公开(公告)号：US09191259B2

公开(公告)日：2015-11-17

申请号：US13884175

申请日：2011-10-25

申请人： Sang In Cho ,  Kyu Min Kang

发明人： Sang In Cho ,  Kyu Min Kang

IPC分类号： H04L27/06 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L27/265 ,  H04L27/0006 ,  H04L27/2647

摘要： Provided is a frequency sensing method and apparatus in an orthogonal frequency division multiplexing (OFDM) system. Provided is a method of sensing a frequency of a received signal that is received from an outside in order to perform one of a plurality of radio communications. An OFDM apparatus may need to inspect a required frequency band before or after performing one of the plurality of radio communications, and to determine whether the frequency band is being used by another radio communication.

摘要翻译： 提供了一种正交频分复用（OFDM）系统中的频率感测方法和装置。 提供了一种感测从外部接收的接收信号的频率以便执行多个无线电通信之一的方法。 OFDM装置可能需要在执行多个无线电通信之一之前或之后检查所需的频带，并且确定频带是否被另一个无线电通信使用。

公开(公告)号：US08585477B2

公开(公告)日：2013-11-19

申请号：US13148245

申请日：2010-03-12

申请人： Seong In Cho ,  Jae Yoon Ok

发明人： Seong In Cho ,  Jae Yoon Ok

IPC分类号： A63B67/02

CPC分类号： A63B69/3623 ,  A63B69/3658 ,  A63B71/04 ,  A63B71/0622 ,  A63B2024/0031 ,  A63B2024/0034 ,  A63B2071/068 ,  G09B19/0038 ,  G09B19/24

摘要： A virtual golf simulation device and a method for the same are disclosed. The virtual golf simulation device includes a sensor for sensing flight of a ball hit by a golfer, an image processor for processing a simulated image of a virtual golf course and a simulated image of a flight trajectory of the ball sensed by the sensor, a database including a text storing part for storing text data corresponding to predetermined voice guides to determined text data among the text data stored in the text storing part to voice, and a controller for identifying a situation to trigger voice guidance to the golfer, extracting or extracting and combining the predetermined text data, and outputting the extracted or combined text data to the voice converter.

摘要翻译： 公开了一种虚拟高尔夫模拟装置及其方法。 虚拟高尔夫模拟装置包括用于感测由高尔夫球手击中的球的飞行的传感器，用于处理虚拟高尔夫球场的模拟图像的图像处理器和由传感器感测的球的飞行轨迹的模拟图像，数据库 包括文本存储部分，用于将存储在文本存储部分中的文本数据中的预定语音引导对应于确定的文本数据的文本数据存储到语音中;以及控制器，用于识别情况以触发对高尔夫球手的语音指导，提取或提取 组合预定的文本数据，并将提取或组合的文本数据输出到语音转换器。

公开(公告)号：US08009728B2

公开(公告)日：2011-08-30

申请号：US11635937

申请日：2006-12-08

申请人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Kyu-Min Kang ,  Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04L2025/03439

摘要： A parallel equalizer for a DS-CDMA UWB system and method thereof are provided. The parallel equalizer includes: a filter block for filtering a training input signal in a ‘training mode’, and filtering the plurality of input signals in parallel in a ‘symbol decision mode’; a symbol decision block for obtaining a symbol error based on a output from the filter block and a training symbol in the ‘training mode’, and estimating a transmission symbol for each of the input signals in the ‘symbol decision mode’, obtaining an error of one among the estimated transmission symbols for a symbol error calculating input signal; and an weight update block for updating a filter tap coefficients of the filter block based on the training input signal or the symbol error calculating input signal and the symbol error and transmitting the updated filter tap coefficients into the filter block.

摘要翻译： 提供了一种用于DS-CDMA UWB系统的并行均衡器及其方法。 并行均衡器包括：滤波器块，用于以“训练模式”对训练输入信号进行滤波，并且以“符号判定模式”并行地对多个输入信号进行滤波; 用于基于来自滤波块的输出和“训练模式”中的训练符号获得符号误差的符号判定块，并且以“符号判定模式”为每个输入信号估计发送符号，获得误差 估计的传输符号中的一个用于符号误差计算输入信号; 以及权重更新块，用于基于训练输入信号或符号误差计算输入信号和符号错误来更新滤波器块的滤波器抽头系数，并将更新的滤波器抽头系数发送到滤波器块中。

公开(公告)号：US07831649B2

公开(公告)日：2010-11-09

申请号：US11576565

申请日：2005-11-02

申请人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

发明人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

IPC分类号： G06F17/14

CPC分类号： H04L27/263 ,  H04L27/265

摘要： Provided is a method for transforming data using a look-up table. The method includes the steps of: (a) mapping pre-processed input binary data to a constellation diagram divided into four quadrants to output a first complex number; (b) performing addition/subtraction operations between real numbers and between imaginary numbers with respect to the first complex number and a second complex number; and (c) reading a fourth complex from a look-up table in response to the first complex number, the second complex number and a third complex number, the look-up table outputting the fourth complex by performing a subtraction operation on multiplication results between real numbers and between imaginary numbers and an addition operation on multiplication results between the real numbers and the imaginary numbers with respect to the result value of the step (b) and the third complex number. Accordingly, it is possible to reduce the hardware size at the time of IFFT/FFT design and to provide a high-speed, low-power operation.

摘要翻译： 提供了一种使用查找表来转换数据的方法。 该方法包括以下步骤：（a）将预处理的输入二进制数据映射到分成四个象限的星座图，以输出第一个复数; （b）相对于第一复数和第二复数执行实数之间和虚数之间的加法/减法运算; 以及（c）响应于第一复数，第二复数和第三复数，从查找表读取第四复数，查找表通过对乘法结果执行减法运算来输出第四复数 实数和虚数之间以及相对于步骤（b）和第三复数的结果值的实数和虚数之间的相乘结果的加法运算。 因此，可以在IFFT / FFT设计时降低硬件尺寸并提供高速，低功率操作。

公开(公告)号：US07693924B2

公开(公告)日：2010-04-06

申请号：US11264886

申请日：2005-11-02

申请人： Sang In Cho ,  Sangsung Choi ,  Kwang Roh Park

发明人： Sang In Cho ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： G06F17/14

CPC分类号： H04L27/265 ,  H04L27/263

摘要： A 2N-point and N-point FFT/IFFT dual mode processor is provided. The processor includes a butterfly operator, the first and second MUXs, and the first and second N-point FFT processors. The butterfly operator receives 2N data and butterfly-operates on the received 2N data when receiving a control signal ‘0’ from the controller. The first and second MUXs respectively receive results from the butterfly operator to output the results in an increment of N when receiving a control signal ‘0’ from the controller, and respectively outputs different N data when receiving a control signal ‘1’ from the controller. The first and second N-point FFT processors N-point FFT operate on the results from the first and second MUXs and respectively output the same under control of the controller. Since the N-point FFT operation can be simultaneously performed two times at a receiver, the performance of the receiver can be enhanced.

摘要翻译： 提供2N点和N点FFT / IFFT双模式处理器。 处理器包括蝶形运算符，第一和第二MUX以及第一和第二N点FFT处理器。 当从控制器接收到控制信号“0”时，蝶形运算符接收2N个数据并对接收的2N数据进行蝶形运算。 当从控制器接收到控制信号“0”时，第一和第二MUX分别接收蝶形运算器的结果以输出N的增量，并且当从控制器接收到控制信号“1”时分别输出不同的N数据 。 第一和第二N点FFT处理器N点FFT对来自第一和第二MUX的结果进行操作，并在控制器的控制下分别输出。 由于在接收机可以同时进行N点FFT运算两次，所以可以提高接收机的性能。

公开(公告)号：US07660339B2

公开(公告)日：2010-02-09

申请号：US11634006

申请日：2006-12-05

申请人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04B1/18 ,  H04B1/00

CPC分类号： H04L27/2657 ,  H04B1/7143 ,  H04B1/7163 ,  H04B2001/7154 ,  H04L27/2676

摘要： Provided are an apparatus and method for estimating and correcting a frequency offset in a multiband-Orthogonal Frequency Division Multiplexing Ultra-Wideband system using a time frequency hopping. The method includes the steps of: calculating a tangent input having a first value (X) and a second value (Y) by using PS symbols transferred over same frequency band with respect to one of a plurality of frequency bands used for frequency hopping; calculating tan(X/Y) using the first value (X) and the second value (Y), and calculating an index corresponding to the value of tan(X/Y) from a look-up table created by reflecting a relative frequency offset with respect to a center frequency; calculating indexes representing frequency offsets estimated with respect to remaining frequency bands used for frequency hopping from the look-up table by using the calculated index; extracting an index of a numerical controlled oscillator according to correction positions with respect to a plurality of frequency bands by using the calculated indexes; and correcting the frequency offsets estimated using the extracted indexes according to time frequency patterns by using a numerical controlled oscillator table.

