WO2010050696A3 - Broadcast receiving system and control method thereof - Google Patents

Broadcast receiving system and control method thereof Download PDF

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Publication number
WO2010050696A3
WO2010050696A3 PCT/KR2009/006122 KR2009006122W WO2010050696A3 WO 2010050696 A3 WO2010050696 A3 WO 2010050696A3 KR 2009006122 W KR2009006122 W KR 2009006122W WO 2010050696 A3 WO2010050696 A3 WO 2010050696A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency signal
receiving system
intermediate frequency
saw filter
broadcast receiving
Prior art date
Application number
PCT/KR2009/006122
Other languages
French (fr)
Korean (ko)
Other versions
WO2010050696A2 (en
Inventor
최석동
Original Assignee
엘지이노텍주식회사
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 엘지이노텍주식회사 filed Critical 엘지이노텍주식회사
Priority to CN2009801478200A priority Critical patent/CN102227906A/en
Publication of WO2010050696A2 publication Critical patent/WO2010050696A2/en
Publication of WO2010050696A3 publication Critical patent/WO2010050696A3/en

Links

Classifications

    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • 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

Abstract

One embodiment of the present invention relates to a broadcast receiving system and to a control method thereof. The broadcast receiving system comprises an intermediate frequency circuit unit which tunes the high frequency signal output through an antenna to an intermediate frequency signal, and outputs the intermediate frequency signal, a first SAW filter which enables only the band of a digital broadcast frequency signal from among the intermediate frequency signal output from the intermediate frequency circuit unit to pass, a digital amplifier which amplifies the digital broadcast frequency signal attenuated by the first SAW filter, a second SAW filter which enables only the band of an analog broadcast frequency signal from among the digital broadcast frequency signal amplified by the digital amplifier to pass; and an analog demodulation unit which demodulates the analog broadcast frequency signal filtered by the second SAW filter, and outputs the demodulated signal.
PCT/KR2009/006122 2008-10-27 2009-10-22 Broadcast receiving system and control method thereof WO2010050696A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009801478200A CN102227906A (en) 2008-10-27 2009-10-22 Broadcast receiving system and control method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0105357 2008-10-27
KR1020080105357A KR20100046498A (en) 2008-10-27 2008-10-27 Analog/digital tuner

Publications (2)

Publication Number Publication Date
WO2010050696A2 WO2010050696A2 (en) 2010-05-06
WO2010050696A3 true WO2010050696A3 (en) 2010-06-24

Family

ID=42129423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/006122 WO2010050696A2 (en) 2008-10-27 2009-10-22 Broadcast receiving system and control method thereof

Country Status (3)

Country Link
KR (1) KR20100046498A (en)
CN (1) CN102227906A (en)
WO (1) WO2010050696A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983834A (en) * 2012-11-12 2013-03-20 江苏苏美达机电有限公司 Filter amplifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040105306A (en) * 2003-06-05 2004-12-16 삼성전기주식회사 Analog/digital television tuner
KR20070063210A (en) * 2005-12-14 2007-06-19 엘지이노텍 주식회사 Analog video control circuit 0f tuner use as analog and digital
KR20080000141A (en) * 2006-06-26 2008-01-02 엘지이노텍 주식회사 Analog/digital tuner
KR20080079823A (en) * 2007-02-28 2008-09-02 엘지이노텍 주식회사 Analog and digital tuner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040105306A (en) * 2003-06-05 2004-12-16 삼성전기주식회사 Analog/digital television tuner
KR20070063210A (en) * 2005-12-14 2007-06-19 엘지이노텍 주식회사 Analog video control circuit 0f tuner use as analog and digital
KR20080000141A (en) * 2006-06-26 2008-01-02 엘지이노텍 주식회사 Analog/digital tuner
KR20080079823A (en) * 2007-02-28 2008-09-02 엘지이노텍 주식회사 Analog and digital tuner

Also Published As

Publication number Publication date
KR20100046498A (en) 2010-05-07
WO2010050696A2 (en) 2010-05-06
CN102227906A (en) 2011-10-26

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