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1. 发明授权

US07834310B2 Position encoder's signal processing method and system 有权
标题翻译：编码器的信号处理方法和系统
公开(公告)号：US07834310B2
公开(公告)日：2010-11-16
申请号：US12144069
申请日：2008-06-23
申请人： Michael Eugene Jones , David Douglas Martenson
发明人： Michael Eugene Jones , David Douglas Martenson
IPC分类号： G01J9/00
CPC分类号： G01D5/3473 , G01D5/2451 , G01D5/2457
摘要： An encoder position signal processing system comprises an analog encoder reader and a codewheel. The codewheel possesses an optical track that modulates the quadrature encoder signal amplitude in order to generate an amplitude change (home pulse) once per revolution of the codewheel. The analog encoder reader outputs a quadrature signal comprised of sine and cosine signals. The quadrature signal is converted to a magnitude signal that is sampled in order to generate a rate of change (ROC) signal, which increases the signal-to-noise ratio. An algorithm using the characteristic shape of the ROC home pulse signal can then be applied to the ROC signal to increases robustness of detecting the home pulse.
摘要翻译：编码器位置信号处理系统包括模拟编码器读取器和码字。该码盘具有调制正交编码器信号幅度的光轨，以便每转一圈的码字产生振幅变化（本地脉冲）。模拟编码器读取器输出由正弦和余弦信号组成的正交信号。正交信号被转换为采样的幅度信号，以产生变化率（ROC）信号，这增加了信噪比。然后可以将使用ROC归属脉冲信号的特征形状的算法应用于ROC信号，以增加检测归位脉冲的鲁棒性。

2. 发明申请

US20090314930A1 ENCODER HOME POSITION SIGNAL PROCESSING METHOD AND SYSTEM 有权
标题翻译：编码器家庭位置信号处理方法和系统
公开(公告)号：US20090314930A1
公开(公告)日：2009-12-24
申请号：US12144069
申请日：2008-06-23
申请人： Michael Eugene Jones , David Douglas Martenson
发明人： Michael Eugene Jones , David Douglas Martenson
IPC分类号： G01D5/34
CPC分类号： G01D5/3473 , G01D5/2451 , G01D5/2457
摘要： An encoder position signal processing system comprises an analog encoder reader and a codewheel. The codewheel possesses an optical track that modulates the quadrature encoder signal amplitude in order to generate an amplitude change (home pulse) once per revolution of the codewheel. The analog encoder reader outputs a quadrature signal comprised of sine and cosine signals. The quadrature signal is converted to a magnitude signal that is sampled in order to generate a rate of change (ROC) signal, which increases the signal-to-noise ratio. An algorithm using the characteristic shape of the ROC home pulse signal can then be applied to the ROC signal to increases robustness of detecting the home pulse.
摘要翻译：编码器位置信号处理系统包括模拟编码器读取器和码盘。该码盘具有调制正交编码器信号幅度的光轨，以便每转一圈的码字产生振幅变化（本地脉冲）。模拟编码器读取器输出由正弦和余弦信号组成的正交信号。正交信号被转换为采样的幅度信号，以产生变化率（ROC）信号，这增加了信噪比。然后可以将使用ROC归属脉冲信号的特征形状的算法应用于ROC信号，以增加检测归位脉冲的鲁棒性。

3. 发明申请

US20090321520A1 ENCODER HOME POSITION SENSING METHOD AND SYSTEM 有权
标题翻译：编码器家庭位置感测方法和系统
公开(公告)号：US20090321520A1
公开(公告)日：2009-12-31
申请号：US12145877
申请日：2008-06-25
申请人： David Douglas Martenson , David L. Knierim
发明人： David Douglas Martenson , David L. Knierim
IPC分类号： G06K7/10
CPC分类号： G01D5/3473 , G01D5/24409 , G01D5/34746 , G01D5/366
摘要： An encoder home position sensing system and method is disclosed, which includes the use of an analog quadrature encoder reader and either a code wheel or a code strip. The code wheel possesses an optical track comprised of annular ring patterns, the thickness of which can be modulated by a sinusoidal function about the code wheel circumference, with one cycle of a sine wave corresponding to one encoder cycle. In one region of the optical track the amplitude of the sine function is changed to imbed an absolute reference home position. This region of the optical track can be sensed and used to determine an absolute system position. The linear code strip is similarly constructed with lines along the direction of motion, the thickness of which are modulated with a sine function, with one cycle of the sine wave corresponding to one encoder cycle, and the amplitude of the sine wave function changed to imbed an absolute reference home position in the optical track.
摘要翻译：公开了一种编码器原位感测系统和方法，其包括使用模拟正交编码器读取器和码轮或代码条。码盘具有由环形环图形组成的光学轨迹，其环形环的厚度可通过关于码盘圆周的正弦函数进行调制，正弦波的一个周期对应于一个编码器周期。在光学轨迹的一个区域中，正弦函数的幅度被改变以嵌入绝对参考初始位置。光轨的该区域可被感测并用于确定绝对系统位置。线性码条类似地沿着运动方向的线构成，其厚度用正弦函数调制，正弦波的一个周期对应于一个编码器周期，正弦波函数的幅度变为嵌入光轨中的绝对参考原位。

4. 发明授权

US07934657B2 Encoder home position sensing method and system 有权
标题翻译：编码器原位感测方法及系统
公开(公告)号：US07934657B2
公开(公告)日：2011-05-03
申请号：US12145877
申请日：2008-06-25
申请人： David Douglas Martenson , David L. Knierim
发明人： David Douglas Martenson , David L. Knierim
IPC分类号： G02B26/10 , G06K7/10 , G06K9/22 , G06K19/06
CPC分类号： G01D5/3473 , G01D5/24409 , G01D5/34746 , G01D5/366
摘要： An encoder home position sensing system and method is disclosed, which includes the use of an analog quadrature encoder reader and either a code wheel or a code strip. The code wheel possesses an optical track comprised of annular ring patterns, the thickness of which can be modulated by a sinusoidal function about the code wheel circumference, with one cycle of a sine wave corresponding to one encoder cycle. In one region of the optical track the amplitude of the sine function is changed to imbed an absolute reference home position. This region of the optical track can be sensed and used to determine an absolute system position. The linear code strip is similarly constructed with lines along the direction of motion, the thickness of which are modulated with a sine function, with one cycle of the sine wave corresponding to one encoder cycle, and the amplitude of the sine wave function changed to imbed an absolute reference home position in the optical track.
摘要翻译：公开了一种编码器原位感测系统和方法，其包括使用模拟正交编码器读取器和码轮或代码条。码盘具有由环形环图形组成的光学轨迹，其环形环的厚度可通过关于码盘圆周的正弦函数进行调制，正弦波的一个周期对应于一个编码器周期。在光学轨迹的一个区域中，正弦函数的幅度被改变以嵌入绝对参考初始位置。可以感测光轨的该区域并用于确定绝对系统位置。线性码条类似地沿着运动方向的线构成，其厚度用正弦函数调制，正弦波的一个周期对应于一个编码器周期，正弦波函数的幅度变为嵌入光轨中的绝对参考原位。

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