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1. 发明授权

US06819715B2 Image decoding method, image decoding apparatus, and data storage medium 失效
标题翻译：图像解码方法，图像解码装置和数据存储介质
公开(公告)号：US06819715B2
公开(公告)日：2004-11-16
申请号：US09910906
申请日：2001-07-24
申请人： Takahiro Nishi , Shintarou Nakatani
发明人： Takahiro Nishi , Shintarou Nakatani
IPC分类号： H04N712
CPC分类号： H04N19/61 , H04N19/895
摘要： When coded image data which are obtained by coding image data by a coding method including an inter-frame predictive coding process are decoded, even when the decoding is started from an inter-frame predictive coded frame, the display of a decoded image having few disturbances is started, without the display being considerably delayed from the timing of input of coded image data. An image decoding apparatus 100a for decoding coded image data and displaying a decoded image on the basis of decoded image data comprises a frame memory 112a which holds decoded image data 107 of an already processed frame as reference data which are to be used for the decoding process for the inter-frame predictive coded frame, and initializes the storage area of the frame memory 112a at the initiation of the decoding process for the coded image data.
摘要翻译：当通过包括帧间预测编码处理的编码方法对图像数据进行编码而获得的编码图像数据被解码时，即使当从帧间预测编码帧开始解码时，显示具有较小干扰的解码图像开始，而不会从输入编码图像数据的定时显着延迟显示。用于解码编码图像数据并基于解码图像数据显示解码图像的图像解码装置100a包括：帧存储器112a，其将已处理帧的解码图像数据107保存为用于解码处理的参考数据对于帧间预测编码帧，并且在编码图像数据的解码处理开始时初始化帧存储器112a的存储区域。

2. 发明授权

US07020339B2 Image decoding apparatus and image decoding method for decoding image data including plural image sequences, and program storage medium 失效
标题翻译：用于对包括多个图像序列的图像数据进行解码的图像解码装置和图像解码方法以及程序存储介质
公开(公告)号：US07020339B2
公开(公告)日：2006-03-28
申请号：US09960324
申请日：2001-09-24
申请人： Takanori Ishida , Takahiro Nishi , Shintarou Nakatani
发明人： Takanori Ishida , Takahiro Nishi , Shintarou Nakatani
IPC分类号： G06F13/00
CPC分类号： H04N19/423 , H04N19/61
摘要： An image decoding apparatus includes a decoder having a decoding data storage register for holding decoding data corresponding to a target VOP to be decoded, and decoding a video stream corresponding to the target VOP on the basis of the decoding data stored in the register. The image decoding apparatus also includes a first memory having plural storage regions for holding decoding data corresponding to plural objects. The decoding data are transferred between the decoding data storage register in the decoder and a specific storage region in the first memory. Therefore, it is possible to perform decoding on a video stream including plural objects by using a single decoder. Further, even when the number of objects to be decoded is increased, storage regions for decoding data corresponding to the increased objects can easily be increased.
摘要翻译：图像解码装置包括：解码器，具有解码数据存储寄存器，用于保存与要解码的目标VOP相对应的解码数据，并且根据存储在寄存器中的解码数据对与目标VOP相对应的视频流进行解码。图像解码装置还包括具有用于保持与多个对象对应的解码数据的多个存储区域的第一存储器。解码数据在解码器中的解码数据存储寄存器和第一存储器中的特定存储区域之间传送。因此，可以通过使用单个解码器对包括多个对象的视频流进行解码。此外，即使当要解码的对象的数量增加时，可以容易地增加用于对应于增加的对象的解码数据的存储区域。

3. 发明申请

US20050100099A1 Image decoding method, image decoding apparatus, and data storage medium 审中-公开
标题翻译：图像解码方法，图像解码装置和数据存储介质
公开(公告)号：US20050100099A1
公开(公告)日：2005-05-12
申请号：US10975544
申请日：2004-10-29
申请人： Takahiro Nishi , Shintarou Nakatani
发明人： Takahiro Nishi , Shintarou Nakatani
IPC分类号： H04N19/895 , G06T9/00 , H04N7/12
CPC分类号： H04N19/61 , H04N19/895
摘要： When coded image data which are obtained by coding image data by a coding method including an inter-frame predictive coding process are decoded, even when the decoding is started from an inter-frame predictive coded frame, the display of a decoded image having few disturbances is started, without the display being considerably delayed from the timing of input of coded image data. An image decoding apparatus 100a for decoding coded image data and displaying a decoded image on the basis of decoded image data comprises a frame memory 112a which holds decoded image data 107 of an already processed frame as reference data which are to be used for the decoding process for the inter-frame predictive coded frame, and initializes the storage area of the frame memory 112a at the initiation of the decoding process for the coded image data.
摘要翻译：当通过包括帧间预测编码处理的编码方法对图像数据进行编码而获得的编码图像数据被解码时，即使当从帧间预测编码帧开始解码时，显示具有较小干扰的解码图像开始，而不会从输入编码图像数据的定时显着延迟显示。用于解码编码图像数据并基于解码图像数据显示解码图像的图像解码装置100a包括：帧存储器112，其将已经处理的帧的解码图像数据107保存为用于对帧间预测编码帧进行解码处理，并且在编码图像数据的解码处理开始时初始化帧存储器112a的存储区域。

