公开(公告)号：US20090034610A1

公开(公告)日：2009-02-05

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： H04N7/12

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.

摘要翻译： 本公开涉及可以使用来自媒体接入控制（MAC）层和无线电链路协议（RLP）层的信息的视频速率适配技术。 这些技术可以通过调整视频编码速率来大大减少视频延迟。 对于实时视频电话（VT）应用，这些技术可能会提供优雅的质量下降和改善用户体验，特别是当信道状况恶化时。

公开(公告)号：US20080176517A1

公开(公告)日：2008-07-24

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

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：US20080157626A1

公开(公告)日：2008-07-03

申请号：US11797243

申请日：2007-05-02

申请人： Alex Horng ,  I-Yu Huang ,  Yen-Chi Lee ,  Chun-Ying Lin

发明人： Alex Horng ,  I-Yu Huang ,  Yen-Chi Lee ,  Chun-Ying Lin

IPC分类号： H02N11/00

CPC分类号： H02N1/002

摘要： To improve the yield, lifetime and driving voltage of the micro scratch drive actuator (SDA), this invention proposes a novel layout design including the etch holes and flange structure designs.Once the etch holes added to the layout of conventional SDA plate, the releasing of structure layer can be accelerated and the accumulated residual charges in the front end of SDA plate is reduced. In this innovative design, a longer lifetime and lower driving voltage of the SDA device can be achieved. On the other hand, adding the flange structure design in the corner of the beam-to-plate conjunction can improve the flexural rigidity of the narrow polysilicon supporting beam which will further enhance the yield of the SDA device and reduce the crack failure under actuating situation.

摘要翻译： 为了提高微刮擦驱动执行器（SDA）的产量，寿命和驱动电压，本发明提出了一种新颖的布局设计，包括蚀刻孔和法兰结构设计。 一旦添加到常规SDA板的布局中的蚀刻孔，可以加速结构层的释放，并减少SDA板的前端中累积的残留电荷。 在这种创新设计中，可以实现SDA器件寿命更长，驱动电压更低。 另一方面，将法兰结构设计添加到梁对板连接的角部可以提高窄多晶硅支撑梁的抗弯刚度，这将进一步提高SDA装置的产量，并减少启动情况下的裂纹破坏 。

公开(公告)号：US20080157625A1

公开(公告)日：2008-07-03

申请号：US11790718

申请日：2007-04-27

申请人： Alex Horng ,  I-Yu Huang ,  Yen-Chi Lee ,  Chun-Ying Lin

发明人： Alex Horng ,  I-Yu Huang ,  Yen-Chi Lee ,  Chun-Ying Lin

IPC分类号： H02N11/00 ,  C01B33/02 ,  H01H57/00

CPC分类号： H02N1/002 ,  H02K7/14

摘要： Based on the voltage-division theory, this invention proposes a new method to decrease the driving voltage of the micro scratch drive actuator (SDA) by using an ultra-low resistivity silicon wafer as substrate. This patent has compared two SDA actuators with the same layout and fabricating processes but under different resistivity of substrate. The SDA fabricated on the ultra-low resistivity silicon wafer has demonstrated a lower driving voltage of only about 4˜12 Vo-p. However, the conventional SDA using normal silicon wafer needs higher driving voltage (30˜75 Vo-p), thus has lower probability for commercial applications. On the other hand, this invention presents a new SDA process to overcome the inherent 2 μm line-width limitation of conventional mask aligner with 4360 Å UV wavelength light source (g-line) and further to reduce the driving voltage of SDA.

摘要翻译： 基于分压理论，本发明提出了一种通过使用超低电阻率硅晶片作为衬底来降低微刮擦驱动致动器（SDA）的驱动电压的新方法。 该专利比较了具有相同布局和制造工艺但在不同电阻率的基板上的两个SDA致动器。 在超低电阻率硅晶片上制造的SDA已经表现出较低的驱动电压仅为约4〜12V o-p 。 然而，使用普通硅晶片的常规SDA需要较高的驱动电压（30〜75V o-p），因此对于商业应用具有较低的概率。 另一方面，本发明提出了一种新的SDA方法，以克服具有4360A紫外线波长光源（g-line）的常规掩模对准器的固有2 mum线宽限制，并进一步降低SDA的驱动电压。

