A/D CONVERSION CIRCUIT AND RADIATION IMAGE DIAGNOSTIC DEVICE
PROBLEM TO BE SOLVED: To provide an A/D conversion circuit capable of achieving the performance of an A/D converter having a wide dynamic range and the performance of a high-speed A/D converter capable of noise reduction, and a radiation image diagnostic device.SOLUTION: The A/D conversion circuit i...
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| creator | NANBU SHUYA NISHIJIMA TERU HASHIMOTO ATSUSHI MIYAMA KOICHI KANAMARU SHUN MATSUDA KEIJI UMEHARA TAKAYA SAGO TOMOHIDE |
| description | PROBLEM TO BE SOLVED: To provide an A/D conversion circuit capable of achieving the performance of an A/D converter having a wide dynamic range and the performance of a high-speed A/D converter capable of noise reduction, and a radiation image diagnostic device.SOLUTION: The A/D conversion circuit includes: a plurality of analog-to-digital converters which include a first analog-to-digital converter and a second analog-to-digital converter for converting an input single analog signal into a digital signal; and a processing circuit which selects and outputs the converted digital signal. The first analog-to-digital converter has a wider dynamic range than the second analog-to-digital converter, whereas the second analog-to-digital converter has a higher sampling frequency than the first analog-to-digital converter.SELECTED DRAWING: Figure 1
【課題】ダイナミックレンジの広いＡ／Ｄ変換器の性能と、ノイズを低減できる高速のＡ／Ｄ変換器の性能の両立を図ることができるＡ／Ｄ変換回路および放射線画像診断装置を提供する。【解決手段】本実施形態に係るＡ／Ｄ変換回路は、入力される１つのアナログ信号をデジタル信号に変換する、第１のアナログ−デジタル変換器と第２のアナログ−デジタル変換器とを含む複数のアナログ−デジタル変換器と、変換された前記デジタル信号を選択して出力する処理回路と、を備え、前記第１のアナログ−デジタル変換器は、前記第２のアナログ−デジタル変換器よりもダイナミックレンジが広く、前記第２のアナログ−デジタル変換器は、前記第１のアナログ−デジタル変換器よりもサンプリング周波数が高い。【選択図】 図１ |
| format | Patent |
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【課題】ダイナミックレンジの広いＡ／Ｄ変換器の性能と、ノイズを低減できる高速のＡ／Ｄ変換器の性能の両立を図ることができるＡ／Ｄ変換回路および放射線画像診断装置を提供する。【解決手段】本実施形態に係るＡ／Ｄ変換回路は、入力される１つのアナログ信号をデジタル信号に変換する、第１のアナログ−デジタル変換器と第２のアナログ−デジタル変換器とを含む複数のアナログ−デジタル変換器と、変換された前記デジタル信号を選択して出力する処理回路と、を備え、前記第１のアナログ−デジタル変換器は、前記第２のアナログ−デジタル変換器よりもダイナミックレンジが広く、前記第２のアナログ−デジタル変換器は、前記第１のアナログ−デジタル変換器よりもサンプリング周波数が高い。【選択図】 図１</description><language>eng ; jpn</language><subject>BASIC ELECTRONIC CIRCUITRY ; CODE CONVERSION IN GENERAL ; CODING ; DECODING ; DIAGNOSIS ; ELECTRICITY ; HUMAN NECESSITIES ; HYGIENE ; IDENTIFICATION ; MEDICAL OR VETERINARY SCIENCE ; SURGERY</subject><creationdate>2017</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=20170406&DB=EPODOC&CC=JP&NR=2017069854A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170406&DB=EPODOC&CC=JP&NR=2017069854A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NANBU SHUYA</creatorcontrib><creatorcontrib>NISHIJIMA TERU</creatorcontrib><creatorcontrib>HASHIMOTO ATSUSHI</creatorcontrib><creatorcontrib>MIYAMA KOICHI</creatorcontrib><creatorcontrib>KANAMARU SHUN</creatorcontrib><creatorcontrib>MATSUDA KEIJI</creatorcontrib><creatorcontrib>UMEHARA TAKAYA</creatorcontrib><creatorcontrib>SAGO TOMOHIDE</creatorcontrib><title>A/D CONVERSION CIRCUIT AND RADIATION IMAGE DIAGNOSTIC DEVICE</title><description>PROBLEM TO BE SOLVED: To provide an A/D conversion circuit capable of achieving the performance of an A/D converter having a wide dynamic range and the performance of a high-speed A/D converter capable of noise reduction, and a radiation image diagnostic device.SOLUTION: The A/D conversion circuit includes: a plurality of analog-to-digital converters which include a first analog-to-digital converter and a second analog-to-digital converter for converting an input single analog signal into a digital signal; and a processing circuit which selects and outputs the converted digital signal. The first analog-to-digital converter has a wider dynamic range than the second analog-to-digital converter, whereas the second analog-to-digital converter has a higher sampling frequency than the first analog-to-digital converter.SELECTED DRAWING: Figure 1
