发明名称 |
INTERPOLATION METHOD USING PRE-EMPHASIZED INPUT SAMPLES |
摘要 |
A method for producing a plurality of successive output data values defining an output curve that approximates an input curve defined by a plurality of input sample values, the output data values having a higher sampling frequency than the input sample values, the method comprising the steps of: pre-emphasizing the plurality of input sample values; defining successive and overlapping intervals including at least three of the pre-emphasized input sample values; interpolating a plurality of the output data values in an interpolation interval by calculating a moving average of a linear interpolation curve based on the at least three pre-emphasized input sample values, each of the output data values being influenced by the at least three pre-emphasized input sample values; and, emphasizing differently the influence of the at least three pre-emphasized input sample values for determining different ones of the output data values in the interpolation interval, whereby the pre-emphasizing step brings the output curve controllably close to each of the input sample values and each incremental slope of the output curve varies smoothly between adjacent output data values.
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申请公布号 |
WO9967955(A1) |
申请公布日期 |
1999.12.29 |
申请号 |
WO1999US09871 |
申请日期 |
1999.05.06 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC.;O'DONNELL, EUGENE, MURPHY |
发明人 |
O'DONNELL, EUGENE, MURPHY |
分类号 |
G06F17/17;G06F7/38;G09G1/00;H04N9/28;(IPC1-7):H04N9/28 |
主分类号 |
G06F17/17 |
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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