Method for detecting a specific recording position on a recording medium and an apparatus using this method
AssigneeOlympus Optical Co., Ltd.
InventorKenji Furuta
Life of this patent
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Abstract
A method and apparatus for detecting a specific recording position on a recording medium, wherein a detected cue signal is reproduced at a spontaneous travel speed of the recording medium, the detected cue signal having a frequency corresponding to the frequency of a given cue signal which was recorded at a predetermined recording travel speed of the recording medium at a specific position of the recording medium; and the specific position is determined by counting the frequency of the detected cue signal, taking as a reference a repetitive reel signal having a period which is a function of the rotational frequency of the reel on which the recording medium is wound.
Claims8
Apparatus for detecting a specific recording position on a recording medium comprising:
- first means for providing a plurality of cue signals containing mutually different frequency components;
- second means coupled to said first means for recording one of said cue signals at a specific recording position on the recording medium;
- third means coupled to said second means including a reel on which is wound said recording medium, and means for rotating said reel to cause said recording medium to travel by the rotation of said reel, thereby driving said recording medium;
- fourth means coupled to said third means for providing a reel signal corresponding to the rotation of said reel;
- fifth means coupled to said third means for reproducing a detected cue signal corresponding to said recorded one of said cue signal from said recording medium when said recording medium is driven by the rotation of said reel;
- and
- sixth means coupled to said fourth and fifth means for counting the frequency components of said detected cue signal, taking said reel signal as a reference, and for generating data which represents said specific position as a function of said counted frequency components.
A method for detecting a specific recording position on a recording medium, the recording medium being wound on a reel, the method comprising:
- reproducing a detected cue signal at a spontaneous travel speed of the recording medium, said detected cue signal having a frequency corresponding to the frequency of a given cue signal which was recorded at a predetermined recording travel speed of the recording medium at a specific position of the recording medium wound on a reel;
- and
- determining said specific position by counting the frequency of said detected cue signal, taking as a reference a repetitive reel signal having a period which is a function of the rotational frequency of said reel.
Dependencies are inferred from the claim text.