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1. 发明申请

US20070115907A1 DETECTING, REPORTING AND MITIGATING HIDDEN STATIONS IN A WIRELESS DATA NETWORK 有权
标题翻译：检测，报告和减轻无线数据网络中的隐蔽站
公开(公告)号：US20070115907A1
公开(公告)日：2007-05-24
申请号：US11623960
申请日：2007-01-17
申请人： Andrew Myles , Alex Lam , David Goodall
发明人： Andrew Myles , Alex Lam , David Goodall
IPC分类号： H04L12/56
CPC分类号： H04W16/14 , H04W52/34 , H04W74/00 , H04W84/12
摘要： A method for automatic hidden node detection that includes observing frame exchange sequences that conform to a MAC standard such as the IEEE 802.11 standard. The method includes detecting a hidden node upon receiving a response frame without previously receiving the frame causing the response. Similar conclusions may be drawn from longer frame sequences. When a hidden node has been detected with reasonable certainty, a hidden node report is sent to a hidden node manager. In one embodiment, the hidden node manager is centralized, and in another, the management function is performed in a distributed manner. Upon receiving a report, the hidden node manager automatically invokes hidden node avoidance measures by sending one or more action frames. In another embodiment, the hidden node manager turns on a hidden node mitigation method. In the case of the IEEE 802.11 standard, the hidden node manager turns on the IEEE 802.11 hidden node mitigation method based on RTS/CTS exchange.
摘要翻译：一种用于自动隐藏节点检测的方法，包括观察符合诸如IEEE 802.11标准的MAC标准的帧交换序列。该方法包括在接收到响应帧时检测隐藏节点，而不事先接收到引起响应的帧。从较长的帧序列可以得出类似的结论。当合理确定的情况下检测到隐藏节点时，会将隐藏节点报告发送给隐藏节点管理器。在一个实施例中，隐藏节点管理器是集中式的，而另一个实施例中，分布式地执行管理功能。收到报告后，隐藏节点管理器通过发送一个或多个动作帧自动调用隐藏的节点回避措施。在另一个实施例中，隐藏节点管理器启用隐藏节点缓解方法。在IEEE 802.11标准的情况下，隐藏节点管理器基于RTS / CTS交换机来打开IEEE 802.11隐藏节点缓解方法。

2. 发明申请

US20070201419A1 SYSTEM AND METHOD FOR SAVING POWER IN A WIRELESS NETWORK BY REDUCING POWER TO A WIRELESS STATION FOR A TIME INTERVAL IF A RECEIVED PACKET FAILS AN INTEGRITY CHECK 有权
标题翻译：如果接收到的分组失败，则将无线网络中的电力减少到无线站点，以便在无线网络中节省电力的系统和方法
公开(公告)号：US20070201419A1
公开(公告)日：2007-08-30
申请号：US11743603
申请日：2007-05-02
申请人： Donald Miller , Andrew Myles , Alex Lam , David Goodall
发明人： Donald Miller , Andrew Myles , Alex Lam , David Goodall
IPC分类号： H04Q7/24
CPC分类号： H04W52/0225 , H04W12/06 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： A method, an apparatus and a carrier medium storing instructions to implement the method. The method is in a first wireless station of a wireless network, and includes wirelessly receiving a signal corresponding to a packet wirelessly transmitted by a second wireless station. The packet includes a subpacket and a check sequence. The method further includes verifying the integrity of the subpacket, the verifying at least using the check sequence. The method further includes, in the case that the subpacket fails the verifying, reducing the power consumption of at least one component in the first wireless station for a time interval.
摘要翻译：一种存储用于实施该方法的指令的方法，装置和载体介质。该方法在无线网络的第一无线站中，并且包括无线地接收与由第二无线站无线发送的分组相对应的信号。分组包括子分组和检查序列。该方法还包括验证子分组的完整性，至少验证使用该校验序列。该方法还包括在子分组验证失败的情况下，在一段时间间隔内降低第一无线站中的至少一个分量的功率消耗。

