FR980994A - Perfectionnements aux modulateurs - Google Patents

Perfectionnements aux modulateurs

Info

Publication number
FR980994A
FR980994A FR980994DA FR980994A FR 980994 A FR980994 A FR 980994A FR 980994D A FR980994D A FR 980994DA FR 980994 A FR980994 A FR 980994A
Authority
FR
France
Prior art keywords
modulators
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
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR980994A publication Critical patent/FR980994A/fr
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/14—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with amplifying devices having more than three electrodes or more than two PN junctions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Amplifiers (AREA)
  • Bipolar Transistors (AREA)
FR980994D 1948-05-19 1949-02-16 Perfectionnements aux modulateurs Expired FR980994A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27890A US2476323A (en) 1948-05-19 1948-05-19 Multielectrode modulator

Publications (1)

Publication Number Publication Date
FR980994A true FR980994A (fr) 1951-05-21

Family

ID=21840356

Family Applications (1)

Application Number Title Priority Date Filing Date
FR980994D Expired FR980994A (fr) 1948-05-19 1949-02-16 Perfectionnements aux modulateurs

Country Status (4)

Country Link
US (1) US2476323A (en(2012))
FR (1) FR980994A (en(2012))
GB (1) GB694026A (en(2012))
NL (1) NL75792C (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017220B (de) * 1952-08-15 1957-10-10 Western Electric Co Modulator mit Vierelektroden-Transistor

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US2644914A (en) * 1949-08-17 1953-07-07 Bell Telephone Labor Inc Multicontact semiconductor translating device
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US2570436A (en) * 1949-09-30 1951-10-09 Rca Corp Crystal controlled oscillator
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US2605306A (en) * 1949-10-15 1952-07-29 Rca Corp Semiconductor multivibrator circuit
US2647958A (en) * 1949-10-25 1953-08-04 Bell Telephone Labor Inc Voltage and current bias of transistors
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US2645683A (en) * 1949-12-17 1953-07-14 Rca Corp Electromechanical transducer
US2627575A (en) * 1950-02-18 1953-02-03 Bell Telephone Labor Inc Semiconductor translating device
US2675433A (en) * 1950-04-27 1954-04-13 Rca Corp Degenerative amplifier
US2666150A (en) * 1950-05-04 1954-01-12 Ibm Crystal tetrode
US2713665A (en) * 1950-11-09 1955-07-19 Bell Telephone Labor Inc Transistor modulator circuits
US2644925A (en) * 1950-12-29 1953-07-07 Rca Corp Semiconductor amplitude modulation system
US2702316A (en) * 1951-02-28 1955-02-15 Rca Corp Signal modulation system
US2701302A (en) * 1951-03-29 1955-02-01 Rca Corp Semiconductor frequency converter
US2794863A (en) * 1951-07-20 1957-06-04 Bell Telephone Labor Inc Semiconductor translating device and circuit
US2702838A (en) * 1951-11-15 1955-02-22 Bell Telephone Labor Inc Semiconductor signal translating device
US2776381A (en) * 1952-01-25 1957-01-01 Bell Telephone Labor Inc Multielectrode semiconductor circuit element
US2676271A (en) * 1952-01-25 1954-04-20 Bell Telephone Labor Inc Transistor gate
US2693568A (en) * 1952-03-05 1954-11-02 Bell Telephone Labor Inc Current and voltage regulation
BE519804A (en(2012)) * 1952-05-09
NL191850A (en(2012)) * 1952-10-09
US2717342A (en) * 1952-10-28 1955-09-06 Bell Telephone Labor Inc Semiconductor translating devices
US2801389A (en) * 1952-11-18 1957-07-30 Ernest G Linder High energy bombardment-inducedconductivity control of electrical circuits
NL174268B (nl) * 1952-12-01 Ici Ltd Werkwijze voor het extraheren van metalen uit een oplossing in water, alsmede werkwijze voor het bereiden van de daarbij te gebruiken 5-nonylsalicylaldoximen.
US2801347A (en) * 1953-03-17 1957-07-30 Rca Corp Multi-electrode semiconductor devices
US2901638A (en) * 1953-07-21 1959-08-25 Sylvania Electric Prod Transistor switching circuit
US2915646A (en) * 1953-12-04 1959-12-01 Rca Corp Semiconductor devices and system
US2906889A (en) * 1953-12-31 1959-09-29 Ibm Binary trigger circuit employing single transistor
NL195088A (en(2012)) * 1954-02-26
US2884545A (en) * 1954-03-17 1959-04-28 Gen Precision Lab Inc Transistor protection circuit
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US2904704A (en) * 1954-06-17 1959-09-15 Gen Electric Semiconductor devices
NL201086A (en(2012)) * 1954-10-11
US2995665A (en) * 1955-05-20 1961-08-08 Ibm Transistors and circuits therefor
US2941092A (en) * 1955-10-25 1960-06-14 Philips Corp Pulse delay circuit
US2939965A (en) * 1956-12-20 1960-06-07 Abraham George Electrical switching circuit
US3097308A (en) * 1959-03-09 1963-07-09 Rca Corp Semiconductor device with surface electrode producing electrostatic field and circuits therefor
US3091703A (en) * 1959-04-08 1963-05-28 Raytheon Co Semiconductor devices utilizing carrier injection into a space charge region
NL130600C (en(2012)) * 1960-03-22
US3169222A (en) * 1960-12-30 1965-02-09 Rca Corp Double-emitter transistor circuits
DE1223954B (de) * 1962-11-16 1966-09-01 Siemens Ag Halbleiterstromtor mit vier Zonen abwechselnd entgegengesetzten Leitungstyps und einer Steuerelektrode
US3351782A (en) * 1965-04-01 1967-11-07 Motorola Inc Multiple emitter transistorized logic circuitry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017220B (de) * 1952-08-15 1957-10-10 Western Electric Co Modulator mit Vierelektroden-Transistor

Also Published As

Publication number Publication date
GB694026A (en) 1953-07-15
NL75792C (en(2012))
US2476323A (en) 1949-07-19

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