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1. 发明公开

EP1731996A2 Writing system 审中-公开
标题翻译： Schreibsystem
公开(公告)号：EP1731996A2
公开(公告)日：2006-12-13
申请号：EP06011357.8
申请日：2006-06-01
申请人： Zhang, Guanglie , Shi, Guangyi , Luo, Yilun , Wong, Heidi Yee Yan , Li, Wen Jung , Leong, Philip Heng Wai , Wong, Ming Yiu
发明人： Zhang, Guanglie , Shi, Guangyi , Luo, Yilun , Wong, Heidi Yee Yan , Li, Wen Jung , Leong, Philip Heng Wai , Wong, Ming Yiu
IPC分类号： G06F3/033
CPC分类号： G06F3/03545
摘要： A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers 27 and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a rate gyro 29 and an accelerometer 27 and communicated to a Bluetooth module 25, possibly to a computer 33 which may be 20 to 30 feet or more from the sensor 21. The motion information generated and communicated is combined with appropriate filtering and transformation algorithms to facilitate a complete Digital Writing System that can be used to record handwriting on any surface, or on no surface at all. The overall size of an IMU can be less than 26 mm x 20 mm x 20 mm, and may include micro sensors, a processor, and wireless interface components. The Kalman filtering algorithm is preferably used to filter the noise of sensors to allow successful transformance of hand motions into recognizable and recordable English characters. The immediate advantage is the facilitation of a digital interface with both PC and mobile computing devices and perhaps to enable wireless sensing.
摘要翻译：开发了基于MEMS加速度计27和陀螺仪传感器的微惯性测量单元（IMU），用于实时识别人体手动运动，特别是在表面上书写的上下文中使用的。运动由速率陀螺仪29和加速度计27记录，并传送到蓝牙模块25，可能传送到计算机33，计算机33可以距离传感器21为20至30英尺或更多。生成和传送的运动信息与适当的滤波和转换算法，以方便一个完整的数字写入系统，可用于在任何表面上或完全无表面记录手写。 IMU的总体尺寸可以小于26mm×20mm×20mm，并且可以包括微传感器，处理器和无线接口部件。卡尔曼滤波算法优选地用于过滤传感器的噪声，以允许成功地将手运动变换成可识别和可记录的英文字符。最直接的优点是促进了PC和移动计算设备的数字接口，并且可能实现无线传感。

2. 发明公开

EP1731996A3 Writing system 审中-公开
标题翻译：书写系统
公开(公告)号：EP1731996A3
公开(公告)日：2007-08-08
申请号：EP06011357.8
申请日：2006-06-01
申请人： Zhang, Guanglie , Shi, Guangyi , Luo, Yilun , Wong, Heidi Yee Yan , Li, Wen Jung , Leong, Philip Heng Wai , Wong, Ming Yiu
发明人： Zhang, Guanglie , Shi, Guangyi , Luo, Yilun , Wong, Heidi Yee Yan , Li, Wen Jung , Leong, Philip Heng Wai , Wong, Ming Yiu
IPC分类号： G06F3/033
CPC分类号： G06F3/03545
摘要： A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers 27 and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a rate gyro 29 and an accelerometer 27 and communicated to a Bluetooth module 25, possibly to a computer 33 which may be 20 to 30 feet or more from the sensor 21. The motion information generated and communicated is combined with appropriate filtering and transformation algorithms to facilitate a complete Digital Writing System that can be used to record handwriting on any surface, or on no surface at all. The overall size of an IMU can be less than 26 mm x 20 mm x 20 mm, and may include micro sensors, a processor, and wireless interface components. The Kalman filtering algorithm is preferably used to filter the noise of sensors to allow successful transformance of hand motions into recognizable and recordable English characters. The immediate advantage is the facilitation of a digital interface with both PC and mobile computing devices and perhaps to enable wireless sensing.

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