NO811615L - Radiomottager. - Google Patents

Radiomottager.

Info

Publication number
NO811615L
NO811615L NO811615A NO811615A NO811615L NO 811615 L NO811615 L NO 811615L NO 811615 A NO811615 A NO 811615A NO 811615 A NO811615 A NO 811615A NO 811615 L NO811615 L NO 811615L
Authority
NO
Norway
Prior art keywords
detector
signal
frequency
local oscillator
mixer
Prior art date
Application number
NO811615A
Other languages
English (en)
Norwegian (no)
Inventor
Philip Albert Kenneth Moon
Peter Edward Chadwick
Norman Cameron 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 NO811615L publication Critical patent/NO811615L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Circuits Of Receivers In General (AREA)
NO811615A 1980-05-16 1981-05-12 Radiomottager. NO811615L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8016220 1980-05-16
GB8028339A GB2076238B (en) 1980-05-16 1980-09-02 Radio receiver

Publications (1)

Publication Number Publication Date
NO811615L true NO811615L (no) 1981-11-17

Family

ID=26275533

Family Applications (1)

Application Number Title Priority Date Filing Date
NO811615A NO811615L (no) 1980-05-16 1981-05-12 Radiomottager.

Country Status (6)

Country Link
DE (1) DE3118852A1 ( )
DK (1) DK215781A ( )
FR (1) FR2482804A1 ( )
GB (1) GB2076238B ( )
NO (1) NO811615L ( )
SE (1) SE8103035L ( )

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2086158B (en) * 1980-08-23 1984-05-02 Plessey Co Ltd Radio receiver
US4628518A (en) * 1981-08-20 1986-12-09 Plessey Overseas Limited Radio receiver
GB2146876B (en) * 1983-09-14 1987-03-04 Plessey Co Plc Fsk radio receiver
US5414736A (en) * 1991-08-12 1995-05-09 Matsushita Electric Industrial Co., Ltd. FSK data receiving system
GB9603660D0 (en) * 1996-02-21 1996-04-17 Cedardell Ltd Fm detection apparatus and method
CN1156987C (zh) * 1996-05-28 2004-07-07 皇家菲利浦电子有限公司 一种接收机,一种解调器和一种解调方法
US7308024B2 (en) 2000-02-28 2007-12-11 Thomson Licensing Modulation scheme for FDD/TDD transceivers
USD1014954S1 (en) * 2023-06-21 2024-02-20 Nike, Inc. Shoe

Family Cites Families (3)

* 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
DK120711B (da) * 1969-03-11 1971-07-05 Storno As Elektrisk kredsløb til detektering af et tonesignal.
US3899741A (en) * 1973-11-12 1975-08-12 Cermetek Inc Frequency shift keyed detector

Also Published As

Publication number Publication date
GB2076238A (en) 1981-11-25
DK215781A (da) 1981-11-17
FR2482804A1 (fr) 1981-11-20
DE3118852A1 (de) 1982-03-04
SE8103035L (sv) 1981-11-17
GB2076238B (en) 1983-11-30

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