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Color video and audio recording and/or reproducing apparatus
| Details |
Inventors: Kawakami, Hiroshi; Narita, Takato;
Assignee: Sony Corporation (Tokyo, JP)
Primary Examiner: Perkey; W. B.
Assistant Examiner:
Attorney, Agent or Firm: Sinderbrand; Alvin
In an apparatus for recording, in successive parallel tracks on a record medium, an audio signal and a color video signal comprised of a luminance signal and a chrominance signal constituted by at least two chrominance signal components, and in which the luminance and chrominance signals are recorded in alternate tracks, respectively, with the chrominance signal components being time-base-compressed and time-division-multiplexed so as to be arranged alternately in sequence in the respective tracks; the audio signal frequency modulates at least one carrier to provide a first frequency modulated output in a predetermined frequency band, the time-base-compressed and time-division-multiplexed chrominance signal components frequency modulate a second carrier to provide a second frequency modulated output in a frequency band above the predetermined frequency band of the first frequency modulated output, the first and second frequency modulated outputs are combined, as in an adder or mixer, the luminance signal is processed, for example, in a frequency modulator, and then supplied to first recording heads for recording in the respective ones of the alternate tracks, and second recording heads receive the combined first and second frequency modulated outputs for recording in the others of the alternate tracks. |
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DETAILED DESCRIPTION Accordingly, it is an object of the present invention to provide an apparatus, such as, a VTR, for effecting high quality recording and reproducing of both color video and audio signals.
More specifically, it is an object of this invention to provide a recording and reproducing apparatus, as aforesaid, in which luminance and chrominance signals are recorded in separate slant tracks extending obliquely across the tape and being scanned by respective rotary heads, and the audio signals are also recorded in slant tracks by rotary heads so that the audio signals can be recorded and reproduced with high fidelity.
It is still another object of this invention to provide a recording and reproducing apparatus, as aforesaid, in which the audio signals are frequency-multiplexed with the chrominance signal at the lower side of the frequency band of the chrominance signal and are recorded in the same slant tracks as the chrominance signal by means of the rotary heads which record the latter.
In accordance with an aspect of this invention, in an apparatus for recording, in successive parallel tracks on a record medium, an audio signal and a color video signal comprised of a luminance signal and a chrominance signal constituted by at least two chrominance signal components, and in which the luminance and chrominance signals are recorded in alternate tracks, respectively, with the chrominance signal components being time-base-compressed and time-division-multiplexed so as to be arranged alternately in sequence in the respective tracks; first frequency modulating means frequency modulates at least one carrier by the audio signal and provides a first frequency modulated output in a predetermined frequency band, second frequency modulating means frequency modulates a second carrier by the time-base-compressed and time-division-multiplexed chrominance signal components and provides a second frequency modulated output in a frequency band above the predetermined frequency band of the first frequency modulated output, the luminance signal is processed, for example, frequency modulated, and applied to first recording means for recording in the respective ones of the alternate tracks, mixing means combine the first and second frequency modulated outputs, and second recording means receive the combined first and second frequency modulated outputs from the mixing means for recording in the others of the alternate tracks
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