Chinese character writing and decoding method for invasive brain-computer interface
US12386424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2024 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Aug 26, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2276
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed in the present invention is a method for decoding Chinese character writing for an invasive brain-computer interface. In a practical application, a corresponding motor neural signal is divided into two states of a writing stroke and a writing stroke break in view of inconsistency of the writing stroke and the writing stroke break during Chinese character writing, and different filters are trained. A hidden markov model (HMM algorithm) and a Viterbi algorithm are used to judge a task state of the motor neural signal, and the corresponding signal is put into a corresponding decoder. The present invention effectively reduces influence of difference of neural data in different states on the decoder, and improves the performance and robustness of the decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.