公开(公告)号：US20120113728A1

公开(公告)日：2012-05-10

申请号：US13096669

申请日：2011-04-28

Applicant: Kyoung Hwan KWON ,  Tae Jin KANG ,  Sang Kwon LEE

Inventor： Kyoung Hwan KWON ,  Tae Jin KANG ,  Sang Kwon LEE

IPC: G11C7/10 ,  G11C8/18

CPC classification number: G11C7/1072 ,  G11C7/1006 ,  G11C7/1087 ,  G11C7/1093 ,  G11C7/1096 ,  G11C7/222

Abstract: A data input circuit includes a clock sampling unit, a final clock generation unit, and a write latch signal generation unit. The sampling unit is configured to generate a shifting signal including a pulse generated after a write latency is elapsed, and generate a sampling clock by sampling an internal clock during a burst period from substantially a time when the pulse of the shifting signal is generated. The final clock generation unit is configured to generate a level signal by latching the shifting signal in synchronization with the sampling clock and generate a final clock from the level signal in response to a burst signal. The write latch signal generation unit is configured to generate an enable signal by latching the final clock and generate a write latch signal for latching and outputting aligned data in response to the enable signal.

Abstract translation: 数据输入电路包括时钟采样单元，最终时钟产生单元和写入锁存信号产生单元。 采样单元被配置为产生包括在写入等待时间之后产生的脉冲的移位信号，并且在从产生移位信号的脉冲的时间开始的脉冲串周期期间，通过对内部时钟进行采样来产生采样时钟。 最终时钟生成单元被配置为通过与采样时钟同步地锁存移位信号来产生电平信号，并且响应于突发信号从电平信号产生最终时钟。 写锁存信号生成单元被配置为通过锁存最终时钟来产生使能信号，并且响应于使能信号产生用于锁存和输出对准数据的写锁存信号。

公开(公告)号：US20110171015A1

公开(公告)日：2011-07-14

申请号：US12967523

申请日：2010-12-14

Applicant: Tae Jin KANG

Inventor： Tae Jin KANG

IPC: F01D13/00 ,  B23P15/00

CPC classification number: F04D29/051 ,  F04D17/105 ,  F04D17/122 ,  F04D29/4206 ,  Y10T29/49243

Abstract: Provided is a centrifugal compressor. In the centrifugal compressor, a plurality of sub-compressors each of which includes an impeller are connected in parallel to increase a compression capacity, the plurality of sub-compressors are each assembled to a single common shaft that is rotated by a driving unit, and the impellers of the plurality of sub-compressors are disposed in opposing directions. The centrifugal compressor reduces a production cost, and cancels thrusts during driving so as to reduce a loss of a bearing, thereby increasing efficiency of the compressor.

Abstract translation: 提供了一种离心式压缩机。 在离心式压缩机中，并联连接多个分别包括叶轮的副压缩机以提高压缩容量，多个副压缩机各自组装成由驱动单元旋转的单个公共轴，并且 多个副压缩机的叶轮相对设置。 离心式压缩机降低了生产成本，并且消除了驱动过程中的推力，从而减少了轴承的损失，从而提高了压缩机的效率。