公开(公告)号：US08279014B2

公开(公告)日：2012-10-02

申请号：US12986372

申请日：2011-01-07

申请人： Chun-Chin Chen ,  Yun-Hsueh Chuang ,  Yi-Chun Lu

发明人： Chun-Chin Chen ,  Yun-Hsueh Chuang ,  Yi-Chun Lu

IPC分类号： H03L7/08 ,  H04B15/00

CPC分类号： H03L7/1976

摘要： A frequency synthesizer of a transceiver for generating a crystal oscillation frequency and a carry frequency having been done a process of frequency offset cancellation with that of another transceiver. The frequency offset cancellation of the frequency synthesizer is done in accordance with a wireless signal which is transmitted from another transceiver received. The frequency synthesizer has a first sigma-delta modulator receiving a signal transmitted by a transceiver at far area responding thereafter a frequency divisor value in accordance with the channel information of the received signal and a frequency offset between two.

摘要翻译： 一种用于产生晶体振荡频率和进位频率的收发器的频率合成器，该频率合成器已经进行了与另一个收发器的频率偏移消除的处理。 频率合成器的频率偏移消除是根据从另一收发信机发送的无线信号完成的。 频率合成器具有第一Σ-Δ调制器，接收由远端的收发信机发送的信号，然后根据接收信号的信道信息和两者之间的频率偏移响应频率除数值。

公开(公告)号：US20120176202A1

公开(公告)日：2012-07-12

申请号：US12986372

申请日：2011-01-07

申请人： Chun-Chin CHEN ,  Yun-Hsueh CHUANG ,  Yi-Chun LU

发明人： Chun-Chin CHEN ,  Yun-Hsueh CHUANG ,  Yi-Chun LU

IPC分类号： H03L7/00

CPC分类号： H03L7/1976

摘要： A frequency synthesizer of a transceiver for generating a crystal oscillation frequency and a carry frequency having been done a process of frequency offset cancellation with that of another transceiver. The frequency offset cancellation of the frequency synthesizer is done in accordance with a wireless signal which is transmitted from another transceiver received. The frequency synthesizer has a first sigma-delta modulator receiving a signal transmitted by a transceiver at far area responding thereafter a frequency divisor value in accordance with the channel information of the received signal and a frequency offset between two.

摘要翻译： 一种用于产生晶体振荡频率和进位频率的收发器的频率合成器，该频率合成器已经进行了与另一个收发器的频率偏移消除的处理。 频率合成器的频率偏移消除是根据从另一收发信机发送的无线信号完成的。 频率合成器具有第一Σ-Δ调制器，接收由远端的收发信机发送的信号，然后根据接收信号的信道信息和两者之间的频率偏移响应频率除数值。

公开(公告)号：US20120114020A1

公开(公告)日：2012-05-10

申请号：US12941574

申请日：2010-11-08

申请人： Wei-Tun Peng ,  Chun-Chin Chen

发明人： Wei-Tun Peng ,  Chun-Chin Chen

IPC分类号： H04B1/707

CPC分类号： H04B1/7087 ,  H04B1/70757

摘要： The present invention is directed to a de-spreading method for a noncoherent receiver including: obtaining an output signal from a matched filter of a noncoherent receiver, which is PSK modulated and is at least two times upsampled; performing a noncoherent demodulation step including performing a differential operation on an in-phase and quadrature-phase components of the output signal of the matched filter to obtain a demodulated signal; and performing a de-spreading step on the demodulated signal with a PN table corresponding to the demodulated signal to obtain the de-spreaded data, wherein the PN table corresponding to the demodulated data contains chips which are either logic 1 or logic −1. A noncoherent receiver is also provided.

