公开(公告)号：KR100849817B1

公开(公告)日：2008-07-31

申请号：KR1020030015714

申请日：2003-03-13

Applicant: 삼성전기주식회사

Inventor： 이진택 ,  권효석 ,  최정기

IPC: H04N7/14

Abstract: 본 발명은 TV방송 수신기능을 갖는 이동통신 단말기를 제공하는데 그 목적이 있다.
상기한 목적을 달성하기 위한 본 발명은, 동영상 송수신을 수행할 수 있는 이동통신 단말기에 있어서, TV방송 신호를 수신하는 안테나(ANT); 상기 안테나(ANT)로부터의 TV방송 신호에 포함된 복수의 채널중 채널선택신호(SCH)에 따라 원하는 채널을 선택하고, 이 선택된 채널의 주파수를 이동통신 주파수로 컨버젼 하는 TV방송 튜닝부(21); 모바일 신호 처리부(22); 베이스밴드 아날로그부(23); 키입력부(24); TV신호의 음성 및 영상의 출력을 제어하는 모바일 스테이션 모뎀부(25); 영상 표시부(26); 및 음성 출력부(27)를 구비함을 특징으로 한다.
이러한 본 발명에 의하면, 동영상을 송수신할 수 있는 IMT-2000 단말기 등의 이동통신 단말기에, TV방송 주파수를 이동통신 주파수로 업컨버젼 하고, TV방송의 채널을 선택하는 기능을 적용시킴으로서, 장소 및 시간에 구애받지 않고 기존의 TV방송을 수신하여 시청할 수 있는 효과가 있다
TV방송 수신, 이동통신 단말기, IMT-2000

公开(公告)号：KR100780192B1

公开(公告)日：2007-11-27

申请号：KR1020060096153

申请日：2006-09-29

Applicant: 삼성전기주식회사

Inventor： 최정기 ,  오승민

IPC: H03D7/18

Abstract: A frequency conversion apparatus with improved amplitude mismatching is provided to improve a signal-to-noise ratio by eliminating the amplitude mismatching of two oscillating frequency signals having a phase difference of 90 degrees. A frequency convertor(100) mixes two reference frequency signals to output an I signal and a Q signal. A comparator(200) compares amplitudes of the I and Q signals. An amplitude adjustor(300) varies the amplitudes of the I and Q signals according to the compared results. The frequency converter has an orthogonal signal generator(110) for generating first and second oscillating frequency signals and first and the second mixers(120,130) for composing the first and the second oscillating frequency signals. The orthogonal signal generator has an oscillator for outputting the first oscillating frequency signal and a phase shifter(112) for shifting a phase of the first oscillating frequency signal to output the second oscillating frequency signal.

Abstract translation: 提供了具有改善的幅度失配的频率转换装置，以通过消除具有90度的相位差的两个振荡频率信号的幅度失配来提高信噪比。 频率转换器（100）混合两个参考频率信号以输出I信号和Q信号。 比较器（200）比较I和Q信号的幅度。 幅度调节器（300）根据比较的结果改变I和Q信号的振幅。 频率转换器具有用于产生第一和第二振荡频率信号的正交信号发生器（110）和用于组合第一和第二振荡频率信号的第一和第二混频器（120,130）。 正交信号发生器具有用于输出第一振荡频率信号的振荡器和用于移位第一振荡频率信号的相位以输出第二振荡频率信号的移相器（112）。

公开(公告)号：KR1020060039798A

公开(公告)日：2006-05-09

申请号：KR1020040089023

申请日：2004-11-03

Applicant: 삼성전기주식회사

Inventor： 박경석 ,  백원진 ,  나유삼 ,  최정기 ,  이영진 ,  유현환

IPC: H03H11/04

CPC classification number: H03H11/04 ,  H03H11/0422 ,  H03H11/0433 ,  H03H11/0472 ,  H03H11/1291

Abstract: 본 발명은 통신시스템의 이미지 리젝션 믹서 등에 적용되는 GM-C 필터를 제공하는데 그 목적이 있다.
본 발명의 GM-C 필터는, GM셀을 이용하여 별도의 보상 회로없이 I신호 및 Q신호에 대한 크기 및 위상 보상을 수행하는 회로를 간단히 설계함으로써, 가변 캐패시터나 가변 저항 등의 별도의 크기 및 위상 보정회로 없이, I신호 및 Q신호의 크기 및 위상을 보정할 수 있다.
이미지 리젝션 필터, GM-C 필터

Abstract translation: 本发明的目的是提供一种应用于通信系统的镜像抑制混频器的GM-C滤波器。

公开(公告)号：KR100513319B1

公开(公告)日：2005-09-07

申请号：KR1020030059071

申请日：2003-08-26

Applicant: 삼성전기주식회사

Inventor： 이영진 ,  권효석 ,  백원진 ,  이진택 ,  유현환 ,  최정기

IPC: H04N5/50

CPC classification number: H03J1/0041 ,  H03J2200/02

Abstract: 본 발명은 튜너에서 발생된 중간주파수와 공칭주파수와의 주파수 틀러짐을 카운터를 이용하여 간단하게 검출할 수 있으며, 더하여, 중간주파수의 주파수를 카운팅하는 카운터의 리셋 및 프리셋동작을 제어함으로서 디코더 없이 상기 카운팅데이타를 중간주파수의 미세조정값으로 그대로 인가할 수 있는 디지탈 자동 미세 조정 방법 및 장치에 관한 것이다.

