IT1115582B - Generatore di frequenza particolarmente per trasmissioni radiofoniche - Google Patents

Generatore di frequenza particolarmente per trasmissioni radiofoniche

Info

Publication number
IT1115582B
IT1115582B IT68976/78A IT6897678A IT1115582B IT 1115582 B IT1115582 B IT 1115582B IT 68976/78 A IT68976/78 A IT 68976/78A IT 6897678 A IT6897678 A IT 6897678A IT 1115582 B IT1115582 B IT 1115582B
Authority
IT
Italy
Prior art keywords
frequency generator
radio transmissions
generator particularly
transmissions
radio
Prior art date
Application number
IT68976/78A
Other languages
English (en)
Other versions
IT7868976A0 (it
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of IT7868976A0 publication Critical patent/IT7868976A0/it
Application granted granted Critical
Publication of IT1115582B publication Critical patent/IT1115582B/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
    • H03L7/16—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
    • H03L7/183—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 time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
IT68976/78A 1977-09-07 1978-08-24 Generatore di frequenza particolarmente per trasmissioni radiofoniche IT1115582B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37256/77A GB1564375A (en) 1977-09-07 1977-09-07 Frequency generators

Publications (2)

Publication Number Publication Date
IT7868976A0 IT7868976A0 (it) 1978-08-24
IT1115582B true IT1115582B (it) 1986-02-03

Family

ID=10395013

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68976/78A IT1115582B (it) 1977-09-07 1978-08-24 Generatore di frequenza particolarmente per trasmissioni radiofoniche

Country Status (9)

Country Link
US (1) US4246547A (it)
BE (1) BE870273A (it)
CA (1) CA1116252A (it)
DE (1) DE2750150A1 (it)
FR (1) FR2402968A1 (it)
GB (1) GB1564375A (it)
IT (1) IT1115582B (it)
NL (1) NL7809061A (it)
SE (1) SE7809376L (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2045556B (en) * 1979-03-06 1983-08-03 Racal Dana Instr Ltd Frequency synthesizers
US4321555A (en) * 1980-04-16 1982-03-23 King Radio Corporation Universal frequency synthesizer
FR2514968A1 (fr) * 1981-10-16 1983-04-22 Trt Telecom Radio Electr Synthetiseur de frequence a accord rapide
DE3216631C2 (de) * 1982-05-04 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Oszillatorschaltung
DE3518379A1 (de) * 1985-05-22 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Regelschaltung mit einer flankengesteuerten phasenvergleichsschaltung
CA1278853C (en) * 1985-12-16 1991-01-08 Masaaki Shiraishi Speed control circuit for mechanical scan ultrasonic imaging apparatus
DE3801418A1 (de) * 1988-01-20 1989-08-03 Telefunken Electronic Gmbh Frequenzsynthese-schaltung
GB2245441B (en) * 1990-06-13 1994-04-06 Motorola Israel Ltd Fine-tune frequency adjustor
US7242229B1 (en) 2001-05-06 2007-07-10 Altera Corporation Phase locked loop (PLL) and delay locked loop (DLL) counter and delay element programming in user mode

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1473202A (fr) * 1966-01-25 1967-03-17 Cit Alcatel Générateur de fréquences régulièrement échelonnées dans une très large bande
US3448401A (en) * 1967-08-24 1969-06-03 Bendix Corp Digital frequency synthesizer eliminating high speed counters
US3713040A (en) * 1971-12-23 1973-01-23 Hewlett Packard Co Signal frequency controller
US3872397A (en) * 1973-11-07 1975-03-18 King Radio Corp Method and apparatus for decreasing channel spacing in digital frequency synthesizers
US3928813A (en) * 1974-09-26 1975-12-23 Hewlett Packard Co Device for synthesizing frequencies which are rational multiples of a fundamental frequency
IT1036497B (it) * 1975-07-11 1979-10-30 Indesit Circuito selezionatore di emittente in un ricevitore di segnali
IT1073074B (it) * 1975-11-14 1985-04-13 Rca Corp Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata
US4107612A (en) * 1976-05-05 1978-08-15 Frederick Electronics Corporation Phase locked loop exciter generator for high frequency transmitter
US4041535A (en) * 1976-07-22 1977-08-09 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with signal seek control

Also Published As

Publication number Publication date
CA1116252A (en) 1982-01-12
BE870273A (fr) 1979-03-06
FR2402968B1 (it) 1981-12-18
US4246547A (en) 1981-01-20
FR2402968A1 (fr) 1979-04-06
SE7809376L (sv) 1979-03-08
DE2750150A1 (de) 1979-03-08
GB1564375A (en) 1980-04-10
NL7809061A (nl) 1979-03-09
IT7868976A0 (it) 1978-08-24

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