发明名称 |
METHOD OF REDUCING QUANTIZATION NOISE |
摘要 |
<p>There is described a system (10; 300) for processing an input signal (340) to generate a corresponding encoded output signal (380). The system (10; 300) includes a plurality of quantizing devices (30, 70; 350, 370) coupled in series, the system (10; 300 being configured in operation to reduce tandem quantization noise arising therein by: (a) analyzing the system (10; 300) to determine signal regions (290) in which tandem noise errors occur; and (b) modifying one or more earlier quantizing devices (30; 350) in the system (10; 300) with backward correction to reduce tandem noise arising therein from said determined signal regions (290), said one or more earlier quantizing devices (30; 350) not including a last quantizing device (70; 370) in series the system (10; 300).</p> |
申请公布号 |
EP1805996(B1) |
申请公布日期 |
2009.04.22 |
申请号 |
EP20050790703 |
申请日期 |
2005.10.14 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN DER VEEN, MINNE;LEMMA, AWEKE, N. |
分类号 |
H04N19/89;G10L19/16 |
主分类号 |
H04N19/89 |
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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