Patent · US Expired

Split Keyboard

US7489301B2 · kind B2 · utility

15Cited by
15References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 15, 2004
Grant dateFeb 10, 2009
Priority date
Expiry dateMar 6, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F1/1686
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A keyboard includes a plurality of keys associated with alphanumeric characters including the letters A-Z and at least the numbers 1-9. The keys are split into a left side section and a right side section. The left side section is oriented at least partially above the right side section, or the right side section is oriented at least partially above the left side section. A mobile communication device includes the keyboard. A method for inputting alphanumeric characters into a mobile communication device is also provided.

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