BR0309649A - Método e receptor para recepção de um sinal de radiodifusão de áudio digital de fm - Google Patents
Método e receptor para recepção de um sinal de radiodifusão de áudio digital de fmInfo
- Publication number
- BR0309649A BR0309649A BR0309649-1A BR0309649A BR0309649A BR 0309649 A BR0309649 A BR 0309649A BR 0309649 A BR0309649 A BR 0309649A BR 0309649 A BR0309649 A BR 0309649A
- Authority
- BR
- Brazil
- Prior art keywords
- digital audio
- signal
- receiver
- receiving
- audio broadcasting
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- 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
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/11—Arrangements for counter-measures when a portion of broadcast information is unavailable
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
-
- 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
- H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
-
- 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
- H04H60/04—Studio equipment; Interconnection of studios
-
- 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
- H04H2201/18—Aspects of broadcast communication characterised by the type of broadcast system in band on channel [IBOC]
- H04H2201/183—FM digital or hybrid
-
- 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)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
Abstract
"MéTODO E RECEPTOR PARA RECEPçãO DE UM SINAL DE RADIODIFUSãO DE áUDIO DIGITAL DE FM". Um método para receber um sinal de radiodifusão de áudio digital de FM incluindo uma primeira pluralidade de subportadoras em uma banda lateral inferior do canal de rádio compreende as etapas de misturar o sinal de radiodifusão de áudio digital com um sinal de oscilador local (112) para produzir um sinal de freq³ência intermediária (114) através de um filtro de banda de passagem (116) para produzir um sinal filtrado, determinar se uma das bandas laterais superior e inferior do sinal de radiodifusão de áudio digital está violada, e ajustar o sinal de oscilador de freq³ência local (112) para alterar a freq³ência do sinal de freq³ência intermediária (114) de tal maneira que o filtro de banda de passagem (116) remova as subportadoras na banda lateral superior ou inferior que foi violada. Um receptor que processa um sinal de radiodifusão de áudio digital de acordo com o método é também fornecido.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/136,136 US7221917B2 (en) | 2002-05-01 | 2002-05-01 | Adjacent channel interference mitigation for FM digital audio broadcasting receivers |
PCT/US2003/012218 WO2003094350A1 (en) | 2002-05-01 | 2003-04-21 | Adjacent channel interference mitigation for fm digital audio broadcasting receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0309649A true BR0309649A (pt) | 2005-03-01 |
Family
ID=29268887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0309649-1A BR0309649A (pt) | 2002-05-01 | 2003-04-21 | Método e receptor para recepção de um sinal de radiodifusão de áudio digital de fm |
Country Status (13)
Country | Link |
---|---|
US (1) | US7221917B2 (pt) |
EP (1) | EP1500195A4 (pt) |
JP (1) | JP2005524327A (pt) |
KR (1) | KR20050000417A (pt) |
CN (1) | CN100446430C (pt) |
AR (1) | AR039510A1 (pt) |
AU (1) | AU2003221727B2 (pt) |
BR (1) | BR0309649A (pt) |
CA (1) | CA2483856A1 (pt) |
MX (1) | MXPA04010084A (pt) |
RU (1) | RU2310988C2 (pt) |
TW (1) | TWI305702B (pt) |
WO (1) | WO2003094350A1 (pt) |
Families Citing this family (43)
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US7424278B2 (en) * | 2004-12-23 | 2008-09-09 | Agere Systems Inc. | Low IF mixer with improved selectivity performance |
CN100525145C (zh) * | 2006-08-01 | 2009-08-05 | 北京泰美世纪科技有限公司 | 数字广播系统控制信息传输的装置及其方法 |
