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    • 6. 发明授权
    • Image processor and image processing method
    • 图像处理器和图像处理方法
    • US06987811B2
    • 2006-01-17
    • US10048360
    • 2001-05-31
    • Takaharu TanakaHideshi NishidaKosuke YoshiokaTokuzo Kiyohara
    • Takaharu TanakaHideshi NishidaKosuke YoshiokaTokuzo Kiyohara
    • H04N7/12
    • H03M7/40H04N19/129H04N19/132H04N19/18H04N19/42H04N19/60
    • The speed of decoding processing for variable-length coded image data is improved. The image processor includes a variable-length decoding unit for variable-length decoding input data and outputting a pair of the run length of zero coefficients and a non-zero coefficient; an inverse quantization unit for subjecting the non-zero coefficient to inverse quantization and obtaining inverse quantized data to be output; an address setting unit for carrying out inverse scanning, obtaining an address for storing the inverse quantized data on the basis of the run length of zero coefficients and specifying the address in the data storage unit; a write information storage unit for setting a write flag in an address thereof corresponding to the specified address; and a data reading unit for reading data from the data storage unit, and on the basis of information stored in the write information storage unit, directly outputting data from the address specified by the address setting unit while substituting a predetermined value for data from an address other than the specified address to output the substituted value.
    • 提高了可变长度编码图像数据的解码处理速度。 图像处理器包括:可变长度解码单元,用于对输入数据进行可变长度解码并输出一对零系数的游程长度和非零系数; 逆量化单元,用于对非零系数进行逆量化,并获得要被输出的反量化数据; 地址设定单元,用于执行反向扫描,基于零系数的游程长度获得用于存储逆量化数据的地址,并指定数据存储单元中的地址; 写入信息存储单元,用于在对应于指定地址的地址中设置写入标志; 以及数据读取单元,用于从数据存储单元读取数据,并且基于存储在写入信息存储单元中的信息,直接从地址设置单元指定的地址输出数据,同时从地址替换预定值的数据 除了指定的地址以输出替代值。
    • 7. 发明授权
    • Media processing apparatus which operates at high efficiency
    • 以高效率运行的媒体处理装置
    • US06310921B1
    • 2001-10-30
    • US09055583
    • 1998-04-06
    • Kosuke YoshiokaMakoto HiraiTokuzo KiyoharaKozo Kimura
    • Kosuke YoshiokaMakoto HiraiTokuzo KiyoharaKozo Kimura
    • H04N712
    • H04N19/90H04N5/4401H04N21/426H04N21/42607H04N21/42653H04N21/42692H04N21/4302H04N21/4341
    • A media processing apparatus is made up of an I/O processing unit for performing input/output processing which asynchronously occurs due to an external factor and a decode processing unit for performing decode processing mainly for decoding of data streams stored in a memory in parallel with the input/output processing. The input/output processing includes receiving the data streams which are asynchronously inputted, storing the inputted data streams in the memory, and supplying the data streams from the memory to the decode processing unit. The decode processing unit is made up of a sequential processing unit mainly performing condition judgements on the data streams and a routine processing unit performing decode processing on compressed video data aside from header analysis of the compressed video data in parallel with the sequential processing. Accordingly, the input/output processing means and the decode processing means are respectively charged with the asynchronous processing and the decode processing, and the input/output processing means and the decode processing means operate in parallel as in pipeline processing. As a result, the decode processing means can be devoted to the decode processing, regardless of asynchronous processing. Accordingly, processes including input processing of stream data, decode processing of the inputted data, and output processing of decoded data are executed efficiently.
