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
    • 1. 发明授权
    • Voice signal coding method
    • 语音信号编码方式
    • US4870685A
    • 1989-09-26
    • US111102
    • 1987-10-22
    • Yuichi KadokawaHiroki UchiyamaWasaku Yamada
    • Yuichi KadokawaHiroki UchiyamaWasaku Yamada
    • H03M7/30
    • H03M7/3053
    • A voice signal coding method for compressing voice data by coding is provided. PCM coded voice data are grouped into blocks in a timed sequence, each block having a predetermined number of data. A scale data representing a MSB corresponding to a maximum value in absolute value in each block is identified. Then, a code data is defined by a predetermined number of bits of data containing the MSB, thereby having the voice data compressed by coding. The code data is corrected such that an error between a decoded value of the code data and the original voice data corresponding to the code data is minimized. With such a correction step, the code data is refined such that a reproduced voice signal by decoding the thus corrected code data is very close to the original voice signal.
    • 提供了一种用于通过编码压缩语音数据的语音信号编码方法。 PCM编码语音数据以定时序列分组成块,每个块具有预定数量的数据。 识别表示与每个块中的绝对值中的最大值对应的MSB的比例数据。 然后,通过预定数量的包含MSB的数据位来定义代码数据,从而通过编码压缩语音数据。 校正代码数据,使得代码数据的解码值与对应于代码数据的原始语音数据之间的误差最小化。 通过这样的校正步骤,对代码数据进行细化,使得通过解码这样校正的代码数据的再生语音信号非常接近原始语音信号。
    • 2. 发明授权
    • Image processing system for adaptive coding of color document images
    • 用于彩色文档图像自适应编码的图像处理系统
    • US5696842A
    • 1997-12-09
    • US300846
    • 1994-09-06
    • Hisao ShirasawaWasaku Yamada
    • Hisao ShirasawaWasaku Yamada
    • H04N1/41G06K9/34
    • H04N1/41
    • An image processing system includes an input part for reading an image from a color document containing a multilevel gradation graphic image and a text image, a region separator part for separating the image into a plurality of elemental blocks having M.times.N picture elements according to a type of image data that is contained in each elemental block, whether the elemental block contains a black-and-white line portion of the image or a halftone portion of the image, and an encoding part for encoding image data in the black-and-white line portion through an encoding process appropriate for bi-level image data and for encoding image data in the halftone portion through an encoding process appropriate for multilevel gradation image data so as to produce a compressed image.
    • 图像处理系统包括用于从包含多级灰度图形图像和文本图像的彩色文档读取图像的输入部分,用于根据图像的类型将图像分离成具有M×N个图像元素的多个元素块的区域分离部分 包含在每个元素块中的图像数据,元素块是否包含图像的黑白线部分或图像的半色调部分,以及用于编码黑白线中的图像数据的编码部分 通过适用于双电平图像数据的编码处理并通过适用于多级灰度图像数据的编码处理对半色调部分中的图像数据进行编码,以产生压缩图像。