FR1469559A - Appareil de transmission de données à manipulation par déviation de fréquence - Google Patents

Appareil de transmission de données à manipulation par déviation de fréquence

Info

Publication number
FR1469559A
FR1469559A FR44592A FR44592A FR1469559A FR 1469559 A FR1469559 A FR 1469559A FR 44592 A FR44592 A FR 44592A FR 44592 A FR44592 A FR 44592A FR 1469559 A FR1469559 A FR 1469559A
Authority
FR
France
Prior art keywords
data transmission
transmission device
frequency deviation
manipulation data
manipulation
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
FR44592A
Other languages
English (en)
French (fr)
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
Priority claimed from US426847A external-priority patent/US3350575A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR1469559A publication Critical patent/FR1469559A/fr
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal 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
    • 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
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
FR44592A 1965-01-21 1966-01-03 Appareil de transmission de données à manipulation par déviation de fréquence Expired FR1469559A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US426847A US3350575A (en) 1965-01-21 1965-01-21 Application of triangular waveforms to exponential impedance means to produce sinusoidal waveforms
US44852165A 1965-04-15 1965-04-15

Publications (1)

Publication Number Publication Date
FR1469559A true FR1469559A (fr) 1967-02-17

Family

ID=27027201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR44592A Expired FR1469559A (fr) 1965-01-21 1966-01-03 Appareil de transmission de données à manipulation par déviation de fréquence

Country Status (5)

Country Link
BE (1) BE674337A (ja)
CH (1) CH447272A (ja)
DE (2) DE1462652C3 (ja)
FR (1) FR1469559A (ja)
GB (1) GB1123079A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028743B1 (de) * 1979-11-08 1983-06-08 Hewlett-Packard GmbH Schaltung zur Erzeugung einer Sinusschwingung aus einer Dreiecksschwingung

Also Published As

Publication number Publication date
DE1462652A1 (de) 1968-11-21
DE1462652C3 (de) 1974-03-07
CH447272A (de) 1967-11-30
DE1487327A1 (de) 1969-04-03
BE674337A (ja) 1966-04-15
GB1123079A (en) 1968-08-14
DE1462652B2 (de) 1973-08-16
DE1487327B2 (de) 1971-11-25

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