专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07651803B2 Ionic conductor, process for production thereof, and electrochemical device 失效
公开(公告)号：US07651803B2
公开(公告)日：2010-01-26
申请号：US11561609
申请日：2006-11-20
申请人： Koichiro Hinokuma , Bjoern Pietzak , Constance Gertrud Rost , Masafumi Ata , Yongming Li , Kazuaki Fukushima
发明人： Koichiro Hinokuma , Bjoern Pietzak , Constance Gertrud Rost , Masafumi Ata , Yongming Li , Kazuaki Fukushima
IPC分类号： H01M4/58 , H01M8/10 , H01M10/40 , C08J5/20
CPC分类号： B82Y30/00 , H01B1/122 , H01M4/8605 , H01M6/18 , H01M8/1004 , H01M8/1023 , H01M8/1039 , H01M8/1048 , H01M10/0562 , H01M10/347 , H01M12/00 , H01M2300/0068 , H01M2300/0082 , Y02P70/56
摘要： Disclosed herein are an ionic conductor including a proton conductor, a process for production thereof, and an electrochemical device (such as fuel cell) with said ionic conductor, said ionic conductor being superior in ionic conductivity, water resistance, and film forming properties. The ionic conductor is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups. The polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters; therefore, it permits many ion dissociating functional group to be introduced thereinto. Moreover, if ion dissociating functional groups are introduced into also the connecting group, it is possible to prevent the concentration of ion dissociating functional groups from decreasing as the result of polymerization. The polymer can be easily synthesized by simple condensation, substitution, and hydrolysis. Therefore, the process is suitable for mass production in high yields.

22. 发明授权

US6094631A Method of signal compression 失效
标题翻译：信号压缩方法
公开(公告)号：US6094631A
公开(公告)日：2000-07-25
申请号：US112949
申请日：1998-07-09
申请人： Yongming Li , Xiaodong Wu , Hongyi Chen
发明人： Yongming Li , Xiaodong Wu , Hongyi Chen
IPC分类号： G10L19/02 , H04N7/26 , G10L21/04
CPC分类号： G10L19/0212 , H04N19/61 , H04N19/63 , G10L25/27 , H04N19/115 , H04N19/146
摘要： A method of signal compression. An input signal is divided into a plurality of segments. Each of the segments is decomposed by wavelet packet transform to a plurality of levels, so that each of the segments is in a form of a group of coefficients in each of a plurality of domains corresponding to each of the levels. Each of the domains is divided into a plurality of sub-domains to calculate a degree of characteristic concentration corresponding thereto. One of the domains having a highest degree of characteristic concentration is select to perform bit allocation and quantization, so that the group of coefficients in the selected domain is represented as an information. The information is formatted into a frame for transmission, and then the frame is output.
摘要翻译：一种信号压缩方法。输入信号被分成多个段。每个段通过小波包变换分解为多个级别，使得每个段在与每个级别对应的多个域中的每一个域中是一组系数的形式。每个域被分成多个子域以计算与其对应的特征浓度的程度。选择具有最高特征浓度度的区域之一来执行比特分配和量化，使得所选择的域中的系数组被表示为信息。将信息格式化为一帧以进行传输，然后输出该帧。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式