# Patent

## Title
Methods and data structures for multiple combined improved searchable formatted documents including citation and corpus generation

## Abstract

Searchable annotated formatted documents are produced by correlating documents stored as photographic or scanned graphic representations of an actual document (evidence, report, court order, etc.) with textual version of the same documents. A produced document will provide additional details in a data structure that supports citation annotation as well as other types of analysis of a document. The data structure also supports generation of citation reports and corpus reports. Methods of creating searchable annotated formatted documents including citation and corpus reports by correlating and correcting text files with photographic or scanned graphic of the original documents. Data structures for correlating and correcting text files with graphic images. Generation of citation reports, concordance reports, and corpus reports. Data structures for citation, concordance, and corpus reports generation. Multiple document data structures are used to create multiple citation documents and reports. Embodiments of citation reports and corpus reports contain correlated, comprehensive multiple citations.

## Background
RELATED APPLICATION
This application is a divisional application of U.S. application Ser. No. 12/897,706, filed Oct. 4, 2010, issued on Jun. 3, 2014 as U.S. Pat. No. 8,744,135. U.S. application Ser. No. 12/897,706 was a continuation-in-part of U.S. application Ser. No. 12/586,130, filed Sep. 16, 2009, published on Apr. 15, 2010 as U.S. patent application publication 2010/092088, entitled “METHODS AND DATA STRUCTURES FOR IMPROVED SEARCHABLE FORMATTED DOCUMENTS INCLUDING CITATION AND CORPUS GENERATION,” which issued as U.S. Pat. No. 8,433,708 on Apr. 30, 2013 and which is incorporated herein by reference.
This application, U.S. application Ser. No. 12/897,706, and U.S. application Ser. No. 12/586,130 claim priority under 35 U.S.C. §199(e) of U.S. provisional application Ser. No. 61/192,169, filed Sep. 16, 2008, entitled “METHODS AND DATA STRUCTURES FOR IMPROVED SEARCHABLE FORMATTED DOCUMENTS INCLUDING CITATION AND CORPUS GENERATION,” which is incorporated herein by reference.


FIELD OF THE INVENTION
This invention relates to multiple combined improved searchable formatted electronic documents and analysis tools, such as combined citation and corpus generation. Examples of documents include patents, patent applications, evidence files, and other documents which are available in graphic form and optionally also available in a text form.
BACKGROUND OF THE INVENTION
In the field of electronic document management there are many situations where a document is stored as a photographic or scanned graphic of the actual document. For example, in a litigation document management system example documents may represent evidence, reports, court orders, patent documents, etc. The graphic image of the page is critical in many cases and needs to be preserved. However, there is also a need to electronically search the document. Additionally, there has been a long felt need to be able to cut the text from a document and have an accurate internal citation, or location identification, automatically pasted into a new document (e.g. report, brief, etc.) with the text that was cut. In litigation, having analysis, reports, and arguments error free is very important and a significant amount of time spent creating quotes and internal citations and then in checking them to ensure accuracy. Moreover, some documents have a lineage over time that is represented by separate documents. This lineage may be for update or correction reasons where content is added, changed or deleted or it may be for progression reasons where the subject is moved forward. With patents, for example, a lineage may comprise subsequent patent applications which are divisions, continuations or continuations-in-part.
What is needed is a way to analyze documents in its graphic format and then be able to generate quotations with accurate internal citations. Also in patent analysis, for example, what also is needed is a way to thoroughly review all occurrences of certain terms in context to be able to thoroughly and accurately determine the meaning of those terms. Also what is needed is a way to correlate similar documents and provide multiple internal citations across those documents.
SUMMARY OF THE INVENTION
The current invention provides the ability to produce searchable annotated formatted documents by correlating multiple documents stored as a photographic or scanned graphic representations of an actual document (evidence, report, court order, etc.) with textual version of the same documents. A produced document will provide additional details using data structure(s) that would support the above described citation annotation as well as other types of analysis of a document. The data structures also support generation of combined citation and combined corpus reports.
Objects and Advantages
Accordingly, beside the objects and advantages described above, some additional objects and advantages of the present invention are:

    1. To provide a quicker and more effective method analyzing documents.
    2. To provide a highly accurate, electronically searchable document from graphic images of the document pages.
    3. To provide means and methods of document analysis that are easy to use.
    4. To reduce the cost of document analysis.
    5. To reduce the cost of evidence analysis.
    6. To improve the thoroughness of documents analysis.
    7. To improve the thoroughness of patent claim term analysis.
    8. To identify inconsistencies in the use of document terms, e.g. usage of disputed patent claim terms.
    9. To track changes over multiple related documents.
    10. To track additions over multiple related documents.
    11. To track deletions over multiple related documents.
    12. To track the lineage over multiple related documents.
    13. To provide citations that are comprehensive over multiple related or similar documents.





BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1A illustrates a process by which remote documents are obtained and collected and then subsequently converted to other formats.
FIG. 1B illustrates a process by which a searchable annotated formatted document is produced.
FIG. 2A illustrates data structures that are used to verify, correlate and correct meta-data data, for example, patent OCR data.
FIG. 2B illustrates an embodiment of a text data structure.
FIG. 2C illustrates an embodiment of a meta-data data structure.
FIG. 3A illustrates a text parse routine.
FIG. 3B illustrates a searchable formatted document parse routine.
FIG. 4 illustrates a correlate and correct routine.
FIG. 5 illustrates an annotation routine.
FIG. 6 illustrates generation of a concordance.
FIG. 7A illustrates generation of a word corpus.
FIG. 7B illustrates an embodiment of a word corpus.
FIG. 8A illustrates the generation of a citation report.
FIG. 8B illustrates an embodiment of a citation report.
FIG. 9 illustrates a high-level multiple document comparison and report generation diagram.
FIG. 10 illustrates a detailed multiple document comparison and report generation flow chart diagram.
FIG. 11 illustrates an embodiment of a combined word corpus.
FIG. 12 illustrates an embodiment of a combined citation report.













REFERENCE NUMERALS IN DRAWINGS


















  1
local computer



  2
network



  3
remote computer



  4
network accessible file collection



  5
converted file



  6
output device



 10
graphic images



 20
text file



 30
formatted document



 40
searchable formatted document



 50
corrected formatted document



 60
searchable annotated formatted




document



 62
parse routine



 64
correlate and correct routine



 66
attach data routine



 68
tag words and sentences routine



 71
relative fields



 72
citation fields



 73
part fields



 74
section fields



 75
text for sentences fields



 76
doc ID field



 80
text field



 81
sequential paragraph number



 82
sequential sentence number



 83
new paragraph start



 84
citation start column # field



 85
citation start line # field



 86
citation start word # field



 87
citation end column # field



 88
citation end line # field



 89
citation end word # field



 90
part field



 91
section field



 92
specification part



 98
doc ID field



 102
OCR page #



 104
OCR column #



 106
OCR line #



 108
OCR line coordinates



 110
OCR new paragraph start



 112
OCR line font size



 114
OCR line text



 116
OCR line top coordinate



 118
OCR line bottom coordinate



 120
OCR line left coordinate



 122
OCR line right coordinate



 200 a
first (text) data structure



 200 b
second (meta-data) data structure



 200
data structure(s)



 302
read text



 304
determine document parts



 306
determine document sections



 308
determine new paragraphs



 310
determine paragraph types



 312
apply relative numbers to each




section



 314
read text output



 316
determine parts output



 318
determine sections output



 320
determine new paragraph output



 322
determine paragraph type output



 324
re-apply relative numbers to each




section



 326
read searchable formatted




document



 328
assemble lines



 330
allocate lines to columns



 332
calculate line numbers



 334
read searchable formatted




document output



 336
assemble lines output



 338
allocate lines to columns output



 402
read text file



 404
read searchable formatted




document



 406
match text



 408
determine column line and word




values



 410
contains figures?



 412
determine figure # and item #



 414
contains claims?



 416
determine claim and clause #



 420
read text file output



 422
read searchable formatted




document output



 424
match text output



 426
determine column line and word




values output



 428
determine figure # and item #




output



 500
start



 502
more documents?



 504
obtain citation for document



 506
get sentence



 508
match any stored?



 510
update stored with citation



 512
add new stored entry



 514
done with document?



 520
report?



