公开(公告)号：USRE44621E1

公开(公告)日：2013-12-03

申请号：US13162389

申请日：2011-06-16

申请人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

发明人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

IPC分类号： H04J1/00

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：US20130051209A1

公开(公告)日：2013-02-28

申请号：US13599473

申请日：2012-08-30

申请人： Seong-su PARK ,  Soo-han PARK ,  Woo-chang CHUN

发明人： Seong-su PARK ,  Soo-han PARK ,  Woo-chang CHUN

IPC分类号： G11B7/1353 ,  G02B5/18 ,  G02B3/00 ,  G11B7/1374 ,  G11B7/1376

CPC分类号： G11B7/1381 ,  G02B5/1814 ,  G02B13/005 ,  G02B13/0055 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

摘要： An objective lens for optical pickup and an optical pickup apparatus having the same are provided. The objective lens for optical pickup includes a light source side lens surface and a disc side lens surface. The light source side lens surface and the disc side lens surface each include an effective region disposed at a central region of the objective lens and a non-effective region disposed outside the effective region. An optical path changing element, disposed in the non-effective region of at least one of the light source side lens surface and the disc side lens surface, changes a path of light incident thereon.

摘要翻译： 提供了一种用于光学拾取器的物镜和具有该物镜的光学拾取装置。 用于光学拾取器的物镜包括光源侧透镜表面和盘侧透镜表面。 光源侧透镜表面和盘侧透镜表面各自包括设置在物镜的中心区域的有效区域和设置在有效区域外的非有效区域。 设置在光源侧透镜表面和盘侧透镜表面中的至少一个的非有效区域中的光路改变元件改变入射到其上的光的路径。

公开(公告)号：US20120176881A1

公开(公告)日：2012-07-12

申请号：US13303393

申请日：2011-11-23

申请人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

发明人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

IPC分类号： G11B7/135

CPC分类号： G11B7/1365 ,  G11B7/1398

摘要： An optical pickup device is provided. The device includes a semiconductor laser light source which outputs linearly-polarized light having an elliptical shape, an objective lens which focuses light outputted from the semiconductor laser light source, forming an optical spot on an optical disc; and a polarization plate which is disposed placed on an optical path between the semiconductor laser light source and the objective lens, and which polarizes the light outputted from the semiconductor laser light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to or perpendicular to a major axis of the elliptical shape of the light.

摘要翻译： 提供一种光拾取装置。 该装置包括输出具有椭圆形的线偏振光的半导体激光光源，聚焦从半导体激光光源输出的光的物镜，在光盘上形成光点; 以及偏振板，其设置在所述半导体激光光源与所述物镜之间的光路上，使从所述半导体激光光源输出的光偏振并透射椭圆偏振光，其中，所述偏光板配置为 由偏振板透射的光的椭圆偏振的长轴平行于或垂直于光的椭圆形的长轴。

公开(公告)号：US20100210238A1

公开(公告)日：2010-08-19

申请号：US12767277

申请日：2010-04-26

申请人： Sung Rae Cho ,  Byung Jo Kim ,  Seong Su Park

发明人： Sung Rae Cho ,  Byung Jo Kim ,  Seong Su Park

IPC分类号： H04W60/00 ,  H04W4/24

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

摘要： A terminal supporting peer-to-peer (P2P) communication, wherein 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. More particularly, when a receiving channel state becomes satisfactory while communication with an adjacent terminal is being performed via a base station, the terminal directly 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 directly switches to a base station communication mode and performs communication with the adjacent terminal.

摘要翻译： 一种支持对等（P2P）通信的终端，其中终端的收发机被实现为支持与同一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。 更具体地，当通过基站进行与相邻终端的通信时，当接收信道状态变得令人满意时，终端直接切换到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，终端直接切换到基站通信模式并与相邻终端进行通信。

公开(公告)号：US07734292B2

公开(公告)日：2010-06-08

申请号：US11518819

申请日：2006-09-11

申请人： Sung Rae Cho ,  Byung Jo Kim ,  Seong Su Park

发明人： Sung Rae Cho ,  Byung Jo Kim ,  Seong Su Park

IPC分类号： H04W36/00

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

摘要： A terminal supporting peer-to-peer (P2P) communication, wherein 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. More particularly, when a receiving channel state becomes satisfactory while communication with an adjacent terminal is being performed via a base station, the terminal directly 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 directly switches to a base station communication mode and performs communication with the adjacent terminal.

