NL57174C - - Google Patents
Info
- Publication number
- NL57174C NL57174C NL57174DA NL57174C NL 57174 C NL57174 C NL 57174C NL 57174D A NL57174D A NL 57174DA NL 57174 C NL57174 C NL 57174C
- Authority
- NL
- Netherlands
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR759851X | 1938-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL57174C true NL57174C (no) |
Family
ID=9167474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL57174D NL57174C (no) | 1938-12-02 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2282714A (no) |
| CH (1) | CH222396A (no) |
| DE (1) | DE759851C (no) |
| FR (3) | FR854015A (no) |
| GB (1) | GB537076A (no) |
| NL (1) | NL57174C (no) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL79855C (no) * | 1949-11-02 | |||
| US2719190A (en) * | 1950-10-27 | 1955-09-27 | Bell Telephone Labor Inc | High-efficiency translating circuit |
| NL170979B (nl) * | 1951-07-12 | Keystone Int | Vlinderklepafsluiter. | |
| GB989329A (en) * | 1964-01-16 | 1965-04-14 | Standard Telephones Cables Ltd | Electrical amplifying circuits |
| DE3906448C1 (no) * | 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 (ja) | 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 | アンテナ制御 |
| KR20160058855A (ko) | 2013-09-17 | 2016-05-25 | 파커비전, 인크. | 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템 |
| US10187014B2 (en) | 2014-10-07 | 2019-01-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Driver circuit for composite power amplifier |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL25389C (no) * | 1926-05-10 | |||
| FR39312E (fr) * | 1930-05-06 | 1931-10-12 | Radio Electr Soc Fr | Perfectionnements aux méthodes de radio-communication |
| DE598086C (de) * | 1931-07-29 | 1934-06-05 | Radio Electr Soc Fr | Verfahren zur drahtlosen Nachrichtenuebermittlung mittels zweier aus einem Generator gespeister und in Differentialkopplung auf den Antennenkreis arbeitender Stromkreise |
| DE611876C (de) * | 1934-02-04 | 1935-04-09 | Radio Electr Soc Fr | Hochfrequenzsendeanordung fuer modulierte Signale |
-
0
- NL NL57174D patent/NL57174C/xx active
-
1938
- 1938-12-02 FR FR854015D patent/FR854015A/fr not_active Expired
- 1938-12-29 FR FR50403D patent/FR50403E/fr not_active Expired
-
1939
- 1939-02-25 FR FR856319D patent/FR856319A/fr not_active Expired
- 1939-11-08 CH CH222396D patent/CH222396A/fr unknown
- 1939-12-01 US US307022A patent/US2282714A/en not_active Expired - Lifetime
- 1939-12-03 DE DES139430D patent/DE759851C/de 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 |
|---|---|
| FR50403E (fr) | 1940-06-05 |
| US2282714A (en) | 1942-05-12 |
| DE759851C (de) | 1952-11-10 |
| CH222396A (fr) | 1942-07-15 |
| GB537076A (en) | 1941-06-09 |
| FR854015A (fr) | 1940-04-03 |
| FR856319A (fr) | 1940-06-11 |
| US2269518A (en) | 1942-01-13 |