Mobile Telephone, And Mobile Information System

Abstract

A user enters a numeric string on a standby screen of a cellular telephone (1), and then presses a predetermined function key, the numeric string being obtained by numerical conversion of a keyword related to a piece of registration information, e.g. a destination e-mail address, in accordance with an assignment relationship between characters and numerical keys. In the cellular telephone having recognized the entry of the numeric string and the pressing of the predetermined function key, a database is searched by using as a key the entered numeric string or a character string obtained by character conversion of the entered numeric string in accordance with the above-mentioned assignment relationship, and e-mail destination candidates associated with the numeric string or the character string are extracted and displayed on a display. The user selects a desired destination from among the candidates, whereby an e-mail destination address is selected and called up.

Description

TECHNICAL FIELD [0001] The present invention is an invention relating to a personal digital assistant which stores therein registration information including e-mail addresses, telephone numbers and the like and which allows the registration information to be called up and used as appropriate and, more particularly, to a cellular telephone. BACKGROUND ART [0002] As is well known in the art, cellular telephones which have exhibited a rapid proliferation in recent years have not only a function merely as mobile or portable telephones but also a function as mobile terminal devices. Specifically, it is possible to connect to the Internet through a cellular telephone, and there is a widespread proliferation of sending and receiving pieces of e-mail by using a cellular telephone (See Patent Document 1 as an example). Cellular telephones themselves become more sophisticated in functionality, and various settings of cellular telephones can be made to suit the preferences of users. [0003] For...

AI Technical Summary

Benefits of technology

[0008] A user can easily call up a desired piece of registration information only by entering a relatively short numeric string obtained by the numerical conversion of the keyword related to the desired piece of registration information in accordance with the assignment relationship.

[0010] A user can easily call up a desired piece of registration information only by entering a relatively short numeric string obtained by the numerical conversion of the keyword related to the desired piece of registration information in accordance with the assignment relationship.

[0012] It is therefore an object of the present invention to provide a cellular telephone and a personal digital assistant which allow registration information to be easily called up.

Problems solved by technology

However, the number of dial keys that can be arranged on the cellular telephone is limited to approximately twenty at most because of size limitations, and the user manipulates the approximately twenty keys to make a selection from among various pieces of registration information and to set the various pieces of registration information.

Thus, the operability of cellular telephones is much inferior than that of personal computers and the like each having a keyboard and a mouse, and there has been a problem such that the more sophisticated the functionality of cellular telephones becomes, the more cumbersome the operability for calling up the registration information inevitably becomes.

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