The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 13, 2003

Filed:

Nov. 24, 1999
Applicant:
Inventor:

Katsuhiro Otsuka, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/00 ; H03K 1/794 ;
U.S. Cl.
CPC ...
H04M 1/00 ; H03K 1/794 ;
Abstract

A portable telephone having a ten-key pad that allows input of a plurality of kinds of characters is disclosed. Each of the keys of the ten-key pad has a plurality of contact points having a corresponding position with respect to the key, at least one of the contact points being selected depending on which position of the key is pressed, another position of the key being determined by pressing all of the contact points simultaneously. Each key preferably has five positions. A table correlates each position of the key and an individual character of a selected type of characters. Input of an individual character depends on a pressed position of the key correlated by the table to a pressed key of the ten-key pad.


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