BE849924A - Fasediscriminator in een ontvanger van een datatransmissiesysteem - Google Patents
Fasediscriminator in een ontvanger van een datatransmissiesysteemInfo
- Publication number
- BE849924A BE849924A BE173696A BE173696A BE849924A BE 849924 A BE849924 A BE 849924A BE 173696 A BE173696 A BE 173696A BE 173696 A BE173696 A BE 173696A BE 849924 A BE849924 A BE 849924A
- Authority
- BE
- Belgium
- Prior art keywords
- een
- ontvanger
- fasediscriminator
- datatransmissiesysteem
- van
- Prior art date
Links
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
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0053—Closed loops
- H04L2027/0057—Closed loops quadrature phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0067—Phase error detectors
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 |
---|---|---|---|
FR7539962A FR2337468A1 (fr) | 1975-12-29 | 1975-12-29 | Discriminateur de phase pour recepteur d'un systeme de transmission de donnees |
Publications (1)
Publication Number | Publication Date |
---|---|
BE849924A true BE849924A (fr) | 1977-06-28 |
Family
ID=9164255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE173696A BE849924A (fr) | 1975-12-29 | 1976-12-28 | Fasediscriminator in een ontvanger van een datatransmissiesysteem |
Country Status (10)
Country | Link |
---|---|
US (1) | US4174489A (de) |
JP (1) | JPS5283053A (de) |
AU (1) | AU503350B2 (de) |
BE (1) | BE849924A (de) |
CA (1) | CA1099350A (de) |
DE (1) | DE2656924C3 (de) |
FR (1) | FR2337468A1 (de) |
GB (1) | GB1539749A (de) |
NL (1) | NL173005C (de) |
SE (1) | SE414855B (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2367386A1 (fr) | 1976-10-06 | 1978-05-05 | Trt Telecom Radio Electr | Dispositif de resynchronisation automatique d'un recepteur pour transmission de donnees |
JPS5365050A (en) * | 1976-11-24 | 1978-06-10 | Nec Corp | Demodulating system for phase modulation data signal |
FR2454233B1 (fr) * | 1979-04-11 | 1986-01-24 | Materiel Telephonique | Demodulateur stochastique pour signaux modules en sauts de phase, fonctionnant en temps partage sur plusieurs canaux |
US4247943A (en) * | 1979-05-21 | 1981-01-27 | Northrop Corporation | Piecewise coherent, combined frequency and phase-shift-keyed signal demodulator |
WO1984002819A1 (en) * | 1983-01-12 | 1984-07-19 | Ncr Co | Circuit for reducing errors in a data receiver |
US4514697A (en) * | 1983-02-09 | 1985-04-30 | Westinghouse Electric Corp. | Coherent phase shift keyed demodulator with improved sampling apparatus and method |
DE3421084A1 (de) * | 1983-06-06 | 1984-12-13 | Ricoh Co., Ltd., Tokio/Tokyo | Symbolentscheidungsverfahren |
JPH0821963B2 (ja) * | 1984-11-19 | 1996-03-04 | ソニー株式会社 | 周波数検出装置 |
JPH0338418Y2 (de) * | 1985-07-12 | 1991-08-14 | ||
JP3205111B2 (ja) * | 1993-02-18 | 2001-09-04 | 富士通株式会社 | 変復調装置 |
FR2741221B1 (fr) * | 1995-11-13 | 1997-12-05 | Alcatel Telspace | Etage de demodulation directe d'un signal module en quadrature de phase et recepteur comprenant un tel etage de demodulation |
FR2780590B1 (fr) | 1998-06-29 | 2000-10-06 | Sgs Thomson Microelectronics | Demodulateur qpsk a entree en frequence intermediaire |
US7239431B2 (en) * | 2001-04-04 | 2007-07-03 | Agere Systems Inc. | System and method for recovering primary channel operation in a facsimile receiver and facsimile machine incorporating the same |
FR2849726B1 (fr) * | 2003-01-06 | 2005-02-25 | Thomson Licensing Sa | Dispositif de filtrage tres selectif et procede de filtrage correspondant |
US7929630B2 (en) * | 2006-09-11 | 2011-04-19 | Symbol Technologies, Inc. | Adaptive RFID receiver for QAM signals |
CN111487476B (zh) * | 2020-05-06 | 2022-07-08 | 深圳市鼎阳科技股份有限公司 | 一种准峰值检波方法和准峰值检波器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1129180B (de) * | 1961-03-30 | 1962-05-10 | Telefunken Patent | Empfangseinrichtung fuer Impulsuebertragung durch quantisierte Phasenmodulation eines Traegers |
US3598974A (en) * | 1967-09-15 | 1971-08-10 | Sperry Rand Corp | Programmable digital differential analyzer integrator |
-
1975
- 1975-12-29 FR FR7539962A patent/FR2337468A1/fr active Granted
-
1976
- 1976-12-16 DE DE2656924A patent/DE2656924C3/de not_active Expired
- 1976-12-20 CA CA268,278A patent/CA1099350A/en not_active Expired
- 1976-12-24 GB GB54059/76A patent/GB1539749A/en not_active Expired
- 1976-12-24 AU AU20910/76A patent/AU503350B2/en not_active Expired
- 1976-12-27 NL NLAANVRAGE7614427,A patent/NL173005C/xx active
- 1976-12-27 SE SE7614542A patent/SE414855B/xx not_active IP Right Cessation
- 1976-12-28 BE BE173696A patent/BE849924A/xx not_active IP Right Cessation
- 1976-12-28 JP JP15764876A patent/JPS5283053A/ja active Granted
-
1978
- 1978-07-13 US US05/924,193 patent/US4174489A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB1539749A (en) | 1979-01-31 |
NL7614427A (nl) | 1977-07-01 |
AU503350B2 (en) | 1979-08-30 |
JPS5532309B2 (de) | 1980-08-23 |
DE2656924C3 (de) | 1981-03-26 |
US4174489A (en) | 1979-11-13 |
AU2091076A (en) | 1978-06-29 |
JPS5283053A (en) | 1977-07-11 |
SE414855B (sv) | 1980-08-18 |
NL173005C (nl) | 1983-11-16 |
DE2656924B2 (de) | 1980-07-31 |
FR2337468B1 (de) | 1980-10-17 |
FR2337468A1 (fr) | 1977-07-29 |
DE2656924A1 (de) | 1977-07-07 |
SE7614542L (sv) | 1977-06-30 |
CA1099350A (en) | 1981-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQ Effective date: 19851231 |