公开(公告)号：US07321550B2

公开(公告)日：2008-01-22

申请号：US10778087

申请日：2004-02-17

申请人： Yung-An Kao ,  Chang-Lung Hsiao ,  Po-Lin Chiu ,  Shih-Kai Lee

发明人： Yung-An Kao ,  Chang-Lung Hsiao ,  Po-Lin Chiu ,  Shih-Kai Lee

IPC分类号： H04J11/00

CPC分类号： H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522

摘要： An equalization method suitable for use in a receiver in an orthogonal frequency division multiplexing (OFDM) system utilizing a plurality of sub-carriers. The receiver includes an outer receiver for decoding. The equalization method includes receiving an input signal including at least one preamble symbol containing a training sequence and a plurality of informative OFDM symbols each containing a serial stream of samples, and performing compensations for each of the informative OFDM symbols. Compensation for each of the informative OFDM symbols includes converting the serial stream of samples into parallel samples, performing a fast Fourier transform (FFT) of the parallel samples to obtain a plurality of data symbols, each data symbol corresponding to a sub-carrier, compensating the data symbols for at least one first phase distortion and at least one second phase distortion, and providing at least one amplitude distortion factor to the outer receiver.

摘要翻译： 一种适用于使用多个子载波的正交频分复用（OFDM）系统中的接收机中的均衡方法。 接收机包括用于解码的外部接收机。 所述均衡方法包括：接收包括包含训练序列的至少一个前导码符号的输入信号和包含串行串流样本的多个信息OFDM符号，以及对每个信息OFDM符号执行补偿。 每个信息OFDM符号的补偿包括将样本的串行流转换为并行采样，执行并行采样的快速傅里叶变换（FFT）以获得多个数据符号，每个数据符号对应于子载波，补偿 所述数据符号用于至少一个第一相位失真和至少一个第二相位失真，并且向所述外部接收器提供至少一个幅度失真因子。

公开(公告)号：US20050180461A1

公开(公告)日：2005-08-18

申请号：US10778087

申请日：2004-02-17

申请人： Yung-An Kao ,  Chang-Lung Hsiao ,  Po-Lin Chiu ,  Shih-Kai Lee

发明人： Yung-An Kao ,  Chang-Lung Hsiao ,  Po-Lin Chiu ,  Shih-Kai Lee

IPC分类号： H04J11/00 ,  H04L25/03

CPC分类号： H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522

摘要： An equalization method suitable for use in a receiver in an orthogonal frequency division multiplexing (OFDM) system utilizing a plurality of sub-carriers. The receiver includes an outer receiver for decoding. The equalization method includes receiving an input signal including at least one preamble symbol containing a training sequence and a plurality of informative OFDM symbols each containing a serial stream of samples, and performing compensations for each of the informative OFDM symbols. Compensation for each of the informative OFDM symbols includes converting the serial stream of samples into parallel samples, performing a fast Fourier transform (FFT) of the parallel samples to obtain a plurality of data symbols, each data symbol corresponding to a sub-carrier, compensating the data symbols for at least one first phase distortion and at least one second phase distortion, and providing at least one amplitude distortion factor to the outer receiver.

摘要翻译： 一种适用于使用多个子载波的正交频分复用（OFDM）系统中的接收机中的均衡方法。 接收机包括用于解码的外部接收机。 所述均衡方法包括：接收包括包含训练序列的至少一个前导码符号的输入信号和包含串行串流样本的多个信息OFDM符号，以及对每个信息OFDM符号执行补偿。 每个信息OFDM符号的补偿包括将样本的串行流转换为并行采样，执行并行采样的快速傅里叶变换（FFT）以获得多个数据符号，每个数据符号对应于子载波，补偿 所述数据符号用于至少一个第一相位失真和至少一个第二相位失真，并且向所述外部接收器提供至少一个幅度失真因子。

公开(公告)号：US20050265224A1

公开(公告)日：2005-12-01

申请号：US10995466

申请日：2004-11-24

申请人： Shih-Kai Lee ,  Po-Lin Chiu ,  Chang-Lung Hsiao ,  Jiann-An Tsai

发明人： Shih-Kai Lee ,  Po-Lin Chiu ,  Chang-Lung Hsiao ,  Jiann-An Tsai

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713 ,  H04J11/00

CPC分类号： H04J13/12 ,  H04J13/0044

摘要： An apparatus for generating a 2D spreading code and method for the same are proposed. The apparatus for generating the 2D spreading code includes a column counter, a row counter, a codeword selector, and a logic unit. The logic unit performs logic operations on the output of the column counter, the row counter, and the codeword selector to generate the 2D spreading code of desired order designated by the codeword selector. The 2D spreading code includes 4 2×2 initial matrixes for generating 4i codes for 4i users in the ith order. The apparatus for generating the 2D spreading code according to the present invention is advantageously used in OFDM system to increase the number of subscribers with reduced interference.

