{"created":"2021-03-01T06:51:37.618134+00:00","id":32903,"links":{},"metadata":{"_buckets":{"deposit":"1c572e61-d60d-4afb-8850-f02886202fd7"},"_deposit":{"id":"32903","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32903"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032903","sets":["80:4535:4777:4785","9:504:4538:4779:4786"]},"author_link":["128309","128310","128311","128312","128305","128306","128307","128308"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"ADPCM方式を用いたマイクロ・プロセッサー制御,大容量ハイドロフォン付きデジタル海底地震計"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1985-09-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"37","bibliographicPageStart":"23","bibliographicVolumeNumber":"60","bibliographic_titles":[{"bibliographic_title":"東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A DOBSH (Digital Ocean Bottom Seismometer and Hydrophone) and PDER (Portable Digital Event Recorder) have been newly developed. Main features are : storage of a large number of events, namely, 750 events on 4 channels, 2-minutes each and 100 Hz sampling rate ; including ADPCM (Adaptive Differential Pulse Code Modulation) speech synthesis ; a long (4 minutes max. on 4 channels) buffer size for the pre-event-delay using two 8 bit CMOS micro-processors. Events are identified by the event triggering algorithm. 100 Hz or 200 Hz samplings are used. On collecting data, the length of one sampling is compressed from 12 bit to 4 bit by ADPCM-IC and the compressed data are stored on digital tape. Records on the tape are synthesized by ADPCM-IC, or soft-ware on a mini-computer. By use of the ADPCM method, the total amount of data that can be put on a tape is practically increased fourfold. One cartridge tape (555-feet tape length) can store 72 MB of data when the data are synthesized. The time information is from a clock processor which can be adjusted at any time by a one minute pulse supplied from a precision clock or a 40 kHz standard time radio. Two field experiments showed the DOBSH worked correctly and proved its usefulness.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"128309","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kasahara, Junzo"}]},{"nameIdentifiers":[{"nameIdentifier":"128310","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Takahashi, Masayoshi"}]},{"nameIdentifiers":[{"nameIdentifier":"128311","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Matsubara, Tadayasu"}]},{"nameIdentifiers":[{"nameIdentifier":"128312","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Komiya, Mitsunobu"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000032903","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"453","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute, University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学地震研究所"},{"subitem_text_value":"海外物産株式会社"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"笠原, 順三"}],"nameIdentifiers":[{"nameIdentifier":"128305","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"高橋, 正義"}],"nameIdentifiers":[{"nameIdentifier":"128306","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松原, 忠泰"}],"nameIdentifiers":[{"nameIdentifier":"128307","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小宮, 光昇"}],"nameIdentifiers":[{"nameIdentifier":"128308","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-26"}],"displaytype":"detail","filename":"ji0601002.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0601002.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32903/files/ji0601002.pdf"},"version_id":"4a258da3-ec76-411d-b47a-f33145b7bf6e"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Mass Storage Digital Ocean Bottom Seismometer and Hydrophone (DOBSH) Controlled by Micro-processors Using ADPCM Voice Synthesizing","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Mass Storage Digital Ocean Bottom Seismometer and Hydrophone (DOBSH) Controlled by Micro-processors Using ADPCM Voice Synthesizing","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["4785","4786"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"32903","relation_version_is_last":true,"title":["Mass Storage Digital Ocean Bottom Seismometer and Hydrophone (DOBSH) Controlled by Micro-processors Using ADPCM Voice Synthesizing"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:08:49.026918+00:00"}