公开(公告)号：US07313421B2

公开(公告)日：2007-12-25

申请号：US10952967

申请日：2004-09-28

申请人： Thomas Dejanovic ,  Andrew Adams ,  Peter S. Single

发明人： Thomas Dejanovic ,  Andrew Adams ,  Peter S. Single

IPC分类号： H04B1/38

CPC分类号： H04B1/1607 ,  G01S19/24 ,  G01S19/34

摘要： A GPS receiver includes baseband resources for simultaneous determination of carrier frequency shift and code chip offset. Reduction in the power consumption of a receiver is achieved by managing the sampling rate of an analog-to-digital converter, the intermediate frequency of the RF front end, and the front end bandwidth so these are appropriate to the current function of the receiver. In a GPS receiver during signal tracking, the IF, front end bandwidth, and ADC sampling rate are set as high as possible; during signal acquisition, the IF and front end bandwidth are set to relatively low values, and the ADC sample rate is set to a high value; and during ephemeris download, the IF, front end bandwidth, and the ADC sample rate are set to relatively low values. When a low battery condition is detected, the IF, front end bandwidth, and the ADC sample rate are set to relatively low values regardless of whether the GPS receiver is in the signal acquisition mode, signal tracking mode, or ephemeris download mode.

摘要翻译： GPS接收机包括用于同时确定载波频移和码片偏移的基带资源。 通过管理模拟 - 数字转换器的采样率，RF前端的中频和前端带宽来实现接收机功耗的降低，从而适合接收机的当前功能。 在信号跟踪期间的GPS接收机中，IF，前端带宽和ADC采样率设置得尽可能高; 在信号采集期间，IF和前端带宽设置为相对较低的值，ADC采样率设置为高值; 并且在星历下载期间，IF，前端带宽和ADC采样率被设置为相对较低的值。 当检测到低电量条件时，无论GPS接收机是处于信号采集模式，信号跟踪模式还是星历下载模式，IF，前端带宽和ADC采样率均被设置为相对较低的值。

公开(公告)号：US20060068853A1

公开(公告)日：2006-03-30

申请号：US10952967

申请日：2004-09-28

申请人： Thomas Dejanovic ,  Andrew Adams ,  Peter Single

发明人： Thomas Dejanovic ,  Andrew Adams ,  Peter Single

IPC分类号： H04B1/16 ,  H04B1/38 ,  H04M1/00

CPC分类号： H04B1/1607 ,  G01S19/24 ,  G01S19/34

摘要： A GPS receiver includes baseband resources for simultaneous determination of carrier frequency shift and code chip offset. Reduction in the power consumption of a receiver is achieved by managing the sampling rate of an analog-to-digital converter, the intermediate frequency of the RF front end, and the front end bandwidth so these are appropriate to the current function of the receiver. In a GPS receiver during signal tracking, the IF, front end bandwidth, and ADC sampling rate are set as high as possible; during signal acquisition, the IF and front end bandwidth are set to relatively low values, and the ADC sample rate is set to a high value; and during ephemeris download, the IF, front end bandwidth, and the ADC sample rate are set to relatively low values. When a low battery condition is detected, the IF, front end bandwidth, and the ADC sample rate are set to relatively low values regardless of whether the GPS receiver is in the signal acquisition mode, signal tracking mode, or ephemeris download mode.

摘要翻译： GPS接收机包括用于同时确定载波频移和码片偏移的基带资源。 通过管理模拟 - 数字转换器的采样率，RF前端的中频和前端带宽来实现接收机功耗的降低，从而适合接收机的当前功能。 在信号跟踪期间的GPS接收机中，IF，前端带宽和ADC采样率设置得尽可能高; 在信号采集期间，IF和前端带宽设置为相对较低的值，ADC采样率设置为高值; 并且在星历下载期间，IF，前端带宽和ADC采样率被设置为相对较低的值。 当检测到低电量条件时，无论GPS接收机是处于信号采集模式，信号跟踪模式还是星历下载模式，IF，前端带宽和ADC采样率均被设置为相对较低的值。

公开(公告)号：US20060125694A1

公开(公告)日：2006-06-15

申请号：US11194116

申请日：2005-07-30

申请人： Thomas Dejanovic ,  John Gloekler ,  Geoffrey Smith ,  Philip Ryan ,  John O'Sullivan

发明人： Thomas Dejanovic ,  John Gloekler ,  Geoffrey Smith ,  Philip Ryan ,  John O'Sullivan

