利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

279 条记录 (耗时 0.031 秒)

    Organic light emitting device and flat display including the same
    71.
    发明授权
    Organic light emitting device and flat display including the same 有权
    有机发光装置和包括其的平面显示器

    公开(公告)号：US07868321B2

    公开(公告)日：2011-01-11

    申请号：US11655590

    申请日：2007-01-18

    申请人： Chang-Ho Lee ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Jung-Han Shin ,  Hee-Joo Ko

    发明人： Chang-Ho Lee ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Jung-Han Shin ,  Hee-Joo Ko

    IPC分类号： H01L51/54 ,  C09K11/06

    CPC分类号： H01L51/5036 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/0085

    摘要： Provided are an organic light emitting device (OLED) and a flat display including the OLED. The OLED includes an organic layer which includes a pixel electrode, an opposite electrode, and at least an emission layer between the pixel electrode and the opposite electrode, wherein the emission layer includes a long wavelength-blue emission layer emitting blue light having a long wavelength and a short wavelength-blue emission layer emitting blue light having a short wavelength. The long wavelength-blue emission layer is positioned in a location to enhance emission of blue light from the emission layer. The OLED can emit blue light with high efficiency and high brightness.

    摘要翻译： 提供有机发光器件（OLED）和包括OLED的平面显示器。 OLED包括有机层，其包括像素电极，相对电极和至少在像素电极和相对电极之间的发射层，其中发射层包括发射具有长波长的蓝色光的长波长蓝色发射层 以及短波长蓝色发射层，其发射具有短波长的蓝色光。 长波长蓝色发射层位于一个位置以增强来自发射层的蓝光的发射。 OLED可以以高效率和高亮度发射蓝光。

    Systems, methods, and apparatuses for linear polar transmitters
    72.
    发明授权
    Systems, methods, and apparatuses for linear polar transmitters 失效
    用于线性极性发射器的系统，方法和装置

    公开(公告)号：US07860466B2

    公开(公告)日：2010-12-28

    申请号：US11754112

    申请日：2007-05-25

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H04B1/04

    CPC分类号： H03F1/3282 ,  H03F1/0211 ,  H03F2200/324 ,  H03F2200/393 ,  H03F2200/504 ,  H04L27/361 ,  H04L27/368

    摘要： Systems and methods are disclosed for providing a linear polar transmitter. The systems and methods may include generating an input amplitude signal and an input phase signal, where the input amplitude signal and the input phase signal are orthogonal components of an input signal, and where the input amplitude signal and the input phase signal are generated on respective first and second signal paths. The systems and methods may also include processing the input amplitude signal along the first signal path using an amplitude error signal to generate a predistorted amplitude signal, and processing the input phase signal along the second signal path using an phase error signal to generate a predistorted phase signal. The systems and methods may also include providing the predistorted amplitude signal along the first signal path and the predistorted phase signal along the second signal path to a power amplifier to generate an output signal, where the amplitude error signal is generated from a comparison of at least an amplitude portion of the output signal with the predistorted amplitude signal and where the phase error signal is generated from a comparison of at least a phase portion of the output signal with the predistorted phase signal.

    摘要翻译： 公开了用于提供线性极化发射器的系统和方法。 系统和方法可以包括产生输入幅度信号和输入相位信号，其中输入幅度信号和输入相位信号是输入信号的正交分量，并且其中输入幅度信号和输入相位信号在相应的 第一和第二信号路径。 系统和方法还可以包括使用幅度误差信号来处理沿着第一信号路径的输入幅度信号，以产生预失真振幅信号，并使用相位误差信号来处理沿第二信号路径的输入相位信号，以产生预失真相位 信号。 系统和方法还可以包括沿着第一信号路径提供预失真振幅信号，以及沿着第二信号路径向功率放大器提供预失真相位信号以产生输出信号，其中从至少比较产生振幅误差信号 具有预失真振幅信号的输出信号的振幅部分，并且其中通过将输出信号的至少相位部分与预失真相位信号进行比较来产生相位误差信号。

    Systems and methods for switching mode power amplifier control
    74.
    发明授权
    Systems and methods for switching mode power amplifier control 有权
    用于开关模式功率放大器控制的系统和方法

    公开(公告)号：US07768353B2

    公开(公告)日：2010-08-03

    申请号：US12138965

    申请日：2008-06-13

    申请人： Jaejoon Chang ,  Ki Seok Yang ,  Kyu Hwan An ,  Wangmyong Woo ,  Chang-Ho Lee ,  Younsuk Kim ,  Hyogun Bae ,  Kijoong Kim ,  Shinichi Iizuka

    发明人： Jaejoon Chang ,  Ki Seok Yang ,  Kyu Hwan An ,  Wangmyong Woo ,  Chang-Ho Lee ,  Younsuk Kim ,  Hyogun Bae ,  Kijoong Kim ,  Shinichi Iizuka

