Dynamically-scalable system and method for multiple user access utilzing multi-bit and multi-code orthogonal multiplexing

    公开(公告)号:US07088673B2

    公开(公告)日:2006-08-08

    申请号:US10000751

    申请日:2001-11-02

    申请人: David M. Horne

    发明人: David M. Horne

    IPC分类号: H04J11/00

    摘要: A code controller partitions a set of orthogonal spreading codes into a plurality of subsets of orthogonal spreading codes and allocates and transmits the subsets of orthogonal spreading codes to users. A transmitter device partitions the received subset of orthogonal spreading codes into partitioned sets. The partitioned sets are further expanded to include complement codes of the orthogonal spreading codes and the codes are mapped into a code index to create a spreading code set. A window of contiguous multi-bit input data to be transmitted by the transmitter device is partitioned into equal-size subsets, which are then mapped to a data index, to create a data set. The data set is mapped to the spreading code set to create a multiplex of spreading codes, and the multiplex of spreading codes are then summed to form a code multiplex. The code multiplex can then be sent in one transmit opportunity.

    Zero-overhead method for sequence reversible and pattern independent orthogonal multiplexing

    公开(公告)号:US07012884B2

    公开(公告)日:2006-03-14

    申请号:US10000895

    申请日:2001-11-02

    申请人: David M. Horne

    发明人: David M. Horne

    IPC分类号: H04J11/00 H04B7/216

    CPC分类号: H04J13/18 H04J13/004

    摘要: The invention relates to zero-overhead, sequence reversible, and pattern independent orthogonal multiplexing to achieve high bit densities in direct sequence spread spectrum communication systems. A set of orthogonal spreading codes is selected. The orthogonal spreading codes are partitioned into partitioned sets. The partitioned sets are further expanded to include complement codes of the orthogonal spreading codes. The orthogonal spreading codes and the complement codes are mapped into a code index to create a spreading code set. A window of contiguous input data is partitioned into equal-size subsets, which are then mapped to a data index, to create a data set. The data set is mapped to the spreading code set to create a multiplex of spreading codes, and the multiplex of spreading codes are then summed to form a code multiplex. The code multiplex can then be sent in one transmit opportunity.

    Method, apparatus, and system for remote diagnosis using a wireless link
    26.
    发明授权
    Method, apparatus, and system for remote diagnosis using a wireless link 失效
    使用无线链路进行远程诊断的方法,装置和系统

    公开(公告)号:US06925300B2

    公开(公告)日:2005-08-02

    申请号:US09968406

    申请日:2001-09-28

    申请人: David M. Horne

    发明人: David M. Horne

    IPC分类号: H04W24/00 H04M1/24 H04Q7/20

    CPC分类号: H04W24/00

    摘要: According to one aspect of the invention, a method is provided in which a connection is established, via a first wireless network, between a first wireless device located at a first location and a diagnostic control unit located at a second location. The first wireless device is coupled to an equipment at the first location the operations of which to be remotely tested by the diagnostic control unit. One or more diagnostic requests are transmitted, via the first wireless network, from the diagnostic control unit to the equipment through the first wireless device to perform one or more diagnostic operations on the equipment. The requested diagnostic operations are performed on the equipment to generate diagnostic results.

    摘要翻译: 根据本发明的一个方面,提供了一种方法,其中经由第一无线网络在位于第一位置的第一无线设备与位于第二位置的诊断控制单元之间建立连接。 第一无线设备耦合到第一位置的设备,其操作由诊断控制单元进行远程测试。 一个或多个诊断请求经由第一无线网络从诊断控制单元通过第一无线设备发送到设备,以对设备执行一个或多个诊断操作。 在设备上执行所请求的诊断操作以生成诊断结果。

    Method and apparatus for transmission of upstream data in an optical network
    27.
    发明授权
    Method and apparatus for transmission of upstream data in an optical network 失效
    用于在光网络中传输上游数据的方法和装置

    公开(公告)号:US06925263B2

    公开(公告)日:2005-08-02

    申请号:US09966839

    申请日:2001-09-28

    申请人: David M. Horne

    发明人: David M. Horne

    摘要: In an optical network that communicates upstream data utilizing a time division multiple access (TDMA) technique, end nodes transmit upstream data on a first wavelength in accordance with a transmission sequence. The end nodes transmit a timing signal on a second wavelength following the upstream data. The timing signals are reflected by a wavelength selective reflective element to each of the end nodes. The end nodes track the timing signals to determine when to transmit upstream data in accordance with the transmission sequence. The optical network includes an outside plant node coupled to the system head end with a distribution fiber. The outside plant node is coupled to the end nodes with drop fibers. The outside plant node includes a splitter/combiner and the wavelength selective reflective element. The wavelength selective reflective element reflects the timing signals on the second wavelength and passes upstream and downstream data on other wavelengths.

    摘要翻译: 在使用时分多址(TDMA)技术传送上行数据的光网络中,端节点根据传输顺序发送第一波长的上行数据。 终端节点在上游数据之后发送第二波长的定时信号。 定时信号被波长选择反射元件反射到每个端节点。 终端节点跟踪定时信号,以确定何时根据传输顺序发送上行数据。 光网络包括利用分布光纤耦合到系统头端的外部设备节点。 外部植物节点通过落纤维耦合到端节点。 外部植物节点包括分离器/组合器和波长选择反射元件。 波长选择反射元件反射第二波长上的定时信号,并在其他波长上传递上游和下游数据。

    Wavelength selective reflective/transmissive optical coupler and method
    28.
    发明授权
    Wavelength selective reflective/transmissive optical coupler and method 失效
    波长选择反射/透射光耦合器及方法

