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1. 发明授权

US11968602B2 Device, system and method for synchronizing of data from multiple sensors 有权
公开(公告)号：US11968602B2
公开(公告)日：2024-04-23
申请号：US17356180
申请日：2021-06-23
申请人： STMICROELECTRONICS, INC. , STMICROELECTRONICS S.r.l.
发明人： Karimuddin Sayed , Chandandeep Singh Pabla , Lorenzo Bracco , Federico Rizzardini
IPC分类号： H04W4/38 , G01D5/244 , G01D9/00 , H04W4/70
CPC分类号： H04W4/38 , G01D5/24404 , G01D9/005 , H04W4/70
摘要： In an embodiment, a device comprises a memory, which, in operation, stores data samples associated with a plurality of data sensors, and circuitry, coupled to the memory, wherein the circuitry, in operation, generates synchronized output data sets associated with the plurality of data sensors. Generating a synchronized output data set includes: determining a reference sample associated with a sensor of the plurality of sensors; verifying a timing validity of a data sample associated with another sensor of the plurality of sensors; identifying a closest-in-time data sample associated with the another sensor of the plurality of sensors with respect to the reference sample; and generating the synchronized output data set based on interpolation.

2. 发明授权

US08841600B2 Hysteresis-compensating interpolation circuits in optical encoders 有权
标题翻译：光学编码器中的滞后补偿内插电路
公开(公告)号：US08841600B2
公开(公告)日：2014-09-23
申请号：US12916579
申请日：2010-10-31
申请人： Chung Min Thor , Gim Eng Chew , Weng Chong Sam
发明人： Chung Min Thor , Gim Eng Chew , Weng Chong Sam
IPC分类号： G01D5/34 , H01J40/14
CPC分类号： H03M1/203 , G01D5/24404 , G01D5/24476 , G01D5/347 , H03M1/306
摘要： Disclosed are various embodiments of circuitry and methods to compensate for variations in hysteresis associated with the comparators of an interpolation circuit in a single track optical encoder. Such variations in hysteresis may be minimized or eliminated by providing appropriately configured resistor ladder circuits to condition the inputs to the comparators, or by programming or trimming resistors in positive feedback loops of the comparators. The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. Methods of making and using such optical encoders are also disclosed.
摘要翻译：公开了用于补偿与单轨光学编码器中的内插电路的比较器相关联的滞后变化的电路和方法的各种实施例。可以通过提供适当配置的电阻梯形电路来调节比较器的输入，或通过比较器的正反馈回路中的编程或微调电阻来最小化或消除滞后的这种变化。本文公开的单轨光学编码器配置允许提供小封装的非常高分辨率的反射光学编码器。还公开了制造和使用这种光学编码器的方法。

3. 发明申请

US20120104236A1 Hysteresis-Compensating Interpolation Circuits in Optical Encoders 有权
标题翻译：光学编码器中的滞后补偿插值电路
公开(公告)号：US20120104236A1
公开(公告)日：2012-05-03
申请号：US12916579
申请日：2010-10-31
申请人： Chung Min Thor , Gim Eng Chew , Weng Chong Sam
发明人： Chung Min Thor , Gim Eng Chew , Weng Chong Sam
IPC分类号： G01D5/347
CPC分类号： H03M1/203 , G01D5/24404 , G01D5/24476 , G01D5/347 , H03M1/306
摘要： Disclosed are various embodiments of circuitry and methods to compensate for variations in hysteresis associated with the comparators of an interpolation circuit in a single track optical encoder. Such variations in hysteresis may be minimized or eliminated by providing appropriately configured resistor ladder circuits to condition the inputs to the comparators, or by programming or trimming resistors in positive feedback loops of the comparators. The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. Methods of making and using such optical encoders are also disclosed.
摘要翻译：公开了用于补偿与单轨光学编码器中的内插电路的比较器相关联的滞后变化的电路和方法的各种实施例。可以通过提供适当配置的电阻梯形电路来调节比较器的输入，或通过比较器的正反馈回路中的编程或微调电阻来最小化或消除滞后的这种变化。本文公开的单轨光学编码器配置允许提供小封装的非常高分辨率的反射光学编码器。还公开了制造和使用这种光学编码器的方法。

4. 发明授权

US07719224B2 Simulated encoder pulse output system and method 失效
标题翻译：模拟编码器脉冲输出系统及方法
公开(公告)号：US07719224B2
公开(公告)日：2010-05-18
申请号：US11863752
申请日：2007-09-28
申请人： Juntao Quan , Adrian Wirth
发明人： Juntao Quan , Adrian Wirth
IPC分类号： G05B19/29
CPC分类号： G05B19/4141 , B41F13/0045 , G01D5/24404 , G05B2219/37537 , G05B2219/41276 , G05B2219/45187 , G05B2219/50216 , H02P5/56
摘要： The invention includes a system and method for generating simulated encoder outputs in a control system. An output pulse width between reference position inputs is computed, the output pulse width being based upon a difference between an updated reference position input and a previous reference position input, and upon a time interval between the reference position inputs. Next, a plurality of simulated encoder pulses is output between updates of the reference position input based upon the computed output pulse width. The output pulse is thereafter adjusted in a closed loop manner between updates of the reference position input.
摘要翻译：本发明包括用于在控制系统中产生模拟编码器输出的系统和方法。计算参考位置输入之间的输出脉冲宽度，输出脉冲宽度基于更新的参考位置输入和先前的参考位置输入之间的差异，以及基准位置输入之间的时间间隔。接下来，基于所计算的输出脉冲宽度，在参考位置输入的更新之间输出多个模拟编码器脉冲。然后在参考位置输入的更新之间以闭环方式调整输出脉冲。

