公开(公告)号：US08019175B2

公开(公告)日：2011-09-13

申请号：US11183072

申请日：2005-07-15

申请人： Yen-Chi Lee ,  Khaled Helmi El-Maleh ,  Ming-Chang Tsai

发明人： Yen-Chi Lee ,  Khaled Helmi El-Maleh ,  Ming-Chang Tsai

IPC分类号： G06K9/20 ,  G06K9/46 ,  H04N7/14

CPC分类号： H04N21/4728 ,  H04N7/147 ,  H04N19/124 ,  H04N19/17 ,  H04N21/234345 ,  H04N21/4621

摘要： The disclosure is directed to techniques for region-of-interest (ROI) processing for video telephone (VT) applications. According to the disclosed techniques, a recipient device defines ROI information for video information transmitted by a sender device, i.e., far-end video information. The recipient device transmits the ROI information to the sender device. Using the ROI information transmitted by the recipient device, the sender device applies preferential encoding to an ROI within a video scene. In this manner, the recipient device is able to remotely control ROI encoding of far-end video information by the sender device.

摘要翻译： 本公开涉及用于视频电话（VT）应用的感兴趣区域（ROI）处理的技术。 根据所公开的技术，接收者设备定义由发送者设备发送的视频信息的ROI信息，即远端视频信息。 收件人设备将ROI信息发送给发送者设备。 使用由收件人设备发送的ROI信息，发送者设备对视频场景内的ROI应用优先编码。 以这种方式，接收方设备能够远程地控制发送者设备对远端视频信息的ROI编码。

公开(公告)号：US20200064379A1

公开(公告)日：2020-02-27

申请号：US16547604

申请日：2019-08-22

申请人： Fu-Te Yuan ,  Yen-Chi Lee

发明人： Fu-Te Yuan ,  Yen-Chi Lee

IPC分类号： G01R15/20

摘要： An electric current sensor includes a substrate, a first sloped surface, a second sloped surface, at least one conductive wire, a first anisotropic magnetoresistor (AMR) unit, a second AMR unit, a first magnetization direction setting device, and a second magnetization direction setting device. The first sloped surface and the second sloped surface are disposed on the substrate and arranged in a first direction. The at least one conductive wire extends along a second direction and is disposed beside the substrate. The first AMR unit is disposed on the first sloped surface. The second AMR unit is disposed on the second sloped surface. The first magnetization direction setting device and the second magnetization direction setting device are configured to set magnetization directions of the AMR units.

公开(公告)号：US09357233B2

公开(公告)日：2016-05-31

申请号：US12170991

申请日：2008-07-10

申请人： Yen-Chi Lee ,  Min Dai ,  Chia-Yuan Teng

发明人： Yen-Chi Lee ,  Min Dai ,  Chia-Yuan Teng

IPC分类号： H04N7/12 ,  H04N19/68 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/174 ,  H04N19/895 ,  H04N19/573 ,  H04N19/105 ,  H04N19/134

CPC分类号： H04N19/68 ,  H04N19/105 ,  H04N19/134 ,  H04N19/174 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70 ,  H04N19/895

摘要： A video decoder performs a sequential error handling process to detect and conceal errors within a corrupted data segment of video data units. The decoder sequentially decodes a current data unit. Upon detecting an error, the decoder sets an error flag and resynchronizes decoding at the start of the next unit. If the error flag is set, the video decoder identifies the end of the corrupted data segment based on the start of the later unit. The decoder conceals data between the start of the current unit and the end of the corrupted data segment. If the error flag is not set, the decoder may decode the remainder of the current unit and proceed to decode the next available unit without performing error handling and concealment for the current unit. The decoder also may address reference unit mismatches caused by lost video data units.

摘要翻译： 视频解码器执行顺序错误处理过程以检测和隐藏视频数据单元的损坏的数据段内的错误。 解码器对当前数据单元进行顺序解码。 在检测到错误时，解码器设置错误标志并在下一个单元的开始重新同步解码。 如果错误标志被设置，则视频解码器基于稍后单元的开始来识别损坏的数据段的结束。 解码器隐藏当前单元的开始和损坏的数据段的结束之间的数据。 如果错误标志未设置，则解码器可以对当前单元的剩余部分进行解码，并且继续对下一个可用单元进行解码，而不对当前单元执行错误处理和隐藏。 解码器还可以解决由丢失的视频数据单元引起的参考单元不匹配。

公开(公告)号：US08767839B2

公开(公告)日：2014-07-01

申请号：US11625787

申请日：2007-01-22

申请人： Yen-Chi Lee ,  Nikolai Konrad Nepomuceno Leung

发明人： Yen-Chi Lee ,  Nikolai Konrad Nepomuceno Leung

IPC分类号： H04B14/00 ,  H04N21/61 ,  H04N21/647

CPC分类号： H04N21/6131 ,  H04N19/107 ,  H04N19/166 ,  H04N19/172 ,  H04N19/176 ,  H04N19/895 ,  H04N21/6181 ,  H04N21/6473 ,  H04N21/64776

摘要： One technique for implementing error control in response to a video data error comprises receiving an indication of a video data error from a video decoder, determining whether the video data error occurred on a reverse link of a wireless network between a video encoder and a network device, and applying error control in response to the video data error if the video data error did not occur on the reverse link. For example, the indication of the video data error may include a first sequence number (SN) of a packet comprising lost data, and determining whether the video data error occurred on the reverse link may include comparing first SN with a second SN of a packet associated with a most recent RL error.

