发明名称 INFORMATION RETRIEVAL DEVICE
摘要 PURPOSE:To make it possible to find a retrieval item when a video-head etc. stops by retrieving the retrieval contents at a TV picture on which characters etc. generated from a character pattern are displayed. CONSTITUTION:A starting key operation on a keyboard 3 transfers a video tape TV to a recording position of an index data ID and makes a VTR1 in a reproducing mode. After an index data and a character data are extracted from a video signal which is read out from a video tape by a sampling circuit 10, the extracted index data and character data are transferred to a control device 2 through a shift resister 11 and are written to a memory in the control device 2. Next, a character code stored at a memory is transferred to a CRT controller 12. A user searches a required item from the content list of a video tape displayed at a CRT picture and retrieves an item by inputting a number on the keyboard 3.
申请公布号 JPS61157192(A) 申请公布日期 1986.07.16
申请号 JP19840278453 申请日期 1984.12.28
申请人 RICOH CO LTD 发明人 FUKUOKA HIROKI
分类号 H04N5/91;G06F17/30 主分类号 H04N5/91
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