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1. 发明授权

US5774206A Process for controlling an MPEG decoder 失效
标题翻译：用于控制MPEG解码器的过程
公开(公告)号：US5774206A
公开(公告)日：1998-06-30
申请号：US769575
申请日：1996-12-19
申请人： Steve C. Wasserman , James Armand Baldwin , George Mitsuoka
发明人： Steve C. Wasserman , James Armand Baldwin , George Mitsuoka
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50 , H04N7/30
CPC分类号： H04N19/90 , H04N19/42 , H04N19/433 , H04N19/61
摘要： A process for decoding MPEG encoded image data stored in a system memory utilizing a configurable image decoding apparatus. The process comprises the steps of: (a) extracting macroblock information from said MPEG encoded image data, the macroblocks containing image data and motion compensation data; (b) extracting a series of parameters from the MPEG encoded image data for decoding the MPEG encoded data; (c) determining quantization factors from the encoded image data; (d) configuring the configurable image decoding apparatus, including (i) configuring a means for parsing the macroblock data into motion vectors and image data with the series of parameters with the parameters for decoding the encoded data; (ii) configuring a means for performing inverse quantization with the quantization co-efficients; (e) determining a decoding order of the extracted macroblock information to be decoded; (f) providing said extracted macroblock information to the parsing means in the decoding order; (g) combining decoded image data with motion vectors extracted by the parsing means; and (h) storing the combined data in the system memory.
摘要翻译：一种使用可配置图像解码装置解码存储在系统存储器中的MPEG编码图像数据的处理。该过程包括以下步骤：（a）从所述MPEG编码图像数据中提取宏块信息，所述宏块包含图像数据和运动补偿数据; （b）从MPEG编码图像数据中提取一系列参数以解码MPEG编码数据; （c）从编码图像数据确定量化因子; （d）配置可配置图像解码装置，包括（i）配置用于使用具有用于解码编码数据的参数的一系列参数将宏块数据解析为运动矢量和图像数据的装置; （ii）配置用于用量化系数执行逆量化的装置; （e）确定所提取的要解码的宏块信息的解码顺序; （f）以解码顺序向所述解析装置提供所述提取的宏块信息; （g）将解码图像数据与由解析装置提取的运动矢量相组合; 和（h）将组合的数据存储在系统存储器中。

2. 发明授权

US5812791A Multiple sequence MPEG decoder 失效
标题翻译：多序列MPEG解码器
公开(公告)号：US5812791A
公开(公告)日：1998-09-22
申请号：US769346
申请日：1996-12-19
申请人： Steve C. Wasserman , James Armand Baldwin , George Mitsuoka
发明人： Steve C. Wasserman , James Armand Baldwin , George Mitsuoka
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50 , H04N1/41
CPC分类号： H04N19/90 , H04N19/42 , H04N19/43 , H04N19/433 , H04N19/61
摘要： An MPEG decoding system in a host system, including software instructions for decoding a first portion of MPEG encoded data, including instructions for extracting macroblock data from said MPEG encoded data and for establishing a decoding order for said macroblock data. The system further includes hardware for extracting motion vector data and display data from said macroblocks. An entropy decoder for decoding encoded AC coefficients and DC coefficients in said display data is provided. An inverse quantization unit inversely quantizing said coefficients into a resulting array of decoded AC coefficients is also provided. An de-zig-zag unit scans said array of decoded AC coefficients and DC coefficients in a zig-zag pattern to provide a block of discrete cosine transformed coefficients. A inverse discrete cosine transform unit takes the inverse discrete cosine transform of the block of discrete cosine transformed coefficients to provide a first set of pel data. A motion vector processor decodes the motion vector data to provide a second set of pel data, and a motion compensation unit adds the first and second sets of pel data.
摘要翻译：主机系统中的MPEG解码系统，包括用于对MPEG编码数据的第一部分进行解码的软件指令，包括用于从所述MPEG编码数据中提取宏块数据以及建立所述宏块数据的解码顺序的指令。该系统还包括用于提取运动矢量数据和显示来自所述宏块的数据的硬件。提供了一种用于对所述显示数据中的经编码的AC系数和DC系数进行解码的熵解码器。还提供了将所述系数逆量化为经解码的AC系数的结果阵列的逆量化单元。解字形单元以锯齿形图案扫描解码的AC系数和DC系数的阵列，以提供离散余弦变换系数的块。逆离散余弦变换单元采用离散余弦变换系数块的逆离散余弦变换来提供第一组像素数据。运动矢量处理器解码运动矢量数据以提供第二组像素数据，并且运动补偿单元将第一和第二组像素数据相加。

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