公开(公告)号：KR1020040082046A

公开(公告)日：2004-09-24

申请号：KR1020030016575

申请日：2003-03-17

Applicant: 삼성전기주식회사

Inventor： 이진택 ,  권효석 ,  박성동 ,  최정기 ,  유현환 ,  이영진 ,  최규환

IPC: H04N5/46

CPC classification number: H04N5/46 ,  H04N5/50

Abstract: PURPOSE: A universal TV tuner having plural broadcasting reception functions is provided to voluntarily select a desired broadcasting scheme irrespective of a use area and a use purpose and watch TV by the selected broadcasting scheme. CONSTITUTION: An RF(Radio Frequency) AGC(Automatic Gain Control) amplifying unit(21) amplifies an inputted TV signal. A primary frequency converting unit(22) converts an input signal from the RF AGC amplifying unit into a primary IF(Intermediated Frequency) signal. A primary IF filter(23) passes a band of the primary IF signal from the primary frequency converting unit. A secondary frequency converting unit(24) converts the primary IF signal from the primary IF filter into a secondary IF signal. A secondary IF filter(25) passes a band of the second IF signal from the secondary frequency converting unit. An IF AGC amplifying unit(26) amplifies the secondary IF signal from the secondary IF filter. A broadcasting scheme selecting unit(31) selects one of a plurality of broadcasting schemes. A system gain control unit(32) controls the entire gain of a system corresponding to the broadcasting scheme selected by the broadcasting scheme selecting unit.

Abstract translation: 目的：提供具有多个广播接收功能的通用TV调谐器，以便自愿地选择所需的广播方案，而不管使用区域和用途以及通过所选择的广播方案观看TV。 构成：RF（射频）AGC（自动增益控制）放大单元（21）放大输入的TV信号。 主频变换单元（22）将来自RF AGC放大单元的输入信号转换为主IF（中间频率）信号。 主IF滤波器（23）使来自主频率转换单元的主IF信号的频带通过。 次级频率转换单元（24）将来自主IF滤波器的初级IF信号转换成次级IF信号。 次级IF滤波器（25）使来自次级频率转换单元的第二IF信号的频带通过。 IF AGC放大单元（26）从次级IF滤波器放大次级IF信号。 广播方案选择单元（31）选择多个广播方案之一。 系统增益控制单元（32）控制与由广播方案选择单元选择的广播方案对应的系统的整体增益。

公开(公告)号：KR100415567B1

公开(公告)日：2004-01-24

申请号：KR1020010063604

申请日：2001-10-16

Applicant: 삼성전기주식회사

Inventor： 최정기 ,  권효석 ,  윤병호

IPC: H04N5/50

Abstract: PURPOSE: A double conversion type RF tuner is provided to form an up-conversion block and a down-conversion block on different wafer chips while realizing the up-conversion block and the down-conversion block as one package, thereby reducing interference between the two conversion blocks and improving the property of a tuner. CONSTITUTION: An input terminal(210) is connected to input signals. A low band pass filter(220) has an input connected to the input terminal. A crystal oscillator(240) has a reference frequency. An up-conversion block(232), which is formed as an IC(Integrated Circuit) on a first wafer chip, has an input connected to an output of the low band pass filter and up-converts frequency of an output signal of the low band pass filter. A down-conversion block(234), which is formed as an IC(Integrated Circuit) on a second wafer chip, has an input connected to an output of the up-conversion block and down-converts frequency of an output signal of the up-conversion block. A first SAW(Surface Acoustic Wave) filter(250) has an input connected to the output of the up-conversion block and an output connected to the input of the down-conversion block. A second SAW filter(260) has an input connected to the output of the down-conversion block.

Abstract translation: 目的：提供双转换型RF调谐器以在不同的晶片上形成上转换块和下转换块，同时实现上转换块和下转换块作为一个封装，从而减少两者之间的干扰 转换块和改善调谐器的属性。 构成：输入端子（210）连接到输入信号。 低带通滤波器（220）具有连接到输入端子的输入。 晶体振荡器（240）具有参考频率。 在第一晶片芯片上形成为IC（集成电路）的上转换块（232）具有连接到低带通滤波器的输出端的输入端，并且上变频块（232）的输出信号的频率上变频 带通滤波器。 在第二晶片芯片上形成为IC（集成电路）的下转换块（234）具有连接到上转换块的输出的输入，并且将上转换块的输出信号的频率下变频 转换块。 第一SAW（表面声波）滤波器（250）具有连接到上转换块的输出的输入和连接到下转换块的输入的输出。 第二SAW滤波器（260）具有连接到下变换块的输出的输入。

