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：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：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。

公开(公告)号：US08127206B2

公开(公告)日：2012-02-28

申请号：US12024898

申请日：2008-02-01

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

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

IPC分类号： G11C29/00

CPC分类号： H04N21/4402 ,  H04N19/895 ,  H04N21/43637 ,  H04N21/44227

摘要： A system and method for wireless communication of uncompressed video data includes concealing corrupted portions of video data. Video packets received are transmitted over a wireless channel. Each of the video packets includes data blocks forming video data representing at least part of a video frame. Each of the data blocks is encoded with an error correction code. A data block determined to be corrupted is replaced with an uncorrupted data block selected from the data blocks in the video packets. The corrupted data block includes a first displayable element on the video frame and the uncorrupted data block includes a second displayable element on the video frame. The uncorrupted data block is selected at least partially based on proximity between the first and second displayable elements on the video frame.

摘要翻译： 用于无压缩视频数据的无线通信的系统和方法包括隐藏视频数据的损坏部分。 通过无线信道发送接收到的视频数据包。 每个视频分组包括形成表示视频帧的至少一部分的视频数据的数据块。 每个数据块都用纠错码进行编码。 确定为被破坏的数据块被从视频数据包中的数据块中选择的未破坏的数据块替换。 损坏的数据块包括视频帧上的第一可显示元素，并且未损坏的数据块在视频帧上包括第二可显示元素。 至少部分地基于视频帧上的第一和第二可显示元件之间的接近度来选择未破坏的数据块。

公开(公告)号：US08102835B2

公开(公告)日：2012-01-24

申请号：US11936495

申请日：2007-11-07

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： H04J3/24 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W28/06

摘要： A system and method for efficiently communicating messages over a low-rate channel between multiple devices in a system for wireless communication of uncompressed video is disclosed. A beacon length indication and processing method is provided to solve the problem of long beacon processing delay at the MAC layer of a receiving station.

摘要翻译： 公开了一种用于在用于无压缩视频的无线通信的系统中的多个设备之间的低速率信道上有效地传送消息的系统和方法。 提供信标长度指示和处理方法，以解决接收站MAC层长信标处理延迟的问题。

公开(公告)号：US20080129881A1

公开(公告)日：2008-06-05

申请号：US11936600

申请日：2007-11-07

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： H04N5/38 ,  H04N5/44

CPC分类号： H04N5/38 ,  H04N21/43615 ,  H04N21/43637 ,  H04W28/06

摘要： A system and method for efficiently communicating messages over a low-rate channel between multiple devices in a system for wireless communication of uncompressed video is disclosed. The method includes various control bits in a beacon control field of a beacon frame to improve the efficiency of the beacon processing, thereby reducing beacon processing time and size of the beacon frame itself. The transmitting device can use one or more of the various control bits to indicate whether there are changes in various MAC payload information fields. The receiving station can use one or more of the control bits to eliminate the need to parse one or more MAC payload information fields whose values have not changed from the previous beacon frame.

摘要翻译： 公开了一种用于在用于无压缩视频的无线通信的系统中的多个设备之间的低速率信道上有效地传送消息的系统和方法。 该方法包括信标帧的信标控制字段中的各种控制位，以提高信标处理的效率，从而减少信标帧本身的信标处理时间和大小。 发送装置可以使用各种控制位中的一个或多个来指示各种MAC有效载荷信息字段中是否存在变化。 接收站可以使用一个或多个控制位来消除解析其值未从先前信标帧变化的一个或多个MAC有效载荷信息字段的需要。

公开(公告)号：US20080129879A1

公开(公告)日：2008-06-05

申请号：US11869636

申请日：2007-10-09

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： H04N5/38

CPC分类号： H04L65/4092 ,  H04L65/80 ,  H04N21/434 ,  H04N21/43615 ,  H04N21/43637 ,  H04N21/632 ,  H04N21/643

摘要： A system and method for wireless communication of uncompressed audiovisual data are disclosed. One embodiment of the system includes a first device and a second device wirelessly connectable to each other. The first device is configured to transmit a connection control information request from the first device to the second device, wherein the connection control information request includes a request for connection control information of the second device. The connection control information includes at least one of association information, wireless video area network (WVAN) information, device capability information, audio video (A/V) format capability information, bandwidth information, A/V stream start, stop or pause command information, and device control information. The request further includes connection control information of the first device. The second device is configured to transmit a connection control information response from the second device to the first device. The connection control information response includes the connection control information of the second device.

摘要翻译： 公开了一种用于无压缩视听数据的无线通信的系统和方法。 该系统的一个实施例包括可彼此无线连接的第一设备和第二设备。 第一设备被配置为将连接控制信息请求从第一设备发送到第二设备，其中，连接控制信息请求包括对第二设备的连接控制信息的请求。 连接控制信息包括关联信息，无线视频区域网络（WVAN）信息，设备能力信息，音频视频（A / V）格式能力信息，带宽信息，A / V流开始，停止或暂停命令信息中的至少一个 ，以及设备控制信息。 该请求还包括第一设备的连接控制信息。 第二设备被配置为将连接控制信息响应从第二设备发送到第一设备。 连接控制信息响应包括第二设备的连接控制信息。