IT1153336B - Dispositivo numerico di sincronizzazione di orologio - Google Patents
Dispositivo numerico di sincronizzazione di orologioInfo
- Publication number
- IT1153336B IT1153336B IT24023/82A IT2402382A IT1153336B IT 1153336 B IT1153336 B IT 1153336B IT 24023/82 A IT24023/82 A IT 24023/82A IT 2402382 A IT2402382 A IT 2402382A IT 1153336 B IT1153336 B IT 1153336B
- Authority
- IT
- Italy
- Prior art keywords
- clock synchronization
- synchronization device
- numerical
- numerical clock
- synchronization
- 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
- H03L7/16—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
- H03L7/181—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 numerical count result being used for locking the loop, the counter counting during fixed time intervals
-
- 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
- H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
- H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal
- H03L7/148—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal said digital means comprising a counter or a divider
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
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 |
|---|---|---|---|
| FR8120582A FR2515902B1 (fr) | 1981-11-03 | 1981-11-03 | Dispositif numerique de synchronisation d'horloge et son application aux reseaux de connexion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8224023A0 IT8224023A0 (it) | 1982-11-02 |
| IT1153336B true IT1153336B (it) | 1987-01-14 |
Family
ID=9263648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT24023/82A IT1153336B (it) | 1981-11-03 | 1982-11-02 | Dispositivo numerico di sincronizzazione di orologio |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2515902B1 (it) |
| GB (1) | GB2112236B (it) |
| IT (1) | IT1153336B (it) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3401486A1 (de) * | 1984-01-18 | 1985-07-25 | Bayer Ag, 5090 Leverkusen | Verfahren und mittel zur verhinderung von erdoellagerstaettenblockierungen durch emulsionsbildung aufgrund von asphaltenabscheidungen |
| US5258720A (en) * | 1984-03-02 | 1993-11-02 | Itt Corporation | Digital sample and hold phase detector |
| GB2267617B (en) * | 1985-04-15 | 1994-04-27 | Int Standard Electric Corp | A digital sample and hold phase detector |
| GB2199708B (en) * | 1986-11-01 | 1991-05-01 | Storno As | Digital automatic frequency control |
| US5228057A (en) * | 1989-11-15 | 1993-07-13 | Telefonaktiebolaget L M Ericsson | Method of determining sampling time points |
| DE69106362T2 (de) | 1990-06-29 | 1995-05-18 | Analog Devices Inc | Verfahren und vorrichtung zur abspeicherung eines digitalen signals zur anwendung in einer synchronlaufzeitkette. |
| ES2048681B1 (es) * | 1992-10-30 | 1995-01-01 | Alcatel Standard Electrica | Sintetizador digital de frecuencias. |
| US5861842A (en) * | 1997-08-29 | 1999-01-19 | Space Systems/Loral, Inc. | Spacecraft disciplined reference oscillator |
| US7194056B2 (en) * | 2001-06-25 | 2007-03-20 | Rambus Inc. | Determining phase relationships using digital phase values |
| JP4356946B2 (ja) * | 2006-03-31 | 2009-11-04 | 日本電波工業株式会社 | Ｐｌｌ装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940558A (en) * | 1975-01-31 | 1976-02-24 | Digital Communications Corporation | Remote master/slave station clock |
| US3989931A (en) * | 1975-05-19 | 1976-11-02 | Rockwell International Corporation | Pulse count generator for wide range digital phase detector |
| JPS5821967B2 (ja) * | 1977-11-07 | 1983-05-06 | 日本電気株式会社 | 位相同期装置 |
| JPS594900B2 (ja) * | 1979-09-03 | 1984-02-01 | 日本電気株式会社 | クロック再生回路 |
-
1981
- 1981-11-03 FR FR8120582A patent/FR2515902B1/fr not_active Expired
-
1982
- 1982-10-29 GB GB08230977A patent/GB2112236B/en not_active Expired
- 1982-11-02 IT IT24023/82A patent/IT1153336B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB2112236A (en) | 1983-07-13 |
| FR2515902B1 (fr) | 1985-12-06 |
| IT8224023A0 (it) | 1982-11-02 |
| GB2112236B (en) | 1985-06-19 |
| FR2515902A1 (fr) | 1983-05-06 |
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