发明名称 RECORD CHECKING CIRCUIT OF ELECTRONIC CAMERA
摘要 PURPOSE:To confirm a recording result without reproducing it by a reproducing device, by adding an error detecting circuit to a recording device, and displaying whether recording is executed exactly or not, or raising an alarm. CONSTITUTION:A signal of an image pickup device 1 is sampled by one frame portion, is amplified by a recording amplifier 3, and thereafter, is recorded by a recording magnetic head 4. Subsequently, an output of a head 7 is amplified by a reproducing amplifier 9 and is inputted to a signal processing circuit 10. This signal is displayed on a display 13 of an electronic view finder having an afterglow property or a liquid crystal, etc. As for these displays, it is necessary to make it as small as possible in order to make a camera small-sized and light- weight, for instance, it is desirable to use a liquid crystal whose number of picture elements in the horizontal and vertical directions is reduced to 1/N. Also, an output of the signal processing circuit 10 is led to an error detecting circuit 14 and counted, and when its counting value becomes below a set value, a built-in LED is made to emit light.
申请公布号 JPS58197971(A) 申请公布日期 1983.11.17
申请号 JP19820079966 申请日期 1982.05.14
申请人 HITACHI SEISAKUSHO KK 发明人 IZUMIDA MORIJI;AKIYAMA TOSHIYUKI;SATOU KAZUHIRO;NAGAHARA SHIYUUSAKU;KITA YASUHIRO
分类号 G11B33/10;H04N5/765;H04N5/77;H04N5/781 主分类号 G11B33/10
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