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    • 3. 发明授权
    • Technique for configuring network interface circuit in integrated services digital network keyphone system
    • 在综合业务数字网络键盘系统中配置网络接口电路的技术
    • US06426963B1
    • 2002-07-30
    • US09033531
    • 1998-03-02
    • Jong-Il Kim
    • Jong-Il Kim
    • H04J312
    • H04Q11/0457H04Q11/0471
    • A technique for configuring a network interface circuit, capable of being commonly used in all countries or networks which have different ISDN protocols, with only one BRI trunk includes the steps of: first storing beforehand in a read only memory (ROM) of the network interface circuit all function programs for supporting an integrated services digital network protocol for each country and network which will be used by the keyphone system, selecting a function program from among the function programs stored in the ROM corresponding the country and kind of network to be operated upon initialization, and setting the selected program, as the function program to be executed.
    • 一种用于配置能够在具有不同ISDN协议的所有国家或网络中常用的仅具有一个BRI中继线的网络接口电路的技术包括以下步骤:首先存储在网络接口的只读存储器(ROM)中 电路所有功能程序,用于支持将由keyphone系统使用的每个国家和地区的综合业务数字网络协议,从存储在ROM中的功能程序中选择一个功能程序,该功能程序对应于要操作的网络的国家和种类 初始化和设置所选程序,作为要执行的功能程序。
    • 5. 发明授权
    • Adaptive echo cancellation apparatus
    • 自适应回波消除装置
    • US5359656A
    • 1994-10-25
    • US74305
    • 1993-06-09
    • Jong-Il Kim
    • Jong-Il Kim
    • H04B3/23H04M9/08H04M9/00
    • H04M9/082
    • An adaptive echo cancellation apparatus disclosed herein has three channels and a channel selection circuit. The first channel serves to block an outgoing digital signal from flowing to a transceiver. The second channel is used to directly couple the outgoing digital signal to the transceiver. The third channel serves to subtract a predicted echo signal, estimated by using the incoming digital signal, from the outgoing digital signal and to couple an error signal, representative of the difference therebetween, to the transceiver. The adaptive channel selection circuit is used to select one of the channels depending on the presence of the valid outgoing and incoming digital signals in order to effectively reduce the estimation operation. Further, the third channel is provided with a filter wherein the filter coefficients are adaptively updated by using the signs of a predetermined number of samples, thereby achieving a considerable reduction in the computational complexity.
    • 本文公开的自适应回波消除装置具有三个通道和一个通道选择电路。 第一通道用于阻止输出数字信号流向收发器。 第二个通道用于将输出数字信号直接耦合到收发器。 第三通道用于从输出数字信号中减去通过使用输入数字信号估计的预测回波信号,并将代表它们之间差异的误差信号耦合到收发器。 自适应信道选择电路用于根据有效输出和输入数字信号的存在来选择一个信道,以有效地减少估计操作。 此外,第三通道设置有滤波器,其中通过使用预定数量的采样的符号自适应地更新滤波器系数,从而实现了计算复杂度的显着降低。
    • 6. 发明授权
    • Capacitor and method for fabricating the same
    • 电容器及其制造方法
    • US08530323B2
    • 2013-09-10
    • US13415947
    • 2012-03-09
    • Jin-Youn ChoYoung-Soo KangJong-Il KimSang-Geun Koo
    • Jin-Youn ChoYoung-Soo KangJong-Il KimSang-Geun Koo
    • H01L21/02
    • H01L28/60H01L28/65H01L28/75
    • A method for fabricating a capacitor is provided. The method for fabricating a capacitor includes forming a dielectric layer over a lower electrode on a substrate, forming an upper electrode over the dielectric layer, forming a hard mask over the upper electrode, etching the hard mask to form a hard mask pattern, etching the upper electrode to make the dielectric layer remain on the lower electrode in a predetermined thickness, forming an isolation layer along an upper surface of the remaining dielectric layer and the hard mask pattern, leaving the isolation layer having a shape of a spacer on one sidewall of the hard mask pattern, the upper electrode, and the dielectric layer, and etching the lower electrode to be isolated.
    • 提供一种制造电容器的方法。 制造电容器的方法包括在基板上的下电极上形成电介质层,在电介质层上形成上电极,在上电极上形成硬掩模,蚀刻硬掩模以形成硬掩膜图案,蚀刻 使电介质层以预定的厚度保持在下电极上,沿着剩余电介质层和硬掩模图案的上表面形成隔离层,使隔离层在一个侧壁上具有间隔物的形状 硬掩模图案,上电极和电介质层,并蚀刻待分离的下电极。
    • 10. 发明授权
    • Adaptive digital audio encoding apparatus and a bit allocation method
thereof
    • 自适应数字音频编码装置及其位分配方法
    • US5537510A
    • 1996-07-16
    • US367541
    • 1994-12-30
    • Jong-Il Kim
    • Jong-Il Kim
    • H04B1/66H04H20/00H04H1/00
    • H04B1/665
    • A novel apparatus, capable of adaptively encoding an input digital audio signal, comprises a subband filtering device for receiving the input digital audio signal and filtering the received digital audio signal, on a subband-by-subband basis; a first estimator for estimating signal-to-mask ratio data, sound pressure levels and masking thresholds for the respective subbands of the digital audio signal; a second estimator for estimating perceptual entropies for the respective frames of the input digital audio signal based on the estimated signal-to-mask ratio data, sound pressure levels and masking thresholds and for deriving a mean and a standard deviation parameters for a frame group including two or more current and previous frames which corresponds to the estimated perceptual entropies; a bit allocation unit for adaptively determining bits for each of the subbands based on the estimated signal-to-mask ratio data, perceptual entropies, and mean and standard deviation parameters and for generating bit allocation information corresponding to the determined bits for each of the subbands; a quantizer for quantizing each of the filtered subbands of the digital audio signal in response to the generated bit allocation information for each of the subbands; and a formatting circuit formatting the quantized audio signal together with the generated bit allocation information.
    • 一种能够对输入数字音频信号进行自适应编码的新型装置,包括:子带滤波装置,用于接收输入的数字音频信号,并以逐个子频带为基础对接收到的数字音频信号进行滤波; 用于估计数字音频信号的各个子带的信号与掩模比数据,声压级和掩蔽阈值的第一估计器; 第二估计器,用于基于所估计的信号与掩模比数据,声压级和掩蔽阈值来估计输入数字音频信号的各个帧的感知熵,并用于导出用于帧组的平均值和标准偏差参数,包括 对应于估计的感知熵的两个或更多个当前和先前帧; 一个位分配单元,用于基于估计的信号与掩模比数据,感知熵,平均值和标准偏差参数自适应地确定每个子带的比特,并且用于生成与每个子带的所确定的比特相对应的比特分配信息 ; 量化器,用于响应于每个子带的所生成的比特分配信息量化数字音频信号的每个滤波后的子带; 以及格式化电路,将量化音频信号与生成的位分配信息一起格式化。