【課題】ダイナミックレンジの広いＡ／Ｄ変換器の性能と、ノイズを低減できる高速のＡ／Ｄ変換器の性能の両立を図ることができるＡ／Ｄ変換回路および放射線画像診断装置を提供する。【解決手段】本実施形態に係るＡ／Ｄ変換回路は、入力される１つのアナログ信号をデジタル信号に変換する、第１のアナログ−デジタル変換器と第２のアナログ−デジタル変換器とを含む複数のアナログ−デジタル変換器と、変換された前記デジタル信号を選択して出力する処理回路と、を備え、前記第１のアナログ−デジタル変換器は、前記第２のアナログ−デジタル変換器よりもダイナミックレンジが広く、前記第２のアナログ−デジタル変換器は、前記第１のアナログ−デジタル変換器よりもサンプリング周波数が高い。【選択図】 図１</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CODE CONVERSION IN GENERAL</subject><subject>CODING</subject><subject>DECODING</subject><subject>DIAGNOSIS</subject><subject>ELECTRICITY</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>IDENTIFICATION</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>SURGERY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBx1HdRcPb3C3MNCvb091Nw9gxyDvUMUXD0c1EIcnTxdAwBiXr6Orq7KgB57n7-wSGezgourmGezq48DKxpiTnFqbxQmptByc01xNlDN7UgPz61uCAxOTUvtSTeK8DIwNDcwMzSwtTE0ZgoRQAufym-</recordid><startdate>20170406</startdate><enddate>20170406</enddate><creator>NANBU SHUYA</creator><creator>NISHIJIMA TERU</creator><creator>HASHIMOTO ATSUSHI</creator><creator>MIYAMA KOICHI</creator><creator>KANAMARU SHUN</creator><creator>MATSUDA KEIJI</creator><creator>UMEHARA TAKAYA</creator><creator>SAGO TOMOHIDE</creator><scope>EVB</scope></search><sort><creationdate>20170406</creationdate><title>A/D CONVERSION CIRCUIT AND RADIATION IMAGE DIAGNOSTIC DEVICE</title><author>NANBU SHUYA ; NISHIJIMA TERU ; HASHIMOTO ATSUSHI ; MIYAMA KOICHI ; KANAMARU SHUN ; MATSUDA KEIJI ; UMEHARA TAKAYA ; SAGO TOMOHIDE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2017069854A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2017</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CODE CONVERSION IN GENERAL</topic><topic>CODING</topic><topic>DECODING</topic><topic>DIAGNOSIS</topic><topic>ELECTRICITY</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>IDENTIFICATION</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>SURGERY</topic><toplevel>online_resources</toplevel><creatorcontrib>NANBU SHUYA</creatorcontrib><creatorcontrib>NISHIJIMA TERU</creatorcontrib><creatorcontrib>HASHIMOTO ATSUSHI</creatorcontrib><creatorcontrib>MIYAMA KOICHI</creatorcontrib><creatorcontrib>KANAMARU SHUN</creatorcontrib><creatorcontrib>MATSUDA KEIJI</creatorcontrib><creatorcontrib>UMEHARA TAKAYA</creatorcontrib><creatorcontrib>SAGO TOMOHIDE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NANBU SHUYA</au><au>NISHIJIMA TERU</au><au>HASHIMOTO ATSUSHI</au><au>MIYAMA KOICHI</au><au>KANAMARU SHUN</au><au>MATSUDA KEIJI</au><au>UMEHARA TAKAYA</au><au>SAGO TOMOHIDE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A/D CONVERSION CIRCUIT AND RADIATION IMAGE DIAGNOSTIC DEVICE</title><date>2017-04-06</date><risdate>2017</risdate><abstract>PROBLEM TO BE SOLVED: To provide an A/D conversion circuit capable of achieving the performance of an A/D converter having a wide dynamic range and the performance of a high-speed A/D converter capable of noise reduction, and a radiation image diagnostic device.SOLUTION: The A/D conversion circuit includes: a plurality of analog-to-digital converters which include a first analog-to-digital converter and a second analog-to-digital converter for converting an input single analog signal into a digital signal; and a processing circuit which selects and outputs the converted digital signal. The first analog-to-digital converter has a wider dynamic range than the second analog-to-digital converter, whereas the second analog-to-digital converter has a higher sampling frequency than the first analog-to-digital converter.SELECTED DRAWING: Figure 1
【課題】ダイナミックレンジの広いＡ／Ｄ変換器の性能と、ノイズを低減できる高速のＡ／Ｄ変換器の性能の両立を図ることができるＡ／Ｄ変換回路および放射線画像診断装置を提供する。【解決手段】本実施形態に係るＡ／Ｄ変換回路は、入力される１つのアナログ信号をデジタル信号に変換する、第１のアナログ−デジタル変換器と第２のアナログ−デジタル変換器とを含む複数のアナログ−デジタル変換器と、変換された前記デジタル信号を選択して出力する処理回路と、を備え、前記第１のアナログ−デジタル変換器は、前記第２のアナログ−デジタル変換器よりもダイナミックレンジが広く、前記第２のアナログ−デジタル変換器は、前記第１のアナログ−デジタル変換器よりもサンプリング周波数が高い。【選択図】 図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING DIAGNOSIS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY |
| title | A/D CONVERSION CIRCUIT AND RADIATION IMAGE DIAGNOSTIC DEVICE |
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