IPC分类号： G01S3/02

CPC分类号： C07D263/58 ,  C07D265/36 ,  C07D413/04 ,  C07D413/06 ,  C07D413/10 ,  C07D413/14 ,  C07D417/04 ,  C07D417/14 ,  G01S5/0263 ,  G01S19/48

摘要： A method of determining a geographical location of an asset tracking device, includes searching, by the asset tracking device, for available location determination schemes at the geographical location, selecting one of the available location determination schemes, and determining coordinates of the geographical location using the selected location determination scheme. Some embodiments also include making a decision based, at least in part, upon the geographical location coordinates determined by using the selected location determination scheme. Some embodiments include transmitting a location message, the location message including the coordinates of the geographical location and an indication as to the selected location determination scheme.

摘要翻译： 一种确定资产跟踪装置的地理位置的方法，包括由资产跟踪装置搜索地理位置处的可用位置确定方案，选择可用位置确定方案之一，以及使用该方法确定地理位置的坐标 选定位置确定方案。 一些实施例还包括至少部分地基于通过使用所选择的位置确定方案确定的地理位置坐标进行决定。 一些实施例包括发送位置消息，包括地理位置的坐标的位置消息和关于所选择的位置确定方案的指示。

公开(公告)号：US06832261B1

公开(公告)日：2004-12-14

申请号：US09776792

申请日：2001-02-04

申请人： Gregg Anthony Westbrook ,  Thomas Dejanovic

发明人： Gregg Anthony Westbrook ,  Thomas Dejanovic

IPC分类号： G06F1516

CPC分类号： H04L49/9094 ,  H04L12/5601 ,  H04L29/06 ,  H04L49/1515 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/90

摘要： Methods and apparatus are disclosed for distributed resequencing and distributed reassembly of large packets split into smaller packets with each packet typically marked with a sequence number, timestamp, or other ordering and reassembly indications, and distributed among different paths and arriving possibly out of their original sequence. Multiple resequencing components communicated information as to received packets and coordinate the sending of packets from themselves, typically to produce a stream of resequenced packets which is then distributed to multiple reassembly components, which communicate information as to received packets and coordinate the sending of packets from themselves so as to produce the reassembled larger packets. When all packets comprising a larger packet are received by one of the distributed resequencing components, the reassembly components transmit their packets typically over a common bus or link in a coordinated fashion as to produce the original larger packet.

摘要翻译： 公开了分布式重新排序和拆分成更小分组的分组重组的方法和装置，每个分组通常标记有序列号，时间戳或其他排序和重组指示，并且分布在不同路径之间并且可能从其原始序列到达 。 多个重新测序组件传送关于接收到的数据包的信息，并协调分组自身的发送，通常产生一个重分配数据包流，然后分配给多个重新组装组件，它们传送关于接收到的数据包的信息，并协调自己的数据包的发送 以便产生重新组装的较大分组。 当包括较大分组的所有分组由分布式重排组件之一接收时，重组组件通常以公共总线或链路以协调的方式发送它们的分组，以产生原始较大分组。

公开(公告)号：US06111877A

公开(公告)日：2000-08-29

申请号：US2210

申请日：1997-12-31

申请人： Bruce A. Wilford ,  Thomas Dejanovic

发明人： Bruce A. Wilford ,  Thomas Dejanovic

IPC分类号： H04L29/06 ,  H04L29/08 ,  H04L12/28 ,  H04L12/50

CPC分类号： H04L29/06 ,  H04L2029/06054 ,  H04L67/1002

摘要： The invention provides a system and system for sharing packet traffic load among a plurality of possible paths. Each packet is associated with a flow, and a hash value is determined for each flow, so as to distribute the sequence of packets into a set of hash buckets. The hash value has a relatively large number of bits, but is divided by the number of possible paths so as to achieve a relatively small modulus value; the modulus value is used to index into a relatively small table associating one selected path with each entry. The modulus value is determined by a relatively small amount of circuitry, simultaneously for a plurality of moduli, and one such modulus value is selected in response to the number of possible paths.