公开(公告)号：US20080084933A1

公开(公告)日：2008-04-10

申请号：US11535380

申请日：2006-09-26

申请人： Yen-Chi Lee ,  Jill Olson

发明人： Yen-Chi Lee ,  Jill Olson

IPC分类号： H04N7/12

CPC分类号： H04N21/64322 ,  H04N7/147 ,  H04N19/68 ,  H04N19/89 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/2389 ,  H04N21/43637 ,  H04N21/6131

摘要： A device having an encoder and a packet switched video assembler which first estimates how many packets should be generated for one frame based on an estimated frame size and an initial fixed target packet size. Then, an updated packet size is recalculated on a packet-by-packet or slice-by-slice basis. The video assembler includes a three-stage process. The first stage estimates the frame size with or without encoding the video sequence, wherein in the case where the first stage includes encoding, the encoded data is packed in to a simulation bitstream. The second stage estimates the number of packets using the target packet size, estimated frame size and a configuration mode. The third stage dynamically updates the packet size using one-MB look-ahead approach with pre-encoding each MB. In an alternate embodiment, the third stage turns off the look ahead feature when encoding a current macroblock takes place during the third stage.

摘要翻译： 具有编码器和分组交换视频汇编器的设备，其基于估计的帧大小和初始固定目标分组大小来首先估计应该为一帧生成多少分组。 然后，逐个分组或逐个片段地重新计算更新的分组大小。 视频汇编器包括三级过程。 第一阶段使用或不对视频序列进行编码来估计帧大小，其中在第一级包括编码的情况下，编码数据被包装到模拟比特流中。 第二阶段使用目标分组大小，估计的帧大小和配置模式来估计分组的数量。 第三阶段使用一MB预览方式动态更新数据包大小，并对每个MB进行预编码。 在替代实施例中，当在第三阶段期间进行编码当前宏块时，第三阶段关闭前瞻特征。

公开(公告)号：US20070071030A1

公开(公告)日：2007-03-29

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： H04J3/22

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：US11181555B2

公开(公告)日：2021-11-23

申请号：US16391339

申请日：2019-04-23

申请人： Fu-Te Yuan ,  Yen-Chi Lee ,  Meng-Huang Lai

发明人： Fu-Te Yuan ,  Yen-Chi Lee ,  Meng-Huang Lai

IPC分类号： G01R15/18

摘要： A current sensing method and a current sensor are provided. The current sensing method includes the steps of: exciting a magnetic core to generate at least one pair of regions having opposite magnetization directions in the magnetic core; providing a current to pass through a sensing region of the magnetic core, so that the magnetic core correspondingly generates a magnetic field change; and sensing the magnetic field change of the magnetic core by a pickup coil wound around the magnetic core to output an output signal corresponding to the current.

公开(公告)号：US08724697B2

公开(公告)日：2014-05-13

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 ,  H04N11/02

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：US08660176B2

公开(公告)日：2014-02-25

申请号：US12239031

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 ,  H04N11/02

CPC分类号： H04N19/42 ,  H04N19/112 ,  H04N19/137 ,  H04N19/16 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61

摘要： An apparatus performs efficient coding techniques to more efficiently resolve geometric relationships between video data units and thereby determine neighboring video data units for a current video data unit. The apparatus comprises a geometric resolution unit that obtains video data defining a plurality of video data units, and determines, for the current one of the plurality of video data units to be processed, a partition width and a video unit number of the current video data unit. The geometric resolution unit accesses, using the determined partition width and video unit number, a plurality of look-up tables (LUTs) to output one or more indices identifying one or more of the plurality of video data units that neighbor the current video data unit.

摘要翻译： 一种装置执行有效的编码技术以更有效地解决视频数据单元之间的几何关系，从而确定当前视频数据单元的相邻视频数据单元。 该装置包括几何分辨单元，其获取定义多个视频数据单元的视频数据，并且对于要处理的多个视频数据单元中的当前一个视频数据单元，确定当前视频数据的分区宽度和视频单元数 单元。 几何分辨率单元使用确定的分区宽度和视频单元号来访问多个查找表（LUT），以输出识别与当前视频数据单元相邻的多个视频数据单元中的一个或多个的一个或多个索引 。

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。