ES454833A1 - Generador de senal de sincronizacion de frecuencia varia- ble. - Google Patents
Generador de senal de sincronizacion de frecuencia varia- ble.Info
- Publication number
- ES454833A1 ES454833A1 ES454833A ES454833A ES454833A1 ES 454833 A1 ES454833 A1 ES 454833A1 ES 454833 A ES454833 A ES 454833A ES 454833 A ES454833 A ES 454833A ES 454833 A1 ES454833 A1 ES 454833A1
- Authority
- ES
- Spain
- Prior art keywords
- phase detector
- nonharmonic
- tow mode
- mode harmonic
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000011084 recovery Methods 0.000 abstract 1
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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Generador de señal de sincronización de frecuencia variable para generar una señal de sincronización que tiene una frecuencia y una fase que responden a los impulsos de una señal de información, que incluye en combinación: un oscilador de frecuencia variable para generar una señal de salida que tiene una frecuencia que varía en respuesta a la magnitud de una señal de error que recibe; un detector de fase conectado para recibir y comparar la señal de información y la señal de salida del oscilador, que incluye unos medios para suministrar una señal de error al oscilador en respuesta a la diferencia de fase entre la señal de información y la señal de salida; y un circuito de entrada para suministrar la señal de información al detector de fase, incluyendo dicho circuito unos medios para impedir la generación de una señal de error cuando no se recibe un impulso de información.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64759476A | 1976-01-08 | 1976-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES454833A1 true ES454833A1 (es) | 1978-01-01 |
Family
ID=24597574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES454833A Expired ES454833A1 (es) | 1976-01-08 | 1977-01-05 | Generador de senal de sincronizacion de frecuencia varia- ble. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4080576A (es) |
JP (1) | JPS5286029A (es) |
CA (1) | CA1057860A (es) |
DE (1) | DE2659468C2 (es) |
ES (1) | ES454833A1 (es) |
FR (1) | FR2337968A1 (es) |
IT (1) | IT1203054B (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195264A (en) * | 1978-04-26 | 1980-03-25 | Gte Sylvania Incorporated | Noise detection circuit |
US4229824A (en) * | 1978-07-21 | 1980-10-21 | Cubic Corporation | Method and apparatus for synchronizing electrical signals |
US4222009A (en) * | 1978-11-02 | 1980-09-09 | Sperry Corporation | Phase lock loop preconditioning circuit |
JPS5572225A (en) * | 1978-11-27 | 1980-05-30 | Nec Corp | Improper timing detection circuit |
US4200845A (en) * | 1978-12-22 | 1980-04-29 | Sperry Rand Corporation | Phase comparator with dual phase detectors |
FR2458181A1 (fr) * | 1979-06-01 | 1980-12-26 | Thomson Csf | Dispositif de synchronisation d'un signal d'horloge et systemes de transmission de donnees synchrones comportant un tel dispositif |
US4316150A (en) * | 1980-01-09 | 1982-02-16 | Tektronix, Inc. | Phase locked loop including phase detector system controlled by enable pulses |
US4420776A (en) * | 1981-11-30 | 1983-12-13 | International Business Machines | PSK Modulation in AC bias data recording |
US4475220A (en) * | 1982-01-19 | 1984-10-02 | Rca Corporation | Symbol synchronizer for MPSK signals |
US5004933A (en) * | 1986-06-02 | 1991-04-02 | Tektronix, Inc. | Phase-selectable flip-flop |
US4972161A (en) * | 1989-06-28 | 1990-11-20 | Digital Equipment Corporation | Clock recovery for serial data communications system |
US7588029B2 (en) * | 2000-03-21 | 2009-09-15 | Fisher & Paykel Healthcare Limited | Humidified gases delivery apparatus |
US7786763B1 (en) | 2008-12-30 | 2010-08-31 | Integrated Device Technology, Inc. | Clock circuit with harmonic frequency detector |
US8289821B1 (en) | 2010-12-21 | 2012-10-16 | Western Digital (Fremont), Llc | Method and system for pulsing EAMR disk drives |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3470475A (en) * | 1966-09-28 | 1969-09-30 | Nasa | Automatic frequency discriminators and control for a phase-lock loop providing frequency preset capabilities |
US3514698A (en) * | 1967-07-17 | 1970-05-26 | Thomas J Rey | Device for generating or measuring preselected frequency signals |
US3614635A (en) * | 1969-12-31 | 1971-10-19 | Ibm | Variable frequency control system and data standardizer |
US3755748A (en) * | 1972-03-06 | 1973-08-28 | Motorola Inc | Digital phase shifter/synchronizer and method of shifting |
US3870900A (en) * | 1973-11-12 | 1975-03-11 | Ibm | Phase discriminator having unlimited capture range |
-
1976
- 1976-09-22 CA CA261,762A patent/CA1057860A/en not_active Expired
- 1976-12-30 IT IT31032/76A patent/IT1203054B/it active
- 1976-12-30 DE DE2659468A patent/DE2659468C2/de not_active Expired
-
1977
- 1977-01-05 JP JP17277A patent/JPS5286029A/ja active Pending
- 1977-01-05 ES ES454833A patent/ES454833A1/es not_active Expired
- 1977-01-06 FR FR7700245A patent/FR2337968A1/fr active Granted
- 1977-04-18 US US05/788,183 patent/US4080576A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2337968A1 (fr) | 1977-08-05 |
CA1057860A (en) | 1979-07-03 |
DE2659468C2 (de) | 1984-05-03 |
US4080576A (en) | 1978-03-21 |
IT1203054B (it) | 1989-02-15 |
DE2659468A1 (de) | 1977-07-28 |
FR2337968B3 (es) | 1979-09-07 |
JPS5286029A (en) | 1977-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES454833A1 (es) | Generador de senal de sincronizacion de frecuencia varia- ble. | |
AU3188277A (en) | Providing for expansion in pulversied coal gasifier | |
JPS5326558A (en) | Pll | |
JPS5327330A (en) | Device for making hard copy on record medium | |
JPS55110460A (en) | Clock reproducer for phase modulation data receiver | |
JPS523405A (en) | Signal recording appliance | |
JPS5354007A (en) | Method and device for collecting data track | |
JPS5341306A (en) | Liquefaction on coal | |
ZA773677B (en) | Coal liquefaction process employing carbon monoxide | |
CA1028927A (en) | Fluid oscillator | |
JPS5341305A (en) | Liquefaction on coal | |
CH613671A5 (en) | System for receiving a moving web, in particular of paper | |
ZA777333B (en) | Liquid membranes and process for uranium recovery therewith | |
AU5498773A (en) | Arrangement for carrier recovery in carrier frequency video and data transmission systems | |
JPS539508A (en) | Magnetic recording and playback system | |
JPS53111706A (en) | Recording and reproducing system for audio signals | |
AU3021977A (en) | Systems for railroads | |
JPS52132810A (en) | Recorded recording medium | |
CH613419A5 (en) | Method for automatically transmitting information in railway systems, the said information also containing the train numbers | |
GB1537914A (en) | Chrome removal and recovery | |
JPS5349910A (en) | Video signal process system using rotary recording medium | |
JPS5385113A (en) | Editing system in magnetic recording and reproducing device | |
DE3060712D1 (en) | Phase-locked oscillator circuit and system for generating a clock signal using this circuit | |
JPS5468610A (en) | Recording and reproducing system of address signal in disc- shaped recording medium having spiral recording track | |
JPS5380229A (en) | Recording paper for use in pressure fixing |