CA1235755A - Carrier reproducing circuit for phase shift keying signals - Google Patents
Carrier reproducing circuit for phase shift keying signalsInfo
- Publication number
- CA1235755A CA1235755A CA000486359A CA486359A CA1235755A CA 1235755 A CA1235755 A CA 1235755A CA 000486359 A CA000486359 A CA 000486359A CA 486359 A CA486359 A CA 486359A CA 1235755 A CA1235755 A CA 1235755A
- Authority
- CA
- Canada
- Prior art keywords
- frequency
- carrier
- data
- voltage
- signal
- 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
Links
- 230000010363 phase shift Effects 0.000 title description 6
- 238000012937 correction Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 230000005236 sound signal Effects 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical compound C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
- H03K9/04—Demodulating pulses which have been modulated with a continuously-variable signal of position-modulated pulses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2272—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals using phase locked loops
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59141472A JPS6121660A (ja) | 1984-07-10 | 1984-07-10 | 搬送波再生回路 |
| JP141472/84 | 1984-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1235755A true CA1235755A (en) | 1988-04-26 |
Family
ID=15292678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000486359A Expired CA1235755A (en) | 1984-07-10 | 1985-07-05 | Carrier reproducing circuit for phase shift keying signals |
Country Status (6)
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712221A (en) * | 1986-08-29 | 1987-12-08 | International Business Machines Corporation | Carrier recovery of modulated signals |
| GB2202715B (en) * | 1987-03-24 | 1991-03-20 | Dr Frank Robert Connor | Minimum relative shift keying |
| US4811424A (en) * | 1987-04-24 | 1989-03-07 | Bell Communications Research, Inc. | Rapid phase correcting carrier recovery circuit |
| US4953186A (en) * | 1988-02-19 | 1990-08-28 | Silicon Systems, Inc. | Phase jitter tracker |
| US5003621A (en) * | 1989-11-02 | 1991-03-26 | Motorola, Inc. | Direct conversion FM receiver |
| DE4102800A1 (de) * | 1991-01-31 | 1992-08-06 | Thomson Brandt Gmbh | Phasenregelkreis mit nachlaufsynchronisation |
| DE19513080C1 (de) * | 1995-04-07 | 1996-11-14 | Bosch Gmbh Robert | Demodulator für orthogonal modulierte Trägersignale |
| DE19614979C2 (de) | 1995-04-20 | 2001-05-17 | Fujitsu Ltd | Hochfrequenz-Sende-Empfangs-Vorrichtung zur Datenkommunikation |
| DE19517405A1 (de) * | 1995-05-16 | 1996-11-21 | Thomson Brandt Gmbh | Signalverarbeitungssystem für digitale Signale |
| GB2303278B (en) * | 1995-07-11 | 2000-04-26 | Remo Giovanni Andrea Marzolini | Improvements to demodulation systems |
| JP3556047B2 (ja) * | 1996-05-22 | 2004-08-18 | 三菱電機株式会社 | ディジタル放送受信機 |
| US5949472A (en) * | 1996-12-10 | 1999-09-07 | Intel Corporation | Method and apparatus for tuning channels for CATV and television applications |
| EP1188306A2 (en) * | 1999-12-01 | 2002-03-20 | Koninklijke Philips Electronics N.V. | Tuner alignment |
| CA2442821C (en) * | 2001-03-30 | 2016-08-16 | Advanced Metering Data Systems, L.L.C. | Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks |
| US6687294B2 (en) * | 2001-04-27 | 2004-02-03 | Koninklijke Philips Electronics N.V. | Distortion quantizer model for video encoding |
| JP2005004451A (ja) * | 2003-06-11 | 2005-01-06 | Nec Electronics Corp | スペクトラム拡散クロック発生装置 |
| JP2005354256A (ja) * | 2004-06-09 | 2005-12-22 | Fujitsu Ltd | クロックジェネレータ、およびその制御方法 |
| JP4562647B2 (ja) * | 2005-11-30 | 2010-10-13 | アイコム株式会社 | クロック信号発生装置、クロック信号発生方法及びプログラム |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3845412A (en) * | 1973-10-12 | 1974-10-29 | Microwave Ass Inc | Digital modulate/demodulate system |
| JPS5435908B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-08-29 | 1979-11-06 | ||
| IT1119567B (it) * | 1979-11-08 | 1986-03-10 | Cselt Centro Studi Lab Telecom | Equalizzatore numerico adattativo per ricevitori di segnali dati utilizzanti una modulazione differenziale di fase |
| US4525676A (en) * | 1981-02-24 | 1985-06-25 | Nippon Electric Co., Ltd. | PSK Demodulation system having carrier frequency variation compensation |
| DE3272570D1 (en) * | 1981-08-10 | 1986-09-18 | Fujitsu Ltd | Carrier recovery circuit |
-
1984
- 1984-07-10 JP JP59141472A patent/JPS6121660A/ja active Pending
-
1985
- 1985-06-05 KR KR1019850003945A patent/KR900008437B1/ko not_active Expired
- 1985-07-02 US US06/751,236 patent/US4639682A/en not_active Expired - Lifetime
- 1985-07-05 GB GB08517075A patent/GB2161678B/en not_active Expired
- 1985-07-05 CA CA000486359A patent/CA1235755A/en not_active Expired
- 1985-07-05 DE DE19853524145 patent/DE3524145A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2161678B (en) | 1988-06-29 |
| GB8517075D0 (en) | 1985-08-14 |
| DE3524145C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-08-06 |
| KR900008437B1 (ko) | 1990-11-20 |
| GB2161678A (en) | 1986-01-15 |
| DE3524145A1 (de) | 1986-01-23 |
| US4639682A (en) | 1987-01-27 |
| JPS6121660A (ja) | 1986-01-30 |
| KR860001640A (ko) | 1986-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |