Title:
INPUT DETECTION APPARATUS AND RELATED INPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/030251
Kind Code:
A1
Abstract:
The present application provides an input detection apparatus and a related input device. The input detection apparatus comprises at least two first lasers, at least two second lasers, and a processor. The lasers can emit laser light and generate self-mixing interference signals when the laser light is reflected from a reference plane into resonant cavities of the lasers. The processor can determine a first displacement of the input detection apparatus on the reference plane according to the self-mixing interference signals generated by the first lasers and relative position information between the at least two first lasers, and determine a second displacement of the input detection apparatus on the reference plane according to the self-mixing interference signal generated by each second laser and relative position information between the at least two second lasers; and the processor determines a movement path of the input detection apparatus on the reference plane according to the first displacement and the second displacement. While realizing a mouse control function, the present application provides an experience similar to that of a user holding a pen to write or draw naturally, thus providing good handwriting and drawing experience.
Inventors:
HOU XIAOKE (CN)
Application Number:
PCT/CN2022/115505
Publication Date:
March 09, 2023
Filing Date:
August 29, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F3/03
Foreign References:
| US20200374620A1 | 2020-11-26 | |||
| US20190317639A1 | 2019-10-17 | |||
| CN107239156A | 2017-10-10 | |||
| CN202111015195A | 2021-08-31 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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