公开(公告)号：US20070220394A1

公开(公告)日：2007-09-20

申请号：US11701956

申请日：2007-02-02

申请人： Byung Kim ,  Seok Hyun ,  Seong Park ,  Jae Kim ,  Hyun Park ,  Jong Seo

发明人： Byung Kim ,  Seok Hyun ,  Seong Park ,  Jae Kim ,  Hyun Park ,  Jong Seo

IPC分类号： H03M13/00

CPC分类号： H03M13/2975 ,  H03M13/6502 ,  H03M13/658

摘要： Provided is a low-complexity and low-power-consumption turbo decoder with a variable scaling factor. The performance of the turbo decoder is enhanced by evaluating a decoding convergence degree of the turbo decoder using a sign difference ratio (SDR) value, limiting the iterative-decoding number, and calculating and applying a variable scaling factor producing optimal performance in each decoding convergence area based on the SDR value, and power consumption is reduced by reducing the average number of decoding iterations. Thus, the performance degradation when the encoded block is large, which is a shortcoming of a conventional EMLMAP algorithm, can be prevented, the average number of decoding iterations can be reduced, and accordingly power consumption can be reduced.

摘要翻译： 提供了具有可变缩放因子的低复杂度和低功耗turbo解码器。 通过使用符号差分比（SDR）值评估turbo解码器的解码收敛度，限制迭代解码数，并且在每个解码收敛中计算和应用产生最佳性能的可变缩放因子来增强turbo解码器的性能 基于SDR值的区域，并且通过减少平均解码次数减少功耗。 因此，可以防止编码块大时的性能下降，这是常规EMLMAP算法的缺点，可以减少平均解码次数，因此能够降低功耗。

公开(公告)号：US20070136649A1

公开(公告)日：2007-06-14

申请号：US11635366

申请日：2006-12-07

申请人： Jong Seo ,  Byung Kim ,  Seong Park

发明人： Jong Seo ,  Byung Kim ,  Seong Park

IPC分类号： H03M13/03

CPC分类号： H03M13/3927 ,  H03M13/395 ,  H03M13/6502

摘要： Provided are an apparatus and method for efficiently computing a log likelihood ratio (LLR) using the maximum a posteriori (MAP) algorithm known as block combining. The method includes the steps of: calculating alpha values, beta values and gamma values of at least two time sections; calculating transition probabilities of respective states in the at least two time sections; performing a cormparison operation for some of the transition probabilities to determine the highest value, selecting one of the other transition probabilities according to the determined high value, comparing the determined value with the selected value to select the higher value, and thereby obtaining the highest of the transition probabilities; and determining an operation to apply according to the highest transition probability and calculating an LLR.

摘要翻译： 提供了一种使用称为块组合的最大后验（MAP）算法来有效地计算对数似然比（LLR）的装置和方法。 该方法包括以下步骤：计算至少两个时间段的α值，β值和γ值; 计算所述至少两个时间段中的各个状态的转移概率; 对一些转换概率进行比较操作以确定最高值，根据所确定的高值选择其他转移概率之一，将所确定的值与所选择的值进行比较以选择较高值，从而获得最高值 转移概率; 并根据最高转移概率确定应用的运算并计算LLR。

公开(公告)号：US20060126492A1

公开(公告)日：2006-06-15

申请号：US11299184

申请日：2005-12-09

申请人： Seok Hyun ,  Byung Kim ,  Seong Park

发明人： Seok Hyun ,  Byung Kim ,  Seong Park

IPC分类号： H04J11/00 ,  H04J1/00

CPC分类号： H04L1/0007 ,  H04L1/0017 ,  H04L1/009

摘要： Provided is a method and apparatus for transmitting data based on OFDM (Orthogonal Frequency Division Multiplexing). The method includes: forming a plurality of packets suitable for a selected transmission mode from data input to a transmitter; determining a transfer rate of the data; when the data transfer rate is determined to be low and synchronous connection oriented link should be maintained, dividing each of the plurality of packets into a plurality of sub-packets; and transmitting the divided sub-packets, wherein when the divided sub-packets are transmitted, a power supply duration of the transmitter is reduced by using a DPM (dynamic power management) or fine state control unit.

公开(公告)号：US20070085602A1

公开(公告)日：2007-04-19

申请号：US11482576

申请日：2006-07-07

申请人： Min Park ,  Yun Choi ,  Kyung Park ,  Seok Hyun ,  Seong Park

发明人： Min Park ,  Yun Choi ,  Kyung Park ,  Seok Hyun ,  Seong Park

IPC分类号： H03F1/14 ,  H03F3/68

CPC分类号： H03F1/0222 ,  H03F1/0277

摘要： Provided is a power amplifier of a low-power consumption system that has linearity at a peak output power while increasing efficiency in a most frequently used range, and thereby enables a battery to last longer. The power amplifier includes an input impedance matcher for impedance-matching a signal input from the outside; a high-power amplifier and a low-power amplifier for amplifying the signal having passed through the input impedance matcher; an amplification controller controlling the high-power amplifier and low-power amplifier according to the power level of the input signal; an output impedance matcher for impedance-matching the signal amplified by the high-power amplifier and low-power amplifier; and a dynamic voltage supplier for supplying the low-power amplifier with a variable driving voltage. With the constitution set forth above, linearity at peak output power is maintained, and efficiency increases in the most frequently used range, thereby enabling the battery of a handheld to last longer.

摘要翻译： 提供了一种低功耗系统的功率放大器，其在峰值输出功率下具有线性度，同时提高了最常用范围内的效率，从而使得电池能够持续更长时间。 功率放大器包括用于阻抗匹配从外部输入的信号的输入阻抗匹配器; 大功率放大器和用于放大已经通过输入阻抗匹配器的信号的低功率放大器; 放大控制器根据输入信号的功率电平控制大功率放大器和低功率放大器; 用于阻抗匹配由大功率放大器和低功率放大器放大的信号的输出阻抗匹配器; 以及用于向低功率放大器供应可变驱动电压的动态电压供应器。 根据上述结构，保持峰值输出功率的线性度，并且在最常用的范围内效率增加，从而使得手持式电池的持续时间更长。

公开(公告)号：US20070096842A1

公开(公告)日：2007-05-03

申请号：US11499440

申请日：2006-08-04

申请人： Seok Hyun ,  Kyung Park ,  Tae Kang ,  Seong Park

发明人： Seok Hyun ,  Kyung Park ,  Tae Kang ,  Seong Park

IPC分类号： H01P1/32

CPC分类号： H03H7/52

摘要： Provided are a digitally controlled circulator and a radio frequency identification (RFID) reader having the circulator. A power splitter is composed of lumped elements and the values of the elements are digitally changed using switching means, in which the transmission loss of a signal is controlled according to whether the reader is in a transmission state or a reception state. Therefore, the loss can be minimized, and the circulator can be miniaturized and priced down by an integrated circuit (IC) semiconductor process and mounted in a mobile terminal such as a cellular phone.

摘要翻译： 提供了一种数字控制循环器和具有循环器的射频识别（RFID）读取器。 功率分配器由集总元件组成，并且使用切换装置对元件的值进行数字改变，其中根据读取器是处于传输状态还是接收状态来控制信号的传输损耗。 因此，可以使损耗最小化，并且可以通过集成电路（IC）半导体工艺将循环器小型化和定价，并且安装在诸如蜂窝电话的移动终端中。

公开(公告)号：US20070129076A1

公开(公告)日：2007-06-07

申请号：US11518819

申请日：2006-09-11

申请人： Sung Cho ,  Byung Kim ,  Seong Park

发明人： Sung Cho ,  Byung Kim ,  Seong Park

IPC分类号： H04Q7/20

CPC分类号： H04W88/02 ,  H04W76/14 ,  H04W88/06

摘要： Provided are a terminal supporting peer-to-peer (P2P) communication, a communication method using the terminal, and a billing method based on the terminal. A transceiver of the terminal is implemented to support P2P communication with an adjacent terminal in the same cell. Thus, when short-range communication is possible, the terminal performs P2P communication directly with the adjacent terminal, not via a base station. Consequently, when terminals use different mobile telecommunication service providers or there is no base station network, the terminals can be used for short-range communication. When a receiving channel state becomes satisfactory while communication with an adjacent terminal is being performed via a base station, the terminal switches to a P2P communication mode and performs communication with the adjacent terminal. On the contrary, when the receiving channel state deteriorates while communication with the adjacent terminal is being performed in the P2P communication mode, the terminal switches to a base station communication mode and performs communication with the adjacent terminal. Therefore, it is possible to use the terminal for short-range communication without attaching an additional short-range communication module to the terminal.

摘要翻译： 提供了一种支持对等（P2P）通信的终端，使用终端的通信方法以及基于终端的计费方法。 终端的收发机被实现为支持与相同小区中的相邻终端的P2P通信。 因此，当短距离通信成为可能时，终端不直接通过基站直接与相邻终端进行P2P通信。 因此，当终端使用不同的移动电信服务提供商或者没有基站网络时，终端可以用于短距离通信。 当通过基站进行与相邻终端的通信时，当接收信道状态满意时，终端切换到P2P通信模式，并与相邻终端进行通信。 相反，当在P2P通信模式中正在执行与相邻终端的通信时，当接收信道状态恶化时，终端切换到基站通信模式并与相邻终端进行通信。 因此，可以使终端进行短距离通信，而不需要向终端附加附加的短距离通信模块。

公开(公告)号：US20060203741A1

公开(公告)日：2006-09-14

申请号：US11299203

申请日：2005-12-09

申请人： Jeen Hur ,  Sun Kim ,  Byung Kim ,  Seong Park ,  Sang Han ,  Hoo Lee

发明人： Jeen Hur ,  Sun Kim ,  Byung Kim ,  Seong Park ,  Sang Han ,  Hoo Lee

IPC分类号： H04J1/16 ,  H04Q7/24

CPC分类号： H04W52/0293 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

摘要： Provided is a wireless packet communication method, and more particularly, a method and apparatus for enabling low-power communication by providing separate driving clocks optimized for a lower part for performing the function of a physical layer part and an upper part for performing the function of an upper layer above the physical layer in a wireless packet communication system. The method includes a first clock providing step of measuring actual data transmission and reception rates at a predetermined period, setting up a frequency (F1) of a first clock based on the measured rates, and providing the first clock to the upper part and a second clock providing step of determining a transfer mode of the wireless packet communication system, detecting a frequency (F2) of a second clock selected according to the determined transfer mode, and providing the second clock to the lower part.

摘要翻译： 本发明提供一种无线分组通信方法，更具体地说，涉及一种能够实现低功率通信的方法和装置，该方法和装置通过提供针对下部优化的单独的驱动时钟，用于执行物理层部分和上部的功能，以执行功能 在无线分组通信系统中的物理层上方的上层。 该方法包括：第一时钟提供步骤，用于在预定时间段内测量实际数据发送和接收速率，基于测量的速率建立第一时钟的频率（F 1> 1），并且提供第一时钟 时钟到上半部分，以及第二时钟提供步骤，确定无线分组通信系统的传送模式，检测根据所确定的传送模式选择的第二时钟的频率（F 2> 2），以及 向下部提供第二个时钟。

公开(公告)号：US20070223281A1

公开(公告)日：2007-09-27

申请号：US11488836

申请日：2006-07-19

申请人： Seong Park

发明人： Seong Park

IPC分类号： G11C14/00 ,  G11C16/06 ,  G11C11/34 ,  G11C7/00

CPC分类号： G11C5/147 ,  G11C7/12 ,  G11C16/0483 ,  G11C16/24

摘要： A flash memory device having a function of selectively changing a precharge voltage for a sensing node and a read operation method thereof. The flash memory device includes a memory cell array, a precharge voltage generator, and a plurality of page buffers. The memory cell array includes a plurality of memory cells respectively sharing a plurality of word lines and a plurality of bit lines. The precharge voltage generator outputs one of first and second voltage as a precharge voltage in response to a selection control signal. The plurality of page buffers are connected to every pair of the plurality of bit lines one by one and precharge sensing lines to the precharge voltage in response to a precharge control signal.

