DE69930681D1 - Abstimmbarer Demodulator für digital modulierte RF-Signale - Google Patents
Abstimmbarer Demodulator für digital modulierte RF-SignaleInfo
- Publication number
- DE69930681D1 DE69930681D1 DE69930681T DE69930681T DE69930681D1 DE 69930681 D1 DE69930681 D1 DE 69930681D1 DE 69930681 T DE69930681 T DE 69930681T DE 69930681 T DE69930681 T DE 69930681T DE 69930681 D1 DE69930681 D1 DE 69930681D1
- Authority
- DE
- Germany
- Prior art keywords
- signals
- digitally modulated
- tunable demodulator
- tunable
- demodulator
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
- H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
-
- 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
- H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
- H03B2202/08—Reduction of undesired oscillations originated from the oscillator in circuit elements external to the oscillator by means associated with the oscillator
- H03B2202/082—Reduction of undesired oscillations originated from the oscillator in circuit elements external to the oscillator by means associated with the oscillator by avoiding coupling between these circuit elements
- H03B2202/084—Reduction of undesired oscillations originated from the oscillator in circuit elements external to the oscillator by means associated with the oscillator by avoiding coupling between these circuit elements through shielding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1109498 | 1998-01-23 | ||
JP1109498 | 1998-01-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69930681D1 true DE69930681D1 (de) | 2006-05-18 |
DE69930681T2 DE69930681T2 (de) | 2006-08-31 |
Family
ID=11768419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69930681T Expired - Fee Related DE69930681T2 (de) | 1998-01-23 | 1999-01-21 | Abstimmbarer Demodulator für digital modulierte RF-Signale |
Country Status (4)
Country | Link |
---|---|
US (1) | US6668025B1 (de) |
EP (1) | EP0932252B1 (de) |
CN (1) | CN1167236C (de) |
DE (1) | DE69930681T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4747409B2 (ja) * | 2000-11-09 | 2011-08-17 | ソニー株式会社 | 受信装置 |
JP2002325028A (ja) * | 2001-04-26 | 2002-11-08 | General Res Of Electronics Inc | 周波数走査形受信機 |
US20030060160A1 (en) * | 2001-09-21 | 2003-03-27 | Xiaojuen Yuan | Subharmonic carrier-canceling baseband/K upconverter system |
BRPI0215280B1 (pt) * | 2001-12-21 | 2016-07-26 | Thomson Licensing Sa | método e aparelho para determinar a configuração de entrada de sinal, em um aparelho de comutação de múltiplos sinais de rf, usado em conjunto com receptores de rf, que são usados em sistemas de televisão via satélite |
JP3092726U (ja) | 2002-09-11 | 2003-03-28 | アルプス電気株式会社 | テレビジョンチューナ |
US6982670B2 (en) * | 2003-06-04 | 2006-01-03 | Farrokh Mohamadi | Phase management for beam-forming applications |
US7787829B1 (en) * | 2003-12-23 | 2010-08-31 | Cypress Semiconductor Corporation | Method and apparatus for tuning a radio receiver with a radio transmitter |
US7376408B2 (en) * | 2004-08-10 | 2008-05-20 | Sony Ericsson Mobile Communications Ab | Reduction of near field electro-magnetic scattering using high impedance metallization terminations |
US7746922B2 (en) * | 2005-12-07 | 2010-06-29 | Cypress Semiconductor Corporation | Apparatus and method for frequency calibration between two radios |
US7899137B2 (en) * | 2006-10-12 | 2011-03-01 | Mediatek Inc. | Mobile communication system with integrated GPS receiver |
US8749038B2 (en) * | 2008-01-25 | 2014-06-10 | Azurewave Technologies, Inc. | Substrate module having an embedded phase-locked loop, integerated system using the same, and fabricating method thereof |
JP2011035557A (ja) * | 2009-07-30 | 2011-02-17 | Panasonic Corp | シンボルレート検出器及び受信装置 |
JP2013058904A (ja) * | 2011-09-08 | 2013-03-28 | Alps Electric Co Ltd | 位相同期回路及びテレビジョン信号受信回路 |
CN103326190B (zh) * | 2013-06-03 | 2016-03-02 | 华为终端有限公司 | 射频同轴连接器的屏蔽结构及具有该屏蔽结构的机顶盒 |
US9510289B1 (en) * | 2015-11-05 | 2016-11-29 | Silicon Laboratories, Inc. | In system calibration of wake up timer |
CN112467375B (zh) * | 2018-06-11 | 2022-09-09 | 深圳迈睿智能科技有限公司 | 具有抗干扰设置的天线及其制造方法 |
EP3672070A1 (de) * | 2018-12-19 | 2020-06-24 | Nxp B.V. | Kommunikationsvorrichtung und verfahren zum betrieb einer kommunikationsvorrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192104A (en) * | 1986-06-27 | 1987-12-31 | Philips Electronic Associated | Superheterodyne radio receiver |
CH671856A5 (de) * | 1986-09-05 | 1989-09-29 | Ascom Radiocom Ag | |
JP2559005B2 (ja) * | 1993-01-07 | 1996-11-27 | 松下電器産業株式会社 | ダブルスーパーチューナ |
US5428837A (en) * | 1993-01-13 | 1995-06-27 | Anadigics, Inc. | Method and apparatus for reducing local oscillator leakage in integrated circuit receivers |
US5406587A (en) * | 1993-02-08 | 1995-04-11 | Zenith Electronics Corporation | Error tracking loop |
JP3153711B2 (ja) * | 1994-07-27 | 2001-04-09 | シャープ株式会社 | アップダウンチューナ |
KR0157531B1 (ko) * | 1995-07-14 | 1998-11-16 | 김광호 | 텔레비젼신호 수신기에서 디지탈 반송파 복구 장치 및 방법 |
US5901184A (en) * | 1997-06-18 | 1999-05-04 | Lsi Logic Corporation | Extended range voltage controlled oscillator for frequency synthesis in a satellite receiver |
US6445907B1 (en) * | 1998-04-16 | 2002-09-03 | Hughes Electronics Corporation | Method and system for remote diagnostics of a satellite receiver |
-
1999
- 1999-01-21 DE DE69930681T patent/DE69930681T2/de not_active Expired - Fee Related
- 1999-01-21 EP EP99300451A patent/EP0932252B1/de not_active Expired - Lifetime
- 1999-01-22 CN CNB991012658A patent/CN1167236C/zh not_active Expired - Fee Related
- 1999-01-25 US US09/236,419 patent/US6668025B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1167236C (zh) | 2004-09-15 |
EP0932252A3 (de) | 1999-12-08 |
CN1228001A (zh) | 1999-09-08 |
EP0932252B1 (de) | 2006-04-05 |
US6668025B1 (en) | 2003-12-23 |
DE69930681T2 (de) | 2006-08-31 |
EP0932252A2 (de) | 1999-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PANASONIC CORP., KADOMA, OSAKA, JP |
|
8339 | Ceased/non-payment of the annual fee |