5. 发明授权

US07714571B2 Method and device for estimating variations of the position of the rotor of an electric motor 有权
标题翻译：用于估计电动机的转子的位置的变化的方法和装置
公开(公告)号：US07714571B2
公开(公告)日：2010-05-11
申请号：US11689736
申请日：2007-03-22
申请人： Francesco Pirozzi , Maurizio Di Meglio , Stefano Baratto
发明人： Francesco Pirozzi , Maurizio Di Meglio , Stefano Baratto
IPC分类号： G01B7/30 , G01P3/42 , G01F15/06
CPC分类号： G01D5/24404 , H02P25/03
摘要： A method estimates variations of position of the rotor of a motor having a plurality of uniformly spaced sensors that generate a position pulse at every rotation by a pre-established angle of the rotor. The method may include generating a first clock signal at a first frequency, generating a second clock signal at a second frequency multiple than the first frequency by a first factor, in each interval between two consecutive position pulses, counting the number of pulses of the first clock signal comprised in the interval, counting the number of pulses of the second clock signal comprised in the interval. The method may also include that each time the number of counted pulses of the second clock reaches the number of pulses of the first clock counted in an interval that precedes the currently considered interval, signaling that the position of the rotor has varied of an angle equal to the ratio between the pre-established angle and the factor.
摘要翻译：一种方法估计具有多个均匀间隔的传感器的电动机的转子位置的变化，该传感器在每个旋转处产生转子预先设定的角度的位置脉冲。该方法可以包括以第一频率产生第一时钟信号，在两个连续的位置脉冲之间的每个间隔中，以比第一频率多一倍的第二频率产生第二频率的第二时钟信号，计数第一包括在间隔中的时钟信号，对包含在间隔中的第二时钟信号的脉冲数进行计数。该方法还可以包括：每当第二时钟的计数脉冲的数量达到在当前考虑的间隔之前的间隔中计数的第一时钟的脉冲数时，表明转子的位置已经改变了等于到预先确定的角度和因子之间的比率。

6. 发明申请

US20090160434A1 INCREMENTAL DISPLACEMENT TRANSDUCER AND METHOD FOR DETERMINING A DISPLACEMENT OF A FIRST OBJECT RELATIVE TO A SECOND OBJECT 有权
公开(公告)号：US20090160434A1
公开(公告)日：2009-06-25
申请号：US12338409
申请日：2008-12-18
申请人： Christian Speckmann , Timo Galm
发明人： Christian Speckmann , Timo Galm
IPC分类号： G01B7/00
CPC分类号： G01D5/2451 , G01D5/20 , G01D5/24404
摘要： The present invention relates to an incremental displacement transducer for determining a displacement of a first object relative to a second object having a scanning unit linked or to be linked with the first object for scanning a spacing or division track linked or to be linked with the second object having first areas and second areas arranged in alternating manner with a period length, the first areas having a first physical property and the second areas a second physical property differing therefrom, and where the scanning unit has a plurality of sensors for scanning the first areas and the second areas on the basis of the first and/or second physical property, and having an evaluation unit linked with the scanning unit for determining the displacement on the basis of measuring signals of the sensors. The incremental displacement transducer is characterized in that the scanning unit has at least four sensors which are mutually spaced from one another over at least one period length of the spacing track, that at least one first signal can be generated from the measuring signals of the sensors in the evaluation unit for determining the displacement, that the first switching signal assumes a first value if the measuring signal of a first selected sensor of a first subgroup of sensors assumes a maximum value within the first subgroup and simultaneously the measuring signal of a second selected sensor of a second subgroup of sensors assumes a maximum value within the second subgroup and/or that the first switching signal assumes a first value if the measuring signal of a third selected sensor of a third subgroup of sensors assumes a maximum value within the third subgroup and simultaneously the measuring signal of a fourth selected sensor of a fourth subgroup of sensors assumes a maximum value within the fourth subgroup, and that the first switching signal otherwise assumes a second value, each subgroup comprising at least two sensors. The invention also relates to a method for determining a displacement of a first object relative to a second object.