公开(公告)号：KR1020030096930A

公开(公告)日：2003-12-31

申请号：KR1020020034030

申请日：2002-06-18

Applicant: 삼성전기주식회사

Inventor： 윤병호 ,  권효석 ,  유현환 ,  최정기

IPC: H03L7/085

Abstract: PURPOSE: A TMC(Two Modulus Counter) of programmable frequency divider is provided to prevent the drop of voltage due to the charge sharing and the leakage current by using a feedback P-channel MOS transistor. CONSTITUTION: A TMC of programmable frequency divider includes the first N-channel MOS transistor(MN1), the second N-channel MOS transistor(MN2), the second P-channel MOS transistor(MP2), the third N-channel MOS transistor(MN3), the fourth N-channel MOS transistor(MN4), and a feedback P-channel MOS transistor(MPFB). The first N-channel MOS transistor(MN1) has a drain connected to a drain of the first P-channel MOS transistor(MP1) and a gate connected to the first data terminal(D1). The second N-channel MOS transistor(MN2) has a drain connected to a source of the first N-channel MOS transistor(MN1) and a gate connected to the second data terminal(D2). The second P-channel MOS transistor(MP2) has a source connected to a power supply and a gate connected to a gate of the first P-channel MOS transistor(MP1). The third N-channel MOS transistor(MN3) has a drain connected to a drain of the second P-channel MOS transistor(MP2). The fourth N-channel MOS transistor(MN4) has a drain connected to a source of the third N-channel MOS transistor(MN3) and a gate connected to a gate of the first P-channel MOS transistor(MP1). The feedback P-channel MOS transistor(MPFB) has a source connected to the power supply, a gate connected to a drain of the third N-channel MOS transistor(MN3), and a drain connected to the drain of the first P-channel MOS transistor(MP1).

Abstract translation: 目的：提供可编程分频器的TMC（双模计数器），通过使用反馈P沟道MOS晶体管来防止由于电荷共享引起的电压下降和漏电流。 构成：可编程分频器的TMC包括第一N沟道MOS晶体管（MN1），第二N沟道MOS晶体管（MN2），第二P沟道MOS晶体管（MP2），第三N沟道MOS晶体管 MN3），第四N沟道MOS晶体管（MN4）和反馈P沟道MOS晶体管（MPFB）。 第一N沟道MOS晶体管（MN1）具有连接到第一P沟道MOS晶体管（MP1）的漏极的漏极和连接到第一数据端子（D1）的栅极。 第二N沟道MOS晶体管（MN2）具有连接到第一N沟道MOS晶体管（MN1）的源极的漏极和连接到第二数据端子（D2）的栅极。 第二P沟道MOS晶体管（MP2）具有连接到电源的源极和连接到第一P沟道MOS晶体管（MP1）的栅极的栅极。 第三N沟道MOS晶体管（MN3）具有连接到第二P沟道MOS晶体管（MP2）的漏极的漏极。 第四N沟道MOS晶体管（MN4）具有连接到第三N沟道MOS晶体管（MN3）的源极的漏极和连接到第一P沟道MOS晶体管（MP1）的栅极的栅极。 反馈P沟道MOS晶体管（MPFB）具有连接到电源的源极，连接到第三N沟道MOS晶体管（MN3）的漏极的栅极以及连接到第一P沟道的漏极的漏极 MOS晶体管（MP1）。

公开(公告)号：KR1020030038916A

公开(公告)日：2003-05-17

申请号：KR1020010069116

申请日：2001-11-07

Applicant: 삼성전기주식회사

Inventor： 윤병호 ,  권효석 ,  최정기

IPC: H03L7/08

Abstract: PURPOSE: A double PLL(Phase Locked Loop) of a double conversion type tuner is provided to improve the efficiency of operation by using a simple structure of a temporal memory device. CONSTITUTION: An I/R reference divider is used for dividing a reference frequency of a crystal oscillator(400) according to reference division data of the second control data. A 1/8 prescaler is used for dividing an oscillation frequency of the second local oscillator(311). A 1/N programmable divider is used for dividing the output frequency of the 1/8 prescaler into the division data of an IF2 selector(413). A phase detector is used for detecting a phase difference between the divided reference frequency divided by the I/R reference divider and the oscillation frequency divided by the 1/N programmable divider. A charge pump is used for pumping the charge corresponding the phase difference of the phase detector. A loop filter is used for filtering the voltage of the charge pump to the DC voltage.

Abstract translation: 目的：提供双转换型调谐器的双PLL（锁相环），以通过使用时间存储器件的简单结构来提高操作效率。 构成：根据第二控制数据的参考分割数据，使用I / R参考分压器来分割晶体振荡器（400）的基准频率。 使用1/8预分频器来分频第二本地振荡器（311）的振荡频率。 1 / N可编程分频器用于将1/8预分频器的输出频率划分为IF2选择器（413）的分频数据。 相位检测器用于检测由I / R参考分频器划分的分频参考频率与由1 / N可编程分频器分频的振荡频率之间的相位差。 电荷泵用于泵浦对应于相位检测器的相位差的电荷。 环路滤波器用于将电荷泵的电压过滤到直流电压。