摘要翻译： 提出了一种用于生成2D扩展码的装置及其方法。 用于生成2D扩展码的装置包括列计数器，行计数器，码字选择器和逻辑单元。 逻辑单元对列计数器，行计数器和码字选择器的输出执行逻辑运算，以产生由码字选择器指定的期望顺序的2D扩展码。 2D扩展码包括4×2×2个初始矩阵，用于按照第i个顺序为4位用户生成4位代码。 根据本发明的用于生成2D扩展码的装置在OFDM系统中有利地用于增加具有减小的干扰的用户数量。

公开(公告)号：US07586835B2

公开(公告)日：2009-09-08

申请号：US10995466

申请日：2004-11-24

申请人： Shih-Kai Lee ,  Po-Lin Chiu ,  Chang-Lung Hsiao ,  Jiann-An Tsai

发明人： Shih-Kai Lee ,  Po-Lin Chiu ,  Chang-Lung Hsiao ,  Jiann-An Tsai

IPC分类号： G04B5/24

CPC分类号： H04J13/12 ,  H04J13/0044

摘要： An apparatus for generating a 2D spreading code and method for the same are proposed. The apparatus for generating the 2D spreading code includes a column counter, a row counter, a codeword selector, and a logic unit. The logic unit performs logic operations on the output of the column counter, the row counter, and the codeword selector to generate the 2D spreading code of desired order designated by the codeword selector. The 2D spreading code includes 4 2×2 initial matrixes for generating 4i codes for 4i users in the ith order. The apparatus for generating the 2D spreading code according to the present invention is advantageously used in OFDM system to increase the number of subscribers with reduced interference.

摘要翻译： 提出了一种用于生成2D扩展码的装置及其方法。 用于生成2D扩展码的装置包括列计数器，行计数器，码字选择器和逻辑单元。 逻辑单元对列计数器，行计数器和码字选择器的输出执行逻辑运算，以生成由码字选择器指定的期望顺序的2D扩展码。 2D扩展码包括4个2x2初始矩阵，用于以第i个顺序为4i个用户生成4i码。 根据本发明的用于生成2D扩展码的装置在OFDM系统中有利地用于增加具有减小的干扰的用户数量。

公开(公告)号：US08102932B2

公开(公告)日：2012-01-24

申请号：US11864936

申请日：2007-09-29

申请人： Po-Lin Chiu ,  Ren-Jr Chen

发明人： Po-Lin Chiu ,  Ren-Jr Chen

IPC分类号： H04B7/02

CPC分类号： H04L25/0204 ,  H04L25/0246

摘要： A method and an apparatus for de-mapping symbols in a Multi-Input Multi-Output (MIMO) system are provided. In the present invention, an estimated channel effect and a plurality of received data symbols are used to estimate a plurality of transmitted data symbols. A plurality of constellation points around an estimated value are selected as the detected values of the transmitted data symbol after the estimated value of one of the transmitted data symbols is calculated. Then, the detected values are used to calculate the detected values of remaining transmitted data symbols separately so as to obtain a plurality of detected value sets. Finally, a best one among the detected value sets is chosen as a result of de-mapping the received symbols. Therefore, only a few detected value sets are calculated and a better detected result is obtained, which possesses low complexity and high performance.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）系统中去映射符号的方法和装置。 在本发明中，使用估计的信道效应和多个接收的数据符号来估计多个发送的数据符号。 在计算出发送数据符号之一的估计值之后，选择围绕估计值的多个星座点作为发送数据符号的检测值。 然后，使用检测值分别计算剩余发送数据符号的检测值，以获得多个检测值集合。 最后，作为取消映射所接收到的符号的结果，选择检测值集合中的最佳值。 因此，仅计算几个检测值集，并获得更好的检测结果，具有低复杂性和高性能。

