首页> 外国专利> Insertion method and transmission method of vector information for voice data estimating in key re-synchronization, and voice data estimating method in key re-synchronization using vector information

Insertion method and transmission method of vector information for voice data estimating in key re-synchronization, and voice data estimating method in key re-synchronization using vector information

机译:用于密钥重新同步中的语音数据估计的矢量信息的插入方法和发送方法,以及使用矢量信息进行密钥重新同步中的语音数据估计的方法

摘要

Disclosed are a method of inserting vector information for estimating voice data in a key re-synchronization period, a method of transmitting vector information, and a method of estimating voice data in a key re-synchronization period using vector information, capable of estimating the voice data that corresponds to a silent period occurring in a key re-synchronization process when an encrypted digital voice is transmitted in a unidirectional wireless communication environment. A transmitter side inserts accumulation information (i.e., vector information) of a voice change direction of the transmitted previous frame in a key re-synchronization frame, using a voice feature that draws a sine wave, when making the key re-synchronization frame for the re-synchronization, and transmits the keyre-synchronization frame with the vector information inserted thereto. A receiver side estimates the voice data value in the key re-synchronization period using the accumulation information (i.e., vector information) in the voice change direction and slopes of the received voice data, to minimize the difference between the original voice and the estimated voice.
机译:公开了一种能够在密钥重新同步时段中插入用于估计语音数据的矢量信息的方法,一种发送矢量信息的方法以及使用矢量信息在密钥重新同步时段中估计语音数据的,能够估计语音的方法。当在单向无线通信环境中传输加密的数字语音时,对应于在密钥重新同步过程中发生的静默时段的数据。当对发送方进行密钥重同步帧时,发送方使用绘制正弦波的语音特征,将发送的前一帧的语音改变方向的累积信息(即矢量信息)插入到密钥重同步帧中。重新同步,并发送插入了矢量信息的密钥重新同步帧。接收器侧使用语音改变方向上的累积信息(即矢量信息)和接收到的语音数据的斜率来估计密钥重新同步时段中的语音数据值,以最小化原始语音和所估计的语音之间的差异。 。

著录项

  • 公开/公告号KR100902112B1

    专利类型

  • 公开/公告日2009-06-09

    原文格式PDF

  • 申请/专利权人

    申请/专利号KR20070025571

  • 申请日2007-03-15

  • 分类号G10L19/04;G10L19;H04M3/56;H04L12/66;

  • 国家 KR

  • 入库时间 2022-08-21 19:11:55

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