Fingerprint information detection circuit
The present invention relates to the chip design, and discloses a fingerprint information detection circuit. The fingerprint information detection circuit comprises a reset unit, a feedback unit, an amplification unit and a source follower unit, the reset unit is connected with the feedback unit and...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | CHENG TAIYI ZHAO XIANGGUI |
| description | The present invention relates to the chip design, and discloses a fingerprint information detection circuit. The fingerprint information detection circuit comprises a reset unit, a feedback unit, an amplification unit and a source follower unit, the reset unit is connected with the feedback unit and the amplification unit, the feedback unit is connected with the amplification unit, and the amplification unit is connected with the source follower unit. A reset pipe arranged in the reset unit stores charges when being conducted and resets the feedback unit, when the reset pipe is cut off, the stored charges are injected to the feedback unit and the amplification unit, and the feedback unit receives the charges and outputs a generated second voltage signal to the source follower unit when detecting the fingerprint information; the amplification unit amplifies the received signal and then outputs the signal to the source follower unit, the source follower unit carries out the level translation on the received signal and then outputs a first voltage signal, and the first voltage signal carries the detected fingerprint information. According to the present invention, the chip occupation area of the circuit is reduced, and the chip cost is saved. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN104866803A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN104866803A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN104866803A3</originalsourceid><addsrcrecordid>eNrjZNB0y8xLTy0qKMrMK1HIzEvLL8pNLMnMz1NISS1JTQazkjOLkkszS3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GBiYWZmYWBsaMxMWoASNApWA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Fingerprint information detection circuit</title><source>esp@cenet</source><creator>CHENG TAIYI ; ZHAO XIANGGUI</creator><creatorcontrib>CHENG TAIYI ; ZHAO XIANGGUI</creatorcontrib><description>The present invention relates to the chip design, and discloses a fingerprint information detection circuit. The fingerprint information detection circuit comprises a reset unit, a feedback unit, an amplification unit and a source follower unit, the reset unit is connected with the feedback unit and the amplification unit, the feedback unit is connected with the amplification unit, and the amplification unit is connected with the source follower unit. A reset pipe arranged in the reset unit stores charges when being conducted and resets the feedback unit, when the reset pipe is cut off, the stored charges are injected to the feedback unit and the amplification unit, and the feedback unit receives the charges and outputs a generated second voltage signal to the source follower unit when detecting the fingerprint information; the amplification unit amplifies the received signal and then outputs the signal to the source follower unit, the source follower unit carries out the level translation on the received signal and then outputs a first voltage signal, and the first voltage signal carries the detected fingerprint information. According to the present invention, the chip occupation area of the circuit is reduced, and the chip cost is saved.</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; HANDLING RECORD CARRIERS ; PHYSICS ; PRESENTATION OF DATA ; RECOGNITION OF DATA ; RECORD CARRIERS</subject><creationdate>2015</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&date=20150826&DB=EPODOC&CC=CN&NR=104866803A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150826&DB=EPODOC&CC=CN&NR=104866803A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHENG TAIYI</creatorcontrib><creatorcontrib>ZHAO XIANGGUI</creatorcontrib><title>Fingerprint information detection circuit</title><description>The present invention relates to the chip design, and discloses a fingerprint information detection circuit. The fingerprint information detection circuit comprises a reset unit, a feedback unit, an amplification unit and a source follower unit, the reset unit is connected with the feedback unit and the amplification unit, the feedback unit is connected with the amplification unit, and the amplification unit is connected with the source follower unit. A reset pipe arranged in the reset unit stores charges when being conducted and resets the feedback unit, when the reset pipe is cut off, the stored charges are injected to the feedback unit and the amplification unit, and the feedback unit receives the charges and outputs a generated second voltage signal to the source follower unit when detecting the fingerprint information; the amplification unit amplifies the received signal and then outputs the signal to the source follower unit, the source follower unit carries out the level translation on the received signal and then outputs a first voltage signal, and the first voltage signal carries the detected fingerprint information. According to the present invention, the chip occupation area of the circuit is reduced, and the chip cost is saved.</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>HANDLING RECORD CARRIERS</subject><subject>PHYSICS</subject><subject>PRESENTATION OF DATA</subject><subject>RECOGNITION OF DATA</subject><subject>RECORD CARRIERS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB0y8xLTy0qKMrMK1HIzEvLL8pNLMnMz1NISS1JTQazkjOLkkszS3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GBiYWZmYWBsaMxMWoASNApWA</recordid><startdate>20150826</startdate><enddate>20150826</enddate><creator>CHENG TAIYI</creator><creator>ZHAO XIANGGUI</creator><scope>EVB</scope></search><sort><creationdate>20150826</creationdate><title>Fingerprint information detection circuit</title><author>CHENG TAIYI ; ZHAO XIANGGUI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN104866803A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>HANDLING RECORD CARRIERS</topic><topic>PHYSICS</topic><topic>PRESENTATION OF DATA</topic><topic>RECOGNITION OF DATA</topic><topic>RECORD CARRIERS</topic><toplevel>online_resources</toplevel><creatorcontrib>CHENG TAIYI</creatorcontrib><creatorcontrib>ZHAO XIANGGUI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHENG TAIYI</au><au>ZHAO XIANGGUI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fingerprint information detection circuit</title><date>2015-08-26</date><risdate>2015</risdate><abstract>The present invention relates to the chip design, and discloses a fingerprint information detection circuit. The fingerprint information detection circuit comprises a reset unit, a feedback unit, an amplification unit and a source follower unit, the reset unit is connected with the feedback unit and the amplification unit, the feedback unit is connected with the amplification unit, and the amplification unit is connected with the source follower unit. A reset pipe arranged in the reset unit stores charges when being conducted and resets the feedback unit, when the reset pipe is cut off, the stored charges are injected to the feedback unit and the amplification unit, and the feedback unit receives the charges and outputs a generated second voltage signal to the source follower unit when detecting the fingerprint information; the amplification unit amplifies the received signal and then outputs the signal to the source follower unit, the source follower unit carries out the level translation on the received signal and then outputs a first voltage signal, and the first voltage signal carries the detected fingerprint information. According to the present invention, the chip occupation area of the circuit is reduced, and the chip cost is saved.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_CN104866803A |
| source | esp@cenet |
| subjects | CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS |
| title | Fingerprint information detection circuit |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-21T05%3A09%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=CHENG%20TAIYI&rft.date=2015-08-26&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN104866803A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |