公开(公告)号：US20090252146A1

公开(公告)日：2009-10-08

申请号：US12061661

申请日：2008-04-03

申请人： Chong Luo ,  Wei Pu ,  Feng Wu ,  Shipeng Li ,  Chang Wen Chen

发明人： Chong Luo ,  Wei Pu ,  Feng Wu ,  Shipeng Li ,  Chang Wen Chen

IPC分类号： H04L12/28

CPC分类号： H04B7/15521 ,  H03M13/1102 ,  H03M13/2906 ,  H03M13/3761 ,  H04L1/0057 ,  H04L1/0077 ,  H04L2001/0097

摘要： Described is continuous network coding, in which a relay sends probability data comprising a continuous number for use as parity data. The node receives streams of bits sent from sources towards a destination, and computes the probability data based on current noise data and/or fading data. A selected set of the bits (all or some subset thereof) are combined, e.g., XOR-ed or concatenated, and send to the destination. Phase modulation is performed to convey probability information based on the probability data. The destination demodulates the signal to obtain the probability information, and combines the probability information with the data directly received from sources to perform joint decoding. The number of bits in the set of selected bits may be adaptively chosen based on current channel conditions, e.g., increased when the channel conditions from the sources directly to a destination are poor relative to the channel conditions via the relay.

摘要翻译： 描述了连续网络编码，其中中继发送包括用作奇偶校验数据的连续数字的概率数据。 节点接收从源向目的地发送的比特流，并且基于当前噪声数据和/或衰落数据计算概率数据。 选择的一组位（其全部或某些子集）被组合，例如XOR编辑或级联，并发送到目的地。 执行相位调制以基于概率数据传送概率信息。 目的地解调信号以获得概率信息，并且将概率信息与从源直接接收的数据组合以执行联合解码。 可以基于当前信道条件来自适应地选择所选位组中的比特数，例如，当从源直接到目的地的信道条件相对于经由中继的信道条件差时，增加。

公开(公告)号：US07023447B2

公开(公告)日：2006-04-04

申请号：US09847636

申请日：2001-05-02

申请人： Jiebo Luo ,  Yue Yu ,  Chang Wen Chen

发明人： Jiebo Luo ,  Yue Yu ,  Chang Wen Chen

IPC分类号： G09G5/00

CPC分类号： G06T11/001

摘要： A novel multi-resolution block sampling based texture analysis/synthesis algorithm. A reference texture is assumed to be sample from a probability function. The synthesis of a similar, but distinctive, synthetic texture is handled in a process and by an apparatus that first estimates and then resamples the probability function. In order to achieve good and fast estimation of the probability function for a reference texture and in order to retain the texel structural information during the synthesis, a novel concept of block sampling and a corresponding novel texture synthesis scheme based on multi-resolution block sampling is employed. As a result of this novel approach, the computational complexity of the present invention is much lower than that of other approaches to the problem. In addition, for textures that exhibit a high degree of directionality, a process, which integrates estimation of dominant texture direction and the synthesis algorithm is employed to handle directional textures. The dominant direction is used to orient and then control the synthesis process so as to preserve the dominant reference image direction.

公开(公告)号：US20120121030A1

公开(公告)日：2012-05-17

申请号：US12945741

申请日：2010-11-12

申请人： Chong Luo ,  Kun Tan ,  Feng Wu ,  Hao Cui ,  Chang Wen Chen

发明人： Chong Luo ,  Kun Tan ,  Feng Wu ,  Hao Cui ,  Chang Wen Chen

IPC分类号： H04L5/12

CPC分类号： H04L27/3416 ,  H04L1/005 ,  H04L1/1812

摘要： A projection code is applied to encode symbols as weighted arithmetic sums of approximately random subsets of binary source bits. Pairs of the symbols are combined to form constellation points, which are sequentially mapped through a constellation to modulate a data signal.

摘要翻译： 应用投影码将符号编码为二进制源比特的近似随机子集的加权算术和。 这些符号的组合被组合以形成星座点，其通过星座顺序映射以调制数据信号。

公开(公告)号：US07953224B2

公开(公告)日：2011-05-31

申请号：US11419464

申请日：2006-05-19

申请人： Bin Zhu ,  Chang Wen Chen ,  Shipeng Li ,  Yang Yang

发明人： Bin Zhu ,  Chang Wen Chen ,  Shipeng Li ,  Yang Yang

IPC分类号： H04L9/00

CPC分类号： H04N7/1675 ,  H04N19/20 ,  H04N19/34 ,  H04N21/2347 ,  H04N21/8451

摘要： A method and system for encrypting a video compressed with MPEG-4 FGS compression with minimal overhead is provided. The encryption system encrypts the video into independently encrypted segments that can be either a video packet or a video block. When the encryption system encrypts based on video packets, it encrypts the data to ensure that the encrypted data does not emulate any video packet delimiting markers. When the encryption system encrypts based on video blocks, it encrypts the coded bitstream for each video block independently, from the most significant bitplane to the least significant bitplane, using either a stream or a block cipher. After all the video blocks are independently encrypted, the encryption system partitions the encrypted data into video packets and adds a buffering bit, if necessary, to prevent emulation of video packet delimiting markers. The encryption system may generate an initialization vector for each independently encrypted segment.

摘要翻译： 提供了一种用于以最小的开销加密以MPEG-4FGS压缩压缩的视频的方法和系统。 加密系统将视频加密成可以是视频分组或视频块的独立加密的分段。 当加密系统基于视频数据包进行加密时，它对数据进行加密，以确保加密的数据不会模拟任何视频数据包分隔标记。 当加密系统基于视频块加密时，它使用流或分组密码，从最高有效位平面到最低有效位平面，独立地加密每个视频块的编码位流。 在所有视频块被独立加密之后，加密系统将加密的数据分割成视频分组，并在必要时添加缓冲位以防止视频分组分隔标记的仿真。 加密系统可以为每个独立加密的段生成初始化向量。

公开(公告)号：US5998717A

公开(公告)日：1999-12-07

申请号：US114046

申请日：1998-07-13

申请人： Chang-Wen Chen

发明人： Chang-Wen Chen

IPC分类号： G10D13/02 ,  G10G5/00

CPC分类号： G10D13/026

摘要： A kettledrum is connected to a support leg stand by a connecting mechanism which includes a connecting member attached to the leg stand and a drum clamping mechanism attached to the counterhoop of the drum. The drum clamping mechanism includes an auxiliary clamping unit having a joining part which engages a joining hole formed in a main clamping unit. Three connecting mechanisms may be equiangularly spaced around the drum for providing a stable support of the drum and reduction of vibrations.

摘要翻译： 通过连接机构连接支架脚架，该连接机构包括连接到脚架的连接部件和连接到滚筒副的鼓夹紧机构。 鼓夹持机构包括辅助夹紧单元，其具有与形成在主夹紧单元中的接合孔接合的接合部。 三个连接机构可以围绕滚筒等角间隔，以提供滚筒的稳定支撑和减少振动。

公开(公告)号：US5627882A

公开(公告)日：1997-05-06

申请号：US249428

申请日：1994-05-26

申请人： Cheng-Tung Chien ,  Chang-Wen Chen ,  Chiu-Hong But

发明人： Cheng-Tung Chien ,  Chang-Wen Chen ,  Chiu-Hong But

IPC分类号： H04B7/26 ,  H04B1/16 ,  H04M1/73 ,  H04W48/16 ,  H04W52/02 ,  H04W88/02 ,  H04Q7/18

CPC分类号： H04W52/0232 ,  H04M1/73 ,  H04W48/16 ,  H04W88/02 ,  Y02B60/50

摘要： An enhanced power saving method for operating a battery powered hand-held communication system, particularly a cordless phone system, and the communication system constructed in accordance with the power saving method are described. The power saving method consists of an algorithm which divides the standby time of the communication system into a scanning mode and a sleep mode having several different levels to allow the system to enter the scanning mode intermittently. Each level of the sleep mode corresponds to a given length of delay time between two successive scanning periods. The communication system enters different levels of the sleep mode in accordance with the standby time history. The more standby time that passes, the longer the sleep time for the level that the system may enter. This reduces the scan rate when the system is not used for a long period.

摘要翻译： 描述了用于操作电池供电的手持通信系统，特别是无绳电话系统的增强的省电方法以及根据省电方法构建的通信系统。 省电方法包括将通信系统的待机时间分为扫描模式的算法和具有若干不同级别的睡眠模式，以允许系统间歇地进入扫描模式。 睡眠模式的每个级别对应于两个连续扫描周期之间的给定长度的延迟时间。 通信系统根据待机时间历史进入睡眠模式的不同级别。 待机时间越长，系统可能进入的级别的睡眠时间越长。 当系统长时间不使用时，这会降低扫描速率。

公开(公告)号：US08971433B2

公开(公告)日：2015-03-03

申请号：US12945741

申请日：2010-11-12

申请人： Chong Luo ,  Kun Tan ,  Feng Wu ,  Hao Cui ,  Chang Wen Chen

发明人： Chong Luo ,  Kun Tan ,  Feng Wu ,  Hao Cui ,  Chang Wen Chen

IPC分类号： H04L5/12 ,  H04L27/34 ,  H04L1/00 ,  H04L1/18

CPC分类号： H04L27/3416 ,  H04L1/005 ,  H04L1/1812

摘要： A projection code is applied to encode symbols as weighted arithmetic sums of approximately random subsets of binary source bits. Pairs of the symbols are combined to form constellation points, which are sequentially mapped through a constellation to modulate a data signal.

摘要翻译： 应用投影码将符号编码为二进制源比特的近似随机子集的加权算术和。 这些符号的组合被组合以形成星座点，其通过星座顺序映射以调制数据信号。

公开(公告)号：US08687530B2

公开(公告)日：2014-04-01

申请号：US12117756

申请日：2008-05-09

申请人： Chong Luo ,  Han Cheng Lu ,  Wei Pu ,  Feng Wu ,  Chang Wen Chen

发明人： Chong Luo ,  Han Cheng Lu ,  Wei Pu ,  Feng Wu ,  Chang Wen Chen

IPC分类号： H04B7/00 ,  H04B7/216

CPC分类号： H04W28/06 ,  H04B7/15521 ,  H04L47/50 ,  H04L49/90

摘要： Described is a technology by which a roadside-to-vehicle communication system may be implemented, including via a stateful scheduling with network coding scheme that enhances network capacity. Moving vehicles request and receive data from a roadside access points. Each of the access points operate a stateful scheduling algorithm that serves multiple vehicles by integrating network coding within a timeslot. In one aspect, the state of each vehicle's previously received and retained data is obtained, and used to enhance network capacity by combining as many packets as possible for multiple recipients in network coding.

摘要翻译： 描述了可以通过具有增强网络容量的网络编码方案的有状态调度来实现路边到车辆通信系统的技术。 移动车辆从路边接入点请求并接收数据。 每个接入点通过在时隙内集成网络编码来操作有状态调度算法，该算法为多个车辆提供服务。 在一个方面，获得每个车辆先前接收和保留的数据的状态，并且用于通过在网络编码中为多个接收者组合尽可能多的分组来增强网络容量。

公开(公告)号：US20090279462A1

公开(公告)日：2009-11-12

申请号：US12117756

申请日：2008-05-09

申请人： Chong Luo ,  Han Cheng Lu ,  Wei Pu ,  Feng Wu ,  Chang Wen Chen

发明人： Chong Luo ,  Han Cheng Lu ,  Wei Pu ,  Feng Wu ,  Chang Wen Chen

IPC分类号： H04B7/00

CPC分类号： H04W28/06 ,  H04B7/15521 ,  H04L47/50 ,  H04L49/90

摘要： Described is a technology by which a roadside-to-vehicle communication system may be implemented, including via a stateful scheduling with network coding scheme that enhances network capacity. Moving vehicles request and receive data from a roadside access points. Each of the access points operate a stateful scheduling algorithm that serves multiple vehicles by integrating network coding within a timeslot. In one aspect, the state of each vehicle's previously received and retained data is obtained, and used to enhance network capacity by combining as many packets as possible for multiple recipients in network coding.

摘要翻译： 描述了可以通过具有增强网络容量的网络编码方案的有状态调度来实现路边到车辆通信系统的技术。 移动车辆从路边接入点请求并接收数据。 每个接入点通过在时隙内集成网络编码来操作有状态调度算法，该算法为多个车辆提供服务。 在一个方面，获得每个车辆先前接收和保留的数据的状态，并且用于通过在网络编码中为多个接收者组合尽可能多的分组来增强网络容量。

公开(公告)号：US5628088A

公开(公告)日：1997-05-13

申请号：US508948

申请日：1995-07-24

申请人： Chang-Wen Chen

发明人： Chang-Wen Chen

IPC分类号： A45C13/26 ,  B25G1/04

CPC分类号： A45C13/262 ,  Y10T16/451

摘要： A multistage adjustable device for trunk bracket has a fixed handle, a driving handle, two inner sleeves, two drawbars, two brakes, two seats, two checking bodies, two outer sleeves and two positioning plates. The fixed handle has two ends. Two sockets are disposed in the corresponding ends of the fixed handle. The front end of the inner sleeve is inserted in the socket. A slot is formed on the socket and a corresponding slot is formed on the inner sleeve. Two recess holes are formed in the two end portions of the fixed handle. Each end of the driving handle has a fin which has a hole to be hooked by a hook at the upper end of the drawbar. Two posts protrude upwardly on the two end portions of the driving handle. The posts are inserted in the recess holes. A hollow inner sleeve connects the socket. The lower end of the drawbar is inserted in the brake which has a stop portion and a shaft sleeve. The checking body has a cap and a positioning rod. The hollow outer sleeve has two compartments to receive a positioning plate and a seat.

摘要翻译： 主体支架的多级可调节装置具有固定手柄，驱动手柄，两个内套筒，两个拉杆，两个制动器，两个座椅，两个检查体，两个外套筒和两个定位板。 固定手柄有两端。 两个插座设置在固定手柄的相应端部。 内套筒的前端插入插座。 在插座上形成有槽，并且在内套筒上形成相应的槽。 在固定手柄的两个端部形成两个凹槽。 驱动手柄的每一端具有一个翅片，该翼片具有在牵引杆上端由钩钩住的孔。 两个柱在驱动手柄的两个端部上向上突出。 柱插入凹孔中。 中空的内套筒连接插座。 牵引杆的下端插入具有止动部分和轴套的制动器中。 检查体具有盖和定位杆。 中空的外套筒具有两个容纳定位板和座的隔室。