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1. 发明授权

US5828295A Mode tracking transducer driver for a non-linear transducer 失效
标题翻译：用于非线性传感器的模式跟踪传感器驱动器
公开(公告)号：US5828295A
公开(公告)日：1998-10-27
申请号：US707543
申请日：1996-09-04
申请人： James Gregory Mittel , John M. McKee , Darrell Curtis Weber
发明人： James Gregory Mittel , John M. McKee , Darrell Curtis Weber
IPC分类号： B06B1/04 , G08B6/00 , H04B3/36 , H04Q1/30
CPC分类号： G08B6/00
摘要： A mode tracking transducer driver (100) for a non-linear electromagnetic transducer (102) includes a voltage controlled oscillator (104) coupled within a phase lock loop to a transducer driver (106) and a mode detector (112, 108). The voltage controlled oscillator (104) generates a variable frequency output signal, and is responsive to a frequency control signal for controlling the frequency of the output signal. The transducer driver (106) generates a transducer drive signal (502) which is coupled to the non-linear electromagnetic transducer (102) to generate a tactile alert. The mode detector (112, 108) detects a mode change between at least the first operating mode and the second operating mode of the non-linear electromagnetic transducer (102), and in response thereto generates the frequency control signal (118) which establishes a quasi-resonant frequency (204) at which the tactile energy delivered by the non-linear electromagnetic transducer (102) is maximized.
摘要翻译：用于非线性电磁换能器（102）的模式跟踪传感器驱动器（100）包括耦合在相位锁定环内的压控振荡器（104）到换能器驱动器（106）和模式检测器（112,108）。压控振荡器（104）产生可变频率输出信号，并响应于控制输出信号频率的频率控制信号。换能器驱动器（106）产生耦合到非线性电磁换能器（102）以产生触觉警报的换能器驱动信号（502）。模式检测器（112,108）检测非线性电磁换能器（102）的至少第一操作模式和第二操作模式之间的模式变化，响应于此产生频率控制信号（118），其建立由非线性电磁换能器（102）传递的触觉能量最大化的准谐振频率（204）。

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