发明名称 Hand held pen-size calculator
摘要 A hand-held pen size calculator having a resiliently mounted writing head for entering data as they are being written on a writing surface and a character transducer arranged for detecting the axial motion of the writing head and the pivotal movement of the calculator in two opposite senses as the data is being written. The apparatus permits storage of characters as written by the user.
申请公布号 US4241409(A) 申请公布日期 1980.12.23
申请号 US19780973616 申请日期 1978.12.27
申请人 NOLF, JEAN-MARIE 发明人 NOLF, JEAN-MARIE
分类号 G06K9/24;(IPC1-7):G06F3/03 主分类号 G06K9/24
代理机构 代理人
主权项
地址