 522
generate report



 524
end



 600
concordance program



 602
concordance



 700
corpus program



 702
word or phrase corpus



 704
word or phrase corpus title



 710
prior content column



 712
word (or phrase) column



 714
subsequent content column



 716
citation column



 720
heading row



 722
corpus sample row 1



 724
corpus sample row 2



 728
corpus last sample row



 800
citation program



 802
citation document



 804
citation document title



 810 (a-d)
citation document section title



 812 (a-d)
citation sentence



 814 (a-d)
citation annotation



 900 a-c
citation program



 910 a-c
published document



 920 a-c
citation data structure



 930
multiple compare program



 940
combined data structure



 950
report



1702
combined corpus



1716
combined citation column



1802
combined citation document



1814 (a-d)
combined citation annotation



1816 (a-b)
citation document patent section




title










SPECIAL DEFINITIONS
corpus—a collection of recorded statements used as a basis for the descriptive analysis of language in a written document
concordance—an index of the important words used in a written document
annotation—extra information which is not normally displayed, such as citation information from a data structure that provides citations for text cut from a formatted document
citation—an internal reference to the location/position of text within a document
combined citation—a list of multiple citations for the similar text over multiple documents
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A illustrates a process by which remote documents are obtained and collected and then subsequently converted to other formats. Local computer 1 connects to a remote computer 3 via a network 2. Then it accesses file data from the network accessible file collection 4 and retrieves the desired files onto the local computer 1 over the network 2. Once on the local computer 1, the files can be converted into a single converted file 5. Once converted, the file can be output to a peripheral device 6, such as a display or a printer (as shown).
For example, the United States Patent and Trademark Office (USPTO) has a service which provides patent publications as TIFF files, one file for each page.
A patent related embodiment performs the following steps:

    
    
        a) Input a patent number
        b) Access the USPTO World Wide Web site over the Internet to obtain the HTML version of a patent and to use that HTML to determine the number of pages represented by graphic images (e.g. TIFF)
        c) Download each page's graphic image
        d) Convert the collection of graphic images into a single document (e.g. PDF or multipart TIFF).
        e) Optically recognize (via OCR) the page graphic images. Alternatively, each page's graphic image can be processed on the fly (e.g. recognized as each is downloaded in step c above).
    
    