摘要翻译： 本发明涉及一种用于非相干接收机的去扩展方法，包括：从非相干接收机的匹配滤波器获得输出信号，其是PSK调制的并且被上采样至少两次; 执行非相干解调步骤，包括对所述匹配滤波器的输出信号的同相和正交相位分量执行差分运算以获得解调信号; 以及对与解调信号相对应的PN表对解调信号执行去扩展步骤以获得解扩数据，其中对应于解调数据的PN表包含逻辑1或逻辑-1的芯片。 还提供非相干接收机。

公开(公告)号：US20110292982A1

公开(公告)日：2011-12-01

申请号：US12986438

申请日：2011-01-07

申请人： Chun-Chin Chen ,  Wei-Tun Peng ,  Li-Rong Wang

发明人： Chun-Chin Chen ,  Wei-Tun Peng ,  Li-Rong Wang

IPC分类号： H04B17/00

CPC分类号： G01S5/14 ,  G01S11/02 ,  G01S11/06

摘要： Apparatus for positioning and method for the same are disclosed. The apparatus comprises two transceivers and four time-to-digital converters. The time-to-digital converters compare the phase difference between two signals, one is the crystal oscillation and the other is the phase of the IF (intermediate frequency) signal extracted before ADC receiving by the transceiver. The method comprises the following steps: The first place transmits a first wireless signal by a first transceiver to the second place. The second place then responds a second wireless signal by a second transceiver to the first place. The first phase difference at the first place is then measured by the time-to-digital converter. The second phase difference at the second place is also measured. The distance between the first place and the second place is proportional to one half of the sum of first phase difference and the second phase difference.

摘要翻译： 公开了一种定位装置及其方法。 该装置包括两个收发器和四个时间 - 数字转换器。 时间 - 数字转换器比较两个信号之间的相位差，一个是晶体振荡，另一个是在收发器接收ADC之前提取的IF（中频）信号的相位。 该方法包括以下步骤：第一方通过第一收发器向第二方发送第一无线信号。 第二个地方是第一个收发器响应第二个无线信号。 然后通过时间 - 数字转换器测量第一位置的第一相位差。 也测量第二个相位差。 第一位置和第二位置之间的距离与第一相位差和第二相位差的和的一半成比例。

公开(公告)号：US20100307448A1

公开(公告)日：2010-12-09

申请号：US12633409

申请日：2009-12-08

申请人： Chun-Chin Chen ,  Cheng-Tsung Yang ,  Fredrik Johansson ,  Lars Andersson

发明人： Chun-Chin Chen ,  Cheng-Tsung Yang ,  Fredrik Johansson ,  Lars Andersson

IPC分类号： F01M1/04 ,  F01M13/02

CPC分类号： F01M9/08 ,  F01M11/02 ,  F01M13/00

摘要： A lubrication system for a four stroke engine including an oil pan for storing lubrication oil; a crankcase, wherein a crankshaft is disposed, which crankshaft has a balance weight and is coupled with a piston of a cylinder; a gear assembly room; a rocker-arm chamber; and a gas-oil separator for separating gas and oil from a mix of gas and oil; wherein the oil pan communicates with the crankcase by an oil suction passage, in which a first check valve is disposed; the crankcase communicates with the gear assembly room by a first oil delivery passage; the gear assembly room communicates with the rocker-arm chamber by a second oil delivery passage, and the gear assembly room communicates with the oil pan by a third oil delivery passage; the rocker-arm chamber communicates with the crankcase by a first oil return passage having a second check valve therein.

摘要翻译： 一种用于四冲程发动机的润滑系统，包括用于存储润滑油的油盘; 曲轴箱，其中设置有曲轴，所述曲轴具有平衡重并与气缸的活塞联接; 齿轮组装室; 摇臂室; 以及用于从气体和油的混合物中分离气体和油的瓦斯油分离器; 其中油盘通过设置有第一止回阀的吸油通道与曲轴箱连通; 曲轴箱通过第一输油通道与齿轮组合室连通; 齿轮组合室通过第二油输送通道与摇臂室连通，并且齿轮组合室通过第三输油通道与油盘连通; 摇臂室通过其中具有第二止回阀的第一回油通道与曲轴箱连通。

