公开(公告)号：US08831961B2

公开(公告)日：2014-09-09

申请号：US13914206

申请日：2013-06-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Miao ,  Fengyan Qi ,  Jianfeng Xu ,  Dejun Zhang ,  Qing Zhang

IPC: G10L19/00 ,  G10L19/18 ,  G10L21/06 ,  G10L19/06 ,  G10L19/09

CPC classification number: G10L21/06 ,  G10L19/06 ,  G10L19/09 ,  G10L19/18

Abstract: The present disclosure relates to coding and decoding technologies, and discloses a preprocessing method, a preprocessing apparatus, and a coding device. The preprocessing method includes: obtaining characteristic information of a current frame signal; identifying whether the current frame signal requires no coding operation of removing LTC according to the characteristic information of the current frame signal and preset information; and if identifying that the current frame signal requires no coding operation of removing LTC, performing the coding operation of removing STC for the current frame signal; and if identifying that the current frame signal requires the coding operation of removing LTC, performing the coding operations of removing both LTC and STC for the current frame signal. Through the technical solution provided herein, the coding operation of removing LTC is performed for only part of the input frame signals.

Abstract translation: 本公开涉及编码和解码技术，并且公开了一种预处理方法，预处理装置和编码装置。 预处理方法包括：获得当前帧信号的特征信息; 识别当前帧信号是否不需要根据当前帧信号和预设信息的特征信息去除LTC的编码操作; 并且如果识别出当前帧信号不需要去除LTC的编码操作，则执行去除当前帧信号的STC的编码操作; 并且如果识别当前帧信号需要去除LTC的编码操作，则执行去除当前帧信号的LTC和STC的编码操作。 通过本文提供的技术方案，仅对部分输入帧信号执行去除LTC的编码操作。