These steps could be implemented in computer software. Example embodiments include an Acrobat plug-in or a World Wide Web browser plug-in. Good results have also been obtained implementing these steps as a script running on a group of computers including one computer running an OCR engine (such as OmniPage, TextBridge, or other commercially available OCR engine) and another computer running an Oracle database.
A novel improvement in the system illustrated in FIG. 1A is that an HTML (or plain text) version of the same subject matter can be used to correct spelling in an OCR document created from graphic page images (e.g. using Acrobat OCR capture). For example, in the embodiment for U.S. patents, the USPTO also provides an HTML version of the patent which can be used to correct and correlated the OCR text. It is well known that OCR is not 100% perfect and human comparison and correction is costly. This aspect of the system can significantly improve the value of searchable documents created by OCR.
Once the graphic images are converted (and optionally corrected), the document 5 can be printed, for example on printer 6.
FIG. 1B illustrates production of a searchable annotated formatted document 60. The U.S. patent example will be used to illustrate this aspect of the system. The USPTO provides a graphic image 10 for each page of a published patent. These graphic images 10 (e.g. TIFF files) are not text searchable (they are like photographs). A formatted document 30, such as an Adobe Acrobat PDF, can be created as a binder holding every graphic image 10 (routine A). See also FIG. 1A. The formatted document 30 (e.g. PDF file) can be processed with OCR (routine B) to convert the images to searchable text forming a searchable formatted document 40. Alternatively, an OCR engine can provide structured data which describes the text elements found in the document with the graphic location of each element, and which can be used instead of searchable formatted document 40. The USPTO also provides a text file 20 in HTML format for many patents. The text file 20 is electronically searchable. The searchable formatted document 40 is correlated with the text file 20 to correct the OCR text (routine C) resulting in a corrected formatted document 50.
The corrected formatted document 50 is a valuable tool for analysis.
Further, the corrected formatted document 50 can be used to add various annotations (routine D) to produce a searchable annotated formatted document 60. “Annotated” is not used in the general sense as would be understood by one of skill in the art. The word is used here in a new limited way to refer to the annotations from the data structure(s) 200 that provide the internal citations for quotes pasted from the searchable annotated formatted document 60. Again using the U.S. patent example, the searchable annotated formatted document 60 version of a patent can be used as the primary analysis document in a patent litigation or evaluation. When an expert or attorney wants to refer to a particular section of the patent, the user simply selects the desired words and a highly accurate quote and citation, including for example, column and line numbers, is automatically generated and can be pasted into a report or brief.
FIG. 2A illustrates data structures that are used to verify, correlate and correct document data, for example, patent OCR data. The data structures 200 can be implemented in various ways. Good results have been obtained by implementing them as Microsoft Excel spreadsheets, perl data structures, XML files, or Oracle database data tables.
The first data structure 200a generally contains each unit with information used to provide an internal citation, e.g. “('498 Patent 12:47-13:5)”. An example of a unit would be a sentence or a title. This data is substantially obtained from the HTML (or text version of the document) and may contain estimated values. In one embodiment, a spreadsheet document (such as Microsoft Excel) with functions is used to estimate the citations (to improve correlation ease or accuracy).
The second data structure 200b generally contains each line (or column line). Each column line has only one column and/or line number associated with it. This data preferably comes from OCR data (but may be input by people).
The data between these two structures are correlated with a unique ID for each entry in the tables. The sentence data has an ID for each sentence. The column line data has an ID for each line. The line data is matched, if possible, to each sentence's unique ID and give a sentence a relative ordinal number. The actual citation data, such as start column, start line, end column, and end line, is filled in the first data structure 200a based on matching first and last line data. The OCR text is corrected by verification against the HMTL data. Missing data in the data structure is flagged and estimates are used.
FIG. 2B illustrates an exemplary text data structure 200a that holds information that will be used to provide the citations for quotes pasted from the searchable annotated formatted document 60 or citations on a word or phrase corpus 702. The text data structure 200a also provides an alternative output that can be used independently from the formatted documents (30, 40, 50 or 60). The text data structure 200a is first instantiated by a parsing routine (FIG. 3) and updated by a correlation and correction routine (FIG. 4).
