-
公开(公告)号：US20170126454A1
公开(公告)日：2017-05-04
申请号：US15402116
申请日：2017-01-09
IPC分类号： H04L27/26
CPC分类号： H04L27/2614 , H04L27/263
摘要： The invention relates to a method for reducing the PAPR in FRFT-OFDM systems, which belongs to the field of broadband wireless digital communications technology. The method is based on fractional random phase sequence and fractional circular convolution theorem, which can effectively reduce the PAPR of the system. The method of the invention has the advantages of simple system implementation and low computational complexity. In this method, the PAPR of the system can be effectively reduced while maintaining the reliability of the system. When the number of candidate signals is the same, the PAPR performance of the present method was found to be almost the same as that of SLM and better than that of PTS. More importantly, the present method has lower computational complexity than that of SLM and PTS methods.
-
公开(公告)号：US09960942B2
公开(公告)日：2018-05-01
申请号：US15402116
申请日：2017-01-09
CPC分类号： H04L27/2614 , H04L27/263
摘要： The invention relates to a method for reducing the PAPR in FRFT-OFDM systems, which belongs to the field of broadband wireless digital communications technology. The method is based on fractional random phase sequence and fractional circular convolution theorem, which can effectively reduce the PAPR of the system. The method of the invention has the advantages of simple system implementation and low computational complexity. In this method, the PAPR of the system can be effectively reduced while maintaining the reliability of the system. When the number of candidate signals is the same, the PAPR performance of the present method was found to be almost the same as that of SLM and better than that of PTS. More importantly, the present method has lower computational complexity than that of SLM and PTS methods.
-
公开(公告)号：US20160043888A1
公开(公告)日：2016-02-11
申请号：US14886056
申请日：2015-10-18
IPC分类号： H04L27/26
CPC分类号： H04L27/2614 , H04L27/263
摘要： The invention relates to a method that low complexity suppression of PAPR in FRFT-OFDM system, which belongs to the field of broadband wireless digital communications technology and can be used to reduce the PAPR in FRFT-OFDM system. The method is based on fractional random phase sequence and fractional circular convolution theorem, which can effectively reduce the PAPR of system. The method of the invention has the advantages of simple system implementation and low computational complexity. In this method, the PAPR of the system can be effectively reduced while keeping the system reliability. When the number of candidate signals is the same, the PAPR performance of the proposed method was found to be almost the same as that of SLM and better than that of PTS. More importantly, the proposed method has lower computational complexity than that of SLM and PTS.
摘要翻译： 本发明涉及FRFT-OFDM系统中PAPR低复杂度抑制方法，属于宽带无线数字通信技术领域，可用于降低FRFT-OFDM系统中的PAPR。 该方法基于分数随机相序和分数循环卷积定理，可有效降低系统的PAPR。 本发明的方法具有系统实现简单，计算复杂度低的优点。 在这种方法中，可以有效降低系统的PAPR，同时保持系统的可靠性。 当候选信号数量相同时，发现所提方法的PAPR性能与SLM几乎相同，优于PTS。 更重要的是，所提出的方法具有比SLM和PTS更低的计算复杂度。
-
4.发明申请公开(公告)号：US20060046899A1
公开(公告)日：2006-03-02
申请号：US10930793
申请日：2004-09-01
IPC分类号： A63B5/11
CPC分类号： A63B71/023 , A63B5/11 , A63B2208/12 , F16B7/042
摘要： A quick connecting mechanism for trampoline legs and safety fence posts includes an elastic connecting element mounted between an upper and a lower section forming the trampoline legs and/or posts. The upper and the lower section are correspondingly provided with upper and lower radial holes. The elastic connecting element is integrally formed from a metal material to include two inclined arms normally elastically extended outward at predetermined inclinations, and one of the two arms is provided with at least one retaining head diametrically slightly smaller than the upper and lower radial holes. The elastic connecting element is mounted in the lower section with the two arms elastically compressed in a diameter-reduced upper end portion of the lower section and the retaining head engaged with and partially projected from the lower radial hole into the upper radial hole to quickly connect the upper and the lower section to each other.
