Television camera and recording system for high definition television having imagers of different frame rate
First Claim
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1. Video camera apparatus for generating video signals representative of images of a scene, comprising:
- a first video imaging device;
a second video imaging device;
optical means for directing light from said scene to said first and said second video imaging devices;
means for scanning said first video imaging device at a relatively fast frame rate;
means for scanning said second video imaging device at a relatively slow frame rate; and
means for combining components of the outputs of said first and second video-imaging devices.
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Abstract
An apparatus and method for generating video signals using an improved camera system is disclosed. Video recording techniques which save bandwidth, and a temporal filter which is tailored to the eye'"'"'s temporal response are also disclosed. In the camera apparatus, an optical means directs light from a scene to both a first video imaging device operating at a relatively fast frame rate and a second video imaging device operating at a relatively slow frame rate. The outputs of the two video imaging devices can be combined to obtain a high definition video signal.
169 Citations
46 Claims
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1. Video camera apparatus for generating video signals representative of images of a scene, comprising:
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a first video imaging device; a second video imaging device; optical means for directing light from said scene to said first and said second video imaging devices; means for scanning said first video imaging device at a relatively fast frame rate; means for scanning said second video imaging device at a relatively slow frame rate; and means for combining components of the outputs of said first and second video-imaging devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for generating video signals representative of images of a scene, comprising the steps of:
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directing light from the scene to first and second video imaging devices such that they receive substantially the same optical image; scanning the first video imaging device at a relatively fast frame rate; scanning the second video imaging device at a relatively slow frame rate; and combining components of the outputs of the first and second video imaging devices. - View Dependent Claims (27, 28, 29)
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30. For use in conjunction with a video recording device having at least two recording channels, a method of recording video signals representative of images of a scene, comprising the steps of:
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directing light from the scene to a monochrome television camera and a color television camera such that the cameras receive substantially the same optical image; scanning the monochrome television camera at a relatively slow rate; scanning the color television camera at a relatively fast rate; recording a luminance component signal from said color television camera on one of the recording channels of said video recording device; combining an output of said monochrome television camera with color component signals from said color television camera to obtain a combined signal; and recording the combined signal on another channel of said video recording device. - View Dependent Claims (31, 32, 33)
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34. Video camera apparatus for generating video signals representative of images of a scene, comprising:
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first, second, third and fourth video imaging devices; optical means for directing light from said scene to all of video imaging devices such that they receive substantially the same image, with said third and fourth video imaging devices receiving different color components of the image, and the image on said first video imaging device being displaced by one diagonal pixel position with respect to the image on said second video imaging device; means for scanning said first video imaging device at a relatively fast scan rate; and means for scanning said second, third and fourth video imaging devices at relatively slow rates. - View Dependent Claims (35, 36, 37, 38, 39)
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40. In a high definition video system a video camera apparatus for generating video signals representative of images of a scene, components of said video signals being combinable to obtain a high definition video signal, comprising:
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a first video imaging device; a second video imaging device; optical means for directing light from said scene to said first and said second video imaging devices; means for scanning said first video imaging device at a relatively fast frame rate; and means for scanning said second video imaging device at a relatively slow frame rate; components of the outputs of said first and second video imaging devices being combinable to obtain a high definition video signal. - View Dependent Claims (41, 42, 43, 44, 45, 46)
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Specification