System and method for identifying an identical audio segment using text comparison

• US 7,120,581 B2
• Filed: 05/31/2001
• Issued: 10/10/2006
• Est. Priority Date: 05/31/2001
• Status: Expired due to Fees

• Current Assignee: Custom Speech USA, Inc.
• Original Assignee: Custom Speech USA, Inc.
• Inventors: Kahn, Jonathan, Flynn, Thomas P.
• Primary Examiner(s): MCFADDEN, SUSAN IRIS
• Application Number:
  US10/276,382
• Publication Number:
  US 20040128143A1
• Time in Patent Office: 1,958 Days
• Field of Search: None
• US Class Current: 704/235
• CPC Class Codes: G06F 40/194 Calculation of difference between files

Abstract

A method for comparing text in a first file to text in a second file. The method includes segmenting text in the first and second files to one word per line; comparing the segmented versions of the versions of the first and second files on a line by line basis; creating a result file using the segmented version of the first file; and augmenting the result file with indication of error using a sandwiching technique. This sandwiching technique includes identifying correct segments that are immediately adjacent any differences identified by comparing the segmented versions of the first and second files on a line by line basis toward sandwiching the erroneous segments between correct segments. Said method incorporates video monitor (26), keyboard (24), and mouse (23), along with microphone (25) and digital recorder (14) for implementing the invention.

Claims

1. A method for comparing text in a first file to text in a second file comprising:

segmenting text in the first file to one word per line;

segmenting text in the second file to one word per line;

comparing the segmented versions of the first and second files on a line by line basis;

creating a result file using the segmented version of the first file; and

augmenting the result file with indication of error using a sandwiching technique.

2. The method according to claim 1 wherein the sandwiching technique includes identifying correct segments that are immediately adjacent to any differences identified by comparing the segmented versions of the first and second files on a line by line basis, sandwiching the erroneous segments between correct segments.

3. The method according to claim 2 wherein the sandwiching technique further includes merging together adjacent sandwich segments.

4. The method according to claim 3 wherein the segmenting text further includes inserting an end of line character.

5. The method according to claim 1 wherein the segmenting text further includes inserting an end of line character.

6. The method according to claim 1 further including displaying the sandwiched segments for review of an end user.

7. A system for comparing text in a first file to text in a second file comprising:

means for segmenting text to one word per line;

means for comparing segmented versions of the first and second files on a line by line basis;

means for sandwiching identification of differences between the first and second files with immediately adjacent correct segments.

8. The system according to claim 7 wherein the means for segmenting text further includes means for inserting an end of line character on each segmented line.

9. The system according to claim 7 further including means for displaying each sandwiched segment individually.

10. A method for identifying the location of missing text in a text file comprising:

creating a first text file from a source file;

creating a second text file from the source file;

comparing the first and second text files;

creating a result file of sandwich segments; and

displaying each sandwich segment separately toward facilitating review by an end user.

11. A method for expediting the correction of a source file comprising:

creating a first text file from a source file;

creating a second text file from a source file;

comparing the first and second text files;

creating a result file of sandwich segments; and

displaying each sandwich segment separately toward facilitating review by an end user.