会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 发明申请
    • Parity check matrix generation method, data transmission system, encoding device, decoding device, and a parity check matrix generation program
    • 奇偶校验矩阵生成方法,数据传输系统,编码装置,解码装置和奇偶校验矩阵生成程序
    • US20070186140A1
    • 2007-08-09
    • US10586541
    • 2005-01-17
    • Yuzo Senda
    • Yuzo Senda
    • H03M13/00
    • H03M13/1148H03M13/118
    • A method is disclosed that allows the easy generation of low-density parity-check codes that can realize superior error-correcting characteristics. A processor (50) of a transmission line encoder constructs parity check matrix H from partial matrix H1 of m rows and k columns on the left side and partial matrix H2 of m rows and m columns on the right side. The processor (50) generates partial matrix H2 as a unit matrix. The processor (50) generates partial matrix H1 to satisfy the conditions that, when any two rows contained in partial matrix H1 are selected, the two rows have periods that are relatively prime, or when the periods are identical, the two rows have different phases. The processor (50) then joins partial matrix H1 and partial matrix H2 to generate parity check matrix H.
    • 公开了一种允许容易地生成能够实现优异的纠错特性的低密度奇偶校验码的方法。 传输线编码器的处理器(50)从左侧的m行和k列的部分矩阵H1构成奇偶校验矩阵H,右侧的m行和m列的部分矩阵H2构成。 处理器(50)生成部分矩阵H2作为单位矩阵。 处理器(50)产生部分矩阵H1以满足条件,当选择包含在部分矩阵H1中的任何两行时,两行具有相对素数的周期,或者当周期相同时,两行具有不同的相位 。 然后处理器(50)连接部分矩阵H1和部分矩阵H2以产生奇偶校验矩阵H.
    • 42. 发明授权
    • Multichannel multiplex system for transmitting and receiving coded data signals
    • 用于发送和接收编码数据信号的多通道多路复用系统
    • US06252990B1
    • 2001-06-26
    • US09087228
    • 1998-05-29
    • Yuzo Senda
    • Yuzo Senda
    • G06K936
    • H04N21/2365H04N19/61H04N19/70H04N21/4347
    • A multiplex data transmission system for transmitting N coded programs having differing bandwidth requirements over M separate channels. The N programs are separately encoded and allocated to the M channels in such a manner that optimum use is made of the available bandwidth in the channels. This is achieved by summing the bandwidth requirements for all the possible distinct combinations of the N programs taken M at a time, and selecting the combination which most closely matches the bandwidth capabilities of the available channels. A multiplexing device generates M separate coded data strings corresponding to the program allocation. At the receiver, a decoder is provided which selectively recovers a user-designated one of the N programs. The decoder includes an input device by which the user designates the desired program, a selecting device which selects the multiplexed code string including the designated program based on identifying information transmitted with the coded data strings, an inverse multiplexing device which extracts the designated coded program signal from the selected one of the M multiplexed code strings and a decoding circuit which decodes the encoded data signal extracted by the inverse multiplexing device to recreate the desired program.
    • 一种用于在M个独立信道上发送具有不同带宽要求的N个编码节目的复用数据传输系统。 N个节目被分别编码并分配给M个频道,以便最佳地利用频道中的可用带宽。 这是通过对一次采用的M个N个节目的所有可能的不同组合的带宽需求相加,并且选择与可用信道的带宽能力最接近的组合来实现的。 多路复用装置产生与节目分配相对应的M个单独的编码数据串。 在接收机处,提供一个解码器,其选择性地恢复N个节目中的用户指定的一个节目。 解码器包括用户指定所需节目的输入装置,选择装置,其基于用编码数据串发送的识别信息来选择包括指定节目的多路复用码串;反向多路复用装置,提取指定的编码节目信号 从所述M个多路复用码串中选择的一个和解码电路,对由所述逆多路复用装置提取的编码数据信号进行解码,以重新创建所需的节目。
    • 43. 发明授权
    • Motion picture adaptive prediction encoder with a quantization parameter
decided in accordance with block classification
    • 具有根据块分类决定的量化参数的运动图像自适应预测编码器
    • US5532745A
    • 1996-07-02
    • US120079
    • 1993-09-13
    • Yuzo Senda
    • Yuzo Senda
    • H04N19/50H04N19/107H04N19/12H04N19/134H04N19/149H04N19/15H04N19/176H04N19/189H04N19/196H04N19/423H04N19/503H04N19/51H04N19/593H04N19/60H04N19/61H04N19/65H04N7/36
    • H04N19/126H04N19/149H04N19/159H04N19/176H04N19/61H04N19/146H04N19/152
    • Blocks of each of successive frames of a motion picture signal are classified into classified blocks in accordance either with selected schemes for use in adaptive prediction encoding the signal or with whether the selected schemes are restricted or not. On encoding each classified block, a quantization parameter is decided based on an amount of codes produced per classified block. The codes are stored in a buffer, and delivered outwardly of the buffer at a predetermined code rate while the remaining codes are reserved in the buffer. The quantization parameter is also based on an initial amount of the reserved codes kept in the buffer at a beginning of each frame, a code amount characteristic value, and an amount of codes assigned to each classified block. The code amount characteristic value is calculated by a product of the quantization parameter and the amount of codes produced. The amount of codes assigned to each classified block is based on the amount of codes produced, an individual amount of the reserved codes kept for each classified block, and the code amount characteristic value. This makes it possible to maintain the quantization parameter substantially constant throughout the successive frames and to reduce delays caused by the buffer.
    • 运动图像信号的每个连续帧的块根据用于对信号进行自适应预测编码的所选择的方案或者所选择的方案是否被限制而被分类为分类块。 在对每个分类块进行编码时,基于每个分类块产生的代码量来确定量化参数。 代码存储在缓冲器中,并以预定的代码速率在缓冲器外面传送,而剩余代码被保留在缓冲器中。 量化参数还基于在每帧的开始处保持在缓冲器中的保留代码的初始量,代码量特性值和分配给每个分类块的代码量。 代码量特征值由量化参数和代码量的乘积来计算。 分配给每个分类块的代码量基于产生的代码量,为每个分类块保留的保留代码的个别数量和代码量特性值。 这使得可以在整个连续帧中维持量化参数基本上是恒定的,并且减少由缓冲器引起的延迟。