CN101894483B - 一种点读机及其收发信号频率校正方法 - Google Patents
一种点读机及其收发信号频率校正方法 Download PDFInfo
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- CN101894483B CN101894483B CN 201010229581 CN201010229581A CN101894483B CN 101894483 B CN101894483 B CN 101894483B CN 201010229581 CN201010229581 CN 201010229581 CN 201010229581 A CN201010229581 A CN 201010229581A CN 101894483 B CN101894483 B CN 101894483B
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CN 201010229581 CN101894483B (zh) | 2010-07-19 | 2010-07-19 | 一种点读机及其收发信号频率校正方法 |
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CN 201010229581 CN101894483B (zh) | 2010-07-19 | 2010-07-19 | 一种点读机及其收发信号频率校正方法 |
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CN101894483A CN101894483A (zh) | 2010-11-24 |
CN101894483B true CN101894483B (zh) | 2013-04-24 |
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CN107787038A (zh) * | 2016-08-26 | 2018-03-09 | 山东数智体育科技股份有限公司 | 一种频率校正的方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2616965Y (zh) * | 2003-03-06 | 2004-05-19 | 杨洪文 | 语音图书装置 |
KR20060119725A (ko) * | 2005-05-20 | 2006-11-24 | 엘지전자 주식회사 | 데이터 저장장치를 갖는 펜 입력기 |
CN201159944Y (zh) * | 2008-03-06 | 2008-12-03 | 东莞市步步高教育电子产品有限公司 | 一种点读机 |
CN101539816A (zh) * | 2009-04-16 | 2009-09-23 | 台均科技(深圳)有限公司 | 电磁笔、电磁信号发射方法和处理方法、装置及设备 |
CN101685366A (zh) * | 2008-09-26 | 2010-03-31 | 汉王科技股份有限公司 | 具有多点触摸功能的电磁感应装置 |
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JP3219343B2 (ja) * | 1993-09-29 | 2001-10-15 | 株式会社ワコム | 位置検出装置 |
US20060262106A1 (en) * | 2005-05-20 | 2006-11-23 | Lg Electronics Inc. | Pen input device with data storage |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2616965Y (zh) * | 2003-03-06 | 2004-05-19 | 杨洪文 | 语音图书装置 |
KR20060119725A (ko) * | 2005-05-20 | 2006-11-24 | 엘지전자 주식회사 | 데이터 저장장치를 갖는 펜 입력기 |
CN201159944Y (zh) * | 2008-03-06 | 2008-12-03 | 东莞市步步高教育电子产品有限公司 | 一种点读机 |
CN101685366A (zh) * | 2008-09-26 | 2010-03-31 | 汉王科技股份有限公司 | 具有多点触摸功能的电磁感应装置 |
CN101539816A (zh) * | 2009-04-16 | 2009-09-23 | 台均科技(深圳)有限公司 | 电磁笔、电磁信号发射方法和处理方法、装置及设备 |
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