IT986172B - Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione - Google Patents

Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione

Info

Publication number
IT986172B
IT986172B IT50862/73A IT5086273A IT986172B IT 986172 B IT986172 B IT 986172B IT 50862/73 A IT50862/73 A IT 50862/73A IT 5086273 A IT5086273 A IT 5086273A IT 986172 B IT986172 B IT 986172B
Authority
IT
Italy
Prior art keywords
oscillator
communication systems
synchronization device
automatic synchronization
tele communication
Prior art date
Application number
IT50862/73A
Other languages
English (en)
Original Assignee
Fatme Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fatme Spa filed Critical Fatme Spa
Priority to IT50862/73A priority Critical patent/IT986172B/it
Priority to US476897A priority patent/US3903482A/en
Priority to DE19742428495 priority patent/DE2428495B2/de
Priority to SE7407745A priority patent/SE392374B/xx
Priority to BR4932/74A priority patent/BR7404932D0/pt
Application granted granted Critical
Publication of IT986172B publication Critical patent/IT986172B/it

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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail 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 by using digital means for generating the oscillator control signal said digital means comprising a counter or a divider
IT50862/73A 1973-06-18 1973-06-18 Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione IT986172B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT50862/73A IT986172B (it) 1973-06-18 1973-06-18 Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione
US476897A US3903482A (en) 1973-06-18 1974-06-06 Arrangement for interference suppression in phase locked loop synchronized oscillators
DE19742428495 DE2428495B2 (de) 1973-06-18 1974-06-12 Anordnung zur stoerungsunterdrueckung in synchronisierten oszillatoren
SE7407745A SE392374B (sv) 1973-06-18 1974-06-12 Anordning for storningsundertryckning i synkroniserade oscillatorer av typ fastlast slinga
BR4932/74A BR7404932D0 (pt) 1973-06-18 1974-06-17 Arranjo para supressao de interferencia em osciladores sincronizados

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT50862/73A IT986172B (it) 1973-06-18 1973-06-18 Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione

Publications (1)

Publication Number Publication Date
IT986172B true IT986172B (it) 1975-01-20

Family

ID=11274006

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50862/73A IT986172B (it) 1973-06-18 1973-06-18 Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione

Country Status (5)

Country Link
US (1) US3903482A (it)
BR (1) BR7404932D0 (it)
DE (1) DE2428495B2 (it)
IT (1) IT986172B (it)
SE (1) SE392374B (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061979A (en) * 1975-10-20 1977-12-06 Digital Communications Corporation Phase locked loop with pre-set and squelch
SE396521B (sv) * 1975-12-30 1977-09-19 Ericsson Telefon Ab L M Storningsresistent faslast slinga
US4031483A (en) * 1976-01-15 1977-06-21 Sperry Rand Corporation Limiter circuit for servosystems
US4029900A (en) * 1976-01-26 1977-06-14 Bell Telephone Laboratories, Incorporated Digital synchronizing signal recovery circuits for a data receiver
US4099125A (en) * 1976-06-23 1978-07-04 Motorola, Inc. Frequency error correction circuit
JPS5384666A (en) * 1976-12-30 1978-07-26 Alps Electric Co Ltd Pll circuit
US4313139A (en) * 1980-02-11 1982-01-26 Exxon Research & Engineering Co. Carrier recovery circuit for a facsimile system
DE3263457D1 (en) * 1981-04-22 1985-06-20 Contraves Ag Sine wave synchronisation voltage generating circuit for scr firing
NL8202685A (nl) * 1982-07-05 1984-02-01 Philips Nv Kloksignaalregenerator met hoge stabiliteit.
FR2531589A1 (fr) * 1982-08-06 1984-02-10 Europ Agence Spatiale Generateur de signaux de synchronisation pour reseau de telecommunications
FR2535545B1 (fr) * 1982-10-29 1989-08-04 Thomson Csf Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur
DE3324919A1 (de) * 1983-07-09 1985-01-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Phasenregelkreis
JPS63281519A (ja) * 1987-05-13 1988-11-18 Noboru Yamaguchi 同期クロック信号発生装置
DE3731567A1 (de) * 1987-09-19 1989-04-06 Thomson Brandt Gmbh Frequenzdemodulator in pll-technik
EP0326899A3 (de) * 1988-01-29 1990-05-30 Siemens Nixdorf Informationssysteme Aktiengesellschaft Schaltungsanordnung zur Bildung eines digitalen Taktsignals
SG73369A1 (en) * 1993-04-20 2000-06-20 Rca Thomson Licensing Corp An oscillator with switched reactive elements
US5574407A (en) * 1993-04-20 1996-11-12 Rca Thomson Licensing Corporation Phase lock loop with error consistency detector
FI97003C (fi) * 1993-09-27 1996-09-25 Nokia Telecommunications Oy Menetelmä vaihelukitun silmukan ohjaamiseksi sekä vaihelukittu silmukka
US5926515A (en) * 1995-12-26 1999-07-20 Samsung Electronics Co., Ltd. Phase locked loop for improving a phase locking time
JP3542978B2 (ja) * 2001-05-29 2004-07-14 埼玉日本電気株式会社 周波数同期装置および周波数同期制御方法
GB2383697A (en) * 2001-12-27 2003-07-02 Zarlink Semiconductor Inc Method of speeding lock of PLL
NL1031209C2 (nl) * 2006-02-22 2007-08-24 Enraf Bv Werkwijze en inrichting voor het nauwkeurig vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
NL1034327C2 (nl) * 2007-09-04 2009-03-05 Enraf Bv Werkwijze en inrichting voor het binnen een bepaald meetbereik vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
US8224594B2 (en) * 2008-09-18 2012-07-17 Enraf B.V. Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications
US8659472B2 (en) * 2008-09-18 2014-02-25 Enraf B.V. Method and apparatus for highly accurate higher frequency signal generation and related level gauge
US8271212B2 (en) * 2008-09-18 2012-09-18 Enraf B.V. Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus
US9046406B2 (en) 2012-04-11 2015-06-02 Honeywell International Inc. Advanced antenna protection for radars in level gauging and other applications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL280342A (it) * 1961-06-29
US3573649A (en) * 1969-01-08 1971-04-06 Us Navy Frequency-lock circuit

Also Published As

Publication number Publication date
US3903482A (en) 1975-09-02
BR7404932D0 (pt) 1975-09-30
SE392374B (sv) 1977-03-21
SE7407745L (it) 1974-12-19
DE2428495B2 (de) 1976-01-29
DE2428495A1 (de) 1975-01-02

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