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1. 发明授权

US5918698A Safety support apparatus for ladders 失效
标题翻译：梯子安全支撑装置
公开(公告)号：US5918698A
公开(公告)日：1999-07-06
申请号：US863907
申请日：1997-05-27
申请人： Timothy J. Lunn
发明人： Timothy J. Lunn
IPC分类号： E06C7/42 , E06C1/14
CPC分类号： E06C7/423 , E06C7/42
摘要： A safety support apparatus for ladders which enhances the stability of the lower end of the ladder against slipping, sliding or being jostled away from a position on the ground or other such supporting surface includes an open frame structure having a pair of laterally spaced apart A-frames. Each A-frame has a rearwardly and upwardly angled front leg and a rearwardly and downwardly angled, shorter rear leg. The front and rear legs are fastened together near their respective upper ends by an upper transversely disposed bolt, and at locations intermediate their ends by a longitudinally disposed straight side beam member. The two A-frames are held in a parallel vertical orientation by the combination of a front transversely disposed strut fastened at opposite lateral ends thereof to the upper surface of A-frame side members near their junction with the front A-frame legs, and a rear transversely disposed strut fastened at opposite lateral ends thereof to the rear A-frame legs, below the side members. A ladder inserted downwards into the open interior space of the frame structure, with the opposite side rails of the ladder parallel to opposite inner sides of the A-frame, is pivotably mounted to the apparatus by the inner protruding shanks of the upper A-frame bolts, each received through a bearing hole drilled through a ladder side rail, which is secured to the bolt by a fastener nut screwed down on the threaded shank of the bolt. Rearward pivotal motion of the upper portion of the ladder is limited by abutting contact of the ladder rails with a transversely disposed anti-kickback bar attached at opposite lateral ends thereof to the A-frame side members, below and rearward of the pivot axis. The apparatus stably supports a ladder at inclination angles between about 60 degrees and 85 degrees, in contrast to the 75-degree angle recommended for safe usage of a conventional ladder.
摘要翻译：一种用于梯子的安全支撑装置，其增强了梯子的下端的稳定性，防止滑动，滑动或从地面或其他这种支撑表面上的位置推开，包括具有一对侧向间隔开的A- 框架。每个A框架具有向后和向上倾斜的前腿以及向后和向下成角度较短的后腿。前腿和后腿通过上横向布置的螺栓在其相应上端紧固在一起，并且在其端部之间的位置处由纵向设置的直边梁构件紧固在一起。两个A形框架通过将前横向设置的支柱的组合在其相对的侧端处固定在A框架侧构件的与前A型框架腿的连接处附近的上表面上而保持在平行的垂直取向上，并且后横向设置的支柱在其相对的侧端固定到后A框架腿，在侧构件下方。梯子向下插入框架结构的敞开的内部空间中，梯子的相对的侧轨平行于A框架的相对的内侧，通过上部A框架的内部突出的轴可枢转地安装到装置上螺栓，每个都通过穿过梯子侧轨的钻孔接收，所述轴承孔通过拧紧在螺栓的螺纹杆上的紧固螺母固定到螺栓。梯子上部的向后的枢转运动通过梯形导轨与横向布置的防反扣杆的相对接触而受到限制，所述横向布置的反反冲杆在其相对的侧端处连接到A框架侧构件，在枢转轴线的下方和后方。相对于推荐用于安全使用传统梯子的75度角，该装置以大约60度和85度之间的倾斜角稳定地支撑梯子。

2. 发明授权

US6078607A Synchronization codes for use in communication 有权
标题翻译：用于通信的同步码
公开(公告)号：US6078607A
公开(公告)日：2000-06-20
申请号：US131894
申请日：1998-08-10
申请人： Robert L. Monroe , Timothy J. Lunn
发明人： Robert L. Monroe , Timothy J. Lunn
IPC分类号： H04L7/04 , H04K1/00 , H04J3/06 , H04L25/38
CPC分类号： H04L7/041 , H04L7/043
摘要： In a first embodiment of the invention, two sets of seven PN-sequences of length 128 are provided having favorable correlation properties for use as a preamble or midamble synchronization code. At the receiver a processor may be used to detect the code. In another aspect of the invention, a communication system using a synchronization code selected from sets of provided codes is claimed where the synchronization code may help to minimize possible misidentification of noise or interference by assisting in the detection of the start of a designated burst. The synchronization codes and their means for detection may be employed in various communication systems.
摘要翻译：在本发明的第一实施例中，提供两组长度为128的七个PN序列，其具有用作前同步码或中间码同步码的良好的相关性质。在接收器处，可以使用处理器来检测代码。在本发明的另一方面，要求使用从提供的代码集合中选择的同步码的通信系统，其中同步码可以通过协助检测指定突发的开始来帮助最小化噪声或干扰的可能误识别。可以在各种通信系统中使用同步码及其检测装置。

3. 发明授权

US6075848A Call patterns in a communications network 失效
标题翻译：通信网络中的呼叫模式
公开(公告)号：US6075848A
公开(公告)日：2000-06-13
申请号：US43295
申请日：1998-03-18
申请人： Timothy J Lunn , Ian P Thomas
发明人： Timothy J Lunn , Ian P Thomas
IPC分类号： H04M3/50 , H04M3/36 , H04M3/51 , H04M15/00 , H04Q3/72
CPC分类号： H04M3/36 , H04M15/00 , H04M3/51 , H04M2242/22 , H04M3/42059 , H04Q3/72
摘要： In a communications network, call records are generated by a plurality of originators (CLI#1, CLI#2, CLI#3) making calls to a service provider (180). The call records are stored in a database (145) which forms part of the billing function (140) of the network. The call records for the service provider (180) are collated and sent to the service provider for processing. The service provider is provided with a system for analyzing the call records to establish the number of lost callers, rather than the number of lost calls. This is possible since the call records include the CLI information of the originators. This information, gathered over a predetermined period of time, allows the service provider (180) to estimate the number of answering stations (170) necessary to optimize call answering and minimize the number of lost callers.
摘要翻译： PCT No.PCT / GB96 / 02331 Sec。 371日期1998年3月18日 102（e）1998年3月18日PCT PCT 1996年9月18日PCT公布。公开号WO97 / 11547 日期1997年3月27日在通信网络中，呼叫记录由多个发起者（CLI＃1，CLI＃2，CLI＃3）生成，呼叫服务提供商（180）。呼叫记录存储在构成网络的计费功能（140）的一部分的数据库（145）中。服务提供商（180）的呼叫记录被整理并发送到服务提供商进行处理。服务提供商被提供有用于分析呼叫记录以建立丢失呼叫者的数量的系统，而不是丢失的呼叫的数量。这是可能的，因为呼叫记录包括发起者的CLI信息。在预定时间段内收集的该信息允许服务提供商（180）估计优化呼叫应答所需的应答站（170）的数量，并使丢失呼叫者的数量最小化。

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