Patent EP0606137A2 successfully refreshed from Google Patents.
EP0606137A2
Expired / Lapsed
EP
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Apparatus and method for storing and printing image data
Assignee: Xerox Corp
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Filing: 1994-01-04
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Granted: —
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Expires: 2014-01-04
Abstract
Abstract A printing system for making prints from a stream of image data written in a printer page description language is provided. The stream of image data includes a compressed bitmap having break entries dividing the bitmap into a plurality of image data segments. The printing system includes an arrangement for separating the compressed bitmap from the stream of image data and a boundary code catcher (BCC), which communicates with the separating arrangement, for creating a table to list the break entries of the bitmap. A memory section (72) is employed to store the bitmap with its corresponding break entry table, and a plurality of imaging channels, which communicate with the memory section, are employed to decompress selected segments of the bitmap in parallel.
Inventors
- 👤 David A. Catapano
- 👤 Kitty Sathi
- 👤 Thomas B. Zell
- 👤 Lillian-Liu Hsu
- 👤 Mark C. Biondi
- 👤 Richard T. Lauria
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:51
CPC Classifications
G; G06; G06K; G06K15/00; G06K2215/00; G06K2215/0002; G06K2215/0005; G06K2215/0011
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
106 words
A printing system for making prints from a stream of image data written in a printer page description language with the stream of image data including a compressed bitmap having break entries dividing the bitmap into a plurality of image data segments, comprising: means for separating the compressed bitmap from the stream of image data; means, communicating with said separating means, for creating a table to list the break entries of the bitmap; a memory section for storing the bitmap with its corresponding break entry table; and a plurality of imaging channels, communicating with said memory section, for decompressing selected segments of the bitmap in parallel.
Claim 2
Dependent Claim
103 words
A parsing apparatus for a printing system with multiple decompression channels, said parsing apparatus receiving a stream of image data written in a printer page description language with the stream of image data including a compressed bitmap having break entries dividing the bitmap into a plurality of image data segments, comprising: means for separating the compressed bitmap from the stream of image data; and means, communicating with said separating means, for creating a table to list the break entries of the bitmap so that selected segments of the bitmap are decompressed, in parallel, with the multiple decompression channels and the break entry table.
Claim 3
Dependent Claim
30 words
A system/apparatus as claimed in claim 1 or claim 2, wherein said separating means comprises filtering means for modifying the stream of image data while separating the compressed bitmap therefrom.
Claim 4
Dependent Claim
26 words
A system as claimed in claim 3, when appended to claim 1, further comprising a second memory section for storing the modified stream of image data.
Claim 5
Dependent Claim
41 words
Apparatus as claimed in claim 3 when appended to claim 2, further comprising: a first memory section for storing the compressed bitmap with the corresponding break entry table; and a second memory section for storing the modified stream of image data.
Claim 6
Dependent Claim
38 words
A system/apparatus as claimed in claim 4 or claim 5, wherein said filtering means directs the compressed bitmap, with its corresponding break entry table, to the first memory section and the modified stream to the second memory section.
Claim 7
Independent Claim
48 words
A system/apparatus as claimed in any one of claims 3 to 6, including means for inputting the stream of image data to the separating means, wherein said creating means communicates with said filtering apparatus for operating on the stream of image data being received by said inputting means.
Claim 8
Independent Claim
18 words
A system/apparatus as claimed in any one of the preceding claims, wherein said separating means comprises a preparser.
Claim 9
Dependent Claim
18 words
A system/apparatus as claimed in claim 7, wherein said creating means receives the compressed bitmap from said preparser.
Claim 10
Independent Claim
35 words
A system/apparatus as claimed in any one of the preceding claims, wherein said creating means comprises a boundary code catcher for examining the bitmap and placing the break entries thereof in the break entry table.
References Cited (Backward Citations)
No citation records indexed.
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