发明名称 |
ENCODING METHOD AND APPARATUS, DECODING METHOD AND APPARATUSAND RECORDING MEDIUM |
摘要 |
An encoding method and apparatus and a decoding method and apparatus in which the encoded information is decreased in volume and in which the encoding and decoding operations are performed with a smaller processing volume and a smaller buffer memory capacity. The apparatus includes a low range signal splitting circuit for separating low-range side signal components from L and R channel signals converted by a transform circuit into spectral signal components, and a channel synthesis circuit for synthesizing (L+R) channel signal components from the L and R channel spectral signal components. The apparatus also includes a high range signal separating circuit for separating the high range side signal components from the (L+R) channel signal components, a signal component encoding circuit for compression-encoding low-range side signal components and a signal component encoding circuit for compression-encoding the normalization coefficient information obtained on normalization of the (L+R) channel high-range signal components.
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申请公布号 |
CA2233521(C) |
申请公布日期 |
2007.06.26 |
申请号 |
CA19982233521 |
申请日期 |
1998.03.30 |
申请人 |
SONY CORPORATION |
发明人 |
SHIMOYOSHI, OSAMU;TSUTSUI, KYOYA |
分类号 |
G06F17/14;H03M7/00;G10L19/00;G11B20/00;G11B20/10;G11B23/00;H04B1/66;H04H20/88;H04S1/00 |
主分类号 |
G06F17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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