FR50403E - Modulation process for t.s.f. - Google Patents

Modulation process for t.s.f.

Info

Publication number
FR50403E
FR50403E FR50403DA FR50403E FR 50403 E FR50403 E FR 50403E FR 50403D A FR50403D A FR 50403DA FR 50403 E FR50403 E FR 50403E
Authority
FR
France
Prior art keywords
modulation process
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 FR50403E publication Critical patent/FR50403E/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)
  • Microwave Amplifiers (AREA)
  • Transmitters (AREA)
FR50403D 1938-12-02 1938-12-29 Modulation process for t.s.f. Expired FR50403E (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR50403E true FR50403E (en) 1940-06-05

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 (1)

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.

Family Applications After (1)

Application Number Title Priority Date Filing Date
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.

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
NL79855C (en) * 1949-11-02
US2719190A (en) * 1950-10-27 1955-09-27 Bell Telephone Labor Inc High-efficiency translating circuit
NL170979B (en) * 1951-07-12 Keystone Int BUTTERFLY VALVE VALVE.
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
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
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
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
US7620129B2 (en) 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
WO2009005768A1 (en) 2007-06-28 2009-01-08 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
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
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. 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
US10187014B2 (en) 2014-10-07 2019-01-22 Telefonaktiebolaget Lm 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
US2282714A (en) 1942-05-12
DE759851C (en) 1952-11-10
NL57174C (en)
CH222396A (en) 1942-07-15
GB537076A (en) 1941-06-09
FR854015A (en) 1940-04-03
FR856319A (en) 1940-06-11
US2269518A (en) 1942-01-13

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