SE453239B - Anordning for kompensering av frekvensvariationer i fm-system - Google Patents
Anordning for kompensering av frekvensvariationer i fm-systemInfo
- Publication number
- SE453239B SE453239B SE8103213A SE8103213A SE453239B SE 453239 B SE453239 B SE 453239B SE 8103213 A SE8103213 A SE 8103213A SE 8103213 A SE8103213 A SE 8103213A SE 453239 B SE453239 B SE 453239B
- Authority
- SE
- Sweden
- Prior art keywords
- input
- control loop
- output
- loop
- filter
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
- H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
- H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3022287A DE3022287C2 (de) | 1980-06-13 | 1980-06-13 | Schaltung zur Kompensation von Frequenzschwankungen in FM-Systemen |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8103213L SE8103213L (sv) | 1981-12-14 |
SE453239B true SE453239B (sv) | 1988-01-18 |
Family
ID=6104590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8103213A SE453239B (sv) | 1980-06-13 | 1981-05-21 | Anordning for kompensering av frekvensvariationer i fm-system |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3022287C2 (de) |
DK (1) | DK151995C (de) |
FI (1) | FI72626C (de) |
NO (1) | NO154029C (de) |
SE (1) | SE453239B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1175490A (en) * | 1982-03-12 | 1984-10-02 | Ralph T. Carsten | Frequency shift keying demodulators |
DE3324311A1 (de) * | 1983-07-06 | 1985-01-17 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Decoder fuer ein frequenzgetastetes signal, insbesondere ein fsk-bildschirmtext-signal |
AU3290084A (en) * | 1983-09-16 | 1985-03-21 | Audicom Corp. | Encoding of transmitted program material |
US10862720B2 (en) | 2018-10-08 | 2020-12-08 | Nxp B.V. | Phase locked loop frequency shift keying demodulator using an auxiliary charge pump and a differential slicer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860874A (en) * | 1973-12-04 | 1975-01-14 | Us Interior | Receiver for dfsk signals |
-
1980
- 1980-06-13 DE DE3022287A patent/DE3022287C2/de not_active Expired
-
1981
- 1981-05-21 SE SE8103213A patent/SE453239B/sv not_active IP Right Cessation
- 1981-06-10 NO NO811963A patent/NO154029C/no unknown
- 1981-06-12 FI FI811848A patent/FI72626C/fi not_active IP Right Cessation
- 1981-06-12 DK DK257981A patent/DK151995C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI72626C (fi) | 1987-06-08 |
DE3022287A1 (de) | 1981-12-17 |
SE8103213L (sv) | 1981-12-14 |
FI72626B (fi) | 1987-02-27 |
NO154029C (no) | 1986-07-02 |
DK151995B (da) | 1988-01-18 |
DK151995C (da) | 1988-08-08 |
DE3022287C2 (de) | 1982-06-24 |
DK257981A (da) | 1981-12-14 |
NO811963L (no) | 1981-12-14 |
FI811848L (fi) | 1981-12-14 |
NO154029B (no) | 1986-03-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8103213-8 Effective date: 19900518 Format of ref document f/p: F |