JP2001502514A - 非対称側波帯を有する変調キャリヤの受信 - Google Patents
非対称側波帯を有する変調キャリヤの受信Info
- Publication number
- JP2001502514A JP2001502514A JP11509570A JP50957099A JP2001502514A JP 2001502514 A JP2001502514 A JP 2001502514A JP 11509570 A JP11509570 A JP 11509570A JP 50957099 A JP50957099 A JP 50957099A JP 2001502514 A JP2001502514 A JP 2001502514A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- vector
- baseband signal
- receiver
- frequency
- 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.)
- Pending
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
- H04N5/4446—IF amplifier circuits specially adapted for B&W TV
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
-
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
-
- 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
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
- Amplitude Modulation (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.非対称側波帯(LSB,USB)を有する変調キャリヤ(MC)を受ける受 信機において、 前記変調キャリヤ(MC)からベクトルベースバンド信号(VB)を得る同期 復調器(SDEM)と、 前記ベクトルベースバンド信号(VB)をフィルタ処理し、前記側波帯非対称 を補正するフィルタ(FILT)とを具えることを特徴とする受信機。 2.請求の範囲1に記載の受信機において、前記変調キャリヤ(MC)を前記同 期復調器(SDEM)に時間離散的な形態において供給する標本化回路(S&H )を具えることを特徴とする受信機。 3.請求の範囲2に記載の受信機において、前記フィルタ(FILT)を、 前記変調キャリヤの位相直角変調成分に対応する前記ベクトルベースバンド信 号(VB)の成分(BQ)を、交互にゼロ係数を有する反対称有限インパルス応 答(H(z))にしたがってフィルタ処理し、 前記変調キャリヤの同相変調成分に対応する前記ベクトルベースバンド信号( VB)の成分(BI)を、前記反対称有限インパルス応答(H(z))における反 対称の点に対応する程度に遅延させ、 前記ベクトルベースバンド信号のフィルタ処理された成分(BQfil)およ び遅延された成分(BIdel)の一次結合を形成し、この一次結合が出力信号 (So=x・BIdel+y・BQfil)を形成するように配置することを特 徴とする受信機。 4.非対称側波帯(LSB,USB)を有する変調キャリヤ(MC)を受ける方 法において、 前記変調キャリヤ(MC)からベクトルベースバンド信号(VB)を同期復調 (SDEM)によって得るステップと、 前記ベクトルベースバンド信号(VB)をフィルタ処理し、前記側波帯非対称 を補正するステップとを具えることを特徴とする方法。 5.非対称側波帯を有する変調キャリヤ(MC)を処理する集積回路(IC)に おいて、 前記変調キャリヤ(MC)からベクトルベースバンド信号(VB)を得る同期 復調器(SDEM)と、 前記ベクトルベースバンド信号(VB)をフィルタ処理し、前記側波帯非対称 を補正するフィルタ(FILT)とを具えることを特徴とする集積回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97202340.2 | 1997-07-25 | ||
EP97202340 | 1997-07-25 | ||
PCT/IB1998/000993 WO1999005861A2 (en) | 1997-07-25 | 1998-06-29 | Reception of modulated carriers having asymmetrical sidebands |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001502514A true JP2001502514A (ja) | 2001-02-20 |
Family
ID=8228594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11509570A Pending JP2001502514A (ja) | 1997-07-25 | 1998-06-29 | 非対称側波帯を有する変調キャリヤの受信 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6324233B1 (ja) |
EP (1) | EP0934652B1 (ja) |
JP (1) | JP2001502514A (ja) |
KR (1) | KR100607837B1 (ja) |
DE (1) | DE69809384T2 (ja) |
WO (1) | WO1999005861A2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6658066B1 (en) * | 2000-02-17 | 2003-12-02 | Skyworks Solutions, Inc. | Method and apparatus for multiple phase splitting for dual band IQ subharmonic mixer |
WO2002001858A2 (en) | 2000-06-29 | 2002-01-03 | Koninklijke Philips Electronics N.V. | Television signal receiver |
CN1572107A (zh) * | 2001-10-16 | 2005-01-26 | Rf信息公司 | 在单片集成电路中实现接收机功能的方法与装置 |
