasting is digitized, and provides various data services, two-way, and excellent mobile reception quality. It is the next generation broadcast to provide.

As the receiving device of the DMB, a portable communication device such as a PDA or a mobile phone can be used. The DMB as described above can guarantee a high quality without disturbing radio wave reception even when using a portable device, and has high transmission capacity and high transmission efficiency. As the system can be implemented, the research on the application thereof continues.

In the conventional DMB receiving apparatus, the tuner module simply receives the DMB signal and provides the same to the mobile communication terminal. Therefore, a separate device is required to transmit the data of the received signal to another device.

In order to solve the above problems, the present invention includes a tuner unit for receiving a broadcast wave and a Bluetooth signal converter for transmitting a Bluetooth signal can transmit the data of the received broadcast wave signal to another device using a Bluetooth signal. It is an object to provide a composite tuner module.

The present invention provides a tuner unit for receiving a frequency signal of a broadcast wave band and a frequency signal of a Bluetooth band and outputting a specific channel signal, and a demodulator for demodulating a specific channel signal from the tuner unit and outputting audio / video data; An interface unit connecting the demodulator and the audio / video processor so that a signal output from the demodulator is processed by an external audio / video processor, and an audio unit connected to the interface unit and processed by the audio / video processor It is possible to provide a complex tuner module including a Bluetooth signal converter for converting the / video data into a Bluetooth frequency band signal.

The tuner unit includes a plurality of low noise amplifiers for amplifying frequency signals of different bands, a down converter for mixing a signal passing through the low noise amplifier and an oscillation signal, and a signal of a predetermined band among the output signals of the down converter. And a low pass filter.

The low noise amplifier comprises: a first low noise amplifier for amplifying a first frequency band signal, a second low noise amplifier for amplifying a second frequency band signal, and amplifying a third frequency band signal A third low noise amplifier and a fourth low noise amplifier for amplifying the fourth frequency band signal may be included.

The first frequency band signal is about 170 to 240 MHz band signal, the second frequency band signal is about 470 to 862 MHz band signal, the third frequency band signal is about 1.4 GHz band signal, and the fourth frequency The band signal may be about 2.2 to 2.6 GHz band signal.

The Bluetooth signal converter may include a modulator for modulating the audio / video data, an up converter for mixing an output signal of the modulator with an oscillation signal, and a power amplifier for amplifying the output signal of the up converter.

According to the present invention, a tuner module used in a broadcast receiving apparatus can receive a broadcast wave signal and transmit data of the broadcast wave signal to another device, thereby obtaining a tuner module that can reduce the overall production cost of the broadcast receiving apparatus. .

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

1 is a configuration diagram of a composite tuner module according to an embodiment of the present invention.

Referring to FIG. 1, the complex tuner module 100 according to the present embodiment may include a tuner unit 110, a demodulator 120, an interface unit 130, and a Bluetooth signal converter 140. .

The tuner 110 may output a frequency signal of a specific channel among frequency signals received from an antenna. In this embodiment, the tuner unit 110 may receive a broadcast wave signal and a Bluetooth band frequency signal and output a frequency signal of a specific channel.

In the present embodiment, the tuner unit 110 may include a low noise amplifier, a down converter, and a low pass filter.

The low noise amplifier may amplify a frequency signal received by an antenna, and the down converter may mix an amplified signal and an oscillation signal amplified by the low noise amplifier to generate an intermediate frequency. The low pass filter may pass only a predetermined low band frequency signal among the output signals of the down converter. In the present embodiment, the low pass filter may be a variable low pass filter capable of varying the pass frequency band according to the bandwidth of the reception channel.

The demodulator 120 may demodulate a signal output from the tuner 110. The demodulator 120 may convert a signal output from the tuner 110 into a digital signal, and extract audio / video data from the converted digital signal. In the present embodiment, the demodulator 120 selects a channel from an orthogonal signal, extracts original data corresponding to the selected channel, and performs an error correction process on the extracted original data to transform a transform stream (TS). Data can be output.

The interface unit 130 may send audio / video data output from the demodulator 120 to an external audio / video processor. The audio / video processor may process the audio / video data and output the audio / video data to an audio output device and a video output device.

The Bluetooth signal converter 140 may convert a digital signal input through the interface unit into a baseband conforming to the standard of Bluetooth communication, and convert the baseband processed signal into a high frequency signal to transmit the baseband processed signal through an antenna. .

