Image signal recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorRyo Fujimoto
Life of this patent
Estimating the term…
Abstract
An image signal recording apparatus of this invention is an apparatus for recording an image signal on a recording medium. This apparatus is arranged to form a recording image signal to be recorded on the recording medium by employing a first image signal having a first frequency band and a third image signal which is obtained by sampling a second image signal having a second frequency band and which has a third frequency band narrower than the first frequency band and the second frequency band, and then to record the thus-formed recording image signal on the recording medium. With this arrangement, it is possible to record on the recording medium a wide-band image signal without any deterioration.
Claims21
An image signal recording apparatus for recording an image signal on a recording medium, comprising:
- (A) first image signal outputting means for outputting a first image signal having a first frequency band;
- (B) second image signal outputting means for outputting a second image signal having a second frequency band and a signal component which differs from a signal component of said first image signal;
- (C) third image signal outputting means for sampling said second image signal output from said second image signal outputting means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal;
- (D) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by using said first image signal output from said first image signal outputting means and said third image signal output from said third image signal outputting means;
- and
- (E) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
An image signal recording apparatus for recording on a recording medium an image signal obtained by imaging an object, comprising:
- (A) first image sensing means for imaging the object to generate a first image signal having a first frequency band;
- (B) second image sensing means for imaging the object to generate a second image signal having a frequency band equal to said first frequency band of said first image signal and having a signal component which is the same in kind as a signal component of said first image signal, the arrangement of picture elements of said second image sensing means differing from the arrangement of picture elements of said first image sensing means in relation to the object;
- (C) third image sensing means for imaging the object to generate a third image signal having a second frequency band and a signal component which differs in kind from a signal component of one of said first image signal and said second image signal;
- (D) fourth image signal forming means for sampling said third image signal generated by said third image sensing means to form a fourth image signal having a third frequency band which is narrower than said first and second frequency bands;
- (E) recording image signal forming means for forming a first recording image signal for one frame by using said first image signal output from said first image sensing means and said fourth image signal output from said fourth image signal forming means and for forming a second recording image signal for one frame by using said second image signal output from said second image sensing means and said fourth image signal output from said fourth image signal forming means;
- and
- (F) recording means for recording said first recording image signal for one frame and said second recording image signal for one frame which have been formed by said recording image signal forming means, in different regions on the recording medium, respectively.
An image signal recording apparatus for recording an image signal on a recording medium, comprising:
- (A) first image signal outputting means for outputting a first image signal having a first frequency band;
- (B) second image signal outputting means for outputting a second image signal having a second frequency band and a signal component which differs from a signal component of said first image signal;
- (C) third image signal outputting means for sampling said second image signal output from said second image signal outputting means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal;
- (D) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by frequency-multiplexing said first image signal output from said first image signal outputting means and said third image signal output from said third image signal outputting means;
- and
- (E) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
An image signal recording apparatus for recording on a recording medium an image signal obtained by imaging an object, comprising:
- (A) An image sensing part, including:
- (1) image sensing means for imaging the object to generate a first image signal having a first frequency band and a second image signal having a second frequency band different from said first frequency band and a signal component which is different from a signal component of said first image signal;
- and
- (2) third image signal outputting means for sampling said second image signal generated by said image sensing means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal;
- and
- (B) a recording part provided integrally with said image sensing part, including:
- (1) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by using said first image signal output from said image sensing means and said third image signal output from said third image signal forming means;
- and
- (2) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
Dependencies are inferred from the claim text.