公开(公告)号：US3803632A

公开(公告)日：1974-04-09

申请号：US18937671

申请日：1971-10-14

Applicant: SYCOR INC

Inventor： SHAH H ,  IRWIN S ,  APPLE J

IPC: G11B15/28 ,  G11B15/54 ,  G11B27/10 ,  G11B15/02

CPC classification number: G11B27/10 ,  G11B15/28 ,  G11B15/54

Abstract: An optical-mechanical clock for controlling the spacing of data bits recorded on magnetic tape and for controlling the rate at which the tape moves across the recording head. The clock signal is generated by an optical shutter driven by and physically linked to the tape driving source, and positioned between a light source and an optical pick-off. The electrical output of the pick-off is utilized to control either or both the tape speed and the data insertion rate.

Abstract translation: 一种用于控制记录在磁带上的数据位的间隔并用于控制磁带在记录头上移动的速率的光学机械时钟。 时钟信号由由光驱驱动并物理地连接到带驱动源的光学快门产生，并且位于光源和光学拾取器之间。 拾取器的电气输出用于控制磁带速度和数据插入速率。