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    • 11. 发明申请
    • Method for preparing oxytitanium phthalocyanine chartge generating material and apparatus for preparing the same
    • 氧钛酞菁生成材料的制备方法及其制备方法
    • US20070122725A1
    • 2007-05-31
    • US10574797
    • 2004-10-07
    • Jong Ho KwonKi JungWoo SonSeong ParkJin KoHyun Jung
    • Jong Ho KwonKi JungWoo SonSeong ParkJin KoHyun Jung
    • C07D487/22H05B6/64
    • C09B67/0026C07D487/22G03G5/051G03G5/0525G03G5/0696H05B6/74
    • Disclosed herein are a method and an apparatus for preparing oxytitanium phthalocyanine as a charge generating material. The method comprises the steps of homogeneously mixing an oxytitanium phthalocyanine crude with an organic solvent while microwave energy having a frequency of 0.1˜100 GHz and a power of 10˜3,000 W and ultrasonic wave energy having a frequency of 1˜1,000 kHz and a power of 10˜5,000 W are applied thereto, and reacting the mixture at 30˜100° C. for 0.5˜5 hours. The apparatus comprises: a magnetron 1 capable of generating a frequency of 0.1˜100 GHz and a power of 100˜3,000 W; a mode stirrer 3 for making the wavelength of microwaves uniform in a microwave container 2; a PID type temperature controller 9 for accurately measurement and controlling the temperature of reactants; a K-type thermocouple shielded from microwaves 4; a condenser 5; an agitator 6, the thermocouple 4, the condenser 5 and the agitator 6 being inserted into three openings formed at a top of the microwave container 2; an ultrasonic tip 7 inserted into an opening formed at a bottom of the microwave container 2; a Pyrex container 9 into which the reactants are introduced; and a solvent tank 10. According to the method and the apparatus, an oxytitanium phthalocyanine charge generating material having superior thermal stability and crystal stability can be prepared in an efficient manner.
    • 本文公开了一种制备氧钛酞菁作为电荷产生材料的方法和装置。 该方法包括以下步骤:将氧钛酞菁粗品与有机溶剂均匀混合,同时具有频率为0.1〜100GHz,功率为10〜3000W的微波能量,频率为1〜1000kHz的超声波能量和功率 施加10〜5000W,使混合物在30〜100℃下反应0.5〜5小时。 该装置包括:能够产生0.1〜100GHz的频率和100〜3000W的功率的磁控管1; 用于使微波波长在微波容器2中均匀的模式搅拌器3; 用于精确测量和控制反应物温度的PID型温度控制器9; 与微波屏蔽的K型热电偶4; 冷凝器5; 搅拌器6,热电偶4,冷凝器5和搅拌器6插入形成在微波容器2的顶部的三个开口中; 插入到形成在微波容器2的底部的开口中的超声波尖端7; 其中引入反应物的Pyrex容器9; 和溶剂罐10。 根据该方法和装置,可以有效地制备具有优异热稳定性和晶体稳定性的氧钛酞菁电荷产生材料。
    • 12. 发明申请
    • Method and apparatus for providing dual variable clocks for low-power wireless packet communication
    • 提供用于低功率无线分组通信的双可变时钟的方法和装置
    • US20060203741A1
    • 2006-09-14
    • US11299203
    • 2005-12-09
    • Jeen HurSun KimByung KimSeong ParkSang HanHoo Lee
    • Jeen HurSun KimByung KimSeong ParkSang HanHoo Lee
    • H04J1/16H04Q7/24
    • H04W52/0293Y02D70/142Y02D70/144Y02D70/146
    • 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.
