Hardcopy lossless data storage and communications for electronic document processing systems
First Claim
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1. In an electronic document processing system for transferring information back and forth between an electronic domain and a hardcopy domain;
- said system including computer means for operating upon and storing electronic document files in a machine readable format in said electronic domain, input scanner means coupled to said computer means for transforming information from hardcopy documents in said hardcopy domain to said electronic domain, and printer means coupled to said computer means for printing human readable renderings of selected ones of said files on hardcopy documents;
the improvement comprisingan interface means between said computer means and said printer means for encoding at least one attribute of each of said selected electronic document files in a machine readable code that said printer means prints on said hardcopy documents along with the human readable renderings of the respective files;
said attribute of each file being content of said file that is defined in said electronic domain but not explicitly defined by the human readable rendering of said file that is printed by said printer means, whereby said attribute of each of said selected electronic document files is recoverable from the code printed on a corresponding hardcopy document when information carried by said corresponding hardcopy document is transformed from said hardcopy domain to said electronic domain, even when such an attribute is irrecoverable from the human readable rendering.
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Abstract
Machine readable electronic domain definitions of part or all of the electronic domain descriptions of hardcopy documents and/or of part or all of the transforms that are performed to produce and reproduce such hardcopies documents are encoded in codes that are printed on such documents, thereby permitting the electronic domain descriptions of such documents and/or such transforms to be recovered more robustly and reliably when the information carried by such documents is transformed from the hardcopy domain to the electronic domain.
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Citations
19 Claims
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1. In an electronic document processing system for transferring information back and forth between an electronic domain and a hardcopy domain;
- said system including computer means for operating upon and storing electronic document files in a machine readable format in said electronic domain, input scanner means coupled to said computer means for transforming information from hardcopy documents in said hardcopy domain to said electronic domain, and printer means coupled to said computer means for printing human readable renderings of selected ones of said files on hardcopy documents;
the improvement comprisingan interface means between said computer means and said printer means for encoding at least one attribute of each of said selected electronic document files in a machine readable code that said printer means prints on said hardcopy documents along with the human readable renderings of the respective files;
said attribute of each file being content of said file that is defined in said electronic domain but not explicitly defined by the human readable rendering of said file that is printed by said printer means, whereby said attribute of each of said selected electronic document files is recoverable from the code printed on a corresponding hardcopy document when information carried by said corresponding hardcopy document is transformed from said hardcopy domain to said electronic domain, even when such an attribute is irrecoverable from the human readable rendering. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- said system including computer means for operating upon and storing electronic document files in a machine readable format in said electronic domain, input scanner means coupled to said computer means for transforming information from hardcopy documents in said hardcopy domain to said electronic domain, and printer means coupled to said computer means for printing human readable renderings of selected ones of said files on hardcopy documents;
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14. In an electronic document processing system having scanner means for transforming information from a hardcopy domain to an electronic domain, and rendering means for transferring representations of human readable information from sources in at least one-of said domains to hardcopy documents in said hardcopy domain in accordance with a transform having known attributes, including system attributes which are not explicitly defined by said human readable information;
- the improvement comprising
means within said rendering means for printing a machine readable encoded description of at least one of the known system attributes, including system attributes which are not explicitly defined by said human readable information of said transform on said hardcopy documents along with said human readable information, such that at least one of said system attributes of said transform is stored on said hardcopy documents for retrieval when any of said hardcopy documents is transformed from said hardcopy domain to said electronic domain. - View Dependent Claims (15, 16, 17, 18, 19)
- the improvement comprising
Specification