NO303660B1 - FremgangsmÕte og system ved kvadraturmodulasjon og digital-til-analog omvandling - Google Patents
FremgangsmÕte og system ved kvadraturmodulasjon og digital-til-analog omvandlingInfo
- Publication number
- NO303660B1 NO303660B1 NO964715A NO964715A NO303660B1 NO 303660 B1 NO303660 B1 NO 303660B1 NO 964715 A NO964715 A NO 964715A NO 964715 A NO964715 A NO 964715A NO 303660 B1 NO303660 B1 NO 303660B1
- Authority
- NO
- Norway
- Prior art keywords
- digital
- analog conversion
- quadrature modulation
- quadrature
- modulation
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
- H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
- H03M7/304—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
- H03M7/3042—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator being of the error feedback type, i.e. having loop filter stages in the feedback path only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO964715A NO303660B1 (no) | 1996-11-07 | 1996-11-07 | FremgangsmÕte og system ved kvadraturmodulasjon og digital-til-analog omvandling |
PCT/NO1997/000291 WO1998020657A1 (en) | 1996-11-07 | 1997-11-05 | A method and system for quadrature modulation and digital-to-analog conversion |
EP97913541A EP0944978A1 (en) | 1996-11-07 | 1997-11-05 | A method and system for quadrature modulation and digital-to-analog conversion |
AU50705/98A AU5070598A (en) | 1996-11-07 | 1997-11-05 | A method and system for quadrature modulation and digital-to-analog conversion |
US09/297,276 US6744825B1 (en) | 1996-11-07 | 1997-11-05 | Method and system for quadrature modulation and digital-to-analog conversion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO964715A NO303660B1 (no) | 1996-11-07 | 1996-11-07 | FremgangsmÕte og system ved kvadraturmodulasjon og digital-til-analog omvandling |
Publications (3)
Publication Number | Publication Date |
---|---|
NO964715D0 NO964715D0 (no) | 1996-11-07 |
NO964715L NO964715L (no) | 1998-05-08 |
NO303660B1 true NO303660B1 (no) | 1998-08-10 |
Family
ID=19900015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO964715A NO303660B1 (no) | 1996-11-07 | 1996-11-07 | FremgangsmÕte og system ved kvadraturmodulasjon og digital-til-analog omvandling |
Country Status (5)
Country | Link |
---|---|
US (1) | US6744825B1 (no) |
EP (1) | EP0944978A1 (no) |
AU (1) | AU5070598A (no) |
NO (1) | NO303660B1 (no) |
WO (1) | WO1998020657A1 (no) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0999645B1 (en) * | 1998-11-03 | 2007-08-08 | Freescale Semiconductor, Inc. | Data converter |
JP4359864B2 (ja) | 2000-04-03 | 2009-11-11 | 日本ビクター株式会社 | 直交周波数分割多重装置および直交周波数分割多重方法 |
EP1168632A1 (en) * | 2000-06-28 | 2002-01-02 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Communication device with configurable sigma-delta modulator |
JP3836019B2 (ja) | 2001-11-21 | 2006-10-18 | 松下電器産業株式会社 | 受信装置、送信装置及び送信方法 |
WO2003069772A2 (en) * | 2002-02-15 | 2003-08-21 | Koninklijke Philips Electronics N.V. | Digital modulator |
US7953174B2 (en) * | 2002-03-20 | 2011-05-31 | The Regents Of The University Of California | Radio transmission frequency digital signal generation |
AU2003301612A1 (en) * | 2002-10-25 | 2004-05-13 | The Trustees Of Columbia University In The City Of New York | Time encoding and decoding of a signal |
US7136430B2 (en) | 2003-03-31 | 2006-11-14 | Nortel Networks Limited | Digital receiver and method |
US6987953B2 (en) | 2003-03-31 | 2006-01-17 | Nortel Networks Limited | Digital transmitter and method |
WO2008151137A2 (en) * | 2007-06-01 | 2008-12-11 | The Trustees Of Columbia University In The City Of New York | Real-time time encoding and decoding machines |
WO2009006405A1 (en) | 2007-06-28 | 2009-01-08 | The Trustees Of Columbia University In The City Of New York | Multi-input multi-output time encoding and decoding machines |
US8755447B2 (en) * | 2010-12-22 | 2014-06-17 | Shure Acquisition Holdings, Inc. | Wireless audio equipment using a quadrature modulation system |
WO2012109407A1 (en) | 2011-02-09 | 2012-08-16 | The Trustees Of Columbia University In The City Of New York | Encoding and decoding machine with recurrent neural networks |
CA2887372C (en) * | 2012-10-08 | 2021-01-26 | Mbda Uk Limited | Improvements in and relating to radar receivers |
EP3068044A1 (en) * | 2015-03-11 | 2016-09-14 | Nxp B.V. | Module for a radio receiver |
