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1. 发明授权

US07827458B1 Packet loss error recovery 有权
标题翻译：丢包错误恢复
公开(公告)号：US07827458B1
公开(公告)日：2010-11-02
申请号：US10379012
申请日：2003-03-03
申请人： Ryan R. Salsbury , James Oliver Normile , Hyeonkuk Jeong , Joe S. Abuan , Barin G. Haskell
发明人： Ryan R. Salsbury , James Oliver Normile , Hyeonkuk Jeong , Joe S. Abuan , Barin G. Haskell
IPC分类号： H04L1/18
CPC分类号： H04L1/1838
摘要： A method, apparatus, system, and signal-bearing medium that in an embodiment detect that a first packet is not received, add a place holder for the first packet in a buffer, request retransmission of the first packet, and create an estimated packet based on a combination of a second packet previous to the first packet, a third packet following the first packet, and a fourth packet from a previous frame that is spatially corresponding to the first packet. In another embodiment, a method, apparatus, system, and signal-bearing medium are provided that send a encoded packet to a receiver, save the encoded packet in a bitstream, determine whether the encoded packet is lost, and when the encoded packet is lost, decode the bitstream with the lost packet omitted and insert a reconstructed frame associated with the lost packet into a reference frame storage. In another embodiment, when the encoded packet is lost, a decoder is run on a reference frame chosen as the last uncorrupted frame. In another embodiment, when the encoded packet is lost, the decoder is run on a frame chosen from a set of previously stored reference frames.
摘要翻译：一种方法，装置，系统和信号承载介质，其在一个实施例中检测到未接收到第一分组，在缓冲器中添加第一分组的占位符，请求重新发送第一分组，并创建基于估计的分组在第一分组之前的第二分组的组合，第一分组之后的第三分组以及在空间上对应于第一分组的来自前一帧的第四分组。在另一个实施例中，提供了一种方法，装置，系统和信号承载介质，其将经编码的分组发送到接收机，将经编码的分组存储在比特流中，确定编码分组是否丢失，以及编码分组丢失时，丢失丢失的分组解码比特流，并将与丢失分组相关联的重构帧插入到参考帧存储器中。在另一个实施例中，当编码分组丢失时，解码器在被选择为最后未被破坏的帧的参考帧上运行。在另一个实施例中，当编码分组丢失时，解码器在从一组先前存储的参考帧中选择的帧上运行。

2. 发明授权

US5778100A Method and apparatus for reducing the bit rate in a video object planes sequence coder 失效
标题翻译：用于降低视频对象平面序列编码器中的比特率的方法和装置
公开(公告)号：US5778100A
公开(公告)日：1998-07-07
申请号：US613963
申请日：1996-03-08
申请人： Homer H. Chen , Barin G. Haskell , Joern Ostermann
发明人： Homer H. Chen , Barin G. Haskell , Joern Ostermann
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50 , G06K9/36 , H04N5/14 , H04N7/12
CPC分类号： H04N19/61 , H04N19/20
摘要： A method and apparatus for reducing the output bit rate in a video object planes sequence encoder. An approximation of the shape of an object on a current frame is generated and used, along with a predicted image of the object from a subsequent frame and an estimate of the displacement of the object, to predict an image of the object in a current frame. A stripe is formed around the predicted image and the picture elements contained in the stripe are assigned texture values. The predicted image and stripe are subtracted from the current frame to form an error signal which is masked by the approximate shape of the object and provided to an entropy coder for transmission at an output bit rate.
摘要翻译：一种用于降低视频对象平面序列编码器中的输出比特率的方法和装置。生成并使用当前帧上的对象的形状的近似以及来自后续帧的对象的预测图像和对象的位移的估计，以预测当前帧中的对象的图像。在预测图像周围形成条纹，并且包含在条带中的图像元素被分配纹理值。从当前帧中减去预测图像和条带，以形成由对象的近似形状掩蔽的误差信号，并将其提供给用于以输出比特率传输的熵编码器。

