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:
Nov. 24, 2015
Filed:
Mar. 31, 2011
Daniel E. Rose, Cupertino, CA (US);
Alexander A. Stepanov, Palo Alto, CA (US);
Anil Ramesh Gangolli, Palo Alto, CA (US);
Paramjit S. Oberoi, Mountain View, CA (US);
Ryan Jacob Ernst, Sunnyvale, CA (US);
Daniel E. Rose, Cupertino, CA (US);
Alexander A. Stepanov, Palo Alto, CA (US);
Anil Ramesh Gangolli, Palo Alto, CA (US);
Paramjit S. Oberoi, Mountain View, CA (US);
Ryan Jacob Ernst, Sunnyvale, CA (US);
A9.com, Inc., Palo Alto, CA (US);
Abstract
Embodiments provide methods and systems for encoding and decoding variable-length data, which may include methods for encoding and decoding search engine posting lists. Embodiments may include different encoding formats including group unary, packed unary, and/or packed binary formats. Some embodiments may utilize single instruction multiple data (SIMD) instructions that may perform a parallel shuffle operation on encoded data as part of the decoding processes. Some embodiments may utilize lookup tables to determine shuffle sequences and/or masks and/or shifts to be utilized in the decoding processes. Some embodiments may utilize hybrid formats.