IT971902B - Circuito per la definizione digi tale della frequenza di un oscil latore - Google Patents
Circuito per la definizione digi tale della frequenza di un oscil latoreInfo
- Publication number
- IT971902B IT971902B IT32951/72A IT3295172A IT971902B IT 971902 B IT971902 B IT 971902B IT 32951/72 A IT32951/72 A IT 32951/72A IT 3295172 A IT3295172 A IT 3295172A IT 971902 B IT971902 B IT 971902B
- Authority
- IT
- Italy
- Prior art keywords
- oscilator
- frequency
- circuit
- digital definition
- definition
- Prior art date
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
- H03L7/181—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 numerical count result being used for locking the loop, the counter counting during fixed time intervals
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2163971A DE2163971C3 (de) | 1971-12-22 | 1971-12-22 | Schaltung zur digitalen Frequenzeinstellung eines Oszillators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT971902B true IT971902B (it) | 1974-05-10 |
Family
ID=5828911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT32951/72A IT971902B (it) | 1971-12-22 | 1972-12-15 | Circuito per la definizione digi tale della frequenza di un oscil latore |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3806825A (it) |
| JP (1) | JPS4871867A (it) |
| DE (1) | DE2163971C3 (it) |
| FR (1) | FR2164641B1 (it) |
| GB (1) | GB1409290A (it) |
| IT (1) | IT971902B (it) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991382A (en) * | 1974-06-11 | 1976-11-09 | Sansui Electric Co., Ltd. | Oscillation frequency control device for a local oscillator |
| JPS52150924A (en) * | 1976-06-09 | 1977-12-15 | Sharp Corp | Frequency control unit |
| DE2723766C2 (de) * | 1977-05-26 | 1982-12-16 | Rohde & Schwarz GmbH & Co KG, 8000 München | Schaltung zur digitalen Frequenzeinstellung eines phasengeregelten insbesondere oberwellensynchronisierten Oszillators |
| US4218657A (en) * | 1978-05-11 | 1980-08-19 | Rca Corporation | Hangup corrector useful in locked loop tuning system |
| JPS594900B2 (ja) * | 1979-09-03 | 1984-02-01 | 日本電気株式会社 | クロック再生回路 |
| DE2940858C2 (de) * | 1979-10-09 | 1982-09-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum kombinierten Nachregeln der Frequenz und Phase eines plesiochron arbeitenden Oszillators |
| GB2090412B (en) * | 1979-11-09 | 1984-07-18 | Krautkraemer Gmbh | Ultrasonic testing |
| US4520327A (en) * | 1981-06-16 | 1985-05-28 | Roland Myers | Oscillator having manual and automatic frequency control |
| DE3166166D1 (en) * | 1981-06-24 | 1984-10-25 | Itt Ind Gmbh Deutsche | Colour television receiver comprising at least one integrated circuit for the digital processing of the fbas signal |
| US4494079A (en) * | 1981-12-09 | 1985-01-15 | The United States Of America As Represented By The Secretary Of The Army | Microprocessor controlled phase locked loops |
| JPH0754907B2 (ja) * | 1985-12-04 | 1995-06-07 | 富士通株式会社 | マイクロ波広帯域発振回路 |
| DE4108129C2 (de) * | 1991-03-13 | 1994-04-21 | Deutsche Forsch Luft Raumfahrt | Einrichtung zum Messen und Konstanthalten von Phasendifferenzen von Signalen mit unterschiedlichen Frequenzen |
| US20090207022A1 (en) * | 2008-02-19 | 2009-08-20 | M/A-Com, Inc. | RFID Asset Tracking Method and Apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3185938A (en) * | 1962-02-27 | 1965-05-25 | Louis V Pelosi | Vfo control for generating stable discrete frequencies |
-
1971
- 1971-12-22 DE DE2163971A patent/DE2163971C3/de not_active Expired
-
1972
- 1972-12-14 JP JP47125762A patent/JPS4871867A/ja active Pending
- 1972-12-15 IT IT32951/72A patent/IT971902B/it active
- 1972-12-15 US US00315504A patent/US3806825A/en not_active Expired - Lifetime
- 1972-12-15 FR FR7244766A patent/FR2164641B1/fr not_active Expired
- 1972-12-20 GB GB5883472A patent/GB1409290A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2163971C3 (de) | 1979-07-12 |
| DE2163971A1 (de) | 1973-06-28 |
| FR2164641A1 (it) | 1973-08-03 |
| US3806825A (en) | 1974-04-23 |
| DE2163971B2 (de) | 1978-11-16 |
| FR2164641B1 (it) | 1976-10-29 |
| JPS4871867A (it) | 1973-09-28 |
| GB1409290A (en) | 1975-10-08 |
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