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Magnetic-disc-recording-and-or-reproducing-apparatus

Apparatus and method for extracting a portion of an image

An object of the present invention is to provide a technique for extracting or cutting out a ...

Chrominance signal reproducing apparatus for video tape recorder

It is a main object of the present invention to eliminate the crosstalk components from the ...

Video signal recording and reproducing apparatus a frequency down-cinverted luminance signal into the vertical retrace line interval of a recording signal

Accordingly, it is an object of the present invention to provide a video signal recording and ...

System for colorizing video with both pseudo-colors and selected colors

The present invention is directed to an improved system for colorization of monochrome video frames ...

Recording method of still video apparatus

To achieve the object mentioned above, according to the basic concept of the present invention, if ...

Apparatus for detecting a cut in a video

What is claimed is: 1. A method for detecting a cut in a video, comprising the steps of: (a) ...

Optical component containing a maximum of 200 wt.-ppm of chlorine

What is claimed is: 1. Optical component with a cylindrical core glass of synthetic quartz glass ...

Television signal reception apparatus and method, and broadcast reception apparatus and method

To resolve the above described shortcomings, one objective of the present invention is to improve a ...

Video recording and reproducing apparatus with crosstalk reduction

Referring first to FIGS. 1, 2A and 2B, the first embodiment of the color video signal recording ...

Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape

What is claimed is: 1. A process for thermoremanent duplication of magnetic signals of a magnetic ...

Magnetic disc recording and/or reproducing apparatus

Details

Inventors: Saito, Etsuro;
Assignee: Sony Corporation (Tokyo, JP)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:

In an apparatus for recording and/or reproducing signals on a flexible disc which is rotatably mounted in a jacket having an indicator for indicating the number of tracks on which the signals have already been recorded, a transducer records and/or reproduces the signals on a surface of the disc so as to form a plurality of circular tracks thereon. The transducer is subsequently moved in the radial direction of the disc to the next adjacent track. The apparatus is further provided with an indicator driving mechanism for driving the indicator of the jacket to shift the latter to a corresponding position as related to the number of the recorded tracks. The indicator driving mechanism is driven in synchronism with the movement of the transducer.

DETAILED DESCRIPTION In an attempt to provide a direct visual display of the number of tracks recorded on a magnetic sheet, a magnetic sheet jacket has been designed and is equipped with indicator means in a sheet-containing jacket body to indicate the number of recorded tracks thereon.
The object of the present invention resides in providing a magnetic recorder adapted for loading such a magnetic sheet jacket therein.

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