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:
Apr. 14, 1998

Filed:

Mar. 15, 1996
Applicant:
Inventor:

Ryuichi Kaneko, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
341 50 ; 370 29 ;
Abstract

There is provided an interface in which an external connection connector can be used in common to signal conversion circuits when V24/V28 and V35 interfaces recommended by CCITT are used in common, so that the number of parts can be reduced and the sized can be reduced. A V24/V28 interface signal is utilized for part of the V35 interface so that part of the interface conversion circuit may be used in common, and either one of a V24/V28 exclusive conversion unit and a V35 exclusive conversion unit is selected by means of a switch. A connector in the form of an RS232C is used. A V35 exclusive signal is assigned to a pin which is not used when the interface converter is used as the V24/V28 interface but the connector is connected to a V35 connector through a conversion cable when the interface converter is used as the V35 interface.


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