摘要翻译： 具有选择性地改变感测节点的预充电电压的功能的闪存器件及其读取操作方法。 闪存器件包括存储单元阵列，预充电电压发生器和多个页缓冲器。 存储单元阵列包括分别共享多个字线和多个位线的多个存储单元。 预充电电压发生器响应于选择控制信号输出第一和第二电压中的一个作为预充电电压。 多个页缓冲器逐一连接到每对多个位线，并且响应于预充电控制信号将预充电感测线预充电到预充电电压。

公开(公告)号：US20070181416A1

公开(公告)日：2007-08-09

申请号：US10556785

申请日：2004-05-14

申请人： Ki Jung ,  Jong Kwon ,  Seong Park ,  Woo Son

发明人： Ki Jung ,  Jong Kwon ,  Seong Park ,  Woo Son

IPC分类号： B01J19/12

CPC分类号： C07D487/22 ,  B01J19/10 ,  B01J19/126 ,  B01J2219/00063 ,  B01J2219/089 ,  B01J2219/0892 ,  B01J2219/123 ,  B01J2219/1275

摘要： Disclosed herein is a process for preparing a metal or nonmetal phthalocyanine by using both microwave and ultrasonic wave energy in the presence of a solvent, or by using microwave energy in the absence of a solvent. Specifically, according to the process, anhydrous phthalic acid, phthalimide, 1,3-diiminoisoindoline, 1,2-dicyanobenzene, an halogen derivative thereof, an alkyl_derivative thereof or an alkoxy derivative thereof is mixed with a metal chloride or an alkoxy metal at 130250° C. for 0.2515 hours by using microwave at a frequency of 0.1-1000 Hz and a power of 100-3,000 W and ultrasonic wave at a frequency of 1-1,000 GHz and a power of 100-5,000 W in the presence of a solvent, or by using microwave at a frequency of 0.1-100 GHz and a power of 100-4,000 W in the absence of a solvent. Further disclosed is an apparatus for preparing a metal or nonmetal phthalocyanine in the absence or presence of solvent.

摘要翻译： 本文公开了通过在溶剂存在下使用微波和超声波能量或在不存在溶剂的情况下使用微波能量来制备金属或非金属酞菁的方法。 具体地说，根据该方法，在130250下将无水邻苯二甲酸，邻苯二甲酰亚胺，1,3-二亚氨基异吲哚啉，1,2-二氰基苯，其卤素衍生物，其烷基衍生物或其烷氧基衍生物与金属氯化物或烷氧基金属混合 在溶剂存在下，使用频率为0.1〜1000Hz，功率为100〜300W的微波，频率为1-1000GHz，功率为100〜500W的超声波， ，或在不存在溶剂的情况下使用频率为0.1-100GHz的微波和功率为100-4,000W的微波。 还公开了在不存在或存在溶剂的情况下制备金属或非金属酞菁的装置。

公开(公告)号：US20070096923A1

公开(公告)日：2007-05-03

申请号：US11448468

申请日：2006-06-06

申请人： Sang Lee ,  Seong Park ,  Kyung Park

发明人： Sang Lee ,  Seong Park ,  Kyung Park

IPC分类号： G08B13/14 ,  G06K19/06

CPC分类号： G06K19/0723 ,  G06K19/0701

摘要： Provided is a voltage multiplier converting an alternating current (AC) electromagnetic wave into a direct current (DC) voltage signal in a radio frequency identification (RFID) tag, and including means for obtaining voltage gain, the means being connected to an input terminal through which the AC electromagnetic wave is input. The voltage multiplier can generate a greater DC output voltage than a conventional voltage multiplier at the same input power. Therefore, a desired DC output voltage can be obtained at low input power, so that an effective operating distance can be increased. In addition, since the voltage multiplier is easily integrated into a tag chip using a complementary metal-oxide semiconductor (CMOS) process, the size of the tag does not increase and it is easy to package an antenna and the tag chip.

摘要翻译： 提供了一种将交流（AC）电磁波转换成射频识别（RFID）标签中的直流（DC）电压信号的电压倍增器，并且包括用于获得电压增益的装置，该装置通过 交流电磁波被输入。 在相同的输入功率下，电压倍增器可以产生比常规电压倍增器更大的直流输出电压。 因此，可以在低输入功率下获得期望的DC输出电压，从而可以提高有效的操作距离。 此外，由于使用互补金属氧化物半导体（CMOS）工艺容易地将电压倍增器集成到标签芯片中，因此标签的尺寸不增加，并且易于封装天线和标签芯片。