FR856319A - Method of mixed modulation by variation of amplitude and by phase shift for transmitters of t. s. f. - Google Patents

Method of mixed modulation by variation of amplitude and by phase shift for transmitters of t. s. f.

Info

Publication number
FR856319A
FR856319A FR856319DA FR856319A FR 856319 A FR856319 A FR 856319A FR 856319D A FR856319D A FR 856319DA FR 856319 A FR856319 A FR 856319A
Authority
FR
France
Prior art keywords
transmitters
amplitude
variation
phase shift
mixed modulation
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
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR856319A publication Critical patent/FR856319A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Microwave Amplifiers (AREA)
FR856319D 1938-12-02 1939-02-25 Method of mixed modulation by variation of amplitude and by phase shift for transmitters of t. s. f. Expired FR856319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR759851X 1938-12-02

Publications (1)

Publication Number Publication Date
FR856319A true FR856319A (en) 1940-06-11

Family

ID=9167474

Family Applications (3)

Application Number Title Priority Date Filing Date
FR854015D Expired FR854015A (en) 1938-12-02 1938-12-02 Modulation method for transmitter of t. s. f.
FR50403D Expired FR50403E (en) 1938-12-02 1938-12-29 Modulation process for t.s.f.
FR856319D Expired FR856319A (en) 1938-12-02 1939-02-25 Method of mixed modulation by variation of amplitude and by phase shift for transmitters of t. s. f.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR854015D Expired FR854015A (en) 1938-12-02 1938-12-02 Modulation method for transmitter of t. s. f.
FR50403D Expired FR50403E (en) 1938-12-02 1938-12-29 Modulation process for t.s.f.

Country Status (6)

Country Link
US (2) US2282714A (en)
CH (1) CH222396A (en)
DE (1) DE759851C (en)
FR (3) FR854015A (en)
GB (1) GB537076A (en)
NL (1) NL57174C (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL156682B (en) * 1949-11-02 Science Union & Cie PROCESS FOR THE PREPARATION OF MEDICINAL DIBENZOCYCLOALKYL DERIVATIVES, PROCESS FOR THE PREPARATION OF A MEDICINAL PRODUCT FROM THEIR AND FORMED MEDICINAL PRODUCT.
US2719190A (en) * 1950-10-27 1955-09-27 Bell Telephone Labor Inc High-efficiency translating circuit
BE524984A (en) * 1951-07-12
GB989329A (en) * 1964-01-16 1965-04-14 Standard Telephones Cables Ltd Electrical amplifying circuits
DE3906448C1 (en) * 1989-03-01 1990-03-15 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
US6334234B1 (en) * 1999-01-08 2002-01-01 Fantom Technologies Inc. Cleaner head for a vacuum cleaner
US7071775B2 (en) * 2004-06-21 2006-07-04 Motorola, Inc. Method and apparatus for an enhanced efficiency power amplifier
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
US7620129B2 (en) 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
WO2008156800A1 (en) * 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US7714649B1 (en) 2008-06-02 2010-05-11 Rockwell Collins, Inc. High-efficiency linear amplifier using non linear circuits
KR20140026458A (en) 2011-04-08 2014-03-05 파커비전, 인크. Systems and methods of rf power transmission, modulation, and amplification
JP6174574B2 (en) 2011-06-02 2017-08-02 パーカーヴィジョン インコーポレイテッド Antenna control
KR20160058855A (en) 2013-09-17 2016-05-25 파커비전, 인크. Method, apparatus and system for rendering an information bearing function of time
WO2016056956A1 (en) 2014-10-07 2016-04-14 Telefonaktiebolaget L M Ericsson (Publ) Driver circuit for composite power amplifier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL25389C (en) * 1926-05-10
FR39312E (en) * 1930-05-06 1931-10-12 Radio Electr Soc Fr Improvements in radio communication methods
DE598086C (en) * 1931-07-29 1934-06-05 Radio Electr Soc Fr Method for the wireless transmission of messages by means of two electric circuits fed by a generator and working in differential coupling on the antenna circuit
DE611876C (en) * 1934-02-04 1935-04-09 Radio Electr Soc Fr High-frequency transmission arrangement for modulated signals

Also Published As

Publication number Publication date
CH222396A (en) 1942-07-15
FR854015A (en) 1940-04-03
DE759851C (en) 1952-11-10
NL57174C (en)
US2269518A (en) 1942-01-13
GB537076A (en) 1941-06-09
US2282714A (en) 1942-05-12
FR50403E (en) 1940-06-05

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