3. 发明授权

US5623312A Compressed-domain bit rate reduction system 失效
标题翻译：压缩域比特率降低系统
公开(公告)号：US5623312A
公开(公告)日：1997-04-22
申请号：US361929
申请日：1994-12-22
申请人： Li Yan , Barin G. Haskell
发明人： Li Yan , Barin G. Haskell
IPC分类号： G06T9/00 , H04N5/14 , H04N7/15 , H04N7/52 , H04N19/50 , H04N21/2343 , H04N21/2368 , H04N21/2662 , H04N21/434 , H04N21/61 , H04N7/18
CPC分类号： H04N7/15 , H04N19/40 , H04N19/42 , H04N19/51 , H04N19/61 , H04N21/234354 , H04N21/2368 , H04N21/2662 , H04N5/145 , H04N21/6137
摘要： Improved bit rate reduction techniques are disclosed. When incorporated into an existing video processing system having a DCT coefficients processor, the motion vector processor disclosed herein provides enhanced computational and memory storage efficiencies over prior art designs. The motion vector processor includes a microprocessor and associated motion vector memory. The motion vector memory is adapted to store a plurality of motion vectors corresponding to at least one image frame containing a plurality of macro blocks. Each motion vector is represented by an X value and a Y value, the X value and the Y value signifying image changes within a given macro block from a given frame to the immediately preceding frame.
摘要翻译：公开了改进的比特率降低技术。当结合到具有DCT系数处理器的现有视频处理系统中时，本文公开的运动矢量处理器提供了超过现有技术设计的增强的计算和存储器存储效率。运动矢量处理器包括微处理器和相关的运动矢量存储器。运动矢量存储器适于存储对应于包含多个宏块的至少一个图像帧的多个运动矢量。每个运动矢量由X值和Y值表示，X值和Y值表示图像在给定的宏块内从给定的帧到前一帧改变。

4. 发明授权

US5604502A Motion video compression system with inverse discrete cosine transform mismatch control 失效
标题翻译：具有反离散余弦变换失配控制的运动视频压缩系统
公开(公告)号：US5604502A
公开(公告)日：1997-02-18
申请号：US215334
申请日：1994-03-21
申请人： Barin G. Haskell , Li Yan
发明人： Barin G. Haskell , Li Yan
IPC分类号： G06F17/14 , G06T9/00 , H03M7/30 , H04N1/41 , H04N7/26 , H04N7/30 , H04N7/50 , H03M1/00
CPC分类号： H04N19/45 , H04N19/122 , H04N19/126 , H04N19/60 , H04N19/61
摘要： A novel method and apparatus is disclosed for controlling inverse discrete cosine transform ("IDCT") mismatch between an encoder and decoder using different IDCT implementations under all coding conditions. Sychronization between the encoder and decoder is forced by selectively setting certain small DCT coefficients, which are prone to mismatch, to zero at the encoder. Advantageously, the invention may be implemented solely in the encoder to minimize system complexity and cost, and allow for IDCT mismatch control utilizing conventional decoders.
摘要翻译：公开了一种新颖的方法和装置，用于在所有编码条件下使用不同的IDCT实现来控制编码器和解码器之间的反离散余弦变换（“IDCT”）失配。通过在编码器处选择性地将某些容易产生不匹配的小DCT系数设置为零来强制编码器和解码器之间的同步。有利地，本发明可以仅在编码器中实现以最小化系统复杂性和成本，并且允许利用常规解码器进行IDCT失配控制。

5. 发明授权

US5001561A Embedded coding system for video signals 失效
标题翻译：视频信号嵌入式编码系统
公开(公告)号：US5001561A
公开(公告)日：1991-03-19
申请号：US517991
申请日：1990-05-02
申请人： Barin G. Haskell , Amy R. Reibman
发明人： Barin G. Haskell , Amy R. Reibman
IPC分类号： H04N5/92 , H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/60 , H04N19/30 , H04N19/619
摘要： A video processing system is disclosed that separates and separately encodes and decodes the low and high spatial frequency coefficients of images for transmission or storage. Each block of an image is transformed into the frequency domain. High frequency coefficients of the resulting transform matrix are separated from the low frequency coefficients. The low frequency coefficients are motion prediction compensated to derive motion vectors and a prediction error signal. The motion vectors, prediction error signal and high frequency coefficients are channel encoded for storage or transmission. In a receiver, the motion vectors and prediction error signal are used to reconstruct a low frequency motion-compensated version of the image. The high frequency coefficients are inverse transformed into the pel domain and are combined with the reconstructed low frequency verison of the image to reconstruct a version of the original image.