    公开(公告)号:US06556745B1

    公开(公告)日:2003-04-29

    申请号:US10007566

    申请日:2001-11-08

    申请人: David M. Horne

    发明人: David M. Horne

    IPC分类号: G02B6293

    摘要: An optical coupler operates as a reflective splitter for predetermined wavelengths and operates as an optical transmissive combiner and an optical transmissive splitter for other wavelengths. Wavelength-selective reflective elements reflect the predetermined wavelength from an output of a transmissive coupling element and pass other wavelengths to another the transmissive coupling element. The optical coupler also includes wavelength-selective coupling elements to transfer the predetermined wavelength between outputs of transmissive coupling elements and inhibit transmission of other wavelengths therebetween. The wavelength-selective coupling elements can be long-period gratings with a resonance wavelength at the predetermined wavelength. The wavelength-selective reflective elements can be Bragg gratings with a grating spacing of one-half the predetermined wavelength.

    摘要翻译: 光耦合器作为用于预定波长的反射分离器工作,并且用作其它波长的光透射组合器和光透射分离器。 波长选择反射元件从透射耦合元件的输出反射预定波长并将其它波长传递到另一个透射耦合元件。 光耦合器还包括波长选择耦合元件,以在透射耦合元件的输出之间传输预定波长并且抑制其间的其它波长的透射。 波长选择耦合元件可以是具有预定波长的谐振波长的长周期光栅。 波长选择反射元件可以是光栅间隔为预定波长的一半的布拉格光栅。

    Vehicle wheel hub and bearing unit assembly and method for producing same
    29.
    发明授权
    Vehicle wheel hub and bearing unit assembly and method for producing same 失效
    车轮轮毂和轴承单元总成及其制造方法

    公开(公告)号:US06364426B1

    公开(公告)日:2002-04-02

    申请号:US09369101

    申请日:1999-08-05

    IPC分类号: B60S162

    摘要: This invention relates to an improved vehicle wheel hub and bearing unit assembly and method for producing the same wherein an outer brake rotor mounting surface of the wheel hub and bearing assembly is subjected to a microfinishing process. The method for producing the vehicle wheel hub and bearing assembly comprises the steps of: (a) providing a vehicle wheel hub including an inboard end, an outboard end, and a main body having a radially outwardly extending flange, the flange having an outer surface which defines an outer brake rotor mounting surface of the vehicle wheel hub; (b) providing a bearing unit to rotatably support the vehicle wheel hub relative thereto; (c) assembling the bearing unit onto the vehicle wheel hub to produce a vehicle wheel hub and bearing unit assembly which defines a longitudinal axis; (d) preloading the bearing unit; (e) providing a microfinishing assembly having a microfinishing wheel; (f) supporting the vehicle wheel hub and bearing assembly on the microfinishing fixture; and (g) operating the microfinishing fixture whereby the microfinishing wheel engages the outer brake rotor mounting surface of the vehicle wheel hub and bearing unit assembly to produce a finished vehicle wheel hub and bearing assembly, the outer brake rotor mounting surface of the finished vehicle wheel and bearing unit assembly being microfinished relative to the longitudinal axis of the vehicle wheel hub and bearing unit assembly.

    摘要翻译: 本发明涉及一种改进的车轮轮毂和轴承单元组件及其制造方法,其中轮毂和轴承组件的外制动转子安装表面经受微精加工工艺。 用于制造车轮轮毂和轴承组件的方法包括以下步骤:(a)提供包括内侧端部,外侧端部和具有径向向外延伸的凸缘的主体的车轮轮毂,所述凸缘具有外表面 其限定所述车辆轮毂的外部制动器转子安装表面; (b)提供一个轴承单元,用于相对于其可旋转地支撑车轮轮毂; (c)将轴承单元组装到车轮轮毂上以产生限定纵向轴线的车轮轮毂和轴承单元组件; (d)预载轴承单元; (e)提供具有微精加工轮的微加工组件; (f)将车轮轮毂和轴承组件支撑在微精加工夹具上; 和(g)操作微加工夹具,由此微精加工轮与车轮轮毂和轴承单元组件的外制动转子安装表面接合以产生成品车轮毂和轴承组件,成品车轮的外制动转子安装表面 并且轴承单元组件相对于车轮轮毂和轴承单元组件的纵向轴线进行微精加工。

    Method for using circular spreading codes to achieve high bit densities
in a direct-sequence spread spectrum communication system
    30.
    发明授权
    Method for using circular spreading codes to achieve high bit densities in a direct-sequence spread spectrum communication system 失效
    在直接序列扩频通信系统中使用循环扩展码实现高比特密度的方法

    公开(公告)号:US6026118A

    公开(公告)日:2000-02-15

    申请号:US2749

    申请日:1998-01-05

    申请人: David M. Horne

    发明人: David M. Horne

    IPC分类号: H04J13/00 H04J13/10 H04B1/707

    CPC分类号: H04J13/0022 H04J13/10

    摘要: A method for achieving high bit densities in a direct-sequence spread spectrum communication system by using circular spreading codes. The circular spreading code is a pseudo-noise spreading code that is shifted by n. This circular pseudo-noise spreading code is then used to spread an information signal by modulating the information signal with the circular pseudo-noise spreading code. The same circular pseudo-noise spreading code is also used to demodulate the signal. The value of n used is that which corresponds to the value of the signal to be spread.

    摘要翻译: 一种通过使用循环扩展码在直接序列扩频通信系统中实现高比特密度的方法。 循环扩展码是移位n的伪噪声扩展码。 然后,使用该循环伪噪声扩展码,通过用循环伪噪声扩展码对信息信号进行调制来扩展信息信号。 同样的循环伪噪声扩展码也用于解调信号。 所使用的n的值是对应于要扩展的信号的值。