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    • 4. 发明授权
    • Compressing image data
    • 压缩图像数据
    • US08768082B2
    • 2014-07-01
    • US13166423
    • 2011-06-22
    • Dake HeXiang YuJing Wang
    • Dake HeXiang YuJing Wang
    • G06K9/36
    • H04N19/126H04N19/105H04N19/176H04N19/30H04N19/463H04N19/593H04N19/91
    • Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
    • 描述用于编码和解码图像的方法,系统和计算机程序。 在一些方面,访问输入数据块和预测数据块。 基于将输入数据块投影到预测数据块上而生成投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 基于输入数据块和缩放预测数据块之间的差异生成残留数据块。 在一些方面,访问与残留数据块相关联的预测数据块,残差数据块和投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 通过对残差数据块和缩放预测数据块求和来生成输出数据块。
    • 5. 发明授权
    • Methods and devices for data compression using adaptive reconstruction levels
    • 使用自适应重建级别的数据压缩的方法和设备
    • US08582639B2
    • 2013-11-12
    • US12830548
    • 2010-07-06
    • Dake HeXiang YuEn-Hui Yang
    • Dake HeXiang YuEn-Hui Yang
    • H04N7/50H04B1/66
    • H04N19/192H04N19/126H04N19/147H04N19/172H04N19/174H04N19/176H04N19/19
    • Encoding and decoding methods that perform quantization using adaptive reconstruction levels are presented. The reconstruction levels for a given partitioning of the data space may be selected based upon the distribution of data points within each sub-part defined by the partitioning. In some cases, the adaptive reconstruction levels may be based upon an average of the data points within each sub-part. In some cases, the adaptive reconstruction levels may be selected using a rate-distortion analysis including the quantization distortion associated with the levels versus the data points and the rate associated with transmitting the encoded adaptive reconstruction levels. The methods relate to data compression in a range of applications including audio, images and video.
    • 提出了使用自适应重建级别执行量化的编码和解码方法。 可以基于由分区定义的每个子部分内的数据点的分布来选择数据空间的给定划分的重建级别。 在一些情况下,自适应重建级别可以基于每个子部分内的数据点的平均值。 在一些情况下,可以使用速率 - 失真分析来选择自适应重建级别,所述速率 - 失真分析包括与所述级别相对于所述数据点相关联的量化失真和与传送所述编码的自适应重建级别相关联的速率 该方法涉及包括音频,图像和视频在内的一系列应用中的数据压缩。
    • 10. 发明申请
    • SYSTEMS AND METHODS FOR PLAYING RECORDED ANNOUNCEMENTS
    • 播放记录通知的系统和方法
    • US20120213340A1
    • 2012-08-23
    • US13030064
    • 2011-02-17
    • Shiping LiJohn A. PerreaultXiang Yu
    • Shiping LiJohn A. PerreaultXiang Yu
    • H04M1/64
    • H04M7/0072H04M7/129
    • The invention features a computer-implemented method for playing back an announcement message to a user device. The method includes initiating, by a computing device, an announcement session in response to a user device establishing communication with the computing device and determining, by the computing device, the announcement message to be played back to the user device. The method includes loading, by the computing device, into a queue associated with the announcement session, a descriptor referencing a memory buffer on the computing device. The memory buffer includes a plurality of memory partitions, each memory partition storing at least one portion of the announcement message encoded at a different rate. The method includes the computing device scheduling play back of the announcement message, playing the announcement message to the user device at a first rate and receiving a request from the user device for playback at a second rate.
    • 本发明的特征在于一种用于向用户设备回放通知消息的计算机实现的方法。 该方法包括响应于用户设备与计算设备建立通信并由计算设备确定要播放给用户设备的通告消息,由计算设备启动通告会话。 该方法包括由计算设备加载到与通告会话相关联的队列中,描述符引用计算设备上的存储器缓冲器。 存储器缓冲器包括多个存储器分区,每个存储分区存储以不同速率编码的通告消息的至少一部分。 该方法包括计算设备调度播放通知消息,以第一速率向用户设备播放通知消息,并接收来自用户设备的用于以第二速率回放的请求。