公开(公告)号：US20100207349A1

公开(公告)日：2010-08-19

申请号：US12683320

申请日：2010-01-06

申请人： Po-Lin Chiu ,  Sherng-Ji Tsay ,  Ching-Piao Chang

发明人： Po-Lin Chiu ,  Sherng-Ji Tsay ,  Ching-Piao Chang

IPC分类号： B62M1/04

CPC分类号： B62K3/002 ,  B62H1/12 ,  B62M1/32

摘要： A scooter with auxiliary assembly comprises a frame, a steering rod pivoted on the frame, a front wheel pivoted on the steering rod, a drive assembly fixed on the frame, and rear wheels pivoted on the frame and driven by the drive assembly. At least one pedal is pivoted on the frame, an elastic body connected the pedal and the frame, and at least one transmission assembly actuated by the pedal to rotate the rear wheels; wherein, the scooter has an auxiliary assembly that includes at least one supporter extended from the frame and at least one auxiliary wheel pivotally coupled to the supporter; the auxiliary wheel gets away from the ground due to the rear wheels while laying the scooter on the ground and properly contacts with the ground when the scooter is slant aside in time of forwarding.

摘要翻译： 具有辅助组件的踏板车包括框架，在框架上枢转的转向杆，在转向杆上枢转的前轮，固定在框架上的驱动组件和在框架上枢转并由驱动组件驱动的后轮。 至少一个踏板在框架上枢转，连接踏板和框架的弹性体以及由踏板致动以转动后轮的至少一个传动组件; 其中，所述踏板车具有辅助组件，所述辅助组件包括从所述框架延伸的至少一个支撑件和至少一个辅助轮，所述辅助轮可枢转地联接到所述支撑件; 辅助轮由于后轮而离开地面，同时将踏板车放置在地面上，并且当踏板车在转向时倾斜时，与地面正确接触。

公开(公告)号：US20090003499A1

公开(公告)日：2009-01-01

申请号：US11864936

申请日：2007-09-29

申请人： Po-Lin Chiu ,  Ren-Jr Chen

发明人： Po-Lin Chiu ,  Ren-Jr Chen

IPC分类号： H04B7/10 ,  H04L1/02

CPC分类号： H04L25/0204 ,  H04L25/0246

摘要： A method and an apparatus for de-mapping symbols in a Multi-Input Multi-Output (MIMO) system are provided. In the present invention, an estimated channel effect and a plurality of received data symbols are used to estimate a plurality of transmitted data symbols. A plurality of constellation points around an estimated value are selected as the detected values of the transmitted data symbol after the estimated value of one of the transmitted data symbols is calculated. Then, the detected values are used to calculate the detected values of remaining transmitted data symbols separately so as to obtain a plurality of detected value sets. Finally, a best one among the detected value sets is chosen as a result of de-mapping the received symbols. Therefore, only a few detected value sets are calculated and a better detected result is obtained, which possesses low complexity and high performance.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）系统中去映射符号的方法和装置。 在本发明中，使用估计的信道效应和多个接收的数据符号来估计多个发送的数据符号。 在计算出发送数据符号之一的估计值之后，选择围绕估计值的多个星座点作为发送数据符号的检测值。 然后，使用检测值分别计算剩余发送数据符号的检测值，以获得多个检测值集合。 最后，作为取消映射所接收到的符号的结果，选择检测值集合中的最佳值。 因此，仅计算几个检测值集，并获得更好的检测结果，具有低复杂性和高性能。

公开(公告)号：US20110089656A1

公开(公告)日：2011-04-21

申请号：US12683366

申请日：2010-01-06

申请人： Po-Lin Chiu ,  Sherng-Ji Tsay ,  Ching-Piao Chang

发明人： Po-Lin Chiu ,  Sherng-Ji Tsay ,  Ching-Piao Chang

IPC分类号： B62M1/00

CPC分类号： B62M1/20 ,  B62K3/002

摘要： A manual-swinging scooter includes a steering stem with a handle, a fixture extending therefrom, two main frames with treadles outwardly extending from the fixture, and a wheel assembly connected to the fixture and the main frames, respectively. A swingable assembly pivotally disposed between each main frame and frame wheel has a support seat vertically coupled to the main frame, a base with a bevel surface inclinably disposed on the support seat, a rotary shaft pivoting to the support seat, a connecting shaft respectively engaged with the rotary shaft and the frame wheel, and a brace disposed on the connecting shaft for slidably propping against the bevel surface and for the connecting shaft to swing relative to the bevel surface.

