The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2003
Filed:
Sep. 28, 1999
Teruyoshi Washizawa, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A list of data of a database arranged in an order of a value of each component of a vector is formed for each component. For each component sequentially selected from base indexes, a pointer indicating data in an ascending order of a difference between data in the list and a test data is updated. Whether an end condition is satisfied or not is judged from a difference of component value between the data indicated by the pointer and the test data. If the end condition is not satisfied, whether a rejection condition is satisfied or not is judged from a distance in a partial space between the data indicated by the pointer and the test data. If the rejection condition is not satisfied, a distance in a whole space between the data indicated by the pointer and the text data is calculated. A predetermined number of data pieces are retrieved in an ascending order of a calculated distance. In this manner, the predetermined number of data pieces having a high similarity to the test vector can be retrieved at high speed from data of a vector format in the database.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile