公开(公告)号：US07738714B2

公开(公告)日：2010-06-15

申请号：US11516603

申请日：2006-09-07

申请人： Yung-lyul Lee ,  Dae-yeon Kim ,  Ki-hun Han ,  Jae-ho Hur

发明人： Yung-lyul Lee ,  Dae-yeon Kim ,  Ki-hun Han ,  Jae-ho Hur

IPC分类号： G06K9/36

CPC分类号： H04N19/12 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

摘要： Provided are a method of and apparatus for lossless video encoding and decoding, in which a differential residual block generated by calculating a difference between pixels of a residual block resulting from interprediction is encoded, thereby improving the compression rate. The method of lossless video encoding includes performing interprediction between a reference frame and a current frame in units of a predetermined-size block to generate a predicted block of a current block to be encoded, generating a residual block composed of residual signals corresponding to differences between pixels of the predicted block and the current block, calculating differences between the residual signals of the residual block in a predetermined direction and generating a differential residual block based on the calculated differences, and performing entropy-encoding on the differential residual block.

摘要翻译： 提供了一种用于无损视频编码和解码的方法和装置，其中通过计算由间隔预测产生的残差块的像素之间的差异而产生的差分残差块被编码，从而提高了压缩率。 无损视频编码的方法包括以预定大小的块为单位执行参考帧和当前帧之间的间隔预测，以产生要编码的当前块的预测块，产生由对应于 计算预测块和当前块的像素，计算在预定方向上的残差块的残差信号之间的差异，并基于计算的差产生差分残差块，并对差分残差块进行熵编码。

公开(公告)号：US09374602B2

公开(公告)日：2016-06-21

申请号：US12108697

申请日：2008-04-24

申请人： Yung-Lyul Lee ,  Dae-yeon Kim

发明人： Yung-Lyul Lee ,  Dae-yeon Kim

IPC分类号： H04N19/61 ,  H04N19/91

CPC分类号： H04N19/91 ,  H04N19/61

摘要： Provided are a method and apparatus for entropy-encoding/entropy-decoding video data. The method of entropy-encoding video data includes binarizing coefficients of the frequency domain, which are generated by transforming a residual block of a current block into the frequency domain, using different binarization methods and performing binary arithmetic coding on the binarized coefficients. In this way, the coefficients are binarized adaptively according to whether the frequencies of the coefficients are high or low, thereby improving the compression efficiency of the video data.

摘要翻译： 提供了一种用于熵编码/熵解码视频数据的方法和装置。 熵编码视频数据的方法包括通过使用不同的二值化方法将当前块的残余块变换为频域而生成的频域二进制化系数，并对二值化系数进行二进制算术编码。 以这种方式，根据系数的频率是高还是低来自适应地对系数进行二值化，从而提高视频数据的压缩效率。

公开(公告)号：US20070065026A1

公开(公告)日：2007-03-22

申请号：US11516603

申请日：2006-09-07

申请人： Yung-lyul Lee ,  Dae-yeon Kim ,  Ki-hun Han ,  Jao-ho Hur

发明人： Yung-lyul Lee ,  Dae-yeon Kim ,  Ki-hun Han ,  Jao-ho Hur

IPC分类号： G06K9/36

CPC分类号： H04N19/12 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

摘要： Provided are a method of and apparatus for lossless video encoding and decoding, in which a differential residual block generated by calculating a difference between pixels of a residual block resulting from interprediction is encoded, thereby improving the compression rate. The method of lossless video encoding includes performing interprediction between a reference frame and a current frame in units of a predetermined-size block to generate a predicted block of a current block to be encoded, generating a residual block composed of residual signals corresponding to differences between pixels of the predicted block and the current block, calculating differences between the residual signals of the residual block in a predetermined direction and generating a differential residual block based on the calculated differences, and performing entropy-encoding on the differential residual block.

摘要翻译： 提供了一种用于无损视频编码和解码的方法和装置，其中通过计算由间隔预测产生的残差块的像素之间的差异而产生的差分残差块被编码，从而提高了压缩率。 无损视频编码的方法包括以预定大小的块为单位执行参考帧和当前帧之间的间隔预测，以产生要编码的当前块的预测块，产生由对应于 计算预测块和当前块的像素，计算在预定方向上的残差块的残差信号之间的差异，并基于计算的差产生差分残差块，并对差分残差块进行熵编码。

公开(公告)号：US20070149143A1

公开(公告)日：2007-06-28

申请号：US11583911

申请日：2006-10-20

申请人： Dae-yeon Kim ,  Hyun-koo Kang ,  Hee-seung Kim

发明人： Dae-yeon Kim ,  Hyun-koo Kang ,  Hee-seung Kim

IPC分类号： H04B1/40 ,  H04B1/06

CPC分类号： H04B1/0071 ,  H04B1/0078

摘要： A multiple local oscillation frequency generation apparatus which can generate local oscillation frequencies in at least two frequency bands and a wireless transceiver having the multiple local oscillation frequency generation apparatus are provided. The local oscillation frequency generation apparatus includes: an oscillation unit which comprises a plurality of VCOs that provide at least two local oscillation signals having different frequencies for modulating/demodulating RF signals in at least two frequency bands; a PLL which locks the frequencies of the local oscillation signals provided by the VCOs; a first switch which selects one of the local oscillation signal provided the VCOs according to a frequency band of a RF signal; a frequency conversion unit which converts the frequency of the selected local oscillation signal; and a phase shift unit which generates I-phase and Q-phase local oscillation signals by shifting the phase of a signal output by the frequency conversion unit.

摘要翻译： 提供了可以在至少两个频带中产生本地振荡频率的多本地振荡频率产生装置和具有多个本地振荡频率产生装置的无线收发器。 本地振荡频率发生装置包括：振荡单元，其包括多个VCO，其提供具有不同频率的至少两个本地振荡信号，用于在至少两个频带中调制/解调RF信号; PLL，其锁定由VCO提供的本地振荡信号的频率; 第一开关，其根据RF信号的频带选择提供VCO的本地振荡信号之一; 频率转换单元，其转换所选择的本地振荡信号的频率; 以及相移单元，通过移位由变频单元输出的信号的相位来产生I相和Q相本地振荡信号。

公开(公告)号：US20050184909A1

公开(公告)日：2005-08-25

申请号：US11060532

申请日：2005-02-18

申请人： Nikolai Tchistiakov ,  Seong-sin Joo ,  Dae-yeon Kim ,  Weon-kyo Jung ,  Hyun-koo Kang

发明人： Nikolai Tchistiakov ,  Seong-sin Joo ,  Dae-yeon Kim ,  Weon-kyo Jung ,  Hyun-koo Kang

IPC分类号： H01Q1/38 ,  H01Q5/00 ,  H01Q5/50 ,  H01Q9/28

CPC分类号： H01Q9/285 ,  H01Q1/38 ,  H01Q5/50

摘要： A wide band antenna, which has a wide frequency band so that it can be used in a wireless local area network (WLAN) and can be manufactured in a small size at a low cost, is provided. The wide band antenna includes a first antenna unit, a supply cable, a first connector coupler, a second antenna unit, a balun, a stub, and a second connector coupler. A frequency band increases when coupling occurs between the stub and the first antenna unit or the second antenna unit.

摘要翻译： 提供了宽频带天线，其具有宽频带，使得其可以在无线局域网（WLAN）中使用，并且可以以低成本制造成小尺寸。 宽带天线包括第一天线单元，供电电缆，第一连接器耦合器，第二天线单元，平衡 - 不平衡变换器，短线和第二连接器耦合器。 当短截线与第一天线单元或第二天线单元之间发生耦合时，频带增加。

公开(公告)号：US08055253B2

公开(公告)日：2011-11-08

申请号：US11327511

申请日：2006-01-09

申请人： Weon-kyo Jung ,  Joong-suk Park ,  Dae-yeon Kim ,  Hee-seung Kim

发明人： Weon-kyo Jung ,  Joong-suk Park ,  Dae-yeon Kim ,  Hee-seung Kim

IPC分类号： H04W24/00 ,  H04M1/00

CPC分类号： H04B1/0483

摘要： A transceiver device capable of calibration, and a calibration method used by the transceiver device. The transceiver device includes a reference transceiver, a plurality of remaining transceivers, and a plurality of transmission calibration paths connecting the remaining transceivers to the reference transceiver for transmission calibration of the remaining transceivers. An envelope detector included in the reference transceiver is shared with the remaining transceivers. When implementing a multiple input multiple output (MIMO) transceiver in a single chip, the chip size and manufacturing cost of the MIMO transceiver device can be substantially reduced.

摘要翻译： 能够进行校准的收发器装置，以及收发器装置使用的校准方法。 收发器设备包括参考收发器，多个剩余收发器以及将剩余收发器连接到参考收发器的多个发送校准路径，用于剩余收发器的发送校准。 包含在参考收发器中的包络检测器与剩余的收发器共享。 当在单个芯片中实现多输入多输出（MIMO）收发器时，可以显着地减少MIMO收发器设备的芯片尺寸和制造成本。

公开(公告)号：US07439811B2

公开(公告)日：2008-10-21

申请号：US11431555

申请日：2006-05-11

申请人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

发明人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

IPC分类号： H03F1/44

CPC分类号： H03F3/45188 ,  H03F3/193 ,  H03F2200/294 ,  H03F2203/45386 ,  H03F2203/45481

摘要： A broadband low noise amplifier and amplification method is provided. The broadband low noise amplifier includes an input terminal into which a radio frequency (RF) signal received by an antenna is input, an output terminal from which an amplified RF signal is output, at least one gain control part connected in parallel with loads of the output terminal to adjust the gain of the amplified RF signal, and at least one load tuning part that resonates with loads of the output terminal to adjust the resonance frequency of the load impedance. The method includes amplifying the input RF signal and outputting the amplified RF signal to an output terminal, where a gain of the amplified RF signal is adjusted by switching operations of at least one switching device connected in parallel with a load of the output terminal.

