公开(公告)号：US11143525B1

公开(公告)日：2021-10-12

申请号：US17170038

申请日：2021-02-08

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： G01D5/20 ,  H02K1/14 ,  H02K11/21

摘要： A novel multi-phase resolver topology and apparatus is provided for measuring a displacement of movement body more precisely and economically. In variable reluctance (VR) resolvers, N coil-poles are placed at N equally spaced positions over one turn of the stator, N being an odd number greater than or equal to 5. Each coil serves both as an excitation and a sensing coil, and all N coils are wound with the same number of turns at an identical electrical polarity. Depending on the installed rotor lobe shape, N sinusoidal or quasi-square waveform displacement signals are sensed on multi-phase resolver, and from which two-phase orthogonal displacement signals are optimally and differentially synthesized. The multi-phase resolver topology and differential synthesis method is also applied to other types of resolvers, such as wound-rotor, inductance, capacitive, and magnetic resolvers.

公开(公告)号：US20120194177A1

公开(公告)日：2012-08-02

申请号：US13442613

申请日：2012-04-09

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： G01B7/30

CPC分类号： G01D3/032

摘要： A multi-pole variable reluctance resolver is balanced wired and driven by 180 degree differential signals. Capacitive passive elements may be serially added to the resolver to minimize magnetic interference and cancel flux between poles of the same polarity and orthogonal poles, as well as minimize the effect of input driving signal distortion. Symmetric networks of resistive and capacitive elements may also be added to the resolver to overcome noise sensitivity associated with balanced wired resolvers.

摘要翻译： 多极可变磁阻解调器由180度差分信号进行平衡连接和驱动。 可以将电容性无源元件串行地添加到旋转变压器中以最小化磁干扰并消除相同极性和正交极点的极点之间的通量，以及最小化输入驱动信号失真的影响。 电阻和电容元件的对称网络也可以添加到旋转变压器，以克服与平衡有线分解器相关的噪声敏感度。

公开(公告)号：US20240121142A1

公开(公告)日：2024-04-11

申请号：US17963604

申请日：2022-10-11

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： H04L27/233 ,  H04L27/36

CPC分类号： H04L27/2334 ,  H04L27/364

摘要： An N-phase vector synthesis demodulator employing N number of mixers is presented. The received signal is mixed with locally generated N number of phase-shifted carrier signals at the N mixers, the individual phases of which are successively and equally 360°/N shifted. The final in-phase (I) and quadrature-phase (Q) signals are zero-force synthesized from the demodulated N-phase vector signals. Compared with the conventional I/Q demodulator that obtains the I and Q signals directly from two mixers of 0° and 90° carrier signal phases, the multi-phase demodulator provides significantly high linearities in the demodulated I and Q signals as the zero-force synthesizer performs an optimal combining of the N-phase demodulated signals while minimizing distortions, interferences, and noise.

公开(公告)号：US11709268B1

公开(公告)日：2023-07-25

申请号：US17994756

申请日：2022-11-28

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： G01C3/08 ,  G01S17/36 ,  G01S7/4913 ,  G01S7/4915

CPC分类号： G01S17/36 ,  G01S7/4913 ,  G01S7/4915

摘要： In N-phase correlations vector synthesis time-of-flight (ToF) ranging employing N correlators, the correlation time at each signal cycle is reduced to mitigate pixel saturation by sun light or strong reflected light as well as to minimize the influence of external noise. Typically, the correlation time, during which the received signal is correlated with the transmitting signal, is set to be one full cycle in each transmitting signal period. In this invention, reducing the correlation time to





1
N

,

1

2
⁢
N


,


or
⁢


1

k
⁢
N







of a full cycle period in each transmitting signal period is disclosed, where k is a real number greater than 1, but k is not 2. Depending on the intensity of the ambient light, the correlation time is flexibly and optimally selected. Multiple fractional correlations produced by a reduced correlation time are integrated over multiple signal periods to obtain more reliable signals of the correlation vectors.

