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:
Jun. 12, 2012
Filed:
May. 29, 2008
Jianfeng Xu, Shenzhen, CN;
Lei Miao, Shenzhen, CN;
Chen HU, Shenzhen, CN;
Qing Zhang, Shenzhen, CN;
Lijing Xu, Shenzhen, CN;
Wei LI, Shenzhen, CN;
Zhengzhong Du, Shenzhen, CN;
Yi Yang, Shenzhen, CN;
Fengyan Qi, Shenzhen, CN;
Wuzhou Zhan, Shenzhen, CN;
Dongqi Wang, Shenzhen, CN;
Jianfeng Xu, Shenzhen, CN;
Lei Miao, Shenzhen, CN;
Chen Hu, Shenzhen, CN;
Qing Zhang, Shenzhen, CN;
Lijing Xu, Shenzhen, CN;
Wei Li, Shenzhen, CN;
Zhengzhong Du, Shenzhen, CN;
Yi Yang, Shenzhen, CN;
Fengyan Qi, Shenzhen, CN;
Wuzhou Zhan, Shenzhen, CN;
Dongqi Wang, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.