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1. 发明申请

US20060211377A1 Detection and mitigation of interference and jammers in an OFDM system 有权
标题翻译：检测和减轻OFDM系统中的干扰和干扰
公开(公告)号：US20060211377A1
公开(公告)日：2006-09-21
申请号：US11226654
申请日：2005-09-14
申请人： Matthew Shoemake , Sridhar Rajagopal , John Terry
发明人： Matthew Shoemake , Sridhar Rajagopal , John Terry
IPC分类号： H04B17/00
CPC分类号： H04B17/345
摘要： The present invention provides a method and apparatus for detecting interference in a wireless communications system. The invention compares the receiver FFT output of a received signal against known sequences such as the packet synchronization sequence, frame synchronization sequence, and channel estimation sequence. By comparing the reference signal to the known sequences, the invention estimates the instantaneous signal to noise ratio (SNR) for each tone of a wireless transmission. To improve the SNR estimate, the invention computes a weighted average across multiple OFDM symbols. The invention looks for significant increases (spikes) in the SNR as a way of distinguishing interfering signals from noise. The invention can store separate SNR estimates for each transmitter in a wireless network. One embodiment of the invention uses Viterbi branch metrics in conjunction with the estimated SNR to determine the presence of an interfering signal. If interference is detected the invention feeds the inverse of the SNR estimate into the Viterbi decoder or declares and erasure for that symbol.
摘要翻译：本发明提供一种用于检测无线通信系统中的干扰的方法和装置。本发明将接收信号的接收机FFT输出与诸如分组同步序列，帧同步序列和信道估计序列的已知序列进行比较。通过将参考信号与已知序列进行比较，本发明估计无线传输的每个音调的瞬时信噪比（SNR）。为了提高SNR估计，本发明计算跨多个OFDM符号的加权平均。本发明寻找SNR中的显着增加（尖峰）作为区分干扰信号和噪声的一种方式。本发明可以在无线网络中为每个发射机存储单独的SNR估计。本发明的一个实施例使用维特比分支度量结合估计的SNR来确定干扰信号的存在。如果检测到干扰，本发明将SNR估计的逆向馈送到维特比解码器中，或者声明并擦除该符号。

2. 发明申请

US20060029145A1 Method and apparatus for encoding interleaving and mapping data to facilitate GBPS data rates in wireless systems 有权
标题翻译：用于编码交织和映射数据以便于无线系统中的GBPS数据速率的方法和装置
公开(公告)号：US20060029145A1
公开(公告)日：2006-02-09
申请号：US11114752
申请日：2005-04-25
申请人： Sridhar Rajagopal , Matthew Shoemake , John Terry
发明人： Sridhar Rajagopal , Matthew Shoemake , John Terry
IPC分类号： H04L23/02
CPC分类号： H04L25/4917 , H03M13/2707 , H03M13/4161 , H04L1/0041 , H04L1/0054 , H04L1/006 , H04L1/0069 , H04L1/007 , H04L1/0071 , H04L27/34
摘要： A method and apparatus for encoding data for wireless transmission. The invention includes multi-level coding in which data is partitioned between two encoders, one for encoding Most Significant Bits (MSBs) and the other for encoding Least Significant Bits (LSBs). By partition bits separately for the MSBs and LSBs, the complexity of the decoder may be reduced. The MSBs and LSBs are interleaved such that each MSB is a function of just one LSB, simplifying branch metric selection during Viterbi decoding. This also allows parallel de-interleaving by the receiver, which reduces the interleaving latency of the receiver. A block interleaver jointly optimizes the symbol hamming distance of the symbols and the bit hamming distance of each constituent encoder for the MSBs and LSBs.
摘要翻译：一种用于编码无线传输数据的方法和装置。本发明包括多级编码，其中数据在两个编码器之间分配，一个用于编码最高有效位（MSB），另一个用于编码最低有效位（LSB）。通过分开MSB和LSB的分配位，解码器的复杂度可能会降低。 MSB和LSB被交错，使得每个MSB是仅一个LSB的函数，从而简化维特比解码期间的分支度量选择。这也允许接收机的并行解交织，这降低了接收机的交织等待时间。块交织器共同优化符号的符号汉明距离和每个组成编码器对于MSB和LSB的比特汉明距离。

