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1. WO2022002825 - CONTACTLESS MANIPULATION OF OBJECTS USING CONTROLLED ELECTROACOUSTIC TRANSDUCERS

Publication Number WO/2022/002825
Publication Date 06.01.2022
International Application No. PCT/EP2021/067638
International Filing Date 28.06.2021
IPC
G10K 11/34 2006.1
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
18Methods or devices for transmitting, conducting or directing sound
26Sound-focusing or directing, e.g. scanning
34using electrical steering of transducer arrays, e.g. beam steering
G10K 15/00 2006.1
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
15Acoustics not otherwise provided for
CPC
G10K 11/34
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
18Methods or devices for transmitting, conducting, or directing sound
26Sound-focusing or directing, e.g. scanning
34using electrical steering of transducer arrays, e.g. beam steering
G10K 15/00
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
15Acoustics not otherwise provided for
Applicants
  • ETH ZÜRICH [CH]/[CH]
Inventors
  • ALEXANDER-SCHUCK, Marcel
  • RÖTHLISBERGER, Marc
Agents
  • FREI PATENT ATTORNEYS
Priority Data
00805/2030.06.2020CH
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CONTACTLESS MANIPULATION OF OBJECTS USING CONTROLLED ELECTROACOUSTIC TRANSDUCERS
(FR) MANIPULATION SANS CONTACT D'OBJETS À L'AIDE DE TRANSDUCTEURS ÉLECTROACOUSTIQUES COMMANDÉS
Abstract
(EN) The method for operating a device (1) for contactless manipulation of objects (5), involves a device (1) comprising a plurality of electroacoustic transducers (11, 12,...). It comprises: - applying to each of the transducers (11, 12,...) an electrical control signal (S1s, S2s,... ) to produce an acoustic pressure field, wherein a control signal applied to a first one of the transducers is referred to as first control signal (S1s); - causing a change of a total acoustic output power produced by the first transducer (11) by initially applying an initial first control signal and subsequently applying a subsequent first control signal (S1s). In particular, the initial and subsequent first control signals (S1s) can have different signal shapes.
(FR) L'invention concerne un procédé de fonctionnement d'un dispositif (1) pour la manipulation sans contact d'objets (5), faisant intervenir un dispositif (1) comprenant une pluralité de transducteurs électroacoustiques (11, 12,...). Il comprend : l'application à chacun des transducteurs (11, 12,...) d'un signal de commande électrique (S1s, S2s,...) pour produire un champ de pression acoustique, un signal de commande appliqué à un premier des transducteurs étant appelé premier signal de commande (S1s) ; le déclenchement d'une modification d'une puissance de sortie acoustique totale produite par le premier transducteur (11) en appliquant initialement un premier signal de commande initial et en appliquant ensuite un premier signal de commande ultérieur (S1s). En particulier, les premiers signaux de commande initiaux et ultérieurs (S1s) peuvent avoir des formes de signaux différentes.
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