摘要翻译： 一种支持对等（P2P）通信的终端，其中终端的收发机被实现为支持与同一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。 更具体地，当通过基站进行与相邻终端的通信时，当接收信道状态变得令人满意时，终端直接切换到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，终端直接切换到基站通信模式并与相邻终端进行通信。

公开(公告)号：US07492226B2

公开(公告)日：2009-02-17

申请号：US11644066

申请日：2006-12-22

申请人： Young-Ho Kim ,  Seong-Su Park

发明人： Young-Ho Kim ,  Seong-Su Park

IPC分类号： H03F3/45

CPC分类号： H03F3/45188 ,  H03F1/3211 ,  H03F3/45659 ,  H03F2200/513 ,  H03F2203/45056 ,  H03F2203/45288 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45352 ,  H03F2203/45364 ,  H03F2203/45374 ,  H03F2203/45392 ,  H03F2203/45394 ,  H03F2203/45481 ,  H03F2203/45642 ,  H03F2203/45681

摘要： Provided is a linearization apparatus of a triode region type operational transconductance amplifier that can provide a wide linear input range even when a differential pair input transistor having a short channel length is used at a low power supply voltage. The linearization apparatus of the triode region type operational transconductance amplifier includes: a first transconductor unit for receiving differential pair input voltages through differential pair input transistors and generating a basic transconductance; and a second transconductor unit for receiving the same differential pair input voltages, generating distortion transconductances, and overlapping the basic transconductace with the distortion transconductance for extending a linear range of a final transconductance.

摘要翻译： 提供了即使在低电源电压下使用具有短沟道长度的差分对输入晶体管时，也可以提供宽线性输入范围的三极管区域型工作跨导放大器的线性化装置。 三极管型运算跨导放大器的线性化装置包括：第一跨导单元，用于通过差分对输入晶体管接收差分对输入电压并产生基本跨导; 以及第二跨导单元，用于接收相同的差分对输入电压，产生失真跨导，并且将所述基本跨导与所述失真跨导重叠以延伸最终跨导的线性范围。

公开(公告)号：US07336645B2

公开(公告)日：2008-02-26

申请号：US10699179

申请日：2003-10-30

申请人： Jeen Hur ,  Sang Baek Han ,  Hoo Sung Lee ,  Byung Jo Kim ,  Sung Pack Hong ,  Seong Su Park

发明人： Jeen Hur ,  Sang Baek Han ,  Hoo Sung Lee ,  Byung Jo Kim ,  Sung Pack Hong ,  Seong Su Park

IPC分类号： H04J3/06 ,  H04Q7/24

CPC分类号： H04L12/66

摘要： The present invention relates to a Bluetooth-IP access system, and provides the Bluetooth-IP access system capable of performing broadband, large capacity and fast access by providing a Bluetooth-IP accessing device and a Bluetooth terminal with a module supporting broadband, large capacity, and fast search mounted therein.

摘要翻译： 蓝牙IP接入系统技术领域本发明涉及一种蓝牙IP接入系统，并且提供能够通过提供蓝牙-IP接入设备和蓝牙终端来执行宽带，大容量和快速接入的蓝牙IP接入系统，该蓝牙终端具有支持宽带，大容量 ，并快速搜索。

公开(公告)号：US07254098B2

公开(公告)日：2007-08-07

申请号：US10677731

申请日：2003-10-03

申请人： Jung-gug Pae ,  Bong-gi Kim ,  Chun-seong Park ,  Soo-han Park ,  Moon-whan Lee ,  Do-whan Nam ,  Seong-su Park ,  Jung-woo Hong ,  Tae-youn Heor

发明人： Jung-gug Pae ,  Bong-gi Kim ,  Chun-seong Park ,  Soo-han Park ,  Moon-whan Lee ,  Do-whan Nam ,  Seong-su Park ,  Jung-woo Hong ,  Tae-youn Heor

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/0932 ,  G11B2007/0006

摘要： A CD-DVD compatible optical pickup in which both on-axis and off-axis light form a circular light spot on a recording surface of an optical recording medium, and an optical recording and/or reproducing apparatus using the same. The CD-DVD compatible optical pickup includes an optical output module, an objective lens, an optical path conversion unit, a photodetector, and an actuator. The optical output module has a mount and light sources emitting light of different wavelengths. The objective lens focuses the emitted light onto two types of optical recording media. The optical path conversion unit between the optical output module and objective lens, converts incident light. The photodetector receives beams emitted from the light sources, reflected from the optical recording media, and then passed through the optical path conversion unit, detecting data and error signals. The actuator has a movable member, moving the objective lens and compensating focusing and tracking error signals.

