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
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)
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)
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)
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 |
-
0
- NL NL57174D patent/NL57174C/xx active
-
1938
- 1938-12-02 FR FR854015D patent/FR854015A/en not_active Expired
- 1938-12-29 FR FR50403D patent/FR50403E/en not_active Expired
-
1939
- 1939-02-25 FR FR856319D patent/FR856319A/en not_active Expired
- 1939-11-08 CH CH222396D patent/CH222396A/en unknown
- 1939-12-01 US US307022A patent/US2282714A/en not_active Expired - Lifetime
- 1939-12-03 DE DES139430D patent/DE759851C/en not_active Expired
- 1939-12-04 GB GB31458/39A patent/GB537076A/en not_active Expired
-
1940
- 1940-02-24 US US320532A patent/US2269518A/en not_active Expired - Lifetime
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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