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1. 发明授权

US06937954B2 Signal processor for use in electronic compass 失效
标题翻译：信号处理器用于电子罗盘
公开(公告)号：US06937954B2
公开(公告)日：2005-08-30
申请号：US10660608
申请日：2003-09-12
申请人： Ha Woong Jeong , Won Tae Choi , Han Chul Jo , Jin Yong Kang , Chang Hyun Kim , Oh Jo Kwon
发明人： Ha Woong Jeong , Won Tae Choi , Han Chul Jo , Jin Yong Kang , Chang Hyun Kim , Oh Jo Kwon
IPC分类号： G01C17/28 , G01C17/00 , G01C17/32 , G01C17/38 , G01P21/00 , G01R15/00 , G01S17/00 , H03M1/10 , H03M1/12 , G06F19/00
CPC分类号： G01C17/00 , G01C17/38
摘要： In a signal processor for use in an electronic compass for controlling an offset voltage generated in an analog signal process and automatically controlling an amplification gain, an analog signal processor 52 amplifies signals Sx and Sy, and controls an offset voltage and amplitude A generated during an amplification process. An analog/digital (AD) converter 53 converts analog signals Vadcx and Vadcy from the analog signal processor 52 into a digital signal. A digital signal processor 54 measures a maximum value Vadc—max and a minimum value Vadc—min associated with the digital signal from the AD converter 53, and outputs, to the analog signal processor 52, an offset control signal Soc and a gain control signal Sgc based on the maximum value Vadc—max and minimum value Vadc—min. The signal processor can maintain levels of signals, to be inputted into the AD converter, to be within a reference voltage range.
摘要翻译：在用于控制在模拟信号处理中产生的偏移电压并自动控制放大增益的电子罗盘中的信号处理器中，模拟信号处理器52放大信号Sx和Sy，并且控制信号Sx和Sy产生的偏移电压和振幅A 放大过程。模拟/数字（AD）转换器53将模拟信号Vadcx和Vadcy从模拟信号处理器52转换为数字信号。数字信号处理器54测量最大值V SUB和最小值V adc最小值与AD转换器53的数字信号相关联的 - 分钟，并向模拟信号处理器52输出偏移控制信号Soc和增益控制信号Sgc，并且基于最大值V max和/或最小值V 。信号处理器可以将输入到AD转换器的信号电平保持在参考电压范围内。

2. 发明授权

US06871411B1 Automatic calibration method for use in electronic compass 失效
标题翻译：自动校准方法用于电子罗盘
公开(公告)号：US06871411B1
公开(公告)日：2005-03-29
申请号：US10757497
申请日：2004-01-15
申请人： Jin Yong Kang , Won Tae Choi , Chang Hyun Kim , Ha Woong Jeong , Han Chul Jo , Oh Jo Kwon
发明人： Jin Yong Kang , Won Tae Choi , Chang Hyun Kim , Ha Woong Jeong , Han Chul Jo , Oh Jo Kwon
IPC分类号： G01C17/32 , G01C17/38
CPC分类号： G01C17/38
摘要： An automatic calibration method for use in an electronic compass. Using the automatic calibration method, the electronic compass automatically calculates and corrects offset and scale values of a geomagnetic signal by detecting one rotation of a geomagnetic axis during a predetermined period of time. The electronic compass calculates an azimuth angle upon receiving geomagnetic data from the geomagnetic sensor, and finds maximum and minimum values of sensor signals of individual axes of the geomagnetic sensor using the received geomagnetic data such that it can correct or calibrate deviation of the azimuth angle. When a time consumed for calibration is the same or shorter than a maximum calibration effective time, the electronic compass determines whether a current state of the detected entry signal indicates a predetermined steady-state flow. If the current state indicates the steady-state flow, at the same time a signal indicative of one rotation of the geomagnetic sensor is received, and the time consumed for calibration is longer than a predetermined minimum calibration effective time, the electronic compass calculates offset and scale values using the maximum and minimum values and stores the calculated offset and scale values.
摘要翻译：一种用于电子罗盘的自动校准方法。使用自动校准方法，电子罗盘通过在预定时间段内检测地磁轴的一次旋转，自动计算和校正地磁信号的偏移和比例值。电子罗盘在从地磁传感器接收地磁数据时计算方位角，并使用接收到的地磁数据找出地磁传感器各个轴的传感器信号的最大值和最小值，使其可以校正或校准方位角的偏差。当校准消耗的时间与最大校准有效时间相同或更短时，电子罗盘确定检测到的进入信号的当前状态是否表示预定的稳态流。如果当前状态指示稳态流，则同时接收到表示地磁传感器一次旋转的信号，并且校准消耗的时间长于预定的最小校准有效时间，电子罗盘计算偏移和使用最大值和最小值进行比例值，并存储计算的偏移量和比例值。