US10680863B2 (en) * | 2015-03-31 | 2020-06-09 | Sony Corporation | Modulation apparatus |
US9978194B2 (en) | 2015-12-22 | 2018-05-22 | Schlage Lock Company Llc | Low power credential detection device for access control system |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4626803A (en) | 1985-12-30 | 1986-12-02 | General Electric Company | Apparatus for providing a carrier signal with two digital data streams I-Q modulated thereon |
GB8912780D0 (en) * | 1989-06-02 | 1989-07-19 | Gen Electric Co Plc | Analogue to digital converters |
US6230255B1 (en) * | 1990-07-06 | 2001-05-08 | Advanced Micro Devices, Inc. | Communications processor for voice band telecommunications |
JPH07118651B2 (ja) | 1990-11-22 | 1995-12-18 | ヤマハ株式会社 | ディジタル・アナログ変換回路 |
US5410750A (en) * | 1992-02-24 | 1995-04-25 | Raytheon Company | Interference suppressor for a radio receiver |
US5530722A (en) | 1992-10-27 | 1996-06-25 | Ericsson Ge Mobile Communications Inc. | Quadrature modulator with integrated distributed RC filters |
US5588025A (en) * | 1995-03-15 | 1996-12-24 | David Sarnoff Research Center, Inc. | Single oscillator compressed digital information receiver |
US5621345A (en) | 1995-04-07 | 1997-04-15 | Analog Devices, Inc. | In-phase and quadrature sampling circuit |
US5512865A (en) * | 1995-05-08 | 1996-04-30 | National Semiconductor Corporation | Digital oversampled quadrature modulator |
FI98020C (fi) * | 1995-06-06 | 1997-03-25 | Nokia Mobile Phones Ltd | Digitaalisen signaalin modulointimenetelmä ja modulaattori |
US5923712A (en) * | 1997-05-05 | 1999-07-13 | Glenayre Electronics, Inc. | Method and apparatus for linear transmission by direct inverse modeling |
US6317468B1 (en) * | 1998-06-17 | 2001-11-13 | Rockwell Collins | IF exciter for radio transmitter |
-
1996
- 1996-11-07 NO NO964715A patent/NO303660B1/no not_active IP Right Cessation
-
1997
- 1997-11-05 AU AU50705/98A patent/AU5070598A/en not_active Abandoned
- 1997-11-05 WO PCT/NO1997/000291 patent/WO1998020657A1/en not_active Application Discontinuation
- 1997-11-05 EP EP97913541A patent/EP0944978A1/en not_active Withdrawn
- 1997-11-05 US US09/297,276 patent/US6744825B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NO964715D0 (no) | 1996-11-07 |
WO1998020657A1 (en) | 1998-05-14 |
EP0944978A1 (en) | 1999-09-29 |
US6744825B1 (en) | 2004-06-01 |
AU5070598A (en) | 1998-05-29 |
NO964715L (no) | 1998-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO964715D0 (no) | Fremgangsmåte og system ved kvadraturmodulasjon og digital-til-analog omvandling | |
DE69719127D1 (de) | Kommunikationssystem und betriebsverfahren dafür | |
EE9900415A (et) | IQ-modulaator ja sellega seotud meetod | |
AU5265798A (en) | Implementation instrument and method | |
FI99252C (fi) | Yhdistetty radiosignaalin modulointi- ja monikäyttömenetelmä | |
DE69927084D1 (de) | Sigma-delta Modulator und Modulationsverfahren | |
EP0909067A4 (en) | MODULATOR AND MODULATION PROCESS | |
SG74584A1 (en) | Method and apparatus for switching code division multiple access modulated beams | |
AU3761297A (en) | Synchronous modulator and methods for synchronous modulation | |
NO972707D0 (no) | Fremgangsmåte ved modulering av LC132 (opioid-liknende) reseptorfunksjon | |
DE69702402D1 (de) | Frequenzmodulator | |
GB2316272B (en) | Method of local routing and transcoder therefor | |
DK0972205T3 (da) | Impedans-til-spændingskonverter og fremgangsmåde til konvertering | |
FI981107A (fi) | Menetelmä ja laite yhdistetyn amplitodi- ja vaihe-eromoduloinnin aikaansaamiseksi vakioverhokäyrällä | |
NO985179D0 (no) | FremgangsmÕte og system for tale-til-taleomforming | |
DE69727981D1 (de) | Digital-zu-analog konversion | |
IL122175A (en) | Autoclaves and method of operating them | |
IL117369A0 (en) | Converter/modulator and method of its use | |
GB2318322B (en) | Carrier handles and methods of applying carrier handles | |
NO985995D0 (no) | FremgangsmÕte og anordning til bruk ved fase-modulerte signaler | |
NO970260L (no) | Fremgangsmåte og anordning ved fasemodulerte signaler | |
AU2200099A (en) | Pragmatic trellis-coded modulation system and method therefor | |
DE69814935D1 (de) | Datenmodulator und Datenmodulationsverfahren | |
AU5142798A (en) | Method and arrangement for frequency conversion | |
NO20000907D0 (no) | Digital modulator for fase- og/eller amplitudemodulasjon |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |