公开(公告)号：US20140065992A1

公开(公告)日：2014-03-06

申请号：US13864768

申请日：2013-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-Woo LEE ,  Shin-Chul KIM ,  Su-Seob AHN ,  Si-Bum JUN ,  Byung-Ki HAN

IPC: H04B1/12

CPC classification number: H04B1/401 ,  H03H11/1252 ,  H03H11/1291 ,  H03H2011/0494 ,  H03H2250/00 ,  H04B1/123 ,  H04B1/126

Abstract: An analog baseband filter apparatus for a multi-mode and multi-band wireless transceiver and a method for controlling the analog baseband filter apparatus are provided. The analog baseband filter apparatus includes a plurality of Radio Frequency (RF) units, each of the plurality of RF units being for receiving RF signals of one of a plurality of frequency bands and outputting baseband signals, a plurality of filter blocks for filtering and amplifying the baseband signals, and a switching unit for connecting at least two of the plurality of RF units to at least one of the plurality of filter blocks according to a selected communication mode, wherein the at least one of the plurality of filter blocks is configured to be connected to a capacitor region of an adjacent filter block from among the plurality of filter blocks.

Abstract translation: 提供了一种用于多模和多频无线收发器的模拟基带滤波装置和一种用于控制模拟基带滤波装置的方法。 模拟基带滤波器装置包括多个射频单元，多个RF单元中的每一个用于接收多个频带之一的RF信号并输出​​基带信号，多个用于滤波和放大的滤波器块 所述基带信号以及用于根据所选择的通信模式将所述多个RF单元中的至少两个RF单元连接到所述多个滤波块中的至少一个的切换单元，其中，所述多个滤波块中的至少一个被配置为 连接到多个滤波器块中的相邻滤波器块的电容器区域。

公开(公告)号：US20150180532A1

公开(公告)日：2015-06-25

申请号：US14638325

申请日：2015-03-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Woo LEE ,  Shin-Chul KIM ,  Su-Seob AHN ,  Si-Bum JUN ,  Byung-Ki HAN

IPC: H04B1/401 ,  H04B1/12

CPC classification number: H04B1/401 ,  H03H11/1252 ,  H03H11/1291 ,  H03H2011/0494 ,  H03H2250/00 ,  H04B1/123 ,  H04B1/126

Abstract: An analog baseband filter apparatus for a multi-mode and multi-band wireless transceiver and a method for controlling the analog baseband filter apparatus are provided. The analog baseband filter apparatus includes a plurality of Radio Frequency (RF) units, each of the plurality of RF units being for receiving RF signals of one of a plurality of frequency bands and outputting baseband signals, a plurality of filter blocks for filtering and amplifying the baseband signals, and a switching unit for connecting at least two of the plurality of RF units to at least one of the plurality of filter blocks according to a selected communication mode, wherein the at least one of the plurality of filter blocks is configured to be connected to a capacitor region of an adjacent filter block from among the plurality of filter blocks.

Abstract translation: 提供了一种用于多模和多频无线收发器的模拟基带滤波装置和一种用于控制模拟基带滤波装置的方法。 模拟基带滤波器装置包括多个射频单元，多个RF单元中的每一个用于接收多个频带之一的RF信号并输出​​基带信号，多个用于滤波和放大的滤波器块 所述基带信号以及用于根据所选择的通信模式将所述多个RF单元中的至少两个RF单元连接到所述多个滤波块中的至少一个的切换单元，其中，所述多个滤波块中的至少一个被配置为 连接到多个滤波器块中的相邻滤波器块的电容器区域。

公开(公告)号：US20140300390A1

公开(公告)日：2014-10-09

申请号：US14244206

申请日：2014-04-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Wook HAN ,  Sung-Jun LEE ,  In-Yup KANG ,  Thomas Byunghak CHO ,  Joon-Hee LEE ,  Si-Bum JUN ,  Jong-Won CHOI

IPC: H03L7/18

CPC classification number: H03L7/104 ,  H03L7/1976 ,  H03L2207/05

Abstract: An electronic device for synthesizing a frequency is provided. The electronic device includes a bank changer configured to output a channel code corresponding to a reference frequency signal and a feedback frequency signal, a channel code mapper configured to generate a changed channel code by applying an offset to the channel code output from the bank changer, and a voltage controlled oscillator configured to control a total capacitance of a plurality of capacitors based on the changed channel code and to oscillate a frequency dependent on the total capacitance.

Abstract translation: 提供一种用于合成频率的电子装置。 电子设备包括：银行变换器，被配置为输出与参考频率信号和反馈频率信号相对应的信道码;频道码映射器，被配置为通过对从银行变换器输出的信道码施加偏移来产生改变的信道码; 以及电压控制振荡器，其被配置为基于改变的信道码来控制多个电容器的总电容，并且根据总电容振荡频率。

公开(公告)号：US20130154741A1

公开(公告)日：2013-06-20

申请号：US13715537

申请日：2012-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Woo LEE ,  Si-Bum JUN

IPC: H03F3/45 ,  H03L7/00

CPC classification number: H03F3/45071 ,  H03F1/342 ,  H03F3/195 ,  H03F3/45179 ,  H03F3/45475 ,  H03F3/45654 ,  H03F3/45977 ,  H03F2200/294 ,  H03F2200/336 ,  H03F2200/405 ,  H03F2200/451 ,  H03F2203/45138 ,  H03F2203/45404 ,  H03F2203/45421 ,  H03F2203/45422 ,  H03F2203/45444 ,  H03F2203/45512 ,  H03F2203/45514 ,  H03F2203/45522 ,  H03F2203/45526 ,  H03F2203/45528 ,  H03F2203/45591 ,  H03F2203/45594 ,  H03L7/00

Abstract: An operational amplifier circuit is provided. The operational amplifier circuit includes a differential amplifier of a cascade structure and a switched-capacitor type Common-Mode FeedBack (CMFB) circuit. The differential amplifier amplifies a difference between two input signals to output an anode output voltage and a negative output voltage. The switched-capacitor type CMFB circuit averages the anode output voltage and the negative output voltage of the differential amplifier, compares the average voltage with a reference voltage to generate a feedback signal based on a result of the comparison, and provides the feedback signal to the differential amplifier. Therefore, power consumption is reduced and a battery use time of a wireless terminal can be extended. Also, since an operational amplifier gain of each analog filter terminal is not negatively affected, a Direct Current (DC) offset is reduced, thereby improving signal quality.

Abstract translation: 提供运算放大器电路。 运算放大器电路包括级联结构的差分放大器和开关电容型共模反馈（CMFB）电路。 差分放大器放大两个输入信号之间的差，以输出阳极输出电压和负输出电压。 开关电容器型CMFB电路对差分放大器的阳极输出电压和负输出电压进行平均，将平均电压与参考电压进行比较，以根据比较结果生成反馈信号，并将反馈信号提供给 差分放大器。 因此，功耗降低，无线终端的电池使用时间能够延长。 此外，由于每个模拟滤波器端子的运算放大器增益不受负面影响，所以减小直流（DC）偏移，从而提高信号质量。