EP1909400B1 (en) | 2006-10-06 | 2010-12-08 | STMicroelectronics Srl | Detection and suppression of adjacent channel interference in a received signal through the use of the Teager-Kaiser function |
US8098720B2 (en) * | 2006-10-06 | 2012-01-17 | Stmicroelectronics S.R.L. | Method and apparatus for suppressing adjacent channel interference and multipath propagation signals and radio receiver using said apparatus |
US7693501B2 (en) * | 2006-12-21 | 2010-04-06 | Intel Corporation | Techniques to deterministically reduce signal interference |
KR101315858B1 (ko) * | 2007-01-29 | 2013-10-08 | 엘지이노텍 주식회사 | 위성방송수신기의 주파수 드래프트 보상 장치 |
JP4887242B2 (ja) * | 2007-08-30 | 2012-02-29 | オンセミコンダクター・トレーディング・リミテッド | 中間周波数フィルタ帯域切替制御装置 |
WO2009059320A1 (en) * | 2007-11-01 | 2009-05-07 | National Public Radio | A method for determining audio broadcast transmission signal coverage |
US8259828B2 (en) * | 2008-02-12 | 2012-09-04 | Mediatek Inc. | Sub-carrier alignment mechanism for OFDM multi-carrier systems |
US8351551B2 (en) * | 2008-06-14 | 2013-01-08 | Texas Instruments Incorporated | Opportunistic intermediate frequency selection for communication receivers |
US8068563B2 (en) * | 2008-10-20 | 2011-11-29 | Ibiquity Digital Corporation | Systems and methods for frequency offset correction in a digital radio broadcast receiver |
US7808419B2 (en) * | 2008-10-22 | 2010-10-05 | Mediatek Inc. | Digitizer with variable sampling clock and method using the same |
US7928808B2 (en) * | 2008-11-25 | 2011-04-19 | Raytheon Canada Limited | Selectable local oscillator |
JP5297877B2 (ja) * | 2009-05-07 | 2013-09-25 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 受信装置 |
US9496620B2 (en) | 2013-02-04 | 2016-11-15 | Ubiquiti Networks, Inc. | Radio system for long-range high-speed wireless communication |
US9634373B2 (en) | 2009-06-04 | 2017-04-25 | Ubiquiti Networks, Inc. | Antenna isolation shrouds and reflectors |
US8836601B2 (en) | 2013-02-04 | 2014-09-16 | Ubiquiti Networks, Inc. | Dual receiver/transmitter radio devices with choke |
WO2011062570A1 (en) * | 2009-11-17 | 2011-05-26 | Thomson Licensing | Reuse of a switch ic as a step attenuator |
CN101834628B (zh) * | 2010-02-04 | 2014-04-30 | 华为终端有限公司 | 一种邻频干扰抑制方法及装置 |
US20120307947A1 (en) * | 2010-02-25 | 2012-12-06 | Hiroshi Kodama | Signal processing circuit, wireless communication device, and signal processing method |
US8781029B2 (en) | 2010-06-17 | 2014-07-15 | Nippon Telegraph And Telephone Corporation | Frequency offset estimation apparatus, reception apparatus, frequency offset estimation method, and reception method |
US9184961B2 (en) * | 2011-07-25 | 2015-11-10 | Ibiquity Digital Corporation | FM analog demodulator compatible with IBOC signals |
US20160218406A1 (en) | 2013-02-04 | 2016-07-28 | John R. Sanford | Coaxial rf dual-polarized waveguide filter and method |
US9397820B2 (en) | 2013-02-04 | 2016-07-19 | Ubiquiti Networks, Inc. | Agile duplexing wireless radio devices |
US9543635B2 (en) | 2013-02-04 | 2017-01-10 | Ubiquiti Networks, Inc. | Operation of radio devices for long-range high-speed wireless communication |
US8855730B2 (en) | 2013-02-08 | 2014-10-07 | Ubiquiti Networks, Inc. | Transmission and reception of high-speed wireless communication using a stacked array antenna |
CN105379130B (zh) * | 2013-07-24 | 2017-08-22 | 瑞典爱立信有限公司 | 与无线电信号的接收有关的方法和设备 |
WO2015054567A1 (en) | 2013-10-11 | 2015-04-16 | Ubiquiti Networks, Inc. | Wireless radio system optimization by persistent spectrum analysis |
US10044490B2 (en) | 2013-11-14 | 2018-08-07 | Parallel Wireless, Inc. | Adjacent channel interference cancellation in multi-channel systems |
