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1. 发明授权

US06654430B1 Apparatus for receiving digital subscriber line signal having resilience to HAM radio interference and method therefor 失效
标题翻译：用于接收具有HAM无线电干扰弹性的数字用户线路信号的装置及其方法
公开(公告)号：US06654430B1
公开(公告)日：2003-11-25
申请号：US09417687
申请日：1999-10-13
申请人： Eung-sun Kim , Myeon-kyun Cho , Ki-ho Kim , Chong-dae Yim , Kyu-min Kang , Gi-hong Im
发明人： Eung-sun Kim , Myeon-kyun Cho , Ki-ho Kim , Chong-dae Yim , Kyu-min Kang , Gi-hong Im
IPC分类号： H03D104
CPC分类号： H04B1/1036
摘要： A digital subscriber line receiving apparatus having resilience to HAM radio interference noise and a method therefore includes an automatic gain controller for amplifying a received signal level to a signal level having a predetermined magnitude, a timing recoverer for recovering timing from a signal output from the automatic gain controller, an equalizer for removing interference noise from a signal received from the timing recoverer, a slicer for detecting a digital value from a signal received from the equalizer, an initialization controller for resetting the receiving apparatus and initializing the automatic gain controller, the timing recoverer, and the equalizer when the signal to noise ratio of the output signal of the equalizer is smaller than a reference signal to noise ratio, and an update controller for preventing automatic gain controller and equalizer from being initialized by the initialization controller when HAM radio interference noise is detected in the received signal.
摘要翻译：一种具有HAM无线电干扰噪声的弹性的数字用户线路接收装置，其方法包括：一个自动增益控制器，用于将接收信号电平放大到具有预定幅度的信号电平;一个定时恢复器，用于从自动增益控制器，用于从从定时恢复器接收的信号中去除干扰噪声的均衡器，用于从从均衡器接收的信号中检测数字值的限幅器，用于复位接收装置和初始化自动增益控制器的初始化控制器，并且当均衡器的输出信号的信噪比小于参考信噪比时的均衡器，以及当HAM无线电干扰时用于防止自动增益控制器和均衡器被初始化控制器初始化的更新控制器在接收到的符号中检测到噪声 al。

2. 发明授权

US06459727B1 Very high speed digital subscriber line receiver, and programmable gain amplifier and narrow-band noise remover thereof 失效
标题翻译：超高速数字用户线接收器，以及可编程增益放大器及其窄带噪声去除器
公开(公告)号：US06459727B1
公开(公告)日：2002-10-01
申请号：US09289991
申请日：1999-04-13
申请人： Myeon-kyun Cho , Eung-sun Kim
发明人： Myeon-kyun Cho , Eung-sun Kim
IPC分类号： H04B138
CPC分类号： H03G3/3052 , H03G3/3089 , H04B1/1036 , H04B3/04 , H04L27/2647
摘要： A very high digital subscriber line (VDSL) receiver, and a programmable gain amplifier (PGA) and a narrow-band noise remover thereof. The VDSL receiver includes: a first programmable gain amplifier (PGA) for controlling gain to output a signal having a predetermined amplitude and amplifying the input signal according to the controlled gain; a narrow-band noise remover for detecting the narrow-band noise from the output signal of the first PGA, modeling the narrow-band noise to remove the noise from the output signal of the first PGA if the narrow-band noise is detected, and outputting the inherent output signal of the first PGA if the narrow-band signal is not detected; a second PGA for amplifying the output signal from the narrow-band noise remover based on the gain controlled by the first PGA if narrow-band noise exists, and outputting the inherent output signal of the narrow-band noise remover without amplification if narrow-band noise is not detected; an equalizer for compensating for the deteriorated characteristics of the output signal from the second PGA; and a slicer for converting the output signal of the equalizer into a digital signal. Thus, a desired level of the input signal can be maintained against sudden inflow of an external interference signal, so that error generated by sudden change in power can be prevented. Accordingly, a VDSL system adopting the receiver can function normally regardless of inflow of a high-power signal.
摘要翻译：非常高的数字用户线（VDSL）接收机和可编程增益放大器（PGA）及其窄带噪声去除器。 VDSL接收机包括：第一可编程增益放大器（PGA），用于控制增益以输出具有预定幅度的信号，并根据受控增益放大输入信号; 窄带噪声去除器，用于从第一PGA的输出信号中检测窄带噪声，对窄带噪声进行建模，如果检测到窄带噪声，则从第一PGA的输出信号中消除噪声;以及如果未检测到窄带信号，则输出第一PGA的固有输出信号; 第二PGA，如果存在窄带噪声，则基于由第一PGA控制的增益来放大来自窄带噪声去除器的输出信号，并且如果窄带噪声去除器输出窄带噪声去除器的固有输出信号，没有检测到噪音; 均衡器，用于补偿来自第二PGA的输出信号的劣化特性; 以及用于将均衡器的输出信号转换为数字信号的限幅器。因此，可以保持输入信号的期望水平以防止外部干扰信号的突然流入，从而可以防止由突然的功率变化产生的误差。因此，采用接收机的VDSL系统可以正常工作，而不管高功率信号的流入。

3. 发明申请

US20070191065A1 Apparatus and method for communicating data in hybrid diversity mode in broadband wireless communication system 审中-公开
标题翻译：用于在宽带无线通信系统中以混合分集方式传送数据的装置和方法
公开(公告)号：US20070191065A1
公开(公告)日：2007-08-16
申请号：US11650357
申请日：2007-01-05
申请人： Jong-Hyeuk Lee , Myeon-kyun Cho , Seung-Hoon Nam , Bang-Chul Jung , Dan-Keun Sung , Sung-Soo Cho , Young-Jun Hong
发明人： Jong-Hyeuk Lee , Myeon-kyun Cho , Seung-Hoon Nam , Bang-Chul Jung , Dan-Keun Sung , Sung-Soo Cho , Young-Jun Hong
IPC分类号： H04M1/00
CPC分类号： H04L5/006 , H04L1/02 , H04L5/0007 , H04L5/0044
摘要： Provided is an apparatus and method for communicating data in a hybrid diversity mode in a broadband wireless communication system. In a method for transmitting data to a subscriber station (SS) in the broadband wireless communication system, null subbands are determined using feedback information received from the SS. TX data to be transmitted to the SS are mapped to a diversity zone from which the null subbands has been excluded. The mapped data are OFDM-modulated and transmitted to the SS. In this way, frequency subbands with poor channel conditions are excluded from data transmission. Accordingly, it is possible to enhance the FER performance and transmit data at a high MCS level.
摘要翻译：提供了一种用于在宽带无线通信系统中以混合分集模式传送数据的装置和方法。在宽带无线通信系统中向用户站（SS）发送数据的方法中，使用从SS接收的反馈信息来确定空子带。要发送到SS的TX数据被映射到已经排除了空子带的分集区域。映射的数据被OFDM调制并传输到SS。以这种方式，信道条件较差的频率子带从数据传输中排除。因此，可以提高FER性能并在高MCS级别发送数据。

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