Patent
1992-04-30
1994-06-07
Shaw, Dale M.
395101, 395144, G06F 1520
Patent
active
053197488
ABSTRACT:
A printer/display control apparatus for processing documents represented in a structured hierarchical page description language. The documents are provided as a document data stream defined by a hierarchical structure having as a top level a "Pageset" of "Picture". Both the Pageset and the Picture consist of an optional Prologue or an optional Prologue and an optional Body. The Body of a Pageset consists of zero or more Pagesets or Pictures. The Body of Picture consists of zero or more Pictures or Tokensequence. Each Picture or Pageset has a "begin" and "end" used to define in a document data stream the beginning and end of the definitions that make up that entity. This invention provides an efficient method to process the "begin" and "end" of the document data stream.
REFERENCES:
patent: 4649513 (1987-03-01), Martin et al.
patent: 4870611 (1989-09-01), Martin et al.
"Interpress, The Source Book" by Harrington et al. (Simon and Schuster, Inc. 1988).
"PostScript Language Program Design", Second Edition, Addison-Wesley Publishing Company (1991).
ISO/IEC DIS 10180, Information Processing--Text Communication--Standard Page Description Language, Mar. 1991.
Ricoh & Company, Ltd.
Ricoh Corporation
Shaw Dale M.
Tung Kee M.
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