KR100200647B1 - 멀티 수신 복조장치 - Google Patents
멀티 수신 복조장치 Download PDFInfo
- Publication number
- KR100200647B1 KR100200647B1 KR1019970001307A KR19970001307A KR100200647B1 KR 100200647 B1 KR100200647 B1 KR 100200647B1 KR 1019970001307 A KR1019970001307 A KR 1019970001307A KR 19970001307 A KR19970001307 A KR 19970001307A KR 100200647 B1 KR100200647 B1 KR 100200647B1
- Authority
- KR
- South Korea
- Prior art keywords
- pass filter
- band pass
- broadcasting
- selectively
- band
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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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
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/26—Demodulation of angle-, frequency- or phase- modulated oscillations by means of sloping amplitude/frequency characteristic of tuned or reactive circuit
-
- 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
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0001—Circuit elements of demodulators
- H03D2200/0017—Intermediate frequency filter
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Television Receiver Circuits (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
방송 방식 | 영상 반송파 | 칼라 반송파 | 음성반송파 | 영상-칼라 간격ⓐ(영상) | 영상-칼라 간격ⓑ(음성) | 오디오 변조 |
M | 38.9MHz | 35.32MHz | 34.4MHz | 3.58MHz | 4.5MHz | FM |
B/G | 38.9MHz | 34.47MHz | 33.4MHz | 4.43MHz | 5.5MHz | FM |
I | 38.9MHz | 34.47MHz | 32.9MHz | 4.43MHz | 6.0MHz | FM |
D/K | 38.9MHz | 34.47MHz | 32.9MHz | 4.43MHz | 6.5MHz | FM |
L | 38.9MHz | 34.47MHz | 32.9MHz | 4.43MHz | 6.5MHz | AM |
L' | 34.4MHz | 38.83MHz | 40.9MHz | 4.43MHz | 6.5MHz | AM |
Claims (4)
- 멀티 방송 수신 복조 장치에 있어서, 수신되는 중간 주파수로부터 각 방송 방식에 맞는 영상 및 음성 반송파 성분이 선택적으로 밴드 패스 필터링되는 제1 및 제2밴드패스필터 수단; 상기 제1밴드패스필터에서 출력되는 영상 반송파로 부터 영상 신호를 각 방송 방식에 맞게 선택적으로 검파하여 복조하는 영상 복조부; 각 방송 방식에 맞는 음성 반송파 주파수를 선택적으로 트랩하여 상기 영상 복조수단으로 인가하는 사운드 트랩 수단; 상기 제2밴드패스필터 수단에서 출력되는 음성 반송파로 부터 음성 신호를 각 방송 방식에 맞게 선택적으로 검파하여 복조하는 음성 복조수단; 각 방송 방식에 맞게 음성 반송파 성분을 선택적으로 밴드 패스 필터링하여 상기 음성 복조수단으로 인가하는 사운드 밴드패스필터 수단; 상기 제1 및 2밴드패스필터수단, 상기 사운드 트랩수단, 및 상기 사운드 밴드패스필터수단에 각 방송 방식에 맞게 선택하는 제어 신호를 발생하는 제어수단을 포함하는 것을 특징으로 하는 멀티 수신 복조 장치.
- 제1항에 있어서, 상기 제어수단은 각나라마다 검출된 전원 주파수에 따라 각 방송 방식에 맞는 주파수 밴드를 선택하는 수단임을 특징으로 하는 멀티 수신 복조 장치.
- 제1항에 있어서, 상기 제어수단은 전원 주파수가 60Hz로 검출되면 M-시스템의 방송 방식의 주파수 밴드를 선택하는 수단임을 특징으로 하는 멀티 수신 복조 장치.
