公开(公告)号：US08923144B2

公开(公告)日：2014-12-30

申请号：US13007308

申请日：2011-01-14

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04L12/26 ,  H04W8/00

CPC分类号： H04W8/005

摘要： A method and system for device discovery in a wireless network is provided. The device discovery involves directionally transmitting a data unit from a transmitting station over a channel in different directions to emulate omni-directional transmission, receiving the data unit transmissions from different directions at a receiving station, determining the quality of the transmissions received from the different directions, and detecting location information for the transmitting station relative to the receiving station based on the highest quality transmission among the transmissions received from the different directions. Further, if a channel has sufficient bandwidth to satisfy direct link communication between two stations, then during a direct link set-up stage, the two stations conduct a probing message exchange using omni-direction transmission, and upon successful probing, obtain communication link status information and set proper communication configurations for the two stations based on the communication link status information.

摘要翻译： 提供了一种用于无线网络中的设备发现的方法和系统。 设备发现涉及通过不同方向上的信道从发射台定向发送数据单元以模拟全向传输，在接收站从不同方向接收数据单元传输，确定从不同方向接收的传输的质量 以及基于从不同方向接收的传输中的最高质量传输来检测发送站相对于接收站的位置信息。 此外，如果信道具有足够的带宽以满足两个站之间的直接链路通信，则在直接链路建立阶段期间，两个站使用全向传输进行探测消息交换，并且在成功探测时获得通信链路状态 信息，并根据通信链路状态信息设置两个站的适当通信配置。

公开(公告)号：US08824495B2

公开(公告)日：2014-09-02

申请号：US12415981

申请日：2009-03-31

申请人： Xiangping Qin ,  Harkirat Singh ,  Chiu Ngo

发明人： Xiangping Qin ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04L12/43 ,  H04W74/08

CPC分类号： H04W74/0891

摘要： A system and method of reserving bandwidth for disjoint time intervals in a wireless network. Parameters for a disjoint network allocation vector (NAV) define a reservation of a plurality of disjoint time durations during which transmissions by devices other than a target device are deferred. Parameters are sent as a control or data packet over a network and received by the devices associated with the network.

摘要翻译： 一种在无线网络中为不相交的时间间隔预留带宽的系统和方法。 不相交网络分配向量（NAV）的参数定义了多个不相交的时间段的预留，在该时间段期间延迟了除目标设备之外的设备的传输。 参数作为控制或数据包通过网络发送并由与网络相关联的设备接收。

公开(公告)号：US08605797B2

公开(公告)日：2013-12-10

申请号：US11598920

申请日：2006-11-13

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Chiu Ngo

IPC分类号： H04N11/04 ,  G06K9/46

CPC分类号： H04N19/89

摘要： A method and system for transmitting uncompressed video over a wireless channel by inputting a frame of pixel information, partitioning spatially correlated pixels into different packets, and transmitting the packets separately over a wireless channel. For robust transmission, error detection data can be generated for each packet and appended to each packet before transmission. A receiver receives the transmitted packets and checks if a received packet is corrupt based on the appended error detection data. For a corrupt packet, the receiver corrects the corrupt pixels using pixel information in other received packets containing neighboring pixels to recover each corrupt pixel in the corrupt packet.

摘要翻译： 一种方法和系统，用于通过输入像素信息的帧，通过无线信道发送未压缩的视频，将空间相关的像素划分成不同的分组，以及通过无线信道分别发送分组。 对于鲁棒传输，可以为每个分组生成错误检测数据，并在传输之前附加到每个分组。 接收器接收所发送的分组，并根据所附的错误检测数据来检查接收的分组是否损坏。 对于损坏的数据包，接收器使用包含相邻像素的其他接收数据包中的像素信息来校正损坏的像素，以恢复损坏的数据包中的每个损坏的像素。