6. 发明授权

US4589018A Technique for the time frequency multiplexing on three television signals 失效
标题翻译：三频电视信号时频复用技术
公开(公告)号：US4589018A
公开(公告)日：1986-05-13
申请号：US500957
申请日：1983-06-03
申请人： Barin G. Haskell , Robert L. Schmidt
发明人： Barin G. Haskell , Robert L. Schmidt
IPC分类号： H04N11/00 , H04J4/00 , H04N7/00 , H04N7/08 , H04N7/081 , H04N7/32 , H04N7/36 , H04N11/06 , H04N11/24 , H04N19/50 , H04N21/236 , H04N21/2365 , H04N21/434
CPC分类号： H04N21/4347 , H04N11/06 , H04N19/503 , H04N21/236 , H04N21/2365 , H04N21/434 , H04N7/081
摘要： The present invention relates to a technique for the Time-Frequency-Multiplexing (TFM) of three television signals. More particularly, three fields of a TV signal are sent simultaneously to a remote receiver by transmitting one field as is in the baseband of a standard television system signal while the other two fields are transmitted as differential signals, quadrature amplitude modulated onto a subcarrier frequency above baseband. The two differential signals can comprise two field differential signals or a frame and a field differential signal. Arrangements are also provided for transmitters and receivers for implementing the present technique.
摘要翻译：本发明涉及三个电视信号的时频复用（TFM）技术。更具体地，电视信号的三个场同时发送到远程接收机，通过在标准电视系统信号的基带中发送一个场，而另外两个场作为差分信号发送，正交幅度调制到上面的子载波频率上基带。两个差分信号可以包括两个场差分信号或帧和场差分信号。还提供了用于实施本技术的发射机和接收机的安排。

7. 发明授权

US4302838A Apparatus for synchronizing an input signal with a time multiplexed signal 失效
标题翻译：用于使输入信号与时间复用信号同步的装置
公开(公告)号：US4302838A
公开(公告)日：1981-11-24
申请号：US126401
申请日：1980-03-03
申请人： Kai Y. Eng , Barin G. Haskell
发明人： Kai Y. Eng , Barin G. Haskell
IPC分类号： H04J3/18 , H04J3/06
CPC分类号： H04J3/18
摘要： Bandwidth is a precious resource in a communication system. High frequency signals, for example, video signals, typically require a relatively large bandwidth. One means for reducing bandwidth is by way of time compression multiplexing wherein signals may be stored a short period of time, compressed in time and then transmitted over a communication path. The subject signal processor may time compress and time synchronize an input signal with a time multiplexed signal. In a first arrangement, responsive to a time delay difference between the signals (215), a first frequency signal (220) is used to modulate (230) the input signal (210). The modulated signal is extended through a dispersive filter (260) for introducing a delay to the input signal, the delay for synchronizing same with the time multiplexed signal. The synchronized output of the dispersive filter may be extracted by an envelope detector (270) for extension to an output terminal (280). In a second arrangement, the input signal may be modulated by a variable chirp signal (220). The modulated (230) input signal is then extended through a dispersive filter (260) and an envelope detector (270) for jointly time compressing and time synchronizing the input signal with the time multiplexed signal.
摘要翻译：带宽是通信系统中的宝贵资源。高频信号，例如视频信号通常需要较大的带宽。用于减小带宽的一种手段是通过时间压缩复用的方式，其中信号可以在短时间段内被存储，在时间上被压缩，然后在通信路径上传输。主体信号处理器可以时间压缩和时间同步输入信号与时间复用信号。在第一布置中，响应信号（215）之间的时间延迟差，使用第一频率信号（220）来调制（230）输入信号（210）。调制信号通过色散滤波器（260）延伸，用于向输入信号引入延迟，延迟与时间复用信号同步。分散滤波器的同步输出可以由包络检测器（270）提取，用于扩展到输出端子（280）。在第二布置中，输入信号可以由可变线性调频信号（220）调制。调制（230）输入信号然后通过色散滤波器（260）和包络检测器（270）进行扩展，用于对输入信号与时间复用信号进行联合时间压缩和时间同步。