7. 发明授权

US07367257B2 Hydraulic cylinder with position encoder 有权
标题翻译：液压缸带位置编码器
公开(公告)号：US07367257B2
公开(公告)日：2008-05-06
申请号：US11205191
申请日：2005-08-17
申请人： George Kadlicko
发明人： George Kadlicko
IPC分类号： F01B31/12
CPC分类号： F15B15/2861 , F15B15/1457 , F15B15/202 , F15B15/2846 , G01D5/147 , G01D5/24404
摘要： An actuator has a position encoder provided by a helical groove formed in the piston rod. The groove is filled with a material of different magnetic characteristics to provide a smooth exterior surface and a varying discernible signal as the rod moves relative to the cylinder. An array of Hall effect sensors is provided around the rod to provide phase shifted signals as the rod moves so that the signal of one sensor may be correlated by the signals of other sensors.
摘要翻译：致动器具有由形成在活塞杆中的螺旋槽提供的位置编码器。凹槽填充有不同磁特性的材料，以在杆相对于气缸移动时提供光滑的外表面和变化的可识别信号。在棒周围设置一系列霍尔效应传感器，以在棒移动时提供相移信号，使得一个传感器的信号可以通过其他传感器的信号相关。

8. 发明授权

US07098653B2 Phase angle determining circuit 失效
公开(公告)号：US07098653B2
公开(公告)日：2006-08-29
申请号：US10314911
申请日：2002-12-09
申请人： Norman Poirier
发明人： Norman Poirier
IPC分类号： G01B7/30
CPC分类号： G01D5/24404
摘要： A phase angle determining circuit for determining a phase angle from a first input signal and a second input signal includes an input circuit configured to receive the first input signal and the second input signal and to provide a third signal, and an output circuit configured to receive the third signal and to provide an output signal representative of the phase angle. The first and second signal may be provided by a transducer. The transducer may be a steering wheel transducer and the phase angle determining system may be utilized in a vehicle system to control a vehicle system based on the phase angle of the steering wheel.

9. 发明授权

US07064538B2 Magnetic sensor digital processing interface for electrical motor application 有权
标题翻译：磁传感器数字处理接口用于电机应用
公开(公告)号：US07064538B2
公开(公告)日：2006-06-20
申请号：US10420592
申请日：2003-04-22
申请人： Juergen Kernhof
发明人： Juergen Kernhof
IPC分类号： G01B7/30
CPC分类号： G01D5/24404
摘要： A system and methods for an interface for magnetic sensors to determine a rotational angle has been achieved. This interface can be used for magnetic sensors providing analog signals of the sine and cosine values of the angle to be determined. Analog signals are being processed in two measurement paths for the sine and cosine signal each until the desired angle is computed by a CORDIC processor. The first stage of the measurement path is the conversion of the sine and cosine signals from analog to digital by 2nd order delta-sigma modulators with an over-sampling ratio. A low-pass decimation filter with sinc3 characteristic performs the digital value computation. The next stage normalizes the digitized sine and cosine values to correct offset and scaling deviations. The CORDIC processor computes the angle by decomposing the desired rotation angle into iterations of pre-defined elementary rotation angles performing the rotation operation by simple shift-and-add operations and the magnitude of the vector using the output from the normalization stages.
摘要翻译：已经实现了用于确定旋转角度的用于磁传感器的接口的系统和方法。该接口可用于提供要确定的角度的正弦和余弦值的模拟信号的磁传感器。模拟信号正在正弦和余弦信号的两个测量路径中进行处理，直到所需角度由CORDIC处理器计算。测量路径的第一阶段是通过具有过采样比的2 nd / nd阶阶Δ-Σ调制器将正弦和余弦信号从模拟转换成数字。具有sinc <3>特性的低通抽取滤波器执行数字值计算。下一阶段将数字化正弦和余弦值归一化，以校正偏移和缩放偏差。 CORDIC处理器通过将期望的旋转角度分解为通过简单的移位和加法运算执行旋转运算的预定基本旋转角度的迭代以及使用归一化阶段的输出的向量的幅度来计算角度。

10. 发明授权

US06992480B2 Combined incremental and linear magnetic sensor 失效
标题翻译：组合增量和线性磁传感器
公开(公告)号：US06992480B2
公开(公告)日：2006-01-31
申请号：US10682474
申请日：2003-10-09
申请人： Thaddeus Schroeder , Bruno P. B. Lequesne , Avoki M. Omekanda , Thomas Wolfgang Nehl , Rassem Ragheb Henry
发明人： Thaddeus Schroeder , Bruno P. B. Lequesne , Avoki M. Omekanda , Thomas Wolfgang Nehl , Rassem Ragheb Henry
IPC分类号： G01B7/14
CPC分类号： G01D5/24404
摘要： A magnetic sensor provides an output voltage range having first and second linear slopes. Proper selection of magnetic sensor dimensions enables changes in magnetic flux density upon the passage of at least one tooth and one slot of a target wheel past the magnetic sensor to be represented as a linear magnetic sensor output comprised of at least one linear range whereby linear interpolation of position is possible with appropriate signal processing algorithms.
摘要翻译：磁传感器提供具有第一和第二线性斜率的输出电压范围。正确选择磁传感器尺寸使得能够在目标轮的至少一个齿和一个槽通过磁性传感器通过之后磁通密度的变化被表示为包括至少一个线性范围的线性磁传感器输出，从而线性插值的位置是可能的与适当的信号处理算法。

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