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Head-mounted display device and method thereof

A display and head-mounted technology, applied in the direction of instruments, sensors, sensor components, etc.

Inactive Publication Date: 2019-03-05
META PLATFORMS TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using a pair of bone conduction transducers for both ears can lead to crosstalk due to the cranium in the user's skull sharing a common medium for transmitting vibrations

Method used

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  • Head-mounted display device and method thereof
  • Head-mounted display device and method thereof
  • Head-mounted display device and method thereof

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Embodiment Construction

[0015] The embodiments are described herein with reference to the drawings. Concepts disclosed herein may, however, be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. In the description, well-known features and technical details may be omitted to avoid unnecessarily obscuring features of the implementations.

[0016] In the drawings, the same reference numerals in the drawings denote the same elements. The shapes, sizes, regions, etc. of the drawings may be exaggerated for clarity.

[0017] Embodiments relate to actively reducing or eliminating crosstalk vibrations caused by the use of multiple bone conduction transducers transmitting vibrations in response to bone conduction signals. An anti-crosstalk signal is generated using a transfer function estimated based on vibrations detected in the vibration sensor assembly. A bone conduction transducer assembly and a vibration sensor assembly may be included in the ...

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Abstract

The invention relates to a head-mounted display device and a method thereof. Embodiments relate to crosstalk cancellation to reduce crosstalk vibrations during use of multiple bone conduction transducers. A system, for example, a head-mounted display (HMD) for providing audio to a user, uses vibration sensors to detect vibrations caused by the bone conduction transducers. In particular, a vibration sensor may generate an error signal representing residual vibrations due to crosstalk at a given ear region of the user. The system uses estimated transfer functions for noise propagation paths through the user's head to generate an anti-crosstalk signal. In response to the anti-crosstalk signal, a bone conduction transducer transmits anti-crosstalk vibrations that reduce the error signal at thegiven ear region.

Description

technical field [0001] The present disclosure relates generally to hearing systems and in particular to crosstalk cancellation in hearing systems. Background technique [0002] Head-mounted displays (HMDs) can be used to present virtual and / or augmented information to users. For example, augmented reality (AR) headsets or virtual reality (VR) headsets may be used to simulate augmented / virtual reality. Traditionally, users of AR / VR headsets wear the headset to receive or otherwise experience computer-generated sound. However, wearing headphones suppresses sounds from the real world environment, which may expose the user to unanticipated hazards and also inadvertently isolate the user from the environment. Furthermore, a headset detached from the HMD's housing or strap may be aesthetically unpleasant and may also be damaged through use. [0003] Therefore, instead of headphones, bone conduction transducers can be used in the HMD. Bone conduction transducers are placed arou...

Claims

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Application Information

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IPC IPC(8): H04R23/00G02B27/01
CPCG02B27/017H04R23/00G02B2027/0178H04R5/033H04R5/04H04S1/002H04S7/304H04S2400/11H04S2400/15H04S2420/01H04R1/028G02B2027/0138H04R2460/13G02B2027/014G02B27/0172H04R3/14H04R3/04
Inventor 安东尼奥·约翰·米勒
Owner META PLATFORMS TECH LLC
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