Mini B-CAS card detection circuit and device
The utility model discloses a mini B-CAS card detection circuit and device, and the circuit comprises a card slot, and the mini B-CAS card detection circuit also comprises a detection module, a main control module, a voltage reduction module, and a comparison module. The detection module detects the...
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| creator | HAN WEIWEI ZHANG YOUJIN SHEN WENZHAO WANG JIANG LIN SONGCHUAN LI YOUFENG RAN JIE |
| description | The utility model discloses a mini B-CAS card detection circuit and device, and the circuit comprises a card slot, and the mini B-CAS card detection circuit also comprises a detection module, a main control module, a voltage reduction module, and a comparison module. The detection module detects the level of the card slot detection pin and transmits the level to the main control module, and meanwhile, the detection module outputs an enable signal to the voltage reduction module when the level of the card slot detection pin is high; the voltage reduction module supplies power to the card slot power supply pin and provides a first comparison voltage for the comparison module; the comparison module generates a second comparison voltage, compares the second comparison voltage with the first comparison voltage, and provides a detection level for the main control module according to a comparison result; and when the detection pin of the card slot is at a high level and the detection level is at a low level, the mai |
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The detection module detects the level of the card slot detection pin and transmits the level to the main control module, and meanwhile, the detection module outputs an enable signal to the voltage reduction module when the level of the card slot detection pin is high; the voltage reduction module supplies power to the card slot power supply pin and provides a first comparison voltage for the comparison module; the comparison module generates a second comparison voltage, compares the second comparison voltage with the first comparison voltage, and provides a detection level for the main control module according to a comparison result; and when the detection pin of the card slot is at a high level and the detection level is at a low level, the mai</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDxzczLVHDSdXYMVkhOLEpRSEktSU0uyczPU0jOLEouzSxRSMwDiZZlJqfyMLCmJeYUp_JCaW4GJTfXEGcP3dSC_PjU4oLE5NS81JJ4Zz8jQ1NzIwtzE5PQUGOiFAEAW1MpeQ</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>HAN WEIWEI</creator><creator>ZHANG YOUJIN</creator><creator>SHEN WENZHAO</creator><creator>WANG JIANG</creator><creator>LIN SONGCHUAN</creator><creator>LI YOUFENG</creator><creator>RAN JIE</creator><scope>EVB</scope></search><sort><creationdate>20220201</creationdate><title>Mini B-CAS card detection circuit and device</title><author>HAN WEIWEI ; ZHANG YOUJIN ; SHEN WENZHAO ; WANG JIANG ; LIN SONGCHUAN ; LI YOUFENG ; RAN JIE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN215728744UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>HAN WEIWEI</creatorcontrib><creatorcontrib>ZHANG YOUJIN</creatorcontrib><creatorcontrib>SHEN WENZHAO</creatorcontrib><creatorcontrib>WANG JIANG</creatorcontrib><creatorcontrib>LIN SONGCHUAN</creatorcontrib><creatorcontrib>LI YOUFENG</creatorcontrib><creatorcontrib>RAN JIE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HAN WEIWEI</au><au>ZHANG YOUJIN</au><au>SHEN WENZHAO</au><au>WANG JIANG</au><au>LIN SONGCHUAN</au><au>LI YOUFENG</au><au>RAN JIE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Mini B-CAS card detection circuit and device</title><date>2022-02-01</date><risdate>2022</risdate><abstract>The utility model discloses a mini B-CAS card detection circuit and device, and the circuit comprises a card slot, and the mini B-CAS card detection circuit also comprises a detection module, a main control module, a voltage reduction module, and a comparison module. The detection module detects the level of the card slot detection pin and transmits the level to the main control module, and meanwhile, the detection module outputs an enable signal to the voltage reduction module when the level of the card slot detection pin is high; the voltage reduction module supplies power to the card slot power supply pin and provides a first comparison voltage for the comparison module; the comparison module generates a second comparison voltage, compares the second comparison voltage with the first comparison voltage, and provides a detection level for the main control module according to a comparison result; and when the detection pin of the card slot is at a high level and the detection level is at a low level, the mai</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Mini B-CAS card detection circuit and device |
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