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    • 1. 发明申请
    • APPARATUS AND METHOD FOR CONTROLLING OPERATION STATE OF PHYSICAL LAYER
    • 用于控制物理层操作状态的装置和方法
    • US20110149843A1
    • 2011-06-23
    • US12648832
    • 2009-12-29
    • Tae Ho HwangDong Sun KimKwang-Ho Won
    • Tae Ho HwangDong Sun KimKwang-Ho Won
    • H04W40/00H04L12/413
    • H04L1/188
    • An apparatus for controlling IEEE 802.15.4 physical layer operation state is provided. The physical layer operation state controlling apparatus defines an operation state of a physical layer including a Hardwired Low-MAC (HL-MAC) device in which functions of IEEE 802.15.4 MAC layer are hardwired, and includes a state module for controlling the operation state of the physical layer. The state module includes a Finite State Machine (FSM) for, when receiving an event for the operation state of the physical layer, transiting to a state module corresponding to the event and controlling the operation state of the physical layer; and an interrupt handler for converting an interrupt received from the physical layer to the event corresponding to a register of the state module and sending the event to the FSM. Hence, by means of the state machine for the IEEE 802.15.4 PHY, the IEEE 802.15.4 physical layer operation state can be controlled to optimize the operations of the upper MAC.
    • 提供了一种用于控制IEEE 802.15.4物理层操作状态的装置。 物理层操作状态控制装置定义包括其中IEEE 802.15.4 MAC层的功能是硬连线的硬连线低MAC(HL-MAC)设备的物理层的操作状态,并且包括用于控制操作状态的状态模块 的物理层。 所述状态模块包括有限状态机(FSM),用于当接收到所述物理层的操作状态的事件时,转移到与所述事件相对应的状态模块并控制所述物理层的操作状态; 以及用于将从物理层接收的中断转换为与状态模块的寄存器相对应的事件并将事件发送到FSM的中断处理程序。 因此,通过IEEE 802.15.4 PHY的状态机,可以控制IEEE 802.15.4物理层操作状态,以优化上MAC的操作。
    • 2. 发明授权
    • Apparatus and method for controlling operation state of physical layer
    • 控制物理层运行状态的装置和方法
    • US08693395B2
    • 2014-04-08
    • US12648832
    • 2009-12-29
    • Tae Ho HwangDong Sun KimKwang-Ho Won
    • Tae Ho HwangDong Sun KimKwang-Ho Won
    • H04W4/00H04B3/36H04B1/38
    • H04L1/188
    • An apparatus for controlling IEEE 802.15.4 physical layer operation state is provided. The physical layer operation state controlling apparatus defines an operation state of a physical layer including a Hardwired Low-MAC (HL-MAC) device in which functions of IEEE 802.15.4 MAC layer are hardwired, and includes a state module for controlling the operation state of the physical layer. The state module includes a Finite State Machine (FSM) for, when receiving an event for the operation state of the physical layer, transiting to a state module corresponding to the event and controlling the operation state of the physical layer; and an interrupt handler for converting an interrupt received from the physical layer to the event corresponding to a register of the state module and sending the event to the FSM. Hence, by means of the state machine for the IEEE 802.15.4 PHY, the IEEE 802.15.4 physical layer operation state can be controlled to optimize the operations of the upper MAC.
    • 提供了一种用于控制IEEE 802.15.4物理层操作状态的装置。 物理层操作状态控制装置定义包括其中IEEE 802.15.4 MAC层的功能是硬连线的硬连线低MAC(HL-MAC)设备的物理层的操作状态,并且包括用于控制操作状态的状态模块 的物理层。 所述状态模块包括有限状态机(FSM),用于当接收到所述物理层的操作状态的事件时,转移到与所述事件相对应的状态模块并控制所述物理层的操作状态; 以及用于将从物理层接收的中断转换为与状态模块的寄存器相对应的事件并将事件发送到FSM的中断处理程序。 因此,通过IEEE 802.15.4 PHY的状态机,可以控制IEEE 802.15.4物理层操作状态,以优化上MAC的操作。
    • 3. 发明申请
    • Multimedia service system for portable devices using hardware transcoder
    • 使用硬件代码转换器的便携式设备的多媒体服务系统
    • US20050265395A1
    • 2005-12-01
    • US10976782
    • 2004-11-01
    • Jae KimKwang-Ho WonTae-Ho HwangSang Lee
    • Jae KimKwang-Ho WonTae-Ho HwangSang Lee
    • G06F3/14H04J1/00H04L29/06H04N7/16H04N7/26
    • H04L29/06027H04L65/605H04N7/163H04N19/40H04N21/4126H04N21/4334H04N21/4363H04N21/440263H04N21/440281H04N21/4621H04N21/4622
    • The present invention relates to a system for providing a multimedia service to a portable device. The multimedia service system of the present invention includes a multimedia source, a hardware transcoder, an interface unit, a storage unit and a portable device. The multimedia source provides multimedia contents including video and/or audio data. The hardware transcoder converts the multimedia contents into contents having a format suitable for a display device of the portable device. The interface unit transmits the contents converted by the transcoder. The storage unit stores therein the contents received through the interface unit. The portable device receives the contents from the storage unit and displays the contents. The transcoder changes at least one of video and/or audio formats, a bandwidth (data rate), a frame rate and a resolution of the contents provided from the multimedia source. Accordingly, the present invention can provide multimedia contents most suitable for a portable device having a relatively low display capability.