公开(公告)号：US20210356299A1

公开(公告)日：2021-11-18

申请号：US16766275

申请日：2019-09-16

申请人： CHUN SOO PARK

发明人： CHUN SOO PARK

IPC分类号： G01D5/244 ,  G01D5/14

摘要： In an absolute encoder, a system of linear equations is built based on the mathematical analysis that each phase-delayed displacement signal from a plurality of position sensors placed at certain electrical phase angle positions in a 360° electrical cycle contains a component of its two orthogonal displacement signals, sin(θ) and cos(θ). The two orthogonal displacement signals are optimally obtained by solving the system of linear equations based on the principle that the sum of all other tap's signals other than own tap's signal is forced to be zero at each tap, which is essentially applying the zero-force (ZF) equalization to the phase-delayed sinusoidal or square wave displacement signals of position sensors. By applying the ZF equalization to distortion-prone raw signals of a plurality of position sensors, signal components, other than the two orthogonal displacement signals, are eliminated and distortion-minimized optimal two orthogonal displacement signals are synthesized.

公开(公告)号：US07599723B2

公开(公告)日：2009-10-06

申请号：US10569516

申请日：2004-08-25

申请人： Jun-Hong Lee ,  Jae-Young Park ,  Chun-Soo Park

发明人： Jun-Hong Lee ,  Jae-Young Park ,  Chun-Soo Park

IPC分类号： H04M1/00

CPC分类号： H04M1/0237 ,  H04M1/0227 ,  H04M1/0233 ,  H04M1/0247

摘要： Disclosed are a sliding opening and closing device and a portable terminal having the same. According to the first embodiment of the present invention, a slide plate is linked to a main plate to be slidable in one direction. Also, the main plate supports an elastic part so as to generate an elasticity power in one direction. A power transformation member receives the elasticity power of the elastic member, and transmits the elasticity power to the slide plate in the direction of the opening or the closing according to the position of the slide plate.

摘要翻译： 公开了一种滑动开闭装置和具有该滑动开闭装置的便携式终端。 根据本发明的第一实施例，滑动板连接到主板以沿一个方向滑动。 此外，主板支撑弹性部分，以在一个方向上产生弹性力。 功率变换构件接收弹性构件的弹性力，并且根据滑板的位置将弹性力沿着打开或关闭的方向传递到滑板。

公开(公告)号：US20070032278A1

公开(公告)日：2007-02-08

申请号：US10569516

申请日：2004-08-25

申请人： Jun-Hong Lee ,  Jae-Young Park ,  Chun-Soo Park

发明人： Jun-Hong Lee ,  Jae-Young Park ,  Chun-Soo Park

IPC分类号： H04M1/00

CPC分类号： H04M1/0237 ,  H04M1/0227 ,  H04M1/0233 ,  H04M1/0247

摘要： Disclosed are a sliding opening and closing device and a portable terminal having the same. According to the first embodiment of the present invention, a slide plate is linked to a main plate to be slidable in one direction. Also, the main plate supports an elastic part so as to generate an elasticity power in one direction. A power transformation member receives the elasticity power of the elastic member, and transmits the elasticity power to the slide plate in the direction of the opening or the closing according to the position of the slide plate.

摘要翻译： 公开了一种滑动开闭装置和具有该滑动开闭装置的便携式终端。 根据本发明的第一实施例，滑动板连接到主板以沿一个方向滑动。 此外，主板支撑弹性部分，以在一个方向上产生弹性力。 功率变换构件接收弹性构件的弹性力，并且根据滑板的位置将弹性力沿打开或关闭的方向传递到滑板。

公开(公告)号：US20220229165A1

公开(公告)日：2022-07-21

申请号：US17572173

申请日：2022-01-10

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： G01S7/493 ,  G01S17/36 ,  G01S17/86 ,  G06F3/0346

