AR037747A1 - Radio difusion de audio digital en amplitud modulada con pre-compensacion de senales analogicas - Google Patents
Radio difusion de audio digital en amplitud modulada con pre-compensacion de senales analogicasInfo
- Publication number
- AR037747A1 AR037747A1 ARP020104692A ARP020104692A AR037747A1 AR 037747 A1 AR037747 A1 AR 037747A1 AR P020104692 A ARP020104692 A AR P020104692A AR P020104692 A ARP020104692 A AR P020104692A AR 037747 A1 AR037747 A1 AR 037747A1
- Authority
- AR
- Argentina
- Prior art keywords
- signal
- digital audio
- compensation
- produce
- analog signals
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/36—Arrangements for simultaneous broadcast of plural pieces of information for AM broadcasts
-
- 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
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Noise Elimination (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stereo-Broadcasting Methods (AREA)
- Television Systems (AREA)
- Amplitude Modulation (AREA)
Abstract
Un método para pre-compensar una senal analógica en una senal de difusión audio digital compuesta que incluye la senal analógica y una pluralidad de senales de sub-portadora moduladas digitalmente, el método que comprende los pasos de muestrear la senal analógica para obtener bloques sucesivos de muestras, demodulando cada uno de los bloques de muestras para obtener una pluralidad de salidas de demodulador, remodulando las salidas de demodulador que corresponden a aquellas predeterminadas de las senales de sub-portadora moduladas digitalmente a fin de producir una senal de error, sustrayendo la senal de error de aquéllos de los bloques de muestras a fin de producir un bloque pre-compensado de muestras, y que combina el bloque pre-compensado de muestras con una pluralidad de pulsos de OFDM a fin de producir una senal compuesta compensada. También se incluye un aparato para ejecutar el método.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/012,828 US6798849B2 (en) | 2001-12-10 | 2001-12-10 | AM digital audio broadcasting with analog signal pre-compensation |
Publications (1)
Publication Number | Publication Date |
---|---|
AR037747A1 true AR037747A1 (es) | 2004-12-01 |
Family
ID=21756899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP020104692A AR037747A1 (es) | 2001-12-10 | 2002-12-04 | Radio difusion de audio digital en amplitud modulada con pre-compensacion de senales analogicas |
Country Status (13)
Country | Link |
---|---|
US (1) | US6798849B2 (es) |
EP (1) | EP1451923A1 (es) |
JP (1) | JP2005512441A (es) |
KR (1) | KR20040065240A (es) |
CN (1) | CN1602584A (es) |
AR (1) | AR037747A1 (es) |
AU (1) | AU2002366525A1 (es) |
BR (1) | BR0214654A (es) |
CA (1) | CA2467578A1 (es) |
MX (1) | MXPA04004976A (es) |
RU (1) | RU2004121184A (es) |
TW (1) | TWI246270B (es) |
WO (1) | WO2003050943A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4302410B2 (ja) * | 2003-02-28 | 2009-07-29 | 独立行政法人情報通信研究機構 | 受信装置、受信方法、ならびに、プログラム |
US7680201B2 (en) * | 2004-01-26 | 2010-03-16 | Ibiquity Digital Corporation | Forward error correction coding for AM 9kHz and 10kHz in-band on-channel digital audio broadcasting systems |
US7340010B2 (en) * | 2004-01-26 | 2008-03-04 | Ibiquity Digital Corporation | Forward error correction coding for hybrid AM in-band on-channel digital audio broadcasting systems |
US7474707B2 (en) | 2004-09-09 | 2009-01-06 | Ibiquity Digital Corporation | Bandwidth reduction of an FM broadcast signal using a baseband precompensation technique |
CN111355501B (zh) * | 2020-03-11 | 2021-12-10 | 成都振芯科技股份有限公司 | 一种tdd系统宽带发射器正交误差校正系统及方法 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2637431B1 (fr) | 1988-09-30 | 1990-11-09 | Labo Electronique Physique | Circuit de predistorsion adaptative |
FR2642243B1 (fr) | 1989-01-24 | 1991-04-19 | Labo Electronique Physique | Circuit de predistorsion adaptative |
FR2644638B1 (es) | 1989-03-14 | 1991-05-31 | Labo Electronique Physique | |
US5233632A (en) * | 1991-05-10 | 1993-08-03 | Motorola, Inc. | Communication system receiver apparatus and method for fast carrier acquisition |
JPH07123257B2 (ja) | 1992-12-25 | 1995-12-25 | 日本電気株式会社 | ディジタルデータ復調装置 |
US5428404A (en) * | 1993-01-29 | 1995-06-27 | Scientific-Atlanta, Inc. | Apparatus for method for selectively demodulating and remodulating alternate channels of a television broadcast |
FR2707127A1 (fr) | 1993-06-29 | 1995-01-06 | Philips Laboratoire Electroniq | Système de transmission numérique à prédisposition. |
