Slim electronic devices and audio transducers incorporated therein
US11137803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Mar 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hinge system having at least three hinge joints, consisting each of a hinge element and an associated contact member. The contact surface of the hinge element of each hinge joint moves relative to the contact surface of the associated contact member to enable rotatable oscillation of the hinge joint about a common axis of rotation during operation. The contact surface of each contact member is convexly curved and the hinge joints comprise convex surfaces facing in different directions to enhance operation of the hinge system. Multiple convex surfaces are preferably formed on a relatively rigid component to reduce manufacturing complexity and improve operation. The hinge system is particularly suited for audio transducer applications, but may also be used in other applications, such as in other electromechanical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.