Color television viewer
OwnerLuis W. Alvarezinventor
Life of this patent
Estimating the term…
Abstract
In this hand-held color television viewing device, differently colored, side-by-side rasters are produced on the screen of a cathode ray tube from standard color television signals by the use of three pairs of serial delay lines. One delay line of each pair stores a horizontal scan line of color video information for a single color signal while the other delay line of each pair, each in succession, outputs the previously stored line in one-third of a line scan period to the control element of the cathode ray tube. The three side-by-side rasters are then optically combined into a single, composite colored, greatly enlarged, virtual image of high brightness.
Claims26
A television viewing apparatus for visually displaying color television signals of a standard type, comprising,
- a television signal receiving circuit supplied with a television signal of a selected standard for simultaneously generating a plurality of separate, scan line color video signals,
- raster scan, cathode ray tube means for displaying a plurality of differently colored rasters side by side in the direction of horizontal line scanning,
- serial delay line means for separately sampling and holding each scan line color video signal, one scan line at a time, at one clock rate and subsequently outputting the sampled and held signal at a second, faster clock rate,
- switch means for sampling in succession, all of the delay lines' outputs in one, horizontal line scan period and for supplying the sampled outputs to the cathode ray tube means for display,
- means for optically combining the side-by-side rasters into a composite, full color image.
Television signal viewing apparatus comprising
- circuit means for receiving a color television signal and for simultaneously generating a plurality of separate color information, video line scan signals,
- raster scan, cathode ray tube display means for displaying a plurality of rasters in different colors nearly side by side in the direction of line scanning,
- separate serial delay means connected to the receiving means, for simultaneously sampling and holding each of the color information video scan line signals, one scan line at-a-time at a first clock pulse rate while outputting in succession, each of the next previously sampled and held video scan line signals at a second, higher clock pulse rate,
- electronic switch means for connecting the display means sequentially to each of the delay means so that the output of each delay means is supplied one at-a-time to display means during one line scan period, and
- means for optically combining the side-by-side colored rasters into a single image.
Television signal viewing apparatus for visually displaying color television signals of a standard type comprising
- circuit means for receiving a color television signal and for simultaneously generating a plurality of separate color information, video line scan signals,
- raster scan display means supplied with the video scan line signals for displaying a plurality of rasters in different colors aligned side by side, in the direction of line scanning,
- means for optically combining the side-by-side rasters into a composite color image along a single optical axis, the optical combining means including
- an objective lens symmetrically positioned on the optical axis and perpendicular to it,
- means interposed between the display means and the objective lens for optically adjusting the apparent optical path lengths from each of the rasters to the objective lens to be the same for the colors that are displayed,
- and a limited, light diverging screen onto which the composite color image is projected by the objective lens.
Dependencies are inferred from the claim text.