Patent · US Expired

Method and apparatus for a file format for storing spreadsheet compactly

US7509571B2 · kind B2 · utility

0Cited by
15References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 3, 2001
Grant dateMar 24, 2009
Priority date
Expiry dateJun 4, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F40/18
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Methods and Systems in accordance with the present invention provide a file format for storing spreadsheets compactly on PDAs. PDAs only contain a limited amount of computer memory due to their small size and processing ability. To reduce memory constraints caused by PDA spreadsheet applications, the present invention reduces memory allocated for file storage by optimizing the compression of individual spreadsheet files within a database record storage system. This method and system in accordance with the present invention uses a collection of records to represent a spreadsheet file.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.