SE450679B - Anleggning for overforing av n-nivadatasignaler - Google Patents
Anleggning for overforing av n-nivadatasignalerInfo
- Publication number
- SE450679B SE450679B SE8001700A SE8001700A SE450679B SE 450679 B SE450679 B SE 450679B SE 8001700 A SE8001700 A SE 8001700A SE 8001700 A SE8001700 A SE 8001700A SE 450679 B SE450679 B SE 450679B
- Authority
- SE
- Sweden
- Prior art keywords
- signal
- level
- phase
- symbol
- level data
- Prior art date
Links
- 238000012546 transfer Methods 0.000 title description 9
- 230000008859 change Effects 0.000 claims description 36
- 238000010586 diagram Methods 0.000 description 43
- 238000001228 spectrum Methods 0.000 description 27
- 230000004044 response Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 17
- 230000006870 function Effects 0.000 description 13
- 238000005070 sampling Methods 0.000 description 9
- 230000003595 spectral effect Effects 0.000 description 9
- 230000014509 gene expression Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 5
- 239000000969 carrier Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 235000017274 Diospyros sandwicensis Nutrition 0.000 description 1
- 241000087799 Koma Species 0.000 description 1
- 241000282838 Lama Species 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
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010561 standard procedure 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
- H04L27/18—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
- H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
-
- 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
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2035—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using a single or unspecified number of carriers
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 |
|---|---|---|---|
| NL7901865A NL7901865A (nl) | 1979-03-08 | 1979-03-08 | Systeem voor multiniveau datatransmissie met behulp van een hoekgemoduleerde draaggolf van constante amplitude. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8001700L SE8001700L (sv) | 1980-09-09 |
| SE450679B true SE450679B (sv) | 1987-07-13 |
Family
ID=19832772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8001700A SE450679B (sv) | 1979-03-08 | 1980-03-05 | Anleggning for overforing av n-nivadatasignaler |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4320499A (da) |
| JP (1) | JPS55123263A (da) |
| AU (1) | AU530112B2 (da) |
| BE (1) | BE882111A (da) |
| BR (1) | BR8001323A (da) |
| CA (1) | CA1159112A (da) |
| CH (1) | CH650117A5 (da) |
| DE (1) | DE3008567C2 (da) |
| DK (1) | DK152240C (da) |
| FR (1) | FR2451136B1 (da) |
| GB (1) | GB2044048B (da) |
| IT (1) | IT1130303B (da) |
| NL (1) | NL7901865A (da) |
| SE (1) | SE450679B (da) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8102595A (nl) | 1981-05-27 | 1982-12-16 | Philips Nv | Ontvanger voor hoekgemoduleerde draaggolfsignalen. |
| US4509017A (en) * | 1981-09-28 | 1985-04-02 | E-Systems, Inc. | Method and apparatus for pulse angle modulation |
| FR2526617A1 (fr) * | 1982-05-10 | 1983-11-10 | Sintra Alcatel Sa | Systeme de transmission synchrone de donnees a l'aide d'une porteuse modulee d'amplitude d'enveloppe constante |
| US4706261A (en) * | 1982-08-13 | 1987-11-10 | Hazeltine Corporation | Differential phase modulation |
| US4752953A (en) * | 1983-05-27 | 1988-06-21 | M/A-Com Government Systems, Inc. | Digital audio scrambling system with pulse amplitude modulation |
| US4528526A (en) * | 1983-05-31 | 1985-07-09 | Motorola, Inc. | PSK modulator with noncollapsable output for use with a PLL power amplifier |
