DE1591229B1 - Frequenzdiskriminator - Google Patents

Frequenzdiskriminator

Info

Publication number
DE1591229B1
DE1591229B1 DE19671591229 DE1591229A DE1591229B1 DE 1591229 B1 DE1591229 B1 DE 1591229B1 DE 19671591229 DE19671591229 DE 19671591229 DE 1591229 A DE1591229 A DE 1591229A DE 1591229 B1 DE1591229 B1 DE 1591229B1
Authority
DE
Germany
Prior art keywords
frequency
input
frequencies
output
frequency discriminator
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Withdrawn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
DE19671591229
Other languages
German (de)
English (en)
Inventor
French Walter Kennedy
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 Business Machines Corp filed Critical International Business Machines Corp
Publication of DE1591229B1 publication Critical patent/DE1591229B1/de
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Sorting Of Articles (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Paper (AREA)
  • Telephone Function (AREA)
DE19671591229 1967-01-06 1967-12-15 Frequenzdiskriminator Withdrawn DE1591229B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60779467A 1967-01-06 1967-01-06

Publications (1)

Publication Number Publication Date
DE1591229B1 true DE1591229B1 (de) 1971-02-25

Family

ID=24433728

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671591229 Withdrawn DE1591229B1 (de) 1967-01-06 1967-12-15 Frequenzdiskriminator

Country Status (9)

Country Link
US (1) US3493934A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE708440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH469409A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1591229B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES348968A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1549841A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1142426A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL156004B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE336001B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858117A (en) * 1973-01-29 1974-12-31 Adar Inc Radio teletype detector circuit
GB1505828A (en) * 1974-04-04 1978-03-30 Nat Res Dev Calling aids
AU518265B2 (en) 1977-05-16 1981-09-24 Enertec Ripple control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154838B (de) * 1961-05-05 1963-09-26 Standard Elektrik Lorenz Ag Verfahren zum Empfang von tonfrequenten Codezeichen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341815A (en) * 1962-12-31 1967-09-12 Bunker Ramo Frequency responsive receiving system with noise prevention

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154838B (de) * 1961-05-05 1963-09-26 Standard Elektrik Lorenz Ag Verfahren zum Empfang von tonfrequenten Codezeichen

Also Published As

Publication number Publication date
BE708440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-05-02
CH469409A (de) 1969-02-28
GB1142426A (en) 1969-02-05
SE336001B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-06-21
NL156004B (nl) 1978-02-15
FR1549841A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-12-13
NL6717776A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-07-08
US3493934A (en) 1970-02-03
ES348968A1 (es) 1969-03-16

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee