CN101546560B - 音频编解码装置及编解码方法 - Google Patents
音频编解码装置及编解码方法 Download PDFInfo
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CN101546560A CN101546560A (zh) | 2009-09-30 |
CN101546560B true CN101546560B (zh) | 2011-08-24 |
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CN102104776A (zh) * | 2009-12-21 | 2011-06-22 | 康佳集团股份有限公司 | 一种网络电视平台mpeg音频多相合成滤波方法 |
CN102129861B (zh) * | 2010-01-15 | 2013-06-12 | 富士通株式会社 | 信号变换方法和系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6343304B1 (en) * | 1999-03-09 | 2002-01-29 | National Science Council | Apparatus with selective fixed-coefficient filter for performing recursive discrete cosine transforms |
CN1526103A (zh) * | 2001-07-11 | 2004-09-01 | ��ʽ���羫������ | 离散余弦变换矩阵分解方法及其装置 |
CN1858998A (zh) * | 2006-04-20 | 2006-11-08 | 上海交通大学 | 数字音频滤波器的无乘法实现方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6343304B1 (en) * | 1999-03-09 | 2002-01-29 | National Science Council | Apparatus with selective fixed-coefficient filter for performing recursive discrete cosine transforms |
CN1526103A (zh) * | 2001-07-11 | 2004-09-01 | ��ʽ���羫������ | 离散余弦变换矩阵分解方法及其装置 |
CN1858998A (zh) * | 2006-04-20 | 2006-11-08 | 上海交通大学 | 数字音频滤波器的无乘法实现方法 |
Non-Patent Citations (2)
Title |
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Hi-Seok Kim,et al..A new optimized algorithm for computation of MDCT and its inverse transform.《Proceedings of 2004 International Symposium on Intelligent Signal Processing and Communication Systems,2004. ISPACS 2004》.2004,528-530. * |
徐盛等.一种新的MDCT快速算法.《数据采集与处理》.2000,第15卷(第4期),431-434. * |
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Effective date of registration: 20180409 Address after: The 300456 Tianjin FTA test area (Dongjiang Bonded Port) No. 6865 North Road, 1-1-1802-7 financial and trade center of Asia Patentee after: Xinji Lease (Tianjin) Co.,Ltd. Address before: Pudong Zhangjiang Zuchongzhi road 201203 Lane 2288 Shanghai City Center Building 1 houses Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. |
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Application publication date: 20090930 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xinji Lease (Tianjin) Co.,Ltd. Contract record no.: 2018990000196 Denomination of invention: Audio coding and decoding device and coding and decoding method Granted publication date: 20110824 License type: Exclusive License Record date: 20180801 |
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Effective date of registration: 20221020 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: 300456 1-1-1802-7, north area of financial and Trade Center, No. 6865, Asia Road, Tianjin pilot free trade zone (Dongjiang Bonded Port Area) Patentee before: Xinji Lease (Tianjin) Co.,Ltd. |