摘要翻译： 本发明提供了一种用于在多个可能路径之间共享分组业务负载的系统和系统。 每个分组与流相关联，并且为每个流确定哈希值，以便将分组序列分布到一组散列桶中。 哈希值具有相对较大的比特数，但是除以可能的路径的数量，以获得相对小的模数值; 模数值用于索引到将一个选定路径与每个条目相关联的较小表格中。 模数值由相对少量的电路确定，同时用于多个模量，并且响应于可能路径的数量选择一个这样的模数值。

公开(公告)号：US07315281B2

公开(公告)日：2008-01-01

申请号：US11194116

申请日：2005-07-30

申请人： Thomas Dejanovic ,  John S. Gloekler ,  Geoffrey J. Smith ,  Philip J. Ryan ,  John O'Sullivan

发明人： Thomas Dejanovic ,  John S. Gloekler ,  Geoffrey J. Smith ,  Philip J. Ryan ,  John O'Sullivan

IPC分类号： G01S3/02

CPC分类号： C07D263/58 ,  C07D265/36 ,  C07D413/04 ,  C07D413/06 ,  C07D413/10 ,  C07D413/14 ,  C07D417/04 ,  C07D417/14 ,  G01S5/0263 ,  G01S19/48

摘要： A method of determining a geographical location of an asset tracking device, includes searching, by the asset tracking device, for available location determination schemes at the geographical location, selecting one of the available location determination schemes, and determining coordinates of the geographical location using the selected location determination scheme. Some embodiments also include making a decision based, at least in part, upon the geographical location coordinates determined by using the selected location determination scheme. Some embodiments include transmitting a location message, the location message including the coordinates of the geographical location and an indication as to the selected location determination scheme.

摘要翻译： 一种确定资产跟踪装置的地理位置的方法，包括由资产跟踪装置搜索地理位置处的可用位置确定方案，选择可用位置确定方案之一，以及使用该方法确定地理位置的坐标 选定位置确定方案。 一些实施例还包括至少部分地基于通过使用所选择的位置确定方案确定的地理位置坐标进行决定。 一些实施例包括发送位置消息，包括地理位置的坐标的位置消息和关于所选择的位置确定方案的指示。

公开(公告)号：US07046627B1

公开(公告)日：2006-05-16

申请号：US09949125

申请日：2001-09-07

申请人： Thomas Dejanovic ,  Anurag Singh Maunder ,  John J. Williams, Jr.

发明人： Thomas Dejanovic ,  Anurag Singh Maunder ,  John J. Williams, Jr.

IPC分类号： G03C15/00 ,  H04J1/16 ,  H04J3/14

CPC分类号： H04L49/506 ,  H04L49/101 ,  H04L49/501

摘要： Traffic information is accumulated and flow control information distributed in a packet switching system. Traffic information is collected in multiple elements, which forward in a coordinated fashion to collecting elements indications of congestion and other types of information. The collecting elements manipulate the received indications and generate flow control messages which are sent to individual sending components of the packet switching system. In one implementation, a switching element maintains for each destination a count of packets within itself which are addressed to the particular destination. An indication of a portion of this collected information is included in a packet header forwarded from each of the elements each packet time. Each of the elements are assigned a different offset, such that they send an indication of a different portion of their collected information, so a view of the traffic conditions and/or buffer occupancies within a packet switching system is efficiently produced.

摘要翻译： 流量信息被累积，流量控制信息分发在分组交换系统中。 交通信息被收集在多个元素中，这些元素以协调的方式向收集元素指示拥塞和其他类型的信息。 收集元件操纵接收到的指示并产生被发送到分组交换系统的各个发送组件的流控制消息。 在一个实现中，交换元件为每个目的地维护寻址到特定目的地的自身中的分组的计数。 该收集的信息的一部分的指示被包括在从每个分组时间的每个元素转发的分组报头中。 每个元件被分配不同的偏移，使得它们发送其收集的信息的不同部分的指示，因此有效地产生分组交换系统内的交通状况和/或缓冲器占用的视图。

公开(公告)号：US07027397B1

公开(公告)日：2006-04-11

申请号：US09784787

申请日：2001-02-15

申请人： Jonathan S. Turner ,  Zubin D. Dittia ,  Thomas Dejanovic

发明人： Jonathan S. Turner ,  Zubin D. Dittia ,  Thomas Dejanovic

IPC分类号： H04L12/26

CPC分类号： H04L49/506 ,  H04L49/101 ,  H04L49/501

摘要： Methods and apparatus are disclosed for accumulating traffic information and distributing flow control information in a packet switching system. Traffic information is collected in multiple elements and indications of congestion and/or other types of information useful in determining traffic conditions are forwarded to collecting elements. The collecting elements manipulate the received indications and generate flow control messages which are sent to individual sending components. In one implementation, a switching element maintains for each destination a count of packets within itself which are addressed to the particular destination. Indications of this collected information are sent to collecting switching elements. These collecting elements accumulate the information received from multiple sources. The accumulated information is evaluated, and when a congestion condition is located or anticipated, then flow control messages are distributed to all, or a subset of, the packet sources.

