Balancing compressed storage requirements with decompression tim

Details Balancing compressed storage requirements with decompression tim Balancing compressed storage requirements with decompression tim

1998-10-20

1999-12-07

Grant, II, Jerome

Facsimile and static presentation processing

Static presentation processing

Attribute control

G06F 1500, G06K 936

Patent

active

059992727

ABSTRACT:
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.

REFERENCES:
patent: 5129049 (1992-07-01), Cuzzo et al.
patent: 5479587 (1995-12-01), Campbell et al.
patent: 5483622 (1996-01-01), Zimmerman et al.
U.S. Patent Application S/N: 08/958,437; Filed: Oct. 27, 1997; Title: Memory Partitioning For Multi-Resolution Pauseless Page Printing; Inventor(s): Campbell et al.

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