Location History:
- Rozelle New South Wales, AU (2012)
- Abbotsford, AU (2014)
Company Filing History:
Years Active: 2012-2014
Title: Roger David Butler: Innovator in Document Authentication
Introduction
Roger David Butler is a notable inventor based in Abbotsford, Australia. He has made significant contributions to the field of document authentication, holding a total of 2 patents. His work focuses on methods that enhance the security and integrity of documents, particularly in detecting tampering.
Latest Patents
One of Roger's latest patents is titled "Dynamic thresholds for document tamper detection." This patent discloses a method for identifying potential tampering in a candidate document that may have content affected by noise. The method involves determining candidate content values for various sub-regions of the candidate document and comparing them to original content values from a corresponding original document. By analyzing the distribution of these values, the method can identify candidate content values that fall outside an expected range, indicating potential tampering.
Another significant patent is "Anti-tamper using barcode degradation." This method authenticates a document that includes both content and a barcode. It involves detecting barcode elements in a representation of the document and determining visual differences between these detected elements and their predetermined forms. By decoding the barcode to compare the first document with a second document, the method effectively authenticates the original document.
Career Highlights
Roger David Butler is currently employed at Canon Kabushiki Kaisha, a leading company in imaging and printing technology. His work at Canon has allowed him to develop innovative solutions that address critical issues in document security.
Collaborations
Roger has collaborated with notable coworkers, including Neil Yager and Junya Arakawa. Their combined expertise has contributed to the advancement of technologies in document authentication.
Conclusion
Roger David Butler's contributions to the field of document authentication through his innovative patents demonstrate his commitment to enhancing security measures. His work continues to influence the industry and pave the way for future advancements in document integrity.