    • 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。
    • 13. 发明申请
    • Display image enhancement apparatus and method using adaptive interpolation with correlation
    • 显示图像增强装置和使用自相关插值的相关方法
    • US20050163401A1
    • 2005-07-28
    • US10765130
    • 2004-01-28
    • Seong ParkJeremy MahHiroshi Kanekura
    • Seong ParkJeremy MahHiroshi Kanekura
    • G06K9/40G06T3/40H04N5/44H04N7/01
    • G06T3/4007H04N7/012
    • A display image enhancement apparatus and method are disclosed for use in generating additional pixel data from input image data, where a window of input pixel data is used to generate data for an additional pixel to be placed substantially in the center of the window. The display image enhancement apparatus includes memory elements that is capable of receiving a chain of input pixel data and storing at least the window of input pixel data, where the window of input pixels includes a plurality of pixel pairs each of which respectively represents an angle of correlation. The display image enhancement apparatus also includes instant angle detection circuitry capable of receiving the input pixel data stored in the memory elements and determining an instant angle having the highest correlation based on differential values of at least some of the pixel pairs, where a differential value is the difference between the values of pixels in a pixel pair. The display image enhancement apparatus further includes substantial angle detection circuitry capable of determining a substantial angle having the highest correlation based on filtered differential values of at least some of the pixel pairs. Angle confirmation circuitry is provided to determine an interpolation angle based on the instant angle and the substantial angle. The display image enhancement apparatus employs an interpolator that is capable of determining the value of the additional pixel based on the values of pixels in the pixel pair corresponding to the interpolation angle.
    • 公开了用于从输入图像数据生成附加像素数据的显示图像增强装置和方法,其中使用输入像素数据的窗口来生成用于基本上位于窗口中心的附加像素的数据。 显示图像增强装置包括能够接收输入像素数据链并且至少存储输入像素数据的窗口的存储元件,其中输入像素的窗口包括多个像素对,每个像素对分别表示 相关性。 显示图像增强装置还包括能够接收存储在存储元件中的输入像素数据的瞬时角度检测电路,并且基于至少一些像素对的差分值来确定具有最高相关性的瞬时角度,其中微分值为 像素对中的像素值之间的差异。 显示图像增强装置还包括基本角度检测电路,其能够基于至少一些像素对的经滤波的差分值来确定具有最高相关性的实质角度。 角度确认电路被提供以基于即时角度和实质角度确定插值角度。 显示图像增强装置使用能够基于与插值角对应的像素对中的像素的值来确定附加像素的值的内插器。
    • 15. 发明申请
    • Low-cost motion estimation apparatus and method thereof
    • 低成本运动估计装置及其方法
    • US20070133689A1
    • 2007-06-14
    • US11545296
    • 2006-10-10
    • Seong ParkHan ChoHee Jung
    • Seong ParkHan ChoHee Jung
    • H04N11/02H04N11/04
    • H04N19/57H04N19/423H04N19/43
    • Provided are motion estimation algorithm development and design of a structure for implementing hardware of a motion estimator. A hardware structure that simultaneously satisfies MPEG-4 and H.264 standards and requires less hardware is provided. The provided structure is applicable to both MPEG-4 and H.264 using one hardware device according to the mode (MPEG-4 or H.264). The motion estimation apparatus includes: a sampling portion for sampling image data in units of blocks and generating sampling blocks; a block division/address generator for dividing the sampling blocks into sampling sub-blocks and generating addresses for motion estimation calculation; and a motion calculator for calculating motion using a motion estimation function for each sub-block.
    • 提供了用于实现运动估计器的硬件的结构的运动估计算法开发和设计。 提供同时满足MPEG-4和H.264标准并且需要较少硬件的硬件结构。 所提供的结构适用于使用根据模式(MPEG-4或H.264)的一个硬件设备的MPEG-4和H.264两者。 运动估计装置包括:采样部分,用于以块为单位对图像数据进行采样并产生采样块; 块分割/地址发生器,用于将采样块划分成采样子块并产生用于运动估计计算的地址; 以及运动计算器,用于使用每个子块的运动估计函数来计算运动。
    • 16. 发明申请
    • High-efficiency mixed-mode power amplifier
    • 高效率混合模式功率放大器
    • US20070085602A1
    • 2007-04-19
    • US11482576
    • 2006-07-07
    • Min ParkYun ChoiKyung ParkSeok HyunSeong Park
    • Min ParkYun ChoiKyung ParkSeok HyunSeong Park
    • H03F1/14H03F3/68
    • H03F1/0222H03F1/0277
    • 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.