3. 发明授权

US06957156B2 Method for searching for dip angle using tilt-compensated electronic compass 失效
标题翻译：使用倾斜补偿电子罗盘搜索倾角的方法
公开(公告)号：US06957156B2
公开(公告)日：2005-10-18
申请号：US10770503
申请日：2004-02-04
申请人： Han Chul Jo , Won Tae Choi , Chang Hyun Kim , Jin Yong Kang , Oh Jo Kwon , Ha Woong Jeong
发明人： Han Chul Jo , Won Tae Choi , Chang Hyun Kim , Jin Yong Kang , Oh Jo Kwon , Ha Woong Jeong
IPC分类号： G01C17/32 , G01C17/38 , G01F17/00
CPC分类号： G01C17/38
摘要： A method of finding a dip angle in a tilt-compensated electronic compass includes the steps of a) setting a predetermined azimuth angle indicative of a horizontal status of a geomagnetic sensor to a reference azimuth angle; b) if the compass is slightly tilted, stepwise-increasing a dip angle within a predetermined dip angle search range, and calculating azimuth angles associated with individual dip angles; c) comparing the calculated azimuth angles with the reference azimuth angle, and finding one azimuth angle, which is closest to the reference azimuth angle, among the calculated azimuth angles; and d) setting the dip angle applied to the closest azimuth angle to a specific dip angle associated with a corresponding azimuth angle, such that a more accurate azimuth angle can be detected by the on the basis of the calculated dip angle.
摘要翻译：在倾斜补偿电子罗盘中找到倾角的方法包括以下步骤：a）将指示地磁传感器的水平状态的预定方位角设置为参考方位角; b）如果指南针稍微倾斜，在预定倾角搜索范围内逐步增加倾角，并计算与各个倾角相关的方位角; c）将所计算的方位角与参考方位角进行比较，并找出最接近参考方位角的方位角之间的计算方位角; 以及d）将施加到最接近的方位角的倾角设置为与对应的方位角相关联的特定倾角，使得可以通过基于所计算的倾角来检测更准确的方位角。

