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    • 101. 发明专利
    • Image data processor
    • 图像数据处理器
    • JP2008233304A
    • 2008-10-02
    • JP2007070095
    • 2007-03-19
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA YOSHINORI
    • G09G5/00G06T1/20G09G5/12G09G5/18
    • H03L7/07G09G5/008G09G5/12
    • PROBLEM TO BE SOLVED: To display an image normally in an image display part by synchronizing output clocks outputted from respective processors for image processing, with one another in clock units. SOLUTION: An image data processor of the present invention includes: a reference clock output circuit 21 which outputs a reference clock; a plurality of processors 1 to 4 for image processing; and a plurality of external PLL circuits 11 to 14 which are provided by the processors 1 to 4 for image processing and synchronize output clocks output from the corresponding processors 1 to 4 for image processing with the reference clock. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过将从各个处理器输出的用于图像处理的输出时钟同步在时钟单元中,通过在图像显示部分中正常显示图像。 解决方案:本发明的图像数据处理器包括:参考时钟输出电路21,其输出参考时钟; 用于图像处理的多个处理器1至4; 以及由处理器1至4提供用于图像处理的多个外部PLL电路11至14,并且使从相应处理器1至4输出的输出时钟与参考时钟进行图像处理同步。 版权所有(C)2009,JPO&INPIT
    • 105. 发明专利
    • Signal interleaving for serial clock and data recovery
    • 用于串行时钟和数据恢复的信号交互
    • JP2008099303A
    • 2008-04-24
    • JP2007275730
    • 2007-09-25
    • Silicon Image Incシリコン イメージ,インコーポレイテッド
    • LEE DONGYUNKIM SUNGJOON
    • H04L7/02H03L7/081H04L25/40
    • H04L7/0337H03L7/07H03L7/0812
    • PROBLEM TO BE SOLVED: To provide a clock and data recovery (CRD) system and method that recovers timing information and data from a serial data stream. SOLUTION: A CDR system (100) has a sampling circuit (105) generating a clock/data signal that is in a recovery state, and an interleaving feedback network (110). This network has a logic circuit (115) generating a control signal based on a recovery signal, a first multiplexer (120) selecting from four phases of a global clock signal based on the control signal, a first delay locked loop (130) including a first set of delay cells coupled to a second multiplexer that generates a delay signal based on the selected global clock signal, and a second delay locked loop (135) including a second set of delay cells that generates a set of phase-shifted feedback signals. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供从串行数据流恢复定时信息和数据的时钟和数据恢复(CRD)系统和方法。 解决方案:CDR系统(100)具有产生处于恢复状态的时钟/数据信号的采样电路(105)和交织反馈网络(110)。 该网络具有基于恢复信号产生控制信号的逻辑电路(115),第一多路复用器(120)基于控制信号从全局时钟信号的四相中选择第一延迟锁定环(130),包括 耦合到第二多路复用器的第一组延迟单元,其基于所选择的全局时钟信号产生延迟信号,以及包括产生一组相移反馈信号的第二组延迟单元的第二延迟锁定环路(135)。 版权所有(C)2008,JPO&INPIT
    • 106. 发明专利
    • Semiconductor memory device
    • 半导体存储器件
    • JP2008059741A
    • 2008-03-13
    • JP2007220652
    • 2007-08-28
    • Hynix Semiconductor Inc株式会社ハイニックスセミコンダクターHynix Semiconductor Inc.
    • LEE HYUN-WOOYUN WON-JOO
    • G11C11/4076G06F1/06G11C11/407H03K5/04H03K5/13H03K5/26
    • G11C7/1072G11C7/222H03L7/07H03L7/0814H03L7/0818
    • PROBLEM TO BE SOLVED: To provide a semiconductor memory device furnished with a delay locked circuit easily correcting a duty ratio when outputting a delay locked clock of a semiconductor memory device.