3. 发明申请

US20070091934A1 METHOD AND APPARATUS FOR CLOCK SYNCHRONIZATION IN A WIRELESS NETWORK 有权
标题翻译：无线网络中时钟同步的方法与装置
公开(公告)号：US20070091934A1
公开(公告)日：2007-04-26
申请号：US11557588
申请日：2006-11-08
申请人： Andrew Myles , David Goodall , Alex Lam
发明人： Andrew Myles , David Goodall , Alex Lam
IPC分类号： H04J3/06
CPC分类号： H04W56/009 , H04J3/0664 , H04J3/0697 , H04L7/08
摘要： A method and apparatus for synchronizing a local clock value in a wireless receiver receiving a data unit containing synchronization information. The method includes receiving a first data unit containing synchronization information, extracting the synchronization information from the received first data unit, copying a local free-running clock at a known reference point in time relative to the time the first data unit was received to generate a local timestamp; and calculating an offset to the free-running clock using the extracted synchronization information and the local timestamp, the calculating in non real-time, such that the sum of the calculated offset and the value of the free-running clock provides a local clock value that is approximately synchronized in time. The apparatus implementing the method is part of a node of a wireless station, and provides a time synchronization function, typically at the MAC layer.
摘要翻译：一种在接收包含同步信息的数据单元的无线接收机中同步本地时钟值的方法和装置。该方法包括接收包含同步信息的第一数据单元，从接收到的第一数据单元提取同步信息，在相对于接收到第一数据单元的时间的已知参考点处复制本地自由运行时钟，以生成本地时间戳以及使用提取的同步信息和本地时间戳来计算到自由运行时钟的偏移量，非实时计算，使得所计算的偏移和自由运行时钟的值的和提供本地时钟值这在时间上大致同步。实现该方法的装置是无线站的节点的一部分，并且通常在MAC层提供时间同步功能。

4. 发明授权

US08329350B2 Fuel cell power generation system 失效
公开(公告)号：US08329350B2
公开(公告)日：2012-12-11
申请号：US13534301
申请日：2012-06-27
申请人： Alex Lam
发明人： Alex Lam
IPC分类号： H01M8/04 , H01M8/24
CPC分类号： H02J9/062 , H01M8/02 , H01M8/0297 , H01M8/04559 , H01M8/04589 , H01M8/04597 , H01M8/04626 , H01M8/04664 , H01M8/04746 , H01M8/04753 , H01M8/04925 , H01M8/04955 , H01M8/2465 , H01M2250/10 , H02J7/34 , H02J2001/004 , Y02B90/14
摘要： An electric power generator is particularly suitable for providing back-up power to sites with multiple power requirements. This generator comprises a rack having multiple module bays; at least one power conversion module is mounted in one of the bays and is electrically coupled to a fuel cell stack also mounted in the rack or located remote from the rack. The power conversion module converts the voltage level and/or current type of some of the electricity produced by the stack such that the generator can simultaneously output electricity at multiple voltage levels and/or current types. The rack can be a standardized nineteen relay rack, making the generator relatively compact and compatible with sites configured accept such racks.

5. 发明授权

US08216732B2 Fuel cell power generation system 失效
标题翻译：燃料电池发电系统
公开(公告)号：US08216732B2
公开(公告)日：2012-07-10
申请号：US11661892
申请日：2005-09-23
申请人： Alex Lam
发明人： Alex Lam
IPC分类号： H01M8/04 , H01M8/24
CPC分类号： H02J9/062 , H01M8/02 , H01M8/0297 , H01M8/04559 , H01M8/04589 , H01M8/04597 , H01M8/04626 , H01M8/04664 , H01M8/04746 , H01M8/04753 , H01M8/04925 , H01M8/04955 , H01M8/2465 , H01M2250/10 , H02J7/34 , H02J2001/004 , Y02B90/14
摘要： An electric power generator is particularly suitable for providing back-up power to sites with multiple power requirements. This generator comprises a rack having multiple module bays; at least one power conversion module is mounted in one of the bays and is electrically coupled to a fuel cell stack also mounted in the rack or located remote from the rack. The power conversion module converts the voltage level and/or current type of some of the electricity produced by the stack such that the generator can simultaneously output electricity at multiple voltage levels and/or current types. The rack can be a standardized nineteen relay rack, making the generator relatively compact and compatible with sites configured accept such racks.
摘要翻译：发电机特别适用于为具有多种功率要求的场所提供备用电源。该发生器包括具有多个模块隔间的机架; 至少一个电力转换模块安装在一个托架中，并且电耦合到也安装在机架中或位于机架远处的燃料电池堆。功率转换模块转换由堆叠产生的一些电力的电压电平和/或电流类型，使得发电机可以同时以多个电压电平和/或当前类型输出电力。机架可以是标准的十九个继电器机架，使发电机相对紧凑，与配置的站点兼容，接受这种机架。

