NO303370B1 - Demodulasjon av et modulert signal - Google Patents
Demodulasjon av et modulert signal Download PDFInfo
- Publication number
- NO303370B1 NO303370B1 NO912819A NO912819A NO303370B1 NO 303370 B1 NO303370 B1 NO 303370B1 NO 912819 A NO912819 A NO 912819A NO 912819 A NO912819 A NO 912819A NO 303370 B1 NO303370 B1 NO 303370B1
- Authority
- NO
- Norway
- Prior art keywords
- phase
- condition
- voltage
- clock signal
- ldc
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims description 113
- 238000000034 method Methods 0.000 claims description 40
- 230000010363 phase shift Effects 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 7
- 230000018199 S phase Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000012935 Averaging Methods 0.000 claims 2
- 230000008569 process Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 15
- 230000001360 synchronised effect Effects 0.000 description 13
- 230000003111 delayed effect Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000003750 conditioning effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 102100036848 C-C motif chemokine 20 Human genes 0.000 description 1
- 101001139126 Homo sapiens Krueppel-like factor 6 Proteins 0.000 description 1
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
- H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19109490 | 1990-07-19 | ||
| JP11057591A JP2679889B2 (ja) | 1990-07-19 | 1991-05-15 | 無線通信装置及びその装置の受信制御方式 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO912819D0 NO912819D0 (no) | 1991-07-18 |
| NO912819L NO912819L (no) | 1992-01-20 |
| NO303370B1 true NO303370B1 (no) | 1998-06-29 |
Family
ID=26450179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO912819A NO303370B1 (no) | 1990-07-19 | 1991-07-18 | Demodulasjon av et modulert signal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5111152A (fr) |
| EP (1) | EP0467306B1 (fr) |
| JP (1) | JP2679889B2 (fr) |
| KR (1) | KR950005162B1 (fr) |
| CA (1) | CA2047308C (fr) |
| DE (1) | DE69126071T2 (fr) |
| NO (1) | NO303370B1 (fr) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2692420A1 (fr) * | 1992-06-11 | 1993-12-17 | Sgs Thomson Microelectronics | Procédé et dispositif d'asservissement en fréquence et phase d'un oscillateur. |
| DE4221476A1 (de) * | 1992-06-30 | 1994-01-05 | Siemens Ag | Verfahren und Anordnung zur Regeneration eines Binärsignals |
| JP2639326B2 (ja) * | 1993-11-30 | 1997-08-13 | 日本電気株式会社 | 四値ｆｓｋ受信機 |
| US5453715A (en) * | 1994-08-15 | 1995-09-26 | Motorola, Inc. | Communication device with efficient multi-level digital demodulator |
| KR0178750B1 (ko) * | 1996-02-13 | 1999-05-15 | 김광호 | 전-디지탈 심볼타이밍 복구장치 |
| GB2322042B (en) * | 1997-02-05 | 2002-02-06 | Ericsson Telefon Ab L M | Radio architecture |
| US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
| US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
| US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
| US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
| US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
| US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
| US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
| US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
| US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
| US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
| US6813485B2 (en) | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
| US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
| US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
| US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
| JP3179429B2 (ja) * | 1999-01-29 | 2001-06-25 | 日本電気アイシーマイコンシステム株式会社 | 周波数測定用テスト回路及びそれを備えた半導体集積回路 |
| US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
| US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
| US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
| US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
| US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
| US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
| US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
| US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
| DE60226978D1 (de) * | 2001-06-27 | 2008-07-17 | Sony Corp | Integrierte schaltungseinrichtung, informationsverarbeitungseinrichtung, informationsaufzeichnungseinrichtungsspeicher-verwaltungsverfahren, mobilendgeräteeinrichtung, integrierte halbleiterschaltungseinrichtung und kommunikationsverfahren mit tragbarem endgerät |
| US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
| JP2003229920A (ja) * | 2002-02-01 | 2003-08-15 | General Res Of Electronics Inc | Ｆｓｋ復調信号の中心レベル検出補正回路 |
| US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
| US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
| JP4888393B2 (ja) | 2005-09-28 | 2012-02-29 | 日本電気株式会社 | クロック再生装置及び方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60183862A (ja) * | 1984-03-02 | 1985-09-19 | Toshiba Corp | デイジタル信号処理回路 |
| NL8603110A (nl) * | 1986-12-08 | 1988-07-01 | Philips Nv | Schakeling voor het terugwinnen van een draaggolf. |
| EP0296253B1 (fr) * | 1987-01-12 | 1995-06-28 | Fujitsu Limited | Circuit de commande de la temporisation de discrimination |
| JPH01240024A (ja) * | 1988-03-22 | 1989-09-25 | Nippon Telegr & Teleph Corp <Ntt> | クロック再生回路 |
| US5001724A (en) * | 1989-01-13 | 1991-03-19 | Hewlett-Packard Company | Method and apparatus for measuring phase accuracy and amplitude profile of a continuous-phase-modulated signal |
| US4887050A (en) * | 1989-03-31 | 1989-12-12 | Motorola, Inc. | Frequency control apparatus and method for a digital radio receiver |
-
1991
- 1991-05-15 JP JP11057591A patent/JP2679889B2/ja not_active Expired - Fee Related
- 1991-07-16 US US07/730,474 patent/US5111152A/en not_active Expired - Fee Related
- 1991-07-16 EP EP91111869A patent/EP0467306B1/fr not_active Expired - Lifetime
- 1991-07-16 DE DE69126071T patent/DE69126071T2/de not_active Expired - Fee Related
- 1991-07-17 CA CA002047308A patent/CA2047308C/fr not_active Expired - Fee Related
- 1991-07-18 NO NO912819A patent/NO303370B1/no not_active IP Right Cessation
- 1991-07-19 KR KR1019910012348A patent/KR950005162B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US5111152A (en) | 1992-05-05 |
| DE69126071T2 (de) | 1997-08-28 |
| KR950005162B1 (ko) | 1995-05-19 |
| DE69126071D1 (de) | 1997-06-19 |
| EP0467306A3 (en) | 1993-06-02 |
| EP0467306B1 (fr) | 1997-05-14 |
| CA2047308A1 (fr) | 1992-01-20 |
| CA2047308C (fr) | 1997-05-06 |
| JPH04229750A (ja) | 1992-08-19 |
| EP0467306A2 (fr) | 1992-01-22 |
| NO912819D0 (no) | 1991-07-18 |
| JP2679889B2 (ja) | 1997-11-19 |
| NO912819L (no) | 1992-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN JANUARY 2003 |