The Bluetooth signal converter 140 may include a modulator, an up converter, and a power amplifier. In the modulator, the audio / video data signal input through the interface unit 130 may be converted into an analog signal. The up converter may perform upconversion by adding an oscillation frequency to a frequency of a signal converted by the modulator. In the present embodiment, the up converter may convert an intermediate frequency signal output from the modulator into an RF signal. The converted RF signal may be amplified by the power amplifier and transmitted to an receiver of another device through an antenna.

2 is a block diagram of a complex tuner module according to another embodiment of the present invention.

2, the complex tuner module 200 according to the present embodiment may include a tuner unit 210, a demodulator 220, an interface unit 230, and a Bluetooth signal converter 240. .

The tuner 210 may output a frequency signal of a specific channel among frequency signals received from an antenna. In the present embodiment, the tuner unit 210 may receive a broadcast wave signal and a Bluetooth band frequency signal and output a frequency signal of a specific channel.

In this embodiment, the tuner unit 210 may include a low noise amplifier 211, 212, 213, 214, a down converter 215, and a low pass filter 216.

In the present embodiment, the low noise amplifier may include first to fourth low noise amplifiers 211, 212, 213 and 214 to amplify the signals of the first to fourth frequency bands among the frequency signals received by the antenna. Can be.

The first low noise amplifier 211 may amplify a frequency signal of about 170 to 240 MHz band. That is, the frequency signal in the VHF band can be amplified.

The second low noise amplifier 212 may amplify a frequency signal of about 470 to 862 MHz band. That is, the frequency signal of the UHF band can be amplified.

The third low noise amplifier 213 may amplify a frequency signal of about 1.4 GHz band. That is, the L-band frequency signal can be amplified.

The fourth low noise amplifier 214 may amplify a frequency signal of about 2.2 to 2.6 GHz band. That is, the frequency signal of the S band can be amplified.

The down converter 215 may generate an intermediate frequency by mixing the oscillated signal and the signal amplified by the low noise amplifier. In the present embodiment, the down converter may output a signal obtained by subtracting the input signal frequency of the low noise amplifier from the oscillation frequency as an intermediate frequency signal.

The low pass filter 216 may pass only a predetermined low band frequency signal among the output signals of the down converter 215. In the present embodiment, since the low noise amplifiers amplify frequency signals of different bands, the low pass filters can be arranged so as to correspond to the signals amplified by the low noise amplifiers. In the present embodiment, the low pass filter may be a variable low pass filter capable of varying the pass frequency band according to the bandwidth of the reception channel.

The demodulator 220 may demodulate the signal output from the tuner 210. The demodulator 220 may convert a signal output from the tuner 210 into a digital signal and extract audio / video data from the converted digital signal. In the present embodiment, the demodulator 220 selects a channel from an orthogonal signal, extracts original data corresponding to the selected channel, and performs error correction on the extracted original data to transform a transform stream (TS). Data can be output.

The interface unit 230 may send audio / video data output from the demodulator 220 to an external audio / video processor. The audio / video processor may process the audio / video data and output the audio / video data to an audio output device and a video output device.

The Bluetooth signal converter 240 may convert a digital signal into a baseband conforming to a standard of Bluetooth communication, and convert the baseband processed signal into a high frequency signal.

The Bluetooth signal converter 240 may include a modulator 241, an up converter 242, and a power amplifier 243.

The modulator 241 may convert an audio / video data signal input through the interface unit 230 into an analog signal. That is, the modulator 241 may include an error correction code for the packet input through the interface, and modulate and code the packet to convert the packet into an intermediate frequency signal.

The up converter 242 may perform upconversion by adding an oscillation frequency to the frequency of the signal converted by the modulator 241. In the present embodiment, the up converter 242 may convert an intermediate frequency signal output from the modulator 241 into an RF signal.

The converted RF signal may be amplified by the power amplifier 243 and transmitted to the receiver of another device through an antenna.

It is intended that the invention not be limited by the foregoing embodiments and the accompanying drawings, but rather by the claims appended hereto. Accordingly, various forms of substitution, modification, and alteration may be made by those skilled in the art without departing from the technical spirit of the present invention described in the claims, which are also within the scope of the present invention. something to do.

1 is a configuration diagram of a composite tuner module according to an embodiment of the present invention.

2 is a configuration diagram of a composite tuner module according to another embodiment of the present invention.

