发明授权
US4385228A Display device for tape recorder with automatic shut off and reset inhibiting 失效
带录音机的显示设备,具有自动关闭和复位禁止功能

Display device for tape recorder with automatic shut off and reset
inhibiting
摘要:
In a tape recorder including a circuit for generating a pulse signal corresponding to an amount of tape travel, an electronic counter circuit is provided which includes a counter for counting pulses and a display section for displaying a count value. The electronic counter circuit further includes a memory for receiving voltage at all times from a power supply and storing a count value and a control section adapted to maintain the energization of the display section for a predetermined time period after the operation of the tape recorder is stopped and to stop the energization of the display section thereafter, while inhibiting the resetting of the counter.
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