摘要翻译： 一种用于响应于视频数据错误执行错误控制的技术包括从视频解码器接收视频数据错误的指示，确定在视频编码器和网络设备之间的无线网络的反向链路上是否发生视频数据错误 并且如果在反向链路上没有发生视频数据错误，则应用视频数据错误的错误控制。 例如，视频数据错误的指示可以包括包含丢失数据的分组的第一序列号（SN），并且确定反向链路上发生的视频数据错误是否包括将第一SN与分组的第二SN进行比较 与最近的RL错误相关联。

公开(公告)号：US08102878B2

公开(公告)日：2012-01-24

申请号：US11240133

申请日：2005-09-29

申请人： Yen-Chi Lee

发明人： Yen-Chi Lee

IPC分类号： H04J3/16 ,  H04J3/22 ,  H04J3/12 ,  H04J3/02

CPC分类号： H04L47/10 ,  H04L1/0007 ,  H04L1/0014 ,  H04L1/0015 ,  H04L1/1877 ,  H04L47/14 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/365 ,  H04L2001/0092 ,  H04N7/148 ,  H04N21/23655 ,  H04N21/2368 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/4341 ,  H04N21/4788 ,  H04N21/6131 ,  H04N21/6377 ,  H04N21/64322 ,  H04N21/6437 ,  H04N21/658 ,  H04W28/06 ,  H04W72/12

摘要： The disclosure relates to techniques for video packet shaping for video telephony (VT). The techniques can be used to prioritize audio packets to reduce audio delay. Channel conditions, excessive video content, or both can cause delays in audio transmission. When reverse link (RL) throughput is reduced, video packet size can overwhelm the RL and increase audio delay. The video packet may consume an excessive number of MAC RLP packets, resulting in delays between successive audio packets. The size of each video packet is adjusted so that audio packets are prioritized for transmission without substantial delay. The video packet size may be controlled based on channel conditions. The audio can be conveyed without substantial delay, even though the video may suffer from delay due to channel conditions. Although video may be compromised by channel conditions, video packet shaping ensures that the VT parties are able to smoothly carry on verbal conversation.

摘要翻译： 本公开涉及用于视频电话（VT）的视频分组整形的技术。 这些技术可用于优先考虑音频数据包以减少音频延迟。 频道条件，视频内容过多或两者都可能导致音频传输延迟。 当反向链路（RL）吞吐量减小时，视频分组大小可以压倒RL并增加音频延迟。 视频分组可能消耗过多的MAC RLP分组，导致连续音频分组之间的延迟。 调整每个视频分组的大小，使得音频分组被优先排列，无需实质的延迟。 可以基于信道条件来控制视频分组大小。 即使视频可能由于信道条件而遭受延迟，音频也可以传输而没有实质的延迟。 虽然视频可能受到信道条件的影响，视频分组整形确保VT方能够顺利进行口头交谈。

公开(公告)号：US20100080296A1

公开(公告)日：2010-04-01

申请号：US12239196

申请日：2008-09-26

申请人： Yen-Chi Lee ,  Yiliang Bao

发明人： Yen-Chi Lee ,  Yiliang Bao

IPC分类号： H04N7/12

CPC分类号： H04N19/42 ,  H04N19/44 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

摘要： An apparatus performs efficient coding techniques to more efficiently locate motion vector data within neighboring video data units. The apparatus comprises a motion vector (MV) location unit that includes a look-up table (LUT), where the MV location unit obtains video data defining a plurality of video data units and processes the plurality of video data units. The apparatus further includes a geometric resolution unit that determines, while processing a current one of the plurality of video data units, which of the plurality of video data units neighbor the current video data unit. The MV location unit then accesses, for each of the neighboring video data units, the LUT to determine a location of a motion vector within a section of the video data to which the neighboring video data unit is associated.

摘要翻译： 一种装置执行有效的编码技术以更有效地定位相邻视频数据单元内的运动矢量数据。 该装置包括运动矢量（MV）位置单元，其包括查找表（LUT），其中MV位置单元获取定义多个视频数据单元的视频数据，并处理多个视频数据单元。 该装置还包括几何分辨单元，其在处理多个视频数据单元中的当前一个视频数据单元时，确定多个视频数据单元中的哪一个与当前视频数据单元相邻。 MV位置单元然后对于每个相邻视频数据单元访问LUT以确定相邻视频数据单元所关联的视频数据的一部分内的运动矢量的位置。

