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US 11,069,311 B1Granted
Colorblind video adapter
OwnerRobert Sternbachinventor
Life of this patent
Estimating the term…
Abstract
A colorblind video adapter may include four difference amplifiers. A first difference amplifier may amplify a red signal relative to a green signal to create a red contrast signal, while a second difference amplifier may amplify the green signal relative to the red signal to create a green contrast signal. Outputs from the first two difference amplifiers may be provided to a second two difference amplifiers. The third difference amplifier may sum the red input signal and the red contrast signal to create a red output signal, while the fourth difference amplifier may sum the green input signal and the green contrast signal to create a green output signal.
Claims20
A colorblind video adapter comprising:
- a first difference amplifier (first DA) having a first DA red input line, a first DA green input line, and a first DA output line;
- a second difference amplifier (second DA) having a second DA red input line, a second DA green input line, and a second DA output line;
- a third difference amplifier (third DA) having a third DA red input line, a third DA red contrast input line, and a third DA red output line, wherein the first DA output line is connected to the third DA red contrast input line, wherein the first DA red input line, the second DA red input line, and the third DA red input line are connected to a circuit red input line, wherein the circuit red input line corresponds with a red RGB (red, green, blue) output signal from a RGB video output port, and wherein the third DA is configured to transmit a red signal via the third DA red output line to drive a red RGB input signal of a display device;
- and
- a fourth difference amplifier (fourth DA) having a fourth DA green input line, a fourth DA green contrast input line, and a fourth DA green output line, wherein the second DA output line is connected to the fourth DA green contrast input line, wherein the first DA green input line, the second DA green input line, and the third DA green input line are connected to a circuit green input line, wherein the circuit green input line corresponds with a green RGB output signal from a RGB video output port, and wherein the fourth DA is configured to transmit a green signal via the fourth DA green output line to drive a green RGB input signal of the display device.
2 more elements
A colorblind video adapter, comprising:
- an input port configured to receive a red input RGB video signal and a green input RGB video signal;
- a first difference amplifier (first DA) configured to produce a red contrast signal by amplifying the red input video signal relative to the green input video signal;
- a second difference amplifier (first DA) configured to produce a green contrast signal by amplifying the green input video signal relative to the red input video signal;
- a third difference amplifier (third DA) configured to produce a red intensity signal by summing the red contrast signal and the red input RGB video signal, the red contrast signal being proportional to a difference between the red video input signal and the green video input signal;
- a fourth difference amplifier (fourth DA) configured to produce a green intensity signal by summing the green contrast signal and the green input RGB video signal, the green contrast signal being proportional to a difference between the green video input signal and the red video input signal, the third DA being different from the fourth DA;
- and
- an output port configured to transmit a red output RGB video signal and a green output RGB video signal based on the red intensity signal and the green intensity signal.
4 more elements
A colorblind video adapter comprising:
- an input port configured to receive an input video signal, the input video signal comprising red, green, and blue RGB video input signals;
- a video signal processor configured to:
- amplify a first contrast level of the red video input signal relative to the green video input signal to create a red video output signal by adding to the red video input signal a first amount proportional to a difference between the red video input signal and the green video input signal, and
- amplify a second contrast level of the green video input signal relative to the red video input signal to create a green video output signal by adding to the green video input signal a second amount proportional to a difference between the green video input signal and the red video input signal;
- an output port configured to transmit an output video signal, the output video signal comprising the altered red and green video output signals and the unaltered blue video input signal;
- along with the horizontal and vertical sync signals;
- and
- a display device configured to display information based on the output video signal.
5 more elements
Dependencies are inferred from the claim text.