BE851868A - Recepteur pour modem fonctionnant en modulation hexaphase - Google Patents
Recepteur pour modem fonctionnant en modulation hexaphaseInfo
- Publication number
- BE851868A BE851868A BE175298A BE175298A BE851868A BE 851868 A BE851868 A BE 851868A BE 175298 A BE175298 A BE 175298A BE 175298 A BE175298 A BE 175298A BE 851868 A BE851868 A BE 851868A
- Authority
- BE
- Belgium
- Prior art keywords
- hexaphase
- modulation
- receiver
- modem operating
- modem
- 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
- H04L27/2272—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals using phase locked loops
-
- 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
- H04L27/2042—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 with more than two phase states
- H04L27/2046—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 with more than two phase states in which the data are represented by carrier phase
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/661,522 US4011407A (en) | 1976-02-26 | 1976-02-26 | Narrow-band eight-phase modem |
Publications (1)
Publication Number | Publication Date |
---|---|
BE851868A true BE851868A (fr) | 1977-06-16 |
Family
ID=24653954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE175298A BE851868A (fr) | 1976-02-26 | 1977-02-25 | Recepteur pour modem fonctionnant en modulation hexaphase |
Country Status (8)
Country | Link |
---|---|
US (1) | US4011407A (de) |
JP (1) | JPS52104858A (de) |
BE (1) | BE851868A (de) |
CH (1) | CH616786A5 (de) |
DE (1) | DE2708233C3 (de) |
FR (1) | FR2342601A1 (de) |
GB (1) | GB1572856A (de) |
NL (1) | NL7702061A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4169246A (en) * | 1976-12-06 | 1979-09-25 | Motorola, Inc. | Digital carrier correction circuit |
US4234957A (en) * | 1978-12-04 | 1980-11-18 | Gte Automatic Electric Laboratories Incorporated | Method and apparatus for generating timing phase error signals in PSK demodulators |
US4645995A (en) * | 1980-03-25 | 1987-02-24 | General Electric Company | Battery charger for plural cell holding modules |
DE19740721B4 (de) * | 1997-09-16 | 2006-09-21 | Siemens Ag | Verfahren zur Übertragung von Datensignalen auf analogen Teilnehmerleitungen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737578A (en) * | 1968-06-29 | 1973-06-05 | Nippon Electric Co | Phase synchronizing circuit |
US3562661A (en) * | 1969-01-15 | 1971-02-09 | Ibm | Digital automatic phase and frequency control system |
DE2047697B2 (de) * | 1970-09-28 | 1972-11-23 | Siemens AG, 1000 Berlin u. 8000 München | Schaltungsanordnung zur demodulation von phasendifferenzmodulierten datensignalen |
US3753114A (en) * | 1971-12-02 | 1973-08-14 | Culbertson Ind Inc | Method and apparatus for the recovery of synchronous carrier in a digital communication system |
-
1976
- 1976-02-26 US US05/661,522 patent/US4011407A/en not_active Expired - Lifetime
-
1977
- 1977-02-18 GB GB6892/77A patent/GB1572856A/en not_active Expired
- 1977-02-22 FR FR7705104A patent/FR2342601A1/fr not_active Withdrawn
- 1977-02-23 CH CH227777A patent/CH616786A5/de not_active IP Right Cessation
- 1977-02-25 NL NL7702061A patent/NL7702061A/xx not_active Application Discontinuation
- 1977-02-25 DE DE2708233A patent/DE2708233C3/de not_active Expired
- 1977-02-25 BE BE175298A patent/BE851868A/xx unknown
- 1977-02-25 JP JP2076177A patent/JPS52104858A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2342601A1 (fr) | 1977-09-23 |
CH616786A5 (de) | 1980-04-15 |
NL7702061A (nl) | 1977-08-30 |
GB1572856A (en) | 1980-08-06 |
US4011407A (en) | 1977-03-08 |
JPS52104858A (en) | 1977-09-02 |
DE2708233A1 (de) | 1977-09-01 |
DE2708233C3 (de) | 1979-07-12 |
DE2708233B2 (de) | 1978-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE420579B (sv) | Anordning for sagning av krokformat timmer | |
SE7704720L (sv) | Avvattningsanordning | |
FR2345605A1 (fr) | Dispositif de retenue pour aubes de soufflantes | |
NL7700885A (nl) | Grindafvoerinrichting. | |
FR2348493A1 (fr) | Immunotest pour la diphenyl-hydantoine | |
BE857015A (fr) | Aiguisoir pour couteaux | |
JPS5295387A (en) | Pipe cutting device | |
JPS52103792A (en) | Sawing device | |
BE851868A (fr) | Recepteur pour modem fonctionnant en modulation hexaphase | |
FR2348420A1 (fr) | Robinet melangeur | |
JPS5390447A (en) | Device for forming automatically knot | |
DK148813C (da) | Taphane | |
BE847316A (fr) | Dispositif anti-travers pour hydroptere, | |
JPS52109726A (en) | Water takeein device | |
SE7713813L (sv) | Avloppsanordning | |
JPS52130099A (en) | Twooside sawing device | |
JPS52100730A (en) | Device for taking in water | |
JPS5285380A (en) | Accesory device for photomicrosensor | |
JPS5325343A (en) | Oscillating device | |
JPS52117688A (en) | Device for collecting water | |
PT65216B (fr) | Dispositif pour le reclouement des bords | |
JPS5351628A (en) | Drainage block | |
AT350656B (de) | Netzstation | |
JPS5382031A (en) | Device for draining placed concrete | |
JPS5296483A (en) | Pipe cutting device |