Huffman decoding using cascaded sub-table lookup method
    1.
    发明授权
    Huffman decoding using cascaded sub-table lookup method 失效
    霍夫曼解码使用级联子表查找方法

    公开(公告)号:US06580377B1

    公开(公告)日:2003-06-17

    申请号:US09870176

    申请日:2001-05-30

    IPC分类号: H03M740

    CPC分类号: H03M7/425

    摘要: A bitstream is sampled at an interval predetermined as a function of available processing power and memory storage capacity. The sampled bits are evaluated against a first layer Huffman decoding subtable. The subtable obtains the address of a second layer subtable from an indexed location identified by the sampled bits. A second bit sample is parsed to the designated second layer subtable, which outputs either an address for a third layer subtable, or a symbol and an associated code length.

    摘要翻译: 以作为可用处理能力和存储器存储容量的函数的预定间隔对比特流进行采样。 针对第一层霍夫曼解码子进行评估。 该子表获取从由采样位识别的索引位置可隐藏的第二层的地址。 第二比特样本被解析为指定的第二层子表,其可输出用于第三层可替换的地址,或者输出符号和相关联的代码长度。

    Audio post processing in DVD, DTV and other audio visual products
    2.
    发明授权
    Audio post processing in DVD, DTV and other audio visual products 失效
    DVD,DTV等视听产品的音频后处理

    公开(公告)号:US07668317B2

    公开(公告)日:2010-02-23

    申请号:US09867736

    申请日:2001-05-30

    IPC分类号: H04H5/00

    摘要: The method and system of present invention sequences audio post-processing algorithms to simulate live or theater sound. An audio signal is selectively post-processed according to equipment availability and listener preferences. Downmixing or Prologic algorithms are applied to a signal arriving at sound system. A listener inputs their speaker configuration to a player console. Desired post-processing effects are likewise indicated to the console. For instance, if surround sound equipment is both available and selected, then surround portions of the audio signal are parsed to surround speakers. Bass management techniques then transfer low frequency channels of the signal to compatible speakers. VES or DCS algorithms further manipulate the surround portion of the signal to create an illusion of immersion, and a center channel equalizer balances the signal playback. Alternatively, the post-processed signal is transmitted to a headphone set.

    摘要翻译: 本发明的方法和系统对音频后处理算法进行排序以模拟现场或剧院声音。 音频信号根据设备可用性和听众偏好进行选择性后处理。 下混音或Prologic算法应用于到达声音系统的信号。 听众将其扬声器配置输入到播放器控制台。 所需的后处理效果也同样显示在控制台上。 例如,如果环绕声设备可用并且被选择,则音频信号的环绕部分被解析为环绕扬声器。 然后,低音管理技术将信号的低频信道传输到兼容的扬声器。 VES或DCS算法进一步操纵信号的环绕部分以产生浸没幻觉,并且中心通道均衡器平衡信号回放。 或者,后处理的信号被发送到耳机组。

    Memory sharing scheme in audio post-processing
    3.
    发明授权
    Memory sharing scheme in audio post-processing 失效
    音频后处理中的内存共享方案

    公开(公告)号:US06917915B2

    公开(公告)日:2005-07-12

    申请号:US09867735

    申请日:2001-05-30

    IPC分类号: H04R3/02 H04S1/00 G10L21/04

    CPC分类号: H04S3/008

    摘要: A method, apparatus and program product facilitates the sharing of memory resources between exclusive audio post-processes. A program identifies post-processing applications that execute at different instances and assigns to them a common memory block. An audio packet arrives at a digital signal processor (DSP). The DSP associates a frame of the packet with a post-process. The DSP buffers the frame to a memory block that corresponds to the post-process. Upon releasing the buffered frame, the DSP prepares the memory block for use with a second post-process and frame.

    摘要翻译: 一种方法,装置和程序产品有助于在专用音频后处理之间共享存储器资源。 程序识别在不同实例执行的后处理应用程序,并向它们分配一个公共内存块。 音频数据包到达数字信号处理器(DSP)。 DSP将数据包的帧与后处理相关联。 DSP将帧缓冲到对应于后处理的存储器块。 在释放缓冲帧时,DSP准备存储块以用于第二后处理和帧。

    System for fingerprint image reconstruction based on motion estimate across a narrow fingerprint sensor
    5.
    发明授权
    System for fingerprint image reconstruction based on motion estimate across a narrow fingerprint sensor 有权
    基于窄指纹传感器运动估计的指纹图像重建系统

    公开(公告)号:US07212658B2

    公开(公告)日:2007-05-01

    申请号:US10927599

    申请日:2004-08-25

    IPC分类号: G06K9/00

    CPC分类号: G06K9/00026

    摘要: In accordance with an embodiment of the present invention, an efficient and accurate system and method are described for detecting a fingerprint from swipe sensor system. A swipe sensor module is coupled to a microprocessor module. The swipe sensor module collects fingerprint image data as a plurality of frames and passes the frames of data to the microprocessor module. The microprocessor module assembles the frames of data into a complete image of the fingerprint that is cropped and processed to remove noise and artifacts. The cropped image is used to generate a template in a first instance and to compare an extracted portion of the cropped image to existing templates in a second instance.

    摘要翻译: 根据本发明的实施例,描述了一种用于检测来自滑动传感器系统的指纹的有效且准确的系统和方法。 滑动传感器模块耦合到微处理器模块。 滑动传感器模块将指纹图像数据收集成多个帧,并将数据帧传递到微处理器模块。 微处理器模块将数据帧组装成被裁剪和处理以去除噪声和伪影的指纹的完整图像。 裁剪后的图像用于在第一个实例中生成模板,并将裁剪的图像的提取部分与第二个实例中的现有模板进行比较。