JP4173171B2 - ラジオ受信機及び搬送波検出方法 - Google Patents
ラジオ受信機及び搬送波検出方法 Download PDFInfo
- Publication number
- JP4173171B2 JP4173171B2 JP2006163384A JP2006163384A JP4173171B2 JP 4173171 B2 JP4173171 B2 JP 4173171B2 JP 2006163384 A JP2006163384 A JP 2006163384A JP 2006163384 A JP2006163384 A JP 2006163384A JP 4173171 B2 JP4173171 B2 JP 4173171B2
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- JP
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- Prior art keywords
- broadcast carrier
- frequency
- seek
- carrier wave
- broadcast
- 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.)
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- 238000001514 detection method Methods 0.000 title claims description 52
- 238000000034 method Methods 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 13
- 239000000969 carrier Substances 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 7
- 238000007781 pre-processing Methods 0.000 description 7
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
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
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
-
- 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
- H04H2201/18—Aspects of broadcast communication characterised by the type of broadcast system in band on channel [IBOC]
- H04H2201/186—AM digital or hybrid
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuits Of Receivers In General (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Description
10 アンテナ
20 前処理部
30 IFフィルタ回路
40 デジタル処理部
50 IBOC処理部
60 制御部
70 記憶部
80 操作部
90 音声出力部
Claims (2)
- 第1のデジタル放送搬送波が周波数帯域上でアナログ放送搬送波に隣接した両側に位置するように配置され、前記第1のデジタル放送搬送波と前記アナログ放送搬送波との間に第2のデジタル放送搬送波が位置するように配置されたハイブリッド放送搬送波を受信するラジオ受信機であって、
放送周波数に同調可能な同調部と、
シフト周波数用の帯域フィルタにおける中心周波数を選局方向に応じて割当周波数に対して所定方向にずらし、且つハイブリッド搬送波を検出した場合に、次回のシフト周波数を1ステップ飛ばして設定し、設定したシフト周波数で前記同調部を同調させる制御部と、
を有することを特徴とするラジオ受信機。 - 第1のデジタル放送搬送波が周波数帯域上でアナログ放送搬送波に隣接した両側に位置するように配置され、前記第1のデジタル放送搬送波と前記アナログ放送搬送波との間に第2のデジタル放送搬送波が位置するように配置されたハイブリッド放送搬送波を受信するラジオ受信機におけるハイブリッド放送搬送波検出方法であって、
シフト周波数用の帯域フィルタにおける中心周波数を選局方向に応じて割当周波数に対して所定方向にずらし、且つハイブリッド搬送波を検出した場合に、次回のシフト周波数を1ステップ飛ばして設定し、
設定したシフト周波数で放送搬送波に同調させる、
ステップを有することを特徴とするラジオ受信機におけるハイブリッド放送搬送波検出方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006163384A JP4173171B2 (ja) | 2006-06-13 | 2006-06-13 | ラジオ受信機及び搬送波検出方法 |
US11/808,518 US7822396B2 (en) | 2006-06-13 | 2007-06-11 | Radio receiver and method for detecting carrier waves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006163384A JP4173171B2 (ja) | 2006-06-13 | 2006-06-13 | ラジオ受信機及び搬送波検出方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007336050A JP2007336050A (ja) | 2007-12-27 |
JP4173171B2 true JP4173171B2 (ja) | 2008-10-29 |
Family
ID=38822564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006163384A Expired - Fee Related JP4173171B2 (ja) | 2006-06-13 | 2006-06-13 | ラジオ受信機及び搬送波検出方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7822396B2 (ja) |
