CN104980149B - 一种应用于非接触式智能ic卡的自校准振荡器 - Google Patents
一种应用于非接触式智能ic卡的自校准振荡器 Download PDFInfo
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- CN104980149B CN104980149B CN201410147294.0A CN201410147294A CN104980149B CN 104980149 B CN104980149 B CN 104980149B CN 201410147294 A CN201410147294 A CN 201410147294A CN 104980149 B CN104980149 B CN 104980149B
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- Synchronisation In Digital Transmission Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
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CN201410147294.0A CN104980149B (zh) | 2014-04-14 | 2014-04-14 | 一种应用于非接触式智能ic卡的自校准振荡器 |
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CN201410147294.0A CN104980149B (zh) | 2014-04-14 | 2014-04-14 | 一种应用于非接触式智能ic卡的自校准振荡器 |
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CN104980149A CN104980149A (zh) | 2015-10-14 |
CN104980149B true CN104980149B (zh) | 2017-12-29 |
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US20200058989A1 (en) | 2018-08-14 | 2020-02-20 | Avx Antenna, Inc. D/B/A Ethertronics, Inc. | Method and System for Controlling a Modal Antenna |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000172806A (ja) * | 1998-12-08 | 2000-06-23 | Hitachi Ltd | 非接触icカード |
CN102682330A (zh) * | 2011-03-17 | 2012-09-19 | 北京同方微电子有限公司 | 一种用于射频识别标签的时钟产生电路及其校准方法 |
CN103106379A (zh) * | 2013-01-09 | 2013-05-15 | 北京工业大学 | 一种具有鲁棒性的非接触式ic卡收数方法 |
CN103441760A (zh) * | 2013-09-10 | 2013-12-11 | 灿芯半导体(上海)有限公司 | 一种高精度环形振荡器及其频率校准电路和频率校准方法 |
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US7432773B2 (en) * | 2005-10-26 | 2008-10-07 | Microchip Technology Incorporated | Method, system and apparatus for reducing oscillator frequency spiking during oscillator frequency adjustment |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000172806A (ja) * | 1998-12-08 | 2000-06-23 | Hitachi Ltd | 非接触icカード |
CN102682330A (zh) * | 2011-03-17 | 2012-09-19 | 北京同方微电子有限公司 | 一种用于射频识别标签的时钟产生电路及其校准方法 |
CN103106379A (zh) * | 2013-01-09 | 2013-05-15 | 北京工业大学 | 一种具有鲁棒性的非接触式ic卡收数方法 |
CN103441760A (zh) * | 2013-09-10 | 2013-12-11 | 灿芯半导体(上海)有限公司 | 一种高精度环形振荡器及其频率校准电路和频率校准方法 |
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Inventor after: Wan Peiyuan Inventor after: Ma Yue Inventor after: Liu Panpan Inventor after: Xiao Hongyi Inventor after: Li Jianjun Inventor after: Tang Jun Inventor after: Lin Pingfen Inventor before: Liu Shanshan Inventor before: Wan Peiyuan Inventor before: Li Jianjun Inventor before: Tang Jun Inventor before: Lin Pingfen |
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