4. 发明授权

US5625355A Apparatus and method for decoding variable-length code 失效
标题翻译：用于解码可变长度码的装置和方法
公开(公告)号：US5625355A
公开(公告)日：1997-04-29
申请号：US379900
申请日：1995-01-27
申请人： Hiroshi Takeno , Eiji Miyagoshi , Hiroshi Imanishi , Shintarou Nakatani , Toshihide Akiyama
发明人： Hiroshi Takeno , Eiji Miyagoshi , Hiroshi Imanishi , Shintarou Nakatani , Toshihide Akiyama
IPC分类号： H03M7/42 , H03M7/40
CPC分类号： H03M7/425
摘要： A variable-length-code decoder of this invention decodes an input bit stream including an input bit string having a codeword of a fixed-length code and a plurality of codewords of variable-length codes combined in a predetermined format. The decoder includes: a shifter for shifting the input bit string by a desired number of bits; a pattern detector for detecting a specific pattern in the bit string, and outputting a detection signal; two code tables provided for the respective variable-length codes, each code table having the length of each codeword (codeword length) and the decoded-word corresponding to the codeword, and outputting a codeword length and a decoded-word of a corresponding codeword based on the bit string output from the shifter; a processor for storing the format of the input bit string, outputting the length of the fixed-length code and decoded data of the fixed-length code, and selecting, for each of the variable-length codewords, one of the code tables to which the variable-length codeword belongs, based on the detection signal and the format; a codelength selector for selecting the codeword length or the fixed-length code, and for setting the shift amount for the input bit string in the shifter; and an output circuit for selectively outputting the decoded-word or the decoded data.
摘要翻译：本发明的可变长度码解码器对输入比特流解码，该输入比特流包括具有固定长度码的码字的输入比特串和以预定格式组合的可变长度码的多个码字。解码器包括：移位器，用于将输入位串移位所需位数; 用于检测比特串中的特定模式的模式检测器，并输出检测信号; 为每个可变长度码提供两个码表，每个码表具有每个码字的长度（码字长度）和与码字对应的解码字，并输出码字长度和相应码字的解码字来自移位器的位串输出; 用于存储输入位串的格式的处理器，输出固定长度代码的长度和固定长度代码的解码数据，并且对于每个可变长度代码字，选择一个代码表，可变长度码字基于检测信号和格式属于; 用于选择码字长度或固定长度码的码长选择器，以及用于设置移位器中输入比特串的移位量; 以及用于选择性地输出解码字或解码数据的输出电路。

5. 发明授权

US6018376A Synchronous reproduction apparatus 失效
标题翻译：同步再生装置
公开(公告)号：US6018376A
公开(公告)日：2000-01-25
申请号：US912196
申请日：1997-08-18
申请人： Shintarou Nakatani
发明人： Shintarou Nakatani
IPC分类号： H04N5/073 , H04N5/04 , H04N7/08 , H04N7/081 , H04N7/173 , H04N7/18 , H04N19/00 , H04N19/102 , H04N19/134 , H04N19/172 , H04N19/196 , H04N19/44 , H04N19/70 , H04N21/435 , H04N21/44
CPC分类号： H04N21/4341 , H04N21/4307
摘要： A synchronous reproduction apparatus for synchronously reproducing a video signal and an audio signal, receives a multiplexed bit stream in which the following data are packeted: video encoded data obtained by encoding video frames, each frame being a fundamental unit of reproduction of a video signal; video presentation time data showing a time to output a reproduced video signal of each video frame; audio encoded data obtained by encoding audio frames, each frame being a fundamental unit of reproduction of an audio signal; audio presentation time data showing a time to output a reproduced audio signal of each audio frame; and system time data.
摘要翻译：一种用于同步再现视频信号和音频信号的同步再现装置，接收其中分组以下数据的多路复用比特流：通过对视频帧进行编码而获得的视频编码数据，每帧是视频信号的重放的基本单位; 显示用于输出每个视频帧的再现视频信号的时间的视频呈现时间数据; 通过编码音频帧获得的音频编码数据，每个帧是音频信号的再现的基本单位; 显示输出每个音频帧的再现音频信号的时间的音频呈现时间数据; 和系统时间数据。

6. 发明授权

US06782368B2 Media processing apparatus that operates at high efficiency 有权
标题翻译：高效运行的媒体处理装置
公开(公告)号：US06782368B2
公开(公告)日：2004-08-24
申请号：US10217172
申请日：2002-08-12
申请人： Shigeki Fujii , Shintarou Nakatani
发明人： Shigeki Fujii , Shintarou Nakatani
IPC分类号： G10L1900
CPC分类号： H04N19/42 , H04N19/423 , H04N19/44
摘要： A media processing apparatus includes an input/output processing unit that performs input/output processing that is asynchronously caused by external factors and a decode processing unit that operates in parallel with the input/output processing unit and mainly performs decode processing for a data stream stored in a memory. The input/output processing receives an asynchronous input of a data stream from outside, stores the data stream into the memory, and supplies a data stream stored in the memory to the decode processing unit. The decode processing unit includes a sequential processing unit and a routine processing unit. The sequential processing unit performs header analysis for compressed video data in the data stream and a complete decode for compressed audio data in the data stream. Based on the results of the header analysis, the routine processing unit performs all of the decoding of the compressed video data aside from the header analysis. In the sequential processing unit, the header analysis is given priority over the decoding of the compressed audio data.
摘要翻译：媒体处理装置包括执行由外部因素异步引起的输入/输出处理的输入/输出处理单元和与输入/输出处理单元并行操作的解码处理单元，并且主要对存储的数据流进行解码处理在记忆中输入/输出处理从外部接收数据流的异步输入，将数据流存储到存储器中，并将存储在存储器中的数据流提供给解码处理单元。解码处理单元包括顺序处理单元和例程处理单元。顺序处理单元对数据流中的压缩视频数据执行报头分析，并对数据流中的压缩音频数据进行完整解码。基于标题分析的结果，除了标题分析之外，例程处理单元执行压缩视频数据的所有解码。在顺序处理单元中，标题分析优先于压缩音频数据的解码。

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