GoerTek has been granted a patent for a sound production device that includes a housing and a vibration assembly. The device features a system stabilization component, which is a line-like structure made of wound metal wire. This component is bonded to the voice coil and the housing, providing stability to the system. The system stabilization component is in a planar structure and is positioned perpendicular to the vibration direction of the voice coil. GlobalData’s report on GoerTek gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on GoerTek, Acoustic authentication was a key innovation area identified from patents. GoerTek's grant share as of September 2023 was 63%. Grant share is based on the ratio of number of grants to total number of patents.

A sound production device with a system stabilization component

Source: United States Patent and Trademark Office (USPTO). Credit: GoerTek Inc

A recently granted patent (Publication Number: US11778386B2) describes a sound production device that includes a housing and a vibration assembly. The vibration assembly consists of a voice coil with a hollow columnar structure and a vibration diaphragm bonded to one end of the voice coil. The device also includes a system stabilization component that is bonded to either the first end face of the voice coil, the second end face of the voice coil, or a side wall of the voice coil. The system stabilization component is a planar structure located in a plane perpendicular to the vibration direction of the voice coil.

The system stabilization component is further described as having a wound metal wire line-like structure, including a first connection part connected to the voice coil, a deformation part, and a second connection part connected to the housing. The first connection part has an arc-shaped structure and is fixedly bonded to the first end face or the second end face of the voice coil. The system stabilization component also includes a third bonding zone that protrudes from the first bonding zone and is electrically connected to a lead of the voice coil.

The patent also mentions various configurations and features of the system stabilization component, such as the inclusion of a second bonding zone and a continuous structure between the first bonding zone and the second bonding zone. The lead of the voice coil intersects with the first connection line and the second connection line of the system stabilization component and is connected to them. The voice coil itself is described as having a wound voice coil wire with a conductive core and a non-conductive insulating material. The insulating material is removed at the intersections with the first connection line and the second connection line to expose the conductive cores.

The housing of the sound production device is equipped with a pad that is electrically connected to an external circuit. The second connection part of the system stabilization component includes a first fixation part that is electrically connected to the pad. The housing also has a positioning column to which the system stabilization component is bonded, and the second connection part is wound on the side wall of the positioning column. The patent also mentions the possibility of using multiple system stabilization components uniformly disposed along the circumference of the voice coil.

Overall, this patent describes a sound production device with a unique system stabilization component that helps improve the stability and performance of the device. The device can be used in various electronic apparatuses.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.