US9325516B2 (en) | 2014-03-07 | 2016-04-26 | Ubiquiti Networks, Inc. | Power receptacle wireless access point devices for networked living and work spaces |
EP3114884B1 (en) | 2014-03-07 | 2019-10-23 | Ubiquiti Inc. | Cloud device identification and authentication |
US9912053B2 (en) | 2014-03-17 | 2018-03-06 | Ubiquiti Networks, Inc. | Array antennas having a plurality of directional beams |
DK3127187T3 (da) | 2014-04-01 | 2021-02-08 | Ubiquiti Inc | Antenneanordning |
US9178548B1 (en) | 2014-04-21 | 2015-11-03 | Ibiquity Digital Corporation | First adjacent canceller (FAC) with improved blending using a parametric filter |
CN106233797B (zh) | 2014-06-30 | 2019-12-13 | 优倍快网络公司 | 无线电设备对准工具及方法 |
GB201412194D0 (en) * | 2014-07-09 | 2014-08-20 | Qinetiq Ltd | Interference mitigation for a receiver |
US20160183187A1 (en) * | 2014-12-22 | 2016-06-23 | Intel Corporation | Adjacent channel interference mitigation for low-power wake-up radio |
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US10419047B1 (en) * | 2018-12-19 | 2019-09-17 | Silicon Laboratories Inc. | Performing noise cancellation in radio signals using spectral duplication |
US11075708B2 (en) | 2019-12-04 | 2021-07-27 | Psemi Corporation | Method and apparatus for adjacent channel interference mitigation |
CN111049553B (zh) * | 2019-12-11 | 2021-08-27 | 易兆微电子(杭州)股份有限公司 | 一种用于iec14443非接触式卡的低功耗验证方法 |
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-
2002
- 2002-05-01 US US10/136,136 patent/US7221917B2/en not_active Expired - Lifetime
-
2003
- 2003-04-11 TW TW092108380A patent/TWI305702B/zh active
- 2003-04-21 RU RU2004135076/09A patent/RU2310988C2/ru not_active IP Right Cessation
- 2003-04-21 EP EP03718466A patent/EP1500195A4/en not_active Withdrawn
- 2003-04-21 BR BR0309649-1A patent/BR0309649A/pt not_active IP Right Cessation
- 2003-04-21 JP JP2004502467A patent/JP2005524327A/ja active Pending
- 2003-04-21 CN CNB038098989A patent/CN100446430C/zh not_active Expired - Lifetime
- 2003-04-21 CA CA002483856A patent/CA2483856A1/en not_active Abandoned
- 2003-04-21 AU AU2003221727A patent/AU2003221727B2/en not_active Ceased
- 2003-04-21 MX MXPA04010084A patent/MXPA04010084A/es active IP Right Grant
- 2003-04-21 KR KR10-2004-7017550A patent/KR20050000417A/ko not_active Application Discontinuation
- 2003-04-21 WO PCT/US2003/012218 patent/WO2003094350A1/en active Application Filing
- 2003-04-30 AR ARP030101521A patent/AR039510A1/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
TWI305702B (en) | 2009-01-21 |
WO2003094350A1 (en) | 2003-11-13 |
US7221917B2 (en) | 2007-05-22 |
RU2310988C2 (ru) | 2007-11-20 |
CA2483856A1 (en) | 2003-11-13 |
EP1500195A4 (en) | 2010-01-27 |
AU2003221727B2 (en) | 2008-04-17 |
CN100446430C (zh) | 2008-12-24 |
EP1500195A1 (en) | 2005-01-26 |
CN1650519A (zh) | 2005-08-03 |
TW200402941A (en) | 2004-02-16 |
AU2003221727A1 (en) | 2003-11-17 |
US20030207669A1 (en) | 2003-11-06 |
MXPA04010084A (es) | 2005-07-01 |
JP2005524327A (ja) | 2005-08-11 |
RU2004135076A (ru) | 2005-05-10 |
KR20050000417A (ko) | 2005-01-03 |
AR039510A1 (es) | 2005-02-23 |
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Legal Events
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B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 8A ANUIDADE(S). |
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B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: NAO APRESENTADA A GUIA DE CUMPRIMENTO DE EXIGENCIA. REFERENTE AS 8A E 9A ANUIDADES. |
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B15K | Others concerning applications: alteration of classification |
Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H03K 9/00 , H04B 17/02 Ipc: H04H 60/11 (2008.01), H04H 20/30 (2008.01), H04B 1 |