| 发明名称 | Determination apparatus for determining type of recording medium | ||
| 摘要 | A transmission unit transmits an ultrasonic wave by a drive signal being supplied to two terminals. A reception unit receives the ultrasonic wave transmitted from the transmission unit and to output a reception signal from two terminals in accordance with the received ultrasonic wave. A change unit changes a determination scheme for determining a type of a recording medium, based on information indicating a relation between a polar character of the transmission unit and a polar character of the reception unit, the information having been acquired from the reception signal. | ||
| 申请公布号 | US9372461(B2) | 申请公布日期 | 2016.06.21 |
| 申请号 | US201514847256 | 申请日期 | 2015.09.08 |
| 申请人 | CANON KABUSHIKI KAISHA | 发明人 | Yamamoto Tetsuya;Ishida Tsutomu |
| 分类号 | G03G15/00;G01N29/07;G01N29/24 | 主分类号 | G03G15/00 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. A determination apparatus comprising: a transmission unit having two terminals having a polar character and configured to transmit an ultrasonic wave by a drive signal being supplied to the two terminals; a reception unit having two terminals having a polar character and configured to receive the ultrasonic wave transmitted from the transmission unit and to output a reception signal from the two terminals in accordance with the received ultrasonic wave; and a change unit configured to change a determination scheme for determining a type of a recording medium, based on information indicating a relation between a polar character of the transmission unit and a polar character of the reception unit, the information having been acquired from the reception signal. | ||
| 地址 | Tokyo JP | ||