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    SINGLE SIDEBAND MIXER AND METHOD OF EXTRACTING SINGLE SIDEBAND SIGNAL
    3.
    发明申请
    SINGLE SIDEBAND MIXER AND METHOD OF EXTRACTING SINGLE SIDEBAND SIGNAL 失效
    单边带混合器及提取单边信号的方法

    公开(公告)号：US20070161363A1

    公开(公告)日：2007-07-12

    申请号：US11688547

    申请日：2007-03-20

    申请人： Young-jin Kim ,  Hae-moon Seo

    发明人： Young-jin Kim ,  Hae-moon Seo

    IPC分类号： H04B1/68 ,  H04B1/26

    CPC分类号： H03C1/60 ,  H03D7/161

    摘要： Single sideband (SSB) mixers and methods of extracting a SSB signal, which are capable of outputting a single frequency using a plurality of mixers and a local oscillating frequency without having to implement phase-shifting. In one embodiment, a single sideband (SSB) mixer comprises a first mixer and a second mixer, wherein the first and second mixers multiply an input IF (intermediate frequency) signal by a local IF signal having the same frequency of the input IF signal; a band-pass filter which passes upper sideband signal output from the first mixer; a third mixer which multiplies the upper sideband signals output from the band-pass filter by a LO (local oscillating) signal; a fourth mixer which multiplies the signals output from the second mixer by the LO signal; and a subtraction device that subtracts output signals of the third mixer from output signals of the fourth mixer. Accordingly, a quadrature local oscillator which displaces a phase of a local oscillating signal by 90° at a high frequency is not required. Also, since the SSB mixer applies the same local oscillating frequency signal to each mixer, the rejection characteristics against undesired signals can be achieved to a level of about 70 dB, experimentally.

    摘要翻译： 单边带（SSB）混合器和提取SSB信号的方法，其能够使用多个混频器和本地振荡频率输出单个频率，而不必执行相移。 在一个实施例中，单边带（SSB）混频器包括第一混频器和第二混频器，其中第一和第二混频器将输入IF（中频）信号乘以具有相同输入IF信号频率的本地IF信号; 带通滤波器，其通过从第一混频器输出的上边带信号; 第三混频器，其将从带通滤波器输出的上边带信号乘以LO（本地振荡）信号; 第四混频器，将从第二混频器输出的信号乘以LO信号; 以及从第四混频器的输出信号中减去第三混频器的输出信号的减法装置。 因此，不需要以高频将本地振荡信号的相位移位90°的正交本地振荡器。 此外，由于SSB混频器将相同的本地振荡频率信号施加到每个混频器，所以通过实验可以将针对不期望信号的抑制特性达到约70dB的水平。

    Apparatus and method for receiving RF signal free of 1/f noise in radio communication system
    5.
    发明授权
    Apparatus and method for receiving RF signal free of 1/f noise in radio communication system 失效
    用于在无线电通信系统中接收没有1 / f噪声的RF信号的装置和方法

    公开(公告)号：US07224750B2

    公开(公告)日：2007-05-29

    申请号：US10461264

    申请日：2003-06-13

    申请人： Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

    发明人： Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

    IPC分类号： H03K9/00

    CPC分类号： H03D7/163

    摘要： An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and extracting a RF input signal having a desired frequency; a mixing unit for mixing the RF input signal provided from the pre-processing unit with a local oscillation signal having the same frequency as the RF input signal and generating a desired baseband signal; a noise-free-signal amplifying unit for shifting the desired baseband signal to a band that is free of effects due to 1/f noise, amplifying the shifted baseband signal, and re-shifting the amplified signal to the baseband; and a baseband processing unit for selecting a desired channel signal from the amplified baseband signal to be provided from the noise-free-signal amplifying unit and amplifying the selected signal.

    摘要翻译： 提供了一种用于在RF通信系统中接收RF信号的装置和方法。 用于接收RF信号的装置包括预处理单元，用于对具有预定带宽的外部天线接收的信号进行带通滤波，并提取具有期望频率的RF输入信号; 混合单元，用于将从预处理单元提供的RF输入信号与具有与RF输入信号相同频率的本地振荡信号混合并产生期望的基带信号; 无噪声信号放大单元，用于将期望的基带信号移位到由于1 / f噪声而无效的频带，放大经移位的基带信号，并将放大的信号重新移位到基带; 以及基带处理单元，用于从要由无噪声信号放大单元提供的放大基带信号中选择期望的信道信号，并放大所选择的信号。

    Single sideband mixer and method of extracting single sideband signal
    6.
    发明授权
    Single sideband mixer and method of extracting single sideband signal 失效
    单边带混频器及提取单边带信号的方法