<Code Description of Main Parts of Drawing>

110: tuner portion 120: demodulation portion

130: interface unit 140: Bluetooth signal conversion unit

Claims (5)

A tuner unit which receives a frequency signal of a broadcast wave band and a frequency signal of a Bluetooth band and outputs a specific channel signal; A demodulator for demodulating a specific channel signal from the tuner and outputting audio / video data; An interface unit connecting the demodulator and the audio / video processor such that a signal output from the demodulator is processed by an external audio / video processor; And A Bluetooth signal converter connected to the interface unit and converting audio / video data processed by the audio / video processor into a Bluetooth frequency band signal Complex tuner module comprising a. The method of claim 1, The tuner unit, A plurality of low noise amplifiers each amplifying frequency signals of different bands; A down converter for mixing the signal passing through the low noise amplifier and the oscillation signal; And Low pass filter that passes only signals of a predetermined band among the output signals of the down converter Complex tuner module comprising a. The method of claim 2, The low noise amplifier, A first low noise amplifier performing amplification on the first frequency band signal; A second low noise amplifier for amplifying a second frequency band signal; A third low noise amplifier performing amplification on the third frequency band signal; And A fourth low noise amplifier for amplifying a fourth frequency band signal Complex tuner module comprising a. The method of claim 3, The first frequency band signal is about 170 to 240 MHz band signal, The second frequency band signal is about 470 to 862 MHz band signal, The third frequency band signal is about 1.4 GHz band signal, And said fourth frequency band signal is about 2.2 to 2.6 GHz band signal. The method of claim 1, The Bluetooth signal converter, A modulator for modulating the audio / video data; An up converter for mixing an output signal of the modulator with an oscillation signal; And A power amplifier for amplifying the output signal of the up converter Complex tuner module comprising a.
KR1020070126956A 2007-12-07 2007-12-07 Complex tuner module KR20090059878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070126956A KR20090059878A (en) 2007-12-07 2007-12-07 Complex tuner module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070126956A KR20090059878A (en) 2007-12-07 2007-12-07 Complex tuner module

Publications (1)

Publication Number Publication Date
KR20090059878A true KR20090059878A (en) 2009-06-11

Family

ID=40989909

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070126956A KR20090059878A (en) 2007-12-07 2007-12-07 Complex tuner module

Country Status (1)

Country Link
KR (1) KR20090059878A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113922842A (en) * 2021-11-15 2022-01-11 北京允芯微电子有限公司 Method for increasing 2.4GHz frequency band communication distance, transceiver, chip and system on chip
KR20230014546A (en) 2021-07-21 2023-01-30 현대자동차주식회사 Wire lock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230014546A (en) 2021-07-21 2023-01-30 현대자동차주식회사 Wire lock
CN113922842A (en) * 2021-11-15 2022-01-11 北京允芯微电子有限公司 Method for increasing 2.4GHz frequency band communication distance, transceiver, chip and system on chip

Similar Documents

Publication Publication Date Title
JP2009531975A5 (en)
US7711335B2 (en) Digital satellite receiver and method for switching among multiple receiver antennas using diversity circuitry
US20120315950A1 (en) Dual mode mobile communication terminal
KR100824606B1 (en) Digital Multimedia Broadcasting Receiver
JP2010239535A (en) Transfer device
CN206332775U (en) A kind of wireless video transmission system
KR20090059878A (en) Complex tuner module
KR101691420B1 (en) Apparatus for trnasmitting/receiving in wireless communication system
KR20050033304A (en) Digital multimedia broadcasting receiver
WO2012129855A1 (en) Method for internal cmmb antenna of hand-held terminal and device thereof
US20090278994A1 (en) Method and system for an integrated multi-standard audio/video receiver
JP2011250093A (en) Receiver and transmitter
EP1717948B1 (en) Wideband phase shift device
KR200386118Y1 (en) Multi channel digital wireless microphone system
CN107317981B (en) Channel receiving switching control device and method based on DVB-C and DTMB
KR100723151B1 (en) Mobile digital tv receiving module
US8107568B2 (en) Coupling channel noise canceling circuit
CN102648585A (en) Method and system for receiving radio transmissions
KR100726545B1 (en) Digital multimedia broadcasting for unification audio decoder
KR200419434Y1 (en) T-DMB receiver by using coaxial distribution of TV network
JP2006211171A (en) Relay amplifier
CN101286748A (en) Broadcast receiving apparatus and method for receiving broadcast signal
KR20060094170A (en) Receive apparatus and method embodying diversity using coupling
KR100503319B1 (en) receiver for radio broadcast of pulse code modulation
KR20110051866A (en) Rf signal processing circuit

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application