    IPC分类号： H03G3/10

    CPC分类号： H03F1/0272 ,  H03F3/24 ,  H03F2200/408 ,  H03F2200/411 ,  H03F2200/462

    摘要： Embodiments of the invention may provide for enhancement systems and methods for a power amplifier output control system. In an example embodiment, driver amplifier control may be provided in conjunction with power amplifier control to improve the power efficiency and/or dynamic range of the transmitter system. Furthermore, control over the driver amplifier may allow for relaxed power control slope, which may lessens the burden of digital to analog converters (DACs) in transmitter systems such as cellular transmitter systems. Also, systems and methods in accordance with example embodiments of the invention may provide a less sensitive solution to operational environment variations such as temperature, battery power voltage and implementation IC process.

    摘要翻译： 本发明的实施例可以提供用于功率放大器输出控制系统的增强系统和方法。 在示例实施例中，可以结合功率放大器控制来提供驱动器放大器控制，以提高发射机系统的功率效率和/或动态范围。 此外，对驱动器放大器的控制可以允许松弛的功率控制斜率，这可以减轻诸如蜂窝发射机系统的发射机系统中的数模转换器（DAC）的负担。 而且，根据本发明的示例性实施例的系统和方法可以提供对诸如温度，电池电源电压和实施IC过程的操作环境变化的较不敏感的解决方案。

    Systems and methods for determining sensing thresholds of a multi-resolution spectrum sensing (MRSS) technique for cognitive radio (CR) systems
    75.
    发明授权
    Systems and methods for determining sensing thresholds of a multi-resolution spectrum sensing (MRSS) technique for cognitive radio (CR) systems 有权
    用于确定用于认知无线电（CR）系统的多分辨率频谱感测（MRSS）技术的感测阈值的系统和方法

    公开(公告)号：US07768252B2

    公开(公告)日：2010-08-03

    申请号：US12034570

    申请日：2008-02-20

    申请人： Jongmin Park ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

    发明人： Jongmin Park ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

    IPC分类号： G01R23/00

    CPC分类号： H04W8/005 ,  H04W16/14 ,  H04W16/22

    摘要： Systems and methods may be provided for threshold determinations for spectrum sensing. The systems and methods may include receiving a false alarm rate, where the false alarm rate is associated with false occupancy identifications of a spectrum segment, determining a noise floor as a function of a noise figure and characteristics of a multi-resolution spectrum sensing (MRSS) window, and calculating a sensing threshold based at least in part upon the false alarm rate and the noise floor. The systems and methods may also include determining whether a portion of an RF spectrum is occupied based at least in part on the calculated sensing threshold.

    摘要翻译： 可以提供用于频谱感测的阈值确定的系统和方法。 系统和方法可以包括接收误报率，其中误报率与频谱段的假占用标识相关联，确定作为噪声系数和多分辨率频谱感测特性（MRSS）的函数的本底噪声 ）窗口，并且至少部分地基于所述误报率和所述本底噪声来计算感测阈值。 系统和方法还可以包括至少部分地基于所计算的感测阈值来确定RF频谱的一部分是否被占用。

    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters
    78.
    发明申请
    Systems, Methods, and Apparatuses for Linear Envelope Elimination and Restoration Transmitters 有权
    线性包络消除和恢复发射机的系统，方法和装置

    公开(公告)号：US20090174473A1

    公开(公告)日：2009-07-09

    申请号：US12406183

    申请日：2009-03-18

    申请人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    发明人： Wangmyong Woo ,  Chang-Ho Lee ,  Jaejoon Chang ,  Haksun Kim

    IPC分类号： H03F3/38

    CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H03F2200/99 ,  H03F2201/3233 ,  H04L27/361 ,  H04L27/368

    摘要： Systems, methods, and apparatuses are provided for linear envelope elimination and restoration transmitters that are based on the polar modulation operating in conjunction with the orthogonal recursive predistortion technique. The polar modulation technique enhances the battery life by dynamically adjusting the bias level. Further, the analog orthogonal recursive predistortion efficiently corrects amplitude and phase errors in radio frequency (RF) power amplifiers (PA) and enhances the PA output capability. Additionally, even-order distortion components are used to predistort the input signal in a multiplicative manner so that the effective correction bandwidth is greatly enhanced. Also, the predistortion scheme, which uses instantaneously feed-backed envelope distortion signals, allows for correction of any distortion that may occur within the correction loop bandwidth, including envelope memory effects.