摘要翻译： 用于蹦床腿和安全栅栏柱的快速连接机构包括安装在上部和下部之间的弹性连接元件，形成蹦床腿和/或支柱。 上部和下部相应地设置有上部和下部径向孔。 弹性连接元件由金属材料一体地形成，包括通常以预定倾斜向外弹性延伸的两个倾斜臂，并且两个臂中的一个设置有至少一个直径略小于上下径向孔的保持头。 弹性连接元件安装在下部，其中两个臂在下部的直径减小的上端部中弹性压缩并且保持头与下部径向孔接合并部分地突出到上部径向孔中以快速连接 上部和下部彼此。
-
公开(公告)号：US20050196564A1
公开(公告)日：2005-09-08
申请号：US10791742
申请日：2004-03-04
IPC分类号： B32B1/08
CPC分类号： A47C5/06 , A47C1/143 , B29K2027/06 , B29L2023/00 , B29L2031/443 , Y10T428/1334 , Y10T428/139
摘要： A tubular strip for leisure chair is made of a specific pliable polyvinyl chloride (PVC) material by way of injection molding, so that the tubular strip has a reduced wall thickness with a plurality of spaced reinforcing ribs integrally molded on an outer surface of the tubular strip to provide a common force-bearing structure.
摘要翻译： 用于休闲椅的管状条通过注射成型由特定柔韧的聚氯乙烯（PVC）材料制成，使得管状条具有减小的壁厚，多个间隔开的加强肋整体模制在管状的外表面上 条带提供一个共同的承载结构。
-
公开(公告)号：US20050137061A1
公开(公告)日：2005-06-23
申请号：US10742831
申请日：2003-12-23
CPC分类号： A63B5/11 , A63B21/023 , A63B2210/50
摘要： A foldable trampoline includes a frame consisting of multiple frame sections, a jumping bed, and a plurality of legs connected to each joint of two adjacent frame sections. At least two knuckle mechanisms are provided at two opposite joints of the frame sections. Each knuckle mechanism includes two clamp brackets that are fixedly connected to two adjacent frame sections at their opposed ends. Each clamp bracket has two spaced arms that forward extend beyond the end of the frame section by a predetermined length and then turn downward to form two lug portions. The lug portions of the two clamp brackets are overlapped and pivotally connected to each other via a shaft pin extended therethrough. The shaft pin also extends through the leg located at the joint, so that the two adjacent frame sections may be pivotally turn about the shaft pin without the need of dismounting the leg thereat.
摘要翻译： 可折叠蹦床包括由多个框架部分组成的框架，跳床和连接到两个相邻框架部分的每个接头的多个支腿。 在框架部分的两个相对的接头处设置至少两个转向节机构。 每个转向节机构包括两个夹持支架，它们在相对的两端固定地连接到两个相邻的框架部分。 每个夹具支架具有两个间隔开的臂，其向前延伸超过框架部分的端部预定长度，然后向下转动以形成两个凸耳部分。 两个夹紧支架的凸耳部分经由延伸穿过其的轴销彼此重叠并且可枢转地连接。 轴销还延伸穿过位于接头处的腿部，使得两个相邻的框架部分可以绕轴销枢转转动，而不需要在其上拆卸腿部。
-
公开(公告)号：US20060172861A1
公开(公告)日：2006-08-03
申请号：US11044029
申请日：2005-01-28
IPC分类号： A63B5/11
CPC分类号： A63B5/11 , A63B2208/12 , A63B2210/50
摘要： A small-size trampoline includes a frame assembly to support a jumping bed at a required height. The frame assembly includes front and rear frames, two side frames, and front and rear transverse bars connected to and between the two side frames. The front and rear frames and the side frames are so shaped that they could be vertically connected together. Each of the front and rear frames and the side frames includes a horizontal main section of a predetermined length, on which two vertical leg sections are formed. When the front and rear frames and the side frames are vertically connected to one another at the leg sections, they together provide an overall height equal to the height required by the jumping bed, and therefore allow the fully disassembled trampoline to have a largely reduced volume for economical packing.
