Semiconductor integrated circuit and noncontact information system including it
The present invention extends the reading range between a contactless type information medium (semiconductor integrated circuit) and a reader/writer, which exchanges data in contactless communications with the contactless type information medium, and enables a stable data exchange even if the power...
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| creator | SUMI TATSUMI NAKANE GEORGE |
| description | The present invention extends the reading range between a contactless type information medium (semiconductor integrated circuit) and a reader/writer, which exchanges data in contactless communications with the contactless type information medium, and enables a stable data exchange even if the power supply voltage is lowered when data is returned from the contactless type information medium to the reader/writer. Specifically, when data is returned from the contactless type information medium, the data to be returned is held in the logic circuit section 200 capable of operating at a lower voltage than the non-volatile memory circuit section 300 , and the reset detection lower limit voltage to be used by the reset generating circuit 160 during the data-returning period is set to be lower than that during periods other than the data-returning period. |
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Specifically, when data is returned from the contactless type information medium, the data to be returned is held in the logic circuit section 200 capable of operating at a lower voltage than the non-volatile memory circuit section 300 , and the reset detection lower limit voltage to be used by the reset generating circuit 160 during the data-returning period is set to be lower than that during periods other than the data-returning period.</description><language>eng</language><subject>BOOK COVERS ; BOOKBINDING ; CALCULATING ; COMPUTING ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; COUNTING ; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ; FILES ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; HANDLING RECORD CARRIERS ; LOOSE LEAVES ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; MOVABLE-STRIP WRITING OR READING APPARATUS ; PERFORMING OPERATIONS ; PHYSICS ; PRESENTATION OF DATA ; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES ; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR ; RECOGNITION OF DATA ; RECORD CARRIERS ; REGULATING ; SPECIAL PRINTED MATTER ; TRANSPORTING</subject><creationdate>2007</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=20070816&DB=EPODOC&CC=US&NR=2007188297A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070816&DB=EPODOC&CC=US&NR=2007188297A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUMI TATSUMI</creatorcontrib><creatorcontrib>NAKANE GEORGE</creatorcontrib><title>Semiconductor integrated circuit and noncontact information system including it</title><description>The present invention extends the reading range between a contactless type information medium (semiconductor integrated circuit) and a reader/writer, which exchanges data in contactless communications with the contactless type information medium, and enables a stable data exchange even if the power supply voltage is lowered when data is returned from the contactless type information medium to the reader/writer. Specifically, when data is returned from the contactless type information medium, the data to be returned is held in the logic circuit section 200 capable of operating at a lower voltage than the non-volatile memory circuit section 300 , and the reset detection lower limit voltage to be used by the reset generating circuit 160 during the data-returning period is set to be lower than that during periods other than the data-returning period.</description><subject>BOOK COVERS</subject><subject>BOOKBINDING</subject><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>CONTROL OR REGULATING SYSTEMS IN GENERAL</subject><subject>CONTROLLING</subject><subject>COUNTING</subject><subject>DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR</subject><subject>FILES</subject><subject>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</subject><subject>HANDLING RECORD CARRIERS</subject><subject>LOOSE LEAVES</subject><subject>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</subject><subject>MOVABLE-STRIP WRITING OR READING APPARATUS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>PRESENTATION OF DATA</subject><subject>PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES</subject><subject>PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR</subject><subject>RECOGNITION OF DATA</subject><subject>RECORD CARRIERS</subject><subject>REGULATING</subject><subject>SPECIAL PRINTED MATTER</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQgOEsDqK-Q8BZaOvQdhRR3ByqcwmXazlo7kpyGXx7M_gATj_8fFvzHDAQCPsMKtESK87RKXoLFCGTWsfesnAx6kCLmCQGpyRs0ycphrJgyZ54tqR7s5nckvDw684c77fX9XHCVUZMqwNk1PE9NFXV1l3X9O2lPv-nvspQOQo</recordid><startdate>20070816</startdate><enddate>20070816</enddate><creator>SUMI TATSUMI</creator><creator>NAKANE GEORGE</creator><scope>EVB</scope></search><sort><creationdate>20070816</creationdate><title>Semiconductor integrated circuit and noncontact information system including it</title><author>SUMI TATSUMI ; NAKANE GEORGE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2007188297A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>BOOK COVERS</topic><topic>BOOKBINDING</topic><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>CONTROL OR REGULATING SYSTEMS IN GENERAL</topic><topic>CONTROLLING</topic><topic>COUNTING</topic><topic>DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR</topic><topic>FILES</topic><topic>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</topic><topic>HANDLING RECORD CARRIERS</topic><topic>LOOSE LEAVES</topic><topic>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</topic><topic>MOVABLE-STRIP WRITING OR READING APPARATUS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>PRESENTATION OF DATA</topic><topic>PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES</topic><topic>PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR</topic><topic>RECOGNITION OF DATA</topic><topic>RECORD CARRIERS</topic><topic>REGULATING</topic><topic>SPECIAL PRINTED MATTER</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SUMI TATSUMI</creatorcontrib><creatorcontrib>NAKANE GEORGE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUMI TATSUMI</au><au>NAKANE GEORGE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Semiconductor integrated circuit and noncontact information system including it</title><date>2007-08-16</date><risdate>2007</risdate><abstract>The present invention extends the reading range between a contactless type information medium (semiconductor integrated circuit) and a reader/writer, which exchanges data in contactless communications with the contactless type information medium, and enables a stable data exchange even if the power supply voltage is lowered when data is returned from the contactless type information medium to the reader/writer. Specifically, when data is returned from the contactless type information medium, the data to be returned is held in the logic circuit section 200 capable of operating at a lower voltage than the non-volatile memory circuit section 300 , and the reset detection lower limit voltage to be used by the reset generating circuit 160 during the data-returning period is set to be lower than that during periods other than the data-returning period.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BOOK COVERS BOOKBINDING CALCULATING COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HANDLING RECORD CARRIERS LOOSE LEAVES MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS REGULATING SPECIAL PRINTED MATTER TRANSPORTING |
| title | Semiconductor integrated circuit and noncontact information system including it |
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