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    • 4. 发明授权
    • Apparatus for sequentially enabling and disabling multiple powers
    • 用于顺序启用和禁用多个功率的装置
    • US07464275B2
    • 2008-12-09
    • US11213059
    • 2005-08-26
    • Tae Young LimHan Jin ChoSoon Il YeoIg Kyun KimKyoung Seon ShinHee Bum Jung
    • Tae Young LimHan Jin ChoSoon Il YeoIg Kyun KimKyoung Seon ShinHee Bum Jung
    • G06F1/26
    • G06F1/26
    • Provided is an apparatus for controlling multiple powers which is capable of turning on and off the multiple powers in their priorities for systems or components to be supplied with the multiple powers such as a liquid crystal display (LCD) module. In the apparatus for controlling multiple powers, an on-signal of high level is applied to an input terminal, and an output of a control signal generating unit is sequentially changed to a high level whenever a clock is applied to a clock signal input terminal by one period, so that outputs of the multiple powers are sequentially output. In addition, an off signal of low level is applied to the input terminal, and an output of the control signal generating unit is changed to a low level in a reversal order whenever a clock is applied to the clock signal input terminal by one period, so that outputs of the multiple powers are interrupted in the reversal order.
    • 本发明提供了一种用于控制多个功率的装置,其能够在要提供给诸如液晶显示器(LCD)模块的多个功率的系统或组件的优先级中打开和关闭多个功率。 在用于控制多个功率的装置中,将高电平的接通信号施加到输入端,并且每当时钟被施加到时钟信号输入端时,控制信号产生单元的输出被顺序地改变为高电平 一个周期,从而顺序输出多个功率的输出。 此外,只要将时钟施加到时钟信号输入端子一个周期,则将低电平的关闭信号施加到输入端子,并且控制信号产生单元的输出以反转次序改变为低电平, 使得多个功率的输出以反转顺序中断。
    • 7. 发明申请
    • Wireless modem, modulator, and demodulator
    • 无线调制解调器,调制器和解调器
    • US20070237246A1
    • 2007-10-11
    • US11496897
    • 2006-08-01
    • In Gi LimHyung Il ParkYoung Seok BaekHyuk KimTae Joon KimKyung Soo KimIk Soo EoHee Bum Jung
    • In Gi LimHyung Il ParkYoung Seok BaekHyuk KimTae Joon KimKyung Soo KimIk Soo EoHee Bum Jung
    • H04K1/10
    • H04L27/2662H04L1/0041H04L1/0045H04L1/0071H04L5/06H04L27/2657
    • A wireless modem is mounted to a terminal for wireless communication, and specifically controls an internal drive clock to reduce power consumption in an active mode. The wireless modem includes: a wireless core module for transmitting and receiving a radio signal; a modulator for converting data to be transmitted into a wireless transmission signal and transmitting the converted signal to the wireless core module; a demodulator for converting the signal received from the wireless core module into reception data; a synchronizer for synchronizing the signal received from the wireless core module; and a clock controller for generating a drive clock of each of the modulator, the demodulator, and the synchronizer. A low power clock controller is divided into six main functional blocks of a synchronizer, an analog controller, a modulator, a channel decoder, a demodulator, and a channel encoder, and has a feature that a clock is input only when a main functional block operates. As a result, it is possible to minimize power consumption caused by clock switching when an Orthogonal Frequency Division Multiplexing Access (OFDMA) mobile station modem operates in an active mode through the clock controller.
    • 无线调制解调器被安装到用于无线通信的终端,并且具体地控制内部驱动时钟以降低活动模式中的功耗。 无线调制解调器包括:用于发送和接收无线电信号的无线核心模块; 用于将要发送的数据转换成无线发送信号并将转换的信号发送到无线核心模块的调制器; 解调器,用于将从无线核心模块接收的信号转换为接收数据; 用于使从所述无线核心模块接收的信号同步的同步器; 以及时钟控制器,用于产生调制器,解调器和同步器中的每一个的驱动时钟。 低功率时钟控制器被分为同步器,模拟控制器,调制器,信道解码器,解调器和信道编码器的六个主要功能块,并且具有仅当主功能块 操作。 结果,当正交频分复用接入(OFDMA)移动台调制解调器通过时钟控制器以活动模式操作时,可以最小化由时钟切换引起的功率消耗。
    • 8. 发明申请
    • Method for blind channel estimation
    • 盲信道估计方法
    • US20070133700A1
    • 2007-06-14
    • US11634276
    • 2006-12-05
    • Tae Joon KimIk Soo EoHee Bum Jung
    • Tae Joon KimIk Soo EoHee Bum Jung
    • H04K1/10H04B1/10
    • H04L25/0238H04L25/0212H04L25/0248
    • Provided is a method for channel estimation increasing frequency band efficiency lost by using a pilot, and reducing sensitivity to channel zero, instability, and complexity. The method includes the steps of: (a) generating an i-th symbol block Si including N carriers; (b) performing an inverse fast Fourier transform (IFFT) operation on the i-th symbol block and forming an orthogonal frequency division multiplexing (OFDM) symbol block; (c) attaching a guard interval sample in front of the i-th OFDM symbol block Ui and forming at least one OFDM symbol block Ui,cp; and (d) modeling the formed OFDM symbol block Ui,cp with a channel finite impulse response (FIR) filter h and noise v and estimating channel impulse response using signals yi received through a channel.