    公开(公告)号：US07209721B2

    公开(公告)日：2007-04-24

    申请号：US10613439

    申请日：2003-07-03

    申请人： Young-jin Kim ,  Hae-moon Seo

    发明人： Young-jin Kim ,  Hae-moon Seo

    IPC分类号： H04B1/26

    CPC分类号： H03C1/60 ,  H03D7/161

    摘要： Single sideband (SSB) mixers and methods of extracting a SSB signal, which are capable of outputting a single frequency using a plurality of mixers and a local oscillating frequency without having to implement phase-shifting. In one embodiment, a single sideband (SSB) mixer comprises a first mixer and a second mixer, wherein the first and second mixers multiply an input IF (intermediate frequency) signal by a local IF signal having the same frequency of the input IF signal; a band-pass filter which passes upper sideband signal output from the first mixer; a third mixer which multiplies the upper sideband signals output from the band-pass filter by a LO (local oscillating) signal; a fourth mixer which multiplies the signals output from the second mixer by the LO signal; and a subtraction device that subtracts output signals of the third mixer from output signals of the fourth mixer. Accordingly, a quadrature local oscillator which displaces a phase of a local oscillating signal by 90° at a high frequency is not required. Also, since the SSB mixer applies the same local oscillating frequency signal to each mixer, the rejection characteristics against undesired signals can be achieved to a level of about 70 dB, experimentally.

    摘要翻译： 单边带（SSB）混合器和提取SSB信号的方法，其能够使用多个混频器和本地振荡频率输出单个频率，而不必执行相移。 在一个实施例中，单边带（SSB）混频器包括第一混频器和第二混频器，其中第一和第二混频器将输入IF（中频）信号乘以具有相同输入IF信号频率的本地IF信号; 带通滤波器，其通过从第一混频器输出的上边带信号; 第三混频器，其将从带通滤波器输出的上边带信号乘以LO（本地振荡）信号; 第四混频器，将从第二混频器输出的信号乘以LO信号; 以及从第四混频器的输出信号中减去第三混频器的输出信号的减法装置。 因此，不需要以高频将本地振荡信号的相位移位90°的正交本地振荡器。 此外，由于SSB混频器将相同的本地振荡频率信号施加到每个混频器，所以通过实验可以将针对不期望信号的抑制特性达到约70dB的水平。

    Apparatus and method for editing TS program information and TS recording device using the same
    7.
    发明授权
    Apparatus and method for editing TS program information and TS recording device using the same 有权
    用于编辑TS程序信息的装置和方法以及使用其的TS记录装置

    公开(公告)号：US09319736B2

    公开(公告)日：2016-04-19

    申请号：US11774174

    申请日：2007-07-06

    申请人： Young-jin Kim

    发明人： Young-jin Kim

    IPC分类号： H04N9/80 ,  H04N21/435 ,  H04N21/235 ,  H04N21/432 ,  H04N21/433 ,  H04N21/434 ,  H04N21/4385 ,  H04N21/44 ,  H04N21/475 ,  H04N21/84

    CPC分类号： H04N21/435 ,  H04N21/235 ,  H04N21/4325 ,  H04N21/4334 ,  H04N21/4348 ,  H04N21/4385 ,  H04N21/44008 ,  H04N21/4756 ,  H04N21/84

    摘要： An apparatus and method for editing transport stream (TS) program information, and a TS recording device using the same, the apparatus including: a demultiplexer that demultiplexes a TS in order to separate the TS into a video stream, an audio stream, and a program information section; a controller that generates new program information using user data obtained from the video stream separated from the TS by the demultiplexer; and a section modifier that modifies the program information section using the new program information generated by the controller. Using the apparatus and method for editing TS program information, the user data can still be used even when the user data is included in a video frame and a recorded program is reproduced at high speed. Thus, controlling the viewing of a program by rating is possible.

    摘要翻译： 一种用于编辑传输流（TS）节目信息的装置和方法，以及使用该传输流（TS）节目信息的TS记录装置，该装置包括：解复用器，用于将TS分离成视频流，音频流和 节目信息部分; 控制器，其使用从由所述解复用器从所述TS分离的视频流获得的用户数据生成新的节目信息; 以及使用由控制器生成的新程序信息修改程序信息部分的段修饰符。 使用用于编辑TS节目信息的装置和方法，即使用户数据被包括在视频帧中并且记录的节目被高速再现，仍然可以使用用户数据。 因此，通过评级控制节目的观看是可能的。

    Quadrature voltage controlled oscillator with automated phase control
    8.
    发明申请
    Quadrature voltage controlled oscillator with automated phase control 有权
    具有自动相位控制的正交压控振荡器

    公开(公告)号：US20050281356A1

    公开(公告)日：2005-12-22

    申请号：US11133787

    申请日：2005-05-20

    申请人： Young-jin Kim

    发明人： Young-jin Kim

    IPC分类号： H03B5/12 ,  H03B27/00 ,  H03D3/00 ,  H03D3/24 ,  H04L27/06

    CPC分类号： H03D3/009 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1271 ,  H03B27/00 ,  H03B2200/0078

    摘要： A quadrature voltage controlled oscillator includes oscillation circuits for generating in-phase and quadrature-phase oscillation signals that are used to generate in-phase and quadrature-phase output signals. A compensation circuit adjusts biasing in the oscillation circuits depending on a phase relationship between the in-phase and quadrature-phase output signals to automatically control the phase relationship between the oscillation signals.

    摘要翻译： 正交压控振荡器包括用于产生用于产生同相和正交相输出信号的同相和正交相位振荡信号的振荡电路。 补偿电路根据同相和正交相输出信号之间的相位关系调整振荡电路中的偏置，以自动控制振荡信号之间的相位关系。