摘要： A TOF ranging system based on a multi-phase correlation vector synthesis ranging method is presented. The method is a generalized expansion from conventional 2- or 4-phase correlations to arbitrary N-phase correlations in finding in-phase (I) and quadrature-phase (Q) signals of the reflected signal at the receiver, where N is an odd number greater than or equal to 3. The correlation vectors of the output of multi-phase correlators are processed by a zero-force synthesizer to produce optimal I and Q signals, from which the phase delay or ranging information is calculated. Embodiments disclose necessary components in realization of the method, such as half clock shifter, full clock shifter, dual edge reference pulse generator, and correlation integrator. The TOF ranging method enables the construction of finer and more accurate TOF systems like 3D imaging systems, 3D sonar imaging systems, or 3D touchless pointer systems.

公开(公告)号：US20080058039A1

公开(公告)日：2008-03-06

申请号：US11596215

申请日：2005-09-15

申请人： Jun-Hong Lee ,  Chun-Soo Park

发明人： Jun-Hong Lee ,  Chun-Soo Park

IPC分类号： H04M1/00

CPC分类号： H04M1/0237 ,  H04B1/088 ,  H04B1/3833

摘要： Disclosed is a sliding mechanism for opening and closing a cellular phone. The mechanism includes a main plate, a slider plate slidably connected to the main plate, a first block shaft-rotatably fixed to the main plate, one or more first rod member fixed to the first block, a first resilient member connected to the first block and generating expansion force, a second block shaft-rotatably fixed to the slider plate, one or more second rod member fixed to the second block, a second resilient member connected to the second rod member and generating expansion force, and a connection block placed in the central area of the first and second blocks and supporting the end portions of the first and second resilient members. The connection block slidably connects the first and second rod members with the first and second blocks in such a way that the end portion of the first rod member is directed towards the second block and the end portion of the second rod member is directed towards the first block. The first and second resilient members are formed of a compression spring having a good resiliency and service life, thereby improving reliability of cellular phones.

摘要翻译： 公开了一种用于打开和关闭蜂窝电话的滑动机构。 该机构包括主板，可滑动地连接到主板的滑动板，可旋转地固定到主板的第一块轴，固定到第一块的一个或多个第一杆构件，连接到第一块的第一弹性构件 并且产生膨胀力，第二块轴可旋转地固定到滑块板，固定到第二块的一个或多个第二杆构件，连接到第二杆构件并产生膨胀力的第二弹性构件，以及连接块 第一和第二块的中心区域并且支撑第一和第二弹性构件的端部。 连接块可滑动地将第一和第二杆构件与第一和第二块滑动连接，使得第一杆构件的端部指向第二块，并且第二杆构件的端部朝向第一杆构件 块。 第一和第二弹性构件由具有良好弹性和使用寿命的压缩弹簧形成，从而提高蜂窝电话的可靠性。

公开(公告)号：US11435455B2

公开(公告)日：2022-09-06

申请号：US17572173

申请日：2022-01-10

申请人： Chun Soo Park

发明人： Chun Soo Park

IPC分类号： G01S7/493 ,  G01S17/36 ,  G06F3/0346 ,  G01S17/86 ,  G01S15/36 ,  G01S13/36

摘要： A TOF ranging system based on a multi-phase correlation vector synthesis ranging method is presented. The method is a generalized expansion from conventional 2- or 4-phase correlations to arbitrary N-phase correlations in finding in-phase (I) and quadrature-phase (Q) signals of the reflected signal at the receiver, where N is an odd number greater than or equal to 3. The correlation vectors of the output of multi-phase correlators are processed by a zero-force synthesizer to produce optimal I and Q signals, from which the phase delay or ranging information is calculated. Embodiments disclose necessary components in realization of the method, such as half clock shifter, full clock shifter, dual edge reference pulse generator, and correlation integrator. The TOF ranging method enables the construction of finer and more accurate TOF systems like 3D imaging systems, 3D sonar imaging systems, or 3D touchless pointer systems.