DE69919728D1 - Niederfrequenz-audioverbesserungssystem - Google Patents
Niederfrequenz-audioverbesserungssystemInfo
- Publication number
- DE69919728D1 DE69919728D1 DE69919728T DE69919728T DE69919728D1 DE 69919728 D1 DE69919728 D1 DE 69919728D1 DE 69919728 T DE69919728 T DE 69919728T DE 69919728 T DE69919728 T DE 69919728T DE 69919728 D1 DE69919728 D1 DE 69919728D1
- Authority
- DE
- Germany
- Prior art keywords
- loudspeaker
- audio
- bandwidth
- signal
- low frequency
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Stereophonic System (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/148,222 US6285767B1 (en) | 1998-09-04 | 1998-09-04 | Low-frequency audio enhancement system |
| US148222 | 1998-09-04 | ||
| PCT/US1999/020090 WO2000015003A2 (en) | 1998-09-04 | 1999-09-02 | Low-frequency audio enhancement system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69919728D1 true DE69919728D1 (de) | 2004-09-30 |
| DE69919728T2 DE69919728T2 (de) | 2005-09-08 |
Family
ID=22524824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69919728T Expired - Lifetime DE69919728T2 (de) | 1998-09-04 | 1999-09-02 | Niederfrequenz-audioverbesserungssystem |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6285767B1 (de) |
| EP (1) | EP1110427B1 (de) |
| JP (1) | JP4668415B2 (de) |
| CN (1) | CN1205843C (de) |
| AT (1) | ATE274785T1 (de) |
| AU (1) | AU6134299A (de) |
| DE (1) | DE69919728T2 (de) |
| HK (1) | HK1036380A1 (de) |
| TW (1) | TW395139B (de) |
| WO (1) | WO2000015003A2 (de) |
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-
1998
- 1998-09-04 US US09/148,222 patent/US6285767B1/en not_active Expired - Lifetime
- 1998-11-06 TW TW087117436A patent/TW395139B/zh not_active IP Right Cessation
-
1999
- 1999-09-02 AT AT99948102T patent/ATE274785T1/de not_active IP Right Cessation
- 1999-09-02 EP EP99948102A patent/EP1110427B1/de not_active Expired - Lifetime
- 1999-09-02 AU AU61342/99A patent/AU6134299A/en not_active Abandoned
- 1999-09-02 WO PCT/US1999/020090 patent/WO2000015003A2/en active IP Right Grant
- 1999-09-02 CN CN99813033.8A patent/CN1205843C/zh not_active Expired - Fee Related
- 1999-09-02 JP JP2000569612A patent/JP4668415B2/ja not_active Expired - Fee Related
- 1999-09-02 DE DE69919728T patent/DE69919728T2/de not_active Expired - Lifetime
-
2001
- 2001-10-09 HK HK01107088A patent/HK1036380A1/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1110427B1 (de) | 2004-08-25 |
| US6285767B1 (en) | 2001-09-04 |
| AU6134299A (en) | 2000-03-27 |
| JP2002524996A (ja) | 2002-08-06 |
| ATE274785T1 (de) | 2004-09-15 |
| DE69919728T2 (de) | 2005-09-08 |
| EP1110427A2 (de) | 2001-06-27 |
| WO2000015003A2 (en) | 2000-03-16 |
| HK1036380A1 (en) | 2001-12-28 |
| CN1205843C (zh) | 2005-06-08 |
| JP4668415B2 (ja) | 2011-04-13 |
| WO2000015003A3 (en) | 2000-08-31 |
| CN1342386A (zh) | 2002-03-27 |
| TW395139B (en) | 2000-06-21 |
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