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:
Apr. 22, 2014
Filed:
Jun. 30, 2004
Huican Zhu, San Jose, CA (US);
Maximilian Ibel, Pfaeffikon, CH;
Anurag Acharya, Campbell, CA (US);
Howard Bradley Gobioff, San Francisco, CA (US);
Huican Zhu, San Jose, CA (US);
Maximilian Ibel, Pfaeffikon, CH;
Anurag Acharya, Campbell, CA (US);
Howard Bradley Gobioff, San Francisco, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
A search engine crawler includes a scheduler for determining which documents to download from their respective host servers. Some documents, known to be stable based on one or more record from prior crawls, are reused from a document repository. A reuse flag is set in a scheduler record that also contains a document identifier, the reuse flag indicating whether the document should be retrieved from a first database, such as the World Wide Web, or a second database, such as a document repository. A set of such scheduler records are used during a crawl by the search engine crawler to determine which database to use when retrieving the documents identified in the scheduler records.