发明授权
- 专利标题： Tape recorder with automatic tape end stopping and alarm generation
- 专利标题（中）： 磁带录音机带自动磁带终止和报警发生
-
申请号： US148503申请日： 1980-05-09
-
公开(公告)号： US4370684A公开(公告)日： 1983-01-25
- 发明人: Katsumi Kanayama , Kazuyasu Motoyama , Kenzi Furuta
- 申请人： Katsumi Kanayama , Kazuyasu Motoyama , Kenzi Furuta
- 申请人地址： JPX Tokyo
- 专利权人： Olympus Optical Co., Ltd.
- 当前专利权人： Olympus Optical Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-64439[U] 19790515
- 主分类号： G11B15/02
- IPC分类号： G11B15/02 ; G11B15/093 ; G11B27/34 ; G11B33/10 ; G11B19/06 ; G11B15/48
摘要：
In a tape recorder, which has a circuit for producing pulses according to the running of a tape, there is provided an electronic counter circuit having a counter for counting pulses produced from that circuit and a display section for displaying the count. The electronic counter circuit includes a missing-pulse detector for detecting the pulse interval of the output pulse signal of the pulse generating circuit and producing a detection signal when the detected pulse interval exceeds a predetermined interval, a circuit for producing an alarm for a predetermined period of time according to the output signal of the missing-pulse detector, and a circuit for supplying a rotation stop signal to a motor of the tape recorder according to the output signal of the missing-pulse detector.
公开/授权文献
- US5402718A Turntable type printing machine 公开/授权日：1995-04-04