Abstract
| Original language | English |
|---|---|
| Patent number | US8837743 B2 |
| Priority date | 5/06/09 |
| Publication status | Published - 16 Sep 2014 |
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Bibliographical note
Also published as:EP2438769 (B1)
US2012076306 (A1)
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Surround sound system and method therefor. / Aarts, R.M. (Inventor); Bruijn, de, W.P.J. (Inventor); Lamb, W.J. (Inventor); Sakari Härmä, A. (Inventor).
Patent No.: US8837743 B2.Research output: Patent › Patent publication
TY - PAT
T1 - Surround sound system and method therefor
AU - Aarts, R.M.
AU - Bruijn, de, W.P.J.
AU - Lamb, W.J.
AU - Sakari Härmä, A.
N1 - Also published as: EP2438769 (B1) US2012076306 (A1)
PY - 2014/9/16
Y1 - 2014/9/16
N2 - A surround sound system comprises a receiver (301) for receiving a multichannel spatial signal that comprises at least one surround channel. A directional ultrasound transducer (305) is used for emitting ultrasound towards a surface to reach a listening position (111) via a reflection of the surface. The ultrasound signal may specifically reach the listening position from the side, above or behind of a nominal listener. A first drive unit (303) generates a drive signal for the directional ultrasound transducer (301) from the surround channel. The use of an ultrasound transducer for providing the surround sound signal provides an improved spatial experience while allowing the speaker to be located e.g. to the front of the user.; In particular, an ultrasound beam is much narrower and well defined than conventional audio beams and can accordingly better be directed to provide the desired reflections. In some scenarios, the ultrasound transducer (305) may be supplemented by an audio range loudspeaker (309).
AB - A surround sound system comprises a receiver (301) for receiving a multichannel spatial signal that comprises at least one surround channel. A directional ultrasound transducer (305) is used for emitting ultrasound towards a surface to reach a listening position (111) via a reflection of the surface. The ultrasound signal may specifically reach the listening position from the side, above or behind of a nominal listener. A first drive unit (303) generates a drive signal for the directional ultrasound transducer (301) from the surround channel. The use of an ultrasound transducer for providing the surround sound signal provides an improved spatial experience while allowing the speaker to be located e.g. to the front of the user.; In particular, an ultrasound beam is much narrower and well defined than conventional audio beams and can accordingly better be directed to provide the desired reflections. In some scenarios, the ultrasound transducer (305) may be supplemented by an audio range loudspeaker (309).
UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=8837743B2&KC=B2&FT=D&ND=4&date=20140916&DB=EPODOC&locale=nl_NL
M3 - Patent publication
M1 - US8837743 B2
ER -