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    • 23. 发明授权
    • Trunk routing device and method for CDMA system
    • 用于CDMA系统的中继路由设备和方法
    • US06754199B1
    • 2004-06-22
    • US09669929
    • 2000-09-26
    • Young Joon ChoiHeon Yong Shim
    • Young Joon ChoiHeon Yong Shim
    • H04B7216
    • H04L12/2854H04W28/08H04W28/14H04W40/00H04W76/10H04W92/12
    • The trunk routing device and method in a CDMA mobile communication system according to the present invention is contrived to assign and establish a plurality of trunks in the unit of packet to send packet data between a base station controller and a base transceiver station in order to uniformly utilize all trunk paths. Once receiving a new packet from a node connected to the base station controller, the invention extracts information about the packet designation from every packet and switches the packet data with the trunks connected to the designation in the unit of packet, thus sending the packet date to the base transceiver station. Also, the present invention sequentially checks the status of the respective FIFO's connected the trunks for buffering the packet received via the trunks, and sequentially reads out the packet from the respective FIFO's in the unit of packet while the respective FIFO's are empty, according to the result of the checking step, multiplying the packet, to send the multiplied packet to a node connected to the base station controller, thereby uniformly using all packet transfer paths between the base station controller and the base transceiver station.
    • 根据本发明的CDMA移动通信系统中的干线路由设备和方法被设计为以分组为单位分配和建立多个中继线,以在基站控制器和基站收发台之间发送分组数据,以便均匀地 利用所有中继线路径。 一旦从连接到基站控制器的节点接收到新的分组,本发明从每个分组中提取关于分组指定的信息,并且以分组为单位与连接到指定的中继线交换分组数据,从而将分组日期发送到 基站收发台。 此外,本发明依次检查相关的FIFO连接的中继线的状态,以缓冲经由中继线路接收到的分组,并且在相应的FIFO为空的情况下,以分组为单位从相应的FIFO单元读出分组,根据 检查步骤的结果,使分组相乘,将相乘的分组发送到连接到基站控制器的节点,由此均匀地使用基站控制器和基站收发器之间的所有分组传送路径。
    • 27. 发明授权
    • Xylitol producing microorganism introduced with arabinose metabolic pathway and production method of xylitol using the same
    • 木糖醇生产微生物引入阿拉伯糖代谢途径和木糖醇的生产方法
    • US08343736B2
    • 2013-01-01
    • US13391073
    • 2011-01-18
    • Jung Hoe KimByoung Hoon YoonWoo Young JeonWoo Yong Shim
    • Jung Hoe KimByoung Hoon YoonWoo Young JeonWoo Yong Shim
    • C12P21/06C12N15/19C12N1/00C12N15/00
    • C12P7/18
    • The present invention relates to an efficient production method of xylitol by using the xylitol producing microorganism introduced with arabinose metabolic pathway to inhibit the production of arabitol, the byproduct, and instead to use arabinose only for cell metabolism in xylose/arabinose mixed medium. More precisely, to express efficiently L-arabinose isomerase (araA), L-ribulokinase (araB) and L-ribulose-5-phosphate 4-epimerase (araD) in Candida tropicalis, codon optimization was performed. Then, each gene was inserted in the gene expression cassette containing the glyceraldehyde-3-phosphate dehydrogenase promoter and the selection marker URA3, which was introduced into Candida sp. microorganism. As a result, arabitol, the byproduct interrupting the purification and crystallization of xylitol could be inhibited, making the production method of xylitol of the present invention more efficient. The xylitol producing microorganism introduced with arabinose metabolic pathway of the present invention can be effectively used for the production of xylitol with high productivity by inhibiting the generation of arabitol.
    • 本发明涉及通过使用引入了阿拉伯糖代谢途径的木糖醇生产微生物来抑制阿糖醇(副产物)的产生的代谢产物,而是仅将木糖/阿拉伯糖混合培养基中的细胞代谢使用阿拉伯糖,从而有效地生产木糖醇。 更准确地说,为了在热带假丝酵母中有效地表达L-阿拉伯糖异构酶(araA),L-核糖激酶(araB)和L-核酮糖-5-磷酸4-差向异构酶(araD),进行密码子优化。 然后将每个基因插入含有甘油醛-3-磷酸脱氢酶启动子和选择标记URA3的基因表达盒中,将其引入假丝酵母属 微生物。 结果,可以抑制中和木糖醇的纯化和结晶的副产物,从而使本发明的木糖醇的生产方法更有效。 引入本发明的阿拉伯糖代谢途径的木糖醇生产微生物可以通过抑制阿拉伯糖醇的产生而以高生产率有效地用于生产木糖醇。