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公开(公告)号：KR100452825B1
公开(公告)日：2004-10-15
申请号：KR1020020085366
申请日：2002-12-27
Applicant: 삼성전기주식회사
IPC: H04N7/20
CPC classification number: H03H11/1291
Abstract: A linear channel select filter for an Intermediate Frequency selector of a satellite broadcasting tuner, linearly changes a desired frequency by adjusting an output current, and includes: a transconductance (GM) current cell controller for determining a control voltage according to a select signal, generating the output current according to an differential input voltage, linearly controlling the output current according to the control voltage, and providing a linearly variable resistance according to the linearly controlled output current, and a capacitor circuit coupled to the GM cell controller to provide a capacitance to generate a cutoff frequency voltage according to the output current and the variable resistance. An occupying area and a size of the filter are reduced.
Abstract translation: 用于卫星广播调谐器的中频选择器的线性信道选择滤波器通过调整输出电流线性地改变期望频率，并且包括：用于根据选择信号确定控制电压的跨导（GM）电流单元控制器，产生 输出电流根据差分输入电压，根据控制电压线性地控制输出电流，并且根据线性控制的输出电流提供线性可变电阻，以及电容器电路，耦合到GM单元控制器以提供电容以 根据输出电流和可变电阻产生截止频率电压。 占用面积和过滤器的尺寸减小。
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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
IPC: H04N5/46
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。
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公开(公告)号：KR1020040062738A
公开(公告)日：2004-07-09
申请号：KR1020030000248
申请日：2003-01-03
Applicant: 삼성전기주식회사
IPC: H03D7/18
CPC classification number: H03D3/009 , H03D7/1441 , H03D7/1458 , H03D7/1483 , H03D7/165
Abstract: PURPOSE: A mixer and a frequency converter for improving phase mismatching are provided to improve a SNR(Signal to Noise Ratio) and increase an image rejection ratio by removing the phase mismatching between two IF signals having a phase difference of 90 degrees. CONSTITUTION: A mixer for improving phase mismatching includes a first switch and a second switch. The first switch is used for performing an on/off switching operation for an input signal according to the first L0 signal. The second switch is connected in parallel to the first switch in order to perform an on/off switching operation for the input signal according to an inverse frequency of the second L0 signal. A frequency converter for improving phase mismatching includes a first mixer(54) and a second mixer(55). The first mixer is used for providing the first IF signal by mixing the first synthetic frequency with the input signal. The second mixer is used for providing the second IF signal by mixing the second synthetic frequency with the input signal.
Abstract translation: 目的：提供一种用于改善相位失配的混频器和变频器，以通过消除具有90度相位差的两个IF信号之间的相位失配来提高SNR（信噪比）并提高图像抑制比。 构成：用于改善相位失配的混合器包括第一开关和第二开关。 第一开关用于根据第一L0信号对输入信号执行开/关切换操作。 第二开关与第一开关并联连接，以便根据第二L0信号的反相频率对输入信号执行导通/截止切换操作。 一种用于改善相位失配的变频器包括第一混频器（54）和第二混频器（55）。 第一混频器用于通过将第一合成频率与输入信号混合来提供第一IF信号。 第二混频器用于通过将第二合成频率与输入信号混合来提供第二IF信号。
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公开(公告)号：KR1020040058853A
公开(公告)日：2004-07-05
申请号：KR1020020085366
申请日：2002-12-27
Applicant: 삼성전기주식회사
IPC: H04N7/20
CPC classification number: H03H11/1291
Abstract: PURPOSE: A linear channel select filter is provided to control current of the filter to linearly vary a desired frequency. CONSTITUTION: A linear channel select filter for selecting a frequency using resistance and capacitance includes a GM current cell part(100) and a capacitor circuit part(200). The GM current cell part decides a control voltage in response to a select signal and provides output current in response to a differential input voltage. The GM current cell part linearly controls the output current based on the control voltage, and provides resistance linearly varied with the output current. The capacitor circuit part is connected to the GM current cell part to provide capacitance.
Abstract translation: 目的：提供一个线性通道选择滤波器来控制滤波器的电流线性地改变所需的频率。 构成：用于使用电阻和电容选择频率的线性通道选择滤波器包括GM电流单元部分（100）和电容器电路部分（200）。 GM电流单元部分响应于选择信号决定控制电压，并响应差分输入电压提供输出电流。 GM电流单元部分基于控制电压线性控制输出电流，并提供随输出电流线性变化的电阻。 电容器电路部分连接到GM电流单元部分以提供电容。
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公开(公告)号：KR1020040009425A
公开(公告)日：2004-01-31
申请号：KR1020020043366
申请日：2002-07-23
Applicant: 삼성전기주식회사
IPC: H03M1/12
CPC classification number: H03M1/1265 , H03M1/14
Abstract: PURPOSE: A high-speed encoder is provided to reduce the critical path, the delay time, and the power consumption by using a folding interpolation method and an encoding method. CONSTITUTION: A high-speed encoder includes a switch(120), an encoder(130), a selection controller(140), a selector(150), the first high-order bit generator(160), and the second high-order bit generator(170). The switch(120) selects high-order data codes or low-order data codes according to high-order/low-order selection signals of a code generator(110). The encoder(130) is used for encoding the selected data codes to generate low-order binary codes. The selection controller(140) is used for providing code selection signals according to the predetermined data codes of the selected data codes. The selector(150) is used for selecting one code from output codes of the encoder(130) according to the code selection signals. The first high-order bit generator(160) is used for providing the first high-order bits by using the predetermined data codes of the high-order data codes and the low-order data codes. The second high-order bit generator(170) is used for providing the second high-order bits by using the predetermined data codes of the high-order data codes.
Abstract translation: 目的：提供高速编码器，通过使用折叠插值法和编码方法，减少关键路径，延迟时间和功耗。 构成：高速编码器包括开关（120），编码器（130），选择控制器（140），选择器（150），第一高位位发生器（160）和第二高位 位发生器（170）。 开关（120）根据代码发生器（110）的高阶/低阶选择信号选择高阶数据码或低位数据码。 编码器（130）用于对选择的数据代码进行编码以生成低阶二进制码。 选择控制器（140）用于根据所选择的数据代码的预定数据代码来提供代码选择信号。 选择器（150）用于根据代码选择信号从编码器（130）的输出代码中选择一个代码。 第一高阶位发生器（160）用于通过使用高阶数据代码和低阶数据代码的预定数据代码来提供第一高位位。 第二高阶位发生器（170）用于通过使用高阶数据代码的预定数据代码来提供第二高位位。
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Patent Agency Ranking
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
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。
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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
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）。
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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
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。
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