摘要翻译： 公开了用于在分组交换系统中累积交通信息和分配流量控制信息的方法和装置。 交通信息被收集在多个元素中，并且用于确定交通状况的拥堵和/或其他类型的信息的指示被转发到收集元件。 收集元件操纵接收到的指示并产生发送给各个发送组件的流控制消息。 在一个实现中，交换元件为每个目的地维护寻址到特定目的地的自身中的分组的计数。 收集的信息的指示被发送到收集交换元件。 这些收集元素累积从多个来源接收的信息。 对累积信息进行评估，并且当拥塞状况被定位或预期时，流量控制消息被分发给分组源的全部或子集。

公开(公告)号：US07009976B1

公开(公告)日：2006-03-07

申请号：US09894201

申请日：2001-06-27

申请人： Jonathan E. Michelson ,  John J. Williams, Jr. ,  Thomas Dejanovic ,  John Andrew Fingerhut

发明人： Jonathan E. Michelson ,  John J. Williams, Jr. ,  Thomas Dejanovic ,  John Andrew Fingerhut

IPC分类号： H04L12/56

CPC分类号： H04L47/24 ,  H04L47/10 ,  H04L47/26 ,  H04L47/33 ,  H04L47/34 ,  H04L49/1523 ,  H04L49/90 ,  H04L49/9094

摘要： Methods and apparatus are disclosed for using barrier phases to synchronize processes and components in a packet switching system, including, for example, but not limited to the use of barrier phases in the coordinated timing of the sending of information (e.g., flow control information) within a packet switching system, and the use of barrier phases in a packet sequence number windowing protocol. In one implementation, elements are assigned to one of multiple ordered sets of a barrier groups, wherein each element of a barrier group must be set to a common barrier state before any element of a next a barrier group can switch to a next barrier state, and once all elements of a particular barrier group switch to a new barrier state, all the elements of the next barrier group begin to switch to the next barrier state.

摘要翻译： 公开了使用障碍相位来同步分组交换系统中的过程和组件的方法和装置，包括例如但不限于在信息发送的协调定时（例如，流量控制信息）中使用屏障阶段， 在分组交换系统内，以及在分组序列号窗口协议中使用屏障相位。 在一个实现中，将元素分配给屏障组的多个有序集合中的一个，其中屏障组的每个元素必须在下一个屏障组的任何元素可以切换到下一个屏障状态之前被设置为公共屏障状态， 并且一旦特定屏障组的所有元件都切换到新的屏障状态，则下一个屏障组的所有元件开始切换到下一个屏障状态。

公开(公告)号：US07613200B1

公开(公告)日：2009-11-03

申请号：US10051728

申请日：2002-01-15

申请人： John J. Williams, Jr. ,  Thomas Dejanovic

发明人： John J. Williams, Jr. ,  Thomas Dejanovic

IPC分类号： H04L12/54

CPC分类号： H04L47/10 ,  H04L47/11 ,  H04L47/12 ,  H04L47/2441 ,  H04L47/32 ,  H04L49/254 ,  H04L49/90

摘要： Methods and apparatus are disclosed using a random indication to map items to paths and to recirculate or delay the sending of a particular item when a destination over its mapped path is unreachable, including, but not limited to the context of sending of packets across multiple paths in a packet switching system. In one implementation, a set of items is buffered, with the set of items including a first and second sets of items. The items in the first set of items are forwarded over a set of paths in a first configuration. The set of paths is reconfigured into a second configuration, and the items in the second set of items are forwarded over the set of paths in the second configuration. In one implementation, a recirculation buffer is used to hold items not immediately sent. In one implementation, the paths are reconfigured in a random fashion.

摘要翻译： 公开了使用随机指示将物品映射到路径的方法和装置，并且当通过其映射路径的目的地不可达时，再循环或延迟特定物品的发送，包括但不限于跨多个路径发送包的上下文 在分组交换系统中。 在一个实现中，一组项目被缓冲，其中该组项目包括第一和第二组项目。 第一组中的项目通过一组路径在第一配置中转发。 路径集合被重新配置为第二配置，并且第二组中的项目在第二配置中通过路径集合转发。 在一个实施方案中，再循环缓冲器用于保持未立即发送的物品。 在一个实现中，以随机方式重新配置路径。