20030038787-A1 is referenced by 9 patents.

A ten-key keypad for inputting numerals mounted on a portable telephone T is adapted to a zoom function and a scroll function for operating an image displayed on a display. The user can use the keys of the ten-key keypad to select the mode in which case the keys also serve as image operation keys.

Title
Method of using ten-key keypad
Application Number
10/212794
Publication Number
20030038787
Application Date
August 7, 2002
Publication Date
February 27, 2003
Inventor
Sumio Nishiyama
Agent
Arent Fox Kintner Plotkin & Kahn Pllc
DC, US
Assignee
Pioneer Corporation
IPC
G09G 05/00
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