4. 发明授权

US07305315B2 Method of compensating tilt using two-axis geomagnetic sensor, and acceleration sensor, and apparatus thereof 有权
标题翻译：使用二轴地磁传感器补偿倾斜的方法，以及加速度传感器及其装置
公开(公告)号：US07305315B2
公开(公告)日：2007-12-04
申请号：US11300341
申请日：2005-12-15
申请人： Oh Jo Kwon , Won Tae Choi , Chang Hyun Kim
发明人： Oh Jo Kwon , Won Tae Choi , Chang Hyun Kim
IPC分类号： G01C17/38 , G01F17/00
CPC分类号： G01C17/38
摘要： The present general inventive concept relates to a method of compensating tilt using a two-axis geomagnetic sensor and an acceleration sensor and an apparatus. Using the principle where a geomagnetic field value measured in a state where one axis of the two-axis geomagnetic sensor is set up vertically is identical to a Z-axis geomagnetic field value, the Z-axis geomagnetic field value can be evaluated by using two axes of the two-axis geomagnetic sensor. Accordingly, an azimuth angle can be easily calculated, so that the azimuth angle changed by tilt can be compensated. Therefore, there is an effect that a constant azimuth can be always output even though tilt occurs. In addition, when a module of the two-axis geomagnetic sensor and the acceleration sensor is used in a mobile equipment, the two-axis geomagnetic sensor can automatically measure geomagnetic field values of three axes by a simple motion where a user vertically sets up or rotates up and down the mobile equipment. Therefore, there is an effect that a constant azimuth angle can be always output by compensating the azimuth angle changed by tilt.
摘要翻译：本发明总体构思涉及使用两轴地磁传感器和加速度传感器以及装置来补偿倾斜的方法。使用在两轴地磁传感器的一个轴垂直设置的状态下测量的地磁场值与Z轴地磁场值相同的原理，Z轴地磁场值可以通过使用两个双轴地磁传感器的轴。因此，可以容易地计算方位角，从而可以补偿由倾斜变化的方位角。因此，存在即使发生倾斜也能够始终输出恒定方位角的效果。另外，当在移动设备中使用双轴地磁传感器和加速度传感器的模块时，双轴地磁传感器可以通过简单的运动自动测量三轴的地磁场值，用户垂直设置或在移动设备上上下旋转。因此，通过补偿由倾斜变化的方位角，可以总是输出恒定方位角的效果。

5. 发明申请

US20080052931A1 Hybrid sensor module and sensing method using the same 有权
标题翻译：混合传感器模块和感测方法使用相同
公开(公告)号：US20080052931A1
公开(公告)日：2008-03-06
申请号：US11896908
申请日：2007-09-06
申请人： Oh Jo Kwon , Won Tae Choi , Kyoung Soo Kwon
发明人： Oh Jo Kwon , Won Tae Choi , Kyoung Soo Kwon
IPC分类号： G01C17/00
CPC分类号： G01C17/28 , G01P1/023 , G01P15/18 , H05K1/18 , H05K2201/10151 , H05K2201/10484
摘要： Provided is a hybrid sensor module including first and second sensors that are attached on one surface of a printed circuit board (PCB) so as to detect two-axis signal components parallel to the PCB; a third sensor that is attached on one surface of the PCB such that the axial direction of the third sensor is tilted at a predetermined angle from a vertical direction of the PCB, the third sensor detecting a signal component sensed in the axial direction; and a signal correction unit that is connected to the first to third sensor and corrects signal components, detected from the respective sensors, into signal components of an orthogonal coordinate system.
摘要翻译：提供了一种混合传感器模块，其包括附接在印刷电路板（PCB）的一个表面上的第一和第二传感器，以便检测平行于PCB的两轴信号分量; 第三传感器，其附接在PCB的一个表面上，使得第三传感器的轴向方向从PCB的垂直方向倾斜预定角度，第三传感器检测沿轴向感测的信号分量; 以及信号校正单元，其连接到第一至第三传感器，并且将从各个传感器检测的信号分量校正为正交坐标系的信号分量。

6. 发明授权

US07870678B2 Hybrid sensor module and sensing method using the same 有权
标题翻译：混合传感器模块和感测方法使用相同
公开(公告)号：US07870678B2
公开(公告)日：2011-01-18
申请号：US11896908
申请日：2007-09-06
申请人： Oh Jo Kwon , Won Tae Choi , Kyoung Soo Kwon
发明人： Oh Jo Kwon , Won Tae Choi , Kyoung Soo Kwon
IPC分类号： G01C17/00
CPC分类号： G01C17/28 , G01P1/023 , G01P15/18 , H05K1/18 , H05K2201/10151 , H05K2201/10484
摘要： Provided is a hybrid sensor module including first and second sensors that are attached on one surface of a printed circuit board (PCB) so as to detect two-axis signal components parallel to the PCB; a third sensor that is attached on one surface of the PCB such that the axial direction of the third sensor is tilted at a predetermined angle from a vertical direction of the PCB, the third sensor detecting a signal component sensed in the axial direction; and a signal correction unit that is connected to the first to third sensor and corrects signal components, detected from the respective sensors, into signal components of an orthogonal coordinate system.
摘要翻译：提供了一种混合传感器模块，其包括附接在印刷电路板（PCB）的一个表面上的第一和第二传感器，以便检测平行于PCB的两轴信号分量; 第三传感器，其附接在PCB的一个表面上，使得第三传感器的轴向方向从PCB的垂直方向倾斜预定角度，第三传感器检测沿轴向感测的信号分量; 以及信号校正单元，其连接到第一至第三传感器，并且将从各个传感器检测的信号分量校正为正交坐标系的信号分量。

