发明名称 |
Balancing compressed storage requirements with decompression times during punt protection processing in a page printer |
摘要 |
An imaging device and method optimize memory usage during a print overrun avoidance operation by employing selected compression schemes upon page bands while ensuring that required decompression times of the bands are met for subsequent rendering purposes. A preferred method includes compressing a band from a page of image data and, if an estimated decompression time for the compressed band does not satisfy a race-the-laser threshold for subsequent video imaging, then decompressing the band and measuring an actual decompression time. If the actual decompression time satisfies the race-the-laser threshold, then the method includes keeping the compressed band for subsequent video imaging. On the other hand, if the actual decompression time does not satisfy the race-the-laser threshold, then the band is re-compressed using an alternate compression scheme and re-evaluated similar to the originally compressed band to determine whether the recompressed band's decompression time will satisfy the race-the-laser threshold.
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申请公布号 |
US5999272(A) |
申请公布日期 |
1999.12.07 |
申请号 |
US19980175903 |
申请日期 |
1998.10.20 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
DOW, RICHARD M.;MELLOR, DOUGLAS J.;BLAIR, TIMOTHY P. |
分类号 |
G06F3/12;(IPC1-7):G06F15/00;G06K9/36 |
主分类号 |
G06F3/12 |
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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