8. 发明授权

US08625671B2 Look-ahead system and method for pan and zoom detection in video sequences 有权
公开(公告)号：US08625671B2
公开(公告)日：2014-01-07
申请号：US12685464
申请日：2010-01-11
申请人： Adriana Dumitras , Barin G. Haskell
发明人： Adriana Dumitras , Barin G. Haskell
IPC分类号： H04N9/64
CPC分类号： H04N5/147 , H04N5/144 , H04N5/145 , H04N19/102 , H04N19/137 , H04N19/139 , H04N19/142 , H04N19/182 , H04N19/527 , H04N19/543 , H04N19/61
摘要： A look-ahead system and method for pan and zoom detection in video sequences is disclosed. The system and method use motion vectors in a reference coordinate system to identify pans and zooms in video sequences. The identification of pans and zooms enables parameter switching for improved encoding in various video standards (e.g., H.264) and improved video retrieval of documentary movies and other video sequences in video databases or other storage devices.

9. 发明授权

US5565924A Encoder/decoder buffer control for variable bit-rate channel 失效
标题翻译：用于可变比特率信道的编码器/解码器缓冲器控制
公开(公告)号：US5565924A
公开(公告)日：1996-10-15
申请号：US588493
申请日：1996-01-18
申请人： Barin G. Haskell , Amy R. Reibman
发明人： Barin G. Haskell , Amy R. Reibman
IPC分类号： H04J3/06 , H04J3/16 , H04N7/24 , H04N7/52 , H04N19/00 , H04N21/234 , H04N21/2343 , H04N21/24 , H04N21/242 , H04N21/43 , H04N21/44 , H04N21/6373 , H04N21/643
CPC分类号： H04N21/234354 , H04J3/0626 , H04J3/0632 , H04J3/1688 , H04N21/23406 , H04N21/2402 , H04N21/242 , H04N21/4305 , H04N21/44004 , H04N21/6373 , H04N21/64307
摘要： Encoder/decoder buffer overflow and underflow encountered when employing actually variable or effectively variable bit-rate channels for communicating encoded video images and corresponding audio signals are overcome by adjusting the parameters of a video encoder in response to a representation of cell delay variation, i.e., jitter, determined at a remote decoder.
摘要翻译：当采用用于通信编码视频图像和相应音频信号的实际可变或有效可变比特率信道时遇到的编码器/解码器缓冲器溢出和下溢通过响应于信元延迟变化的表示来调整视频编码器的参数来克服，抖动，在远程解码器确定。

10. 发明授权

US5422963A Block transform coder for arbitrarily shaped image segments 失效
标题翻译：用于任意形状图像段的块变换编码器
公开(公告)号：US5422963A
公开(公告)日：1995-06-06
申请号：US138295
申请日：1993-10-15
申请人： Homer H. Chen , Mehmet R. Civanlar , Barin G. Haskell
发明人： Homer H. Chen , Mehmet R. Civanlar , Barin G. Haskell
IPC分类号： H04N1/41 , H04N7/26 , H04N7/30 , G06K9/00
CPC分类号： H04N19/48 , H04N19/115 , H04N19/154 , H04N19/17 , H04N19/192 , H04N19/20
摘要： A Transform Coder Unit (TCU) to transform an arbitrarily shaped image into optimal transform coefficients (OTC) for data transmission. The TCU comprises a forward transform which transforms the image to transform coefficients, and a TCS generator which generates a transform coefficient set (TCS) from the transform coefficients. The TCU also contains an inverse transform which transforms the TCS to a computed region block having computed pel values. Finally, the TCU comprises a replacer which replaces those computed pel values corresponding to the interior pel set with the original pel values to form a modified computed region block which is re-iterated until optimal transform coefficients are determined. The present invention is also directed at a process for determining optimal transform coefficients using the aforementioned device.
摘要翻译：变换编码器单元（TCU），用于将任意形状的图像转换成用于数据传输的最佳变换系数（OTC）。 TCU包括将图像变换为变换系数的正向变换，以及从变换系数生成变换系数集（TCS）的TCS生成器。 TCU还包含逆变换，其将TCS变换为具有计算的像素值的计算区域块。最后，TCU包括替换器，其替换与原始像素值对应的内部像元集合的那些计算的像素值，以形成经过重新迭代的经修改的计算区域块，直到确定最佳变换系数。本发明还涉及使用上述装置确定最佳变换系数的方法。

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