Invention Grant
- Patent Title: Vibration rectification error correction device, sensor module, and vibration rectification error correction method
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Application No.: US17562052Application Date: 2021-12-27
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Publication No.: US12000858B2Publication Date: 2024-06-04
- Inventor: Masayoshi Todorokihara
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP 20219504 2020.12.28
- Main IPC: G01P15/097
- IPC: G01P15/097 ; G01C19/5783 ; G01D1/16 ; G01P1/02 ; H03M3/00

Abstract:
A vibration rectification error correction device includes a first filter that operates in synchronization with the measured signal, and a second filter that operates in synchronization with the reference signal, in which the first filter generates a third signal based on a first signal having a first group delay amount and a second signal having a second group delay amount, the second filter receives a signal based on the third signal and outputs a fourth signal, and a first vibration rectification error and a second vibration rectification error have different polarities.
Public/Granted literature
Information query
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