Method and apparatus for operating accessory interface functions over a single signal

An interface (100) is provided between an accessory (102) and a radio (104) to enable three functions over a single signal line (140) thereby minimizing pin count in a connector (112). The functions of accessory detect, one-wire memory and accessory PTT press are controlled over the single signal li...

Full description

Saved in:
Bibliographic Details
Main Author HARMKE, CHARLES B
Format Patent
LanguageEnglish
Published 23.07.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION
Online AccessGet full text

Cover

More Information
Summary:An interface (100) is provided between an accessory (102) and a radio (104) to enable three functions over a single signal line (140) thereby minimizing pin count in a connector (112). The functions of accessory detect, one-wire memory and accessory PTT press are controlled over the single signal line (140) through the use of two comparators (116, 118) and two voltage dividers (106, 108, 110).
Bibliography:Application Number: AU20130281111