    摘要翻译： 提供了基于与正交递归预失真技术相结合的极坐标调制的线性包络消除和恢复发射机的系统，方法和装置。 极性调制技术通过动态调整偏置电平来提高电池寿命。 此外，模拟正交递归预失真有效地校正射频（RF）功率放大器（PA）中的幅度和相位误差，并增强了PA输出能力。 另外，偶数阶失真分量被用来以乘法方式对输入信号进行预失真，从而大大增强了有效的校正带宽。 此外，使用瞬时反馈包络失真信号的预失真方案允许校正可能发生在校正环路带宽内的任何失真，包括包络记忆效应。

    Heteroaromatic cycle-containing compound, method of preparing the same and organic light emitting device comprising the same
    79.
    发明申请
    Heteroaromatic cycle-containing compound, method of preparing the same and organic light emitting device comprising the same 审中-公开
    含杂芳环的化合物，其制备方法和包含该化合物的有机发光器件

    公开(公告)号：US20090153035A1

    公开(公告)日：2009-06-18

    申请号：US12213097

    申请日：2008-06-13

    申请人： Jung-Han Shin ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Chang-Ho Lee ,  Hee-Joo Ko

    发明人： Jung-Han Shin ,  Seung-Gak Yang ,  Hee-Yeon Kim ,  Chang-Ho Lee ,  Hee-Joo Ko

    IPC分类号： H01J1/63 ,  C07D471/04 ,  C07D487/04

    CPC分类号： H01L51/0054 ,  C07D471/04 ,  C07D487/04 ,  H01L51/0072 ,  H01L51/5048 ,  H01L2251/308

    摘要： Provided are a heteroaromatic cycle-containing compound used for an organic light emitting diode, represented by Formula 1: wherein X is N or C; Ar1 is a phenyl group, a C6-C20 aryl group, a C7-C20 arylalkyl group, a C7-C20 arylalkoxy group, a C6-C20 arylamino group, a C6-C20 heteroarylamino group, or a C2-C20 hetero ring group; and Ar2, Ar3 and Ar4 are each independently hydrogen, a cyano group, a hydroxyl group, a nitro group, halogen, phenyl, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C7-C20 arylalkyl group, a C2-C20 alkylalkoxy group, a C7-C20 arylalkoxy group, a C6-C20 arylamino group, a C1-C20 alkylamino group, a C6-C20 heteroarylamino group, or a C2-C20 hetero ring group, wherein, when X is N, Ar4 is a lone electron pair, and when X is C, Ar3 and Ar4 are alternatively bound together to form a carbon ring.

    摘要翻译： 提供了用于由式1表示的有机发光二极管的含杂芳基的化合物：其中X是N或C; Ar1是苯基，C6-C20芳基，C7-C20芳烷基，C7-C20芳基烷氧基，C6-C20芳基氨基，C6-C20杂芳基氨基或C2-C20杂环基团; Ar2，Ar3和Ar4各自独立地为氢，氰基，羟基，硝基，卤素，苯基，C1-C20烷基，C1-C20烷氧基，C6-C20芳基，C7 -C 20芳烷基，C 2 -C 20烷基烷氧基，C 7 -C 20芳烷氧基，C 6 -C 20芳基氨基，C 1 -C 20烷基氨基，C 6 -C 20杂芳基氨基或C 2 -C 20杂环基，其中 当X为N时，Ar4为单电子对，当X为C时，Ar 3和Ar 4交替地结合在一起形成碳环。

    Heterocyclic compound and an organic light emitting device comprising the same
    80.
    发明申请
    Heterocyclic compound and an organic light emitting device comprising the same 有权
    杂环化合物和包含它们的有机发光器件

    公开(公告)号：US20090128013A1

    公开(公告)日：2009-05-21

    申请号：US12180015

    申请日：2008-07-25

    申请人： Seok-Hwan Hwang ,  Young-Kook Kim ,  Yoon-Hyun Kwak ,  Chang-Ho Lee

    发明人： Seok-Hwan Hwang ,  Young-Kook Kim ,  Yoon-Hyun Kwak ,  Chang-Ho Lee

    IPC分类号： H01L51/52 ,  C07D487/14 ,  C07D401/14

    CPC分类号： H01L51/0072 ,  C07D487/04 ,  H01L51/0081 ,  H01L51/5012

    摘要： A heterocyclic compound represented by Formula 1 below: X is selected from the group consisting of nitrogen, boron, and phosphorous; and Ar1, Ar2, Ar3 and Ar4 are each independently selected from the group consisting of a C6-C30 substituted or unsubstituted aryl group, a C6-C30 substituted or unsubstituted aryloxy group, a C4-C20 substituted or unsubstituted heterocyclic group, and a C6-C20 fused polycyclic group.The heterocyclic compound can be included in emission layers of top emission and bottom emission organic light emitting devices.

    摘要翻译： 由下式1表示的杂环化合物：X选自氮，硼和磷; Ar 1，Ar 2，Ar 3和Ar 4各自独立地选自C 6 -C 30取代或未取代的芳基，C 6 -C 30取代或未取代的芳氧基，C 4 -C 20取代或未取代的杂环基和C 6 -C 20稠合多环基团。 杂环化合物可以包括在顶部发射和底部发射有机发光器件的发射层中。