SE452832B - Mottagare for mottagning av med frekvensskift overforda hogfrekvenssignaler - Google Patents

Mottagare for mottagning av med frekvensskift overforda hogfrekvenssignaler

Info

Publication number
SE452832B
SE452832B SE8104972A SE8104972A SE452832B SE 452832 B SE452832 B SE 452832B SE 8104972 A SE8104972 A SE 8104972A SE 8104972 A SE8104972 A SE 8104972A SE 452832 B SE452832 B SE 452832B
Authority
SE
Sweden
Prior art keywords
frequency
mixer
signals
transmitted
frequencies
Prior art date
Application number
SE8104972A
Other languages
English (en)
Swedish (sv)
Other versions
SE8104972L (sv
Inventor
P A K Moon
P E Chadwick
N C Thompson
Original Assignee
Plessey Overseas
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 Plessey Overseas filed Critical Plessey Overseas
Publication of SE8104972L publication Critical patent/SE8104972L/
Publication of SE452832B publication Critical patent/SE452832B/sv

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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Structure Of Receivers (AREA)
SE8104972A 1980-08-23 1981-08-21 Mottagare for mottagning av med frekvensskift overforda hogfrekvenssignaler SE452832B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8027511A GB2086158B (en) 1980-08-23 1980-08-23 Radio receiver

Publications (2)

Publication Number Publication Date
SE8104972L SE8104972L (sv) 1982-02-24
SE452832B true SE452832B (sv) 1987-12-14

Family

ID=10515636

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8104972A SE452832B (sv) 1980-08-23 1981-08-21 Mottagare for mottagning av med frekvensskift overforda hogfrekvenssignaler

Country Status (7)

Country Link
DE (1) DE3132233A1 (da)
DK (1) DK155066C (da)
FR (1) FR2489059B1 (da)
GB (1) GB2086158B (da)
HK (1) HK48485A (da)
NO (1) NO152190C (da)
SE (1) SE452832B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580101A (en) * 1983-04-06 1986-04-01 Multitone Electronics Plc FM demodulators with local oscillator frequency control circuits
GB2137836B (en) * 1983-04-06 1986-07-23 Multitone Electronics Plc Fm demodulators
GB2146876B (en) * 1983-09-14 1987-03-04 Plessey Co Plc Fsk radio receiver
SE470077B (sv) * 1992-03-30 1993-11-01 Ericsson Ge Mobile Communicat Metod och anordning för demodulering av en frekvensmodulerad signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1172977A (en) * 1965-11-23 1969-12-03 Plessey Co Ltd Improvements in or relating to Demodulation Systems
US3414826A (en) * 1967-04-03 1968-12-03 Gen Electric Voltage-controlled oscillator
JPS5831065B2 (ja) * 1976-04-09 1983-07-04 日本電気株式会社 Ｆｓｋ復調装置
GB2076238B (en) * 1980-05-16 1983-11-30 Plessey Co Ltd Radio receiver

Also Published As

Publication number Publication date
FR2489059B1 (fr) 1986-07-18
NO152190B (no) 1985-05-06
DK155066C (da) 1989-07-03
DE3132233C2 (da) 1991-10-02
HK48485A (en) 1985-06-28
FR2489059A1 (fr) 1982-02-26
GB2086158A (en) 1982-05-06
NO152190C (no) 1985-08-14
GB2086158B (en) 1984-05-02
SE8104972L (sv) 1982-02-24
NO812770L (no) 1982-02-24
DE3132233A1 (de) 1982-06-24
DK365181A (da) 1982-02-24
DK155066B (da) 1989-01-30

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