CN102680782A - Method for calculating high-frequency signal frequency by utilizing low-frequency clock source - Google Patents
Method for calculating high-frequency signal frequency by utilizing low-frequency clock source Download PDFInfo
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- CN102680782A CN102680782A CN201210187825XA CN201210187825A CN102680782A CN 102680782 A CN102680782 A CN 102680782A CN 201210187825X A CN201210187825X A CN 201210187825XA CN 201210187825 A CN201210187825 A CN 201210187825A CN 102680782 A CN102680782 A CN 102680782A
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CN201210187825XA CN102680782A (en) | 2012-06-08 | 2012-06-08 | Method for calculating high-frequency signal frequency by utilizing low-frequency clock source |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4786861A (en) * | 1987-09-01 | 1988-11-22 | Sundstrand Data Control, Inc. | Frequency counting apparatus and method |
US20040075425A1 (en) * | 2002-10-22 | 2004-04-22 | Yokogawa Electric Corporation | Frequency measuring circuit and resonant pressure sensor type differential pressure/pressure transmitter using the frequency measuring unit |
CN1578197A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Clock source frequency shift detecting method |
CN1633060A (en) * | 2003-12-24 | 2005-06-29 | 华为技术有限公司 | A method and apparatus for time clock signal test |
CN101441232A (en) * | 2008-12-25 | 2009-05-27 | 中南大学 | Time base frequency real time calibration frequency measuring method and apparatus |
CN101893658A (en) * | 2009-05-22 | 2010-11-24 | 精工爱普生株式会社 | Frequency measuring equipment |
CN102128981A (en) * | 2010-12-29 | 2011-07-20 | 上海大学 | Method for measuring pulse signal period |
CN102401857A (en) * | 2010-08-31 | 2012-04-04 | 精工爱普生株式会社 | Frequency measurement device and electronic device |
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2012
- 2012-06-08 CN CN201210187825XA patent/CN102680782A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4786861A (en) * | 1987-09-01 | 1988-11-22 | Sundstrand Data Control, Inc. | Frequency counting apparatus and method |
US20040075425A1 (en) * | 2002-10-22 | 2004-04-22 | Yokogawa Electric Corporation | Frequency measuring circuit and resonant pressure sensor type differential pressure/pressure transmitter using the frequency measuring unit |
CN1578197A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Clock source frequency shift detecting method |
CN1633060A (en) * | 2003-12-24 | 2005-06-29 | 华为技术有限公司 | A method and apparatus for time clock signal test |
CN101441232A (en) * | 2008-12-25 | 2009-05-27 | 中南大学 | Time base frequency real time calibration frequency measuring method and apparatus |
CN101893658A (en) * | 2009-05-22 | 2010-11-24 | 精工爱普生株式会社 | Frequency measuring equipment |
CN102401857A (en) * | 2010-08-31 | 2012-04-04 | 精工爱普生株式会社 | Frequency measurement device and electronic device |
CN102128981A (en) * | 2010-12-29 | 2011-07-20 | 上海大学 | Method for measuring pulse signal period |
Non-Patent Citations (2)
Title |
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赏星耀等: "基于同步周期扩展的宽范围等精度快速频率测量方法的研究", 《仪器仪表学报》 * |
鲍芳等: "新型单片机频率测量系统的研究", 《微机与应用》 * |
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Owner name: DONGGUAN BOYONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN XIANGFENG ELECTRONICS TECHNOLOGY INDUSTRIAL CO., LTD. Effective date: 20130326 Free format text: FORMER OWNER: DONGGUAN BOYONG TECHNOLOGY CO., LTD. Effective date: 20130326 |
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Effective date of registration: 20130326 Address after: Industrial Road, Songshan Lake high tech Zone 523000 Guangdong city of Dongguan province No. 6 Songhu Branch Park 2 building 611 room Applicant after: Dongguan Boyong Electronic Technology Co., Ltd. Address before: 523850 Guangdong Province, Dongguan city Changan town Xiagang Zhen'an Technology Park Applicant before: Dongguan Xiangfeng Electronic Technology Industrial Co., Ltd. Applicant before: Dongguan Boyong Electronic Technology Co., Ltd. |
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Application publication date: 20120919 |