6. 发明申请

US20070254193A1 Fuel Cell Power Generation System 失效
标题翻译：燃料电池发电系统
公开(公告)号：US20070254193A1
公开(公告)日：2007-11-01
申请号：US11661892
申请日：2005-09-23
申请人： Alex Lam
发明人： Alex Lam
IPC分类号： H01M8/00
CPC分类号： H02J9/062 , H01M8/02 , H01M8/0297 , H01M8/04559 , H01M8/04589 , H01M8/04597 , H01M8/04626 , H01M8/04664 , H01M8/04746 , H01M8/04753 , H01M8/04925 , H01M8/04955 , H01M8/2465 , H01M2250/10 , H02J7/34 , H02J2001/004 , Y02B90/14
摘要： An electric power generator is particularly suitable for providing back-up power to sites with multiple power requirements. This generator comprises a rack having multiple module bays; at least one power conversion module is mounted in one of the bays and is electrically coupled to a fuel cell stack also mounted in the rack or located remote from the rack. The power conversion module converts the voltage level and/or current type of some of the electricity produced by the stack such that the generator can simultaneously output electricity at multiple voltage levels and/or current types. The rack can be a standardized nineteen relay rack, making the generator relatively compact and compatible with sites configured accept such racks.
摘要翻译：发电机特别适用于为具有多种功率要求的场所提供备用电源。该发生器包括具有多个模块隔间的机架; 至少一个电力转换模块安装在一个托架中，并且电耦合到也安装在机架中或位于机架远处的燃料电池堆。功率转换模块转换由堆叠产生的一些电力的电压电平和/或电流类型，使得发电机可以同时以多个电压电平和/或当前类型输出电力。机架可以是标准的十九个继电器机架，使发电机相对紧凑，与配置的站点兼容，接受这种机架。

7. 发明申请

US20050226190A1 Method and apparatus for protecting parts of a packet in a wireless network 有权
标题翻译：用于保护无线网络中分组的部分的方法和装置
公开(公告)号：US20050226190A1
公开(公告)日：2005-10-13
申请号：US10819771
申请日：2004-04-06
申请人： Alex Lam
发明人： Alex Lam
IPC分类号： H04L1/00 , H04L12/56 , H04W28/04 , H04Q7/24
CPC分类号： H04L1/0061 , H04L63/123 , H04W12/10 , H04W84/12
摘要： Disclosed herein are a method, an apparatus, and a carrier medium including one or more computer readable code segments to instruct one or more processors of a processing system to implement a method. The method is in a first wireless station of a wireless network. The method comprises generating a check sequence to protect the integrity of a subpacket of a packet, wherein the packet is to be wirelessly transmitted. The method further comprises embedding the check sequence in an embedding field within the packet. The embedding field is located prior to the end of the subpacket. The method further comprises wirelessly transmitting the packet. The check sequence is generated such that a second wireless station wirelessly receiving a signal corresponding to the packet can sequentially verify the integrity of the subpacket as if the check sequence were appended at the end of the subpacket being protected.
摘要翻译：本文公开了一种包括一个或多个计算机可读代码段的方法，装置和载体介质，用于指示处理系统的一个或多个处理器实现方法。该方法在无线网络的第一无线站中。该方法包括生成检查序列以保护分组的子分组的完整性，其中分组将被无线传输。该方法还包括将检查序列嵌入在分组内的嵌入字段中。嵌入字段位于子分片结束之前。该方法还包括无线发送分组。生成检查序列，使得无线地接收与分组相对应的信号的第二无线站可以顺序地验证子分组的完整性，就好像检查序列被附加在子分组被保护的末端一样。