JP (1) | JP4173171B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008017292A (ja) * | 2006-07-07 | 2008-01-24 | Denso Corp | ラジオ放送受信装置およびラジオ放送の自動選局装置 |
US7957478B2 (en) * | 2007-09-28 | 2011-06-07 | Ibiquity Digital Corporation | Radio signal generator |
US8068563B2 (en) * | 2008-10-20 | 2011-11-29 | Ibiquity Digital Corporation | Systems and methods for frequency offset correction in a digital radio broadcast receiver |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07147529A (ja) * | 1993-06-28 | 1995-06-06 | Hitachi Ltd | 分割帯域信号強度測定法を用いた自動周波数制御装置及び制御方法 |
JPH0897684A (ja) * | 1994-09-28 | 1996-04-12 | Uniden Corp | 無線受信機の選局方法およびそれを用いた無線受信機 |
US5949796A (en) * | 1996-06-19 | 1999-09-07 | Kumar; Derek D. | In-band on-channel digital broadcasting method and system |
JP3549361B2 (ja) * | 1997-05-13 | 2004-08-04 | 三菱電機株式会社 | ディジタル音声放送受信機 |
US6088569A (en) * | 1998-04-23 | 2000-07-11 | Motorola, Inc. | Method and apparatus for receiving a plurality of signals having different frequency bandwidths |
JP3912459B2 (ja) | 1998-06-16 | 2007-05-09 | ソニー株式会社 | 受信機 |
US7239358B1 (en) * | 1999-07-16 | 2007-07-03 | Thomson Licensing | Television receiver for digital signals with offset tuning provisions |
JP3798604B2 (ja) | 2000-05-08 | 2006-07-19 | 株式会社ケンウッド | 放送方式判別装置及び放送方式判別方法 |
JP2002044557A (ja) * | 2000-07-19 | 2002-02-08 | Sony Corp | テレビジョン受信装置 |
US7221688B2 (en) * | 2002-07-31 | 2007-05-22 | Ibiquity Digital Corporation | Method and apparatus for receiving a digital audio broadcasting signal |
US6898249B2 (en) * | 2002-12-17 | 2005-05-24 | Ibiquity Digital Corporation | Method and apparatus for AM digital audio broadcasting with amplitude scaled tertiary subcarriers |
JP4130367B2 (ja) * | 2003-01-10 | 2008-08-06 | 三菱電機株式会社 | 受信装置 |
US6970685B2 (en) * | 2003-02-14 | 2005-11-29 | Ibiquity Digital Corporation | Method and apparatus for dynamic filter selection in radio receivers |
JP2004349805A (ja) | 2003-05-20 | 2004-12-09 | Alpine Electronics Inc | Iboc放送受信機 |
JP4076912B2 (ja) | 2003-06-10 | 2008-04-16 | アルパイン株式会社 | Iboc放送受信機 |
JP4133604B2 (ja) | 2003-06-10 | 2008-08-13 | アルパイン株式会社 | ラジオ受信機 |
JP4241202B2 (ja) | 2003-06-12 | 2009-03-18 | 大日本印刷株式会社 | めっきポスト型配線基板の製造方法 |
JP4159964B2 (ja) * | 2003-10-07 | 2008-10-01 | アルパイン株式会社 | オーディオ放送受信装置及び自動選局方法 |
JP4264816B2 (ja) | 2003-10-22 | 2009-05-20 | ソニー株式会社 | 受信装置及び受信装置のプリセット方法 |
JP2005191850A (ja) | 2003-12-25 | 2005-07-14 | Sanyo Electric Co Ltd | ラジオ放送受信機 |
JP4381209B2 (ja) * | 2004-04-05 | 2009-12-09 | アルパイン株式会社 | オーディオ装置 |
JP4470059B2 (ja) * | 2004-06-02 | 2010-06-02 | 船井電機株式会社 | テレビジョン受信チュ−ナ |
JP4437943B2 (ja) | 2004-07-13 | 2010-03-24 | 株式会社ケンウッド | Iboc放送受信機 |
-
2006
- 2006-06-13 JP JP2006163384A patent/JP4173171B2/ja not_active Expired - Fee Related
-
2007
- 2007-06-11 US US11/808,518 patent/US7822396B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7822396B2 (en) | 2010-10-26 |
JP2007336050A (ja) | 2007-12-27 |
US20070287398A1 (en) | 2007-12-13 |
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