FIG. 2C illustrates an exemplary meta-data data structure 200b that holds information that will be used to as an interim repository for the data parsed from the searchable formatted document 40, or alternatively obtained from OCR.
FIG. 3A illustrates a text parse routine (which could be implemented in Perl, for example) which reads the text from the text file 20 or another source of text (step 302). It determines the document parts (step 304). For example, in a U.S. patent embodiment, parts could be one of Abstract, Drawing, Specification, or Claims. Then it determines document sections (step 306). For example, in a U.S. patent embodiment, document sections include Background of the Invention, Summary of the Invention section, and so forth. Then it determines new paragraphs (step 308). Then it determines paragraphs types (step 310), for example, regular paragraph text, tables, equations, etc. In step 312, the text data structure 200a in FIG. 2B would be filled in except for the citation fields (72). The text for each heading or sentence would be filled in the text field (80). Relative numbers would be filled in, for example in the specification part (92), each paragraph would be assigned a sequential paragraph number (81) and sequential sentence number (82). Sentence numbers would restart at 1 for each paragraph. In addition, any new paragraph starts (83) would be identified. In the patent drawings, for example, any text from the figures would be indexed. In the claims, each clause would be relative to the claim. The part fields (73, 90) and the section fields (74, 91) would be filled in.
At this point the text data structure 200a (without the citations) has an alternative use. It can be used to produce a text version of the subject document (e.g. patent) with numbered paragraphs (e.g. for electronic filing) e.g. “[103] Referring to FIG. 1B . . . . ”
FIG. 3B illustrates the searchable formatted document parse routine (which could be implemented in Perl, for example) which reads the searchable formatted document 40 (step 326). Then it takes the words and assembles the lines (step 328). Then it allocates each line to either the left or right column (step 330). Then it calculates the line numbers for each line (step 332). At this point, the meta-data data structure 200b in FIG. 2C would be filled in completely.
FIG. 5 illustrates the annotation routine which is an implementation of routine D in FIG. 1B. First the text (20 or 50) is parsed by the parse routine 62 (e.g. using the text parse routine shown in FIG. 3A) and the searchable formatted document parse routine (e.g. see FIG. 3B). Next the text data structure 200a is updated with correlation and correction information by the correlate and correct routine 64. For example, see FIG. 4.
The correlation information in the patent example would be the citation column, line and word numbers for the start and end of each sentence. The end could be optional because, for example, it could be determined by looking at the next record's start. The next step is to attach the data (e.g. FIG. 2B) by the attach data routine 66 to the document. In some embodiments, the data would be meta-data that is not normally viewable in normal display modes. In other embodiments, the data in each record could be stored as a user displayable “annotation” (in the general sense) at the user's option. In other embodiments, the data is simply appended to the end of the document e.g. as a table.
Next the words and/or sentences are tagged by the tag words and sentences routine (68) in the formatted document so that when a portion is cut or copied, the citation associated with the text is cut or copied with it. Special software associated with the document viewer would handle the “cut” and/or “copy” operation. For example, in PDF or FrameMaker or Microsoft Word a plug-in could be added (either by the publisher or as a 3rd party plug-in) to provide text plus the citation (e.g. “U.S. Pat. No. 8,888,523 17:40-18:3”) in the paste buffer.
Note that step 68 in FIG. 5 could be optional because the plug-in could use the attached data (step 66) to provide the citation in the paste buffer. However, by tagging the documents, the determination of the citation for a particular set of words is more straightforward at the time of the cut and/or copy operation.
FIG. 4 illustrates an example of the correlate and correct step 64 of FIG. 5. A text file 20 is read (step 402). A searchable formatted document 40 is read (step 404). The order of steps 402 and 404 is not significant, and may be performed in parallel. In step 406, the text file 20 in the form of the text data structure 200a is compared with a searchable formatted document 40 in the form of the meta-data data structure 200b. The relative text is matched to the positional information in the graphic version of the same document to determine page or column number, line number, and word number (92) or the line (step 408). If the document contains figures (decision 410), then the figure numbers and item numbers (94) are determined in step 412. If the document contains claims (decision 414), then the claim numbers and clause numbers are also determined in step 416. Thus the correlation routine updates the text data structure 200a (FIG. 2B) with the start (and optionally end) citation information 72 (84-89).
If the document or page has a document ID (e.g. a BATES number), it is added in (76, 98). After the correlate and correct routine (e.g. for example, see FIG. 4) is complete the data structure can be used in many ways including but not limited to:

