Method and apparatus to manage picture and pageset for document processing
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United States of America Patent
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Jun 7, 1994
Grant Date -
N/A
app pub date -
Apr 30, 1992
filing date -
Apr 30, 1992
priority date (Note) -
In Force
status (Latency Note)
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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.
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