公开(公告)号：US07076100B2

公开(公告)日：2006-07-11

申请号：US10248111

申请日：2002-12-19

申请人： Yen-Chi Lee

发明人： Yen-Chi Lee

IPC分类号： G06K9/76

CPC分类号： G03H1/041 ,  G03H1/2286 ,  G03H1/265 ,  G03H2001/0016 ,  G03H2001/2223 ,  G03H2001/2231 ,  G03H2001/2244 ,  G06K7/10663 ,  G06K9/76

摘要： An apparatus for detecting a hidden image, which is formed in a first area of a hologram, is disclosed. The apparatus has a laser device for generating a laser beam and projecting the laser beam to the hologram, and a sensing device for sensing light that reflects from the hologram. When the laser beam is emitted to the hologram at a first incident angle, at least one diffractive beam is generated by diffraction of the laser beam. The sensing device is capable of outputting a responding signal according to the characteristics of the diffractive beam. Additionally, if the laser beam is emitted to the hologram at an incident angle, which is not equal to the first incident angle, the diffractive beam cannot be generated so that the sensing device does not output the responding signal.

摘要翻译： 公开了一种用于检测形成在全息图的第一区域中的隐藏图像的装置。 该装置具有用于产生激光束并将激光束投射到全息图的激光装置，以及用于感测从全息图反射的光的感测装置。 当激光束以第一入射角发射到全息图时，通过激光束的衍射产生至少一个衍射光束。 感测装置能够根据衍射光束的特性输出响应信号。 此外，如果激光束以不等于第一入射角的入射角发射到全息图，则不能产生衍射光束，使得感测装置不输出响应信号。

公开(公告)号：USD420696S

公开(公告)日：2000-02-15

申请号：US98277

申请日：1998-12-23

申请人： Yih Yung ,  Yen-Chi Lee

设计人： Yih Yung ,  Yen-Chi Lee

公开(公告)号：US08861601B2

公开(公告)日：2014-10-14

申请号：US11112531

申请日：2005-04-22

申请人： Gokce Dane ,  Khaled Helmi El-Maleh ,  Yen-Chi Lee

发明人： Gokce Dane ,  Khaled Helmi El-Maleh ,  Yen-Chi Lee

IPC分类号： H04N7/18 ,  H04N19/61 ,  H04N19/46 ,  H04N19/587 ,  H04N19/172 ,  H04N19/132 ,  H04N19/51

CPC分类号： H04N19/176 ,  H04N19/132 ,  H04N19/172 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/587 ,  H04N19/61

摘要： The disclosure is directed to techniques for encoder-assisted adaptive interpolation of video frames. According to the disclosed techniques, an encoder generates information to assist a decoder in interpolation of a skipped video frame, i.e., an S frame. The information permits the decoder to reduce visual artifacts in the interpolated frame and thereby achieve improved visual quality. The information may include interpolation equation labels that identify selected interpolation equations to be used by the decoder for individual video blocks. As an option, to conserve bandwidth, the equation labels may be transmitted for only selected video blocks that meet a criterion for encoder-assisted interpolation. Other video blocks without equation labels may be interpolated according to a default interpolation technique.

摘要翻译： 本公开涉及视频帧的编码器辅助自适应插值技术。 根据所公开的技术，编码器生成信息以帮助解码器插入跳过的视频帧，即S帧。 该信息允许解码器减少内插帧中的视觉伪影，从而实现改善的视觉质量。 该信息可以包括识别用于各个视频块的由解码器使用的所选内插方程的内插方程标签。 作为选择，为了节省带宽，可以仅针对满足编码器辅助插值的准则的所选择的视频块来发送等式标签。 没有等式标签的其他视频块可以根据默认内插技术进行内插。

公开(公告)号：US08406309B2

公开(公告)日：2013-03-26

申请号：US11445099

申请日：2006-05-31

申请人： Yen-Chi Lee ,  Christopher Gerard Lott ,  Peerapol Tinnakornsrisuphap ,  Vikram Gupta

发明人： Yen-Chi Lee ,  Christopher Gerard Lott ,  Peerapol Tinnakornsrisuphap ,  Vikram Gupta

IPC分类号： H04N7/18

CPC分类号： H04N21/23406 ,  H04N19/115 ,  H04N19/124 ,  H04N19/132 ,  H04N19/147 ,  H04N19/152 ,  H04N19/164 ,  H04N19/169 ,  H04N19/172 ,  H04N19/184 ,  H04N19/188 ,  H04N19/194 ,  H04N19/196 ,  H04N19/198 ,  H04N19/587 ,  H04N19/61 ,  H04N21/2368 ,  H04N21/23805 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/4341 ,  H04N21/44004 ,  H04N21/6125 ,  H04N21/6131 ,  H04N21/6175 ,  H04N21/6377 ,  H04N21/64322 ,  H04N21/6437 ,  H04N21/64769 ,  H04N21/64792 ,  H04N21/658 ,  H04W52/04

摘要： The disclosure relates to video rate adaptation techniques that may use information from a medium access control (MAC) layer and radio link protocol (RLP) layer. The techniques may greatly reduce video delay by adjusting video encoding rate. For real-time video telephony (VT) applications, these techniques may provide graceful quality degradation and improve user experience, especially when the channel conditions degrade.