    1. Annotation of the corrected formatted document 50 to form the searchable annotated formatted document 60.
    2. Production of a spreadsheet containing each text element and citation where by a reader can find text in the spreadsheet by electronically searching and quickly find the internal citation or location of the text in a paper version.
    3. Input to a concordance program 600 that identifies each occurrence of a word or phrase and produces a concordance 602 with each sentence with the specified word or phrase and its citation (FIG. 6).
    4. Input to a corpus program 700 that identifies each occurrence of a word or phrase and produces a corpus 702 with each sentence and with the specified word or phrase and its citation (FIG. 7A). FIG. 7B shows an embodiment of word or phrase corpus 702. In an alternate embodiment, FIG. 11 shows a combined word or phrase corpus 1702 (discussed below).
    5. Input to a citation program 800 that produces a citation document 802 with each sentence and with its citation (FIG. 8A). FIG. 8B shows an embodiment of a citation document 802. In an alternate embodiment, FIG. 12 shows a combined citation document 1802 (discussed below).


Note the word “corpus” generally means “entire body.” In the context of the field of language analysis it refers to a collection of recorded utterances used as a basis for the descriptive analysis of a language. In the context of this invention the word “corpus” (as well as “concordance”) is limited to the language used in a single document (e.g. a patent) or a small group of related documents (e.g. a set of related patents with common inventorship or subject matter).
The corpus 702 could be corpus for a single word or phrase i.e. a “word corpus” or for all the words in the document i.e. a “document corpus” or for a set of key words (e.g. a) similar to those selected for a concordance, or b) a set of disputed terms). This invention is not limited to patent analysis. It is also useful for analysis of other evidence, such as e-mail, source code, contracts, discovery documents, Web pages, contracts, etc.
The methods for:

    
    
        generating a corrected formatted document 50 (e.g. FIG. 1B),
        generating a searchable annotated formatted document 60 (e.g. FIG. 1B),
        generating a concordance 602 (e.g. FIG. 6),
        generating a corpus 702 (e.g. FIG. 7A), and
        generating a citation document 802 (e.g. FIG. 8A),
        generating a combined corpus 1702 (e.g. FIG. 11), and
        generating a combined citation document 1802 (e.g. FIG. 12), can each be implement on a web site enabled by a database for storing the correlation data and various generated documents.
    
