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:
Aug. 07, 2012
Filed:
Sep. 26, 2011
Sagnik Nandy, Los Gatos, CA (US);
Jonathon A. Vance, San Jose, CA (US);
Jan Matthias Ruhl, Mountain View, CA (US);
Sagnik Nandy, Los Gatos, CA (US);
Jonathon A. Vance, San Jose, CA (US);
Jan Matthias Ruhl, Mountain View, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
Methods, systems and apparatus, including computer program products, for enhancing query performance through fixed length hashing of multidimensional data. According to one method, a fixed length hash of a multidimensional data record is created where the hash has respective fixed length sections for each data dimension of the record being hashed. The composite fixed length hash is stored with a reference to the original data record to which it corresponds. Query parameters are hashed and compared to a corresponding section of the fixed length hash to determine a set of candidate records.