The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2010
Filed:
Aug. 11, 2009
Wuzhou Zhan, Shenzhen, CN;
Dongqi Wang, Shenzhen, CN;
Yongfeng Tu, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Qing Zhang, Shenzhen, CN;
Lei Miao, Shenzhen, CN;
Jianfeng Xu, Shenzhen, CN;
Chen HU, Shenzhen, CN;
Yi Yang, Shenzhen, CN;
Zhengzhong Du, Shenzhen, CN;
Fengyan Qi, Shenzhen, CN;
Wuzhou Zhan, Shenzhen, CN;
Dongqi Wang, Shenzhen, CN;
Yongfeng Tu, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Qing Zhang, Shenzhen, CN;
Lei Miao, Shenzhen, CN;
Jianfeng Xu, Shenzhen, CN;
Chen Hu, Shenzhen, CN;
Yi Yang, Shenzhen, CN;
Zhengzhong Du, Shenzhen, CN;
Fengyan Qi, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present invention discloses a signal processing method adapted to process a synthesized signal in packet loss concealment. The method includes the following steps: receiving a good frame following a lost frame, obtaining an energy ratio of energy of a signal in the signal of the good frame signal to energy of a synthesized signal corresponding to the same time of the good frame; and adjusting the synthesized signal in accordance with the energy ratio. The present invention also discloses a signal processing apparatus and a voice decoder. Through using the method provided by the present invention, the synthesized signal is adjusted in accordance with the energy ratio of the energy of the first good frame following the lost frame to the energy of the synthesized signal to ensure that there be not a waveform sudden change or an energy sudden change at the place where the lost frame and the first good frame following the lost frame are jointed in the synthesized signal, to realize the waveform's smooth transition and to avoid music noises.