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    • 1. 发明授权
    • Packet transmission apparatus and method using optimized punctured convolution codes
    • 分组传输装置和使用优化的穿孔卷积码的方法
    • US07650560B2
    • 2010-01-19
    • US11395920
    • 2006-03-31
    • Shaomin Samuel MoAlexander D. Gelman
    • Shaomin Samuel MoAlexander D. Gelman
    • H03M13/03
    • H03M13/6306H03M13/23H03M13/6368H04L1/0061H04L1/0068H04L1/0072H04L1/1819
    • A method of communication between or among a plurality of devices in a communication system using one or more frames to transmit a plurality of bits includes encoding the plurality of bits in accordance with a first puncture code in a first device of the plurality of devices, transmitting the plurality of encoded bits to a second device of the plurality of devices, and determining in the first device an error condition indicated in a received acknowledgement from the second device. When the error condition indicates a first error code, retransmitting the encoded bits in accordance with the first puncture code, and when the error condition indicates another error condition, different from the first error code, encoding the plurality of bits in accordance with a second puncture code, different from the first puncture code and transmitting the plurality of encoded bits to the second device.
    • 在使用一个或多个帧来发送多个比特的通信系统中的多个设备之间或之间进行通信的方法包括根据多个设备中的第一设备中的第一穿孔码对多个比特进行编码,发送 所述多个编码比特到所述多个设备中的第二设备,以及在所述第一设备中确定来自所述第二设备的接收到的确认中指示的错误状况。 当错误条件指示第一错误代码时,根据第一穿孔码重传编码比特,并且当错误条件指示与第一错误代码不同的另一个错误条件时,根据第二次穿刺对多个比特进行编码 代码,与第一穿孔码不同,并将多个编码比特发送到第二设备。
    • 5. 发明授权
    • Methods and apparatus for multi-layer data hiding
    • 多层数据隐藏的方法和装置
    • US06456726B1
    • 2002-09-24
    • US09427321
    • 1999-10-26
    • Hong Heather YuMin WuXin LiAlexander D. Gelman
    • Hong Heather YuMin WuXin LiAlexander D. Gelman
    • G06K900
    • G06T1/0071G06T1/0021
    • A data hiding system and method for providing a method of embedding multiple layers of hidden data into multimedia data. First, a media unit of the multimedia data is evaluated to determine an appropriate embedding procedure. Next during a first embedding pass, a ruling layer of primary hidden data is embedded into the media unit. In another embedding pass, a governing layer of secondary hidden data is embedded on top of the ruling layer. The secondary hidden data provides control information for controlling the primary hidden data and the host data. Control information such as error correction data, synchronization data, decoding data, and authentication data is embedded in the governing layer. Embedding schemes such as base domain and spectrum domain embedding are employed.
    • 一种用于提供将多层隐藏数据嵌入多媒体数据的方法的数据隐藏系统和方法。 首先,评估多媒体数据的媒体单元以确定适当的嵌入过程。 接下来在第一次嵌入过程中,将主要隐藏数据的划分层嵌入到媒体单元中。 在另一个嵌入通道中,辅助隐藏数据的控制层嵌入在规则层的顶部。 辅助隐藏数据提供用于控制主要隐藏数据和主机数据的控制信息。 诸如纠错数据,同步数据,解码数据和认证数据之类的控制信息被嵌入在控制层中。 采用嵌入方案,如基域和频域嵌入。
    • 7. 发明申请
    • Enhanced transmission systems for use in wireless personal area networks
    • 用于无线个人区域网络的增强型传输系统
    • US20090122987A1
    • 2009-05-14
    • US11665624
    • 2005-10-18
    • Shaomin Samuel MoAlexander D. Gelman
    • Shaomin Samuel MoAlexander D. Gelman
    • H04L9/00
    • H04L1/1685
    • Method and computer program products for enhancing wireless communication in a wireless network are disclosed. In the wireless network, frames of data are transmitted in bursts. Wireless communication is enhanced by transmitting a first frame of source data that is scrambled using a scrambling sequence in a first burst, storing an indicator corresponding to the scrambling sequence for the first frame, identifying the scrambling sequence of the first frame for retransmission of the first frame, retransmitting the first frame (which is scrambled using the identified scrambling sequence) in a subsequent burst, receiving the transmitted and retransmitted first frames, and processing the received transmitted and retransmitted first frames to recover the source data.
    • 公开了一种用于增强无线网络中的无线通信的方法和计算机程序产品。 在无线网络中,数据帧以突发方式发送。 通过发送使用第一突发中的加扰序列加扰的源数据的第一帧来增强无线通信,存储与第一帧的加扰序列相对应的指示符,识别用于重发第一帧的第一帧的加扰序列 帧,在随后的突发中重传第一帧(使用所识别的加扰序列进行加扰),接收所发射和重发的第一帧,并处理接收到的发送和重发的第一帧以恢复源数据。