SYSTEM UND VERFAHREN ZUR DOPPELTENVIELFACHFREQUENZDETEKTION DURCH VERWENDUNG VON VARIABLEN RAHMENLÄNGEN

An improved dual tone multifrequency (DTMF) signal detector which uses the Goertzel DFT algorithm and which utilizes variable or differing frame widths that are frequency dependent for improved detection and reduced error. The DTMF detector includes a codec receiver which receives signals from the t...

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Bibliographic Details
Main Authors XIE, ZHENG-YI, BARTKOWIAK, G
Format Patent
LanguageGerman
Published 19.09.2002
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
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