Title:
サンプリングレート変換回路、レシプロカルカウント値生成回路および物理量センサー
Document Type and Number:
Japanese Patent JP6809201
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sampling rate conversion circuit, a reciprocal count value generation circuit, and a physical quantity sensor which are excellent in accuracy and capable of reducing power consumption.SOLUTION: Provided is a sampling rate conversion circuit which converts a sampling rate of a filter output value that is obtained by performing filter processing on a delta sigma modulation signal. The sampling rate conversion circuit comprises: a weighting coefficient generation part which acquires a weighting coefficient on the basis of an output timing of the filter output value and a sampling timing; and a sampling part which outputs, as a sampling value, the filter output value thus weighted with the use of the weighting coefficient. Without an insensitive period, the sampling part outputs, as the sampling value, a value weighted according to a ratio of the filter output value in an interval specified by the sampling timing.SELECTED DRAWING: Figure 1
Inventors:
Todoroki Masayoshi
Application Number:
JP2016246004A
Publication Date:
January 06, 2021
Filing Date:
December 19, 2016
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H03H17/00; H03M3/02
Domestic Patent References:
| JP8510100A | ||||
| JP2015220552A | ||||
| JP2008505515A |
Foreign References:
| WO2006077795A1 |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi