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1. 发明授权

US07280468B2 Apparatus for constant amplitude coded bi-orthogonal demodulation 有权
标题翻译：用于恒幅编码双正交解调的装置
公开(公告)号：US07280468B2
公开(公告)日：2007-10-09
申请号：US10649647
申请日：2003-08-28
申请人： Sung-Jin Kang , Jin-Woong Cho , Cheol-Hee Park , Min-Chul Ju , Dae-Ki Hong , Kyeung-Hak Seo , Myoung-Jin Kim
发明人： Sung-Jin Kang , Jin-Woong Cho , Cheol-Hee Park , Min-Chul Ju , Dae-Ki Hong , Kyeung-Hak Seo , Myoung-Jin Kim
IPC分类号： H04J11/00
CPC分类号： H04J13/004 , H04J13/0077 , H04L1/0041 , H04L1/0061
摘要： A constant amplitude coded bi-orthogonal demodulator demodulates the received constant amplitude bi-orthogonal modulated data, cancels the parity bits to generate the serial data, detects the occurrence of an error by dividing the demodulated data into a plurality of groups of data, outputs the serial data as demodulated data if an error does not occur, sequentially converts bit polarities of data of groups in which an error occurs if the error detector detects the error, compares distances between the received bi-orthogonal modulated data and the constant amplitude coded bi-orthogonal modulated data, and selects, as demodulated data, data of which corresponding bit polarities are changed according to the comparison results.According to the present invention, power consumption is reduced, a power amplifier can be manufactured at an inexpensive cost, interference robustness can be ensured, and data can be transmitted at a high transmission rate and a variable transmission rate.
摘要翻译：一个恒定幅度编码的双正交解调器对接收到的恒幅双正交调制数据进行解调，取消奇偶校验位以产生串行数据，通过将解调数据分成多组数据来检测出错，作为解调数据的串行数据如果不发生错误，则顺序地转换误差检测器检测到错误时发生错误的组的数据的位极性，比较接收到的双正交调制数据与恒幅编码的双向正交调制数据之间的距离，正交调制数据，并根据比较结果选择相应位极性改变的数据作为解调数据。根据本发明，能够降低能耗，能够以廉价的成本制造功率放大器，能够确保干扰稳定性，能够以高传输速度和可变传输速率传输数据。

2. 发明授权

US07079516B2 Adaptive frequency hopping apparatus in wireless personal area network system 失效
标题翻译：无线个域网自适应跳频装置
公开(公告)号：US07079516B2
公开(公告)日：2006-07-18
申请号：US10083119
申请日：2002-02-27
申请人： Young-Hwan You , Cheol-Hee Park , Min-Chul Ju , Kee-Hyun Park , Jin-Woong Cho
发明人： Young-Hwan You , Cheol-Hee Park , Min-Chul Ju , Kee-Hyun Park , Jin-Woong Cho
IPC分类号： H04B7/212
CPC分类号： H04B1/715 , H04B1/7143 , H04B2001/7154
摘要： The present invention relates to an adaptive frequency hopping apparatus in a wireless personal area network (WPAN) system, wherein predetermined packets of data can be correctly transmitted by estimating the channel qualities of operating bands in advance and transmitting the packets through a proper band.
摘要翻译：本发明涉及一种无线个域网（WPAN）系统中的自适应跳频装置，其中通过预先估计工作频带的信道质量并通过适当的频带发送分组，可以正确地发送预定的数据分组。

3. 发明授权

US06751273B1 Apparatus for compensating a channel distortion in a bluetooth system 失效
标题翻译：用于补偿蓝牙系统中的信道失真的装置
公开(公告)号：US06751273B1
公开(公告)日：2004-06-15
申请号：US09643086
申请日：2000-08-21
申请人： Cheol-Hee Park , Jong Ho Paik , Young Hwan You , Min-Chul Ju , Jin-Woong Cho
发明人： Cheol-Hee Park , Jong Ho Paik , Young Hwan You , Min-Chul Ju , Jin-Woong Cho
IPC分类号： H04B110
CPC分类号： H04B1/715 , H04B1/62 , H04L25/0224
摘要： An apparatus for compensating a channel distortion in a Bluetooth system to process a received signal having access codes comprises a multiplier for multiplying the received signal by a previously obtained channel distortion compensation signal to thereby provide a multiplied signal; a demodulator for demodulating access codes of the multiplied signal to thereby output demodulated received access codes as a demodulated signal; a correlation detection circuit for detecting correlation values between the demodulated received access codes and the access codes of the received signal previously stored therein to detect a start point of the received signal, thereby providing detected access codes having corresponding correlation values greater than a predetermined threshold and providing an enable signal if there are one or more correlation values greater than the predetermined threshold; and a channel distortion compensation circuit for performing a channel distortion compensation based on the detected access codes and a reference signal obtained by re-modulating the access codes of the received signal in response to the enable signal to thereby provide a channel distortion compensation signal.
摘要翻译：用于补偿蓝牙系统中的信道失真以处理具有接入码的接收信号的装置包括乘法器，用于将接收信号乘以先前获得的信道失真补偿信号，从而提供相乘的信号; 解调器，用于解调相乘信号的存取码，从而输出解调的接收的接入码作为解调信号; 相关检测电路，用于检测解调的接收接入码与先前存储在其中的接收信号的接入码之间的相关值，以检测接收信号的起始点，从而提供具有大于预定阈值的相应相关值的检测到的接入码，如果存在大于所述预定阈值的一个或多个相关值，则提供使能信号; 以及信道失真补偿电路，用于根据检测到的接入码和通过响应于使能信号重新调制接收信号的接入码而获得的参考信号来执行信道失真补偿，从而提供信道失真补偿信号。

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