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    • 6. 发明申请
    • COMMUNICATION DEVICE COMPRISING AN ACOUSTICAL SEAL AND A VENT OPENING
    • WO2019052715A1
    • 2019-03-21
    • PCT/EP2018/069105
    • 2018-07-13
    • SONOVA AG
    • KUIPERS, Erwin
    • H04R1/10H04R1/28H04R25/00
    • A communication device configured for use in a user's ear canal comprises a sealing mechanism (35, 629) configured to acoustically seal a section of the ear canal and a sound conduit (30, 330, 430, 630, 730, 830, 930, 1030, 1130, 1230, 1430, 1530, 1630, 1730) in acoustic communication with a sound source (14, 614). The sound conduit comprises a first opening (30B, 636), a second opening (30C, 637, 737, 937, 1037, 1237, 1537), a conduit housing (33, 632, 732, 832, 932, 1032, 1132, 1232, 1432, 1532, 1632), and a vent opening (36A, 36B, 336, 336A, 336B, 651 - 655, 1051 - 1056, 1151, 1251, 1252). In order to provide a reliable adjustment for the venting of sound waves in between a sealed section of the ear canal and an ambient environment outside the sealed section, an acoustic valve comprising a valve member (39, 339, 339A, 339B, 439, 510A, 510B, 670, 770, 870, 1070, 1270, 1470, 1670, 1770) is moveably coupled with the conduit housing, which moveable coupling is configured to provide a relative motion of the valve member and the conduit housing, such that by said relative motion the acoustic valve is configured to provide for at least one of opening the vent opening, closing the vent opening, and adjusting a size of the vent opening, wherein the communication device further comprises an electrical actuator (45, 645, 1280, 1380, 1480, 1680, 1780) configured to activate said relative motion.
    • 10. 发明申请
    • MICROPHONE ASSEMBLY TO BE WORN AT A USER'S CHEST
    • WO2018127298A1
    • 2018-07-12
    • PCT/EP2017/050341
    • 2017-01-09
    • SONOVA AG
    • GIGANDET, XavierJOST, Timothée
    • H04R25/00H04R3/00H04R27/00
    • There is provided a microphone assembly (10) to be worn at a user's chest, comprising: at least three microphones (20, 21, 22) for capturing audio signals from the user's voice, the microphones defining a microphone plane; an acceleration sensor (30) for sensing gravitational acceleration in at least two orthogonal dimensions so as to determine a direction of gravity ( G xy ); a beamformer unit (32) for processing the captured audio signals in a manner so as to create a plurality of N acoustic beams (1 a-6a, 1 b-6b) having directions spread across the microphone plane, a unit (34) for selecting a subgroup of M acoustic beams from the N the acoustic beams, wherein the M acoustic beams are those of the N acoustic beams whose direction is closest to the direction (26) antiparallel to the direction of gravity determined from the gravitational acceleration sensed by the acceleration sensor; an audio signal processing unit (36) having M independent channels (36A, 36B), one for each of the M acoustic beams of the subgroup, for producing an output audio signal for each of the M acoustic beams; a unit (38) for estimating the speech quality of the audio signal in each of the channels; and an output unit (40) for selecting the signal of the channel with the highest estimated speech quality as the output signal (42) of the microphone assembly (10).