    


The correlation data structure 200 contains corrected text and internal citations for each sentence in published document, such a patent or patent application, or similar document. When two or more such publications have any common text, the two or more data structures 200 for each respective document can be compared.
In FIG. 9, first a citation program 900 (a-c) is run for each published document 910 (a-c) (i.e. Pub #1, Pub #2, . . . Pub #N) and correlated text file producing a citation data structure 920 (a-c) (i.e. Struct #1, Struct #2, . . . Struct #N) for each respective formatted document. (See FIG. 10 steps 502 and 504).
Citation programs 900 (a-c) are embodiments of citation program 800. Citation data structures 920 (a-c) are embodiments of the data structures 200.
Once two or more data structures are available, the multiple compare program 930 compares each sentence entry in a first input sentence data structure 920a to each sentence entry in a second input sentence data structure 920b. (See FIG. 10 step 508). When sentences match, the matched sentence is stored in an output combined data structure 940 along with both citations. (See FIG. 10 step 510). Sentences that don't match will be discussed later.
Next, any remaining or new input data structures (e.g. 920c and so forth) are compared against the combined data structure 940 and added until all N inputs have been processed. (See FIG. 10 step 514). For sentences that are the same in all inputs, the finished data structure will contain the sentence plus each internal citation.
The matched sentences can be output in a multi-citation report 950 (see FIG. 10 step 522), for example, as:
“The stool comprises a seat connected to three legs.” ('123 8:5-6, '234 8:5-6, '789 9:20-22)
During the above processing, if a sentence doesn't match, in one embodiment, it will be stored as a sentence with only its citation. (See FIG. 10 step 512.) For example, if the first two instances match, but third, forth, and fifth subsequent instances have been modified there will be two entries. In one embodiment, the multiple citation report 950 would be, for example:
“The stool comprises a seat connected to three legs.” ('123 8:5-6, '456 8:6-7)
“The stool comprises a wooden seat connected to three legs which are round as shown in FIG. 3A.” ('234 8:5-7, '789 9:20-23, '790 9:20-23)
The multiple citation report 950 is an embodiment of a citation document 802, namely multiple citation document 1802.
The combined data structure 940 could be used in embodiments of any process that uses the data structure 200 as input, such as a concordance program 600 (FIG. 6) or corpus program 700 (FIG. 7), or citation program 800 (FIG. 8A).
In another embodiment, the multiple citation report 950 could show the difference between each version. The difference could be indicated by using different colors, by underlines and cross outs, by italics and bold, by symbols, by popups, or by callouts. For example,
“The stool comprises a wooden seat connected to three legs which are round as shown in FIG. 3A.” ('234 8:5-7, '456 8:6-7, '789 9:20-23, '790 9:20-23)
As in the citation process discussed above in regard to FIG. 1B, the citation data can be embedded in a searchable PDF document so that when a section is cut, the citation data is pasted with the section. Each original formatted document 910 (i.e. Pub #1, Pub #2, . . . , Pub #N) could be annotated with the collective data from the combined data structure 940.
The embedded multiple citations are displayed in a popup when the selection is made or when the cursor is over the sentence.
FIG. 10 is a flow chart showing an exemplary embodiment of the method just described. The method begins at start 500. If there are documents yet to be processed (at more documents? decision 502) the citation data 920 is obtained for the current document at step 504. At get sentence step 506, data for a current sentence is obtained from the respective citation data structure 920. Then, the current sentence text is checked to see if matches any stored sentence data in the combined data structure 940 at decision 508. If there is a match, the stored data in the combined data structure 940 is updated with the citation for the current sentence at step 510. If the current sentence does not match the stored data, then a new entry is added to the combined data structure 940 at step 512. If the data for the current document is done, at decision 514 flow returns to the more documents 502 decision; otherwise, flow returns to the get sentence data step 506.
If at decision 502, there are no more documents, flow continues to decision 520. If a report is needed, a multiple citation report 950 is generated at step 522.
In yet another embodiment, duplicated sentences in a single document could be cited with multiple citations the first time it occurs.
In still yet another embodiment, duplicated sentences in any of the multiple documents 910 could be cited with multiple citations the first time it occurs.
These combined data structures 940 and the multi-cited formatted searchable document 950 will be very valuable in analyzing documents with common lineage. The reports will save time for highly paid attorneys and experts and will allow judges and juries to see the true nature of complex document families.
FIG. 11 illustrates an embodiment of the combined word corpus 1702. This embodiment illustrates the use of the combined data structures 940 generated in FIG. 9 to create a combined word corpus for multiple documents (such as patents as shown in these examples). The word or phrase corpus title 704 displays the multiple documents considered for this corpus. In addition, a combined citation column 1716 is used instead of the citation column 716 in FIG. 7B. The combined word corpus 1702 is an embodiment of corpus 702 having multiple citations in the combined citation column 1716.
FIG. 12 illustrates a combined citation report 1802. This embodiment illustrates the use of the combined data structure 940 generated in FIG. 9 to create a combined citation report 950 for multiple documents (such as patents in these examples). The citation document title 804 displays the multiple documents considered for this report. Also, a combined citation annotation 1814 is used instead of the citation annotation 814 in FIG. 8B. In addition, one or more citation document patent section titles 1816, each representing a document, appear within each citation document section title 810 delineating the content related or found initially in the document the citation document patent section title 1816 relates to.
Advantages
Searchable
Text searches can be performed within the document or across multiple documents.
Copy and Paste Citation
Each sentence in the document can be copied and pasted into other documents. The internal citation for each sentence (or group of sentences) is copied and pasted along with the sentence.
Original Document Format Maintained
The original format of the document is maintained after it has been converted to a searchable format.
Identify Location in Original Document
As formats in the text file 20 may differ from the original formatted document 30, it is important that the annotations or citations correlate with each sentence and/or line and/or heading to identify its relative location with a document.
Accuracy
Optical Character Recognition (OCR) systems have struggled for decades to improve accuracy. OCR does very poorly on some documents. Further, for some situations, such as an expert witness report or Federal Court brief, errors can have severe impact on the perception of the facts in the case and ultimately cost millions of dollars. The present invention provides a way to improve accuracy of the computer generated data as well as improve the accuracy of human construction of reports and briefs.
Thorough
The concordance and corpus features of present invention provide a means for through analysis of every instance of a word or phase, or related phrases, in a document of related set of documents. For example, in a patent case, the corpus documents on disputed claim terms will not only make claim term analysis more efficient, but will also ensure that all usage is considered and inconsistencies are understood. The use of corpus reports will improve the rigorousness of claim term analysis and provide judges with stronger input upon which to base their judgments.
Cost Saving
The present invention provides several aspects that will save time and improve the performance of highly paid experts, analysis, and attorneys. Thus, significant savings will result from use of the present invention.
Lineage Changes
The present invention provides several aspects that will facilitate the ability to track changes, additions and deletions over multiple related documents over time namely comprehensive citations.
Consolidation
The correlated citations allow for similar data to be consolidated. The multiple citations provide complete reference. Minor changes are highlighted. This consolidation results in less space being taken up in reports, while maintaining comprehensive disclosure. This saves time and paper, and, in the case of patent analysis, results in more accurate understanding.
CONCLUSION, RAMIFICATION, AND SCOPE
Accordingly, an aspect of the present invention provides searchable annotated formatted documents that are produced by correlating documents stored as a photographic or scanned graphic representations of an actual document (evidence, report, court order, etc.) with textual version of the same documents. A produced document will provide additional details in a data structure that supports citation annotation as well as other types of analysis of a document. The data structure also supports generation of citation reports and corpus reports. A method aspect includes creating searchable annotated formatted documents including citation and corpus reports by correlating and correcting text files with photographic or scanned graphic of the original documents. Data structures for correlating and correcting text files with graphic images are valuable output by themselves. Another method aspect includes generation of citation reports, concordance reports, and corpus reports. Data structures provide for citation reports, concordance reports, and corpus reports generation.
While the above descriptions contain several specifics these should not be construed as limitations on the scope of the invention, but rather as examples of some of the preferred embodiments thereof. Many other variations are possible. For example, although U.S. patent data has been used in the examples, the document system could be applied to other categories of documents. Some embodiments would target specific types of documents. The routines could be implemented in hardware or using various software platforms. Additionally, the system could have additional features, or be used in different countries without departing from the scope and spirit of the novel features of the present invention.
Accordingly, the scope of the invention should be determined not by the illustrated embodiments, but by the appended claims and their legal equivalents.

