公开(公告)号：AU4077097A

公开(公告)日：1998-03-26

申请号：AU4077097

申请日：1997-08-20

Applicant: MOTOROLA INC

Inventor： MITTEL JAMES GREGORY ,  MCKEE JOHN M ,  WEBER DARRELL CURTIS

IPC: B06B1/04 ,  G08B6/00 ,  H04Q1/00 ,  H04R25/00 ,  G08B5/22

Abstract: 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.

公开(公告)号：HK1022073A1

公开(公告)日：2000-07-21

申请号：HK00100790

申请日：2000-02-11

Applicant: MOTOROLA INC

Inventor： MITTEL JAMES GREGORY ,  MCKEE JOHN M ,  WEBER DARRELL CURTIS

IPC: B06B1/04 ,  G08B6/00 ,  H04Q ,  H04R ,  G08B

Abstract: 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.

公开(公告)号：EP0931421A4

公开(公告)日：2001-06-20

申请号：EP97938450

申请日：1997-08-20

Applicant: MOTOROLA INC

Inventor： MITTEL JAMES GREGORY ,  MCKEE JOHN M ,  WEBER DARRELL CURTIS

IPC: B06B1/04 ,  G08B6/00 ,  H03L7/00

CPC classification number: G08B6/00

Abstract: 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.

Abstract translation: 用于非线性电磁换能器（102）的模式跟踪换能器驱动器（100）包括在锁相环内耦合到换能器驱动器（106）和模式检测器（112,108）的压控振荡器（104）。 压控振荡器（104）产生可变频率输出信号，并且响应于频率控制信号来控制输出信号的频率。 换能器驱动器（106）产生耦合到非线性电磁换能器（102）的换能器驱动信号（502）以生成触觉警报。 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与第二操作模式之间的模式改变，并且响应于此而生成频率控制信号（118），其建立 准共振频率（204），由非线性电磁换能器（102）输送的触觉能量在该准共振频率（204）处被最大化。