DE3012905C2 - Schaltungsanordnung zur Trägerrückgewinnung in einem Datenmodem - Google Patents
Schaltungsanordnung zur Trägerrückgewinnung in einem DatenmodemInfo
- Publication number
- DE3012905C2 DE3012905C2 DE3012905A DE3012905A DE3012905C2 DE 3012905 C2 DE3012905 C2 DE 3012905C2 DE 3012905 A DE3012905 A DE 3012905A DE 3012905 A DE3012905 A DE 3012905A DE 3012905 C2 DE3012905 C2 DE 3012905C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- arrangement
- signals
- complex
- generating
- 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
- 238000011084 recovery Methods 0.000 title claims description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/027,982 US4283682A (en) | 1979-04-06 | 1979-04-06 | Erasure zone decision feedback phase lock loop for carrier recovery in data modems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3012905A1 DE3012905A1 (de) | 1980-10-09 |
| DE3012905C2 true DE3012905C2 (de) | 1987-01-29 |
Family
ID=21840910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3012905A Expired DE3012905C2 (de) | 1979-04-06 | 1980-04-02 | Schaltungsanordnung zur Trägerrückgewinnung in einem Datenmodem |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4283682A (US07223432-20070529-C00017.png) |
| JP (1) | JPS55134564A (US07223432-20070529-C00017.png) |
| DE (1) | DE3012905C2 (US07223432-20070529-C00017.png) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ198844A (en) * | 1980-11-14 | 1984-05-31 | Plessey Overseas | Digital information transmission: two dimensional code |
| US4556866A (en) * | 1983-03-16 | 1985-12-03 | Honeywell Inc. | Power line carrier FSK data system |
| US4648100A (en) * | 1985-03-28 | 1987-03-03 | At&T Bell Laboratories | Carrier recovery circuit |
| CA1282127C (en) * | 1985-06-29 | 1991-03-26 | Nec Corporation | Digital demodulation system |
| JPS6387828A (ja) * | 1986-09-30 | 1988-04-19 | Nec Corp | デイジタル復調システム |
| JP2927929B2 (ja) * | 1990-10-29 | 1999-07-28 | 日本電気株式会社 | 搬送波同期回路 |
| FR2674709A1 (fr) * | 1991-03-29 | 1992-10-02 | Philips Electronique Lab | Decodeur multietages. |
| AU1841895A (en) * | 1994-02-15 | 1995-08-29 | Rambus Inc. | Delay-locked loop |
| EP0754379B1 (en) * | 1994-04-08 | 2002-09-18 | Echelon Corporation | Method and apparatus for robust communications based upon angular modulation |
| EP0692896A1 (fr) * | 1994-07-12 | 1996-01-17 | Laboratoires D'electronique Philips S.A.S. | Recupération de porteuse pour signaux MAQ |
| FR2733107A1 (fr) * | 1995-04-12 | 1996-10-18 | Philips Electronique Lab | Systeme de transmission numerique de donnees comportant un recepteur synchronise numeriquement |
| FR2722630A1 (fr) * | 1994-07-12 | 1996-01-19 | Philips Electronique Lab | Systeme de transmission numerique comportant un recepteur muni d'un dispositif de recuperation de porteuse |
| FR2805109A1 (fr) * | 2000-02-15 | 2001-08-17 | Koninkl Philips Electronics Nv | Estimation de phase pour modulation psk en presence d'un decalage en frequence |
| US7233634B1 (en) * | 2003-03-27 | 2007-06-19 | Nortel Networks Limited | Maximum likelihood decoding |
| US8976904B2 (en) * | 2012-09-28 | 2015-03-10 | Intel Corporation | Automated erasure slicer threshold control and modification of symbol estimates to be erased |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3710261A (en) * | 1970-12-24 | 1973-01-09 | G Low | Data-aided carrier tracking loops |
| US3806815A (en) * | 1973-03-06 | 1974-04-23 | Nasa | Decision feedback loop for tracking a polyphase modulated carrier |
| FR2335109A1 (fr) * | 1975-12-09 | 1977-07-08 | Ibm France | Procede et dispositif de detection statistique de donnees |
| CH604425A5 (US07223432-20070529-C00017.png) * | 1975-12-31 | 1978-09-15 | Ibm | |
| US4054838A (en) * | 1976-04-19 | 1977-10-18 | Rixon, Inc. | QAM phase jitter and frequency offset correction system |
| FR2366752A2 (fr) * | 1976-09-30 | 1978-04-28 | Trt Telecom Radio Electr | Dispositif detecteur de derangement d'un systeme de transmission de donnees utilisant la modulation de phase |
-
1979
- 1979-04-06 US US06/027,982 patent/US4283682A/en not_active Expired - Lifetime
-
1980
- 1980-04-02 DE DE3012905A patent/DE3012905C2/de not_active Expired
- 1980-04-04 JP JP4454880A patent/JPS55134564A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55134564A (en) | 1980-10-20 |
| DE3012905A1 (de) | 1980-10-09 |
| US4283682A (en) | 1981-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |