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:
Jul. 14, 1998

Filed:

Apr. 28, 1997
Applicant:
Inventor:

Toshiaki Koue, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379361 ; 379 93 ; 379418 ;
Abstract

A communication device, such as a telephone or a facsimile device, includes an input device for inputting code information for a call to be transmitted through a communication network, a transmitting device for transmitting dual-tone multiple frequency (DTMF) signals to the communication network according to the code information, and a transmission control device for controlling transmission parameters of a DTMF signal. At least one of a plurality of parameters, including signal transmission time, signal pause time, and signal transmission level, is made different by the transmission control device for a DTMF signal transmitted during the call by the transmitting device after the execution of a dialing input from the communication device to the communication network.


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