IT1085727B - Disposizione circuitale per sincronizzare,con precisione di fase,generatori fondamentali in sistemi di comunicazioni elettriche a frequenze vettrici - Google Patents
Disposizione circuitale per sincronizzare,con precisione di fase,generatori fondamentali in sistemi di comunicazioni elettriche a frequenze vettriciInfo
- Publication number
- IT1085727B IT1085727B IT2650577A IT2650577A IT1085727B IT 1085727 B IT1085727 B IT 1085727B IT 2650577 A IT2650577 A IT 2650577A IT 2650577 A IT2650577 A IT 2650577A IT 1085727 B IT1085727 B IT 1085727B
- Authority
- IT
- Italy
- Prior art keywords
- synchronize
- frequencies
- glass
- circuit arrangement
- communications systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
- H03L7/187—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
- H03L7/189—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
- H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762636150 DE2636150C2 (de) | 1976-08-11 | 1976-08-11 | Verfahren und Anordnung zur phasengenauen Synchronisation von Grundgeneratoren |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1085727B true IT1085727B (it) | 1985-05-28 |
Family
ID=5985231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2650577A IT1085727B (it) | 1976-08-11 | 1977-08-05 | Disposizione circuitale per sincronizzare,con precisione di fase,generatori fondamentali in sistemi di comunicazioni elettriche a frequenze vettrici |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5821966B2 (de) |
AT (1) | AT365022B (de) |
BE (1) | BE857697A (de) |
CH (1) | CH617804A5 (de) |
DE (1) | DE2636150C2 (de) |
FR (1) | FR2361769A1 (de) |
GB (1) | GB1591045A (de) |
IT (1) | IT1085727B (de) |
LU (1) | LU77942A1 (de) |
NL (1) | NL7708803A (de) |
SE (1) | SE7709061L (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2907608A1 (de) * | 1979-02-27 | 1980-08-28 | Siemens Ag | Schaltungsanordnung zur takterzeugung in fernmeldeanlagen, insbesondere zeitmultiplex-digital-vermittlungsanlagen |
DE2941712A1 (de) * | 1979-10-15 | 1981-04-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Fernsteuerschaltung |
DE2945331C2 (de) * | 1979-11-09 | 1984-05-30 | Nixdorf Computer Ag, 4790 Paderborn | Vorrichtung in einer Signal-oder Datenverarbeitungsanlage zur Einstellung einer Signalverarbeitungsschaltung |
JPS6329304Y2 (de) * | 1979-11-20 | 1988-08-08 | ||
USRE34317E (en) * | 1982-08-05 | 1993-07-20 | Seiko Epson Corporation | Variable frequency oscillator |
NL8402286A (nl) * | 1984-07-19 | 1986-02-17 | Philips Nv | Kleurentelevisieontvanger bevattende een chrominantiesignaalverwerkingsschakeling en een geintegreerde schakeling daarvoor. |
AT386305B (de) * | 1986-07-08 | 1988-08-10 | Siemens Ag Oesterreich | Traegerfrequenz-station |
DE58909454D1 (de) * | 1989-07-06 | 1995-11-02 | Itt Ind Gmbh Deutsche | Digitale Steuerschaltung für Abstimmsysteme. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1067454A (en) * | 1963-06-21 | 1967-05-03 | Plessey Uk Ltd | Improvements in or relating to controlled frequency electrical oscillation generators |
DE2126281A1 (de) * | 1971-05-27 | 1972-12-14 | Spectrospin Ag | Vorrichtung zur Erzeugung einer fre quenzstabilen HF Schwingung |
DE2238241A1 (de) * | 1972-08-03 | 1974-02-14 | Bosch Gmbh Robert | Schaltungsanordnung zur filterung von impulsfolgefrequenzen, insbesondere fuer impuls-drehzahlgeber auf kraftfahrzeugen |
JPS5075351A (de) * | 1973-11-05 | 1975-06-20 | ||
JPS513160A (de) * | 1974-06-25 | 1976-01-12 | Matsushita Electric Ind Co Ltd |
-
1976
- 1976-08-11 DE DE19762636150 patent/DE2636150C2/de not_active Expired
-
1977
- 1977-06-29 CH CH796277A patent/CH617804A5/de not_active IP Right Cessation
- 1977-08-02 FR FR7723757A patent/FR2361769A1/fr active Granted
- 1977-08-05 IT IT2650577A patent/IT1085727B/it active
- 1977-08-08 AT AT579077A patent/AT365022B/de not_active IP Right Cessation
- 1977-08-09 LU LU77942A patent/LU77942A1/xx unknown
- 1977-08-10 SE SE7709061A patent/SE7709061L/ not_active Application Discontinuation
- 1977-08-10 GB GB3344877A patent/GB1591045A/en not_active Expired
- 1977-08-10 NL NL7708803A patent/NL7708803A/xx not_active Application Discontinuation
- 1977-08-11 BE BE180089A patent/BE857697A/xx unknown
- 1977-08-11 JP JP52096527A patent/JPS5821966B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT365022B (de) | 1981-12-10 |
FR2361769B1 (de) | 1981-10-16 |
DE2636150B1 (de) | 1978-01-05 |
FR2361769A1 (fr) | 1978-03-10 |
JPS5821966B2 (ja) | 1983-05-06 |
NL7708803A (nl) | 1978-02-14 |
LU77942A1 (de) | 1977-11-17 |
SE7709061L (sv) | 1978-02-12 |
ATA579077A (de) | 1981-04-15 |
JPS5321558A (en) | 1978-02-28 |
CH617804A5 (en) | 1980-06-13 |
GB1591045A (en) | 1981-06-10 |
DE2636150C2 (de) | 1984-10-25 |
BE857697A (fr) | 1977-12-01 |
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