Microphone state detection circuitry and on -vehicle multimedia player

Microphone state detection circuitry and on -vehicle multimedia player

The embodiment of the utility model provides a microphone state detection circuitry and on -vehicle multimedia player relates to mobile unit technical field for detect the microphone state under the condition of not using internal integration IC. This circuit includes: a control unit, the 2nd the co...

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Hauptverfasser: WANG JINGKUN, XIONG XIANGYI
Format: Patent
Sprache:chi ; eng
Schlagworte:
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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creator WANG JINGKUN
XIONG XIANGYI
description The embodiment of the utility model provides a microphone state detection circuitry and on -vehicle multimedia player relates to mobile unit technical field for detect the microphone state under the condition of not using internal integration IC. This circuit includes: a control unit, the 2nd the control unit and voltage detection unit, a control unit is used for controlling mains voltage end andmicrophone and inserts switching on or breaking off of port under the control of control node's voltage, the 2nd the control unit is used for switching on or breaking off control node and first levelend under the control of the voltage of control voltage end, and voltage detection unit is used for the voltage of detection voltage sense terminal and confirms according to the voltage of voltage detecting end that the microphone inserts the state of port institute access microphone. The utility model discloses an embodiment is used for the microphone state to detect. 本实用新型的实施例提供种麦克风状态检测电路及车载多媒体播放器，涉及车载设备技术领域，用于在不使用内部集成IC
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This circuit includes: a control unit, the 2nd the control unit and voltage detection unit, a control unit is used for controlling mains voltage end andmicrophone and inserts switching on or breaking off of port under the control of control node's voltage, the 2nd the control unit is used for switching on or breaking off control node and first levelend under the control of the voltage of control voltage end, and voltage detection unit is used for the voltage of detection voltage sense terminal and confirms according to the voltage of voltage detecting end that the microphone inserts the state of port institute access microphone. The utility model discloses an embodiment is used for the microphone state to detect. 本实用新型的实施例提供种麦克风状态检测电路及车载多媒体播放器，涉及车载设备技术领域，用于在不使用内部集成IC</description><language>chi ; eng</language><subject>DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20181002&amp;DB=EPODOC&amp;CC=CN&amp;NR=207939738U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20181002&amp;DB=EPODOC&amp;CC=CN&amp;NR=207939738U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG JINGKUN</creatorcontrib><creatorcontrib>XIONG XIANGYI</creatorcontrib><title>Microphone state detection circuitry and on -vehicle multimedia player</title><description>The embodiment of the utility model provides a microphone state detection circuitry and on -vehicle multimedia player relates to mobile unit technical field for detect the microphone state under the condition of not using internal integration IC. 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subjects DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
title Microphone state detection circuitry and on -vehicle multimedia player
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