公开(公告)号：US08601555B2

公开(公告)日：2013-12-03

申请号：US11948888

申请日：2007-11-30

申请人： Xiangping Qin ,  Harkirat Singh ,  Huai-Rong Shao ,  Chiu Ngo

发明人： Xiangping Qin ,  Harkirat Singh ,  Huai-Rong Shao ,  Chiu Ngo

IPC分类号： H04L29/06

CPC分类号： G06F21/105 ,  G06F21/445 ,  G06F21/606 ,  G06F2221/2115 ,  G06F2221/2129 ,  G06F2221/2137 ,  G06F2221/2145 ,  H04L9/3263 ,  H04L63/0823 ,  H04L63/104 ,  H04L2209/603 ,  H04L2209/80 ,  H04N21/2541 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/4627 ,  H04N21/632 ,  H04N21/835 ,  H04N21/8355

摘要： A system and method of providing domain management for content protection and security is disclosed. A secure device domain is generated to allow sharing of content among a plurality of consumer electronic devices. A domain management scheme for authenticating and managing consumer electronics devices in the secure device domain is provided.

摘要翻译： 公开了一种为内容保护和安全提供域管理的系统和方法。 生成安全设备域以允许在多个消费电子设备之间共享内容。 提供了用于认证和管理安全设备领域中的消费电子设备的域管理方案。

公开(公告)号：US08300661B2

公开(公告)日：2012-10-30

申请号：US11733633

申请日：2007-04-10

申请人： Harkirat Singh ,  Pengfei Xia ,  Huai-Rong Shao ,  Chiu Ngo

发明人： Harkirat Singh ,  Pengfei Xia ,  Huai-Rong Shao ,  Chiu Ngo

IPC分类号： H04J3/24

CPC分类号： H04N21/44227 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/007 ,  H04N21/4122 ,  H04N21/43637 ,  H04N21/4621 ,  H04N21/64792

摘要： Method and system for transmission of uncompressed video information from a sender to a receiver over wireless channels are disclosed. For example, according to one embodiment, when channel conditions (e.g., noise or interference) worsens, one or more least significant bits (LSB) of pixel data are not transmitted to save bandwidth for more efficient transmission. Furthermore, the remaining one or more of the most significant bits (MSB) of the pixel data are transmitted with coding and/or modulation schemes that provides extra error protection, relative to what is needed in regular channel conditions.

摘要翻译： 公开了一种用于通过无线信道从发送方发送到接收者的未压缩视频信息的方法和系统。 例如，根据一个实施例，当信道条件（例如，噪声或干扰）恶化时，不传输像素数据的一个或多个最低有效位（LSB）以节省用于更有效传输的带宽。 此外，相对于常规信道条件中需要的，通过提供额外的错误保护的编码和/或调制方案来发送像素数据的剩余一个或多个最高有效位（MSB）。

公开(公告)号：US20120263069A1

公开(公告)日：2012-10-18

申请号：US13526425

申请日：2012-06-18

申请人： Huai-Rong SHAO ,  Harkirat SINGH ,  Chiu NGO

发明人： Huai-Rong SHAO ,  Harkirat SINGH ,  Chiu NGO

IPC分类号： H04W48/16 ,  H04W76/02 ,  H04W24/00

CPC分类号： H04W8/005

摘要： A method and system for device discovery in a wireless network is provided. The device discovery involves directionally transmitting a data unit from a transmitting station over a channel in different directions to emulate omni-directional transmission, receiving the data unit transmissions from different directions at a receiving station, determining the quality of the transmissions received from the different directions, and detecting location information for the transmitting station relative to the receiving station based on the highest quality transmission among the transmissions received from the different directions. Further, if a channel has sufficient bandwidth to satisfy direct link communication between two stations, then during a direct link set-up stage, the two stations conduct a probing message exchange using omni-direction transmission, and upon successful probing, obtain communication link status information and set proper communication configurations for the two stations based on the communication link status information.

摘要翻译： 提供了一种用于无线网络中的设备发现的方法和系统。 设备发现涉及通过不同方向上的信道从发射台定向发送数据单元以模拟全向传输，在接收站从不同方向接收数据单元传输，确定从不同方向接收的传输的质量 以及基于从不同方向接收的传输中的最高质量传输来检测发送站相对于接收站的位置信息。 此外，如果信道具有足够的带宽以满足两个站之间的直接链路通信，则在直接链路建立阶段期间，两个站使用全向传输进行探测消息交换，并且在成功探测时获得通信链路状态 信息，并根据通信链路状态信息设置两个站的适当通信配置。

公开(公告)号：US08289940B2

公开(公告)日：2012-10-16

申请号：US12357360

申请日：2009-01-21

申请人： Harkirat Singh ,  Xiangping Qin ,  Chiu Ngo

发明人： Harkirat Singh ,  Xiangping Qin ,  Chiu Ngo

IPC分类号： H04W74/08

CPC分类号： H04B7/12 ,  H04B7/0615 ,  H04W16/24 ,  H04W74/002 ,  H04W74/0816

摘要： A system and method for wireless communication over multi-rate channels are disclosed. One embodiment of the system includes source and destination devices that use first and second channels under a contention-based protocol. The first channel is directional with a first frequency and a first range. The second channel is omni-directional with a second frequency and a second range. The second frequency is lower than the first frequency, and the second range is greater than the first range. The source device may send the destination device a request for data transmission via the first channel over the second channel. The destination device may send the source device an approval for the data transmission over the second channel. The source device may further transmit an acknowledgment (ACK) of the approval over the second channel upon receiving the approval to prevent other devices in the system from contending for data transmission.

摘要翻译： 公开了一种用于通过多速率信道进行无线通信的系统和方法。 该系统的一个实施例包括在基于竞争的协议下使用第一和第二信道的源设备和目的设备。 第一通道是具有第一频率和第一范围的方向。 第二个通道是全向的，具有第二个频率和第二个范围。 第二频率低于第一频率，第二频率大于第一频率。 源设备可以经由第二信道经由第一信道向目的地设备发送对数据传输的请求。 目的设备可以通过第二信道向源设备发送数据传输许可。 源设备可以在接收到批准以防止系统中的其他设备竞争数据传输时进一步发送通过第二信道的批准的确认（ACK）。

公开(公告)号：US20120151537A1

公开(公告)日：2012-06-14

申请号：US13308412

申请日：2011-11-30

申请人： Harkirat Singh ,  Ilju Na ,  Jae Min Lee ,  Chiu Ngo

发明人： Harkirat Singh ,  Ilju Na ,  Jae Min Lee ,  Chiu Ngo

IPC分类号： H04N21/00

CPC分类号： H04N21/43635 ,  H04L65/607

摘要： A method and system for communication between audio/video (AV) devices. In one embodiment communication between AV devices includes establishing an AV path stream for AV data streaming between a source AV device and a destination AV device, wherein each AV device includes one or more I/O ports for connecting the AV device to another AV device via a communication link including multiple communication lanes. Asynchronous and isochronous AV data is multiplexed for transmission via one or more fixed length data cells, each data cell capable of carrying one or more of: an asynchronous data symbol and an isochronous data symbol. Multiplexing includes selectively mapping asynchronous data onto isochronous symbols for transmission during a video blanking period. One or more data cells are transmitted from a physical layer of the source AV device to the destination AV device, via one or more communication lanes.

摘要翻译： 用于音频/视频（AV）设备之间通信的方法和系统。 在一个实施例中，AV设备之间的通信包括在源AV设备和目的地AV设备之间建立用于AV数据流的AV路径流，其中每个AV设备包括一个或多个用于将AV设备连接到另一AV设备的I / O端口， 包括多个通信线路的通信链路。 异步和等时AV数据被复用以经由一个或多个固定长度的数据信元进行发送，每个数据信元能够携带以下中的一个或多个：异步数据符号和等时数据符号。 多路复用包括将异步数据选择性地映射到同步符号上，以在视频消隐期间传输。 经由一个或多个通信线路将一个或多个数据信元从源AV设备的物理层发送到目的地AV设备。

公开(公告)号：US08169995B2

公开(公告)日：2012-05-01

申请号：US11868325

申请日：2007-10-05

申请人： Harkirat Singh ,  Huai-Rong Shao ,  Xiangping Qin ,  Chiu Ngo

发明人： Harkirat Singh ,  Huai-Rong Shao ,  Xiangping Qin ,  Chiu Ngo

IPC分类号： H04J3/24

CPC分类号： H04L1/1671 ,  H04N19/89 ,  H04N21/238 ,  H04N21/43615 ,  H04N21/43637 ,  H04N21/8458 ,  H04W28/065

摘要： A system and method using a medium access control (MAC) header for a wireless communication system including an application layer, a MAC layer, and a physical (PHY) layer is disclosed. The MAC header accommodates time-delay insensitive data transfer between devices located in the network. The MAC header finds particular benefits in short range networks that transfer high definition (HD) video between components. One embodiment of the invention comprises a method of transferring data in a wireless communication network for uncompressed video including fragmenting the data into a plurality of data packets; appending a PHY header to at least one of the data packets to form a MAC frame; setting a field in the PHY header to indicate that the packets do not contain audio video (A/V) data; and transmitting the MAC frame to another device in the wireless communication network.

摘要翻译： 公开了一种使用包括应用层，MAC层和物理（PHY）层的无线通信系统的介质访问控制（MAC）报头的系统和方法。 MAC报头适应位于网络中的设备之间的时延不敏感数据传输。 MAC标头在短距离网络中发现在组件之间传输高清（HD）视频的特殊优势。 本发明的一个实施例包括在用于未压缩视频的无线通信网络中传送数据的方法，包括将数据分段成多个数据分组; 将PHY报头附加到所述数据分组中的至少一个以形成MAC帧; 设置PHY报头中的一个字段以指示分组不包含音频视频（A / V）数据; 以及将所述MAC帧发送到所述无线通信网络中的另一设备。

公开(公告)号：US08135400B2

公开(公告)日：2012-03-13

申请号：US12014693

申请日：2008-01-15

申请人： Huai-Rong Shao ,  Harkirat Singh ,  Xiangping Qin ,  Chiu Ngo

发明人： Huai-Rong Shao ,  Harkirat Singh ,  Xiangping Qin ,  Chiu Ngo

IPC分类号： H04W4/00

CPC分类号： H04W8/005

摘要： The present invention provides a method and a system for device discovery in wireless communication. One implementation involves scanning one or more wireless channels to discover a partner wireless station for a new transmission, by detecting peak energy and beacons on each scanned channel. If a beacon is not detected, then selecting the clearest channel among the scanned channels, and transmitting beacons on the clearest channel. Upon detecting a beacon from a partner station, establishing association with the partner station and selecting a wireless data channel for communication with the partner station. Another implementation involves discovering a partner wireless station to establish a data channel for communication with a discovering station that is associated with a coordinator station, and transmitting a bandwidth reservation request to the coordinator to reserve channel time for control message exchange between the discovering station and the partner station.

摘要翻译： 本发明提供一种用于无线通信中的设备发现的方法和系统。 一个实现涉及扫描一个或多个无线信道以通过检测每个扫描信道上的峰值能量和信标来发现用于新传输的伙伴无线站。 如果没有检测到信标，则在扫描的信道中选择最清晰的信道，并在最清晰的信道上发送信标。 在从伙伴站检测到信标时，建立与对方站的关联，并且选择用于与对方站通信的无线数据信道。 另一实现包括发现伙伴无线站以建立用于与与协调器站相关联的发现站进行通信的数据信道，以及向协调器发送带宽预留请求以预留用于发现站和发射站之间的控制消息交换的信道时间 伙伴站。