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:
Mar. 08, 2016
Filed:
Mar. 07, 2003
Hannu Toivonen, Helsinki, FI;
Antti Sorvari, Itäsalmi, FI;
Markus Kähäri, Helsinki, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
A memory efficient method and electronic device for counting frequencies of various events. The structure for storing frequency data comprises primary () and secondary () storages which contain frequency data () in different levels of detail. The primary storage () is a detailed storage comprising both event type and count information units in a fully restorable form. The secondary storage () is targeted for more infrequent events with lower level of detail and constructed as an array of count values addressed by a hash function using event type as an input. Another option is to derive a shortened ID from the event type by utilizing a hash function and exploit the ID as an addressing key for the corresponding count. Events are moved between primary () and secondary () storages depending on the detected event type frequencies. The invention is utilized in a recommendation engine for grading and sorting bookmarks stored in browsers for accessing the Internet.