BE499490A - - Google Patents

Info

Publication number
BE499490A
BE499490A BE499490DA BE499490A BE 499490 A BE499490 A BE 499490A BE 499490D A BE499490D A BE 499490DA BE 499490 A BE499490 A BE 499490A
Authority
BE
Belgium
Application number
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.)
Publication of BE499490A publication Critical patent/BE499490A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
BE499490D 1949-12-02 BE499490A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR686937X 1949-12-02

Publications (1)

Publication Number Publication Date
BE499490A true BE499490A (fr)

Family

ID=9025852

Family Applications (1)

Application Number Title Priority Date Filing Date
BE499490D BE499490A (fr) 1949-12-02

Country Status (4)

Country Link
US (1) US2670404A (fr)
BE (1) BE499490A (fr)
DE (1) DE842507C (fr)
GB (1) GB686937A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512160A (en) * 1960-12-29 1970-05-12 Bell Telephone Labor Inc Multiplex transmission systems
US7327803B2 (en) * 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
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
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
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 (fr) 2007-06-19 2008-12-24 Parkervision, Inc. Amplification à entrées multiples et à sortie unique (miso) sans combinateur avec contrôle mélangé
WO2009005768A1 (fr) * 2007-06-28 2009-01-08 Parkervision, Inc. Systèmes et procédés de transmission, de modulation et d'amplification de puissance hf
WO2009145887A1 (fr) * 2008-05-27 2009-12-03 Parkervision, Inc. Systèmes et procédés de transmission, de modulation et d'amplification de puissance radioélectrique (rf)
KR20140026458A (ko) 2011-04-08 2014-03-05 파커비전, 인크. Ｒｆ 전력 송신, 변조 및 증폭 시스템들 및 방법들
KR20140034895A (ko) 2011-06-02 2014-03-20 파커비전, 인크. 안테나 제어
EP3047348A4 (fr) 2013-09-17 2016-09-07 Parkervision Inc Procédé, appareil et système servant à restituer une fonction porteuse d'information sur le temps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559867A (en) * 1919-08-29 1925-11-03 Western Electric Co Wave-transmission system
US1361522A (en) * 1920-03-18 1920-12-07 American Telephone & Telegraph Plural modulation system
US1361488A (en) * 1920-03-31 1920-12-07 American Telephone & Telegraph Plural modulation system
US1641431A (en) * 1925-12-15 1927-09-06 Western Electric Co Communication system
CH212076A (de) * 1938-07-19 1940-10-31 Lorenz C Ag Anlage für trägerfrequente Nachrichtenübermittlung auf Dezimeterrelaislinien.
US2298409A (en) * 1940-06-19 1942-10-13 Rca Corp Multiplexing

Also Published As

Publication number Publication date
US2670404A (en) 1954-02-23
DE842507C (de) 1952-06-26
GB686937A (en) 1953-02-04

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