摘要翻译： 在光记录介质的记录表面上的同轴和离轴光都形成圆形光点的CD-DVD兼容光学拾取器，以及使用该光拾取器的光学记录和/或再现装置。 CD-DVD兼容光学拾取器包括光输出模块，物镜，光路转换单元，光电检测器和致动器。 光输出模块具有发射不同波长的光的安装座和光源。 物镜将发射的光聚焦到两种类型的光学记录介质上。 光输出模块和物镜之间的光路转换单元转换入射光。 光电检测器接收从光记录介质反射的光源发出的光束，然后通过光路转换单元，检测数据和误差信号。 致动器具有可动构件，移动物镜并补偿聚焦和跟踪误差信号。

公开(公告)号：US20070127560A1

公开(公告)日：2007-06-07

申请号：US11588456

申请日：2006-10-27

申请人： Tae Young Kang ,  Kyung Hwan Park ,  Seong Su Park

发明人： Tae Young Kang ,  Kyung Hwan Park ,  Seong Su Park

IPC分类号： H04L5/16 ,  G08B13/14

CPC分类号： H04L27/06 ,  H03D1/10 ,  H04L25/061

摘要： Provided is a demodulator circuit allowing a tag or transponder to efficiently recover data of an input amplitude signal at very low power in a wireless communication system such as a radio frequency identification (RFID) system. The demodulator connects an output of a voltage multiplier to a low-current path by capacitive coupling, thereby recovering data. Therefore, data is recovered, at low power, from an input amplitude signal having a low modulation depth, and it is possible to increase a communication distance.

摘要翻译： 提供了一种解调器电路，其允许标签或应答器在诸如射频识别（RFID）系统的无线通信系统中以非常低的功率有效地恢复输入幅度信号的数据。 解调器通过电容耦合将电压倍增器的输出连接到低电流路径，从而恢复数据。 因此，以低功率从具有低调制深度的输入幅度信号恢复数据，并且可以增加通信距离。

公开(公告)号：US07053666B2

公开(公告)日：2006-05-30

申请号：US11023379

申请日：2004-12-29

申请人： Geum-Young Tak ,  Seok-Bong Hyun ,  Kyung-Hwan Park ,  Tae-Young Kang ,  Seong-Su Park

发明人： Geum-Young Tak ,  Seok-Bong Hyun ,  Kyung-Hwan Park ,  Tae-Young Kang ,  Seong-Su Park

IPC分类号： G01R25/00 ,  H03D13/00

CPC分类号： H03L7/0891 ,  H03D13/004

摘要： Provided is a phase frequency detector for use in a phase locked loop (PLL) or a delay locked loop (DLL), the phase frequency detector including: an UP signal output unit having a first stage operated according to a reference clock delayed by a predetermined time and a reset signal, a second stage operated according to the reference clock and an output of the first stage, and an inverter for inverting an output of the second stage; a DOWN signal output unit having: a first stage operated according to an outer clock delayed by a predetermined time and the reset signal, a second stage operated according to the outer clock and an output of the first stage, and an inverter for inverting an output of the second stage; and a logic gate logically combining the output of the second stage of the UP signal output unit and the output of the second stage of the DOWN signal output unit to generate the reset signal, thereby a phase range of the input signal with which an effective control signal can be obtained is wide so that low power consumption and low noise characteristics can be obtained due to fast phase lock, low power consumption of a dynamic logic, and fast signal transmission.

摘要翻译： 提供了一种用于锁相环（PLL）或延迟锁定环（DLL）的相位频率检测器，所述相位频率检测器包括：UP信号输出单元，具有根据延迟预定值的参考时钟操作的第一级 时间和复位信号，根据参考时钟操作的第二级和第一级的输出;以及用于反转第二级的输出的反相器; DOWN信号输出单元，具有：根据延迟预定时间的外部时钟和复位信号操作的第一级，根据外部时钟操作的第二级和第一级的输出;以及用于将输出 的第二阶段 逻辑门逻辑地组合UP信号输出单元的第二级的输出和DOWN信号输出单元的第二级的输出，以产生复位信号，从而使输入信号的相位范围成为有效控制 可以获得宽的信号，由于快速锁相，动态逻辑的低功耗和快速信号传输，可以获得低功耗和低噪声特性。