      SOLUTION: The semiconductor memory device includes a delay locked circuit, a duty cycle correction circuit, and a clock synchronization circuit. The delay locked circuit outputs a delay locked clock by delaying a system clock by a predetermined time. The duty cycle correction circuit outputs a first clock by correcting a duty cycle of the delay locked clock, wherein the proportion of high to low level periods of the delay locked clock is controlled according to a time difference between a second edge of the first clock and that of a second clock derived from the first clock. The clock synchronization circuit synchronizes a first edge of the first clock with that of the second clock.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种具有延迟锁定电路的半导体存储器件,其在输出半导体存储器件的延迟锁定时钟时容易校正占空比。 解决方案:半导体存储器件包括延迟锁定电路,占空比校正电路和时钟同步电路。 延迟锁定电路通过将系统时钟延迟预定时间来输出延迟锁定时钟。 占空比校正电路通过校正延迟锁定时钟的占空比来输出第一时钟,其中延迟锁定时钟的高电平到低电平周期的比例根据第一时钟的第二边沿和 来自第一时钟的第二时钟的信号。 时钟同步电路将第一时钟的第一边沿与第二时钟的第一边沿同步。 版权所有(C)2008,JPO&INPIT
    • 109. 发明专利
    • Clock-supplying device
    • 时钟供应器件
    • JP2007266923A
    • 2007-10-11
    • JP2006088341
    • 2006-03-28
    • Fujitsu Ltd富士通株式会社
    • NAKAMUTA HIROSHIFURUYAMA YOSHITO
    • H04L7/04H03L7/00H04L7/033
    • H03L7/07H03L7/107
    • PROBLEM TO BE SOLVED: To reduce phase fluctuations of clock-supplying signal, in a clock-supplying device having a plurality of clock-supplying units in which one is an operating system unit and another is a standby system unit for a redundant structure, and the fluctuations occur when switching the operating system unit to the other. SOLUTION: The device respectively provides clock-supplying units 10 and 20 with synchronizing sections 21, 37, and 39 between units to synchronize an output clock signal of a DPLL 22 in a unit 20 to an output clock signal of a DPLL 12 in a unit 10 with a predetermined phase difference on the basis of the clock signal input from the DPLL 12 in the operating system unit 10, when the unit 20 is the standby system unit. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:在具有多个时钟供给单元的时钟供给装置中,为了减少时钟提供信号的相位波动,其中一个是操作系统单元,另一个是用于冗余的备用系统单元 结构,并且当将操作系统单元切换到另一个时发生波动。 解决方案:设备分别在单元20之间提供具有同步部分21,37和39的时钟供给单元10和20,以使单元20中的DPLL 22的输出时钟信号与DPLL 12的输出时钟信号同步 基于从操作系统单元10中的DPLL12输入的时钟信号,在单元20中具有预定相位差的单元10,当单元20是备用系统单元时。 版权所有(C)2008,JPO&INPIT
    • 110. 发明专利
    • Semiconductor integrated circuit for communication
    • 半导体集成电路通信
    • JP2007259122A
    • 2007-10-04
    • JP2006081453
    • 2006-03-23
    • Renesas Technology Corp株式会社ルネサステクノロジ
    • UOZUMI TOSHIYASHINPO JIRO
    • H03L7/183H03L7/08H03L7/185H03L7/197H03L7/23H04B1/04H04B1/30H04B1/3822H04B1/40
    • H03L7/1976H03C3/0925H03C3/0933H03C3/0941H03L7/07
    • PROBLEM TO BE SOLVED: To reduce the influence due to the leakage of an oscillation output signal of a reference frequency oscillator DCXO, generated when the level of the oscillation output signal of DCXO is converted by a level converter Lev_Conv to the vicinity of an oscillation output signal of a voltage control oscillator TXVCO for RF transmission by harmonic components. SOLUTION: The level converter Lev_Conv converts the level of the oscillation output signal of DCXO and supplies a level conversion signal to a phase comparator PDC of a PLL fractional synthesizer Frct_Synth, which controls oscillation frequencies of the voltage control oscillator TXVCO for RF transmission. The Lev_Conv includes a self-bias type voltage amplifier Self_Bias_Volt_Amp, which amplifies the reference frequency signal of the reference frequency oscillator DCXO. The self-bias type voltage amplifier includes a coupling capacity C1, an amplifier transistor Qn5, a load Qp5 and a bias element R1 and suppresses the level fluctuations of the harmonic components, even if external supply voltage Vdd_ext fluctuates. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了减少由DCXO的振荡输出信号的电平被电平转换器Lev_Conv转换到附近的基准频率振荡器DCXO的振荡输出信号的泄漏的影响 用于通过谐波分量进行RF传输的压控振荡器TXVCO的振荡输出信号。 解决方案:电平转换器Lev_Conv转换DCXO的振荡输出信号的电平,并将电平转换信号提供给PLL分数合成器Frct_Synth的相位比较器PDC,该控制器控制用于RF传输的压控振荡器TXVCO的振荡频率 。 Lev_Conv包括自偏置型电压放大器Self_Bias_Volt_Amp,其放大参考频率振荡器DCXO的参考频率信号。 即使外部电源电压Vdd_ext发生波动,自偏置型电压放大器也包括耦合电容C1,放大晶体管Qn5,负载Qp5和偏置元件R1,并且抑制谐波分量的电平波动。 版权所有(C)2008,JPO&INPIT