| US4672632A (en) * | 1984-02-03 | 1987-06-09 | Motorola, Inc. | Optimized communications system and method employing channel synthesis and phase lock detection |
| NL8402318A (nl) * | 1984-07-23 | 1986-02-17 | Philips Nv | Inrichting voor het genereren van een hoekgemoduleerd draaggolfsignaal van constante amplitude in responsie op datasignalen. |
| JPS61113346A (ja) * | 1984-11-08 | 1986-05-31 | Kyosan Electric Mfg Co Ltd | 位相偏移変調方式 |
| WO1987001535A1 (fr) * | 1985-08-30 | 1987-03-12 | Fujitsu Limited | Systeme de transmission des donnees par radio |
| US4737968A (en) * | 1985-10-25 | 1988-04-12 | Phillips Petroleum Company | QPSK transmission system having phaselocked tracking filter for spectrum shaping |
| EP0232626B1 (en) * | 1985-12-26 | 1993-02-10 | Matsushita Electric Industrial Co., Ltd. | Method of digital signal transmission having a low error rate in the presence of multipath transmission |
| US4742533A (en) * | 1987-01-02 | 1988-05-03 | Motorola, Inc. | Soft decision digital communication apparatus |
| CN103109482A (zh) | 2011-02-18 | 2013-05-15 | 松下电器产业株式会社 | 信号生成方法及信号生成装置 |
| KR102105322B1 (ko) * | 2013-06-17 | 2020-04-28 | 삼성전자주식회사 | 송신기 및 수신기, 무선 통신 방법 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3128342A (en) * | 1961-06-28 | 1964-04-07 | Bell Telephone Labor Inc | Phase-modulation transmitter |
| NL157472B (nl) * | 1968-10-02 | 1978-07-17 | Philips Nv | Ontvanger voor de ontvangst van in een voorgeschreven overdrachtsband gelegen informatiepulssignalen. |
| US3818135A (en) * | 1971-09-24 | 1974-06-18 | A Tannhauser | Circuitry for transmission of phase difference modulated data signals |
| JPS51144167A (en) * | 1975-06-04 | 1976-12-10 | Nec Corp | Digital phase modulation method |
-
1979
- 1979-03-08 NL NL7901865A patent/NL7901865A/nl not_active Application Discontinuation
-
1980
- 1980-02-28 CA CA000346636A patent/CA1159112A/en not_active Expired
- 1980-03-03 FR FR8004711A patent/FR2451136B1/fr not_active Expired
- 1980-03-05 DK DK095080A patent/DK152240C/da not_active IP Right Cessation
- 1980-03-05 BR BR8001323A patent/BR8001323A/pt unknown
- 1980-03-05 AU AU56167/80A patent/AU530112B2/en not_active Ceased
- 1980-03-05 IT IT20371/80A patent/IT1130303B/it active
- 1980-03-05 CH CH1749/80A patent/CH650117A5/de not_active IP Right Cessation
- 1980-03-05 GB GB8007491A patent/GB2044048B/en not_active Expired
- 1980-03-05 SE SE8001700A patent/SE450679B/sv not_active IP Right Cessation
- 1980-03-06 DE DE3008567A patent/DE3008567C2/de not_active Expired
- 1980-03-06 BE BE0/199697A patent/BE882111A/fr not_active IP Right Cessation
- 1980-03-08 JP JP2861680A patent/JPS55123263A/ja active Pending
- 1980-03-12 US US06/129,796 patent/US4320499A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2451136A1 (fr) | 1980-10-03 |
| GB2044048B (en) | 1983-04-20 |
| DE3008567C2 (de) | 1985-08-22 |
| JPS55123263A (en) | 1980-09-22 |
| DK152240C (da) | 1988-07-04 |
| DK152240B (da) | 1988-02-08 |
| BE882111A (fr) | 1980-09-08 |
| CA1159112A (en) | 1983-12-20 |
| GB2044048A (en) | 1980-10-08 |
| BR8001323A (pt) | 1980-11-04 |
| US4320499A (en) | 1982-03-16 |
| AU5616780A (en) | 1980-09-11 |
| NL7901865A (nl) | 1980-09-10 |
| FR2451136B1 (fr) | 1988-06-24 |
| DK95080A (da) | 1980-09-09 |
| CH650117A5 (de) | 1985-06-28 |
| DE3008567A1 (de) | 1980-09-18 |
| SE8001700L (sv) | 1980-09-09 |
| IT8020371A0 (it) | 1980-03-05 |
| IT1130303B (it) | 1986-06-11 |
| AU530112B2 (en) | 1983-06-30 |
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