    • 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。
    • 17. 发明申请
    • Program method of flash memory device
    • 闪存设备的程序方法
    • US20060268620A1
    • 2006-11-30
    • US11304433
    • 2005-12-14
    • Seong ParkSeung Chang
    • Seong ParkSeung Chang
    • G11C11/34
    • G11C16/12G11C16/3454G11C16/3459
    • The present invention relates to a method of programming a flash memory device. According to the present invention, after a program operation is completed, a program verify operation is repeatedly performed, wherein a threshold voltage of a programmed memory cell is also detected. If there are memory cells whose threshold voltage becomes low as a result of the detection, the program operation is again performed on a corresponding memory cell. It is thus possible to obtain a uniform distribution characteristic of a threshold voltage. Furthermore, a program verify operation is performed with a compare voltage being set higher than a target voltage initially so that a threshold voltage of a memory cell is sufficiently higher than the target voltage. The program verify operation is again performed while lowering the compare voltage according to the repetition number. It is thus possible to prevent normally programmed cells from being again excessively programmed.
    • 本发明涉及一种编程闪速存储器件的方法。 根据本发明,在程序操作完成之后,重复执行程序验证操作,其中也检测到编程的存储器单元的阈值电压。 如果存在作为检测结果的阈值电压变低的存储单元,则对相应的存储单元再次执行编程操作。 因此可以获得阈值电压的均匀分布特性。 此外,在比较电压被初始设定为高于目标电压的情况下执行编程验证操作,使得存储单元的阈值电压足够高于目标电压。 再次执行程序验证操作,同时根据重复次数降低比较电压。 因此可以防止正常编程的单元格再次过度编程。
    • 18. 发明申请
    • Cycle time synchronization apparatus and method for wireless 1394 system
    • 无线1394系统的周期时间同步装置和方法
    • US20060126671A1
    • 2006-06-15
    • US11260591
    • 2005-10-27
    • Seong ParkSangsung ChoiKwang Park
    • Seong ParkSangsung ChoiKwang Park
    • H04J3/16H04J3/06
    • H04J3/0676H04J3/0638
    • A cycle time synchronization apparatus for a wireless 1394 system having one wireless 1394 intermediary and at least one wireless 1394 slave, the apparatus including: a cycle time generator for generating a cycle time by a predetermined clock signal; a cycle time register synchronized to a beacon inputted, and storing the cycle time from the cycle time generator; a cycle time temporary storage unit for storing the cycle time of the cycle time register and cycle times generated from other devices; a cycle time management unit for managing calculation and control operations of the cycle times of the cycle time register and the cycle time temporary storage unit; and a cycle time controller for controlling the cycle time by the cycle time management unit.
    • 一种具有一个无线1394中间和至少一个无线1394从机的无线1394系统的周期时间同步装置,该装置包括:周期时间发生器,用于通过预定时钟信号产生周期时间; 与输入的信标同步的周期时间寄存器,存储来自周期时间发生器的周期时间; 周期时间临时存储单元,用于存储从其他设备产生的周期时间寄存器和周期时间的周期时间; 周期时间管理单元,用于管理周期时间寄存器和周期时间临时存储单元的周期时间的计算和控制操作; 以及循环时间控制器,用于通过循环时间管理单元控制循环时间。
    • 19. 发明申请
    • Low power digital circuit for RFID tag
    • 用于RFID标签的低功率数字电路
    • US20060109087A1
    • 2006-05-25
    • US11123002
    • 2005-05-06
    • Sun KimSang LeeKyung ParkSeong Park
    • Sun KimSang LeeKyung ParkSeong Park
    • H04Q5/22
    • G06K19/0723
    • Provided is a digital circuit for a passive RFID tag. The digital circuit for the passive RFID tag includes a construction that is divided into blocks, which receive a command, analyze and execute the command, and generate a reply signal respectively, according to the flow of data. Thus, the digital circuit transmits a clock signal to each of the blocks at a rate optimized for the block such that the blocks sequentially operate without any additional controller. The digital circuit for the RFID tag is constructed such that the respective blocks operate at different points in time. This precludes any useless operation of hardware, thus reducing the entire power dissipation.
    • 提供了一种用于无源RFID标签的数字电路。 无源RFID标签的数字电路包括根据数据流分为接收命令,分析和执行命令并分别生成应答信号的块的结构。 因此,数字电路以对于块优化的速率向每个块发送时钟信号,使得块在没有任何附加控制器的情况下顺序操作。 用于RFID标签的数字电路被构造成使得各个块在不同的时间点运行。 这排除了硬件的任何无用的操作,从而减少了整个功耗。