GB1458994A - Demodulators for frequency shift keyed signals - Google Patents

Demodulators for frequency shift keyed signals

Info

Publication number
GB1458994A
GB1458994A GB2828574A GB2828574A GB1458994A GB 1458994 A GB1458994 A GB 1458994A GB 2828574 A GB2828574 A GB 2828574A GB 2828574 A GB2828574 A GB 2828574A GB 1458994 A GB1458994 A GB 1458994A
Authority
GB
United Kingdom
Prior art keywords
output
count
store
produces
pulse
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.)
Expired
Application number
GB2828574A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Publication of GB1458994A publication Critical patent/GB1458994A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • 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)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB2828574A 1973-07-02 1974-06-26 Demodulators for frequency shift keyed signals Expired GB1458994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732333571 DE2333571A1 (de) 1973-07-02 1973-07-02 Demodulator fuer frequenzmodulierte signale

Publications (1)

Publication Number Publication Date
GB1458994A true GB1458994A (en) 1976-12-22

Family

ID=5885706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2828574A Expired GB1458994A (en) 1973-07-02 1974-06-26 Demodulators for frequency shift keyed signals

Country Status (9)

Country Link
BE (1) BE817174A (enrdf_load_stackoverflow)
CH (1) CH567837A5 (enrdf_load_stackoverflow)
DE (1) DE2333571A1 (enrdf_load_stackoverflow)
DK (1) DK353374A (enrdf_load_stackoverflow)
FR (1) FR2236306B1 (enrdf_load_stackoverflow)
GB (1) GB1458994A (enrdf_load_stackoverflow)
IT (1) IT1015491B (enrdf_load_stackoverflow)
NL (1) NL7408861A (enrdf_load_stackoverflow)
SE (1) SE7408406L (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831152B2 (ja) * 1977-10-17 1983-07-04 ソニー株式会社 カラ−映像信号の処理回路
DE3419931A1 (de) * 1984-05-28 1985-11-28 Siemens AG, 1000 Berlin und 8000 München Empfangsschaltung in einer datenuebertragungseinrichtung zur tonfrequenten datenuebertragung
SU1737737A1 (ru) * 1986-05-29 1992-05-30 Всесоюзный научно-исследовательский институт радиовещательного приема и акустики им.А.С.Попова Устройство преобразовани частотно-модулированного аналогового сигнала в цифровой сигнал
JPH01501111A (ja) * 1986-10-24 1989-04-13 フセソユズニ　ナウチノ―イススレドバテルスキ　インスティテュト　ラディオベシャテルノゴ　プリエマ　イ　アクスティキ　イメニ　アー．エス．ポポバ ディジタル処理を伴う周波数変調されたアナログ信号の受信方法及びそれを実行するための装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061798A5 (enrdf_load_stackoverflow) * 1969-02-14 1971-06-25 Lignes Telegraph Telephon

Also Published As

Publication number Publication date
CH567837A5 (enrdf_load_stackoverflow) 1975-10-15
FR2236306A1 (enrdf_load_stackoverflow) 1975-01-31
IT1015491B (it) 1977-05-10
NL7408861A (nl) 1975-01-06
FR2236306B1 (enrdf_load_stackoverflow) 1977-03-11
BE817174A (fr) 1975-01-02
DE2333571A1 (de) 1975-01-23
SE7408406L (enrdf_load_stackoverflow) 1975-01-03
DK353374A (enrdf_load_stackoverflow) 1975-03-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee