DE2800253C2 - - Google Patents

Info

Publication number
DE2800253C2
DE2800253C2 DE19782800253 DE2800253A DE2800253C2 DE 2800253 C2 DE2800253 C2 DE 2800253C2 DE 19782800253 DE19782800253 DE 19782800253 DE 2800253 A DE2800253 A DE 2800253A DE 2800253 C2 DE2800253 C2 DE 2800253C2
Authority
DE
Germany
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
Application number
DE19782800253
Other versions
DE2800253A1 (de
Inventor
Ian Alistair Ward Bishops Stortford Hertfordshire Gb Vance
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.)
STC PLC
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE2800253A1 publication Critical patent/DE2800253A1/de
Application granted granted Critical
Publication of DE2800253C2 publication Critical patent/DE2800253C2/de
Granted legal-status Critical Current

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
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation
DE19782800253 1977-01-13 1978-01-04 Funkempfaenger Granted DE2800253A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB135877A GB1517121A (en) 1977-01-13 1977-01-13 Radio receiver for fsk signals

Publications (2)

Publication Number Publication Date
DE2800253A1 DE2800253A1 (de) 1978-07-20
DE2800253C2 true DE2800253C2 (de) 1987-01-15

Family

ID=9720633

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782800253 Granted DE2800253A1 (de) 1977-01-13 1978-01-04 Funkempfaenger

Country Status (4)

Country Link
BE (1) BE868898A (de)
DE (1) DE2800253A1 (de)
GB (1) GB1517121A (de)
HK (1) HK16283A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733967A1 (de) * 1987-10-08 1989-04-27 Bermbach Rainer Quadraturueberlagerungsverfahren zur demodulation des traegerfrequenten empfangssignals in funkuhrempfaengern

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032737A (en) * 1978-10-24 1980-05-08 Standard Telephones Cables Ltd Radio receiver for tone modulated signals
GB2057820B (en) * 1979-09-04 1984-07-04 Standard Telephones Cables Ltd Radio receiver for fsk signals
GB2141007B (en) * 1983-06-02 1986-07-23 Standard Telephones Cables Ltd Demodulator logic for frequency shift keyed signals
GB2143386B (en) * 1983-07-14 1987-01-14 Standard Telephones Cables Ltd Radio receiver
GB2155262B (en) * 1984-03-01 1988-01-20 Standard Telephones Cables Ltd Radio receiver
DE3412190C2 (de) * 1984-04-02 1986-12-18 Telefunken electronic GmbH, 7100 Heilbronn Integrierbare Empfängerschaltung
GB2173364B (en) * 1985-04-03 1988-10-05 Stc Plc Digital zero if circuit
US4605903A (en) * 1985-11-07 1986-08-12 Motorola, Inc. FSK demodulator with high noise immunity digital phase detector
GB2189114B (en) * 1986-02-12 1990-03-14 Plessey Co Plc Radio receivers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278559B (de) * 1966-04-30 1968-09-26 Standard Elektrik Lorenz Ag Empfaenger fuer frequenzmodulierte Signale
DE1616312B2 (de) * 1968-01-25 1973-10-18 Helmut 8000 Muenchen Spieler Einseitenbandübertragungseinrichtung nach der Dritten Methode
DE2358288A1 (de) * 1973-11-22 1975-06-05 Standard Elektrik Lorenz Ag Empfaenger fuer frequenzmodulierte hf-signale
GB1530602A (en) * 1975-10-14 1978-11-01 Standard Telephones Cables Ltd Demodulator for fm signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3733967A1 (de) * 1987-10-08 1989-04-27 Bermbach Rainer Quadraturueberlagerungsverfahren zur demodulation des traegerfrequenten empfangssignals in funkuhrempfaengern

Also Published As

Publication number Publication date
BE868898A (fr) 1978-11-03
DE2800253A1 (de) 1978-07-20
GB1517121A (en) 1978-07-12
HK16283A (en) 1983-05-20

Similar Documents

Publication Publication Date Title
DE2818706C2 (de)
DE2823531C2 (de)
FR2347682B1 (de)
DE2751651C2 (de)
FR2377286B1 (de)
DE2804948C2 (de)
FR2375983B1 (de)
AU3353778A (de)
DE2757622C2 (de)
AR210643A1 (de)
AU495917B2 (de)
DE2751507B2 (de)
BG25845A1 (de)
BG25834A1 (de)
BG26016A1 (de)
BG25870A1 (de)
BG25860A1 (de)
BG25855A1 (de)
BG25853A1 (de)
BG25852A1 (de)
BG25851A1 (de)
BG25850A1 (de)
BG25848A1 (de)
BG25811A1 (de)
CH613142A5 (de)

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8161 Application of addition to:

Ref document number: 2645950

Country of ref document: DE

Format of ref document f/p: P

AF Is addition to no.

Ref country code: DE

Ref document number: 2645950

Format of ref document f/p: P

D2 Grant after examination
8328 Change in the person/name/address of the agent

Free format text: GRAF, G., DIPL.-ING., PAT.-ASS., 7000 STUTTGART

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: STC PLC, LONDON, GB

8328 Change in the person/name/address of the agent

Free format text: WALLACH, C., DIPL.-ING. KOCH, G., DIPL.-ING. HAIBACH, T., DIPL.-PHYS. DR.RER.NAT. FELDKAMP, R., DIPL.-ING., PAT.-ANWAELTE, 8000 MUENCHEN

8340 Patent of addition ceased/non-payment of fee of main patent