JPH08508142A - 受信した多重信号の音質に依存した音質信号の導出用回路装置 - Google Patents
受信した多重信号の音質に依存した音質信号の導出用回路装置Info
- Publication number
- JPH08508142A JPH08508142A JP6520526A JP52052694A JPH08508142A JP H08508142 A JPH08508142 A JP H08508142A JP 6520526 A JP6520526 A JP 6520526A JP 52052694 A JP52052694 A JP 52052694A JP H08508142 A JPH08508142 A JP H08508142A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- multiplied
- circuit device
- sound quality
- mixed
- 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.)
- Granted
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/12—Arrangements for observation, testing or troubleshooting
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Noise Elimination (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. ステレオ放送受信機で受信された多重信号の音質に依存する音質信号の導 出用の回路装置であって、その際、前記多重信号は、ベースバンド内の和信号( L+R)、差信号(L-R)で変調された副搬送波及び当該副搬送波の1/2周波数のパ イロット信号を有している、回路装置において、 デジタル形式での多重信号は、放送受信機内で形成されたサンプリングクロッ クから得られた主搬送波と、相互に90°シフトされた2つの位相位置で乗算され 、 補正された混合信号が形成されるように、乗算によって形成された各混合信号 が夫々1つの補正信号と乗算され、 前記補正された混合信号が加算されて、当該和信号と共に、ステレオ音声信号 (L,R)の形成のためにマトリックス回路に供給され、 前記各混合信号は、更に、夫々他の補正信号と乗算され、 この乗算の各積が相互に減算されて、低域通過フィルタリングされるようにし たことを特徴とする回路装置。 2. 補正信号の形成のために、多重信号は、主搬送波と位相結合された基準パ イロット信号と、相互に 90°シフトされた2つの位相位置で乗算され、形成された別の混合信号は、低域 通過フィルタリングされ、当該低域通過フィルタリングされた別の混合信号は、 第1の補正信号の形成のために2乗されて、相互に減算され、第2の補正信号の 形成のために相互に乗算されて2と乗算される請求項1記載の回路装置。 3. 低域通過フィルタリングされた別の混合信号は、パイロット信号の振幅を 示す信号の形成のために2乗されて、加算される請求項2記載の回路装置。 4. 補正信号は、パイロット信号の振幅を示す信号を用いて、当該補正信号の 振幅の正規化ために制御される請求項3記載の回路装置。 5. 低域通過フィルタリングの後、絶対値形成が行なわれる先行の各請求項の 1項に記載の回路装置。 6. 絶対値形成は、2乗化によって行なわれる請求項5記載の回路装置。 7. 形成された絶対値は、限界値と比較されて、比較結果は、音質信号として 送出される請求項5又は6記載の回路装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4309518A DE4309518A1 (de) | 1993-03-24 | 1993-03-24 | Schaltungsanordnung zur Ableitung mindestens eines von der Qualität eines empfangenen Signals abhängigen Qualitätssignals |
DE4309518.6 | 1993-03-24 | ||
PCT/DE1994/000320 WO1994022228A1 (de) | 1993-03-24 | 1994-03-22 | Schaltungsanordnung zur ableitung eines von der qualität eines empfangenen multiplexsignals abhängigen qualitätssignals |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08508142A true JPH08508142A (ja) | 1996-08-27 |
JP3640669B2 JP3640669B2 (ja) | 2005-04-20 |
Family
ID=38729064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52052694A Expired - Fee Related JP3640669B2 (ja) | 1993-03-24 | 1994-03-22 | 受信した多重信号の音質に依存した音質信号の導出用回路装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5696830A (ja) |
EP (1) | EP0691049B1 (ja) |
JP (1) | JP3640669B2 (ja) |
DE (1) | DE59403123D1 (ja) |
WO (1) | WO1994022228A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006077761A1 (ja) * | 2005-01-24 | 2006-07-27 | Pioneer Corporation | サブキャリア信号生成装置および多重化信号復調装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19630395C1 (de) * | 1996-07-26 | 1997-10-02 | Sgs Thomson Microelectronics | Elektrische Stummsteuerschaltung |
US20030087618A1 (en) * | 2001-11-08 | 2003-05-08 | Junsong Li | Digital FM stereo decoder and method of operation |
JP4916974B2 (ja) * | 2007-08-03 | 2012-04-18 | オンセミコンダクター・トレーディング・リミテッド | Fmチューナ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4630299A (en) * | 1985-02-22 | 1986-12-16 | General Electric Company | Digital circuit for decoding digitized, demodulated FM stereo signals |
DE4027399C2 (de) * | 1990-08-30 | 1995-11-30 | Blaupunkt Werke Gmbh | UKW-Autoradio |
DE4241362C2 (de) * | 1992-12-09 | 1997-06-05 | Blaupunkt Werke Gmbh | Rundfunkempfänger |
DE4303387A1 (de) * | 1993-02-05 | 1994-08-11 | Blaupunkt Werke Gmbh | Schaltungsanordnung zur Decodierung eines Multiplexsignals in einem Stereo-Rundfunkempfänger |
-
1994
- 1994-03-22 WO PCT/DE1994/000320 patent/WO1994022228A1/de active IP Right Grant
- 1994-03-22 US US08/522,312 patent/US5696830A/en not_active Expired - Lifetime
- 1994-03-22 DE DE59403123T patent/DE59403123D1/de not_active Expired - Lifetime
- 1994-03-22 JP JP52052694A patent/JP3640669B2/ja not_active Expired - Fee Related
- 1994-03-22 EP EP94911061A patent/EP0691049B1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006077761A1 (ja) * | 2005-01-24 | 2006-07-27 | Pioneer Corporation | サブキャリア信号生成装置および多重化信号復調装置 |
Also Published As
Publication number | Publication date |
---|---|
JP3640669B2 (ja) | 2005-04-20 |
EP0691049B1 (de) | 1997-06-11 |
EP0691049A1 (de) | 1996-01-10 |
US5696830A (en) | 1997-12-09 |
DE59403123D1 (de) | 1997-07-17 |
WO1994022228A1 (de) | 1994-09-29 |
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