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    • 13. 发明授权
    • Digital FM receiver for recovering FM digital data frame in mobile communication system
    • 数字FM接收机用于在移动通信系统中恢复FM数字数据帧
    • US06977969B2
    • 2005-12-20
    • US09894100
    • 2001-06-28
    • Kyung-Ha LeeYoung-Jin KimSung-Joo Kim
    • Kyung-Ha LeeYoung-Jin KimSung-Joo Kim
    • H04B1/7075H04L27/06
    • H04B1/7075
    • There is provided a digital data receiver for recovering at least one message word signal from a digital data frame. The digital receiver includes a digital FM demodulator for receiving frequency modulated signals, and for demodulating a dotting sequence signal, a word sync signal and a message word signal of each sub-frame which is in digital data frame, a dotting detector for detecting a dotting sequence signal of at least one sub-frame among the signals demodulated by the digital FM demodulator, based upon a predetermined signal which is shorter than the length of each dotting sequence signal of the each sub-frame, detecting means for determining the termination of receiving of the digital data frame after the dotting detector detects the dotting sequence signal, and for detecting a new digital data frame followed by the digital data frame; and a message processor means for recovering a message word signal in the digital signal frame which is related to the dotting sequence signal detected by the dotting detector. A method for recovering at least one message word signal from a digital data frame is also disclosed.
    • 提供了一种用于从数字数据帧中恢复至少一个消息字信号的数字数据接收器。 数字接收机包括用于接收频率调制信号的数字FM解调器,用于解调数字数据帧中每个子帧的点划线信号,字同步信号和消息字信号,用于检测点数的点检测器 基于比每个子帧的每个点划线信号的长度短的预定信号,由数字FM解调器解调的信号中的至少一个子帧的序列信号,用于确定接收终止的检测装置 点号检测器检测到点号序列信号之后的数字数据帧,并且用于检测数字数据帧后面的数字数据帧; 以及消息处理器装置,用于恢复数字信号帧中与由点号检测器检测到的点划线信号相关的消息字信号。 还公开了一种从数字数据帧中恢复至少一个消息字信号的方法。
    • 14. 发明授权
    • Channel compensator for DS-CDMA receiver
    • DS-CDMA接收机的信道补偿器
    • US06577674B1
    • 2003-06-10
    • US09390117
    • 1999-09-03
    • Seok-Jun KoKyung-Ha LeeHyung-Jin Choi
    • Seok-Jun KoKyung-Ha LeeHyung-Jin Choi
    • H04B1500
    • H04L25/0214H04B1/7115H04L25/0204
    • A channel compensator for estimating and for compensating a phase change and a residual frequency offset of a despreaded signal, prior to synchronous demodulation in a DS-CDMA receiver. In the channel compensator, a first integrator accumulates input signals sampled at a given chip rate for a predetermined period and multiplies the accumulated value by a given gain. A shift register having a plurality of registers shifts the data output from the first integrator. A second integrator integrates the data generated at once from the respective registers of the shift register. A delay means delays the input signal for a predetermined time, and a multiplier multiplies the delayed input signal by an output of the second integrator in order to generate the compensated signal. The delay device delays the input signal by a time required for the input signal to reach a central register of the shift register through the first integrator. The second integrator includes a summer means for summing the values of the respective registers of the shift register at an update period of the first integrator, and a multiplier for multiplying a value output from the summer means by a reciprocal number of the number of the registers to reduce the dispersion of an estimation value due to noises, and for adjusting a bit value for detected information.
    • 信道补偿器,用于在DS-CDMA接收机中的同步解调之前估计和补偿解扩信号的相位变化和残余频率偏移。 在信道补偿器中,第一积分器以预定周期累积以给定码片速率采样的输入信号,并将累加值乘以给定增益。 具有多个寄存器的移位寄存器使从第一积分器输出的数据移位。 第二积分器将从移位寄存器的各个寄存器一次产生的数据进行积分。 延迟装置将输入信号延迟预定时间,并且乘法器将延迟的输入信号乘以第二积分器的输出,以产生补偿信号。 延迟装置将输入信号延迟输入信号所需的时间通过第一积分器到达移位寄存器的中心寄存器。 第二积分器包括用于在第一积分器的更新周期处对移位寄存器的各个寄存器的值相加的加法器,以及用于将从加法器装置输出的值乘以寄存器数目的倒数的乘法器 以减少由于噪声引起的估计值的偏差,并且用于调整检测信息的位值。
    • 15. 发明授权
    • Thin film transistor and method for fabricating the same
    • 薄膜晶体管及其制造方法
    • US6100119A
    • 2000-08-08
    • US57538
    • 1998-04-09
    • Jin JangKyung-Ha LeeYou-Chan Chung
    • Jin JangKyung-Ha LeeYou-Chan Chung
    • H01L29/49H01L21/336H01L21/84
    • H01L29/4908
    • A thin film transistor includes an insulating substrate; a polysilicon pattern formed on the insulating substrate; a first nitride layer disposed on a channel portion of the polysilicon pattern; heavily doped semiconductor layer regions disposed in upper portions of the polysilicon pattern on sides of the first nitride layer pattern; an interlevel insulating layer disposed on the insulating substrate, the polysilicon pattern, the first nitride layer and the heavily doped semiconductor layer regions, the interlevel insulating layer having a contact hole to expose a portion of the heavily doped semiconductor layer; source and drain electrodes connected to the heavily doped semiconductor layer regions through the contact hole; and a gate electrode formed on the interlevel insulating layer disposed on the first nitride layer.
