Invention Grant
- Patent Title: Optical navigation device which can determine dirtiness level of cover or fix multi light pattern issue
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Application No.: US17881586Application Date: 2022-08-04
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Publication No.: US11976942B2Publication Date: 2024-05-07
- Inventor: Guo-Zhen Wang
- Applicant: PixArt Imaging Inc.
- Applicant Address: TW Hsin-Chu
- Assignee: PixArt Imaging Inc.
- Current Assignee: PixArt Imaging Inc.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Main IPC: G01C3/02
- IPC: G01C3/02 ; A47L9/00 ; A47L9/28 ; A47L11/40 ; G01C21/20 ; G01N21/94
Abstract:
An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern. The present invention also discloses an optical navigation device with a first optical sensor and a second optical sensor.
Public/Granted literature
- US20220373329A1 OPTICAL NAVIGATION DEVICE WHICH CAN DETERMINE DIRTINESS LEVEL OF COVER OR FIX MULTI LIGHT PATTERN ISSUE Public/Granted day:2022-11-24
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