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. 23, 2009
Filed:
Nov. 18, 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
A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.