公开(公告)号：US08194793B2

公开(公告)日：2012-06-05

申请号：US12697612

申请日：2010-02-01

申请人： Syang-Myau Hwang ,  Chun Chin Chen

发明人： Syang-Myau Hwang ,  Chun Chin Chen

IPC分类号： H03D3/22 ,  H04L27/22 ,  H04L27/18 ,  H03D3/00 ,  H03K9/06

CPC分类号： H04L27/0014 ,  H04L27/22

摘要： A multi-stage frequency offset (FO) estimation and compensation method and its circuit are described. The method includes performing at least a stage of primary-level FO estimation and compensation procedure, and a stage of advance-level FO estimation and compensation procedure. The first stage receives an input carrier signal of a larger FO and outputs a corrected carrier signal with an estimation error within the required estimation range of the next stage, to the next stage. Generated and fed forward stage-by-stage, the corrected carrier signal free of FO may be approached. Besides, since a feed-forward rather than a closed-loop approach is employed, the SNR requirement may be lower. Also, at primary-level, modulation may be first removed so the whole input carrier signal may be used to estimate FO; at advance-level, the periodic PN sequence in the input carrier signal may be utilized to estimate FO, thereby no dedicated training symbols are required.

摘要翻译： 描述了多级频偏（FO）估计和补偿方法及其电路。 该方法包括执行初级FO估计和补偿过程的至少一个阶段，以及提前级FO估计和补偿程序的阶段。 第一级接收较大FO的输入载波信号，并将具有估计误差的校正载波信号输出到下一级的所需估计范围内，到下一级。 生成和逐级前馈，可以接近没有FO的校正载波信号。 此外，由于采用前馈而不是闭环方式，因此SNR要求可能较低。 此外，在初级时，可以首先去除调制，使得整个输入载波信号可以用于估计FO; 在提前级，输入载波信号中的周期性PN序列可用于估计FO，从而不需要专用的训练符号。

公开(公告)号：US20110080978A1

公开(公告)日：2011-04-07

申请号：US12697612

申请日：2010-02-01

申请人： Syang-Myau HWANG ,  Chun Chin Chen

发明人： Syang-Myau HWANG ,  Chun Chin Chen

IPC分类号： H04L27/00

CPC分类号： H04L27/0014 ,  H04L27/22

摘要： A multi-stage frequency offset (FO) estimation and compensation method and its circuit are described. The method includes performing at least a stage of primary-level FO estimation and compensation procedure, and a stage of advance-level FO estimation and compensation procedure. The first stage receives an input carrier signal of a larger FO and outputs a corrected carrier signal with an estimation error within the required estimation range of the next stage, to the next stage. Generated and fed forward stage-by-stage, the corrected carrier signal free of FO may be approached. Besides, since a feed-forward rather than a closed-loop approach is employed, the SNR requirement may be lower. Also, at primary-level, modulation may be first removed so the whole input carrier signal may be used to estimate FO; at advance-level, the periodic PN sequence in the input carrier signal may be utilized to estimate FO, thereby no dedicated training symbols are required.

摘要翻译： 描述了多级频偏（FO）估计和补偿方法及其电路。 该方法包括执行初级FO估计和补偿过程的至少一个阶段，以及提前级FO估计和补偿程序的阶段。 第一级接收较大FO的输入载波信号，并将具有估计误差的校正载波信号输出到下一级的所需估计范围内，到下一级。 生成和逐级前馈，可以接近没有FO的校正载波信号。 此外，由于采用前馈而不是闭环方式，因此SNR要求可能较低。 此外，在初级时，可以首先去除调制，使得整个输入载波信号可以用于估计FO; 在提前级，输入载波信号中的周期性PN序列可用于估计FO，从而不需要专用的训练符号。

公开(公告)号：US06755638B2

公开(公告)日：2004-06-29

申请号：US10001814

申请日：2001-12-05

申请人： Chun-Chin Chen ,  Chung-Hsien Wu ,  Ting-Goang Liang ,  Hsi-Hsin Shih

发明人： Chun-Chin Chen ,  Chung-Hsien Wu ,  Ting-Goang Liang ,  Hsi-Hsin Shih

IPC分类号： B29C4712

CPC分类号： B29C47/124 ,  B29C47/0023 ,  B29C47/003 ,  B29L2031/3005 ,  B60J10/22 ,  B60J10/70

摘要： A molding machine for producing a continuous extrusion molding product with varying profile includes a die with an inlet for receiving molten material, a channel, an outlet, and shaping knives rotatable around axes non-parallel to the flow direction of the molten material between first and second operational positions. Shaping knives have molding surfaces and together define a first contour in the outlet when the shaping knives are in their first operational positions, and define a second contour in the outlet when the shaping knives are in their second operational positions. Shaping knives can be rotated around axes perpendicular or oblique to the flow direction of molten material.