7. 发明申请

US20110308159A1 Apparatus for detecting coordinates, and display device, security device, and electronic blackboard including the same 审中-公开
标题翻译：用于检测坐标的装置，显示装置，安全装置和包括其的电子黑板
公开(公告)号：US20110308159A1
公开(公告)日：2011-12-22
申请号：US13067678
申请日：2011-06-20
申请人： Jae Kwang Lee , Victor Yurlov , Won Tae Choi , Hyun Jun Kim , Jin Yong Kang
发明人： Jae Kwang Lee , Victor Yurlov , Won Tae Choi , Hyun Jun Kim , Jin Yong Kang
IPC分类号： E05F15/20 , G06F3/042
CPC分类号： G06F3/0423
摘要： There are provided an apparatus for detecting coordinates, which may detect coordinates corresponding to an event occurring within a region of interest, and a display device, a security device, and an electronic blackboard, each including the same. The apparatus for detecting coordinates, which is provided in at least one side of a touch panel having a preset region of interest being surrounded by a frame having a predetermined length, the apparatus comprising: a light source body providing preset light; a scanner emitting the light provided from the light source body at a preset angle to scan the region of interest, and receiving light reflected by the region of interest; a photo diode receiving reflected light to convert the received reflected light to a voltage value; and a beam splitter transmitting the light provided from the light source body to the scanner via a first path, and transmitting, to the photo diode via a second path, the reflected light received from the scanner.
摘要翻译：提供了一种用于检测坐标的装置，其可以检测对应于感兴趣区域内发生的事件的坐标，以及包括该坐标的显示装置，安全装置和电子黑板。用于检测坐标的装置，其设置在具有预定感兴趣区域的触摸面板的至少一侧，被具有预定长度的框架包围，所述装置包括：提供预设光的光源体; 扫描器，其以预定角度发射从光源主体提供的光，以扫描感兴趣区域，以及接收由感兴趣区域反射的光; 接收反射光的光电二极管将所接收的反射光转换为电压值; 以及分束器，其经由第一路径将从光源主体提供的光发送到扫描仪，并且经由第二路径将从扫描器接收的反射光发送到光电二极管。

8. 发明授权

US08693777B2 Apparatus and method for estimating edge areas of digital image 失效
标题翻译：用于估计数字图像边缘区域的装置和方法
公开(公告)号：US08693777B2
公开(公告)日：2014-04-08
申请号：US13091227
申请日：2011-04-21
申请人： Joo Young Ha , Won Tae Choi , Byung Hyun Kim , Bong Soon Kang , Won Woo Jang , Kyung Rin Kim , Jung Joo Yang , Gi Dong Lee , Kang Joo Kim
发明人： Joo Young Ha , Won Tae Choi , Byung Hyun Kim , Bong Soon Kang , Won Woo Jang , Kyung Rin Kim , Jung Joo Yang , Gi Dong Lee , Kang Joo Kim
IPC分类号： G06K9/00
CPC分类号： H04N1/4092 , G06T7/13 , G06T7/143
摘要： There are provided an apparatus and a method for estimating edge areas of pixels in a digital image to thereby prevent an edge sharpening algorithm from being applied to non-edge area of the digital image. Therefore, the apparatus can accurately determine whether each pixel is in an edge area or in a non-edge area, by generating a binary mask obtained by using a luminance difference average between each pixel and each of neighboring pixels in the digital image. Moreover, the determination of an edge-area or a non-edge area may be applied to various digital images, by adjusting a level of edge-area determination.
摘要翻译：提供了一种用于估计数字图像中的像素的边缘区域的装置和方法，从而防止边缘锐化算法被应用于数字图像的非边缘区域。因此，通过生成通过使用数字图像中的每个像素和每个相邻像素之间的亮度差平均而获得的二进制掩码，该装置可以准确地确定每个像素是在边缘区域还是在非边缘区域。此外，可以通过调整边缘区域确定的水平来将边缘区域或非边缘区域的确定应用于各种数字图像。

