FR2391592A1 - Modulateur d'amplitude - Google Patents

Modulateur d'amplitude

Info

Publication number
FR2391592A1
FR2391592A1 FR7814267A FR7814267A FR2391592A1 FR 2391592 A1 FR2391592 A1 FR 2391592A1 FR 7814267 A FR7814267 A FR 7814267A FR 7814267 A FR7814267 A FR 7814267A FR 2391592 A1 FR2391592 A1 FR 2391592A1
Authority
FR
France
Prior art keywords
amplitude modulator
modulating
signal
amplitude
attenuate
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.)
Granted
Application number
FR7814267A
Other languages
English (en)
Other versions
FR2391592B1 (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.)
Lockheed Martin Corp
Original Assignee
Sanders Associates 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 Sanders Associates Inc filed Critical Sanders Associates Inc
Publication of FR2391592A1 publication Critical patent/FR2391592A1/fr
Application granted granted Critical
Publication of FR2391592B1 publication Critical patent/FR2391592B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation

Landscapes

  • Amplitude Modulation (AREA)
  • Amplifiers (AREA)
  • Attenuators (AREA)
  • Networks Using Active Elements (AREA)

Abstract

L'invention concerne un appareil de modulation d'un signal en amplitude. Il comporte un ou plusieurs commutateurs à inversion de phase qui reçoivent un signal d'entrée et un signal rectangulaire de modulation dont phase et le rapport d'impulsions peuvent être réglés de manière à atténuer la puissance transmise à la fréquence centrale. L'invention s'applique notamment à des émetteurs à modulation d'amplitude par tout ou rien.
FR7814267A 1977-05-16 1978-05-12 Modulateur d'amplitude Granted FR2391592A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79765077A 1977-05-16 1977-05-16

Publications (2)

Publication Number Publication Date
FR2391592A1 true FR2391592A1 (fr) 1978-12-15
FR2391592B1 FR2391592B1 (fr) 1983-07-29

Family

ID=25171442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814267A Granted FR2391592A1 (fr) 1977-05-16 1978-05-12 Modulateur d'amplitude

Country Status (9)

Country Link
US (1) US4149123A (fr)
JP (1) JPS53142156A (fr)
CA (1) CA1126354A (fr)
CH (1) CH629345A5 (fr)
DE (1) DE2820072A1 (fr)
FR (1) FR2391592A1 (fr)
GB (1) GB1603592A (fr)
IT (1) IT1095023B (fr)
NL (1) NL7805100A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201559A (en) * 1987-01-23 1988-09-01 Gen Electric Plc Electrical signal mixer circuit
JPS63183051A (ja) * 1987-01-26 1988-07-28 高津　寿夫 歯科用粘着性成形材料のための超音波振動応用填塞付形方法
DE4027703A1 (de) * 1990-08-31 1992-03-12 Fraunhofer Ges Forschung Integrierbarer schaltermodulator
JPH0519914A (ja) * 1991-07-17 1993-01-29 Sharp Corp 半導体装置の内部降圧回路
US10382246B2 (en) * 2014-01-07 2019-08-13 Quantumsine Acquisitions Inc. Combined amplitude-time and phase modulation
US11140018B2 (en) * 2014-01-07 2021-10-05 Quantumsine Acquisitions Inc. Method and apparatus for intra-symbol multi-dimensional modulation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952812A (en) * 1956-01-27 1960-09-13 California Research Corp Pulse modulation function multiplier
US3181074A (en) * 1962-08-24 1965-04-27 Itt Compandor
US3348145A (en) * 1963-10-18 1967-10-17 Test Equipment Corp Apparatus for testing and measuring a. c. parameters of active elements connected incircuit
FR91302E (fr) * 1958-02-28 1968-05-24 Cie Ind De Telecomm Dispositif de réglage du gain ou de l'affaiblissement d'une onde électrique utilisant une modulation de phase et particulièrement applicable aux systèmes de compression-extension
FR1586135A (fr) * 1968-07-19 1970-02-13

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL236607A (fr) * 1958-02-28
US3201700A (en) * 1961-05-10 1965-08-17 Itt Phase shifting system
NL288320A (fr) * 1963-01-29
US3260966A (en) * 1963-09-16 1966-07-12 Midwestern Instr Inc Bias controlled amplitude modulator
US3973223A (en) * 1969-10-15 1976-08-03 Nippon Gakki Seizo Kabushiki Kaisha Frequency-deviation method and apparatus
US3624560A (en) * 1969-12-16 1971-11-30 Gen Electric Modulation technique for a limited energy speech transmission system employing phase reversal of alternate pulses
US3662290A (en) * 1970-08-05 1972-05-09 Collins Radio Co Automatic control for amplitude-modulated signal source
GB1399399A (en) * 1972-10-14 1975-07-02 Solartron Electronic Group Attenuators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952812A (en) * 1956-01-27 1960-09-13 California Research Corp Pulse modulation function multiplier
FR91302E (fr) * 1958-02-28 1968-05-24 Cie Ind De Telecomm Dispositif de réglage du gain ou de l'affaiblissement d'une onde électrique utilisant une modulation de phase et particulièrement applicable aux systèmes de compression-extension
US3181074A (en) * 1962-08-24 1965-04-27 Itt Compandor
US3348145A (en) * 1963-10-18 1967-10-17 Test Equipment Corp Apparatus for testing and measuring a. c. parameters of active elements connected incircuit
FR1586135A (fr) * 1968-07-19 1970-02-13

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
US4149123A (en) 1979-04-10
CA1126354A (fr) 1982-06-22
JPS53142156A (en) 1978-12-11
FR2391592B1 (fr) 1983-07-29
DE2820072A1 (de) 1978-11-30
IT7823344A0 (it) 1978-05-12
GB1603592A (en) 1981-11-25
IT1095023B (it) 1985-08-10
JPS6151807B2 (fr) 1986-11-11
NL7805100A (nl) 1978-11-20
CH629345A5 (it) 1982-04-15

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Legal Events

Date Code Title Description
ST Notification of lapse