    • 提供了一种用于信道估计的方法,其通过使用导频来增加频带效率损失,并降低对信道零的灵敏度,不稳定性和复杂性。 该方法包括以下步骤:(a)产生包括N个载波的第i个符号块S i i; (b)对第i个符号块执行快速傅里叶逆变换(IFFT),形成正交频分复用(OFDM)符号块; (c)在第i个OFDM符号块U 1 i前面附加保护间隔样本,并形成至少一个OFDM符号块U i,c p; 以及(d)利用信道有限脉冲响应(FIR)滤波器h和噪声v对所形成的OFDM符号块U i,c p进行建模,并使用通过信道接收的信号y i来估计信道脉冲响应。
    • 9. 发明授权
    • Adaptive loop gain control circuit for voltage controlled oscillator
    • 用于压控振荡器的自适应环路增益控制电路
    • US06833766B2
    • 2004-12-21
    • US10410829
    • 2003-04-09
    • Kwi-dong KimJong-kee KwonHee-bum JungKyung-soo Kim
    • Kwi-dong KimJong-kee KwonHee-bum JungKyung-soo Kim
    • H03L700
    • H03L1/00H03L7/0995
    • There is provided an adaptive loop gain control circuit for a voltage-controlled oscillator (VCO). The adaptive loop gain control circuit for a voltage-controlled oscillator (VCO) includes a detected voltage generating unit which generates a detected voltage signal according to changes in an operating voltage and an operating temperature, and a control circuit unit which outputs an oscillation control current signal according to the detected voltage signal and an input control voltage signal. The adaptive loop gain control circuit for a voltage-controlled oscillator (VCO) compensates for an oscillation control current according to changes in operating voltage and temperature and compensates for the gain of a phase locked loop (PLL) system, thereby ensuring high operating stability in the PLL circuit.
    • 提供了一种用于压控振荡器(VCO)的自适应环路增益控制电路。 用于压控振荡器(VCO)的自适应环路增益控制电路包括:检测电压产生单元,其根据工作电压和工作温度的变化产生检测的电压信号;以及控制电路单元,其输出振荡控制电流 信号根据检测到的电压信号和输入控制电压信号。 用于压控振荡器(VCO)的自适应环路增益控制电路根据工作电压和温度的变化补偿振荡控制电流,并补偿锁相环(PLL)系统的增益,从而确保在 PLL电路。
    • 10. 发明授权
    • Low offset automatic frequency tuning circuits for continuous-time filter
    • 低偏移自动频率调谐电路,用于连续时间滤波
    • US06400932B1
    • 2002-06-04
    • US09454389
    • 1999-12-03
    • Chang Jun OhJong Kee KwonJong Ryul LeeWon Chul SongHee Bum JungKyung Soo KimHan Jin ChoOok Kim
    • Chang Jun OhJong Kee KwonJong Ryul LeeWon Chul SongHee Bum JungKyung Soo KimHan Jin ChoOok Kim
    • H04B118
    • H03H11/0422H03L7/06
    • The present invention relates to a tuning circuit, more specifically to a tuning circuit for continuous-time filter capable of making exact the Gm value to minimize the variation of the cutoff frequency due to the variation of process in the Gm-C type of continuous-time filter. According to the invention, a frequency tuning circuit is provided which comprises integrating means for generating a signal discharging from a first reference voltage to a first predetermined value and a signal charging from a second reference voltage to a second predetermined value; offset sampling means for sampling the offset voltages of the Gm cells by receiving a current multiplied by the offset voltages from the Gm cells included in the integrating means and providing a feedback path between the output nodes and the input nodes of the included Gm cells; comparative signal generating means for generating a comparative signal by generating a reference signal by dividing a clock inputted from the external, receiving the signal discharging from the first reference voltage to the first predetermined value and the signal charging from the second reference voltage to the second predetermined value from the integrating means, and comparing the actual intersection and the target intersection of these signals; and control means for generating a control signal to regulate the Gm values of the integrating means and the offset sampling means by receiving the reference signal and the comparative signal from the comparative signal generating means and detecting the phase differences therebetween.
    • 调谐电路技术领域本发明涉及一种调谐电路,更具体地说涉及一种用于连续时间滤波器的调谐电路,其能够精确地确定Gm值,以使由于Gm-C型连续时间滤波器中的工艺变化引起的截止频率的变化最小化, 时间过滤器。 根据本发明,提供了一种频率调谐电路,其包括用于产生从第一参考电压放电到第一预定值的信号的积分装置和从第二参考电压到第二预定值的信号充电; 偏移采样装置,用于通过接收与积分装置中包括的Gm单元的偏移电压相乘的电流来对Gm单元的偏移电压进行采样,并在输出节点和所包括的Gm单元的输入节点之间提供反馈路径; 比较信号发生装置,用于通过将从外部输入的时钟分频,将从第一参考电压放电的信号接收到第一预定值和从第二参考电压到第二预定值的信号充电来产生参考信号, 从积分装置获取值,并比较这些信号的实际交点和目标交点; 以及控制装置,用于通过从比较信号发生装置接收参考信号和比较信号并检测它们之间的相位差,产生控制信号以调节积分装置和偏移采样装置的Gm值。