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US 5,289,269 AGranted
Color television camera with details of luminance signal formation
AssigneeNippon Television Network Corporation
InventorsYoshio Sugimori, Yoshihide Kimata, Tadao Kurosaki
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Abstract
A high quality non-interlaced television signal is generated without using a large size circuit. Interlaced television signals are obtained from four image pickup devices. A luminance or green signal in the interlaced television signals consists of two interlaced channels. These two channel luminance or green signals are simply combined to produce the non-interlaced signal without modifying the driving frequency of the image pickup devices.
Claims45
A television camera comprising:
- a first image pickup device for receiving an optical image and generating a first luminance signal representative of image luminance on a first array of uniformly spaced scanning lines;
- a second image pickup device for receiving the optical image and generating a second luminance signal representative of image luminance on a second array of uniformly spaced scanning lines, said second array being offset from said first array by half the distance between the lines of said first array;
- a third image pickup device for receiving the optical image and generating a first color signal representative of a first color component on said first array of uniformly spaced scanning lines;
- a fourth image pickup device for receiving the optical image and generating a second color signal representative of a second color component on said first array of uniformly spaced scanning lines;
- and
- processing means for receiving said first luminance signal, said second luminance signal, said first color signal and said second color signal and generating a non-interlaced luminance signal, a first non-interlaced color difference signal representative of difference between said non-interlaced luminance signal and said first color signal, and a second non-interlaced color difference signal representative of difference between said non-interlaced luminance signal and said second color signal.
3 more elements
A television camera comprising:
- a first image pickup device for receiving an optical image and generating a first luminance signal representative of image luminance on a first array of uniformly spaced scanning lines;
- a second image pickup device for receiving the optical image and generating a second luminance signal representative of image luminance on a second array of uniformly spaced scanning lines, said second array being offset from said first array by half the distance between the lines of said first array;
- a third image pickup device for receiving the optical image and generating a first color signal representative of a first color component on said first array of uniformly spaced scanning lines;
- a fourth image pickup device for receiving the optical image and generating a second color signal representative of a second color component on said first array of uniformly spaced scanning lines;
- and
- processing means for receiving said first luminance signal, said second luminance signal, said first color signal and said second color signal and generating an output luminance signal, wherein said output luminance signal is selectively one of either said first luminance signal or said second luminance signal, a first color difference signal representative of the difference between said first luminance signal and said first color signal and a second color difference signal representative of the difference between said first luminance signal and said second color signal.
3 more elements
A television camera comprising:
- a first image pickup device for receiving an optical image and generating a first green signal representative of a green component on a first array of uniformly spaced scanning lines;
- a second image pickup device for receiving the optical image and generating a second green signal representative of the green component on a second array of uniformly spaced scanning lines, said second array being offset from said first array by half the distance between the lines of said first array;
- a third image pickup device for receiving the optical image and generating a first color signal representative of a first non-green component on said first array of uniformly spaced scanning lines;
- a fourth image pickup device for receiving the optical image and generating a second color signal representative of a second non-green component on said first array of uniformly spaced scanning lines;
- and
- processing means for receiving said first green signal, said second green signal, said first color signal and said second color signal and generating a non-interlaced green signal, a first non-interlaced color difference signal representative of the difference between said non-interlaced green signal and said first color signal and a second non-interlaced color difference signal representative of difference between said non-interlaced green signal and said second color signal.
3 more elements
A television camera comprising:
- a first image pickup device for receiving an optical image and generating a first luminance signal representative of image luminance on a first array of uniformly spaced scanning lines and a second luminance signal representative of image luminance on a second array of uniformly spaced scanning lines, said second array being offset from said first array by half the distance between the lines of said first array;
- a second image pickup device for receiving the optical image and generating a first color signal representative of a first color component on said first array of uniformly spaced scanning lines;
- a third image pickup device for receiving the optical image and generating a second color signal representative of a second color component on said first array of uniformly spaced scanning lines;
- and
- processing means for receiving said first luminance signal, said second luminance signal, said first color signal and said second color signal and generating a non-interlaced luminance signal, a first non-interlaced color difference signal representative of difference between said non-interlaced luminance signal and said first color signal, and a second non-interlaced color difference signal representative of difference between said non-interlaced luminance signal and said second color signal.
2 more elements
A television camera comprising:
- a first image pickup device for receiving an optical image and generating a first luminance signal representative of a green component on a first array of uniformly spaced scanning lines and a second green signal representative of the green component on a second array of uniformly spaced scanning lines, said second array being offset from said first array by half the distance between the lines of said first array;
- a second image pickup device for receiving the optical image and generating a first color signal representative of a first non-green color component on said first array of uniformly spaced scanning lines;
- a third image pickup device for receiving the optical image and generating a second color signal representative of a second non-green color component on said first array of uniformly spaced scanning lines;
- and
- processing means for receiving said first green signal, said second green signal, said first color signal and said second color signal and generating a non-interlaced green signal, a first non-interlaced color difference signal representative of difference between said non-interlaced green signal and said first color signal, and a second non-interlaced color difference signal representative of difference between said non-interlaced green signal and said second color signal.
2 more elements
Dependencies are inferred from the claim text.