8. 发明申请

US20070014267A1 Off-channel beacons in a wireless network 有权
标题翻译：无线网络中的离线信标
公开(公告)号：US20070014267A1
公开(公告)日：2007-01-18
申请号：US11182206
申请日：2005-07-15
申请人： Alex Lam , Brian Hart , Mark Krischer , David Stephenson
发明人： Alex Lam , Brian Hart , Mark Krischer , David Stephenson
IPC分类号： H04Q7/24
CPC分类号： H04W48/10 , H04W84/12
摘要： A method, apparatus, and software containing computer readable code to implement the method implemented in a first wireless device. The method includes, for a particular network identifier active in a wireless network, transmitting frames configured to advertise the infrastructure network of the particular network identifier. The transmitting of off-channel beacons is in a provided channel different than the channel in which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames. The transmitting of off-channel beacons further is at a rate higher than the beacon rate frame at which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames.
摘要翻译：一种包含用于实现在第一无线设备中实现的方法的计算机可读代码的方法，装置和软件。该方法包括：对于在无线网络中活动的特定网络标识符，发送被配置为通告该特定网络标识符的基础设施网络的帧。离线信标的发送处于与特定网络标识符的基础设施无线接入点发送信标帧的信道不同的提供信道中。进一步发送离开信道信标的速率高于特定网络标识符的基础设施无线接入点发送信标帧的信标速率帧的速率。

9. 发明申请

US20120270128A1 FUEL CELL POWER GENERATION SYSTEM 失效
标题翻译：燃料电池发电系统
公开(公告)号：US20120270128A1
公开(公告)日：2012-10-25
申请号：US13534301
申请日：2012-06-27
申请人： Alex Lam
发明人： Alex Lam
IPC分类号： H01M8/04
CPC分类号： H02J9/062 , H01M8/02 , H01M8/0297 , H01M8/04559 , H01M8/04589 , H01M8/04597 , H01M8/04626 , H01M8/04664 , H01M8/04746 , H01M8/04753 , H01M8/04925 , H01M8/04955 , H01M8/2465 , H01M2250/10 , H02J7/34 , H02J2001/004 , Y02B90/14
摘要： An electric power generator is particularly suitable for providing back-up power to sites with multiple power requirements. This generator comprises a rack having multiple module bays; at least one power conversion module is mounted in one of the bays and is electrically coupled to a fuel cell stack also mounted in the rack or located remote from the rack. The power conversion module converts the voltage level and/or current type of some of the electricity produced by the stack such that the generator can simultaneously output electricity at multiple voltage levels and/or current types. The rack can be a standardized nineteen relay rack, making the generator relatively compact and compatible with sites configured accept such racks.
摘要翻译：发电机特别适用于为具有多种功率要求的场所提供备用电源。该发生器包括具有多个模块隔间的机架; 至少一个电力转换模块安装在一个托架中，并且电耦合到也安装在机架中或位于机架远处的燃料电池堆。功率转换模块转换由堆叠产生的一些电力的电压电平和/或电流类型，使得发电机可以同时以多个电压电平和/或当前类型输出电力。机架可以是标准的十九个继电器机架，使发电机相对紧凑，与配置的站点兼容，接受这种机架。

10. 发明申请

US20060285507A1 Using mini-beacons in a wireless network 有权
标题翻译：在无线网络中使用迷你信标
公开(公告)号：US20060285507A1
公开(公告)日：2006-12-21
申请号：US11156054
申请日：2005-06-17
申请人： Richard Kinder , Alex Lam
发明人： Richard Kinder , Alex Lam
IPC分类号： H04B7/00
CPC分类号： H04W48/12 , H04W88/08
摘要： A method, apparatus, and software containing computer readable code to implement the method implemented in a first wireless device, e.g., an access point. The method includes, for a particular network identifier, e.g., BSSID, of at least one network identifier supported by the first wireless device that including a transmitter and modulator, each network identifier identifying a wireless network, e.g., an IEEE 802.11 BSS for which the first wireless device acts as an access point, transmitting full parent beacon frames periodically at the beacon frame rate for the particular network identifier; and transmitting at least one mini-beacon frames in between consecutive full parent beacon frames for the particular network identifier. Each mini beacon frame includes a subset of the information in a full parent beacon frame, and further including timing information indicative of when the next full parent beacon frame will be transmitted for the particular network identifier.
摘要翻译：一种包含用于实现在第一无线设备（例如，接入点）中实现的方法的计算机可读代码的方法，装置和软件。该方法包括针对包括发射机和调制器的第一无线设备支持的至少一个网络标识符的特定网络标识符（例如，BSSID），每个网络标识符标识无线网络，例如IEEE 802.11 BSS，第一无线设备充当接入点，以特定网络标识符的信标帧速率周期性地发送全部父信标帧; 以及在所述特定网络标识符的连续全父信标帧之间传送至少一个迷你信标帧。每个迷你信标帧包括完整父信标帧中的信息的子集，并且还包括指示将为特定网络标识符发送下一个完整父信标帧的定时信息。

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