3. 发明授权

US07684505B2 Method and apparatus for encoding interleaving and mapping data to facilitate GBPS data rates in wireless systems 有权
标题翻译：用于编码交织和映射数据以便于无线系统中的GBPS数据速率的方法和装置
公开(公告)号：US07684505B2
公开(公告)日：2010-03-23
申请号：US11114752
申请日：2005-04-25
申请人： Sridhar Rajagopal , Matthew B. Shoemake , John Terry
发明人： Sridhar Rajagopal , Matthew B. Shoemake , John Terry
IPC分类号： H04L5/12
CPC分类号： H04L25/4917 , H03M13/2707 , H03M13/4161 , H04L1/0041 , H04L1/0054 , H04L1/006 , H04L1/0069 , H04L1/007 , H04L1/0071 , H04L27/34
摘要： A method and apparatus for encoding data for wireless transmission. The invention includes multi-level coding in which data is partitioned between two encoders, one for encoding Most Significant Bits (MSBs) and the other for encoding Least Significant Bits (LSBs). By partition bits separately for the MSBs and LSBs, the complexity of the decoder may be reduced. The MSBs and LSBs are interleaved such that each MSB is a function of just one LSB, simplifying branch metric selection during Viterbi decoding. This also allows parallel de-interleaving by the receiver, which reduces the interleaving latency of the receiver. A block interleaver jointly optimizes the symbol hamming distance of the symbols and the bit hamming distance of each constituent encoder for the MSBs and LSBs.
摘要翻译：一种用于编码无线传输数据的方法和装置。本发明包括多级编码，其中数据在两个编码器之间分配，一个用于编码最高有效位（MSB），另一个用于编码最低有效位（LSB）。通过分开MSB和LSB的分配位，解码器的复杂度可能会降低。 MSB和LSB被交错，使得每个MSB是仅一个LSB的函数，从而简化维特比解码期间的分支度量选择。这也允许接收机的并行解交织，这降低了接收机的交织等待时间。块交织器共同优化符号的符号汉明距离和每个组成编码器对于MSB和LSB的比特汉明距离。

4. 发明申请

US20050226159A1 Apparatus, and associated method, for providing a medium access control layer hybrid automatic repeat request scheme for a carrier sense multiple access communication scheme 审中-公开
标题翻译：装置和相关方法，用于为载波侦听多址通信方案提供介质访问控制层混合自动重复请求方案
公开(公告)号：US20050226159A1
公开(公告)日：2005-10-13
申请号：US11101291
申请日：2005-04-07
申请人： John Terry , Matthew Shoemake
发明人： John Terry , Matthew Shoemake
IPC分类号： H04L1/12 , H04L1/18 , H04L12/28 , H04L29/06 , H04W28/04 , H04W74/02 , H04Q7/00
CPC分类号： H04L1/1829 , H04L1/1819 , H04L1/1845 , H04L1/1887 , H04L69/22 , H04W74/02
摘要： Apparatus, and an associated method, for providing a hybrid automatic repeat request (H-ARQ) scheme for the Medium Access Control Layer of an IEEE 802.11n-compliant wireless local area network system, or other carrier sense multiple access communication system. When a packet delivered to a destination station is unable successfully to be decoded, a negative acknowledgement message is generated and returned to a sending station to identify the failed decoding. Selection is made at the sending station to send information, such as pursuant to a soft combining scheme are pursuant to an incremental redundancy scheme. A detector and selector embodied at the destination station detects whether the packet has been successfully delivered to the destination station and selects in what manner to respond to the sending station in response thereto.
摘要翻译：用于提供符合IEEE 802.11n的无线局域网系统或其他载波侦听多址通信系统的媒体接入控制层的混合自动重传请求（H-ARQ）方案的装置和相关方法。当传送到目标站的分组无法成功解码时，产生否定的确认消息，并将其返回给发送站以识别失败的解码。在发送站进行选择，发送信息，如根据软组合方案按照增量冗余方案。在目的地站处体现的检测器和选择器检测分组是否已经被成功传送到目的地站并且以什么方式选择响应于发送站。