摘要翻译： 手动摇摆式踏板车包括具有把手的转向杆，从其延伸的固定件，具有从固定装置向外延伸的踏板的两个主框架和分别连接到固定装置和主框架的车轮组件。 枢转地设置在每个主框架和框架轮之间的可摆动组件具有垂直联接到主框架的支撑座，具有可倾斜地设置在支撑座上的斜面的基座，枢转到支撑座的旋转轴，分别接合的连接轴 旋转轴和框架轮以及布置在连接轴上的支架，用于可滑动地支撑在斜面上，并使连接轴相对于斜面摆动。

公开(公告)号：US07392872B2

公开(公告)日：2008-07-01

申请号：US11469469

申请日：2006-08-31

申请人： Po-Lin Chiu ,  Shern-Ji Tsay ,  Ching-Piao Chang

发明人： Po-Lin Chiu ,  Shern-Ji Tsay ,  Ching-Piao Chang

IPC分类号： B60K1/02

CPC分类号： B62B5/0026 ,  A63B55/61 ,  B60K1/04 ,  B60K7/0007 ,  B60K17/043 ,  B60K2007/003 ,  B60K2007/0046 ,  B60K2007/0061 ,  B60L2200/30 ,  B60L2220/44 ,  B60L2220/46 ,  B62B1/002 ,  B62B1/02 ,  B62B5/004 ,  B62B5/0053 ,  B62B5/0066 ,  B62B5/0069 ,  B62B5/067

摘要： A power assisted vehicle includes an auxiliary propelling device disposed to the frame body. The auxiliary propelling device has an auxiliary wheel and at least one transmission portion disposed in the auxiliary wheel. When two friction wheels of the transmission portion fasten to two sides of a friction ring of the auxiliary wheel, and the two power sources is in reverse to drive the two friction wheels for rotating, a wheel rim and a tire are further driven to produce rotations. The power assisted vehicle is therefore capable of self-propelled going forward without any external force. A processing device is further disposed in the power assisted vehicle. The auxiliary propelling device is then activated when the power assisted vehicle is at a specific speed. The energy consumption for the power sources is then reduced and the service life is extended. The transmission force distribution generated from the power sources is further adjustable. The usage of the power assisted vehicle is more efficient.

摘要翻译： 动力辅助车辆包括设置在车架主体上的辅助推进装置。 辅助推进装置具有辅助轮和设置在辅助轮中的至少一个传动部。 当传动部分的两个摩擦轮固定在辅助轮的摩擦环的两侧，并且两个动力源相反地驱动两个摩擦轮进行旋转时，进一步驱动轮辋和轮胎产生旋转 。 因此，动力辅助车辆能够在没有任何外力的情况下自行前进。 处理装置还设置在动力辅助车辆中。 当辅助车辆处于特定速度时，辅助推进装置被启动。 然后减少电源的能耗，延长使用寿命。 从电源产生的传输力分布进一步可调。 动力辅助车辆的使用效率更高。

公开(公告)号：US20080088109A1

公开(公告)日：2008-04-17

申请号：US11549255

申请日：2006-10-13

申请人： Po-Lin Chiu ,  Shern-Ji Tsay ,  Ching Piao-Chang

发明人： Po-Lin Chiu ,  Shern-Ji Tsay ,  Ching Piao-Chang

IPC分类号： B62M1/00

CPC分类号： B62K3/002 ,  B62M1/30 ,  B62M1/32

摘要： The present invention relates to the drive assembly coupled with the pedal thereon the frame, and the transmission assemblies rotated by the drive assembly. Thereby to step on the pedal repeatedly rotates the transmission assemblies to make the wheel rotate in single direction. Therefore, the invention can first enhance the operating stability and then get the exercise effect while the user kicks the ground to propel the pedal scooter and steps on the pedal repeatedly.

摘要翻译： 本发明涉及与其上的踏板连接在其上的驱动组件，以及由驱动组件旋转的传动组件。 从而踏上踏板反复旋转传动组件，使轮沿单向旋转。 因此，本发明可以首先提高操作稳定性，然后在用户踢地面推动踏板踏板车并重复踏步踏板时获得运动效果。