JP4137902B2 - 検出装置 - Google Patents
検出装置 Download PDFInfo
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- JP4137902B2 JP4137902B2 JP2005061848A JP2005061848A JP4137902B2 JP 4137902 B2 JP4137902 B2 JP 4137902B2 JP 2005061848 A JP2005061848 A JP 2005061848A JP 2005061848 A JP2005061848 A JP 2005061848A JP 4137902 B2 JP4137902 B2 JP 4137902B2
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- resonant element
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- resonant
- change
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Description
以上のようにこの実施形態の検出装置は、指の接近、離隔、指による押圧を検出することができる。このとき、式(1)中のL41[H]は、M[H]の値となる。
4 第1のLC共振素子
5 自励発信器
7,207 第2のLC共振素子
9 検出回路(検出手段)
Claims (4)
- 第1のLC共振素子を含む自励発振手段と、
前記第1のLC共振素子に所定間隔を置いて相対するように配置された第2のLC共振素子と、
前記第2のLC共振素子に対する被検知物体の接近・離間に応じて生じる前記自励発振手段の発振周波数又は位相の変化、及び前記第2のLC共振素子に対する前記被検知物体の接触・押圧による前記第1、第2のLC共振素子間の距離の変化に応じて生じる前記自励発振手段の発振周波数又は位相の変化を検出する検出手段と
を備えていることを特徴とする検出装置。 - 第1のLC共振素子を含む自励発振手段と、
被検知物体に装着可能であって、固定状態の前記第1のLC共振素子に対して接近、離間可能な第2のLC共振素子と、
前記第1のLC共振素子に対する前記第2のLC共振素子の接近・離間による前記第1、第2のLC共振素子間の距離の変化、前記第1のLC共振素子に対する前記第2のLC共振素子の接触・押圧による両素子の密着度の変化に応じて生じる前記自励発振手段の発振周波数又は位相の変化を検出する検出手段と
を備えていることを特徴とする検出装置。 - 前記検出手段は、予め基準として定めた基準発振周波数又は位相と前記自励発振手段の発振周波数又は位相とを比較して、その比較結果に基づいて前記自励発振手段の発振周波数又は位相の変化を検出することを特徴とする請求項1又は2記載の検出装置。
- 請求項1〜3のいずれか1記載の検出装置を備えていることを特徴とする入力装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005061848A JP4137902B2 (ja) | 2005-03-07 | 2005-03-07 | 検出装置 |
Applications Claiming Priority (1)
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JP2005061848A JP4137902B2 (ja) | 2005-03-07 | 2005-03-07 | 検出装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006246289A JP2006246289A (ja) | 2006-09-14 |
JP4137902B2 true JP4137902B2 (ja) | 2008-08-20 |
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JP2005061848A Expired - Fee Related JP4137902B2 (ja) | 2005-03-07 | 2005-03-07 | 検出装置 |
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Families Citing this family (22)
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US10908200B2 (en) | 2018-03-29 | 2021-02-02 | Cirrus Logic, Inc. | Resonant phase sensing of resistive-inductive-capacitive sensors |
US11537242B2 (en) | 2018-03-29 | 2022-12-27 | Cirrus Logic, Inc. | Q-factor enhancement in resonant phase sensing of resistive-inductive-capacitive sensors |
US10725549B2 (en) | 2018-03-29 | 2020-07-28 | Cirrus Logic, Inc. | Efficient detection of human machine interface interaction using a resonant phase sensing system |
US10642435B2 (en) | 2018-03-29 | 2020-05-05 | Cirrus Logic, Inc. | False triggering prevention in a resonant phase sensing system |
GB2573644A (en) * | 2018-03-29 | 2019-11-13 | Cirrus Logic Int Semiconductor Ltd | Resonant phase sensing of resistive-inductive-capacitive sensors |
US10921159B1 (en) | 2018-03-29 | 2021-02-16 | Cirrus Logic, Inc. | Use of reference sensor in resonant phase sensing system |
US11092657B2 (en) | 2018-03-29 | 2021-08-17 | Cirrus Logic, Inc. | Compensation of changes in a resonant phase sensing system including a resistive-inductive-capacitive sensor |
GB201902101D0 (en) | 2019-02-15 | 2019-04-03 | Mbda Uk Ltd | Improvements in and relating to carridge of a store on a launch platform |
US11536758B2 (en) | 2019-02-26 | 2022-12-27 | Cirrus Logic, Inc. | Single-capacitor inductive sense systems |
US11402946B2 (en) | 2019-02-26 | 2022-08-02 | Cirrus Logic, Inc. | Multi-chip synchronization in sensor applications |
US10935620B2 (en) | 2019-02-26 | 2021-03-02 | Cirrus Logic, Inc. | On-chip resonance detection and transfer function mapping of resistive-inductive-capacitive sensors |
US10948313B2 (en) | 2019-02-26 | 2021-03-16 | Cirrus Logic, Inc. | Spread spectrum sensor scanning using resistive-inductive-capacitive sensors |
US11079874B2 (en) | 2019-11-19 | 2021-08-03 | Cirrus Logic, Inc. | Virtual button characterization engine |
US11579030B2 (en) | 2020-06-18 | 2023-02-14 | Cirrus Logic, Inc. | Baseline estimation for sensor system |
US11835410B2 (en) | 2020-06-25 | 2023-12-05 | Cirrus Logic Inc. | Determination of resonant frequency and quality factor for a sensor system |
US11868540B2 (en) | 2020-06-25 | 2024-01-09 | Cirrus Logic Inc. | Determination of resonant frequency and quality factor for a sensor system |
US11619519B2 (en) | 2021-02-08 | 2023-04-04 | Cirrus Logic, Inc. | Predictive sensor tracking optimization in multi-sensor sensing applications |
US11821761B2 (en) | 2021-03-29 | 2023-11-21 | Cirrus Logic Inc. | Maximizing dynamic range in resonant sensing |
US11808669B2 (en) | 2021-03-29 | 2023-11-07 | Cirrus Logic Inc. | Gain and mismatch calibration for a phase detector used in an inductive sensor |
US11507199B2 (en) | 2021-03-30 | 2022-11-22 | Cirrus Logic, Inc. | Pseudo-differential phase measurement and quality factor compensation |
US11979115B2 (en) | 2021-11-30 | 2024-05-07 | Cirrus Logic Inc. | Modulator feedforward compensation |
US11854738B2 (en) | 2021-12-02 | 2023-12-26 | Cirrus Logic Inc. | Slew control for variable load pulse-width modulation driver and load sensing |
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2005
- 2005-03-07 JP JP2005061848A patent/JP4137902B2/ja not_active Expired - Fee Related
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