    • 薄膜晶体管包括绝缘基板; 形成在所述绝缘基板上的多晶硅图案; 设置在所述多晶硅图案的沟道部分上的第一氮化物层; 在第一氮化物层图案的侧面上设置在多晶硅图案的上部的重掺杂半导体层区域; 设置在所述绝缘基板上的层间绝缘层,所述多晶硅图案,所述第一氮化物层和所述重掺杂半导体层区域,所述层间绝缘层具有用于暴露所述重掺杂半导体层的一部分的接触孔; 源极和漏极通过接触孔连接到重掺杂半导体层区域; 以及形成在设置在第一氮化物层上的层间绝缘层上的栅电极。
    • 17. 发明授权
    • Apparatus and method for receiving digital multimedia broadcasting without image discontinuity during channel switching
    • 用于在频道切换期间接收无图像不连续的数字多媒体广播的装置和方法
    • US08228441B2
    • 2012-07-24
    • US11185043
    • 2005-07-20
    • Kyung-Eun LeeKyung-Ha Lee
    • Kyung-Eun LeeKyung-Ha Lee
    • H04N5/50H04L27/06
    • H04H20/26H04H60/27H04N5/4401H04N5/50H04N21/4348H04N21/4383H04N21/44004H04N21/4882
    • An apparatus and a method capable of receiving digital broadcasting without image discontinuity during channel switching. A digital multimedia broadcasting receiver buffers a previous channel while a new channel is buffered in a deinterleaver, thereby preventing image discontinuity during channel switching. The digital broadcasting receiver receives and deinterleaves broadcast data of a channel to be changed and stores the deinterleaved broadcast data in a buffer when a broadcast channel change is requested. The digital broadcasting receiver outputs and displays broadcast data of an initial channel stored in the buffer and stops output of the broadcast data of the initial channel and outputs the broadcast data of the channel to be changed, when the broadcast data of the channel to be changed are stored in the buffer by a predetermined buffering size.
    • 一种在频道切换期间能够接收无图像不连续的数字广播的装置和方法。 数字多媒体广播接收机缓存先前的信道,同时在解交织器中缓存新信道,从而防止信道切换期间的图像不连续性。 数字广播接收机接收并解交织要改变的频道的广播数据,并且当请求广播频道改变时将解交织的广播数据存储在缓冲器中。 数字广播接收机输出并显示存储在缓冲器中的初始信道的广播数据,并且当要改变的频道的广播数据时,停止输出初始信道的广播数据并输出要改变的频道的广播数据 以预定的缓冲大小存储在缓冲器中。
    • 18. 发明授权
    • Apparatus and method for selecting an antenna in a digital broadcast receiving terminal
    • 用于在数字广播接收终端中选择天线的装置和方法
    • US07747233B2
    • 2010-06-29
    • US11257167
    • 2005-10-24
    • Kyung-Ha LeeByung-Duck Cho
    • Kyung-Ha LeeByung-Duck Cho
    • H04B17/02H04B17/00H04B1/06H04B7/00
    • H04B7/0808H04B7/0825H04B17/23H04B17/336Y02D70/444
    • An apparatus and method for supplying information so that power consumption in a digital broadcast receiving terminal can be reduced and a user can use an appropriate antenna depending on a situation. The digital broadcast receiving terminal includes an external antenna detachably assembled with the outside of the terminal a switch unit for selecting any one among the internal antennas and the external antenna, and a signal-receiving condition sensing unit capable of sensing the signal-receiving condition of the internal antennas and the external antenna. If it is impossible to receive the digital broadcast signal by using the internal antennas, the external antenna is used. If the external antenna is mounted, power is supplied only to an RF unit connected to the external antenna and the power supply to the remaining RF unit is cut off, reducing power consumption.
    • 一种用于提供信息的装置和方法,使得可以减少数字广播接收终端的功耗,并且用户可以根据情况使用适当的天线。 数字广播接收终端包括可拆卸地与终端外部组装的外部天线,用于选择内部天线和外部天线中的任何一个的开关单元,以及能够感测信号接收状态的信号接收条件感测单元 内部天线和外部天线。 如果不可能通过使用内部天线接收数字广播信号,则使用外部天线。 如果安装了外部天线,则仅向连接到外部天线的RF单元提供电源,并将其余RF单元的电源切断,从而降低功耗。
    • 19. 发明授权
    • Digital frequency modulator
    • 数字调频器
    • US07336721B2
    • 2008-02-26
    • US10320182
    • 2002-12-16
    • Kyung-Ha LeeSoo-Bok Yeo
    • Kyung-Ha LeeSoo-Bok Yeo
    • H04L27/00
    • H03C3/40
    • A digital frequency modulator is disclosed. In the digital frequency modulator, a first gain controller multiplies an input digital signal by a first gain determined according to a required modulation frequency, a phase accumulator accumulates the input digital signal and generates a phase accumulation according to a required phase resolution to output the phase accumulation within a predetermined output range. A second gain controller multiplies the output of the phase accumulator by a second gain determined according to the required modulation frequency and the first gain. A phase modulator outputs cosine and sine values having a phase corresponding to the second-gain controlled signal.
    • 公开了一种数字频率调制器。 在数字频率调制器中,第一增益控制器将输入数字信号乘以根据所需调制频率确定的第一增益,相位累加器累积输入数字信号,并根据所需相位分辨率产生相位积累,以输出相位 累积在预定的输出范围内。 第二增益控制器将相位累加器的输出乘以根据所需调制频率和第一增益确定的第二增益。 相位调制器输出具有对应于第二增益受控信号的相位的余弦和正弦值。