IT1200911B - Comparatore fase-frequenza per anelli ad aggancio di fase - Google Patents

Comparatore fase-frequenza per anelli ad aggancio di fase

Info

Publication number
IT1200911B
IT1200911B IT23293/85A IT2329385A IT1200911B IT 1200911 B IT1200911 B IT 1200911B IT 23293/85 A IT23293/85 A IT 23293/85A IT 2329385 A IT2329385 A IT 2329385A IT 1200911 B IT1200911 B IT 1200911B
Authority
IT
Italy
Prior art keywords
phase
frequency comparator
locking rings
phase locking
rings
Prior art date
Application number
IT23293/85A
Other languages
English (en)
Other versions
IT8523293A0 (it
Inventor
Maurizio Viti
Original Assignee
Gte Telecom 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 Gte Telecom Spa filed Critical Gte Telecom Spa
Priority to IT23293/85A priority Critical patent/IT1200911B/it
Publication of IT8523293A0 publication Critical patent/IT8523293A0/it
Priority to US06/927,579 priority patent/US4772852A/en
Priority to BE0/217565A priority patent/BE905992A/fr
Application granted granted Critical
Publication of IT1200911B publication Critical patent/IT1200911B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G01R25/08—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents by counting of standard pulses
    • 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
    • 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measuring Phase Differences (AREA)
IT23293/85A 1985-12-19 1985-12-19 Comparatore fase-frequenza per anelli ad aggancio di fase IT1200911B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT23293/85A IT1200911B (it) 1985-12-19 1985-12-19 Comparatore fase-frequenza per anelli ad aggancio di fase
US06/927,579 US4772852A (en) 1985-12-19 1986-11-06 Phase-frequency comparator for phase-locked loops
BE0/217565A BE905992A (fr) 1985-12-19 1986-12-19 Comparateur phase-frequence pour utilisation dans une boucle a phase rigide.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23293/85A IT1200911B (it) 1985-12-19 1985-12-19 Comparatore fase-frequenza per anelli ad aggancio di fase

Publications (2)

Publication Number Publication Date
IT8523293A0 IT8523293A0 (it) 1985-12-19
IT1200911B true IT1200911B (it) 1989-01-27

Family

ID=11205749

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23293/85A IT1200911B (it) 1985-12-19 1985-12-19 Comparatore fase-frequenza per anelli ad aggancio di fase

Country Status (3)

Country Link
US (1) US4772852A (it)
BE (1) BE905992A (it)
IT (1) IT1200911B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868513A (en) * 1987-09-11 1989-09-19 Amdahl Corporation Phase-locked loop with redundant reference input
US4906944A (en) * 1988-08-17 1990-03-06 Rockwell International Corporation Integrator controlled time compensated clock oscillator
US5228138A (en) * 1991-01-23 1993-07-13 Massachusetts Institute Of Technology Synchronization of hardware oscillators in a mesh-connected parallel processor
FI105427B (fi) * 1998-09-17 2000-08-15 Nokia Networks Oy Menetelmä vaihelukitun silmukan vertaussignaalin vaihtamisesta aiheutuvan vaihehypyn pienentämiseksi ja vaihelukittu silmukka
US6895033B1 (en) * 2000-03-29 2005-05-17 Motorola Inc. Method and apparatus for call recovery after a power cut for a CDMA cellular phone
US7873130B2 (en) * 2005-08-10 2011-01-18 Ludwig Lester F Frequency comparator utilizing enveloping-event detection via symbolic dynamics of fixed or modulated waveforms

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599102A (en) * 1970-01-26 1971-08-10 Cincinnati Milacron Inc Digital phase detector
US3849671A (en) * 1972-05-15 1974-11-19 Dynell Elec Phase detector circuitry
US4123704A (en) * 1978-01-30 1978-10-31 Sperry Rand Corporation Frequency deviation digital display circuit
US4339731A (en) * 1980-06-05 1982-07-13 Rockwell International Corporation Stable, fast slew, phase locked loop
US4668917A (en) * 1984-01-03 1987-05-26 Motorola, Inc. Phase comparator for use with a digital phase locked loop or other phase sensitive device

Also Published As

Publication number Publication date
IT8523293A0 (it) 1985-12-19
US4772852A (en) 1988-09-20
BE905992A (fr) 1987-04-16

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Effective date: 19961218