    • 本发明涉及一种向便携式设备提供多媒体服务的系统。 本发明的多媒体服务系统包括多媒体源,硬件代码转换器,接口单元,存储单元和便携式设备。 多媒体源提供包括视频和/或音频数据的多媒体内容。 硬件代码转换器将多媒体内容转换为具有适合便携式设备的显示设备的格式的内容。 接口单元发送由代码转换器转换的内容。 存储单元在其中存储通过接口单元接收的内容。 便携式设备从存储单元接收内容并显示内容。 代码转换器改变视频和/或音频格式,从多媒体源提供的内容的带宽(数据速率),帧速率和分辨率中的至少一种。 因此,本发明可以提供最适合于具有相对低的显示能力的便携式设备的多媒体内容。
    • 9. 发明授权
    • 2N-order sub-harmonic frequency modulator having high carrier suppression ratio and direct conversion transmitter using the same
    • 具有高载波抑制比的2N阶次谐波调制器和使用它的直接变换发射机
    • US07324798B2
    • 2008-01-29
    • US10899148
    • 2004-07-27
    • Hae-Moon SeoKwang-Ho WonYong Kuk ParkMyung-Hyun YoonJune-Jae Yoo
    • Hae-Moon SeoKwang-Ho WonYong Kuk ParkMyung-Hyun YoonJune-Jae Yoo
    • H04B1/26
    • H03C3/40H03D7/1441H03D7/1458H03D7/1475H03D7/1483H03D2200/0084
    • Disclosed herein is a 2N-order sub-harmonic frequency modulator and direct conversion transmitter using the same. The direct conversion transmitter includes a digital modulation unit, a D/A conversion unit, a DC correction and low pass filter unit, a local oscillator, a poly phase signal generation unit, a 2N-order sub-harmonic I/Q frequency modulation unit, a power amplification unit, and an antenna. The digital modulation unit digitally modulates a base-band signal and then outputs I and Q component signals. The D/A conversion unit converts the I and Q component signals into analog I and Q component signals. The DC correction and low pass filter unit adjusts DC interfaces of the analog I and Q component signals, passes low frequency components of the analog I and Q component signals and generates I and Q components of a base-band signal. The local oscillator generates a sine wave signal with a frequency of FTX/2N. The poly phase signal generation unit generates a poly phase signal with 2N+1 phases. The frequency modulation unit mixes the I and Q components with the poly phase signal with 2N+1 phases to generate an output signal with a frequency of FTX. The power amplification unit amplifies the output of the frequency modulation unit to a required level. The antenna radiates the output signal of the power amplification unit.
    • 这里公开了一种使用该二次谐波的二次谐波调制器和直接变换发射机。 直接变换发射机包括数字调制单元,D / A转换单元,DC校正和低通滤波器单元,本地振荡器,多相信号生成单元,2阶N - 和弦I / Q调频单元,功率放大单元和天线。 数字调制单元对基带信号进行数字调制,然后输出I和Q分量信号。 D / A转换单元将I和Q分量信号转换成模拟I和Q分量信号。 DC校正和低通滤波器单元调整模拟I和Q分量信号的DC接口,通过模拟I和Q分量信号的低频分量,并产生基带信号的I和Q分量。 本地振荡器产生频率为F N 2 / N 2的正弦波信号。 多相信号生成单元生成具有2个N + 1个相位的多相信号。 频率调制单元将I和Q分量与具有2个N + 1个相位的多相信号进行混合,以产生频率为F TX的输出信号。 功率放大单元将频率调制单元的输出放大到所要求的水平。 天线辐射功率放大单元的输出信号。
    • 10. 发明申请
    • FUSING APPARATUS FOR CORRECTING PROCESS VARIATION
    • 用于校正过程变化的熔化装置
    • US20110156747A1
    • 2011-06-30
    • US12648908
    • 2009-12-29
    • Yeon-Kug MoonJae-Ho KimIl-Yeup AhnSang-Shin LeeMin-Hwan SongKwang-Ho Won
    • Yeon-Kug MoonJae-Ho KimIl-Yeup AhnSang-Shin LeeMin-Hwan SongKwang-Ho Won
    • H03K19/00G01R31/02H03K19/094
    • H03K19/00384
    • An fusing apparatus for correcting process variation is provided. The fusing apparatus for correcting the process variation of the semiconductor device includes a fusing part including a fusing resistor fused by a current penetrating; a current driving transistor for fusing the fusing resistor by driving a fusing current according to a fusing enable signal applied; a current path part for building a current path by connecting to the fusing part, and controlling a first node voltage according to a fusing state of the fusing resistor; and a latch part for latching a second node signal inversely amplified from the first node voltage, and outputting the latch value when a power-on reset part operates in a normal mode. Using the fusing cell, the test time can be reduced and the current consumption can be greatly decreased in the fusing process.
    • 提供了一种用于校正工艺变化的定影装置。 用于校正半导体器件的工艺变化的定影装置包括:熔化部,其包括通过电流穿透而熔合的熔化电阻; 电流驱动晶体管,用于根据施加的熔断使能信号来驱动熔断电流来熔化定影电阻器; 用于通过连接到定影部分构建电流路径的电流路径部分,以及根据定影电阻器的定影状态来控制第一节点电压; 以及用于锁存从第一节点电压反向放大的第二节点信号的锁存部分,并且当上电复位部分在正常模式下操作时输出锁存值。 使用定影单元,可以降低测试时间,并可以在熔化过程中大大降低电流消耗。