    • 媒体处理装置由用于执行由于外部因素而异步发生的输入/输出处理的I / O处理单元和用于执行主要用于解码存储在存储器中的数据流的解码处理的解码处理单元 输入/输出处理。 输入/输出处理包括接收异步输入的数据流,将输入的数据流存储在存储器中,并将数据流从存储器提供给解码处理单元。 解码处理单元由主要对数据流执行条件判断的顺序处理单元和与压缩视频数据的标题分析相一致的压缩视频数据执行解码处理的例程处理单元构成,与顺序处理并行。 因此,输入/输出处理装置和解码处理装置分别充有异步处理和解码处理,并且输入/输出处理装置和解码处理装置如在流水线处理中并行操作。 结果,无论异步处理如何,解码处理装置都可以用于解码处理。 因此,有效地执行包括流数据的输入处理,输入数据的解码处理和解码数据的输出处理的处理。
    • 8. 发明授权
    • Apparatus, method, and computer program for resource request arbitration
    • 用于资源请求仲裁的装置,方法和计算机程序
    • US07007138B2
    • 2006-02-28
    • US10413758
    • 2003-04-15
    • Tetsuji MochidaKosuke YoshiokaTokuzo Kiyohara
    • Tetsuji MochidaKosuke YoshiokaTokuzo Kiyohara
    • G06F13/16
    • G06F13/1642
    • In a resource request arbitration apparatus according to the present invention, a request masking unit masks a memory access request REQ that is issued by a resource requesting device at over a minimum frequency needed for the resource requesting device, and an arbitrating unit acknowledges one of the memory access requests RREQ that are not suspended by the request masking unit, based on a predetermined static order of priority. With this resource request arbitration apparatus, the arbitrating unit do not have to concern anything other than the predetermined priority order among the memory access requesting units, and an easy and plain arbitration system based on the static priority order ensures the minimum frequency for acknowledging the resource requests that each memory access requesting unit needs.
    • 在根据本发明的资源请求仲裁设备中,请求屏蔽单元以资源请求设备所需的最小频率对由资源请求设备发出的存储器访问请求REQ进行掩码,并且仲裁单元确认 基于优先级的预定静态顺序,请求屏蔽单元未暂停的存储器访问请求RREQ。 在该资源请求仲裁装置中,仲裁单元不需要涉及存储器访问请求单元之间的预定优先级顺序以外的任何其他事项,并且基于静态优先级顺序的容易且简单的仲裁系统确保用于确认资源的最小频率 请求每个存储器访问请求单元需要。
    • 10. 发明申请
    • MOVING PICTURE DECODING DEVICE, SEMICONDUCTOR DEVICE, VIDEO DEVICE, AND MOVING PICTURE DECODING METHOD
    • 移动图像解码设备,半导体器件,视频设备和移动图像解码方法
    • US20100021142A1
    • 2010-01-28
    • US12518527
    • 2007-11-21
    • Masaki MinamiShigeki FujiiKozo KimuraKosuke YoshiokaMakoto Yasuda
    • Masaki MinamiShigeki FujiiKozo KimuraKosuke YoshiokaMakoto Yasuda
    • H04N7/26H04N7/12
    • H04N19/439H04N19/42H04N19/436H04N19/44H04N19/61H04N19/70
    • A moving picture decoding device according to the present invention includes: a determination unit configured to determine the header information and the compressed image data in the stream; a header information storage unit configured to temporarily store the header information determined by the determination unit; a header address storage unit configured to store a header end address indicating an end of header information in a picture, the header end address being an address of the header information storage unit; a compressed image storage unit configured to temporarily store the compressed image data determined by the determination unit; an image address storage unit configured to store an image end address indicating an end of compressed image data in the picture, the image end address being an address of the compressed image storage unit; a header analysis unit configured to analyze the header information for each picture, based on the header end address; and a decoding unit configured to decode the compressed image data for each picture, based on the image end address and a result of the analysis by the header analysis unit, wherein the header analysis unit is configured to analyze header information of a picture immediately after the picture being decoded by the decoding unit.
    • 根据本发明的运动图像解码装置包括:确定单元,被配置为确定流中的标题信息和压缩图像数据; 标题信息存储单元,被配置为临时存储由所述确定单元确定的标题信息; 标题地址存储单元,被配置为将表示标题信息的结尾的报头结束地址存储在图像中,标题结束地址是标题信息存储单元的地址; 被配置为临时存储由所述确定单元确定的压缩图像数据的压缩图像存储单元; 图像地址存储单元,被配置为在图像中存储指示压缩图像数据的结束的图像结束地址,图像结束地址是压缩图像存储单元的地址; 头部分析单元,被配置为基于头部结束地址来分析每个图像的头部信息; 以及解码单元,被配置为基于所述图像结束地址和所述头部分析单元的分析结果对每个图像的压缩图像数据进行解码,其中,所述头部分析单元被配置为分析紧接在所述头部分析单元之后的图像的头部信息 图像被解码单元解码。