US7199844B2 (en) * | 2002-05-28 | 2007-04-03 | Rfstream Corporation | Quadratic nyquist slope filter |
AU2003249666A1 (en) * | 2002-05-29 | 2003-12-19 | Ukom, Inc. | Methods and apparatus for tuning using successive aproximation |
US7116961B2 (en) * | 2002-05-29 | 2006-10-03 | Rfstream Corporation | Image rejection quadratic filter |
JP2005535161A (ja) * | 2002-06-05 | 2005-11-17 | 株式会社RfStream | ベースバンド・ナイキスト・フィルタによる二次映像復調 |
US6882245B2 (en) * | 2002-06-05 | 2005-04-19 | Rf Stream Corporation | Frequency discrete LC filter bank |
JP2005532000A (ja) * | 2002-07-04 | 2005-10-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | チューニング装置 |
US6940365B2 (en) | 2003-07-18 | 2005-09-06 | Rfstream Corporation | Methods and apparatus for an improved discrete LC filter |
US7446631B2 (en) * | 2005-03-11 | 2008-11-04 | Rf Stream Corporation | Radio frequency inductive-capacitive filter circuit topology |
US7358795B2 (en) | 2005-03-11 | 2008-04-15 | Rfstream Corporation | MOSFET temperature compensation current source |
US7928808B2 (en) * | 2008-11-25 | 2011-04-19 | Raytheon Canada Limited | Selectable local oscillator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4263611A (en) * | 1979-08-29 | 1981-04-21 | Rca Corporation | Television signal processing system |
US4716464A (en) * | 1986-04-30 | 1987-12-29 | Rca Corporation | Single channel if for video and audio |
US4870480A (en) * | 1988-06-13 | 1989-09-26 | Rca Licensing Corporation | Subnyquist demodulator as for a television receiver |
FR2656187A1 (fr) * | 1989-12-14 | 1991-06-21 | Thomson Lgt | Procede et dispositif de demodulation d'un signal de television module en amplitude, a bande laterale reduite. |
US5103310A (en) * | 1990-07-20 | 1992-04-07 | General Electric Company | Interference reduction for extra-spectrum, compatible television system |
US5298982A (en) * | 1992-09-16 | 1994-03-29 | Lagoni William A | Television receiver with switchable chrominance signal filter |
JPH0744473B2 (ja) * | 1993-02-02 | 1995-05-15 | 日本電気株式会社 | 復調システム |
KR0125113B1 (ko) | 1993-02-02 | 1997-12-11 | 모리시타 요이찌 | 불휘발성 반도체 메모리 집적장치 및 그 제조방법 |
-
1998
- 1998-06-29 KR KR1019997002514A patent/KR100607837B1/ko not_active IP Right Cessation
- 1998-06-29 WO PCT/IB1998/000993 patent/WO1999005861A2/en active IP Right Grant
- 1998-06-29 JP JP11509570A patent/JP2001502514A/ja active Pending
- 1998-06-29 EP EP98925880A patent/EP0934652B1/en not_active Expired - Lifetime
- 1998-06-29 DE DE69809384T patent/DE69809384T2/de not_active Expired - Fee Related
- 1998-07-22 US US09/120,625 patent/US6324233B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6324233B1 (en) | 2001-11-27 |
EP0934652B1 (en) | 2002-11-13 |
WO1999005861A2 (en) | 1999-02-04 |
WO1999005861A3 (en) | 1999-04-15 |
DE69809384T2 (de) | 2003-07-10 |
KR100607837B1 (ko) | 2006-08-04 |
KR20000068627A (ko) | 2000-11-25 |
EP0934652A2 (en) | 1999-08-11 |
DE69809384D1 (de) | 2002-12-19 |
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