## Claims

1. A multiple citation corpus data structure stored in a computer memory for a user specified word or phrase comprising an entry for every occurrence of the user specified word or phrase, each entry comprising:
a) prior context,
b) the user specified word or phrase,
c) subsequent context, and
d) one or more internal citations,
wherein the prior context, the user specified word or phrase, and the subsequent context forming a unique quote of each entry,
wherein each internal citation identifies a document and the location inside the document where the unique quote of the entry is found in a plurality of formatted documents, and
wherein the one or more internal citations of each entry is a combined citation comprising a complete list of every occurrence of the unique quote of the respective entry in the respective plurality of formatted documents.

2. The multiple citation corpus data structure of claim 1, further comprising citation start data, comprising a document identifier, a start column number, and a start line number.

3. The multiple citation corpus data structure of claim 2, further comprising citation end data, comprising an end column number and an end line number.

4. The multiple citation corpus data structure of claim 1, further comprising at least one of the group of:
a) internal citation page number,
b) internal citation paragraph number, and
c) internal citation sentence number.

5. The multiple citation corpus data structure of claim 1, further comprising identification of document parts, said document parts each comprising a distinct group of pages.

6. The multiple citation corpus data structure of claim 1, further comprising identification of document sections, said document sections each comprising a distinct group of paragraphs, under one or more headings.

7. The multiple citation corpus data structure of claim 1, further comprising identification of paragraph types.

8. The multiple citation corpus data structure of claim 1, further comprising identification of drawing figure numbers corresponding to drawing figures contained in at least one formatted document.

9. The multiple citation corpus data structure of claim 8, further comprising identification of drawing figure item numbers corresponding to the drawing figures.

10. The multiple citation corpus data structure of claim 1, further comprising identification of patent claim numbers contained in at least one formatted document,
wherein the at least one formatted document is a patent related publication.

11. The multiple citation corpus data structure of claim 1, wherein the user specified word is a single word root.

12. The multiple citation corpus data structure of claim 1, wherein the user specified phrase comprises a plurality of words in a specified sequence.

13. The multiple citation corpus data structure of claim 1, wherein multiple citation corpus data structure is based on a set of related words.

14. A multiple citation corpus report stored in a non-transitory computer readable medium for a user specified word or phrase comprising an entry for every occurrence of the user specified word or phrase, each entry comprising:
a) prior context,
b) the user specified word or phrase,
c) subsequent context, and
d) one or more internal citations,
wherein the prior context, the user specified word or phrase, and the subsequent context forming a unique quote of each entry,
wherein the user specified word or phrase was specified using a computer,
wherein each internal citation identifies a document and the location inside the document where the unique quote of the entry is found in a plurality of formatted documents,
wherein the one or more internal citations of each entry is a combined citation comprising a complete list of every occurrence of the unique quote of the respective entry in the respective plurality of formatted documents, and
wherein the multiple citation corpus report contains a single entry for the unique quote.

15. The multiple citation corpus report of claim 14,
wherein the multiple citation corpus report is displayed on a computer display.

16. The multiple citation corpus report of claim 14,
wherein the multiple citation corpus report is printed on paper using on a computer printer.

17. The multiple citation corpus report of claim 14, wherein multiple citation corpus report comprises citation start data, comprising a document identifier, a start column number, and a start line number.

18. The multiple citation corpus report of claim 17, wherein multiple citation corpus report comprises citation end data, comprising an end column number and an end line number.

19. The multiple citation corpus report of claim 14, wherein multiple citation corpus report is based on a set of related words.

20. The multiple citation corpus data structure of claim 1,
wherein the multiple citation corpus data structure contains a single entry for the unique quote.