FR2482804A1 - Recepteur radioelectrique a modulation de frequence - Google Patents

Recepteur radioelectrique a modulation de frequence Download PDF

Info

Publication number
FR2482804A1
FR2482804A1 FR8109753A FR8109753A FR2482804A1 FR 2482804 A1 FR2482804 A1 FR 2482804A1 FR 8109753 A FR8109753 A FR 8109753A FR 8109753 A FR8109753 A FR 8109753A FR 2482804 A1 FR2482804 A1 FR 2482804A1
Authority
FR
France
Prior art keywords
frequency
detector
signal
mixer
receiver
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.)
Withdrawn
Application number
FR8109753A
Other languages
English (en)
French (fr)
Inventor
Philip Albert Kenneth Moon
Peter Edward Chadwick
Norman Cameron Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas Ltd
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 Ltd filed Critical Plessey Overseas Ltd
Publication of FR2482804A1 publication Critical patent/FR2482804A1/fr
Withdrawn legal-status Critical Current

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)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FR8109753A 1980-05-16 1981-05-15 Recepteur radioelectrique a modulation de frequence Withdrawn FR2482804A1 (fr)

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
FR2482804A1 true FR2482804A1 (fr) 1981-11-20

Family

ID=26275533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8109753A Withdrawn FR2482804A1 (fr) 1980-05-16 1981-05-15 Recepteur radioelectrique a modulation de frequence

Country Status (6)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489059A1 (fr) * 1980-08-23 1982-02-26 Plessey Overseas Recepteur radioelectrique a modulation de frequence et commutateur de commande
EP0527469A2 (en) * 1991-08-12 1993-02-17 Matsushita Electric Industrial Co., Ltd. FSK data receiving system
WO1997031465A2 (en) * 1996-02-21 1997-08-28 Cedardell Limited Frequency control in an fsk receiver

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3902662B2 (ja) * 1996-05-28 2007-04-11 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 受信機、復調器および復調方法
CA2401180C (en) 2000-02-28 2010-10-26 Chandra Mohan A modulation scheme for fdd/tdd transceivers
USD1014954S1 (en) * 2023-06-21 2024-02-20 Nike, Inc. Shoe

Citations (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
DE2010018A1 (de) * 1969-03-11 1970-10-01 Storno A/S, Kopenhagen Elektrische Schaltung zum Erfassen eines Tonsignals
US3899741A (en) * 1973-11-12 1975-08-12 Cermetek Inc Frequency shift keyed detector

Patent Citations (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
DE2010018A1 (de) * 1969-03-11 1970-10-01 Storno A/S, Kopenhagen Elektrische Schaltung zum Erfassen eines Tonsignals
US3899741A (en) * 1973-11-12 1975-08-12 Cermetek Inc Frequency shift keyed detector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489059A1 (fr) * 1980-08-23 1982-02-26 Plessey Overseas Recepteur radioelectrique a modulation de frequence et commutateur de commande
EP0527469A2 (en) * 1991-08-12 1993-02-17 Matsushita Electric Industrial Co., Ltd. FSK data receiving system
EP0527469A3 (no) * 1991-08-12 1994-04-27 Matsushita Electric Ind Co Ltd
US5414736A (en) * 1991-08-12 1995-05-09 Matsushita Electric Industrial Co., Ltd. FSK data receiving system
EP0887978A2 (en) * 1991-08-12 1998-12-30 Matsushita Electric Industrial Co., Ltd FSK data receiving system
EP0887978A3 (en) * 1991-08-12 1999-11-17 Matsushita Electric Industrial Co., Ltd FSK data receiving system
WO1997031465A2 (en) * 1996-02-21 1997-08-28 Cedardell Limited Frequency control in an fsk receiver
WO1997031465A3 (en) * 1996-02-21 1997-10-23 Cedardell Ltd Frequency control in an fsk receiver

Also Published As

Publication number Publication date
GB2076238A (en) 1981-11-25
SE8103035L (sv) 1981-11-17
DK215781A (da) 1981-11-17
NO811615L (no) 1981-11-17
DE3118852A1 (de) 1982-03-04
GB2076238B (en) 1983-11-30

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Legal Events

Date Code Title Description
ST Notification of lapse