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    Reverse link lower layer assisted video error control
    3.
    发明授权
    Reverse link lower layer assisted video error control 有权
    反向链路下层辅助视频错误控制

    公开(公告)号：US08514711B2

    公开(公告)日：2013-08-20

    申请号：US11454475

    申请日：2006-06-15

    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： H04L1/00

    CPC分类号： H04N21/6181 ,  H04N19/895 ,  H04N21/2662 ,  H04N21/6131 ,  H04N21/6473 ,  H04N21/64776 ,  H04N21/6583

    摘要： The disclosure relates to reverse link lower layer assisted video error control. A method may encode video data, form a packet with the encoded video data, and transmit the packet across a wireless channel to an access network. A medium access control (MAC) layer may receive a negative acknowledgement (NAK) from the access network. The method may determine whether the received NAK is associated with a packet that contains video data. If the received NAK is associated with a packet that contains video data, the method may perform error control.

    摘要翻译： 本公开涉及反向链路下层辅助视频错误控制。 一种方法可以对视频数据进行编码，形成具有编码视频数据的分组，并且通过无线信道将数据包发送到接入网络。 介质访问控制（MAC）层可以从接入网络接收否定的确认（NAK）。 该方法可以确定所接收的NAK是否与包含视频数据的分组相关联。 如果接收到的NAK与包含视频数据的分组相关联，则该方法可以执行错误控制。

    Reverse link lower layer assisted video error control
    4.
    发明申请
    Reverse link lower layer assisted video error control 有权
    反向链路下层辅助视频错误控制

    公开(公告)号：US20070091816A1

    公开(公告)日：2007-04-26

    申请号：US11454475

    申请日：2006-06-15

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

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

    IPC分类号： H04J1/16

    CPC分类号： H04N21/6181 ,  H04N19/895 ,  H04N21/2662 ,  H04N21/6131 ,  H04N21/6473 ,  H04N21/64776 ,  H04N21/6583

    摘要： The disclosure relates to reverse link lower layer assisted video error control. A method may encode video data, form a packet with the encoded video data, and transmit the packet across a wireless channel to an access network. A medium access control (MAC) layer may receive a negative acknowledgement (NAK) from the access network. The method may determine whether the received NAK is associated with a packet that contains video data. If the received NAK is associated with a packet that contains video data, the method may perform error control.

    摘要翻译： 本公开涉及反向链路下层辅助视频错误控制。 一种方法可以对视频数据进行编码，形成具有编码视频数据的分组，并且通过无线信道将数据包发送到接入网络。 介质访问控制（MAC）层可以从接入网络接收否定的确认（NAK）。 该方法可以确定所接收的NAK是否与包含视频数据的分组相关联。 如果接收到的NAK与包含视频数据的分组相关联，则该方法可以执行错误控制。

    ELECTRIC CURRENT SENSOR
    5.
    发明申请
    ELECTRIC CURRENT SENSOR 审中-公开

    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.

    Video decoder error handling
    6.
    发明授权
    Video decoder error handling 有权
    视频解码器错误处理

    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。

    Error filter to differentiate between reverse link and forward link video data errors
    7.
    发明授权
    Error filter to differentiate between reverse link and forward link video data errors 有权
    错误过滤器来区分反向链路和前向链路视频数据错误

    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。

    Video packet shaping for video telephony
    9.
    发明授权
    Video packet shaping for video telephony 有权
    用于视频电话的视频分组整形

    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。

    LOCATING MOTION VECTORS FOR VIDEO DATA UNITS
    10.
    发明申请
    LOCATING MOTION VECTORS FOR VIDEO DATA UNITS 失效
    定位视频数据单元的运动矢量图

    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。