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1.发明申请Alternative direct sequence spread spectrum symbol to chip mappings and methods for generating the same 失效替代的直接序列扩频符号到码片映射及其生成方法公开(公告)号：US20080310482A1
公开(公告)日：2008-12-18
申请号：US11818031
申请日：2007-06-13
IPC分类号： H04B1/38
CPC分类号： H04J13/10 , H04J13/004
摘要： Alternative direct sequence spread spectrum symbol to chip mappings and methods for generating the same for use in a direct sequence spread spectrum wireless protocol and embedded in a transceiver chip used by wireless subsystems are provided. The present invention discloses alternative symbol to chip mappings that are orthogonal or nearly orthogonal to the N/2 unused chip sequences defined by a standard transmission protocol. The present invention is advantageous because it provides for an increased number of users and better reliability for wireless subsystems operating in increasingly overcrowded frequency bands. Other advantages of the present invention include a reduction in the negative effects of clear channel assessment including delayed or cancelled signal transmission and interference for wireless subsystems that transmit time-sensitive data.
摘要翻译： 提供了替代的直接序列扩频符号到芯片映射及其生成方法，用于直接序列扩频无线协议并嵌入到无线子系统使用的收发器芯片中。 本发明公开了与由标准传输协议定义的N / 2未使用的码片序列正交或几乎正交的备选符号到码片映射。 本发明是有利的，因为它为越来越拥挤的频带中操作的无线子系统提供了更多的用户和更好的可靠性。 本发明的其它优点包括减少透明信道评估的负面影响，包括延迟或取消的信号传输和干扰传送时间敏感数据的无线子系统。
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2.发明授权Alternative direct sequence spread spectrum symbol to chip mappings and methods for generating the same 失效替代的直接序列扩频符号到码片映射及其生成方法公开(公告)号：US07903720B2
公开(公告)日：2011-03-08
申请号：US11818031
申请日：2007-06-13
IPC分类号： H04B1/00
CPC分类号： H04J13/10 , H04J13/004
摘要： Alternative direct sequence spread spectrum symbol to chip mappings and methods for generating the same for use in a direct sequence spread spectrum wireless protocol and embedded in a transceiver chip used by wireless subsystems are provided. The present invention discloses alternative symbol to chip mappings that are orthogonal or nearly orthogonal to the N/2 unused chip sequences defined by a standard transmission protocol. The present invention is advantageous because it provides for an increased number of users and better reliability for wireless subsystems operating in increasingly overcrowded frequency bands. Other advantages of the present invention include a reduction in the negative effects of clear channel assessment including delayed or cancelled signal transmission and interference for wireless subsystems that transmit time-sensitive data.
摘要翻译： 提供了替代的直接序列扩频符号到芯片映射及其生成方法，用于直接序列扩频无线协议并嵌入到无线子系统使用的收发器芯片中。 本发明公开了与由标准传输协议定义的N / 2未使用的码片序列正交或几乎正交的备选码元到码片映射。 本发明是有利的，因为它为越来越拥挤的频带中运行的无线子系统提供了更多的用户和更好的可靠性。 本发明的其它优点包括减少透明信道评估的负面影响，包括延迟或取消的信号传输和干扰传送时间敏感数据的无线子系统。
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公开(公告)号：US4302890A
公开(公告)日：1981-12-01
申请号：US168298
申请日：1980-07-14
申请人： John Covell , Laurence Brulin
发明人： John Covell , Laurence Brulin
CPC分类号： A43C15/06
摘要： An anti-slipping attachment for shoes is disclosed in two embodiments, one for both the sole and heel and the other for the sole alone. The sole portion of each embodiment includes a pair of overlapped plates pivotted together at their rear ends permitting adjustment of the width of the device at its front end. One plate includes an integral tab bent over the other plate to serve as a guide and the other plate includes an integral stop which cooperates with the tab to limit the maximum angular displacement of the plates. The plates, which have integral teeth and integral apertured ears for receiving a strap, are each formed by bending from identical sheet metal blanks.
摘要翻译： 在两个实施例中公开了用于鞋子的防滑附件，一个用于鞋底和鞋跟，另一个用于鞋底。 每个实施例的唯一部分包括在其后端枢转在一起的一对重叠板，从而允许在其前端调整装置的宽度。 一个板包括在另一个板上弯曲成一体的突片，用作引导件，另一个板包括一个整体的止动件，该止动件与拉片配合以限制板的最大角位移。 具有整体牙齿的板和用于接收带的整体有孔的耳朵各自通过从相同的金属板坯弯曲而形成。
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