FR2273284A1 - - Google Patents
Info
- Publication number
- FR2273284A1 FR2273284A1 FR7503808A FR7503808A FR2273284A1 FR 2273284 A1 FR2273284 A1 FR 2273284A1 FR 7503808 A FR7503808 A FR 7503808A FR 7503808 A FR7503808 A FR 7503808A FR 2273284 A1 FR2273284 A1 FR 2273284A1
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
-
- 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
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
- H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
- H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2413604A DE2413604A1 (de) | 1974-03-21 | 1974-03-21 | Phasenverriegelte regelschleife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2273284A1 true FR2273284A1 (forum.php) | 1975-12-26 |
| FR2273284B1 FR2273284B1 (forum.php) | 1979-08-24 |
Family
ID=5910739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7503808A Expired FR2273284B1 (forum.php) | 1974-03-21 | 1975-02-07 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3983497A (forum.php) |
| AT (1) | AT349061B (forum.php) |
| CH (1) | CH588737A5 (forum.php) |
| FR (1) | FR2273284B1 (forum.php) |
| IT (1) | IT1032354B (forum.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493094A (en) * | 1982-08-26 | 1985-01-08 | At&T Bell Laboratories | Clock phase control with time distribution of phase corrections |
| US4795985A (en) * | 1986-04-01 | 1989-01-03 | Hewlett-Packard Company | Digital phase lock loop |
| US4829258A (en) * | 1987-09-03 | 1989-05-09 | Intel Corporation | Stabilized phase locked loop |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337814A (en) * | 1966-08-23 | 1967-08-22 | Collins Radio Co | Phase comparator for use in frequency synthesizer phase locked loop |
| US3354403A (en) * | 1966-11-23 | 1967-11-21 | Collins Radio Co | Counter step-down frequency synthesizer |
| US3611175A (en) * | 1970-03-26 | 1971-10-05 | Sylvania Electric Prod | Search circuit for frequency synthesizer |
| US3714589A (en) * | 1971-12-01 | 1973-01-30 | R Lewis | Digitally controlled phase shifter |
| US3781695A (en) * | 1972-05-04 | 1973-12-25 | Westinghouse Electric Corp | Digital phase-locked-loop |
| US3805192A (en) * | 1972-08-09 | 1974-04-16 | Electronic Communications | Frequency modulator-variable frequency generator |
| US3849736A (en) * | 1973-11-19 | 1974-11-19 | Dana Corp | Frequency synthesizer having frequency control loop with keyed fixed frequency oscillator |
-
1974
- 1974-11-21 CH CH1550274A patent/CH588737A5/xx not_active IP Right Cessation
-
1975
- 1975-02-07 FR FR7503808A patent/FR2273284B1/fr not_active Expired
- 1975-03-10 US US05/557,040 patent/US3983497A/en not_active Expired - Lifetime
- 1975-03-18 IT IT48667/75A patent/IT1032354B/it active
- 1975-03-20 AT AT214075A patent/AT349061B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2273284B1 (forum.php) | 1979-08-24 |
| CH588737A5 (forum.php) | 1977-06-15 |
| ATA214075A (de) | 1978-08-15 |
| IT1032354B (it) | 1979-05-30 |
| US3983497A (en) | 1976-09-28 |
| AT349061B (de) | 1979-03-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |