PERCEPTION IN TACTILE SYSTEM

To provide a system for tactile feedback to an upper part of a mutual interaction surface which necessitates non-contact with any of a tool, an accessory or a surface itself.SOLUTION: An aerial tactile feedback system creates an acoustic field from a transducer array, a plurality of defined control...

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Bibliographic Details
Main Authors SRIRAM SUBRAMANIAN, BENJAMIN JOHN OLIVER LONG, WILLIAM THIERRY ALAIN FRIER, THOMAS ANDREW CARTER, ROBERT CHARLES BLENKINSOPP, SUE ANN SEAH
Format Patent
LanguageEnglish
Japanese
Published 12.08.2021
Subjects
CALCULATING
COMPUTING
COUNTING
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PHYSICS
PUBLIC ADDRESS SYSTEMS
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Summary:To provide a system for tactile feedback to an upper part of a mutual interaction surface which necessitates non-contact with any of a tool, an accessory or a surface itself.SOLUTION: An aerial tactile feedback system creates an acoustic field from a transducer array, a plurality of defined control points have well-known aerial relationships with respect to the transducer array, and amplitudes are allocated to the points, respectively, and modulated by using amplitude modulation. By smoothly interpolating transducer activation coefficients between a plurality of sets of control points which are discrete and basic with respect to each other by allocating the activation coefficients so as to indicate initial states of transducers in the transducer array, and also reducing audible contents by the occurrence of a smooth sine amplitude transition in a control point position, the plurality of control points are moved in the acoustic field while adjusting a temporal change so that the temporal change which occurs in the acoustic field is accommodated within a prescribed time threshold.SELECTED DRAWING: None 【課題】ツール、付属物または表面そのもののいずれとも非接触であることを必要とする相互作用表面上方に触覚フィードバックのためのシステムを提供する。【解決手段】空中触覚フィードバックシステムは、トランスデューサーアレイから音響場を生成し、定義された複数の制御ポイントはそれぞれ、トランスデューサーアレイに対する既知の空間関係を有し、それぞれに振幅を割り当て、振幅変調を用いて変調し、トランスデューサーアレイ内の各トランスデューサーの初期状態を表すように活性化係数を割り当てることにより、又は離散的で互いに素な複数組の制御ポイント間のトランスデューサー活性化係数を平滑に補間することにより、平滑な正弦振幅推移が制御ポイント位置において発生することにより、可聴内容を低減し、音響場内に発生する時間的変化が所定の時間閾値内に収まるように時間的変化を調節しつつ、複数の制御ポイントを音響場内において移動させる。【選択図】なし
Bibliography:Application Number: JP20210068374