Patent · US Active

Method, apparatus, and computer program product for written mathematical expression analysis

US9047267B2 · kind B2 · utility

4Cited by

2References

17Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Xiaohui Xie · Beijing, CN
Yanming Zou · Beijing, CN
Yingfei Liu · Beijing, CN
Kongqiao Wang · Helsinki, FI

Key dates

Filing date	Apr 29, 2009
Grant date	Jun 2, 2015
Priority date	—
Expiry date	Dec 11, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06V30/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Various methods for written mathematical expression analysis are provided. One method may include receiving written input where the written input is representative of a mathematical expression. The method may also include analyzing the written input to identify at least one operator and at least one operand and constructing an expression tree based at least in part on predefined symbol relationships, the at least one operator, and the at least one operand. Similar apparatuses and computer program products are also provided.

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