DE69534055D1 - Verfahren zur Erzeugung von modulierenden Wellenformen konstanter Umhüllung - Google Patents
Verfahren zur Erzeugung von modulierenden Wellenformen konstanter UmhüllungInfo
- Publication number
- DE69534055D1 DE69534055D1 DE69534055T DE69534055T DE69534055D1 DE 69534055 D1 DE69534055 D1 DE 69534055D1 DE 69534055 T DE69534055 T DE 69534055T DE 69534055 T DE69534055 T DE 69534055T DE 69534055 D1 DE69534055 D1 DE 69534055D1
- Authority
- DE
- Germany
- Prior art keywords
- constant envelope
- modulating waveforms
- generating modulating
- generating
- waveforms
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- 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
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6301946A JPH08163189A (ja) | 1994-12-06 | 1994-12-06 | 送信回路 |
JP30194694 | 1994-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69534055D1 true DE69534055D1 (de) | 2005-04-14 |
DE69534055T2 DE69534055T2 (de) | 2006-02-23 |
Family
ID=17903020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69534055T Expired - Lifetime DE69534055T2 (de) | 1994-12-06 | 1995-12-05 | Verfahren zur Erzeugung von modulierenden Wellenformen konstanter Umhüllung |
Country Status (7)
Country | Link |
---|---|
US (1) | US5784412A (de) |
EP (1) | EP0716526B1 (de) |
JP (1) | JPH08163189A (de) |
KR (1) | KR100286722B1 (de) |
AU (1) | AU705593B2 (de) |
CA (1) | CA2164465A1 (de) |
DE (1) | DE69534055T2 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6032028A (en) * | 1996-04-12 | 2000-02-29 | Continentral Electronics Corporation | Radio transmitter apparatus and method |
US6185259B1 (en) * | 1996-06-12 | 2001-02-06 | Ericsson Inc. | Transmitter/receiver for GMSK and offset-QAM |
KR100221832B1 (ko) * | 1996-11-19 | 1999-09-15 | 유기범 | 정진폭특성을 갖는 쌍직교진폭변조방법 및 그 장치 |
US6320914B1 (en) * | 1996-12-18 | 2001-11-20 | Ericsson Inc. | Spectrally efficient modulation using overlapped GMSK |
US6415002B1 (en) * | 1998-04-07 | 2002-07-02 | Nortel Networks Limited | Phase and amplitude modulation of baseband signals |
DE10101911B4 (de) | 2001-01-16 | 2004-03-18 | Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co. KG. | Signalverarbeitung eines amplituden- und/oder phasenmodulierten Hochfrequenzsignals |
GB0205199D0 (en) * | 2002-03-06 | 2002-04-17 | Univ Belfast | Modulator/transmitter apparatus and method |
US6892057B2 (en) * | 2002-08-08 | 2005-05-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for reducing dynamic range of a power amplifier |
JP2005151543A (ja) * | 2003-10-20 | 2005-06-09 | Matsushita Electric Ind Co Ltd | 増幅回路 |
JP4388402B2 (ja) * | 2004-03-31 | 2009-12-24 | 株式会社ルネサステクノロジ | 送信機及びそれを用いた移動体通信端末 |
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 |
US7653146B2 (en) * | 2005-09-06 | 2010-01-26 | Liquid Xstream Systems Inc. | System and method for delivery of video, content on demand and IP packets |
US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
US9106316B2 (en) | 2005-10-24 | 2015-08-11 | 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 |
WO2007133323A2 (en) * | 2006-04-24 | 2007-11-22 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
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 |
WO2008090598A1 (ja) * | 2007-01-22 | 2008-07-31 | Panasonic Corporation | 増幅装置 |
WO2008144017A1 (en) | 2007-05-18 | 2008-11-27 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
WO2009005768A1 (en) | 2007-06-28 | 2009-01-08 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
US8773564B2 (en) | 2010-12-14 | 2014-07-08 | Truesense Imaging, Inc. | Image sensor with charge multiplication |
US8493492B2 (en) | 2010-12-14 | 2013-07-23 | Truesense Imaging, Inc. | Method of producing an image with pixel signals produced by an image sensor that includes multiple output channels |
US8493491B2 (en) | 2010-12-14 | 2013-07-23 | Truesense Imaging, Inc. | Methods for processing an image captured by an image sensor having multiple output channels |
US8553126B2 (en) | 2010-12-14 | 2013-10-08 | Truesense Imaging, Inc. | Image sensor with charge multiplication |
US8479374B2 (en) | 2010-12-14 | 2013-07-09 | Truesense Imaging, Inc. | Method of producing an image sensor having multiple output channels |
KR20140026458A (ko) | 2011-04-08 | 2014-03-05 | 파커비전, 인크. | Rf 전력 송신, 변조 및 증폭 시스템들 및 방법들 |
EP2715867A4 (de) | 2011-06-02 | 2014-12-17 | Parkervision Inc | Antennensteuerung |
US20150080063A1 (en) | 2013-09-17 | 2015-03-19 | Parkervision, Inc. | Method, apparatus and system for rendering an information bearing function of time |
US11239990B2 (en) * | 2019-06-12 | 2022-02-01 | Infineon Technologies Ag | Phase error determination using two modulators |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3896395A (en) * | 1974-07-18 | 1975-07-22 | Bell Telephone Labor Inc | Linear amplification using quantized envelope components to phase reverse modulate quadrature reference signals |
US3927379A (en) * | 1975-01-08 | 1975-12-16 | Bell Telephone Labor Inc | Linear amplification using nonlinear devices and inverse sine phase modulation |
US4485358A (en) * | 1981-09-28 | 1984-11-27 | E-Systems, Inc. | Method and apparatus for pulse angle modulation |
JPH0831886B2 (ja) * | 1989-09-14 | 1996-03-27 | 松下電器産業株式会社 | 送信装置 |
US5990734A (en) * | 1998-06-19 | 1999-11-23 | Datum Telegraphic Inc. | System and methods for stimulating and training a power amplifier during non-transmission events |
-
1994
- 1994-12-06 JP JP6301946A patent/JPH08163189A/ja active Pending
-
1995
- 1995-12-05 DE DE69534055T patent/DE69534055T2/de not_active Expired - Lifetime
- 1995-12-05 CA CA002164465A patent/CA2164465A1/en not_active Abandoned
- 1995-12-05 EP EP95119142A patent/EP0716526B1/de not_active Expired - Lifetime
- 1995-12-05 AU AU40246/95A patent/AU705593B2/en not_active Expired
- 1995-12-06 US US08/568,142 patent/US5784412A/en not_active Expired - Lifetime
- 1995-12-06 KR KR1019950047018A patent/KR100286722B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR960027861A (ko) | 1996-07-22 |
AU705593B2 (en) | 1999-05-27 |
EP0716526A3 (de) | 2000-12-20 |
KR100286722B1 (ko) | 2001-04-16 |
EP0716526A2 (de) | 1996-06-12 |
CA2164465A1 (en) | 1996-06-07 |
AU4024695A (en) | 1996-06-13 |
US5784412A (en) | 1998-07-21 |
JPH08163189A (ja) | 1996-06-21 |
DE69534055T2 (de) | 2006-02-23 |
EP0716526B1 (de) | 2005-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |