EP0546619A3 - - Google Patents
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- Publication number
- EP0546619A3 EP0546619A3 EP19920203748 EP92203748A EP0546619A3 EP 0546619 A3 EP0546619 A3 EP 0546619A3 EP 19920203748 EP19920203748 EP 19920203748 EP 92203748 A EP92203748 A EP 92203748A EP 0546619 A3 EP0546619 A3 EP 0546619A3
- Authority
- EP
- European Patent Office
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80535691A | 1991-12-09 | 1991-12-09 | |
US805356 | 1991-12-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0546619A2 EP0546619A2 (en) | 1993-06-16 |
EP0546619A3 true EP0546619A3 (en) | 1994-04-20 |
EP0546619B1 EP0546619B1 (en) | 1998-09-23 |
Family
ID=25191353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920203748 Expired - Lifetime EP0546619B1 (en) | 1991-12-09 | 1992-12-03 | Low frequency audio doubling and mixing circuit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0546619B1 (en) |
JP (1) | JPH05328481A (en) |
DE (1) | DE69227091T2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0746083A (en) * | 1993-07-27 | 1995-02-14 | Toshiba Corp | Sound synthesizing and band limiting circuit and low-frequency sound reinforcing circuit |
JPH08237800A (en) * | 1995-02-27 | 1996-09-13 | Matsushita Electric Ind Co Ltd | Low tone intensifying circuit |
TW343417B (en) * | 1996-05-08 | 1998-10-21 | Philips Eloctronics N V | Circuit, audio system and method for processing signals, and a harmonics generator |
FI105522B (en) * | 1996-08-06 | 2000-08-31 | Sample Rate Systems Oy | Arrangement for home theater or other audio equipment |
US5930373A (en) * | 1997-04-04 | 1999-07-27 | K.S. Waves Ltd. | Method and system for enhancing quality of sound signal |
US6792119B1 (en) | 1997-05-05 | 2004-09-14 | Koninklijke Philips Electronics N.V. | Audio system |
CN1153504C (en) * | 1997-11-07 | 2004-06-09 | 皇家菲利浦电子有限公司 | Audio system comprising audio signal processing circuit |
JP2001507911A (en) | 1997-11-07 | 2001-06-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Audio system having audio signal processing circuit |
AU1072099A (en) * | 1997-11-17 | 1999-06-07 | Srs Labs, Inc | Low-frequency audio simulation system |
US6285767B1 (en) | 1998-09-04 | 2001-09-04 | Srs Labs, Inc. | Low-frequency audio enhancement system |
KR100684054B1 (en) * | 1998-09-08 | 2007-02-16 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Means for bass enhancement in an audio system |
WO2000057673A1 (en) * | 1999-03-24 | 2000-09-28 | Koninklijke Philips Electronics N.V. | Band stop filter |
US7031474B1 (en) | 1999-10-04 | 2006-04-18 | Srs Labs, Inc. | Acoustic correction apparatus |
US7277767B2 (en) | 1999-12-10 | 2007-10-02 | Srs Labs, Inc. | System and method for enhanced streaming audio |
EP1168296B1 (en) * | 2000-05-30 | 2004-10-27 | Yamaha Corporation | Waveform signal generation method with pseudo low tone synthesis |
WO2003028405A1 (en) * | 2001-09-21 | 2003-04-03 | Siemens Aktiengesellschaft | Method and device for controlling the bass reproduction of audio signals in electroacoustic transducers |
US7474752B2 (en) * | 2003-09-16 | 2009-01-06 | Koninklijke Philips Electronics N.V. | Audio frequency range adaptation |
US9236842B2 (en) | 2011-12-27 | 2016-01-12 | Dts Llc | Bass enhancement system |
US9258664B2 (en) | 2013-05-23 | 2016-02-09 | Comhear, Inc. | Headphone audio enhancement system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710146A (en) * | 1970-07-09 | 1973-01-09 | Sony Corp | Frequency doubler circuit |
GB2153187A (en) * | 1984-01-20 | 1985-08-14 | Linn Prod Ltd | A method of processing audio information |
US4607381A (en) * | 1984-10-05 | 1986-08-19 | Sony Corporation | Signal mixing circuit |
US4734591A (en) * | 1985-04-26 | 1988-03-29 | Kabushiki Kaisha Toshiba | Frequency doubler |
-
1992
- 1992-12-03 EP EP19920203748 patent/EP0546619B1/en not_active Expired - Lifetime
- 1992-12-03 DE DE1992627091 patent/DE69227091T2/en not_active Expired - Fee Related
- 1992-12-07 JP JP4326729A patent/JPH05328481A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710146A (en) * | 1970-07-09 | 1973-01-09 | Sony Corp | Frequency doubler circuit |
GB2153187A (en) * | 1984-01-20 | 1985-08-14 | Linn Prod Ltd | A method of processing audio information |
US4607381A (en) * | 1984-10-05 | 1986-08-19 | Sony Corporation | Signal mixing circuit |
US4734591A (en) * | 1985-04-26 | 1988-03-29 | Kabushiki Kaisha Toshiba | Frequency doubler |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
US8509464B1 (en) | 2006-12-21 | 2013-08-13 | Dts Llc | Multi-channel audio enhancement system |
US9232312B2 (en) | 2006-12-21 | 2016-01-05 | Dts Llc | Multi-channel audio enhancement system |
Also Published As
Publication number | Publication date |
---|---|
EP0546619A2 (en) | 1993-06-16 |
DE69227091T2 (en) | 1999-05-20 |
EP0546619B1 (en) | 1998-09-23 |
JPH05328481A (en) | 1993-12-10 |
DE69227091D1 (en) | 1998-10-29 |
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