摘要翻译： 提供宽带低噪声放大器和放大方法。 宽带低噪声放大器包括输入端子，由天线接收的射频（RF）信号被输入到其中，输出放大的RF信号的输出端子，至少一个增益控制部分与 输出端子来调节放大的RF信号的增益，以及至少一个负载调谐部分，其与输出端子的负载共振以调节负载阻抗的谐振频率。 该方法包括放大输入RF信号并将放大的RF信号输出到输出端，其中放大的RF信号的增益通过与输出端的负载并联连接的至少一个开关器件的开关操作来调节。

公开(公告)号：US20070049330A1

公开(公告)日：2007-03-01

申请号：US11480503

申请日：2006-07-05

申请人： Dae-yeon Kim ,  Ju-ho Son

发明人： Dae-yeon Kim ,  Ju-ho Son

IPC分类号： H04M1/00

CPC分类号： H04B1/408

摘要： A wireless transceiver for receiving and processing a wireless local area network (WLAN) radio frequency (RF) signal and a satellite Digital Multimedia Broadcasting (DMB) RF signal, and generating and transmitting a WLAN RF signal, is provided. The wireless transceiver includes a reception antenna for receiving the WLAN RF signal or the satellite DMB RF signal; a quadrature demodulator for down-converting the received signal into a baseband signal, based on a local oscillator signal, and providing the baseband signal to a baseband processor; and a local oscillator signal generation unit which is configured to generate the local oscillator signal according to whether the received signal is a WLAN RF signal or a satellite DMB RF signal.

摘要翻译： 提供了一种无线收发器，用于接收和处理无线局域网（WLAN）射频（RF）信号和卫星数字多媒体广播（DMB）RF信号，以及生成和发送WLAN RF信号。 无线收发器包括用于接收WLAN RF信号或卫星DMB RF信号的接收天线; 正交解调器，用于基于本地振荡器信号将接收信号下变频为基带信号，并将基带信号提供给基带处理器; 以及本地振荡器信号生成单元，其被配置为根据所接收的信号是WLAN RF信号还是卫星DMB RF信号来生成本地振荡器信号。

公开(公告)号：US20060091944A1

公开(公告)日：2006-05-04

申请号：US11139570

申请日：2005-05-31

申请人： Dae-yeon Kim ,  Jae-young Ryu

发明人： Dae-yeon Kim ,  Jae-young Ryu

IPC分类号： H04L27/22

CPC分类号： H04B1/26 ,  H03D3/007 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0084

摘要： An I/Q quadrature demodulator converts a frequency of a radio frequency (RF) signal, and has characteristics of low voltage and noise in a wireless communication receiver. The I/Q quadrature demodulator includes an input terminal that converts an input RF signal into a RF current signal and is shared by an I mixer and a Q mixer, and the I mixer and the Q mixer receive the input RF current signal from the input terminal and output an I signal and a Q signal, respectively. The I mixer and the Q mixer share a single input terminal, thereby reducing power consumption, increasing conversion gain, and reducing a noise figure.

摘要翻译： I / Q正交解调器转换射频（RF）信号的频率，并且在无线通信接收机中具有低电压和噪声的特性。 I / Q正交解调器包括将输入RF信号转换为RF电流信号并由I混频器和Q混频器共享的输入端子，I混频器和Q混频器从输入端接收输入RF电流信号 并分别输出I信号和Q信号。 I混频器和Q混频器共享一个输入端子，从而降低功耗，增加转换增益，降低噪声系数。

公开(公告)号：US08212627B2

公开(公告)日：2012-07-03

申请号：US12711414

申请日：2010-02-24

申请人： Li Yang ,  Hyun-koo Kang ,  Dae-yeon Kim ,  LuoSheng Li

发明人： Li Yang ,  Hyun-koo Kang ,  Dae-yeon Kim ,  LuoSheng Li

IPC分类号： H03B1/00

CPC分类号： H04L27/0014 ,  H03B5/1215 ,  H03B5/1225 ,  H03B5/1231 ,  H03B5/1265 ,  H03B5/1271 ,  H03B5/1278 ,  H03B5/129 ,  H03B5/1293 ,  H03L7/099 ,  H03L7/10 ,  H03L2207/06 ,  H04L2027/0016

摘要： A wideband digitally-controlled oscillator (DCO) is provided. The wideband DCO includes an active element which is driven by a first digital control signal; a single inductor which is connected to the active element in parallel, and comprises fixed inductance; and a plurality of capacitors which are connected to the single inductor in parallel, and vary operating frequency by being selectively turned on or off by a second digital control signal. Accordingly, the wideband DCO capable of operating in a wideband frequency range using a single inductor is provided, and if the wideband DCO is implemented using a single integrated circuit (IC) chip, the size of chip is reduced as the single inductor is used.

摘要翻译： 提供宽带数字控制振荡器（DCO）。 宽带DCO包括由第一数字控制信号驱动的有源元件; 单个电感器并联连接到有源元件，并包括固定电感; 以及并联连接到单个电感器的多个电容器，并且通过由第二数字控制信号选择性地导通或关断来改变工作频率。 因此，提供能够使用单个电感器在宽带频率范围内工作的宽带DCO，并且如果使用单个集成电路（IC）芯片实现宽带DCO，则使用单个电感器来减小芯片的尺寸。