GB2146861B - Digital frequency discriminator - Google Patents
Digital frequency discriminatorInfo
- Publication number
- GB2146861B GB2146861B GB08324665A GB8324665A GB2146861B GB 2146861 B GB2146861 B GB 2146861B GB 08324665 A GB08324665 A GB 08324665A GB 8324665 A GB8324665 A GB 8324665A GB 2146861 B GB2146861 B GB 2146861B
- Authority
- GB
- United Kingdom
- Prior art keywords
- digital frequency
- frequency discriminator
- discriminator
- digital
- frequency
- Prior art date
- 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.)
- Expired
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
- H03L7/187—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 using means for coarse tuning the voltage controlled oscillator of the loop
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)
-
- 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
- H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08324665A GB2146861B (en) | 1983-09-14 | 1983-09-14 | Digital frequency discriminator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08324665A GB2146861B (en) | 1983-09-14 | 1983-09-14 | Digital frequency discriminator |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8324665D0 GB8324665D0 (en) | 1983-10-19 |
GB2146861A GB2146861A (en) | 1985-04-24 |
GB2146861B true GB2146861B (en) | 1987-01-14 |
Family
ID=10548799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08324665A Expired GB2146861B (en) | 1983-09-14 | 1983-09-14 | Digital frequency discriminator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2146861B (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1063641A (en) * | 1964-06-01 | 1967-03-30 | Thorn Electronics Ltd | Improvements in frequency discriminators |
GB1188281A (en) * | 1966-01-21 | 1970-04-15 | Serck Controls Ltd | Improvements in or relating to Detection Means for Frequency Modulated Signals |
GB1183452A (en) * | 1966-02-17 | 1970-03-04 | Dawe Instr Ltd | Improvements in or relating to Speed Indicating Apparatus |
CH434431A (en) * | 1966-04-04 | 1967-04-30 | Paillard Sa | Electronic speed regulator of an electric motor |
GB1251374A (en) * | 1968-02-09 | 1971-10-27 |
-
1983
- 1983-09-14 GB GB08324665A patent/GB2146861B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2146861A (en) | 1985-04-24 |
GB8324665D0 (en) | 1983-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020914 |