摘要翻译： 提供了一种用于使用时间跳频估计和校正多频带 - 正交频分复用超宽带系统中的频率偏移的装置和方法。 该方法包括以下步骤：通过使用相对于用于跳频的多个频带之一的相同频带传输的PS符号来计算具有第一值（X）和第二值（Y）的切线输入; 使用第一值（X）和第二值（Y）计算tan（X / Y），并且从通过反映相对频率偏移产生的查找表计算与tan（X / Y）的值相对应的指数 相对于中心频率; 计算表示使用所计算的索引从查找表中跳频所使用的剩余频带估计的频率偏移的索引; 通过使用计算出的索引，根据关于多个频带的校正位置提取数控振荡器的索引; 以及通过使用数控振荡器表，根据时间频率模式校正使用所提取的索引估计的频率偏移。

公开(公告)号：US20080103599A1

公开(公告)日：2008-05-01

申请号：US11968183

申请日：2008-01-01

申请人： Daniel Kim ,  Thomas Afzal ,  Michael Reo ,  Uriel Chee ,  In Cho ,  Kunwoo Lee ,  Curtis Frank ,  Sung Kyu Ha

发明人： Daniel Kim ,  Thomas Afzal ,  Michael Reo ,  Uriel Chee ,  In Cho ,  Kunwoo Lee ,  Curtis Frank ,  Sung Kyu Ha

IPC分类号： A61F2/44

CPC分类号： A61F2/4425 ,  A61B17/86 ,  A61F2/30742 ,  A61F2/30767 ,  A61F2/30965 ,  A61F2/442 ,  A61F2/4611 ,  A61F2002/30069 ,  A61F2002/30133 ,  A61F2002/30383 ,  A61F2002/30462 ,  A61F2002/305 ,  A61F2002/3052 ,  A61F2002/30523 ,  A61F2002/30563 ,  A61F2002/30566 ,  A61F2002/30578 ,  A61F2002/30596 ,  A61F2002/30604 ,  A61F2002/30733 ,  A61F2002/30841 ,  A61F2002/30884 ,  A61F2002/30904 ,  A61F2002/448 ,  A61F2002/4495 ,  A61F2002/4622 ,  A61F2002/4627 ,  A61F2002/4628 ,  A61F2220/0025 ,  A61F2220/0075 ,  A61F2230/0015 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00161 ,  A61F2310/00179 ,  A61L2430/38

摘要： Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the sagittal plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.

摘要翻译： 描述了假体椎间盘及其使用方法。 主体假体盘包括由可压缩的芯构件分开的上端板和下端板。 本文所述的假体盘包括一件式，两件式，三件式和四件式结构。 主体假体椎板在垂直方向上呈现刚度，扭转刚度，矢状平面中的弯曲刚度和前平面中的弯曲刚度，其中可以通过调节椎间盘的部件来独立地控制这些特征的程度。 所描述的假体盘的几个实施例的端板和芯构件之间的界面机构能够实现非常容易的用于植入的外科手术。

公开(公告)号：US20070133658A1

公开(公告)日：2007-06-14

申请号：US11634006

申请日：2006-12-05

申请人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Cheol-Ho Shin ,  Sung-Woo Choi ,  Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04B1/00

CPC分类号： H04L27/2657 ,  H04B1/7143 ,  H04B1/7163 ,  H04B2001/7154 ,  H04L27/2676

摘要： Provided are an apparatus and method for estimating and correcting a frequency offset in a multiband-Orthogonal Frequency Division Multiplexing Ultra-Wideband system using a time frequency hopping. The method includes the steps of: calculating a tangent input having a first value (X) and a second value (Y) by using PS symbols transferred over same frequency band with respect to one of a plurality of frequency bands used for frequency hopping; calculating tan(X/Y) using the first value (X) and the second value (Y), and calculating an index corresponding to the value of tan(X/Y) from a look-up table created by reflecting a relative frequency offset with respect to a center frequency; calculating indexes representing frequency offsets estimated with respect to remaining frequency bands used for frequency hopping from the look-up table by using the calculated index; extracting an index of a numerical controlled oscillator according to correction positions with respect to a plurality of frequency bands by using the calculated indexes; and correcting the frequency offsets estimated using the extracted indexes according to time frequency patterns by using a numerical controlled oscillator table.