5. 发明授权

US07684753B2 Method and device for transmission parameter selection in mobile communications 有权
标题翻译：移动通信中传输参数选择的方法和装置
公开(公告)号：US07684753B2
公开(公告)日：2010-03-23
申请号：US10895816
申请日：2004-07-21
申请人： Dumitru Mihai Ionescu , John Terry , Victor Stolpman , Olav Tirkkonen , Pirjo Pasanen
发明人： Dumitru Mihai Ionescu , John Terry , Victor Stolpman , Olav Tirkkonen , Pirjo Pasanen
IPC分类号： H04B1/60 , H04B1/00
CPC分类号： H04W52/367 , H04L1/0003 , H04L1/0009 , H04L1/0618
摘要： In a MIMO delay spread (OFDM) system or a MIMO single carrier (non-OFDM) system wherein a transmitter transmits signals to a receiver through multipath fading channels, an equivalent frequency-domain MIMO multipath channel matrix is used to estimate the maximum mutual information regarding the relationship between transmitted signals and received signals. It is possible to compute the upper bound of the maximum mutual information at least based on the total energy of all resolvable paths in the fading channels. The upper bound or the changes in the upper bound can be used to adjust the transmission parameters used in data transmission. The transmission parameters include the modulation order in the modulation process, the code rate and the puncturing rate.
摘要翻译：在MIMO延迟扩展（OFDM）系统或MIMO单载波（non-OFDM）系统中，其中发射机通过多径衰落信道向接收机发送信号，使用等效的频域MIMO多径信道矩阵来估计最大互信息关于发射信号和接收信号之间的关系。至少基于衰落信道中的所有可解析路径的总能量，可以计算最大互信息的上限。上限或上限的变化可用于调整数据传输中使用的传输参数。传输参数包括调制过程中的调制阶数，码率和打孔速率。

6. 发明申请

US20100054906A1 RACKING SYSTEM AND METHOD OF STORING PALLETIZED ITEMS 审中-公开
标题翻译：储存系统和储存PALLETIZED项目的方法
公开(公告)号：US20100054906A1
公开(公告)日：2010-03-04
申请号：US12373177
申请日：2007-07-11
申请人： Dennis Hartman , John Terry
发明人： Dennis Hartman , John Terry
IPC分类号： A47F5/00 , A47B81/00 , B65G1/04
CPC分类号： B65G1/02
摘要： The present disclosure relates to a racking system and method of storing palletized items in the racking system. The present disclosure also relates to a racking system for storing multiple pallets stacked with the palletized items, the multiple pallets being deliverable for storage in the racking system by a fork lift vehicle.
摘要翻译：本发明涉及一种将堆垛物品储存在货架系统中的货架系统和方法。本公开还涉及一种用于存储堆叠在托盘物品上的多个托盘的货架系统，所述多个托盘可交付用于通过叉车车辆存放在货架系统中。

7. 发明授权

US07106802B1 Apparatus, and associated method, for forming a modulated signal utilizing OTD and TCM techniques 有权
标题翻译：用于使用OTD和TCM技术形成调制信号的装置和相关方法
公开(公告)号：US07106802B1
公开(公告)日：2006-09-12
申请号：US09672753
申请日：2000-09-28
申请人： Juha Heiskala , John Terry
发明人： Juha Heiskala , John Terry
IPC分类号： H04L5/12 , H04L1/02
CPC分类号： H04L1/006 , H04L1/0618
摘要： Apparatus, and an associated method, for facilitating communication of data upon a communication channel which exhibits fading. Orthogonal transmit diversity techniques and trellis-coded modulation techniques are utilized to form a signal permitting the communication of data at high data rates while maintaining spectral efficiency, good error rate performance, without excessive computational complexity. The apparatus and associated method is advantageously implemented in a WLAN (Wireless Local Area Network) constructed pursuant to the IEEE 802.11 standard.
摘要翻译：装置和相关方法，用于促进在呈现衰落的通信信道上的数据通信。正交发射分集技术和网格编码调制技术被用来形成允许以高数据速率通信数据的信号，同时保持频谱效率，良好的误码率性能，而不会有过多的计算复杂度。该装置和相关联的方法有利地在根据IEEE 802.11标准构建的WLAN（无线局域网）中实现。

8. 发明授权

US06901115B1 Coordinate interleaving, and deinterleaving, apparatus, and associated method, for a communication system 失效
标题翻译：用于通信系统的协调交织和解交织，装置和相关方法
公开(公告)号：US06901115B1
公开(公告)日：2005-05-31
申请号：US10085941
申请日：2002-02-28
申请人： John Terry
发明人： John Terry
IPC分类号： H03M13/27 , H04B7/02 , H04B7/06 , H04L27/04 , H04L27/06
CPC分类号： H03M13/6508 , H03M13/2703 , H03M13/2757 , H04B7/06
摘要： Apparatus, and associated method, for increasing the diversity levels of data communicated upon a channel susceptible to fading. Trellis-coded modulation is performed upon data to be communicated to form trellis-coded modulated and rotated symbols. Coordinate interleaving is performed by a coordinate interleaver upon selected ones of the modulated and rotated symbols. The coordinate interleaving is performed according to a selected coordinate interleaving scheme responsive to indications of channel conditions upon the communication channel. When delivered to a receiving station, a coordinate deinterleaver deinterleaves the interleaved symbols according to a coordinate deinterleaving scheme that corresponds to the coordinate interleaving scheme.
摘要翻译：装置和相关方法，用于增加在易于衰落的信道上传送的数据的分集水平。对要传送的数据执行网格编码调制以形成网格编码的调制和旋转的符号。坐标交织在调制和旋转的符号的选定的一个上由坐标交织器执行。响应于通信信道上的信道状态的指示，根据所选择的坐标交织方案执行坐标交织。当递送到接收站时，坐标解交织器根据与坐标交织方案相对应的坐标解交织方案对交错符号进行解交织。

9. 发明申请

US20050015703A1 Method and apparatus for packet aggregation in a wireless communication network 有权
标题翻译：用于无线通信网络中的分组聚合的方法和装置
公开(公告)号：US20050015703A1
公开(公告)日：2005-01-20
申请号：US10880379
申请日：2004-06-28
申请人： John Terry , Jari Jokela
发明人： John Terry , Jari Jokela
IPC分类号： G08C25/02 , H03M13/00 , H04L1/12 , H04L1/18 , H04L12/28 , H04W28/06
CPC分类号： H04L1/1867 , H04L1/1685 , H04L1/1854 , H04L1/1896 , H04L5/0007 , H04L5/0053 , H04W28/065
摘要： A method and apparatus for aggregating packets in a wireless communication system. The data to be transmitted is selected and packetized and formed into frames for transmission. Rather than send each frame individually, frames are grouped and transmitted with grouping indicia informing the recipients how to acknowledge successful receipt of the transmitted data. ACKs are sent at a predetermined time, or all together, divided by subcarrier in the case of an OFDMA network.
摘要翻译：一种用于在无线通信系统中聚合分组的方法和装置。要发送的数据被选择并分组并形成为用于传输的帧。不是单独发送每个帧，而是将分组标记分组并发送，通知收件人如何确认成功接收所发送的数据。在OFDMA网络的情况下，在预定时间或全部一起将ACK发送到子载波。

10. 发明申请

US20060026842A1 Safety razors 审中-公开
标题翻译：安全剃须刀
公开(公告)号：US20060026842A1
公开(公告)日：2006-02-09
申请号：US11215226
申请日：2005-08-29
申请人： Bernard Gilder , John Terry
发明人： Bernard Gilder , John Terry
IPC分类号： B26B21/00
CPC分类号： B26B21/4031 , B26B21/222
摘要： A safety razor unit including a guard, a cap, and a group of blades with parallel sharpened edges located between the guard and cap, the first or primary blade defining a blade edge nearest the guard having a negative exposure not greater than zero, and the last blade defining a blade edge nearest the cap having a positive exposure not less than zero.
摘要翻译：一种安全剃刀单元，包括防护罩，盖帽和一组叶片，其具有位于护罩和盖之间的平行的锋利边缘，第一或第一叶片限定最靠近防护罩的叶片边缘，其负的曝光不大于零，最后一个叶片限定最接近盖子的叶片边缘具有不小于零的正曝光。

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