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US 4,907,102 AGranted
Magnetic recording playback
AssigneePioneer Electronic Corporation
InventorsTaiji Tsunoda, Takashi Iwasawa
Life of this patent
Estimating the term…
Abstract
A magnetic recording playback system compatible with both a 8 mm video format and a rotary head digital audio tape form. A rotary head records tilted track on the tape. The track is divided into four areas which recorded with different tapes of audio signals. The signals may also be divided between adjacent tracks. Each area has its own control information. Different sampling rates are used for the two different formats.
Claims2
A magnetic recording playback, comprising:
- a rotary magnetic head;
- a magnetic tape wound at an angle on said rotary magnetic head, wherein said rotary magnetic head records, on said tape, tape tracks tilted in a longitudinal direction of said tape, each said track being divided into a plurality of areas;
- means for sampling an analog signal according to a clock signal having a frequency of substantially Nf;
- and
- means for causing said rotary magnetic head to record those of said samples signal which are sampled every N-th occurrence of said clock signal in a corresponding one of said areas wherein, when Nf equals 2f, said causing means causes said rotary magnetic head to record said sampled analog signal sampled at an odd numbered occurrence of said clock signal as a group in a first one of said areas and to record said sampled analog signal sampled at an even numbered occurrence of said clock signal as a group in a second one of said areas other than said first one;
- and
- wherein, when Nf equals f, said causing means causes said rotary magnetic head to record said sampled analog signal as a group in one of said first and second areas.
4 more elements
Dependencies are inferred from the claim text.