- 제1항에 있어서, 상기 제어수단은 전원 주파수가 50Hz로 검출되면 B/G, I, D/K, L-시스템의 방송 방식의 주파수 밴드를 선택하는 수단임을 특징으로 하는 멀티 수신 복조 장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970001307A KR100200647B1 (ko) | 1997-01-17 | 1997-01-17 | 멀티 수신 복조장치 |
US09/008,103 US6166776A (en) | 1997-01-17 | 1998-01-16 | Multi-receiving demodulator for demodulating signals received from multiple broadcasting systems |
DE19801527A DE19801527C2 (de) | 1997-01-17 | 1998-01-16 | Vielsystem-Empfangsdemodulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970001307A KR100200647B1 (ko) | 1997-01-17 | 1997-01-17 | 멀티 수신 복조장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980066006A KR19980066006A (ko) | 1998-10-15 |
KR100200647B1 true KR100200647B1 (ko) | 1999-06-15 |
Family
ID=19494944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970001307A Expired - Fee Related KR100200647B1 (ko) | 1997-01-17 | 1997-01-17 | 멀티 수신 복조장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6166776A (ko) |
KR (1) | KR100200647B1 (ko) |
DE (1) | DE19801527C2 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6670997B1 (en) | 2000-11-15 | 2003-12-30 | Thomson Licensing S.A. | Autodetermination of appropriate television signal standard in a television signal receiver |
KR100484172B1 (ko) * | 2002-11-01 | 2005-04-19 | 삼성전자주식회사 | 싱글 튜너를 이용한 tv 및 fm 라디오 수신 장치 |
JP2008529397A (ja) * | 2005-01-28 | 2008-07-31 | エヌエックスピー ビー ヴィ | アナログテレビジョン及びディジタルテレビジョン双方の中間周波信号を処理するための中間周波処理装置 |
WO2006105691A1 (en) * | 2005-04-08 | 2006-10-12 | Mediatek (Shenzhen) Inc. | Automatic tv standard determination method and apparatus thereof |
KR100707826B1 (ko) * | 2006-06-05 | 2007-04-13 | 에스지씨테크놀로지 주식회사 | 멀티 밴드 패스필터 |
JP4879990B2 (ja) * | 2006-09-12 | 2012-02-22 | パナソニック株式会社 | 携帯端末装置 |
US8237870B2 (en) * | 2007-09-28 | 2012-08-07 | Intel Corporation | Receiver system for multiple bandwidth television channels |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688082A (en) * | 1984-05-23 | 1987-08-18 | Sharp Kabushiki Kaisha | Multi-system television receiver |
DE3737581A1 (de) * | 1987-11-05 | 1989-05-18 | Grundig Emv | Einrichtung zum automatischen anlegen der abgleichspannungen an die abstimmbaren schaltungselemente des zf-verstaerkers eines fernsehempfaengers |
DE4012580A1 (de) * | 1990-04-20 | 1991-10-24 | Philips Patentverwaltung | Schaltungsanordnung zur erkennung der uebertragungsnorm eines farbfernsehsignals |
WO1993017522A1 (en) * | 1992-02-20 | 1993-09-02 | Motorola Inc. | A modulator circuit |
DE4315230C2 (de) * | 1993-05-07 | 1996-03-21 | Grundig Emv | Fernsehempfänger zum Empfang und zur Wiedergabe von Fernsehsignalen mit unterschiedlichen Vertikalfrequenzen |
US5355162A (en) * | 1993-07-13 | 1994-10-11 | Pacific Ray Video Limited | Multi-standard cable television system |
US5572264A (en) * | 1994-02-14 | 1996-11-05 | Hitachi, Ltd. | High definition TV signal receiver |
KR0165289B1 (ko) * | 1994-06-09 | 1999-03-20 | 김광호 | 멀티 텔레비젼 방송신호 수신장치 및 그 제어방법 |
KR970007887B1 (en) * | 1994-11-30 | 1997-05-17 | Samsung Electronics Co Ltd | Tuner device for multi broadcasting receiver |
KR19980036764A (ko) * | 1996-11-19 | 1998-08-05 | 배순훈 | 방송수신시스템의 방송방식 자동절환제어장치 및 방법 |
-
1997
- 1997-01-17 KR KR1019970001307A patent/KR100200647B1/ko not_active Expired - Fee Related
-
1998
- 1998-01-16 US US09/008,103 patent/US6166776A/en not_active Expired - Lifetime
- 1998-01-16 DE DE19801527A patent/DE19801527C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19801527C2 (de) | 2003-10-02 |
DE19801527A1 (de) | 1998-07-23 |
US6166776A (en) | 2000-12-26 |
KR19980066006A (ko) | 1998-10-15 |
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