SE0004031D0 - A direct digital amplitude modulator - Google Patents
A direct digital amplitude modulatorInfo
- Publication number
- SE0004031D0 SE0004031D0 SE0004031A SE0004031A SE0004031D0 SE 0004031 D0 SE0004031 D0 SE 0004031D0 SE 0004031 A SE0004031 A SE 0004031A SE 0004031 A SE0004031 A SE 0004031A SE 0004031 D0 SE0004031 D0 SE 0004031D0
- Authority
- SE
- Sweden
- Prior art keywords
- direct digital
- amplitude modulator
- digital amplitude
- interpolation technique
- ddam
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
- H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
- H03C1/547—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using field-effect transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004031A SE0004031L (sv) | 2000-11-03 | 2000-11-03 | Direkt digital amplitudmodulator |
CNA018183905A CN1473392A (zh) | 2000-11-03 | 2001-11-01 | 直接数字幅度调制器 |
DE60137641T DE60137641D1 (de) | 2000-11-03 | 2001-11-01 | Direkt-digital-amplitudenmodulator |
AU2002212907A AU2002212907A1 (en) | 2000-11-03 | 2001-11-01 | A direct digital amplitude modulator |
EP01981251A EP1338085B1 (en) | 2000-11-03 | 2001-11-01 | A direct digital amplitude modulator |
PCT/SE2001/002411 WO2002037667A1 (en) | 2000-11-03 | 2001-11-01 | A direct digital amplitude modulator |
AT01981251T ATE422727T1 (de) | 2000-11-03 | 2001-11-01 | Direkt-digital-amplitudenmodulator |
US10/426,557 US7164328B2 (en) | 2000-11-03 | 2003-04-30 | Direct digital amplitude modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004031A SE0004031L (sv) | 2000-11-03 | 2000-11-03 | Direkt digital amplitudmodulator |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0004031D0 true SE0004031D0 (sv) | 2000-11-03 |
SE516705C2 SE516705C2 (sv) | 2002-02-12 |
SE0004031L SE0004031L (sv) | 2002-02-12 |
Family
ID=20281694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0004031A SE0004031L (sv) | 2000-11-03 | 2000-11-03 | Direkt digital amplitudmodulator |
Country Status (8)
Country | Link |
---|---|
US (1) | US7164328B2 (sv) |
EP (1) | EP1338085B1 (sv) |
CN (1) | CN1473392A (sv) |
AT (1) | ATE422727T1 (sv) |
AU (1) | AU2002212907A1 (sv) |
DE (1) | DE60137641D1 (sv) |
SE (1) | SE0004031L (sv) |
WO (1) | WO2002037667A1 (sv) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0004031L (sv) * | 2000-11-03 | 2002-02-12 | Ericsson Telefon Ab L M | Direkt digital amplitudmodulator |
US7447272B2 (en) * | 2003-04-22 | 2008-11-04 | Freescale Semiconductor, Inc. | Filter method and apparatus for polar modulation |
US7421037B2 (en) | 2003-11-20 | 2008-09-02 | Nokia Corporation | Reconfigurable transmitter with direct digital to RF modulator |
US6980779B2 (en) * | 2003-11-20 | 2005-12-27 | Nokia Corporation | RF transmitter using digital-to-RF conversion |
US6937848B2 (en) | 2003-11-20 | 2005-08-30 | Nokia Corporation | Method and device for digital-to-RF conversion |
US7424064B2 (en) | 2003-11-20 | 2008-09-09 | Nokia Corporation | Polar transmitter with digital to RF converter |
US7333780B2 (en) * | 2004-03-03 | 2008-02-19 | Matsushita Electric Industrial Co., Ltd. | Polar modulation transmission apparatus and radio communication apparatus |
US7983632B2 (en) * | 2004-09-24 | 2011-07-19 | Broadcom Corporation | Feedback control loop for amplitude modulation in a polar transmitter with a translational loop |
US7345612B2 (en) * | 2006-02-07 | 2008-03-18 | Nokia Corporation | Digital-to-radio frequency conversion device, chip set, transmitter, user terminal and data processing method |
US7801498B2 (en) | 2006-09-18 | 2010-09-21 | Stmicroelectronics Sa | Transmission of analog signals in a system-on-chip |
