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JP-3255741-U - Glasses-type user terminal

JP3255741UJP 3255741 UJP3255741 UJP 3255741UJP-3255741-U

Abstract

[Problem] To provide a glasses-type user terminal equipped with a sound collection structure. [Solution] The glasses-type user terminal 1 includes a nose portion 12 positioned on the lower center of the frame 10, a sound-collecting opening formed on the lower or front lower surface of the nose portion and inclined to face the user's mouth when worn, an acoustic guidance passage formed inside the nose portion and communicating with the sound-collecting opening, and a microphone module positioned inside the nose portion corresponding to the exit of the acoustic guidance passage. Guide lips protruding outward from the frame are provided around the periphery of the sound-collecting opening, and a hood partially covering the sound-collecting opening is provided on the front side of the sound-collecting opening. The acoustic guidance passage includes a bent section that bends at least once to attenuate the straight-line component of the airflow. This enables high-sensitivity sound collection near the mouth, suppression of wind noise and turbulence, and improved microphone reliability. [Selection Diagram] Figure 1

Inventors

  • ジュ クァンス
  • ユン ソンウク

Assignees

  • ワイオン インコーポレーテッド

Dates

Publication Date
20260507
Application Date
20260303

Claims (4)

  1. In a glasses-type user terminal, The nose piece is located on the lower center of the frame, A sound-collecting opening is formed on the lower or front lower surface of the nasal portion and is inclined to face the user's mouth when worn, An acoustic induction passage formed inside the nose portion and communicating with the sound collection opening, A microphone module is positioned inside the nose portion so as to correspond to the exit of the acoustic induction passage, Equipped with, A guide lip is provided that protrudes from the outer surface of the frame at the periphery of the sound-collecting opening. A hood is provided on the front side of the sound collection opening, extending so as to partially cover the sound collection opening. The aforementioned acoustic induction path is characterized by including a bent section that bends at least once in order to attenuate the straight-line component of the airflow, thus forming a spectacle-type user terminal.
  2. The central axis of the sound-collecting aperture is formed to be inclined forward by 10° to 35° with respect to the vertical direction. The spectacle-type user terminal according to claim 1, characterized in that the sound-collecting aperture is formed in the shape of a circle, an ellipse, or an elongated hole, and in the case of a circle, the effective diameter is in the range of 0.8 mm to 2.5 mm, and in the case of an ellipse or an elongated hole, the minor axis is in the range of 0.8 mm to 2.5 mm and the major axis length is in the range of 1.5 mm to 5.0 mm.
  3. The acoustic induction passage includes a converging section whose cross-section gradually decreases as it moves from the sound collection opening side toward the microphone module side. The spectacle-type user terminal according to claim 2, characterized in that the effective length of the acoustic induction passage is in the range of 10 mm to 35 mm, and the average passage diameter or hydraulic diameter of the acoustic induction passage is in the range of 1.0 mm to 3.5 mm.
  4. A porous wind noise blocking filter is placed at the sound collection opening or the entrance to the acoustic induction passage, and a water-repellent and stain-resistant membrane is laminated inside the wind noise blocking filter. The wind noise blocking filter and the water-repellent/stain-resistant membrane are placed on a stepped structure formed around the sound collection opening and pressed and fixed by a fixing ring or cap structure. The spectacle-type user terminal according to claim 3, characterized in that the thickness of the wind noise blocking filter is in the range of 0.5 mm to 2.0 mm, and the thickness of the water-repellent and stain-resistant membrane is in the range of 10 μm to 80 μm.

Description

This invention relates to a glasses-type user terminal equipped with a sound-collecting structure. In recent years, with the advancement of augmented reality (AR) technology, the proliferation of glasses-type wearable devices has progressed, and the importance of voice recognition technology as an interface for controlling these devices has increased. However, due to the nature of wearing glasses-type user terminals while moving outdoors, they are susceptible to environmental constraints such as exposure to strong wind noise and ambient noise. Conventional eyeglass-type terminals primarily place microphones on the temples (arms) or sides of the frame. However, the distance from the speech source (the user's mouth) is significant, leading to a lower signal-to-noise ratio (SNR) and disadvantages in terms of sound pickup directionality. On the other hand, when the microphone is placed near the nose (bridge/nose pad) close to the speech source, foreign matter such as sweat, condensation from exhaled breath, and dust may enter, potentially damaging the microphone module or degrading its acoustic performance, leading to reliability issues. Therefore, a structural sound collection design is required that can achieve high-quality sound collection near the mouth while protecting the microphone from external airflow and sources of contamination. This is a perspective view of a glasses-type user terminal according to one embodiment of the present invention.This is a front view of a glasses-type user terminal according to one embodiment of the present invention. Figure 1 is a perspective view of a glasses-type user terminal (1) according to one embodiment of the present invention, and Figure 2 is a front view. Referring to Figure 1, the eyeglass-type user terminal (1) may include a frame (10) positioned on the front of the user's face. The frame (10) includes a pair of left and right rim portions (11L, 11R), to which lens portions (20L, 20R) may be attached. Connecting portions (30L, 30R) are positioned at the left and right ends of the frame (10), and the connecting portions (30L, 30R) may include a hinge structure that rotatably connects the frame (10) to the temple portions (40L, 40R). For example, the hinge structure may include a first hinge element (31L, 31R) and a second hinge element (32L, 32R), and a support portion (42L, 42R) that supports the area around the hinge. The temples (40L, 40R) extend rearward from the frame (10), and a cover/reinforcement portion (41L, 41R) may be formed on a part of the temples (40L, 40R). A rear end portion (50L, 50R) for ear hooks may be positioned at the rear end of the temples (40L, 40R), and at least a portion of the rear end portion (50L, 50R) may be provided with a contact portion (60L, 60R) for user contact. Furthermore, the rear end portions (50Ls, 50Rs) may be provided as areas where sensors or functional surfaces (e.g., contact detection, button areas, etc.) are located. Referring to Figures 1 and 2, a nose portion (12) may be positioned on the lower center of the frame (10). The nose portion (12) is formed to protrude below the bridge region, and a key feature of this invention is that the sound-collecting structure is concentrated in the nose portion (12). For example, the nose portion (12) has a generally trapezoidal or rectangular shape with rounded corners in a front view, and is positioned close to the lower side of the user's nostrils and near the philtrum when worn. The external dimensions of the nose portion (12) may vary depending on the embodiment, but as an example, the left-right width (X direction) may be set within the range of 12 to 28 mm, the vertical height (Z direction) within the range of 6 to 14 mm, and the front-to-back thickness (Y direction) within the range of 4 to 10 mm. According to this invention, the sound-collecting structure of the nose portion (12) can be embodied as a combination of (i) a sound-collecting opening, (ii) an airflow-blocking shape around the opening, (iii) an internal acoustic induction passage (duct), (iv) a filter/membrane layer, (v) a drainage structure, and (vi) a microphone module support structure. (Sound collection opening) The lower or front lower (forward-downward) surface of the nose portion (12) may be provided with a sound-collecting opening that is inclined to face the user's mouth. The central axis of the sound-collecting opening is inclined to face the mouth when worn, and can be inclined forward in a range of 10° to 35° with respect to the vertical direction (Z-axis), for example. The sound-collecting opening may be circular, elliptical, or elongated, and its diameter or minor axis may be in the range of 0.8 to 2.5 mm, and its major axis length in the range of 1.5 to 5.0 mm. There may be one sound-collecting opening, or multiple openings (e.g., 2 to 4) may be arranged on the left and right sides, and the distance between the centers of the multiple openings may be set in the range of 2 to 6 mm. (Guide lip a