METHOD AND APPARATUS FOR OVERRIDING A PTT SWITCH TO ACTIVATE A MICROPHONE

A method and apparatus for operating a bypass switch (124, 202) for bypassing a PTT switch (120) when a two-way radio device system (100) is to be operated in a hands-free mode responsive to a voltage applied to a microphone input line (114) in a pre-selected range.

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Bibliographic Details
Main Authors ABDULLAH MOHD FAISAL, YUSOF YUSASMADI
Format Patent
LanguageEnglish
Published 27.08.2015
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
TELEPHONIC COMMUNICATION
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:A method and apparatus for operating a bypass switch (124, 202) for bypassing a PTT switch (120) when a two-way radio device system (100) is to be operated in a hands-free mode responsive to a voltage applied to a microphone input line (114) in a pre-selected range.
Bibliography:Application Number: US201214424896