CN101246507B (zh) * | 2007-12-29 | 2010-09-29 | 湖南大学 | 一种∑δ调制器开关电流集成电路的参数设计优化方法 |
EP2146427A1 (en) | 2008-07-07 | 2010-01-20 | Nxp B.V. | Digital modulator |
US7714759B1 (en) * | 2008-10-20 | 2010-05-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Low power linear interpolation digital-to-analog conversion |
US8861627B2 (en) * | 2009-07-15 | 2014-10-14 | Fujitsu Limited | Direct mm-wave m-ary quadrature amplitude modulation (QAM) modulator operating in saturated power mode |
US8831159B2 (en) * | 2011-02-09 | 2014-09-09 | Intel Mobile Communications GmbH | AM-PM synchronization unit |
WO2013152046A1 (en) * | 2012-04-02 | 2013-10-10 | Marvell World Trade Ltd. | Very compact/linear software defined transmitter with digital modulator |
US10382246B2 (en) * | 2014-01-07 | 2019-08-13 | Quantumsine Acquisitions Inc. | Combined amplitude-time and phase modulation |
US11140018B2 (en) * | 2014-01-07 | 2021-10-05 | Quantumsine Acquisitions Inc. | Method and apparatus for intra-symbol multi-dimensional modulation |
CN104052710B (zh) | 2014-06-24 | 2017-07-14 | 华为技术有限公司 | 数字发射机的调制电路、数字发射机和信号调制方法 |
CN104122444B (zh) * | 2014-08-06 | 2016-10-19 | 石家庄数英仪器有限公司 | 全数字中频频谱分析仪及频谱分析方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2118384A (en) * | 1982-03-26 | 1983-10-26 | Plessey Co Plc | Digital amplitude modulator |
JP2001514467A (ja) * | 1997-08-25 | 2001-09-11 | ノキア ネットワークス オサケ ユキチュア | 角度及び/又は振幅変調のためのデジタル変調器 |
BR9909353A (pt) * | 1998-04-02 | 2000-12-12 | Ericsson Inc | Amplificador de potência, processo e aparelho para amplificar um sinal de entrada de ca de amplitude variante e fase variante usando uma fonte de alimentação de cc, processos para amplificar um sinal de entrada de amplitude variante e fase variante a um nìvel de potência desejado, para gerar de um sinal de amplitude variante e fase variante, uma pluralidade de sinais de amplitude constante e fase variante, e para sintetizar de uma forma de onda de entrada, uma forma de onda de saìda em uma carga usando uma fonte de alimentação de cc, transmissor para produzir um sinal de saìda de amplitude variante em um nìvel de potência desejado e em uma frequência portadora desejada, de um sinal de entrada de amplitude variante e fase variante, sistema para gerar de um sinal de amplitude variante e fase variante, uma pluralidade de sinais de amplitude constante e fase variante, e, aparelho para sintetizar de uma forma de onda de entrada, uma forma de onda de saìda em uma carga usando uma fonte de alimentação de cc |
SE0004031L (sv) * | 2000-11-03 | 2002-02-12 | Ericsson Telefon Ab L M | Direkt digital amplitudmodulator |
-
2000
- 2000-11-03 SE SE0004031A patent/SE0004031L/sv not_active IP Right Cessation
-
2001
- 2001-11-01 DE DE60137641T patent/DE60137641D1/de not_active Expired - Lifetime
- 2001-11-01 CN CNA018183905A patent/CN1473392A/zh active Pending
- 2001-11-01 AU AU2002212907A patent/AU2002212907A1/en not_active Abandoned
- 2001-11-01 EP EP01981251A patent/EP1338085B1/en not_active Expired - Lifetime
- 2001-11-01 WO PCT/SE2001/002411 patent/WO2002037667A1/en not_active Application Discontinuation
- 2001-11-01 AT AT01981251T patent/ATE422727T1/de not_active IP Right Cessation
-
2003
- 2003-04-30 US US10/426,557 patent/US7164328B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7164328B2 (en) | 2007-01-16 |
DE60137641D1 (de) | 2009-03-26 |
CN1473392A (zh) | 2004-02-04 |
US20050074073A1 (en) | 2005-04-07 |
EP1338085A1 (en) | 2003-08-27 |
ATE422727T1 (de) | 2009-02-15 |
SE516705C2 (sv) | 2002-02-12 |
EP1338085B1 (en) | 2009-02-11 |
WO2002037667A1 (en) | 2002-05-10 |
SE0004031L (sv) | 2002-02-12 |
AU2002212907A1 (en) | 2002-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |