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11. 外观设计

USD636506S1 Head lamp for automobiles 有权
标题翻译：汽车头灯
公开(公告)号：USD636506S1
公开(公告)日：2011-04-19
申请号：US29362675
申请日：2010-05-28
申请人： Chi-Young Kim , Ji-Won Ha
设计人： Chi-Young Kim , Ji-Won Ha

12. 发明授权

US07872690B2 Apparatus and method for improving channel change speed in digital broadcasting reception terminal 有权
标题翻译：数字广播接收终端提高频道切换速度的装置及方法
公开(公告)号：US07872690B2
公开(公告)日：2011-01-18
申请号：US11588579
申请日：2006-10-27
申请人： Ji-Won Ha
发明人： Ji-Won Ha
IPC分类号： H04N5/50 , H04N5/44
CPC分类号： H04N5/50 , H04N5/4401 , H04N21/434 , H04N21/4348 , H04N21/4384 , H04N21/64315
摘要： Disclosed are an apparatus and a method for decreasing a channel change time in a digital broadcasting reception terminal. Starting time information of at least one non-reference channel is selected. When the user selects a non-reference channel, broadcast data thereof is received by using the collected starting time information. The apparatus extracts time offset values between a starting time of a current reference channel and that of each at least one non-reference channel, and then obtains the starting time of each non-reference channel by using the extracted time offset values. When a channel change is performed, the starting time of the non-reference channel is established to receive broadcast data based on the starting time according to a corresponding time offset value. Hence, a time period required for a channel change is significantly reduced.
摘要翻译：公开了一种减少数字广播接收终端中的频道改变时间的装置和方法。选择至少一个非参考信道的开始时间信息。当用户选择非参考频道时，通过使用所收集的开始时间信息来接收其广播数据。该装置提取当前参考信道的起始时间和每个至少一个非参考信道的起始时间之间的时间偏移值，然后通过使用提取的时间偏移值来获得每个非参考信道的开始时间。当执行频道改变时，建立非参考频道的开始时间，以根据相应的时间偏移值根据开始时间接收广播数据。因此，频道改变所需的时间段显着减少。

13. 发明授权

US07356320B2 Apparatus and method for removing DC offset in a frequency direct-conversion device 失效
标题翻译：用于去除频率直接转换装置中的直流偏移的装置和方法
公开(公告)号：US07356320B2
公开(公告)日：2008-04-08
申请号：US11015471
申请日：2004-12-20
申请人： Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
发明人： Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
IPC分类号： H04B1/30
CPC分类号： H04B1/30
摘要： An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and calculates a difference between the digital baseband signal with the DC component and the estimated DC offset value. A DC offset calculator receives gain mode information of an analog element of the reception device, and calculates the estimated DC offset value according to the gain mode.
摘要翻译：一种用于在无线通信系统的接收装置中的频率直接转换期间去除DC偏移的装置。在该装置中，加法器接收包括DC分量的数字基带信号，接收估计的DC偏移值，并计算具有DC分量的数字基带信号与估计的DC偏移值之间的差。 DC偏移计算器接收接收装置的模拟元件的增益模式信息，并根据增益模式计算估计的DC偏移值。

14. 发明申请

US20050136874A1 Apparatus and method for removing DC offset in a frequency direct-conversion device 失效
标题翻译：用于去除频率直接转换装置中的直流偏移的装置和方法
公开(公告)号：US20050136874A1
公开(公告)日：2005-06-23
申请号：US11015471
申请日：2004-12-20
申请人： Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
发明人： Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
IPC分类号： H04L25/12 , H04B1/30 , H04B1/10
CPC分类号： H04B1/30
摘要： An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and calculates a difference between the digital baseband signal with the DC component and the estimated DC offset value. A DC offset calculator receives gain mode information of an analog element of the reception device, and calculates the estimated DC offset value according to the gain mode.
摘要翻译：一种用于在无线通信系统的接收装置中的频率直接转换期间去除DC偏移的装置。在该装置中，加法器接收包括DC分量的数字基带信号，接收估计的DC偏移值，并计算具有DC分量的数字基带信号与估计的DC偏移值之间的差。 DC偏移计算器接收接收装置的模拟元件的增益模式信息，并根据增益模式计算估计的DC偏移值。

15. 发明授权

US07376095B2 Apparatus and method for measuring a received signal to interference ratio in a mobile communication system 失效
标题翻译：用于在移动通信系统中测量接收信号干扰比的装置和方法
公开(公告)号：US07376095B2
公开(公告)日：2008-05-20
申请号：US10225652
申请日：2002-08-21
申请人： Sang-Min Bae , Ji-Won Ha , Jin-Woo Heo , Jong-Han Kim
发明人： Sang-Min Bae , Ji-Won Ha , Jin-Woo Heo , Jong-Han Kim
IPC分类号： H04B7/216
CPC分类号： H04B7/022 , H04B1/7117 , H04B17/336 , H04B2201/70701
摘要： An apparatus and method for measuring an SIR in a CDMA mobile communication system. The SIRs and power of PICHs and the power of PDCHs are measured sequentially for a plurality of active set base stations. An active set base station having the highest signal strength is selected according to the measurements. Thus a data rate is determined adaptively to the SIR for efficient high rate packet data transmission.
摘要翻译：一种用于测量CDMA移动通信系统中的SIR的装置和方法。对于多个有源集合基站，顺序地测量PICH的SIR和功率以及PDCH的功率。根据测量选择具有最高信号强度的有源集合基站。因此，为了有效的高速率分组数据传输，自适应地确定数据速率。

16. 发明授权

US07170923B2 Apparatus and method for detecting discontinuous transmission period in a CDMA mobile communication system 有权
标题翻译：用于在CDMA移动通信系统中检测不连续传输周期的装置和方法
公开(公告)号：US07170923B2
公开(公告)日：2007-01-30
申请号：US10338714
申请日：2003-01-09
申请人： Soo-Bok Yeo , Sang-Min Bae , Ji-Won Ha , Jong-Han Kim
发明人： Soo-Bok Yeo , Sang-Min Bae , Ji-Won Ha , Jong-Han Kim
IPC分类号： H04B1/69 , H04B7/00 , H04B7/216
CPC分类号： H04L1/20 , H04B1/70755 , H04B2201/70709 , H04L1/201
摘要： An apparatus for detecting a frame transmission period in a CDMA mobile communication system supporting a discontinuous transmission mode. A first frame detector performs primary frame detection by calculating a signal-to-interference ratio (SIR) using traffic symbol energy, pilot symbol energy and noise energy measured for a predetermined time period, and comparing the SIR with a predetermined frame detection threshold value. A decoder calculates a symbol error rate (SER) by decoding symbols received for the predetermined time period. A second frame detector selects an SER threshold value according to frame detection information from the first frame detector, and compares the selected SER threshold value with the SER to determine whether a frame has been transmitted.
摘要翻译：一种在支持不连续传输模式的CDMA移动通信系统中检测帧传输周期的装置。第一帧检测器通过使用在预定时间段内测量的业务符号能量，导频符号能量和噪声能量，并将SIR与预定帧检测阈值进行比较来计算信号干扰比（SIR）来执行主帧检测。解码器通过解码在预定时间段内接收到的符号来计算符号错误率（SER）。第二帧检测器根据来自第一帧检测器的帧检测信息选择SER阈值，并将所选择的SER阈值与SER进行比较，以确定帧是否已被发送。

17. 发明授权

US06801566B2 Forward power control apparatus and method for use in a multi-carrier communication system 有权
标题翻译：用于多载波通信系统的前向功率控制装置和方法
公开(公告)号：US06801566B2
公开(公告)日：2004-10-05
申请号：US09753118
申请日：2001-01-02
申请人： Ji-Won Ha
发明人： Ji-Won Ha
IPC分类号： H04B169
CPC分类号： H04W52/24 , H04B1/1027 , H04B1/7097
摘要： A mobile station of the mobile communication system measures signal energy on a traffic channel and interference energy on a sync channel to calculate SIR, compares the calculated SIR with a threshold, and then transmits the comparison results to a base station for a forward power control operation. To this end, a PN despreader multiplies a received signal by a unique PN code and outputs a PN despread signal. An orthogonal code despreader multiplies the PN despread signal by a sync channel orthogonal code and a traffic channel orthogonal code and outputs first and second orthogonal code despread signals. An interference energy processor measures interference energy by processing the first orthogonal code despread signal. A signal energy processor measures signal energy by processing the second orthogonal code despread signal. An SIR calculator calculates SIR depending on the measured signal energy and interference energy. The calculated SIR is compared with a predetermined threshold and the compared results are transmitted to the base station for the forward power control operation.
摘要翻译：移动通信系统的移动站测量业务信道上的信号能量和同步信道上的干扰能量来计算SIR，将计算出的SIR与阈值进行比较，然后将比较结果发送到基站进行正向功率控制操作。为此，PN解扩器将接收信号乘以唯一的PN码并输出PN解扩信号。正交码解扩器将PN解扩信号乘以同步信道正交码和业务信道正交码，并输出第一和第二正交码解扩信号。干扰能量处理器通过处理第一正交码去扩展信号来测量干扰能量。信号能量处理器通过处理第二正交码去扩展信号来测量信号能量。 SIR计算器根据测量的信号能量和干扰能量来计算SIR。将所计算的SIR与预定阈值进行比较，并将所比较的结果发送到用于正向功率控制操作的基站。

18. 发明授权

US06718165B1 Apparatus and method for reducing nonlinear distortion in an automatic gain control system 有权
标题翻译：用于减少自动增益控制系统中的非线性失真的装置和方法
公开(公告)号：US06718165B1
公开(公告)日：2004-04-06
申请号：US09698446
申请日：2000-10-27
申请人： Ji-Won Ha
发明人： Ji-Won Ha
IPC分类号： H04B102
CPC分类号： H03G3/3042 , H03G3/3052 , H04B1/0475
摘要： A mobile communication system having an AGC (Automatic Gain Control) function includes an apparatus for adaptively controlling an output level of a local oscillator to reduce nonlinear distortion which may occur when a high-power RF signal is received or when it is necessary to transmit a high-power transmission signal. When a high-power RF signal is applied to a first stage in a receiving stage, the apparatus prevents the signal input to a reception AGC loop from being distorted by decreasing an output level of the local oscillator, which is provided to a down-converter. Further, when the output signal of a transmission stage has a high power level, the apparatus decreases the output level of a transmission AGC amplifier and instead increases the output level of the local oscillator, which is input to an up-converter located in an IF stage, so that it is possible to obtain a nonlinear distortion-reduced signal while obtaining the same output level.
摘要翻译：具有AGC（Automatic Gain Control，自动增益控制）功能的移动通信系统包括用于自适应地控制本地振荡器的输出电平的装置，以减少当接收到高功率RF信号时或者当需要发送高功率RF信号时可能发生的非线性失真大功率传输信号。当在接收级中将高功率RF信号施加到第一级时，该装置通过减小提供给下变频器的本地振荡器的输出电平来防止对接收AGC环路的信号输入失真。此外，当发送级的输出信号具有高功率电平时，该装置降低发送AGC放大器的输出电平，并且改为增加输入到位于IF中的上变频器的本地振荡器的输出电平使得可以在获得相同的输出电平的同时获得非线性失真减小信号。

19. 发明授权

US06205189B1 Digital automatic gain control method and device for use in communication terminal of mobile radio communication system 失效
标题翻译：数字自动增益控制方法和装置，用于移动无线电通信系统的通信终端
公开(公告)号：US06205189B1
公开(公告)日：2001-03-20
申请号：US08929470
申请日：1997-09-15
申请人： Ji-Won Ha
发明人： Ji-Won Ha
IPC分类号： H04L2708
CPC分类号： H04W52/60 , H04W52/52
摘要： A digital automatic gain control device for use in a communication terminal of a mobile radio communication system employing a time-division duplex (TDD) transmission. A transmission power amplifier and a reception amplifier, which constitute the communication terminal, are fully composed of digital elements. In a transmission mode, a reception data latch is cleared to turn off the reception amplifier, so as to prevent a distortion of a modulated transmission signal due to regeneration and coupling of a modulated transmission waveform generated from a receiver. On the contrary, in a reception mode, a transmission data latch is cleared to prevent the carrier generated from the transmitter from being leaked toward a receiver, thereby preventing deterioration of a reception sensitivity of the receiver. Therefore, the transmission and reception gain can be accurately controlled based on the accurate timing control by the control processor.
摘要翻译：一种用于采用时分双工（TDD）传输的移动无线电通信系统的通信终端中的数字自动增益控制装置。构成通信终端的发送功率放大器和接收放大器由数字元件完全构成。在发送模式中，接收数据锁存器被清除以关闭接收放大器，以便防止由于从接收器产生的调制的发送波形的再生和耦合而调制的发送信号的失真。相反，在接收模式下，清除发送数据锁存器，以防止从发送器产生的载波朝向接收机泄漏，从而防止接收机的接收灵敏度的恶化。因此，可以基于控制处理器的精确的定时控制来精确地控制发送和接收增益。

20. 外观设计

USD635700S1 Rear combination lamp for automobiles 有权
公开(公告)号：USD635700S1
公开(公告)日：2011-04-05
申请号：US29362671
申请日：2010-05-28
申请人： Chi-Young Kim , Ji-Won Ha
设计人： Chi-Young Kim , Ji-Won Ha

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