US5588022A (en) | 1994-03-07 | 1996-12-24 | Xetron Corp. | Method and apparatus for AM compatible digital broadcasting |
US5625640A (en) * | 1994-09-16 | 1997-04-29 | Hughes Electronics | Apparatus for and method of broadcast satellite network return-link signal transmission |
WO1996021291A1 (en) | 1995-01-03 | 1996-07-11 | Northrop Grumman Corporation | Method and apparatus for improving am compatible digital broadcast analog fidelity |
US5903823A (en) | 1995-09-19 | 1999-05-11 | Fujitsu Limited | Radio apparatus with distortion compensating function |
US5937011A (en) | 1996-03-26 | 1999-08-10 | Airnet Communications Corp. | Multi-carrier high power amplifier using digital pre-distortion |
US6144705A (en) | 1996-08-22 | 2000-11-07 | Lucent Technologies Inc. | Technique for simultaneous communications of analog frequency-modulated and digitally modulated signals using precanceling scheme |
US6275543B1 (en) | 1996-10-11 | 2001-08-14 | Arraycomm, Inc. | Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
US6075813A (en) | 1997-03-18 | 2000-06-13 | Lucent Technologies Inc. | Band insertion and precancellation technique for simultaneous communication of analog frequency modulated and digitally modulated signals |
US6005894A (en) | 1997-04-04 | 1999-12-21 | Kumar; Derek D. | AM-compatible digital broadcasting method and system |
US5900778A (en) | 1997-05-08 | 1999-05-04 | Stonick; John T. | Adaptive parametric signal predistorter for compensation of time varying linear and nonlinear amplifier distortion |
US6072364A (en) | 1997-06-17 | 2000-06-06 | Amplix | Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains |
US6052157A (en) * | 1997-08-04 | 2000-04-18 | Innovision Labs | System and method for separating chrominance and luminance components of a color television system |
US6567981B1 (en) * | 1998-08-03 | 2003-05-20 | Elysium Broadband Inc. | Audio/video signal redistribution system |
US6175389B1 (en) * | 1999-02-04 | 2001-01-16 | Conexant Systems, Inc. | Comb filtered signal separation |
US6104239A (en) | 1999-03-12 | 2000-08-15 | Thomcast Communications, Inc. | Method for correcting frequency-varying nonlinear errors and digital correction circuit implementing same |
US6459457B1 (en) * | 1999-12-21 | 2002-10-01 | Texas Instruments Incorporated | Adaptive color comb filter |
US7106709B2 (en) * | 2000-11-29 | 2006-09-12 | Telefonaktiebologet Lm Ericsson (Publ) | Timing drift compensation in wireless packet-based systems |
US20020147978A1 (en) * | 2001-04-04 | 2002-10-10 | Alex Dolgonos | Hybrid cable/wireless communications system |
US7020218B2 (en) * | 2001-06-18 | 2006-03-28 | Arnesen David M | Sliding-window transform with integrated windowing |
US20030125040A1 (en) * | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
-
2001
- 2001-12-10 US US10/012,828 patent/US6798849B2/en not_active Expired - Lifetime
-
2002
- 2002-11-26 TW TW091134299A patent/TWI246270B/zh active
- 2002-12-04 AR ARP020104692A patent/AR037747A1/es unknown
- 2002-12-05 KR KR10-2004-7008876A patent/KR20040065240A/ko not_active Application Discontinuation
- 2002-12-05 BR BR0214654-1A patent/BR0214654A/pt not_active Application Discontinuation
- 2002-12-05 RU RU2004121184/09A patent/RU2004121184A/ru not_active Application Discontinuation
- 2002-12-05 EP EP02791359A patent/EP1451923A1/en not_active Withdrawn
- 2002-12-05 JP JP2003551892A patent/JP2005512441A/ja active Pending
- 2002-12-05 MX MXPA04004976A patent/MXPA04004976A/es unknown
- 2002-12-05 AU AU2002366525A patent/AU2002366525A1/en not_active Abandoned
- 2002-12-05 CA CA002467578A patent/CA2467578A1/en not_active Abandoned
- 2002-12-05 CN CNA02824639XA patent/CN1602584A/zh active Pending
- 2002-12-05 WO PCT/US2002/038580 patent/WO2003050943A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
TW200304289A (en) | 2003-09-16 |
EP1451923A1 (en) | 2004-09-01 |
US20030108123A1 (en) | 2003-06-12 |
CN1602584A (zh) | 2005-03-30 |
KR20040065240A (ko) | 2004-07-21 |
RU2004121184A (ru) | 2006-01-10 |
AU2002366525A1 (en) | 2003-06-23 |
MXPA04004976A (es) | 2004-08-11 |
TWI246270B (en) | 2005-12-21 |
US6798849B2 (en) | 2004-09-28 |
WO2003050943A1 (en) | 2003-06-19 |
BR0214654A (pt) | 2004-09-14 |
CA2467578A1 (en) | 2003-06-19 |
JP2005512441A (ja) | 2005-04-28 |
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Legal Events
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FB | Suspension of granting procedure |