Patent · US Expired

Reduced keypad entry apparatus and method

US6005498A · kind A · utility

57Cited by

8References

17Claims

0Family size

Assignee

Motorola, Inc. · US

Inventors

Deshan Yang · Naperville, US
Jianlin Chen · Dongguan, CN
Changzheng Kang · Hainesville, US
Wayne Huang · Alhambra, US

Key dates

Filing date	Oct 29, 1997
Grant date	Dec 21, 1999
Priority date	—
Expiry date	Oct 29, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/018
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A reduced keypad entry method and apparatus provides a method and apparatus for entry of words using a small number of keypresses on a reduced keypad (210) having multiple symbols associated with at least one key. The method and apparatus uses validity rules (242) to rearrange the order of presentation of the multiple alphabet symbols associated with a single key on the keypad (210), automatically eliminates the presentation of invalid alphabet symbols, and allows the entry of additional information such as a tone markers. Additionally, the method and apparatus uses a dictionary (244) to convert phonetic syllables into Chinese characters.

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