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:
Sep. 08, 1998

Filed:

Feb. 23, 1996
Applicant:
Inventors:

Seijiro Ishizuka, Tokyo, JP;

Hidetoshi Inoue, Tokyo, JP;

Morihiko Hayashi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379-1 ; 379 37 ; 379 45 ; 455 671 ; 455 677 ; 455421 ; 455422 ; 455423 ;
Abstract

When a portable terminal apparatus such as a radiotelephone malfumctions, such status can be detected, and it is diagnosed whether the portable terminal apparatus is out of order. Thus, the portable terminal apparatus can be maintained efficiently. The portable terminal apparatus includes a reception state detecting unit for analyzing a reception state of a receiving unit, and a display unit for displaying a message on the basis of an analyzed state at the reception state detecting unit, thereby when a failure of connection or maintenance of the communication network is detected, a predetermined message is displayed on the display unit. Further, the portable terminal apparatus includes a memory for storing log data concerning communication with a base station when the control circuitry detects a failure of communication.


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