IT1115202B - Apparato per la correzione di una condizione di bloccaggio in un sistema di sintonizzazione ad anello ad aggancio di fase - Google Patents

Apparato per la correzione di una condizione di bloccaggio in un sistema di sintonizzazione ad anello ad aggancio di fase

Info

Publication number
IT1115202B
IT1115202B IT22541/79A IT2254179A IT1115202B IT 1115202 B IT1115202 B IT 1115202B IT 22541/79 A IT22541/79 A IT 22541/79A IT 2254179 A IT2254179 A IT 2254179A IT 1115202 B IT1115202 B IT 1115202B
Authority
IT
Italy
Prior art keywords
correction
lock ring
phase lock
tuning system
locking condition
Prior art date
Application number
IT22541/79A
Other languages
English (en)
Italian (it)
Other versions
IT7922541A0 (it
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Publication of IT7922541A0 publication Critical patent/IT7922541A0/it
Application granted granted Critical
Publication of IT1115202B publication Critical patent/IT1115202B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S331/00—Oscillators
    • Y10S331/02—Phase locked loop having lock indicating or detecting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
IT22541/79A 1978-05-11 1979-05-10 Apparato per la correzione di una condizione di bloccaggio in un sistema di sintonizzazione ad anello ad aggancio di fase IT1115202B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/904,848 US4218657A (en) 1978-05-11 1978-05-11 Hangup corrector useful in locked loop tuning system

Publications (2)

Publication Number Publication Date
IT7922541A0 IT7922541A0 (it) 1979-05-10
IT1115202B true IT1115202B (it) 1986-02-03

Family

ID=25419880

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22541/79A IT1115202B (it) 1978-05-11 1979-05-10 Apparato per la correzione di una condizione di bloccaggio in un sistema di sintonizzazione ad anello ad aggancio di fase

Country Status (18)

Country Link
US (1) US4218657A (OSRAM)
JP (1) JPS54147712A (OSRAM)
AT (1) AT387876B (OSRAM)
AU (1) AU540791B2 (OSRAM)
CA (1) CA1131721A (OSRAM)
DE (1) DE2919071C2 (OSRAM)
ES (1) ES480484A1 (OSRAM)
FI (1) FI68336C (OSRAM)
FR (1) FR2425769B1 (OSRAM)
GB (1) GB2020931B (OSRAM)
HK (1) HK54986A (OSRAM)
IT (1) IT1115202B (OSRAM)
MX (1) MX4554E (OSRAM)
MY (1) MY8500716A (OSRAM)
NL (1) NL190500C (OSRAM)
NZ (1) NZ190418A (OSRAM)
PL (1) PL123484B1 (OSRAM)
SE (1) SE443481B (OSRAM)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5567248A (en) * 1978-11-15 1980-05-21 Sanyo Electric Co Ltd Frequency synthesizerrtype channel selection device
US4368540A (en) * 1981-06-05 1983-01-11 Rca Corporation Phase locked loop tuning system including a prescaler conditioned to oscillate at an out-of-band frequency
US4575761A (en) * 1983-04-28 1986-03-11 Rca Corporation AFT arrangement for a double conversion tuner
US4653074A (en) * 1985-01-24 1987-03-24 Sperry Corporation Bit sync generator
US5303398A (en) * 1990-03-09 1994-04-12 Thomson Consumer Electronics, Inc. Stability detection method and apparatus for a tuning system
JPH0418851U (OSRAM) * 1990-06-06 1992-02-17
US5257409A (en) * 1991-10-18 1993-10-26 Motorola, Inc. Frequency synthesizer with programming feedback
US5459765A (en) * 1993-01-12 1995-10-17 Nvision, Inc. Phase comparator for biphase coded signal including preamble with code violation
DE102006062518A1 (de) * 2006-12-29 2008-07-03 Micronas Gmbh Verfahren und Vorrichtung zur Phasenregelung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2011710A1 (OSRAM) * 1968-06-27 1970-03-06 North American Rockwell
DE2163971C3 (de) * 1971-12-22 1979-07-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltung zur digitalen Frequenzeinstellung eines Oszillators
US3971991A (en) * 1974-09-04 1976-07-27 Zenith Radio Corporation Television tuning system with varactor malfunction detection
US4000476A (en) * 1974-12-19 1976-12-28 Digital Communications Corporation Phase locked loop with circuit for preventing sidelock
US3958186A (en) * 1975-03-10 1976-05-18 Motorola, Inc. Wideband phase locked loop transmitter system
SE384956B (sv) * 1975-06-17 1976-05-24 Ericsson Telefon Ab L M Anordning for frekvensreglering av en oscillatorkrets
US4031549A (en) * 1976-05-21 1977-06-21 Rca Corporation Television tuning system with provisions for receiving RF carrier at nonstandard frequency
US4100503A (en) * 1976-07-21 1978-07-11 W. C. Lindsey Inc. Correlative tracking system with lock indicator
US4077016A (en) * 1977-02-22 1978-02-28 Ncr Corporation Apparatus and method for inhibiting false locking of a phase-locked loop
US4131862A (en) * 1977-10-13 1978-12-26 Sperry Rand Corporation Phase lock loop with narrow band lock-in and wideband acquisition characteristics

Also Published As

Publication number Publication date
AU540791B2 (en) 1984-12-06
ATA351479A (de) 1988-08-15
FI68336C (fi) 1985-08-12
IT7922541A0 (it) 1979-05-10
DE2919071C2 (de) 1984-10-25
PL123484B1 (en) 1982-10-30
JPS54147712A (en) 1979-11-19
DE2919071A1 (de) 1979-11-22
FI68336B (fi) 1985-04-30
GB2020931B (en) 1982-06-23
SE7903924L (sv) 1979-11-12
NL7903703A (nl) 1979-11-13
SE443481B (sv) 1986-02-24
HK54986A (en) 1986-08-01
MY8500716A (en) 1985-12-31
JPS6249768B2 (OSRAM) 1987-10-21
FR2425769B1 (fr) 1985-10-04
ES480484A1 (es) 1980-01-01
NZ190418A (en) 1981-07-13
NL190500C (nl) 1994-03-16
NL190500B (nl) 1993-10-18
CA1131721A (en) 1982-09-14
FR2425769A1 (fr) 1979-12-07
AU4683479A (en) 1979-11-15
MX4554E (es) 1982-06-10
PL215515A1 (OSRAM) 1980-02-11
AT387876B (de) 1989-03-28
GB2020931A (en) 1979-11-21
US4218657A (en) 1980-08-19
FI791442A7 (fi) 1979-11-12

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529