摘要翻译： 提供了一种用于使用时间跳频估计和校正多频带 - 正交频分复用超宽带系统中的频率偏移的装置和方法。 该方法包括以下步骤：通过使用相对于用于跳频的多个频带之一的相同频带传输的PS符号来计算具有第一值（X）和第二值（Y）的切线输入; 使用第一值（X）和第二值（Y）计算tan（X / Y），并且从通过反映相对频率偏移产生的查找表计算与tan（X / Y）的值相对应的指数 相对于中心频率; 计算表示使用所计算的索引从查找表中跳频所使用的剩余频带估计的频率偏移的索引; 通过使用计算出的索引，根据关于多个频带的校正位置提取数控振荡器的索引; 以及通过使用数控振荡器表，根据时间频率模式校正使用所提取的索引估计的频率偏移。

公开(公告)号：US20070006901A1

公开(公告)日：2007-01-11

申请号：US11483852

申请日：2006-07-11

申请人： In Cho ,  Joung Kim

发明人： In Cho ,  Joung Kim

IPC分类号： B08B7/04 ,  B08B9/20 ,  B08B3/00 ,  B08B3/04 ,  B08B3/12

CPC分类号： A47L15/4221 ,  A47L2301/08 ,  A47L2501/03 ,  A47L2501/20 ,  A47L2501/30

摘要： A dishwasher is provided. The dishwasher includes a tub defining a washing chamber, a lower nozzle formed in the tube to spray washing nozzle, an upper nozzle formed in the tube above the lower nozzle, a key input unit for inputting one of a lower nozzle washing course and a upper nozzle washing course, and a control unit for controlling an operation of the dishwasher according to a washing course inputted through the key input unit. When the upper nozzle washing course is selected through the key input unit, the control unit controls the dishwasher such that the lower nozzle washing course is performed for a predetermined time period.

摘要翻译： 提供洗碗机。 洗碗机包括限定洗涤室的桶，形成在管中的下喷嘴以喷射洗涤喷嘴，形成在下喷嘴上方的管中的上喷嘴，用于输入下喷嘴清洗进程和上部喷嘴之一的键输入单元 喷嘴清洗过程，以及控制单元，用于根据通过键输入单元输入的清洗过程来控制洗碗机的操作。 当通过键输入单元选择上喷嘴清洗进程时，控制单元控制洗碗机，使得下喷嘴清洗进程执行预定时间段。

公开(公告)号：US06983010B1

公开(公告)日：2006-01-03

申请号：US09542042

申请日：2000-03-31

申请人： Jae-yoon Sim ,  Hong-joon Park ,  Soo-in Cho ,  Jung-bae Lee

发明人： Jae-yoon Sim ,  Hong-joon Park ,  Soo-in Cho ,  Jung-bae Lee

IPC分类号： H03H7/30

CPC分类号： G11C7/1057 ,  G11C7/1012 ,  G11C7/1051 ,  G11C7/22 ,  G11C7/222 ,  H01L27/088 ,  H04L27/01

摘要： A high frequency equalizer using a demultiplexing technique and a semiconductor device using the same are provided. The high frequency equalizer demultiplexes input data input through an input and output terminal into a plurality of input data items, each having a time difference that is the same as the period of the input data. The equalizer restores the lost high frequency data components of the plurality of demultiplexed input data items, multiplexes the restored plurality of data items, and sequentially outputs the restored data items one by one. Therefore, using this high frequency equalizer, it is possible to allow enough time to restore the lost high frequency component even though the period of the input data is reduced by an increase of the data transmission speed. Using this high frequency equalizer, it is possible to correctly restore the lost high frequency component even at a high data transmission speed. Therefore, according to the semiconductor device including the high frequency equalizer, the lost high frequency component of data can be restored even at a high data transmission speed.

摘要翻译： 提供了使用解复用技术的高频均衡器和使用其的半导体器件。 高频均衡器将通过输入和输出端输入的输入数据解复用为多个输入数据项，每个具有与输入数据周期相同的时间差。 均衡器恢复多路复用输入数据项的丢失的高频数据分量，复用恢复的多个数据项，并逐个依次输出恢复的数据项。 因此，即使通过数据传输速度的增加来减少输入数据的周期，也可以使用这种高频均衡器来允许足够的时间来恢复丢失的高频分量。 使用该高频均衡器，即使在高数据传输速度下也可以正确地恢复丢失的高频分量。 因此，根据包括高频均衡器的半导体器件，即使在高数据传输速度下也可以恢复数据的丢失高频分量。