Device and methods for continuosly refreshing a tactile display
US10269264B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Sep 16, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B21/004
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A tactile display apparatus renders information to a user, and comprises multiple braille cells attached adjacent to each other along a predefined path, a set of pins housed within the braille cells, and a set of pin holders inserted on the braille cells. The braille cells are moved periodically at a predefined speed via a driving assembly. The pins are selectively actuated by actuators, where the linear motion of the braille cells allow the user to contact the pins to read the information represented by the arrangement of the pins. The pin holders are moved along a defined path to contact the pins, and each pin holder comprises a rigid body and multiple elastic rings attached along the rigid body. The number of elastic rings is equal to the number of pins to allow the pin holder to selectively hold or release a pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.