Invention Publication
- Patent Title: DYNAMIC GRAVITY VECTOR ESTIMATION FOR MEMORY CONSTRAINED DEVICES
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Application No.: US18059214Application Date: 2022-11-28
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Publication No.: US20240176427A1Publication Date: 2024-05-30
- Inventor: Federico RIZZARDINI , Lorenzo BRACCO
- Applicant: STMICROELECTRONICS S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMICROELECTRONICS S.r.l.
- Current Assignee: STMICROELECTRONICS S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Main IPC: G06F3/0346
- IPC: G06F3/0346

Abstract:
A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation: estimates an angular rate of change and determines a rotational versor based on the rotational data; and estimates a gravity vector based on the angular rate of change and the rotational versor. The processing circuitry generates a dynamic gravity vector based on the estimated gravity vector, a correction factor and an estimated error in estimated gravity vector. The processing circuitry estimates a linear acceleration and determines an acceleration versor based on the acceleration data, and determines the correction factor based on the linear acceleration. The processing circuitry estimates the error in the estimated gravity vector based on the acceleration versor.
Public/Granted literature
- US12164705B2 Dynamic gravity vector estimation for memory constrained devices Public/Granted day:2024-12-10
Information query
IPC分类: