公开(公告)号：US09451979B2

公开(公告)日：2016-09-27

申请号：US13120799

申请日：2009-09-24

申请人： Falguni Asrani ,  Ajay Shah ,  William Farinelli ,  Vincent Liu ,  Richard R. Anderson

发明人： Falguni Asrani ,  Ajay Shah ,  William Farinelli ,  Vincent Liu ,  Richard R. Anderson

IPC分类号： A61B17/50 ,  A61B17/322 ,  A61B17/00 ,  A61F2/10

CPC分类号： A61B17/322 ,  A61B2017/00969 ,  A61B2017/3225 ,  A61F2/105

摘要： Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site. The raised (removed) portions of the blisters can be removed and attached to a dressing material, and the portions from the donor (first) site can be placed onto the exposed blister areas at the recipient site.

摘要翻译： 提供了通过从供体（第一）部位收集少部分组织并将其施用于受体（第二）部位来提供影响皮肤外观的方法和装置。 多个微移植物可由一块移植组织形成，并附着于敷料。 然后可以将敷料材料膨胀以增加微移植物之间的间隔距离，并且具有连接到其上的间隔开的微移植物的敷料材料可以应用于制备的受体部位。 可以提供一种使用加压流体来膨胀敷料材料的装置。 另外的方法可以包括提供移植组织的小部分在溶液中的悬浮液。 该溶液可以注射到在受体（第二）部位形成的水疱中，组织部分允许附着和增殖。 还可以提供一种方法和装置，用于在施主部位和受体部位处形成相应的水泡。 泡罩的隆起（去除）部分可以被去除并附着到敷料材料上，并且来自供体（第一）部位的部分可以被放置在受体部位的暴露的吸塑区域上。

公开(公告)号：US20110264115A1

公开(公告)日：2011-10-27

申请号：US13120799

申请日：2009-09-24

申请人： Falguni Asrani ,  William Farinelli ,  Ajay Shah ,  Vincent Liu ,  Richard R. Anderson

发明人： Falguni Asrani ,  William Farinelli ,  Ajay Shah ,  Vincent Liu ,  Richard R. Anderson

IPC分类号： A61B17/50

CPC分类号： A61B17/322 ,  A61B2017/00969 ,  A61B2017/3225 ,  A61F2/105

摘要： Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site. The raised (removed) portions of the blisters can be removed and attached to a dressing material, and the portions from the donor (first) site can be placed onto the exposed blister areas at the recipient site.

摘要翻译： 提供了通过从供体（第一）部位收集少部分组织并将其施用于受体（第二）部位来提供影响皮肤外观的方法和装置。 多个微移植物可由一块移植组织形成，并附着于敷料。 然后可以将敷料材料膨胀以增加微移植物之间的间隔距离，并且具有连接到其上的间隔开的微移植物的敷料材料可以应用于制备的受体部位。 可以提供一种使用加压流体来膨胀敷料材料的装置。 另外的方法可以包括提供移植组织的小部分在溶液中的悬浮液。 该溶液可以注射到在受体（第二）部位形成的水疱中，组织部分允许附着和增殖。 还可以提供一种方法和装置，用于在施主部位和受体部位处形成相应的水泡。 泡罩的隆起（去除）部分可以被去除并附着到敷料材料上，并且来自供体（第一）部位的部分可以被放置在受体部位的暴露的吸塑区域上。

公开(公告)号：US20060171878A1

公开(公告)日：2006-08-03

申请号：US10566268

申请日：2004-07-24

申请人： Michael Blumenfeld ,  Vincent Liu ,  Bernd Mielke ,  Marcus Michel

发明人： Michael Blumenfeld ,  Vincent Liu ,  Bernd Mielke ,  Marcus Michel

IPC分类号： C01B6/24

CPC分类号： B01D53/04 ,  B01D53/047 ,  B01D2256/16 ,  B01D2257/7022 ,  C01B3/384 ,  C01B3/48 ,  C01B3/56 ,  C01B2203/00 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0288 ,  C01B2203/0415 ,  C01B2203/043 ,  C01B2203/0475 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/1241 ,  C01B2203/143 ,  C01B2203/146 ,  Y02C10/08 ,  Y02C20/20 ,  Y02E60/324 ,  Y02E60/364 ,  Y02P20/128 ,  Y02P20/152

摘要： The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow (8) by gas washing (7), and the washed hydrogen-rich gas flow (10) is subsequently divided in a pressure-swing adsorption system (11) into a product gas flow (12) made of hydrogen and a waste gas flow (13). The waste gas flow (13) is introduced with hydrogen (14), which is separated from the gas flow (10) after gas washing, into a reformer (4) which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out the method.

摘要翻译： 本发明涉及一种从含有甲烷，特别是天然气的气体中提取氢气的方法。 包含在气体中的烃在重整器（4）中通过蒸汽催化分解，以形成氢气，一氧化碳和二氧化碳。 所得一氧化碳与蒸汽的催化转化在下游转化步骤中发生，以形成一氧化碳和水。 二氧化碳通过气体洗涤（7）从转化气体流（8）中除去，洗涤后的富氢气流（10）随后在变压吸附系统（11）中分成产物气流（12 ）由氢气和废气流（13）制成。 在气体洗涤之后，废气流（13）被引入与气流（10）分离的氢（14），该重整器（4）基本上是无碳可燃气体，并在那里燃烧。 本发明还涉及一种用于实施该方法的系统。

公开(公告)号：US06961376B2

公开(公告)日：2005-11-01

申请号：US10183196

申请日：2002-06-25

申请人： Siu-Wai Wu ,  Vincent Liu ,  Yong He

发明人： Siu-Wai Wu ,  Vincent Liu ,  Yong He

IPC分类号： H04N7/26 ,  H04N7/12

CPC分类号： H04N19/194 ,  H04N19/115 ,  H04N19/14 ,  H04N19/172

摘要： Methods and apparatus for rate control in a dual pass encoding scheme are provided. A first pass encoder encodes alternate slices of anchor frames as I-slices and P-slices respectively in order to generate statistics for both I and P frame encoding for the same anchor frame. An initial complexity estimate for encoding a current frame is determined by the first pass encoder based on statistics from first pass encoding of the current frame and from first pass encoding of a prior encoded frame. A second pass encoder estimates an encoding complexity for the current frame based on the initial complexity and statistics from second pass encoding of the prior encoded frame. The second pass encoder then determines a bit budget for second pass encoding of the current frame based on the encoding complexity.

摘要翻译： 提供了双通道编码方案中的速率控制方法和装置。 第一遍编码器将锚帧的替代片分别编码为I片和P片，以便产生用于相同锚帧的I和P帧编码的统计。 用于编码当前帧的初始复杂度估计由第一遍编码器基于来自当前帧的第一遍编码和先前编码帧的第一遍编码的统计确定。 第二遍编码器基于来自先前编码帧的第二遍编码的初始复杂度和统计信息来估计当前帧的编码复杂度。 然后，第二遍编码器基于编码复杂度确定当前帧的第二遍编码的比特预算。

公开(公告)号：US06847656B1

公开(公告)日：2005-01-25

申请号：US09669517

申请日：2000-09-25

申请人： Siu-Wai Wu ,  Robert S. Nemiroff ,  Vincent Liu ,  Ajay Luthra

发明人： Siu-Wai Wu ,  Robert S. Nemiroff ,  Vincent Liu ,  Ajay Luthra

IPC分类号： H04N7/26 ,  H04N7/50 ,  H04N21/236 ,  H04N21/2365 ,  H04B1/66

CPC分类号： H04N21/23608 ,  H04N19/115 ,  H04N19/126 ,  H04N19/15 ,  H04N19/152 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/40 ,  H04N19/61 ,  H04N21/23655

摘要： An efficient statistical remultiplexer for processing a number of channels that include video data. In one aspect, transcoding of the video data is delayed while statistical information is obtained from the data. Bit rate need parameters for the data are determined based on the statistical information, and the video data is transcoded based on the respective bit rate need parameters following the delay. In another aspect, a transcoding bit rate for video frames is updated a plurality of times at successive intervals to allow a closer monitoring of the bit rate. Minimum and maximum bounds for the transcoding bit rate, e.g., for buffer overflow and underflow protection, are also updated in each interval. In another aspect, the pre-transcoding quantization scales of the macroblocks in a frame are scaled to provide corresponding new quantization scales for transcoding based on a ratio of a pre-transcoding amount of data in the frame and a target, post-transcoding amount of data for the frame. The quantization scales are adjusted for different portions of the frame as transcoding progresses to ensure that a minimum amount of transcoding bandwidth is allocated to each macroblock.

摘要翻译： 一种用于处理包括视频数据的多个信道的有效统计再分集器。 在一个方面，视频数据的代码转换被延迟，同时从数据中获得统计信息。 基于统计信息确定数据的比特率需要参数，并且根据延迟后的各个比特率需求参数对视频数据进行代码转换。 在另一方面，视频帧的代码转换比特率以连续的间隔多次更新，以允许更仔细地监视比特率。 代码转换比特率的最小和最大限制，例如用于缓冲区溢出和下溢保护，也在每个间隔中被更新。 在另一方面，对帧中的宏块进行预先转码的量化尺度进行缩放，以提供相应的新的用于代码转换的量化尺度，其基于帧中的数据的预转码量与目标之间的比率，后转码量 帧的数据。 当代码转换进行时，针对帧的不同部分调整量化尺度，以确保将最小量的代码转换带宽分配给每个宏块。

公开(公告)号：US5751378A

公开(公告)日：1998-05-12

申请号：US722468

申请日：1996-09-27

申请人： Xuemin Chen ,  Vincent Liu

发明人： Xuemin Chen ,  Vincent Liu

IPC分类号： H04N5/76 ,  H04N5/14 ,  H04N5/91 ,  H04N7/26 ,  H04N7/32 ,  H04N9/77

CPC分类号： H04N5/147 ,  G06T7/2053 ,  H04N19/142 ,  H04N19/179 ,  H04N19/87 ,  H04N5/145

摘要： In a method for detecting a scene change between a prior video picture and a current video picture of a sequence of pictures, an average luminance value is determined for a block pair of the prior and current video pictures. Preferably, the blocks of the block pair are located, respectively, in the same relative position in the prior and current pictures. An incremental visual sensation value is determined using a difference between the average luminance values. If the incremental visual sensation value exceeds a block contrast threshold level, a scene change is indicated. In particular, if the minimum of the average luminance values of the current and prior picture blocks exceeds a dark scene threshold, the incremental visual sensation value is determined using the ratio of (a) the absolute value of the difference between the average luminance values, and (b) the minimum of the average luminance values of the current and prior picture blocks. Otherwise, the incremental visual sensation value is determined using the ratio of (a) the absolute value of the difference, and (b) the dark scene threshold. The method may be optimized by adjusting the block size based on the relative amount of motion and the current picture type.

摘要翻译： 在用于检测先前视频图像和图像序列的当前视频图像之间的场景变化的方法中，为先前和当前视频图像的块对确定平均亮度值。 优选地，块对的块分别位于先前和当前图片中相同的相对位置。 使用平均亮度值之间的差确定增量视觉感觉值。 如果增量视觉感觉值超过块对比度阈值水平，则指示场景变化。 特别地，如果当前和先前图像块的平均亮度值的最小值超过暗场景阈值，则使用（a）平均亮度值之间的差的绝对值的比率来确定增量视觉感觉值， 和（b）当前和先前图像块的平均亮度值的最小值。 否则，使用（a）差的绝对值和（b）黑色场景阈值的比率来确定增量视觉感觉值。 可以通过基于运动的相对量和当前图像类型调整块大小来优化该方法。

公开(公告)号：US5295203A

公开(公告)日：1994-03-15

申请号：US858102

申请日：1992-03-26

申请人： Edward A. Krause ,  Adam Tom ,  Vincent Liu

发明人： Edward A. Krause ,  Adam Tom ,  Vincent Liu

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  G06K9/36

CPC分类号： G06T9/008 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/60 ,  H04N19/91

摘要： A vector coding scheme for video transform coefficients is provided. A vector is generated to identify a group of coefficients from a block of transform coefficients that qualify for transmission according to predetermined criteria. In an illustrated embodiment, only coefficients having nonzero amplitudes are transmitted. The vector is encoded to provide a vector code word for transmission. The coefficients from the group qualifying for transmission are encoded to provide coefficient code words for transmission. The vector code word correlates the coefficient code words to coefficient locations in the block. In a preferred embodiment, the block is divided into a plurality of regions containing subsets of coefficients. A separate vector is transmitted for each region, correlating the coefficient code words to coefficient locations in the corresponding region of the block.

摘要翻译： 提供了一种用于视频变换系数的矢量编码方案。 产生矢量以根据预定标准从符合传输资格的变换系数块中识别一组系数。 在所示实施例中，仅传送具有非零幅度的系数。 向量被编码以提供用于传输的向量码字。 编码符合传输的组的系数被编码以提供用于传输的系数码字。 矢量码字将系数码字与块中的系数位置相关联。 在优选实施例中，块被分成包含系数子集的多个区域。 对于每个区域发送单独的向量，将系数码字与块的相应区域中的系数位置相关联。

公开(公告)号：US5216503A

公开(公告)日：1993-06-01

申请号：US809561

申请日：1991-12-24

申请人： Woo H. Paik ,  Edward A. Krause ,  Vincent Liu ,  Paul Shen ,  Henry Derovanessian

发明人： Woo H. Paik ,  Edward A. Krause ,  Vincent Liu ,  Paul Shen ,  Henry Derovanessian

IPC分类号： H04N1/41 ,  G06T9/00 ,  H04N7/08 ,  H04N7/081 ,  H04N7/58 ,  H04N19/00 ,  H04N21/2365 ,  H04N21/434

CPC分类号： H04N21/2365 ,  H04N19/115 ,  H04N19/124 ,  H04N19/15 ,  H04N19/152 ,  H04N19/176 ,  H04N21/23655 ,  H04N21/4347 ,  H04N19/30

摘要： A multichannel image compression system uses a plurality of encoders to compress image data. A coding level command is provided to each of the encoders to specify a level of quality to be provided by each encoder. Encoded image data, provided by the encoders in response to the coding level command, is multiplexed into a combined signal for transmission. The coding level command is adjusted in response to an accumulated amount of data from the combined signal, to maintain the accumulated data within a throughput capability of a communication channel. Although the coding level command may specify a global coding level that is the same for all of the encoders, the encoders can derive local coding levels from the global coding level to provide different encoding qualities. Decoder apparatus is provided to recover an image from the compressed image data.

公开(公告)号：US5068724A

公开(公告)日：1991-11-26

申请号：US538823

申请日：1990-06-15

申请人： Edward A. Krause ,  Woo H. Paik ,  Vincent Liu ,  Jim Essserman

发明人： Edward A. Krause ,  Woo H. Paik ,  Vincent Liu ,  Jim Essserman

IPC分类号： H03M7/30 ,  G06T9/00 ,  H04N7/26 ,  H04N7/32 ,  H04N7/36 ,  H04N7/50

CPC分类号： H04N19/107 ,  H04N19/51 ,  H04N19/61

摘要： A method and apparatus are provided for processing digital video signals for transmission in a compressed form. A set of pixel data is compressed without motion compensation to provide a first compressed video signal. The pixel data is compressed using motion compensation to provide a second compressed video signal. The data in the first and second compressed video signals is quantified. A comparison is made to determine which of the signals contains the least data. Successive sets of pixel data are sequentially compressed and quantified and the compressed video signal having the least data for each particular set is selected. The selected signals are encoded to identify them as motion compensated or non-motion compensated signals, and combined to provide a compressed video signal data stream for transmission. Apparatus for receiving and decoding the signals is also disclosed.

公开(公告)号：US20110061529A1

公开(公告)日：2011-03-17

申请号：US12736046

申请日：2009-02-17

申请人： Thilo Von Trotha ,  Vincent Liu ,  Michael Wyschofsky

发明人： Thilo Von Trotha ,  Vincent Liu ,  Michael Wyschofsky

IPC分类号： B01D53/047

CPC分类号： B01D53/0476 ,  B01D2256/16 ,  B01D2257/504 ,  C01B3/34 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/043 ,  C01B2203/044 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/0495 ,  C01B2203/0838 ,  C01B2203/0883 ,  C01B2203/148 ,  C01B2203/84 ,  Y02C10/08 ,  Y02P20/152 ,  Y02P30/30

摘要： A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. Also disclosed is a device for running this process.

摘要翻译： 描述了一种通过变压吸附单元来净化合成气的方法，所述变压吸附装置由所谓的喷射器产生的真空解吸，所述真空由利用烟气管道中的热量的热交换器产生的蒸汽驱动， 在用于产生蒸汽的有用气体管道中。 变压吸附单元有利地在过压下循环吸附循环转动，减压解吸和真空解吸，并且通过喷射器解吸的气体在冷却器中冷却，使得所含蒸汽可以冷凝和排出，或者有利地返回到 用于合成气生产的原料气。 由至少部分尚未消耗的燃料气体的变压吸附单元解吸的外来气体被再循环到燃料气体中。 在有利的实施例中，来自喷射器的真空存储在中间罐中，并根据真空解吸循环施加到变压吸附单元。 还公开了用于运行该过程的装置。