CN104243723B - 访客对讲系统音频信号非线性失真检测方法 - Google Patents
访客对讲系统音频信号非线性失真检测方法 Download PDFInfo
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CN109362016B (zh) * | 2018-09-18 | 2021-05-28 | 北京小鸟听听科技有限公司 | 音频播放设备及其测试方法和测试装置 |
CN112448779B (zh) * | 2019-08-29 | 2023-01-03 | 青岛海信移动通信技术股份有限公司 | 一种智能终端设备及其进行对讲通信的方法 |
CN114071343B (zh) * | 2021-11-15 | 2024-06-07 | 苏州华兴源创科技股份有限公司 | 音频设备的测试方法、测试装置及计算机设备 |
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CN201226579Y (zh) * | 2008-07-08 | 2009-04-22 | 公安部第三研究所 | 楼寓对讲系统电声传输测试仪 |
CN101754051A (zh) * | 2008-12-03 | 2010-06-23 | 公安部第三研究所 | 一种楼寓对讲系统的失真测试方法 |
CN203086467U (zh) * | 2012-12-29 | 2013-07-24 | 福建省冠林科技有限公司 | 四线系统室内机摘机检测电路 |
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CN201226579Y (zh) * | 2008-07-08 | 2009-04-22 | 公安部第三研究所 | 楼寓对讲系统电声传输测试仪 |
CN101754051A (zh) * | 2008-12-03 | 2010-06-23 | 公安部第三研究所 | 一种楼寓对讲系统的失真测试方法 |
CN203086467U (zh) * | 2012-12-29 | 2013-07-24 | 福建省冠林科技有限公司 | 四线系统室内机摘机检测电路 |
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Inventor after: Zhao Qiang Inventor after: Yan Yuming Inventor after: Zhang Pengfei Inventor after: Li Yang Inventor after: Tian Liang Inventor after: Zhao Tingting Inventor after: Jiang Yan Inventor before: Zhao Qiang Inventor before: Yan Yuming Inventor before: Zhang Pengfei Inventor before: Li Yang Inventor before: Tian Liang Inventor before: Zhao Tingting Inventor before: Jiang Yan |
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Address after: 110005 Heping 88 South Avenue, Heping District, Liaoning, Shenyang Patentee after: Liaoning Construction Science Research Institute Co Ltd Address before: 110005 Shenyang, Heping, Liaoning, South Street, No. 88 Patentee before: Architectural Science Research Inst., Liaoning Prov. |