摘要翻译： 小型蹦床包括框架组件，以支撑所需高度的跳床。 框架组件包括前框架和后框架，两个侧框架，以及连接到两个侧框架之间和之间的前后横向杆。 前后框架和侧框架的形状使其可以垂直连接在一起。 前框架和后框架和侧框架中的每一个包括预定长度的水平主体部分，其上形成有两个垂直脚部分。 当前后框架和侧框架在腿部部分处于彼此垂直连接时，它们一起提供等于跳床所需高度的总高度，因此允许完全拆卸的蹦床具有大大减小的体积 经济包装。
-
公开(公告)号：US08696057B2
公开(公告)日：2014-04-15
申请号：US12929177
申请日：2011-01-06
申请人： Teng Wang
发明人： Teng Wang
IPC分类号： A47C7/62
CPC分类号： B60R11/02 , B60N2002/905 , B60R2011/0017 , B60R2011/008
摘要： A cantilever bracket mounted on two headrest supporting rods of a seat and includes two cantilevers and a post. The cantilever has one end provided with a fixing seat having a through channel through which the corresponding rod can pass, and the other end provided with a pivot seat. The post having one end provided with a supporting portion for supporting or hanging an object, and the other end provided with a first pivot which passes through pivot holes of the two pivot seats and pivotally connects the two cantilevers as a single unit of which the distance between the two fixing seats is adjustable. The cantilever bracket is applicable to seats of various headrest supporting rods with different spacings therebetween and eliminate the need for brackets of different specifications in accordance with the various headrest supporting rod spacings.
摘要翻译： 安装在座椅的两个头枕支撑杆上的悬臂支架，包括两个悬臂和一个柱。 悬臂的一端设置有固定座，该固定座具有通孔，相应的杆可穿过该通道，另一端设有枢轴座。 一端具有用于支撑或悬挂物体的支撑部分，另一端设置有第一枢轴，该第一枢轴穿过两个枢转座的枢转孔，并将两个悬臂作为单个单元枢转地连接， 两个固定座之间可调。 悬臂支架适用于各种不同间距的头枕支撑杆的座椅，不需要根据各种头枕支撑杆间距的不同规格的支架。
-
-
公开(公告)号：US20120080914A1
公开(公告)日：2012-04-05
申请号：US12929177
申请日：2011-01-06
申请人： Teng Wang
发明人： Teng Wang
CPC分类号： B60R11/02 , B60N2002/905 , B60R2011/0017 , B60R2011/008
摘要： The present invention is to provide a cantilever bracket mounted on two headrest supporting rods of a seat, which includes two cantilevers and a post. The cantilever has one end provided with a fixing seat having a through channel through which the corresponding rod can pass, and the other end provided with a pivot seat. The post having one end provided with a supporting portion for supporting or hanging an object, and the other end provided with a first pivot which passes through pivot holes of the two pivot seats and thereby pivotally connects the two cantilevers as a single unit of which the distance between the two fixing seats is adjustable. As such, the cantilever bracket is applicable to seats of various headrest supporting rods with different spacings therebetween and can eliminate the need to manufacture brackets of different specifications in accordance with the various headrest supporting rod spacings.
摘要翻译： 本发明提供一种安装在座椅的两个头枕支撑杆上的悬臂支架，其包括两个悬臂和一个柱。 悬臂的一端设置有固定座，该固定座具有通孔，相应的杆可穿过该通道，另一端设有枢轴座。 一端具有用于支撑或悬挂物体的支撑部分，并且另一端设置有第一枢轴，该第一枢轴穿过两个枢转座的枢转孔，从而以两个悬臂的单个单元可枢转地连接两个悬臂， 两个固定座之间的距离是可调节的。 因此，悬臂支架适用于各个头枕支撑杆之间的不同间隔的座椅，并且可以根据各种头枕支撑杆的间距消除制造不同规格的支架的需要。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.021 秒)