9. 发明申请

US20110190632A1 ULTRASONIC DIAGNOSTIC APPRATUS AND ULTRASONIC IMAGE PROCESSING METHOD 有权
标题翻译：超声诊断设备和超声图像处理方法
公开(公告)号：US20110190632A1
公开(公告)日：2011-08-04
申请号：US12753724
申请日：2010-04-02
申请人： Gyu Won KIM , Won Tae Choi , Kyoung Joong Min
发明人： Gyu Won KIM , Won Tae Choi , Kyoung Joong Min
IPC分类号： A61B8/14
CPC分类号： A61B8/14
摘要： Disclosed herein is an ultrasonic diagnostic apparatus and ultrasonic image processing method. The ultrasonic diagnostic apparatus includes an ultrasonic transmission unit; An ultrasonic probe emits; An ultrasonic reception unit; An image processing unit; A sound velocity determination unit; and A control unit. Accordingly, there is an advantage in that the actual sound velocity of a reflected wave is estimated, so that high-quality ultrasonic images can be provided, and the time required for the estimation of a sound velocity can be reduced.
摘要翻译：这里公开了超声波诊断装置和超声波图像处理方法。超声波诊断装置包括：超声波发送部; 超声波探头发射; 超声波接收单元; 图像处理单元; 音速确定单元; 和A控制单元。因此，有一个优点是估计反射波的实际声速，从而可以提供高品质的超声波图像，并且可以减少估计声速所需的时间。

10. 发明授权

US07565121B2 Clock noise canceling circuit 失效
标题翻译：时钟噪声消除电路
公开(公告)号：US07565121B2
公开(公告)日：2009-07-21
申请号：US11566587
申请日：2006-12-04
申请人： Joo Yul Ko , Hak Sun Kim , Won Tae Choi , Won Wook So
发明人： Joo Yul Ko , Hak Sun Kim , Won Tae Choi , Won Wook So
IPC分类号： H04B7/08
CPC分类号： H03G5/005 , H04N1/00307
摘要： In a clock noise canceling circuit, a coupler extracts a signal from a clock signal. A filter selects a harmonic component of a preset frequency in the extraction signal from the coupler. A phase shifter phase inverts the harmonic component of the preset frequency from the filter. An AGC amplifier amplifies the phase-inverted harmonic component from the phase shifter. Also, a combiner combines the amplified component from the phase shifter with the clock signal to eliminate the harmonic component of the preset frequency from the clock signal. A power detector detects a power level of the harmonic component of the preset frequency in an output signal of the combiner. Additionally, a controller controls gain of the automatic gain control amplifier based on the power level of the harmonic component detected by the power detector, thereby canceling noises.
摘要翻译：在时钟噪声消除电路中，耦合器从时钟信号中提取信号。滤波器在来自耦合器的提取信号中选择预设频率的谐波分量。移相器相位从滤波器反转预设频率的谐波分量。 AGC放大器放大来自移相器的相位反相谐波分量。此外，组合器将来自移相器的放大组件与时钟信号相结合，以从时钟信号中消除预设频率的谐波分量。功率检测器在组合器的输出信号中检测预设频率的谐波分量的功率电平。此外，控制器基于由功率检测器检测到的谐波分量的功率电平来控制自动增益控制放大器的增益，从而消除噪声。

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