摘要翻译： 用于生产具有变化轮廓的连续挤出成型产品的成型机包括具有用于接收熔融材料的入口的模具，通道，出口和成形刀，所述成型刀可在不平行于熔融材料的流动方向的轴线周围旋转，第一和 第二个业务职位。 整形刀具有模制表面，并且当成形刀具处于其第一操作位置时，在出口中形成第一轮廓，并且当成形刀具处于其第二操作位置时，在出口中限定第二轮廓。 整形刀可围绕与熔融材料的流动方向垂直或倾斜的轴线旋转。

公开(公告)号：US06468014B2

公开(公告)日：2002-10-22

申请号：US09760838

申请日：2001-01-17

申请人： Chun-Chin Chen

发明人： Chun-Chin Chen

IPC分类号： F16B3506

CPC分类号： F16B25/0047 ,  F16B25/0015 ,  F16B25/0052 ,  F16B25/0078

摘要： A screw includes a cylindrical shank having an upper portion formed with spiral circular threads and a lower portion formed with spiral triangular threads, each of the spiral triangular threads having three budges having three sharp edges and three pointed tips, the pointed tips of the spiral triangular threads being located at different positions, the cylindrical shank having a pointed end at a lower portion thereof, whereby the screw can be easily and rapidly turned into a piece of hard wood.

摘要翻译： 螺钉包括具有形成有螺旋形圆形螺纹的上部的圆柱形柄和形成有螺旋形三角形螺纹的下部，每个螺旋形三角形螺纹具有三个具有三个尖锐边缘和三个尖端的突出部，螺旋形三角形的尖端 螺纹位于不同的位置，圆柱柄在其下部具有尖端，由此螺钉可以容易且快速地变成一块硬木。

公开(公告)号：US08225774B2

公开(公告)日：2012-07-24

申请号：US12633409

申请日：2009-12-08

申请人： Chun-Chin Chen ,  Cheng-Tsung Yang ,  Fredrik Johansson ,  Lars Andersson

发明人： Chun-Chin Chen ,  Cheng-Tsung Yang ,  Fredrik Johansson ,  Lars Andersson

IPC分类号： F01M9/00

CPC分类号： F01M9/08 ,  F01M11/02 ,  F01M13/00

摘要： A lubrication system for a four stroke engine including an oil pan for storing lubrication oil; a crankcase, wherein a crankshaft is disposed, which crankshaft has a balance weight and is coupled with a piston of a cylinder; a gear assembly room; a rocker-arm chamber; and a gas-oil separator for separating gas and oil from a mix of gas and oil; wherein the oil pan communicates with the crankcase by an oil suction passage, in which a first check valve is disposed; the crankcase communicates with the gear assembly room by a first oil delivery passage; the gear assembly room communicates with the rocker-arm chamber by a second oil delivery passage, and the gear assembly room communicates with the oil pan by a third oil delivery passage; the rocker-arm chamber communicates with the crankcase by a first oil return passage having a second check valve therein.

摘要翻译： 一种用于四冲程发动机的润滑系统，包括用于存储润滑油的油盘; 曲轴箱，其中设置有曲轴，所述曲轴具有平衡重并与气缸的活塞联接; 齿轮组装室; 摇臂室; 以及用于从气体和油的混合物中分离气体和油的瓦斯油分离器; 其中油盘通过设置有第一止回阀的吸油通道与曲轴箱连通; 曲轴箱通过第一输油通道与齿轮组合室连通; 齿轮组合室通过第二油输送通道与摇臂室连通，并且齿轮组合室通过第三输油通道与油盘连通; 摇臂室通过其中具有第二止回阀的第一回油通道与曲轴箱连通。